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Reference type: Journal
Authors: Osman B, Uzun L, Besirli N, Denizli A
Article Title: Microcontact imprinted surface plasmon resonance sensor for myoglobin detection.
Publication date: 2013
Journal: Materials Science and Engineering: C
Volume: 33
Issue: (7)
Page numbers: 3609-3614.
DOI: 10.1016/j.msec.2013.04.041
Alternative URL: http://www.nanomagnetics-inst.com/usrfiles/files/Articles/Ambient-AFM-MFM/AFM30.pdf

Abstract: In this study, we prepared surface plasmon resonance (SPR) sensor using the molecular imprinting technique for myoglobin detection in human serum. For this purpose, we synthesized myoglobin imprinted poly(hydroxyethyl methacrylate-N-methacryloyl-l-tryptophan methyl ester) [poly(HEMA-MATrp)] nanofilm on the surface of SPR sensor. We also synthesized non-imprinted poly(HEMA-MATrp) nanofilm without myoglobin for the control experiments. The SPR sensor was characterized with contact angle measurements, atomic force microscopy, X-ray photoelectron spectroscopy, and ellipsometry. We investigated the effectiveness of the sensor using the SPR system. We evaluated the ability of SPR sensor to sense myoglobin with myoglobin solutions (pH 7.4, phosphate buffer) in different concentration range and in the serum taken from a patient with acute myocardial infarction. We found that the Langmuir adsorption model was the most suitable for the sensor system. The detection limit was 87.6 ng/mL. In order to show the selectivity of the SPR sensor, we investigated the competitive detection of myoglobin, lysozyme, cytochrome c and bovine serum albumin. The results showed that the SPR sensor has high selectivity and sensitivity for myoglobin
Template and target information: protein, myoglobin
Author keywords: molecularly imprinted polymer, Microcontact imprinting, SPR sensor, myoglobin, Nanofilm


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