naa a22 4500 510817599 CHVBK 20180411083515.0 cr unu---uuuuu 180411e20130601xx s 000 0 eng 10.1007/s11468-012-9415-8 doi (NATIONALLICENCE)springer-10.1007/s11468-012-9415-8 A New Route to Glucose Sensing Based on Surface Plasmon Resonance Using Polyindole [Elektronische Daten] [Lalit Kumar, Rekha Gupta, Dhruv Thakar, Vaibhav Vibhu, S. Annapoorni] In the present study, we report the first polyindole-modified metal (Au) as a glucose sensor utilizing surface plasmon resonance (SPR) technique. Polyindole (PIn) was deposited by spin coating to modify the surface of the gold disk. Sensor surface was prepared by immobilizing glucose oxidase on the polyindole-modified gold disk. Different concentrations of glucose were taken to analyze the sensor response. A change in refractive index of the film was observed due to the chemical reactions of glucose with glucose oxidase. The response of the sensor is fast and highly sensitive to low concentrations of glucose and the sensitivity increases in the range of 0.075-0.5μM. The use of Au/polyindole (PIn/Au) substrates for SPR-based study of bio-molecular sensing has been demonstrated. Springer Science+Business Media, LLC, 2012 SPR nationallicence Polyindole nationallicence Immobilization nationallicence GOD nationallicence Glucose nationallicence Sensing nationallicence Kumar Lalit Department of Physics and Astrophysics, University of Delhi, 110007, Delhi, India aut Gupta Rekha Department of Physics and Astrophysics, University of Delhi, 110007, Delhi, India aut Thakar Dhruv Department of Physics and Astrophysics, University of Delhi, 110007, Delhi, India aut Vibhu Vaibhav Department of Physics and Astrophysics, University of Delhi, 110007, Delhi, India aut Annapoorni S. Department of Physics and Astrophysics, University of Delhi, 110007, Delhi, India aut Plasmonics Springer US; http://www.springer-ny.com 8/2(2013-06-01), 487-494 1557-1955 8:2<487 2013 8 11468 https://doi.org/10.1007/s11468-012-9415-8 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s11468-012-9415-8 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Kumar Lalit Department of Physics and Astrophysics, University of Delhi, 110007, Delhi, India aut NATIONALLICENCE 700 1- Gupta Rekha Department of Physics and Astrophysics, University of Delhi, 110007, Delhi, India aut NATIONALLICENCE 700 1- Thakar Dhruv Department of Physics and Astrophysics, University of Delhi, 110007, Delhi, India aut NATIONALLICENCE 700 1- Vibhu Vaibhav Department of Physics and Astrophysics, University of Delhi, 110007, Delhi, India aut NATIONALLICENCE 700 1- Annapoorni S. Department of Physics and Astrophysics, University of Delhi, 110007, Delhi, India aut NATIONALLICENCE 773 0- Plasmonics Springer US; http://www.springer-ny.com 8/2(2013-06-01), 487-494 1557-1955 8:2<487 2013 8 11468 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer