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Skip to Search Results- 13Etalons
- 10Photonic Materials
- 5Stimuli-Responsive Polymers
- 4Stimuli Responsive Polymers
- 3Optical Sensing
- 3Phase-Transition
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2016
Li, Xue, Serpe, Michael J., Gao, Yongfeng
Poly (N-isopropylacrylamide) (pNIPAm)-based hydrogels and hydrogel particles (microgels) have been extensively studied since their discovery a number of decades ago. While their utility seems to have no limit, this feature article is focused on their development and application for sensing small...
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2015
Berg, Darren, Mugo, Samuel M., Zhang, Qiang M., Serpe, Michael J.
Lipase-modified pH-responsive poly(N-isopropylacrylamide)-based microgels were synthesized. An optical device was subsequently fabricated by sandwiching the enzyme loaded responsive microgels between two thin Au layers, and their response to triolein, a model triglyceride, was investigated. The...
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2015-01-01
Li, Xue, Gao, Yongfeng, Serpe, Michael J.
Poly (N‐isopropylacrylamide) (pNIPAm)‐based hydrogels and hydrogel particles (microgels) have been extensively studied since their discovery and “popularization” a few decades ago. While their uses seem to have no bounds, this Feature Article is focused on their development and application for...
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2012
Photonic materials (PMs) that are capable of manipulating and controlling light in systems have immense potential for the computing and communications industries. These materials are formed by assembling components of differing refractive indices in a periodic array. Light then interacts with...
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Poly (N-isopropylacrylamide) microgel-based etalons for the label-free quantitation of estradiol-17β in aqueous solutions and milk samples
Download2018-01-01
Jiang, Yaxin, Colazo, Marcos G., Serpe, Michael J.
A novel estradiol-17β (E2) biosensor was constructed from poly(N-isopropylacrylamide) (pNIPAm) microgel-based etalons by modification of their outermost Au layer with an E2 binding 75-mer DNA aptamer. When E2 is not present in the solution, the aptamer forms a loose/linear structure that allows...
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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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Sequential and controlled release of small molecules from poly(N-isopropylacrylamide) microgel-based reservoir devices
Download2016
Serpe, Michael J., Wong, Ka Y., Ahiabu, Andrews, Gao, Yongfeng
Systems composed of a poly(N-isopropylacrylamide)-co-acrylic acid (pNIPAm-co-AAc) microgels (AAc-MG) and poly(N-isopropylacrylamide-3-(acrylamido)phenylboronic acid) (pNIPAm-co-APBA) microgels (APBA-MG) were used to sequentially release small molecules to a system in a controlled and triggered...
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2016-01-01
Jiang, Yaxin, Colazo, Marcos G., Serpe, Michael J.
Progesterone (P4) is a vital steroid hormone involved in the reproduction cycle and necessary for maintenance of pregnancy in humans and animals. Monitoring P4 concentrations is required in various fields, such as dairy industry, environmental protection, and clinical laboratories. The current...
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2015-01-01
Islam, Molla R., Xie, Shuyi, Huang, Danqing, Smyth, Keady, Serpe, Michael J.
Optical sensors for environmental humidity have been constructed from poly (N-isopropylacrylamide)-co-acrylic acid (pNIPAm-co-AAc) microgels. The devices were constructed by first depositing a monolithic layer of pNIPAm-co-AAc microgels on a Au-coated glass substrate followed by the addition of...
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2014
Ahiabu, Andrews, Islam, Molla R., Li, Xue, Serpe, Michael J.
Responsive polymer-based materials have found numerous applications due to their ease of synthesis and the variety of stimuli that they can be made responsive to. In this review, we highlight the group’s efforts utilizing thermoresponsive poly (N-isopropylacrylamide) (pNIPAm) microgel-based...