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Divya Thomas

Cochin University of Science and Technology

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Publication

Featured researches published by Divya Thomas.

Journal of Fluorescence | 2013

Quantum Dots (QDs) Based Fluorescent Sensor for the Selective Determination of Nimesulide

Divya Thomas; Laina Lonappan; Leena Rajith; Soumya T. Cyriac; Krishnapillai Girish Kumar

Fluorescent PET (Photoinduced Electron Transfer) has been of particular growth in recent times. A novel PET based fluorescent sensor using unmodified CdSe quantum dots (QDs) has been developed for the trace determination of Nimesulide (NIM). The sensor is based on the selective fluorescence quenching of quantum dots by NIM in presence of other NSAIDs and is found that intensity of quenching is linearly related to NIM concentration in the range 8.2 × 10−7 – 4.01 × 10−5 M. The mechanism of interaction is discussed. Finally, the potential application of the proposed method for the trace determination of NIM in pharmaceutical formulation is demonstrated.

Food Analytical Methods | 2014

Development of an Electrochemical Sensor for the Determination of Amaranth: a Synthetic Dye in Soft Drinks

Sreejith Chandran; Laina Lonappan; Divya Thomas; Theresa Jos; Krishnapillai Girish Kumar

Food Analytical Methods | 2015

Voltammetric Sensor for the Determination of TBHQ in Coconut Oil

Ambily Thomas; Anuja Elevathoor Vikraman; Divya Thomas; Krishnapillai Girish Kumar

Food Analytical Methods | 2012

Sensitive determination of nitrite in food samples using voltammetric techniques

Divya Thomas; Leena Rajith; Laina Lonappan; Sindhu Issac; Krishnapillai Girish Kumar

Food Analytical Methods | 2015

Carbon-Nanotube-Based Sensor for the Determination of Butylated Hydroxyanisole in Food Samples

Zafna Rasheed; Anuja Elevathoor Vikraman; Divya Thomas; Jesny Siri Jagan; Krishnapillai Girish Kumar

Micro & Nano Letters | 2011

Electrochemical studies of tamsulosin hydrochloride using multiwalled carbon nanotube-modified glassy carbon sensor

Laina Lonappan; Sindhu Issac; Renjini Joseph; Divya Thomas; K. Girish Kumar

Lwt - Food Science and Technology | 2015

Kinetic approach in the development of a gold nanoparticle based voltammetric sensor for Sudan I

Divya Thomas; Anuja Elevathoor Vikraman; Theresa Jos; Krishnapillai Girish Kumar

Journal of The Electrochemical Society | 2014

Kinetic and Thermodynamic Approach in the Development of a Voltammetric Sensor for Sunset Yellow

Anuja Elevathoor Vikraman; Divya Thomas; Soumya T. Cyriac; Krishnapillai Girish Kumar

Journal of The Electrochemical Society | 2016

Electrochemical Sensor for Propyl Gallate, Based on Synergic Effect of Gold Nanoparticle and Poly(p-aminobenzenesulfonic Acid)

Soumya T. Cyriac; Divya Thomas; Anuja Elevathoor Vikraman; Krishnapillai Girish Kumar

Food Analytical Methods | 2016

Nanomolar Level Determination of Octyl Gallate in Fats and Oils

Unni Sivasankaran; Anuja Elevathoor Vikraman; Divya Thomas; Krishnapillai Girish Kumar

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Krishnapillai Girish Kumar

Cochin University of Science and Technology

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Anuja Elevathoor Vikraman

Cochin University of Science and Technology

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Laina Lonappan

Cochin University of Science and Technology

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Soumya T. Cyriac

Cochin University of Science and Technology

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Jesny Siri Jagan

Cochin University of Science and Technology

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Leena Rajith

Cochin University of Science and Technology

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Sindhu Issac

Cochin University of Science and Technology

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Theresa Jos

Cochin University of Science and Technology

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Zafna Rasheed

Cochin University of Science and Technology

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Ambily Thomas

Cochin University of Science and Technology

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