Results 181 to 190 of about 6,865 (206)

Novel renewable immunosensors based on temperature-sensitive PNIPAAm bioconjugates

Biosensors and Bioelectronics, 2008
A novel renewable immunosensor was created comprising a temperature-controlled surface composed of poly(n-isopropylacrylamide) (PNIPAAm)-antibody conjugates that could reversibly bind the antigen. Bovine serum albumin (BSA) and the corresponding antibody (anti-BSA) were chosen as a model antibody-antigen system to demonstrate the concept. The thermally
Ying, Liu, Sheng, Meng, Li, Mu, Guiying, Jin, Wei, Zhong, Jilie, Kong   +5 more
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Thermosensitive PNIPAAm cryogel with superfast and stable oscillatory properties

Chemical Communications, 2003
Through copolymerization/crosslinking in dimethyl sulfoxide (DMSO) at temperature below the melting point of DMSO, we demonstrated a novel poly(N-isopropylacrylamide) (PNIPAAm) hydrogel with regularly oriented micromatrix; the superfast/stable oscillatory hydration-dehydration character of this hydrogel would find wide applications in biomedical field.
Xian-Zheng, Zhang, Chih-Chang, Chu
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Salt Sensitivity of the Thermoresponsive Behavior of PNIPAAm Brushes

Langmuir, 2018
We report investigations on the salt sensitivity of the thermoresponsive behavior of PNIPAAm brushes applying the quartz crystal microbalance coupled with spectroscopic ellipsometry technique. This approach enables a detailed study of the optical and mechanical behavior of the polymer coatings.
Meike Koenig, Keith Brian Rodenhausen, Sebastian Rauch, Eva Bittrich, Klaus-Jochen Eichhorn, Mathias Schubert, Manfred Stamm, Petra Uhlmann   +7 more
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Characterization and cell material interactions of PEGylated PNIPAAM nanoparticles

Colloids and Surfaces B: Biointerfaces, 2010
The aim of this study was to investigate the haemocompatibility of poly(N-isopropylacrylamide)-co-poly(ethylene glycol), PNIPAAM-PEG based nanoparticles and the influence of poly(ethylene glycol), PEG on the interactions of nanoparticles with cells.
Nany, Gulati, Rachna, Rastogi, Amit K, Dinda, Renu, Saxena, Veena, Koul   +4 more
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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
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Protein Resistance of PNIPAAm Brushes: Application to Switchable Protein Adsorption

Langmuir, 2009
Protein adsorption, as the primary process occurring when a foreign surface comes into contact with a biosystem, was studied on thin polymer brush films consisting of poly(N-isopropylacrylamide) (PNIPAAm) and poly(2-vinylpyridine) (P2VP). These films were prepared by the "grafting to" method. The protein resistance of stimuli responsive PNIPAAm-brushes
Sina, Burkert, Eva, Bittrich, Marco, Kuntzsch, Martin, Müller, Klaus-Jochen, Eichhorn, Cornelia, Bellmann, Petra, Uhlmann, Manfred, Stamm   +7 more
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Mechanical and rheological behavior of pNIPAAM crosslinked macrohydrogel

Reactive and Functional Polymers, 2013
In this study for the first time we investigate the most common reticulated N-isopropylacrylamide (pNIPAAM) macrohydrogel for both its mechanical response and shear rheological behavior in time and frequency domains. Hydrogels are characterized by water content volume and weight measurements, FT-IR spectroscopy, scanning electron microscopy and ...
Puleo G. L., Zulli F., Piovanelli M., GIORDANO, MARCO, Mazzolai B., Beccai L., ANDREOZZI, LAURA   +6 more
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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
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Thermoresponsive “irreversible” property change of POSS-crosslinked PNIPAAm hydrogels

Polymer Chemistry, 2023
Incorporation of a strongly hydrophobic component as a crosslinking point enables reversibility control of property change of thermoresponsive hydrogels.
Shohei Ida, Tenki Hikida, Atsumi Kawai, Tomonari Matsuda, Souma Suzuki, Hiroaki Imoto, Kensuke Naka, Shokyoku Kanaoka   +7 more
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Cell growth and detachment from protein‐coated PNIPAAm‐based copolymers

Journal of Biomedical Materials Research Part A, 2007
AbstractThe cultivation of cells requires the use of unfavorable proteolytic enzymes, which cause cell‐surface modification and also need considerable optimization. Recently, with the development of smart polymers, research has looked to using thermoresponsive polymers as cell culture substrates.
Martin T, Moran, William M, Carroll, Irina, Selezneva, Alexander, Gorelov, Yuri, Rochev   +4 more
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