Specific and Label-Free bioFET Sensing of the Interaction Between the Electrically Neutral Small Estriol Molecule and Its Antibody in a Microliter Drop of Diluted Plasma Shubham Babbar, Vijay Garika, Soumadri Samanta, Shankar Bhattarai, Sumesh Sadhujan, et al. Advanced Electronic Materials, 2024 The sensing of small molecules is important to a variety of fields and particularly to clinical diagnostics. Estriol is an important small chemical molecule, as it is one of three markers measured during mid‐gestation for the Down syndrome. Point‐of‐care testing of estriol will increase maternal compliance for aneuploidy mid‐gestation screening. A bioFET technology is a promising point‐of‐care platform. The meta‐nano‐channel (MNC) bioFET is employed with its tunable channel configuration to optimize the coupling between the electrostatics of the estriol‐receptor interactions and the electrodynamics of the conducting readout current. Also, the MNC bioFET receptor layer is composed of anti‐estriol antibodies to address the high structural similarity of estriol to other estrogens. Despite the small size and the electrical neutrality of estriol, real‐time is demonstrated, specific, and label‐free sensing of estriol in 0.5 µL of 1:100 diluted plasma with excellent linearity, sensitivity, dynamic range extending to ten orders of magnitude in estriol concentration and limit‐of‐detection of 1 fg mL−1. Extensive control and non‐specific measurements are reported including the response to other neutral members of the estrogen family.
T-Shaped resonator for x-band applications P. Jain, A. Thourwal, S. Bansal, N. Gupta, S. Kumar, et al. IEEE MTT S International Microwave and RF Conference Imarc 2017, 2018
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Specific and Label‐Free bioFET Sensing of the Interaction Between the Electrically Neutral Small Estriol Molecule and Its Antibody in a Microliter Drop of Diluted Plasma S Babbar, V Garika, S Samanta, S Bhattarai, S Sadhujan, S Harilal, ... Advanced Electronic Materials 10 (6), 2300819 , 2024 2024 Citations: 6
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Insights into gC 3 N 4 as a chemi-resistive gas sensor for VOCs and humidity–a review of the state of the art and recent advancements P Srinivasan, S Samanta, A Krishnakumar, JBB Rayappan, K Kailasam Journal of Materials Chemistry A 9 (17), 10612-10651 , 2021 2021 Citations: 115
A true oxygen-linked heptazine based polymer for efficient hydrogen evolution VR Battula, S Kumar, DK Chauhan, S Samanta, K Kailasam Applied Catalysis B: Environmental 244, 313-319 , 2019 2019 Citations: 77
Synergistic effect of a noble metal free Ni (OH) 2 co-catalyst and a ternary ZnIn 2 S 4/gC 3 N 4 heterojunction for enhanced visible light photocatalytic hydrogen evolution LR Nagappagari, S Samanta, N Sharma, VR Battula, K Kailasam Sustainable Energy & Fuels 4 (2), 750-759 , 2020 2020 Citations: 43
A metal-free heptazine–porphyrin based porous polymeric network as an artificial leaf for carbon-free solar fuels S Kumar, VR Battula, N Sharma, S Samanta, B Rawat, K Kailasam Journal of Materials Chemistry A 10 (27), 14568-14575 , 2022 2022 Citations: 31
Solar driven photocatalytic hydrogen evolution using graphitic-carbon nitride/NSGQDs heterostructures S Samanta, VR Battula, N Sardana, K Kailasam Applied Surface Science 563, 150409 , 2021 2021 Citations: 27
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Ru quantum dots decorated graphitic carbon nitride (Ru-QDs@ g-CN) for chemi-resistive sensing of 3-methyl-1-butanol at room temperature S Samanta, P Srinivasan, JBB Rayappan, K Kailasam Sensors and Actuators B: Chemical 368, 132060 , 2022 2022 Citations: 22
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T-shaped resonator for X-band applications P Jain, A Thourwal, S Bansal, N Gupta, S Kumar, AK Singh, S Samanta, ... 2017 IEEE MTT-S International Microwave and RF Conference (IMaRC), 1-5 , 2017 2017 Citations: 17
Label-free and specific detection of active Botulinum neurotoxin in 0.5 μL drops with the meta-nano-channel field-effect biosensor I Ron, IM Bhattacharyya, S Samanta, VS Tiwari, D Greental, ... Sensors and Actuators B: Chemical 393, 134171 , 2023 2023 Citations: 13
Addressing the challenge of solution gating in biosensors based on field-effect transistors V Garika, S Babbar, S Samanta, S Harilal, A Eisenberg-Lerner, Z Rotfogel, ... Biosensors and Bioelectronics 265, 116689 , 2024 2024 Citations: 11
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Specific and Label‐Free Sensing of Prostate‐Specific Antigen (PSA) from an Ultrasmall Drop of Diluted Human Serum with the Meta‐Nano‐Channel Silicon Field‐Effect Biosensor S Samanta, IM Bhattacharyya, A Prajapati, I Ron, R Shima‐Edelstein, ... Advanced Materials Technologies 8 (14), 2202200 , 2023 2023 Citations: 9
From sensing interactions to controlling the interactions: a novel approach to obtain biological transistors for specific and label-free immunosensing S Samanta, VS Tiwari, S Sadhujan, S Harilal, A Eisenberg-Lerner, ... Nanoscale 16 (13), 6648-6661 , 2024 2024 Citations: 8
Understanding the role of soft linkers in designing hepatzine-based polymeric frameworks as heterogeneous (photo) catalyst S Kumar, VR Battula, N Sharma, S Samanta, K Kailasam Journal of colloid and interface science 588, 138-146 , 2021 2021 Citations: 8
Specific and Label‐Free bioFET Sensing of the Interaction Between the Electrically Neutral Small Estriol Molecule and Its Antibody in a Microliter Drop of Diluted Plasma S Babbar, V Garika, S Samanta, S Bhattarai, S Sadhujan, S Harilal, ... Advanced Electronic Materials 10 (6), 2300819 , 2024 2024 Citations: 6
Geo-environmental factors and the effectiveness of mulberry leaf extract in managing malaria S Pradhan, S Hore, S Roy, S Manna, P Dam, R Mondal, A Ghati, T Biswas, ... Scientific Reports 13 (1), 14808 , 2023 2023 Citations: 4
Aminophenol Molecular Capture Layer for Specific Molecular Sensing with Field-Effect Devices P Verma, Y Ben-Shahar, S Samanta, V Garika, S Babbar, S Bhattarai, ... ACS Applied Materials & Interfaces 17 (12), 19165-19174 , 2025 2025 Citations: 3
Real-time, specific, and label-free transistor-based sensing of organophosphates in liquid R Samueli, S Babbar, Y Ben-Shahar, S Samanta, S Bhattarai, S Harilal, ... Environmental Research 263, 120089 , 2024 2024 Citations: 3
Enhancement of plasmonic response by piezoelectrically deposited gold films: GP Singh et al. GP Singh, S Samanta, A Pegu, SS Yadav, U Singhal, A Venkatesan, ... Indian Journal of Physics 98 (6), 2141-2146 , 2024 2024 Citations: 2
