Investigation of enzyme reaction by surface plasmon resonance (SPR) technique

An investigation into the surface plasmon resonance (SPR) sensor surface for the detection of enzyme reaction is reported. The thin polymeric film is prepared by spin casting poly (styrene-co-maleic acid) [PSMA] on a chromium/gold-coated SPR substrate. Bovine serum albumin (BSA) is adsorbed onto thi...

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Main Authors: Wangkam T., Srikhirin T., Wanachantararak P., Baxi V., Sutapun B., Amarit R.
Format: Article
Language:English
Published: 2014
Online Access:http://www.scopus.com/inward/record.url?eid=2-s2.0-65949118063&partnerID=40&md5=7099ad4d94de40a427767b0dcc30f51d
http://cmuir.cmu.ac.th/handle/6653943832/1059
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Institution: Chiang Mai University
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spelling th-cmuir.6653943832-10592014-08-29T09:17:41Z Investigation of enzyme reaction by surface plasmon resonance (SPR) technique Wangkam T. Srikhirin T. Wanachantararak P. Baxi V. Sutapun B. Amarit R. An investigation into the surface plasmon resonance (SPR) sensor surface for the detection of enzyme reaction is reported. The thin polymeric film is prepared by spin casting poly (styrene-co-maleic acid) [PSMA] on a chromium/gold-coated SPR substrate. Bovine serum albumin (BSA) is adsorbed onto this surface with a mix of side-on and end-on orientation. The adsorbed BSA was tested against the protease where the cleavage reaction was followed by the change in the resonance angle of the SPR. The kinetic of the enzyme reaction follows the Michaelis-Menten equation where the reaction depends on the concentration of protease. The protease concentration is in the range of 2.5 μg/ml to 1.25 mg/ml. The different topology of protein surface before and after enzyme cleavage was observed by atomic force microscope (AFM). The AFM result shows uncleaved BSA on the surface even at highest protease concentrations owing to the steric hindrance of the adsorbed protease on the BSA surface. The sensor surface can be cleaned by cleaning solution and the surface can be reused, which avoids repetition of the complicated preparing of the sensor surface. © 2009 Elsevier B.V. All rights reserved. 2014-08-29T09:17:41Z 2014-08-29T09:17:41Z 2009 Article 09254005 10.1016/j.snb.2009.02.076 SABCE http://www.scopus.com/inward/record.url?eid=2-s2.0-65949118063&partnerID=40&md5=7099ad4d94de40a427767b0dcc30f51d http://cmuir.cmu.ac.th/handle/6653943832/1059 English
institution Chiang Mai University
building Chiang Mai University Library
country Thailand
collection CMU Intellectual Repository
language English
description An investigation into the surface plasmon resonance (SPR) sensor surface for the detection of enzyme reaction is reported. The thin polymeric film is prepared by spin casting poly (styrene-co-maleic acid) [PSMA] on a chromium/gold-coated SPR substrate. Bovine serum albumin (BSA) is adsorbed onto this surface with a mix of side-on and end-on orientation. The adsorbed BSA was tested against the protease where the cleavage reaction was followed by the change in the resonance angle of the SPR. The kinetic of the enzyme reaction follows the Michaelis-Menten equation where the reaction depends on the concentration of protease. The protease concentration is in the range of 2.5 μg/ml to 1.25 mg/ml. The different topology of protein surface before and after enzyme cleavage was observed by atomic force microscope (AFM). The AFM result shows uncleaved BSA on the surface even at highest protease concentrations owing to the steric hindrance of the adsorbed protease on the BSA surface. The sensor surface can be cleaned by cleaning solution and the surface can be reused, which avoids repetition of the complicated preparing of the sensor surface. © 2009 Elsevier B.V. All rights reserved.
format Article
author Wangkam T.
Srikhirin T.
Wanachantararak P.
Baxi V.
Sutapun B.
Amarit R.
spellingShingle Wangkam T.
Srikhirin T.
Wanachantararak P.
Baxi V.
Sutapun B.
Amarit R.
Investigation of enzyme reaction by surface plasmon resonance (SPR) technique
author_facet Wangkam T.
Srikhirin T.
Wanachantararak P.
Baxi V.
Sutapun B.
Amarit R.
author_sort Wangkam T.
title Investigation of enzyme reaction by surface plasmon resonance (SPR) technique
title_short Investigation of enzyme reaction by surface plasmon resonance (SPR) technique
title_full Investigation of enzyme reaction by surface plasmon resonance (SPR) technique
title_fullStr Investigation of enzyme reaction by surface plasmon resonance (SPR) technique
title_full_unstemmed Investigation of enzyme reaction by surface plasmon resonance (SPR) technique
title_sort investigation of enzyme reaction by surface plasmon resonance (spr) technique
publishDate 2014
url http://www.scopus.com/inward/record.url?eid=2-s2.0-65949118063&partnerID=40&md5=7099ad4d94de40a427767b0dcc30f51d
http://cmuir.cmu.ac.th/handle/6653943832/1059
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