Label-free detection of single protein markers (molecules) of diseases, present in bodily fluids at ultra-low concentration is one of the primary interests of researchers working in the field of Biosensing. By early-stage detection of protein markers, many severe diseases can be cured. Nanoplasmonic-whispering gallery mode (WGM) hybrid microresonators work as highly efficient biosensing device which can be used to detect single protein molecules in real-time. In the hybrid microresonator, nanoplasmonic particles are used with the bare WGM microresonator. Here, we report (i) theoretical response of the nanoplasmonic-WGM hybrid microresonator in terms of frequency shift (reactive shift) using different nanoplasmonic particles, (ii) a comparative study of the responses of bare WGM and nanoplasmonic-WGM hybrid microresonators and (iii) experimental setups for detection of single protein molecules in real-time, present in our laboratory.
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4 May 2020
3RD INTERNATIONAL CONFERENCE ON CONDENSED MATTER AND APPLIED PHYSICS (ICC-2019)
14–15 October 2019
Bikaner, India
Research Article|
May 04 2020
Effect of different plasmonic nanoparticles on the reactive shift of nanoplasmonic-whispering gallery mode hybrid microresonator
Pragya Tiwari;
Pragya Tiwari
a)
Department of Physics, Indian Institute of Technology Patna
, Bihta, Patna - 801103, India
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Venkata Ramanaiah Dantham
Venkata Ramanaiah Dantham
b)
Department of Physics, Indian Institute of Technology Patna
, Bihta, Patna - 801103, India
b)Corresponding author: dantham@iitp.ac.in
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b)Corresponding author: dantham@iitp.ac.in
AIP Conf. Proc. 2220, 050018 (2020)
Citation
Pragya Tiwari, Venkata Ramanaiah Dantham; Effect of different plasmonic nanoparticles on the reactive shift of nanoplasmonic-whispering gallery mode hybrid microresonator. AIP Conf. Proc. 4 May 2020; 2220 (1): 050018. https://doi.org/10.1063/5.0001703
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