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2015
Guo, Siyuan, Zhang, Qiang M., Serpe, Michael J., Wei, Menglian, Gao, Yongfeng
A device constructed by sandwiching a thin film of poly(N-isopropylacrylamide)-co-acrylic acid (pNIPAmco-AAc) microgels between two thin layers of Au (all on a glass support) was used as a novel platform for controlled release of small molecules (drugs). In this submission, the model drug tris...
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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
Klassen, John S., Yao, Yuyu, Serpe, Michael J., Xu, Wenwen
Anisotropic particles have generated an enormous amount of research interest due to their applications for drug delivery, electronic displays and as micromotors. However, up till now, there is no single protocol capable of generating particles of “patchy” composition with a variety of...
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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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2017-01-01
Li, Xue, Cai, Xiangbin, Gao, Yongfeng, Serpe, Michael J.
Temperature and pH responsive semi-interpenetrating network (semi-IPN) hydrogel-based bilayer actuators were fabricated by generating a poly(N-isopropylacrylamide) (pNIPAm)-based hydrogel in the presence of positively charged polyelectrolyte poly(diallyldimethylammonium chloride) (pDADMAC) on a...
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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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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...