{"id":1809,"date":"2022-04-11T12:33:02","date_gmt":"2022-04-11T12:33:02","guid":{"rendered":"https:\/\/tiaedu.org\/?page_id=1809"},"modified":"2022-05-10T12:15:23","modified_gmt":"2022-05-10T12:15:23","slug":"research-publications","status":"publish","type":"page","link":"https:\/\/tiaedu.org\/old_sites\/index.php\/research-publications\/","title":{"rendered":"Research Publications"},"content":{"rendered":"\t\t
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Research Publications<\/h1>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t
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Research Publications<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t
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Title:<\/strong> Understanding the Effect of Uniaxial Tensile Strain on the Early Stages of Sensitizationin AISI 304 Austenitic Stainless Steel<\/p>

Author(s):<\/strong> P S Chowdhury, S K Guchhait, P K Mitra, P Mukherjee, N Gayathri and M K Mitra.<\/p>

Journal Name:<\/strong> Materials Chemistry and Physics Volume: 155; Year: 2015; Page: 217-222; ISSN: 0254-0584<\/p>

Abstract:<\/strong> In the present study, an attempt has been made to understand the effect of different competing mechanisms controlling the overall degree of sensitization (DOS) of deformed austenitic stainless steel at the early stage of sensitization. The Double Loop Electrochemical Potentiokinetic Reactivation (DL-EPR) studies were performed to characterize the Degree of Sensitization (DOS) as a function of both pre-defined strain and sensitization temperature. X-ray Diffraction (XRD) and Scanning Electron Microscopy (SEM) were used to explain the phenomena qualitatively. A non-monotonous behaviour in the variation of DOS has been observed with deformation and sensitization temperature. The presence of Deformation Induced Martensites (DIM) and their transformation into tempered martensites (\u03b1 + M23C6) at higher temperatures was found to play major roles in controlling the overall sensitization and desensitization processes.<\/p>

URL :\u00a0 http:\/\/www.sciencedirect.com\/science\/article\/pii\/S025405841500125X<\/a><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t

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\"\"Title:<\/strong> PSIM based Design of an Inbuilt Solar Powered Mobile Phone Battery Charging System IFRSA<\/p>

Author(s):<\/strong>\u00a0 Diptanu Das, Siddhartha Sankar Deb<\/strong>,\u00a0 Prasenjit Debnath.<\/p>

Journal Name:<\/strong> International Journal of Electronics Circuits and Systems Volume: 4; Year: 2015; Issue: 1; Page: 18-24; ISSN: 2277 \u2013 5870<\/p>

Abstract:<\/strong> The evolution of techniques of harvesting energy from the sun to power up portable devices provides clean and sustainable way to eliminate wires and battery maintenance and deploying self-powered devices. This paper suggests implementation of a small solar charging module in the mobile phone back panel itself to provide wireless charging. Some implementation of solar charger for portable devices are analyzed, showing drawbacks and benefits for each architecture and finally a complete integrated solution is proposed which proves it\u2019s efficiency to charge the mobile batteries under sunlight under varying conditions.<\/p>

URL : http:\/\/www.ifrsa.org\/images\/iijecsvol4issue1\/5%20five.pdf<\/a><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t

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\"\"Title:<\/strong> Soft sets combined with interval valued intuitionistic fuzzy sets of type-2 and rough sets.<\/p>

Author(s):<\/strong> Anjan Mukherjee, Abhijit Saha<\/strong>, Ajoykanti Das.<\/p>

Journal Name:<\/strong> New Trends in Mathematical Sciences Volume: 3; Year: 2015; Issue: 2; Page: 199-218; ISSN: 2147 \u2013 5520<\/p>

Abstract:<\/strong> Fuzzy set theory, rough set theory and soft set theory are all mathematical tools dealing with uncertainties. The concept of type-2 fuzzy sets was introduced by Zadeh in 1975 which was extended to interval valued intuitionistic fuzzy sets of type-2 by the authors. This paper is devoted to the discussions of the combinations of interval valued intuitionistic sets of type-2, soft sets and rough sets. Three different types of new hybrid models, namely-interval valued intuitionistic fuzzy soft sets of type-2, soft rough interval valued intuitionistic fuzzy sets of type-2 and soft interval valued intuitionistic fuzzy rough sets of type-2 are proposed and their properties are derived.<\/p>

URL: http:\/\/www.ntmsci.com\/AjaxTool\/GetArticleByPublishedArticleId?PublishedArticleId=75<\/a><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t

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\"\"Title:<\/strong> Solid-state transformation of single precursor vanadium complex nanostructures to V2O5 andVO2: catalytic activity of V2O5 for oxidative coupling of 2-naphthol.<\/p>

Author(s):<\/strong> Mukul Pradhan,Anindita Roy,Arun Kumar Sinha,Ramkrishna Sahoo, Dibakar Deb<\/strong> and Tarasankar Pal.<\/p>

Journal Name:<\/strong> Dalton Transactions Volume: 44; Year: 2015; Issue: 4; Page: 1889-1899; ISSN: 1477-9226<\/p>

Abstract:<\/strong> A vanadium complex, [(C5H5N)2V2O3-H2O], of different morphologies has been obtained via a modified hydrothermal procedure using pyridine and VOSO4 salt as the starting material. The evolved [(C5H5N)2V2O3-H2O] nanobelts are of 50\u2013200 nm in width and of a length up to several millimeters. At higher temperatures (600 \u00b0C), the solid [(C5H5N)2V2O3-H2O] nanostructures are converted to vanadium pentoxide (V2O5) and vanadium dioxide (VO2) when heated in air and nitrogen atmosphere, respectively. During growth, the mechanism of the evolution of octahedra, truncated octahedra, and hollow truncated octahedra of [(C5H5N)2V2O3-H2O] are reported for the first time. These types of well-structured morphology are also isolated while V2O5 and VO2 are evolved. The as-grown belt-like and octahedral morphologies of [(C5H5N)2V2O3-H2O] are retained during the solid-state transformation, suggesting a route to evolve crystalline nanomaterials. Again, the morphological evolution of the [(C5H5N)2V2O3-H2O] nanostructures has been examined to be pyridine and precursor vanadyl sulfate (VS) concentration dependent. Thus, we are able to isolate truncated octahedra as an intermediate during the formation of [(C5H5N)2V2O3-H2O] nanobelts and nanoflowers with a high pyridine (Py) concentration. Interestingly, longer reaction times successively featured the transformation of truncated octahedra into nanobelts. Nanobelt evolution is not observed at low pyridine concentrations. However, the formation of octahedral morphology takes place at low pyridine concentration. All of the nanostructures were critically examined and characterized thoroughly by various physical techniques to ascertain their purity, structure and composition. An interesting, thermodynamically stable, single crystalline product from DMF soluble [(C5H5N)2V2O3-H2O] has been characterized, which indirectly supports the composition of [(C5H5N)2V2O3-H2O]. Selectively, vanadium pentoxide nanobelts have been found to be an efficient catalyst for the oxidative coupling of 2-naphthol to binaphthols under a molecular oxygen atmosphere.<\/p>

URL :<\/strong> http:\/\/pubs.rsc.org\/en\/content\/articlelanding\/2015\/dt\/c4dt02863e#!divAbstract<\/a><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t

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\"\"Title:<\/strong> Synthesis and Structure of [Et3NH][Fe(HL)2] [H3L=L-2-(3,5-Di-tert-butyl-2-hydroxybenzylamino) succinic Acid] and Its Catalytic Activity towards Efficient Photodegradation of Dyes in the Presence of H2O2<\/p>

Author(s):<\/strong> Sohaham Dasgupta, Sanghamitra Atta, N. D. Pradeep Singh, Dibakar Deb<\/strong>, W. Scott Kassel and Manish Bhattacharjee.<\/p>

Journal Name:<\/strong> European Journal of Inorganic Chemistry Volume: 3; Year: 2014; Issue: 30; Page: 5125-5134; ISSN: 1099-0682<\/p>

Abstract:<\/strong> A new biogenic potentially tetradentate ligand, l-2-(3,5-di-tert-butyl-2-hydroxybenzylamino)succinic acid, has been synthesized. Upon reaction with FeCl3 in the presence of triethylamine, it afforded the complex [Et3NH][Fe(HL)2]. The complex was structurally characterized and was used for homogeneous photocatalytic degradation of methylene blue (MB), malachite green (MG), crystal violet (CV) and rhodamine B (RhB) under visible-light irradiation in aqueous solution in the presence of H2O2.<\/p>

URL :<\/strong> http:\/\/onlinelibrary.wiley.com\/doi\/10.1002\/ejic.201402314\/abstract<\/a><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t

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\"\"Title:<\/strong> Synthesis and Structure of a Series of V-M (M = Li, Na & K) Heterobimetallic Complexes Using Metalloligand (VO2L): Discrete Mononuclear to 3D Coordination Polymer<\/p>

Author(s):<\/strong> A. K. De, D. Deb<\/strong>, A. Koch and M. Chakraborty.<\/p>

Proceedings Name:<\/strong> Proceedings of REACH-2015: An International Symposium on Recent Advances in Chemistry, Organized by UGC-Centre for Advance Studies in Chemistry North Eastern Hill University Shillong-793022, India<\/p>

Abstract:<\/strong> Synthesis of heterobimetallic and multimetallic complexes of vanadium could be obtained by several routes. One of the best routes to synthesize such complexes is the reaction of a preformed metal complex having free Lewis basic site(s), known as metalloligand, with another Lewis acidic metal(s) [1, 2]. Here vanadium metalloligand is used to synthesize heterometallic and multimetallic complexes. All these studies may be very significant with regards to furthering our basic understanding of the structural topologies of heterometallic, as well as providing methods to enable a systematic approach to be used during synthesis of polymeric network. The major goal of this research work is to study the binding properties of the vanadium metalloligand with different alkali metal ions. We have synthesized monomeric, dimeric and polymeric vanadium complexes, [Li(H2O)3VO2L], [{Na(H2O)3(VO2)L}2.H2O] and [K(H2O)3VO2L]n [(HL) respectively using vanadium metalloligand [VO2L]- by the use of organic ligand, salicylaldehyde isonicotinoylhydrazone (HL) having oxygen and nitrogen donors.<\/p>

Title:<\/strong> Textile Fibre Classification Using Artificial Neural Network<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t

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\"\"Title:<\/strong> Textile Fibre Classification Using Artificial Neural Network<\/p>

Author(s): Partha Pratim Deb<\/strong>, Dinabandhu Bhandari.<\/p>

Journal Name:<\/strong> International Journal of Advanced Research in Computer Science and Software Engineering Volume: 5; Year: 2015; Issue: 1; Page: 385-392; ISSN: 2277-128X<\/p>

Abstract:<\/strong> Recognition of textile fiber has a major influence on the success of the textile industry. Resilience, dry tenacity, Wet tenacity moisture regain (absorbency), extension are the most important properties that are used in classifying fibers. Attempt has been made in developing a neural network (ANN) based methodology in determining the category of a fiber. The proposed methodology has been demonstrated on numerous samples collected from the laboratory and satisfactory performance has been observed.<\/p>

URL :<\/strong> http:\/\/www.ijarcsse.com\/docs\/papers\/Volume_5\/1_January2015\/V5I1-0269.pdf<\/a><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t

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Title:<\/strong>Design & Implementation Approach for Error Free Clinical Data Repository for the Medical Practitioners<\/p>

Author(s) :<\/strong> Kisor Ray, Santanu Ghosh, Mridul Das, Bhaswati Ray<\/p>

Journal Name: <\/strong>International Journal of Computer Trends and Technology, Volume-21 Number-2,2015, ISSN 2231-2803<\/p>

Abstract:<\/strong> The modern treatment of any disease is heavily dependent on the medical diagnosis. Clinical data obtained through the diagnostics tests need to be collected and entered into the computer database in order to make a clinical data repository. In most of the cases, manual entry is an absolute necessity. However, manual entry can cause errors also, leading to wrong diagnosis. This paper explains how data could be entered free of error to reduce the chances of wrong diagnosis by designing and implementation of a simple database driven application. Subjects: Databases (cs.DB)<\/p>

URL :<\/strong> http:\/\/arxiv.org\/abs\/1503.08636<\/a><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t

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Title :<\/strong>Easy and Fast Design and Implementation of PostgreSQL based image handling application<\/p>

Author(s) :<\/strong> Kisor Ray, Sourav Bag, Saumen Sarkar<\/p>

Journal Name: <\/strong>International Journal of Advanced Research in Computer Science and Software Engineering, Volume 5, Issue 2, February 2015, ISSN 2277 128X Subjects: Databases (cs.DB)<\/p>

Abstract:<\/strong> In modern computing, RDBMS are great to store different types of data. To a developer,one of the major objectives is to provide a very low cost and easy to use solution to an existing problem. While commercial databases are more easy to use along with their new as well as documented features come with complicated licensing cost, free open source databases are not that straightforward under many situations. This paper shows how a completely free advanced open source RDBMS like PostgreSQL could be designed and modified to store and retrieve high quality images in order to use them along with a frontend application.<\/p>

URL :<\/strong> http:\/\/arxiv.org\/abs\/1503.05294<\/a><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t

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\"\"Title :<\/strong>Design and Implementation of a GUI based Offline GIFT Tool to exchange data\u00a0 between different systems Author(s) :<\/strong> Kisor Ray, Partha Pratim deb<\/strong><\/p>

Journal Name:<\/strong> International Journal of Computer Applications, Volume 114, No.3, March 2015, ISSN 09758887 Subjects: Computers and Society (cs.CY) Abstract: Multiple Choice Questions or MCQs are very important for e-learning. Many MCQ Tools allow us to generate MCQs very easily. However, in most of the cases they are not portable. That means MCQs generated for one system cannot be used for other unless a common format is used. So, collaboration and\/or up gradation becomes a time consuming tedious task. In this paper, we will examine how tool could be designed which can produce portable MCQs and that too generating in the laptop and\/or desktop without any need for going online.<\/p>

URL :<\/strong> http:\/\/arxiv.org\/abs\/1503.05276<\/a><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t

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Title :<\/strong> Interactive MCQs as a tool for Knowledge Acquisition<\/p>

Author(s) :<\/strong> Kisor Ray, Saumen Sarkar<\/p>

Journal Name:<\/strong> International Journal of Advanced Research in Computer Science and Software Engineering, Volume 5, Issue 1, January 2015 ISSN: 2277 128X Subjects: Computers and Society (cs.CY)<\/p>

Abstract:<\/strong> Multiple Choice Questions or MCQs are very important for e-learning. Generally,MCQs are used as a tool for the assessment of student performance at the end of their learning sessions. Can MCQs become an important tool in the process of knowledge\u00a0 acquisition while attending a course? This paper intends to find out how MCQs could be used as a tool for the better understanding, coverage as well as knowledge acquisition.<\/p>

URL :<\/strong> http:\/\/arxiv.org\/abs\/1503.04937<\/a><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t

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Title :<\/strong>Use of Effective Audio in E-learning Courseware<\/p>

Author :<\/strong>Kisor Ray<\/p>

Journal Name:<\/strong> International Journal of Advanced Research in Computer Science and Software Engineering, Volume 4, Issue 9, September 2014 ISSN: 2277 128X Subjects: Computers and Society (cs.CY)<\/p>

Abstract:<\/strong> E-Learning uses electronic media, information & communication technologies to provide education to the masses. E-learning deliver hypertext, text, audio, images, animation and videos using desktop standalone computer, local area network based intranet and internet based contents. While producing an e-learning content or course-ware, a major decision making factor is whether to use audio for the benefit of the end users. Generally, three types of audio can be used in e-learning: narration, music and sound effect. This paper shows that the use of proper audio based on contents type and subject can make the content more interesting as well as help the end users to better understand the contents.<\/p>

URL :<\/strong> http:\/\/arxiv.org\/abs\/1503.04837<\/a><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t

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Title :<\/strong>Design and Implementation of Database Independent Auto Sequence Numbers<\/p>

Author :<\/strong>Kisor Ray<\/p>

Journal Name:<\/strong> International Journal of Computer Trends and Technology,Volume-20 Number-2,2015 ISSN 2231-2803 Subjects: Databases (cs.DB)<\/p>

Abstract:<\/strong> Developers across the world use autonumber or auto sequences field of the backend databases for developing both the desktop and web based data centric applications which is easier to use at the development and deployment purpose but can create a lot of problems under varied situations. This paper examines how a database independent autonumber could be developed and reused solving all the problems as well as providing the same degree of easy to use features of autonumber offered by modern Relational Database Systems.<\/p>

URL :<\/strong> http:\/\/arxiv.org\/abs\/1503.04385<\/a><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t

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\"\"(1) Phase behavior of poly diacetylene mixed with a xanthene dye at air\u2013water interface and onto solid support<\/p>

Sudip Suklabaidya, Sekhar Chakraborty<\/strong>, Bapi Dey, D. Bhattacharjee & Syed Arshad Hussain<\/p>

SOFT MATERIALS<\/em><\/strong> 2019, VOL. 17, NO. 1, 77\u201392<\/strong> https:\/\/doi.org\/10.1080\/1539445X.2018.1548358<\/a> (Taylor & Francis)<\/p>

ABSTRACT<\/p>

Polydiacetylene (PDA) and its derivatives exhibit interesting photophysical properties, specifically, visible colorimetric transformation which makes them promising candidates for applications in vast number of fields. PDA is obtained through photopolymerization of diacetylene monomers (DA) using UV-irradiation. UV-irradiation leads to the formation of meta stable nonfluorescent blue phase (blue polymer) which on further irradiation converted to stable auto fluorescent red phase (red polymer) with alternating triple and double bonds in ene-yen motif. Herein diacetylene monomers 10, 12-tricosadiynoic acid (TCDA) and amphiphilic octadecyl rhodamine B chloride (RhB18) has been used to prepare mixed Langmuir film. The presence of RhB18 at different molar ratio produces monolayer supramolecular structure as well as typical trilayer structure. Atomic force microscopy investigations gave visual evidence of the formation of trilayer. The mixed film containing TCDA mole fraction \u00a00.8 produces monolayer and TCDA mole fraction \u00a00.85 produces typical trilayer. Photopolymerization is possible only in the trilayer. Thus the phases of PDA can be tuned depending on the molar ratio of TCDA in the mixed film. This study demonstrates that the incorporation of dye RhB18 with diacetylene monomer TCDA provides a means for modulating the structure and chromatic features of PDA assemblies, giving rise to a new morphologies and unique optical properties. This may extend the field of application of PDA assemblies for sensing.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t

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\"\"(2) Electrical switching behaviour of a metalloporphyrin in Langmuir-Blodgett film<\/p>

Bapi Dey, Sekhar Chakraborty<\/strong>, Santanu Chakraborty, Debajyoti Bhattacharjee, Inamuddin, Anish Khan, Syed Arshad Hussain<\/p>

Organic Electronics<\/em><\/strong> 55 (2018) 50\u201362<\/strong><\/p>

A B S T R A C T<\/p>

Here we report the resistive switching behaviour of an water soluble anionic metalloporphyrin 5,10,15,20- Tetrakis(4-sulfonatophenyl)-21H,23H-porphine manganese(III) chloride (MnTPPS) assembled onto spin coated as well as in Langmuir-Blodgett (LB) film. To prepare LB film, water soluble MnTPPS molecules were incorporated into monolayers of two cationic matrix molecules Octadecyltrimethylammonium bromide (OTAB) and N-Cetyl-N,N,N, trimethyl ammonium bromide (CTAB) through electrostatic interaction. Successful incorporation of MnTPPS molecules into the matrix (OTAB\/CTAB) monolayers has been confirmed by measuring \u03c0 \u2013 A isotherm, \u03c0 \u2013 t curve and BAM investigations at air-water interface. From I \u2013 V characteristic it was found that by adjusting the measurement protocols (compliance current, sweeping direction) all the devices fabricated by using spin coated as well as LB films exhibit outstanding bipolar switching and threshold switching behaviour at room temperature. Presence of electron acceptor groups (SO3H) and \u03c0 \u2013 electron clouds on the MnTPPS molecules mainly play the crucial role for such observed switching behaviour onto ultrathin films. This type of bipolar memory switching and threshold switching in a single device is technologically very important to use as an active component for the non-volatile information storage and future optoelectronics devices.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t

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\"\"(3) Development of hard water sensor using Fluorescence Resonance Energy Transfer<\/p>

Dibyendu Dey, D. Bhattacharjee, S. Chakraborty<\/strong>, Syed Arshad Hussain<\/p>

Sensors & Actuators: B. Chemical<\/em><\/strong> 184 (2013) 268\u2013 273<\/strong>. <\/strong><\/p>

ABSTRACT<\/strong><\/p>

A method is presented for the sensing of water hardness by determining the concentration of calciumand magnesium in water, based on fluorescence resonance energy transfer (FRET) process. The principleof the proposed sensor is based on the change of FRET efficiency between two laser dyes Acriflavine(Acf) and Rhodamine B (RhB) in presence of permanent hard water components (CaCl2and MgCl2).Nanodimensional clay platelet laponite was used to enhance the efficiency of the sensor.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t

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\"\"(4) Incorporation of nano-clay saponite layers in the organo-clay hybrid films using anionic amphiphile stearic acid by Langmuir \u2013 Blodgett (LB) technique
Syed Arshad Hussain, S. Chakraborty<\/strong>, D. Bhattacharjee, R. A.Schoonheydt
Thin Solid Films 536 (2013) 261\u2013268.<\/p>

ABSTRACT<\/strong>
In general cationic amphiphiles are used to prepare organo-clay hybrid film in Langmuir\u2013Blodgett (LB) technique. In this present communication we demonstrated a unique technique to prepare the organo\u2013clay hybrid films using an anionic amphiphile. The T\u2013O\u2013T type clay saponite was incorporated onto a floating stearic acid monolayer via a divalent cation Mg2+. Salt MgCl2 was mixed along with the clay dispersion in the LB trough and amphiphile solution was spread onto the subphase in order to make the organo-clay hybrid films. It was observed that salt (MgCl2) concentration on the subphase affects the organization of nano-dimensional clay platelet (saponite) in organo-clay hybrid films at air\u2013water interface as well as in LB films. Noticeable changes in area per molecule and shape of the isotherms were observed and measured at subphases with different salt concentrations. Infrared reflection absorption spectroscopy studies reveal that only an in-plane (996 cm\u22121) vibration of \u03bd (Si\\O) band occurred when the salt concentration was 10 mM. However, both in-plane (996 cm\u22121) and out-of-plane (1063 cm\u22121) vibrations of the \u03bd (Si\\O) band of saponite occurred when the subphase salt concentration was 100 mM. Also the out-of-plane vibration of \u03bd (OH) of saponite was prominent at higher salt concentration. This is because at lower salt concentration clay sheets remain flat on the surface whereas; at higher MgCl2 concentration they aggregated and form stacks of saponite layers. Also they may be slightly tilted with a very small tilt angle at higher salt concentration making a favorable condition for both in-plane and out-of-plane vibrations of \u03bd (Si\\O) in the hybrid films. Observed decrease in starting area per molecule in the pressure area isotherm measuredat higher salt concentration also supports the tilting of clay layers at air\u2013clay dispersion interface. Attentuated total reflectance Fourier transform infrared spectroscopy and Atomic Force Microscopy investigations of the hybrid films prepared with subphase using different salt concentrations also support this thesis.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t

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\"\"(5) Effect of nanoclay laponite and pH on the energy transfer between \u00a0\u00a0\u00a0\u00a0\u00a0 fluorescent dyes<\/p>

Dibyendu Dey, D. Bhattacharjee, S. Chakraborty<\/strong>, Syed Arshad Hussain<\/p>

Journal of Photochemistry and Photobiology A: Chemistry<\/em> 252 (2013) 174<\/p>

A B S T R A C T<\/strong><\/p>

Fluorescence resonance energy transfer (FRET) between two dyes acriflavine (Acf) and rhodamine B (RhB) were investigated in solution and layer-by-layer (LbL) self assembled films in presence and absence of clay mineral laponite. UV\u2013Vis absorption and fluorescence spectroscopy studies suggest both the dyes present mainly as monomer in solution and films. Energy transfer occurred from Acf to RhB in solution and LbL films. The energy transfer efficiency increases in presence of clay laponite and the maximum efficiency were 92.50% and 55.71% in clay dispersion and in LbL films respectively. Presence of laponite particles onto LbL film was confirmed by atomic force microscopy investigations with a surface coverage of more than 75%. Energy transfer efficiency was pH sensitive and the energy transfer efficiency varies from 4.5% to 44.45% in mixed dye solution for a change in pH from 3.0 to 12.0. With proper calibration it is possible to use the present system under investigation to sense pH over a wide range of pH from 3.0 to 12.0.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t

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\"\"(6) Development of a DNA sensor using molecular logic gate<\/p>

  1. Bhattacharjee, Dibyendu Dey, S. Chakraborty<\/strong>, S. A. Hussain, S. Sinha<\/li><\/ol>

    Journal of Biological Physics<\/em><\/strong> 06\/2013; 39(3):387-94<\/strong><\/p>

    Abstract <\/strong><\/p>

    This communication reports the increase in fluorescence resonance energy transfer (FRET) efficiency between two laser dyes in the presence of deoxyribonucleic acid (DNA). Two types of molecular logic gates have been designed where DNA acts as input signal and fluorescence intensity of different bands are taken as output signal. Use of these logic gates as a DNA sensor has been demonstrated.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t

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    \"\"(7) Adsorption kinetics of a fluorescent dye in a long chain fatty acid matrix<\/p>

    Syed Arshad Hussain, Soma Banik, S. Chakraborty<\/strong>, D. Bhattacharjee<\/p>

    Spectrochimica Acta Part A<\/em><\/strong> 79 (2011) 1642\u2013 1647. <\/strong><\/p>

    A B S T R A C T<\/p>

    This work reports the adsorption kinetics of a highly fluorescent laser dye rhodamine B (RhB) in a preformed stearic acid (SA) Langmuir monolayer. The reaction kinetics was studied by surface pressure\u2013time (\u2013t) curve at constant area and in situ fluorescence imaging microscopy (FIM). Increase in surface pressure (at constant area) with time as well as increase in surface coverage of monolayer film at air\u2013water interface provide direct evidence for the interaction. ATR\u2013FTIR spectra also supported the interaction and consequent complexation in the complex films. UV\u2013vis absorption and Fluorescence spectra of the complex Langmuir\u2013Blodgett (LB) films confirm the presence of RhB molecules in the complex films transferred onto solid substrates. The outcome of this work clearly shows successful incorporation of RhB molecules into SA matrix without changing the photophysical characteristics of the dye, thus making the dye material as LB compatible.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t

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    \"\"(8) Fluorescence Resonance Energy Transfer between organic dyes adsorbed onto nano-clay and Langmuir\u2013Blodgett (LB) films<\/p>

    Syed Arshad Hussain, S. Chakraborty<\/strong>, D. Bhattacharjee, R.A. Schoonheydt<\/p>

    Spectrochimica Acta Part A<\/em> 75(2010) 664-670.<\/p>

    A B S T R A C T<\/p>

    In this communication we investigate two dyes N,N -dioctadecyl thiacyanine perchlorate (NK) and octadecyl rhodamine B chloride (RhB) in Langmuir and Langmuir\u2013Blodgett (LB) films with or with out a synthetic clay laponite. Observed changes in isotherms of RhB in absence and presence of nano-clay platelets indicate the incorporation of clay platelets onto RhB-clay hybrid films. AFM images confirm the incorporation of clay into hybrid films. FRET is observed in clay dispersion and LB films with and without clay. Efficiency of energy transfer is maximum in LB films with clay.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t

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    \"\"(9) Effect of nano-clay platelets on the J-aggregation of thiacyanine dye \u00a0\u00a0\u00a0 organized in Langmuir\u2013Blodgett films: A spectroscopic investigation<\/p>

    1. Bhattacharjee, Syed Arshad Hussain, S. Chakraborty<\/strong>, R.A. Schoonheydt<\/li><\/ol>

      Spectrochimica Acta Part A<\/em> 77(2010) 232-237<\/p>

      A B S T R A C T<\/p>

      In this paper we report the effect of the incorporation of nano-dimensional clay platelets, laponite, on the J-aggregation of a thiacyanine dye N,N -dioctadecyl thiacyanine perchlorate (NK) assembled into Langmuir\u2013Blodgett (LB) monolayers. \u2013A isotherms and atomic force microscopic studies confirm the successful incorporation of clay platelets into the Langmuir monolayer of NK. J-aggregates of NK remain present in LB films lifted at lower as well as higher surface pressures in the absence of laponite clay platelets. However, with the incorporation of clay platelets, J-aggregates are formed only in LB films lifted at higher surface pressure of 30mN\/m and totally absent in the films lifted at lower surface pressures of 10 and 15 mN\/m. This may be due to the formation of nano-trapping level by overlapping of clay platelets at higher surface pressure. NK molecules may get squeezed to these nano-trapping to form J-aggregates.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t

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      \"\"(10) Investigations of RhB Langmuir monolayer by Fluorescence Imaging Microscopy<\/p>

      1. A. Hussain, S. Chakraborty<\/strong> and D. Bhattacharjee<\/li><\/ol>

        Indian J. Phys<\/em>.<\/em> 84 (2010) 625-629.<\/p>

        Abstract :<\/p>

        This communication reports the surface pressure vs area per molecule isotherm and Fluorescence Imaging Microscopic studies of the formation of domain structure in the mixed Langmuir monolayer of RhB and Stearic acid (SA) at the air-water interface. Strong repulsive interaction between the unlike components leads to the phase separation and formation of microcrystalline domains at the air water interface of the Langmuir monolayer. These domain can be directly visualized using fluorescence imaging microscope.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t

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        \"\"(11) Polydiacetylene (PDA) Film: A unique sensing element<\/p>

        Sekhar Chakraborty<\/strong>, Sudip Suklabaidya, D. Bhattacharjee, Syed Arshad Hussain<\/p>

        Materials Today: Proceedings<\/em> 5 (2018) 2367\u20132372 (Elsevier)<\/p>

        Abstract<\/p>

        Polydiacetylene (PDA) Langmuir films consist in two structural and chromic phases: metastable, non-fluorescent blue phase and stable, auto-fluorescent red phase. They are promising material for developing sensor with their fluorescence\/colorimetric dual response. The blue PDA film when exposed to analyte of interest, shows a chromatic change to red phase, is utilised to detect sensor array. PDA molecules form a stable trilayer on maximum compression and after UV polymerization they are transferred to solid substrate.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t

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        \"\"(12) Fluorescence Resonance Energy Transfer (FRET) sensor<\/p>

        Syed Arshad Hussain, Dibyendu Dey, Sekhar Chakraborty<\/strong>, Jaba Saha, Arpan Datta Roy, Santanu Chakraborty, Pintu Debnath, D. Bhattacharjee<\/p>

        Journal of Spectroscopy and Dynamics <\/em><\/strong>2015, 5:7, 1-16. <\/strong><\/p>

        Abstract<\/strong><\/p>

        The applications of Fluorescence Resonance Energy Transfer (FRET) have expanded tremendously in the last 25 years, and the technique has become a staple technique in many biological and biophysical fields. FRET can be used as spectroscopic ruler in various areas such as structural elucidation of biological molecules and their interactions in vitro assays, in vivo monitoring in cellular research, nucleic acid analysis, signal transduction, light harvesting and metallic nanomaterial etc. Based on the mechanism of FRET a variety of novel chemical sensors and biosensors have been developed. This review highlights the recent development of sensitive and selective ratiometric FRET based sensors.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t

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        \"\"(13) Nano Dimensional Hybrid Organo-clay Langmuir-Blodgett Films<\/p>

        Syed Arshad Hussain, S. Chakraborty<\/strong> and D. Bhattacharjee<\/p>

        Current Physical Chemistry<\/em> Volume 3, Number 3, August 2013, 322-332(11)<\/p>

        Abstract:<\/p>

        Clay mineral particles are interesting nanosized building blocks due to their high aspect ratio and the chemical properties. The main interest in this nanosized building blocks results essentially from the colloidal size and the permanent structural charge of the particles. Smectites or swelling clay minerals are naturally occurring nanomaterials that can be fully delaminated to elementary clay mineral platelets in dilute aqueous dispersion. This dilute aqueous smectite suspensions are well suited to convert into functional nanofilms. The functionalization is performed by ion exchange reaction with amphiphilic molecules carrying the desired functionality, such as chirality, two photon absorption, energy transfer, optical nonlinearity and magnetism, which are due to the nature of the amphiphilic cations and to the organization of both the amphiphilic molecules and the elementary clay mineral platelets. Controlling the structure of materials at the nanometre scale is of fundamental importance for tailoring such materials properties. Langmuir Blodgett films are known for a high degree of organization of organic molecules. Fundamental research into the organization of molecules at clay mineral platelets is necessary to optimize the materials for specific applications. This paper gives an overview of organo-clay hybrid Langmuir-Blodgett nano films.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t

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        \"\"(14) Adsorption of congored in cationic Langmuir-Blodgett films: spectroscopic \u00a0\u00a0 investigations.<\/p>

        1. A. Hussain, J. Bhattacharjee, S. Chakraborty,<\/strong> D. Bhattacharjee<\/li><\/ol>

          Journal of Surface Science and Technology<\/em><\/strong> 29(2013), No. 3-4, pp. 1-13.<\/strong><\/p>

          Abstract \u2014 The present paper reports the incorporation of an anionic water soluble dye congo red (CR) in the cationic octadecylamine (ODA) Langmuir-Blodgett (LB) films. ATR-FTIR spectroscopy confirms the presence of CR molecules in the adsorbed LB films. The adsorption kinetics of the CR molecules onto ODA LB films have been demonstrated by UV-Vis absorption spectroscopy. Comparison of fitted curve of the reaction kinetics to that of the observed one reveals that the reaction kinetics between CR and ODA LB films is of first order kinetic process.<\/p>

          \u00a0<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<\/div>\n\t\t","protected":false},"excerpt":{"rendered":"

          Research Publications Research Publications Title: Understanding the Effect of Uniaxial Tensile Strain on the Early Stages of Sensitizationin AISI 304 Austenitic Stainless Steel Author(s): P S Chowdhury, S K Guchhait, P K Mitra, P Mukherjee, N Gayathri and M K Mitra. Journal Name: Materials Chemistry and Physics Volume: 155; Year: 2015; Page: 217-222; ISSN: 0254-0584 Abstract: In the present study,…<\/p>\n","protected":false},"author":1,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"elementor_header_footer","meta":{"footnotes":""},"class_list":["post-1809","page","type-page","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/tiaedu.org\/old_sites\/index.php\/wp-json\/wp\/v2\/pages\/1809","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/tiaedu.org\/old_sites\/index.php\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/tiaedu.org\/old_sites\/index.php\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/tiaedu.org\/old_sites\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/tiaedu.org\/old_sites\/index.php\/wp-json\/wp\/v2\/comments?post=1809"}],"version-history":[{"count":21,"href":"https:\/\/tiaedu.org\/old_sites\/index.php\/wp-json\/wp\/v2\/pages\/1809\/revisions"}],"predecessor-version":[{"id":4733,"href":"https:\/\/tiaedu.org\/old_sites\/index.php\/wp-json\/wp\/v2\/pages\/1809\/revisions\/4733"}],"wp:attachment":[{"href":"https:\/\/tiaedu.org\/old_sites\/index.php\/wp-json\/wp\/v2\/media?parent=1809"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}