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Skip to Search Results- 7Biosensing
- 3Microgel-Based Etalon
- 3Sensing
- 2Photonic Materials
- 2Stimuli Responsive Polymers
- 1Analytical Applications Of Stimuli-Responsive Polymers
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2013-01-01
Gao, Yongfeng, Zago, Gustavo P., Jia, Zhanghu, Serpe, Michael J.
A device composed of a poly (N-isopropylacrylamide)-co-acrylic acid (pNIPAm-co-AAc) microgel layer sandwiched between two thin Au layers (all on a glass support) was used as a novel platform for controlled and triggered small molecule delivery. Tris (4-(dimethylamino)phenyl)methylium chloride...
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Spring 2013
Electrografting permits bonding of an organic film to a conductive substrate. It is therefore important to control the formation of organic films as best as possible and to understand the linkage between the organic film and the substrate as best as possible. This work explores electrografting of...
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Enzyme-assisted polymer film degradation-enabled biomolecule sensing with poly (N-isopropylacrylamide)-based optical devices
Download2018-01-01
Zhang, Wei, Wei, Menglian, Carvalho, Wildemar S. P., Serpe, Michael J.
A biosensor for mouse Immunoglobulin G (IgG) was generated from responsive polymer-based interference filters (etalons). To accomplish this, an excess amount of alkaline phosphatase-modified goat anti-mouse IgG (AP-GAM, F(ab’)2 fragment specific to mouse IgG) was added to mouse IgG, and allowed...
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Fabrication and testing of surface-enhanced Raman spectroscopy substrates for the detection of biomolecules
DownloadSpring 2014
Biosensing involves the detection of analytes using biological elements as receptor agents for the specific binding of molecules to a surface. Surface-enhanced Raman spectroscopy (SERS), a surface-sensitive vibrational spectroscopy technique used to amplify Raman signals, provides unique...
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Label-free detection of low protein concentration in solution using a novel colorimetric assay
Download2013-01-01
Islam, Molla R., Serpe, Michael J.
Dual pH and temperature sensitive microgel-based etalons were fabricated by sandwiching a “monolithic” microgel layer between two semitransparent, Au layers. The devices exhibit visual color and multipeak reflectance spectra, both of which primarily depend on the distance between the Au surfaces...
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2014-01-01
Gao, Yongfeng, Serpe, Michael J.
Poly(N-isopropylacrylamide) (pNIPAm) microgel-based etalons were used to fabricate systems that change visual color in response to light exposure. These systems were fabricated by adding pH responsive microgel-based etalons to a solution composed of the photoacid o-nitrobenzaldehyde (o-NBA). Upon...
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Morphology control and localized surface plasmon resonance in glancing angle deposited films
DownloadFall 2010
This research investigates an extension of the glancing angle deposition (GLAD) technique and a biosensing application of films produced by GLAD. The extension to GLAD, called phi-sweep (PS), improves column isolation compared to films grown by traditional GLAD (TG) as well as modifies the column...
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2013-01-01
Islam, Molla R., Lu, Zhenzhen, Li, Xue, Sarker, Avijeet K., Hu, Liang, Choi, Paul, Li, Xi, Hakobyan, Narek, Serpe, Michael J.
Stimuli-responsive polymers are capable of translating changes in their local environment to changes in their chemical and/or physical properties. This ability allows stimuli-responsive polymers to be used for a wide range of applications. In this review, we highlight the analytical applications...
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Spring 2018
Small-molecule metabolites (MW < 1,000 Da) are now emerging as an important type of biomarkers, thanks to the rapid development of systems biology such as metabolomics. Compared to nucleic acids and protein, metabolite is closer to the phenotype. Rapid detection and quantification of metabolites...
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The influence of deposition solution pH and ionic strength on the quality of poly (N-isopropylacrylamide) microgel-based thin films and etalons
Download2013-01-01
Poly(N-isopropylacrylamide)-co-acrylic acid (pNIPAm-co-AAc) microgel-based thin films and etalons were fabricated via “painting” a pNIPAm-co-AAc microgel monolayer on a Au-coated substrate, followed by the deposition of another Au overlayer. Herein, in situ observation of how the pH and ionic...