Applications: Soil and Water Quality Assessment, Pathological Analysis
IoT Enabled Microfluidic Colorimetric Detection Platform for Continuous Monitoring of Soil Parameters
A Standalone, Point-of-Source, Portable, Low-Cost, Automated & Integrated Microfluidic System for Detection & Quantification of Nitrite
Employs controlled Griess reaction based assay
Low-cost 3D printed syringe pump
Photometric detection employed using LED & photodiode
LOD: 0.07103 ppm; LOQ: 0.21524 ppm (WHO limits: 3 ppm)
Integrated Platform for Soil Nutrient Testing
Integrated Nitrite, pH and Electrical Conductivity Detection
Uses a multiplexed Polydimethylsiloxane (PDMS) device
Conductivity cell with copper electrodes
Smartphone application for system control
a) Integrated System b) Multiplexed PDMS Channel in Use
Related Publications & Patents
1. Microfluidics Based Integrated Based Integrated System for Nitrite and Nitrate Detection and Analysis
Inventors: Sohan Dudala, Satish K Dubey and Sanket Goel
Status: Indian Patent Filed (201911004347, February-2019)
2. A Portable Real-Time Colorimetric Detection Device And Method Of Using The Same
Inventors: Abhishesh Pal, Madhusudan B Kulkarni, Satish Kumar Dubey, Ponnalagu R N, Sanket Goel
Status: Indian Patent Filed (202111015698, Apr-21)
5. Abhishesh Pal, Satish Kumar Dubey and Sanket Goel, IoT Enabled Microfluidic Colorimetric Detection Platform for Continuous Monitoring of Nitrite and Phosphate in Soil, Computers and Electronics in Agriculture, vol. 195, #106856, 2022.
4. Abhishesh Pal, Madhusudan B Kulkarni, Harish Gupta, R. N. Ponnalagu, Satish Kumar Dubey and Sanket Goel, Portable and Autonomous Device for Real-time Colorimetric Detection: Validation for Phosphorous and Nitrite Detection, Sensors and Actuators: A. Physical, vol. 330, #112896, 2021.
3. Abhishesh Pal, Khairunnisa Amreen, Satish Kumar Dubey and Sanket Goel, Highly Sensitive and Interference-free Electrochemical Nitrite Detection in a 3D Printed Miniaturized Device, IEEE Transactions on NanoBioscience, vol. 20(2), 175-182, 2021.
2. S. Dudala, L. T. Rao, S. K. Dubey, A. Javed, and S. Goel, “Experimental characterization to fabricate CO2 laser ablated PMMA microchannel with homogeneous surface,” Mater. Today Proc., Jan. 2020, doi: 10.1016/j.matpr.2019.12.302.
1. S. Dudala, S. K. Dubey, and S. Goel, “Fully Integrated, Automated, and Smartphone Enabled Point-of-Source Portable Platform With Microfluidic Device for Nitrite Detection,” IEEE Trans. Biomed. Circuits Syst., vol. 13, no. 6, pp. 1518–1524, Dec. 2019, doi: 10.1109/TBCAS.2019.2939658.
2. Abhishesh Pal, Satish Kumar Dubey and Sanket Goel, Gold Nanoparticles Assisted Single Step Sensing of Cobalt with Flexible Carbon Cloth, 2021 IEEE 15th International Conference on Nano/Molecular Medicine & Engineering (NANOMED), pp. 38-42, 2021.
1. Dudala, S; Puneeth, S.B.; Dubey, S.K. & Goel, S, “Design of Colorimetric Lab-On-Chip Platform for Detection of Nitrite in Water”, Proceedings of Photonics-2018: International Conference on Fiber Optics and Photonics (IIT Delhi), December 12-15, 2015, SP077, ISBN 978-93-88653-41-1