Results 151 to 160 of about 2,523 (182)

Dextran-grafted-PNIPAAm as an artificial chaperone for protein refolding

Biochemical Engineering Journal, 2006
A temperature stimuli-responsive polymer, dextran-grafted-PNIPAAm (DGP), was prepared by radical polymerization using cerium nitrate as the initiator. The structure and the grafting ratio of DGP were determined by FT-IR and elemental analysis. The temperature-stimuli responsive behavior of DGP and the size of the DGP self-assemblies at different ...
Diannan Lu, Zhixia Liu, Minlian Zhang, Xiaogong Wang, Zheng Liu   +4 more
openaire   +1 more source

Novel ABA type gold copolymer nanoparticles: PNIPAAm-b-PU-b-PNIPAAm tri-block nanopolymer as reducing and stabilizing agent

AIP Conference Proceedings, 2012
Block copolymers have been used extensively in the synthesis of different types of nanoparticles. A novel ABA type tri-block nanopolymer PNIPAAm-b-PU-b-PNIPAAm has been synthesized via atom transfer radical polymerization (ATRP) technique, using a tertiary bromo-terminated as a macroinitiator.
Prashant Singh, Hemant Verma, Chaitnaya Kumar, Kamlesh Kumari, Gopal K. Mehrotra, Ramesh Chandra, K. Tharanikkarrasu   +6 more
openaire   +1 more source

The mechanism of PNIPAAm-assisted refolding of lysozyme denatured by urea

Biochemical Engineering Journal, 2005
Abstract The molecular interaction of a temperature stimuli-responsive polymer, poly-N-isopropyl acrylamide (PNIPAAm), with lysozyme of different status was studied with an emphasis on the application of PNIPAAm for protein refolding. The refolding of lysozyme was performed by directly diluting denatured lysozyme into a refolding buffer containing ...
Diannan Lu, Zhixia Liu, Minlian Zhang, Zheng Liu, Haimeng Zhou   +4 more
openaire   +1 more source

Novel Biodegradable and Thermosensitive Dex‐AI/PNIPAAm Hydrogel

Macromolecular Bioscience, 2003
AbstractThe dextran‐allyl isocyanate/poly(N‐isopropylacrylamide) (Dex‐AI/PNIPAAm) hydrogel was designed and prepared by copolymerization of the modified dextran with N‐isopropylacrylamide (NIPAAm). This novel Dex‐AI/PNIPAAm hydrogel is biodegradable and intelligent due to its biodegradable dextran linkage and thermosensitive PNIPAAm moiety.
Xian‐Zheng Zhang, Da‐Qing Wu, Guo‐Ming Sun, Chih‐Chang Chu   +3 more
openaire   +1 more source

Synthesis and Characterization of TZD Loaded PNIPAAm-b-PU-b-PNIPAAm Tri-Block Gold Nanopolymer

International Journal of Green Nanotechnology, 2012
ABSTRACT Block copolymers have been used extensively in the synthesis of different types of nanoparticles. A novel ABA type PNIPAAm-b-PU-b-PNIPAAm tri-block nanopolymer has been synthesized via atom transfer radical polymerization (ATRP) technique using a tertiary bromo-terminated as a macro-initiator and was characterized by nuclear magnetic resonance
Prashant Singh, Kamlesh Kumari, Gopal K. Mehrotra, Ramesh Chandra   +3 more
openaire   +1 more source

Temperature-Sensitive Nanogels PNIPAAm/DMA Prepared and Research

Advanced Materials Research, 2012
There have much study about thermo-responsive nanogels,which exhibit temperature-controlled volume phase transitions.There have been few reports,however,of electrostatically neutral,thermosensitive nanogels with a high composition of hydrophilic monomer.Here,we describe the synthesis and characterization of a new class of nonionic copolymer nanogels ...
Hai Yan Wang, Qian Liao, Qiao Lan Shao, Gao Qiu, Xi Hua Lu   +4 more
openaire   +1 more source

Strategies to improve the response rate of thermosensitive PNIPAAm hydrogels

Soft Matter, 2008
Poly(N-isopropylacrylamide) (PNIPAAm) hydrogel is one of the most extensively studied thermosensitive hydrogels, it displays a lower critical solution temperature (LCST) at around 33 °C in aqueous solution and undergoes an abrupt thermoreversible change in volume as the external temperature cycles around this critical temperature.
Xian-Zheng Zhang, Xiao-Ding Xu, Si-Xue Cheng, Ren-Xi Zhuo   +3 more
openaire   +1 more source

PNIPAAM Immobilized Nanoparticles for Posterior Ocular Delivery

2020
Master of Applied Science (MASc)
openaire   +1 more source

Projection micro-stereolithography of temperature responsive PNIPAAm hydrogel

2017
Poly(N-isopropylacrylamide) (PNIPAAm) is one of the most popular temperature responsive hydrogel which is widely used in many research fields. However, the application of PNIPAAm is significantly limited because of lack of suitable three-dimensional (3D) fabrication method.
openaire   +1 more source

Chemistry-Induced Effects on Cell Behavior upon Plasma Treatment of pNIPAAM

Polymers, 2022
Bogdana Mitu, Valentina Dinca, Mihaela Bacalum   +2 more
exaly