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- 3Stimuli-Responsive Polymers
- 2Photonic Materials
- 1Adsorption
- 1Analytical Applications Of Stimuli-Responsive Polymers
- 1Biosensing
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Isolation of RNA from a mixture and its detection by utilizing a microgel-based optical device
Download2018-01-01
Islam, Molla R., Azimi, Shakiba, Teimoory, Faranak, Loppnow, Glen R., Serpe, Michael J.
In this investigation, we show that RNA can be separated from a solution containing DNA and RNA and the isolated RNA can be detected using poly (N-isopropylacrylamide-co-N-(3-aminopropyl) methacrylamide hydrochloride) microgel-based optical devices (etalons). The isolation of RNA was accomplished...
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Penetration of polyelectrolytes into charged poly (N-isopropylacrylamide) microgel layers confined between two surfaces
Download2013-01-01
Islam, Molla R., Serpe, Michael J.
pH and temperature sensitive poly(N-isopropylacrylamide) (pNIPAm) microgel-based etalons were fabricated by sandwiching a “monolithic” microgel layer between two semitransparent, 15 nm Au layers. The devices exhibit visual color and multipeak reflectance spectra, both of which primarily depend on...
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Polymer-based devices for the label-free detection of DNA in solution: low DNA concentrations yield large signals
Download2014-01-01
Islam, Molla R., Serpe, Michael J.
Poly (N-isopropylacrylamide-co-N-(3-aminopropyl) methacrylamide hydrochloride) microgel-based optical devices (etalons) have been shown to change their optical properties in the presence of single-stranded DNA. We hypothesize that this is due to the negatively charged DNA penetrating through the...
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Reductant responsive poly (N-isopropylacrylamide) microgels and microgel-based optical materials
Download2015-01-01
Li, Xue, Gao, Yongfeng, Serpe, Michael J.
Poly(N-isopropylacrylamide) based hydrogel particles (microgels) crosslinked with N,N′-bis(acryloyl)cystamine were prepared using free-radical precipitation polymerization. By coating a single layer of microgels on a gold-coated glass substrate followed by the addition of another gold layer, an...
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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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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...