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- 5Phase-Transition
- 5Photonic Materials
- 5Stimuli-Responsive Polymers
- 4N-Isopropylacrylamide
- 3Protein-Concentration
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2014
Serpe, Michael J., Islam, Molla R.
In this submission we fabricated a humidity-responsive polymer-based actuator by layering negatively charged poly(N-isopropylacrylamide)-co-acrylic acid microgels and positively charged poly(diallyldimethyl ammonium chloride) on top of a flexible plastic substrate. We show that the extent of 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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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
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
Li, Xue, Serpe, Michael J., Gao, Yongfeng
Responsive polymer-based materials (or smart materials) have found numerous uses over the years due to their ease of synthesis and various responsivities/functionalities. Of them, stimuli-responsive hydrogel particles (microgels) have generated a lot of interest, and have been used for a number...
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2016-01-01
Song, Qiao, Gao, Yongfeng, Xu, Jiang-Fei, Qin, Bo, Serpe, Michael J., Zhang, Xi
This letter describes a new method for fabricating supramolecular microgels from supramonomers. To this end, we designed and assembled supramonomers with one acrylate moiety on each end on the basis of noncovalent host–guest interactions, which could be utilized as a cross-linker. Then...
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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...