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The current research in the group is focused on the development of flexible sensors for environmental monitoring and healthcare. In ambient environment, a tiny fluctuation in humidity, pressure, or temperature can cause significant variation in chemical environment and affect the sensor’s response. The selectivity amongst VOCs/gases is also important to avoid any cross talks and false signals. For designing a real life sensor, engineered materials are required for multi-component detection at near ambient conditions of temperature and humidity. We are working on design and synthesis of surface functionalized organic-inorganic hybrid 2D nanomaterials for efficient VOC/gas detection. The challenge lies in the translation of these sensing materials in the form of a stand-alone device operating in a multi-variate environment combined with statistical analysis approach. 

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Team Members at IIT Jodhpur:

 Mohit Verma, Snehraj Gaur, Dr. Sukhwinder Singh and Vansh Bhutani

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The project is funded by: SERB, Core Research Grant-2020 

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Key Publications

1. SnO2-rGO Hybrids for Highly Selective and Sensitive NO2 Sensor Fabricated using Component Combinatorial Approach, Verma, M.; Bahuguna, G.; Shukla S. and Ritu Gupta.* ACS Applied Nanomaterials 2022.  5, 12, 19053–19061.

2. Nickel Cobaltite Nanoplates based Electrochemical Sensing Platform from Printable Inks for Simultaneous Detection of Dopamine and Uric Acid, Urgunde, A. B., Dhamija, A., and Ritu Gupta* Chemistry - An Asian Journal, 2021, DOI: 10.1002/asia.202101166

3. An Innovative Approach to Photo-Chemiresistive Sensing Technology: Surface Fluorinated SnO2 for VOCs Detection Bahuguna, G., Mondal, I., Verma, M., Kumar, M., Bhattacharya, S., Ritu Gupta* Giridhar U. Kulkarni ACS Applied Materials Interfaces 2020, DOI: 10.1021/acsami.0c08847, in press (IF=8.7)

4. Ultrasensitive Organic Humidity Sensor with High Specificity for Human Physiological Monitoring Bahuguna,G., Adhikary,V., Sharma, R. K.,Gupta,R. * Electroanalysis, 32, 76-85, 2019. (IF=2.8)

5. Metal Wire Networks functionalized with Ni Alkanethiolate for Transparent and Enzymeless Glucose Sensors Urgunde, A. B., Kumar, A., Shejale, K. P., Sharma, R. K., & Ritu Gupta* ACS Applied Nano Materials, 1, 5571–5580, 2018 ​

6. Cosmetically Adaptable Transparent Strain Sensor for Sensitively Delineating Patterns in Small Movements of Vital Human Organs Gupta, N., Rao, K. D. M., Srivastava, K., Ritu Gupta, Kumar, A., Marconnet, A. M., Fisher, T. S., & Kulkarni, G. U.*  ACS Applied Materials & Interfaces, 10, 44126, 2018.