soil Quality Monitoring

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

  • Geo-tagged Data

a) Integrated System b) Multiplexed PDMS Channel in Use

Related Publications & Patents

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)

Journal Publications

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.

Conference Publications

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