نتایج جستجو برای: nipam polymer

تعداد نتایج: 93135  

Journal: :ACS nano 2017
Adam M Maley George J Lu Mikhail G Shapiro Robert M Corn

Near-infrared surface plasmon resonance imaging (SPRI) microscopy is used to detect and characterize the adsorption of single polymeric and protein nanoparticles (PPNPs) onto chemically modified gold thin films in real time. The single-nanoparticle SPRI responses, Δ%RNP, from several hundred adsorbed nanoparticles are collected in a single SPRI adsorption measurement. Analysis of Δ%RNP frequenc...

2009
Sara M. Hashmi Eric R. Dufresne

Microgels are important materials for both basic science and engineering and have wide applications from the study of phase transitions to the delivery of drugs. These micron and sub-micron particles, made of hydrogel materials, respond to solvent conditions. The most common microgels are environmentally sensitive, responding to temperature and pH. Our material of interest, poly (N-isopropylacr...

2015
Chun-Hua Lu Weiwei Guo Xiu-Juan Qi Avner Neubauer Yossi Paltiel Itamar Willner

A G-rich nucleic acid-tethered acrylamide/N-isopropylacrylamide (NIPAM) copolymer is prepared. The nucleic acid-modified pNIPAM chains assemble, in the presence of K ions, into a stimuli-responsive G-quadruplex-crosslinked pNIPAM hydrogel undergoing cyclic and reversible solution/hydrogel/solid transitions. Addition of kryptofix [2.2.2], CP, to the K-stabilized G-quadruplex-crosslinked hydrogel...

Journal: :Macromolecular Chemistry and Physics 2022

The influence of homopolymer architecture on the properties polyion complex micelles is reported. Using a combination dynamic and static light scattering, authors show how only relevant in kinetically trapped states formed by electrostatic assembly poly(N-isopropyl acrylamide-block-styrene sulfonate) (p(NIPAM-b-SS) linear, 4-arm, 8-arm star quaternized poly(dimethyl amino ethyl acrylate) (PDMAE...

Journal: :به زراعی کشاورزی 0
خدیجه روستایی دانشجوی کارشناسی ارشد زراعت، دانشکده کشاورزی، دانشگاه یاسوج، یاسوج - ایران محسن موحدی دهنوی استادیار گروه زراعت و اصلاح نباتات، دانشکده کشاورزی، دانشگاه یاسوج، یاسوج - ایران سید علی خادم دانشجوی سابق کارشناسی ارشد زراعت، گروه زراعت و اصلاح نباتات، دانشکده کشاورزی، دانشگاه زابل، زابل - ایران حمیدرضا اولیایی استادیار گروه علوم خاک، دانشکده کشاورزی، دانشگاه یاسوج، یاسوج - ایران

to investigate effects of different super absorbent polymer and animal manure ratios on the quantitative and qualitative characteristics of soybean under drought stress, a split plots experiment was conducted based on randomized complete block design with three replications in marvdasht, iran in 2009. main factor included of irrigation with 50, 100 and 150 mm evaporation from pan class a and su...

2013
John Osambo W. Rudolf Seitz Daniel P. Kennedy Roy P. Planalp Aaron M. Jones Randy K. Jackson Shawn Burdette

Microparticles consisting of the thermal responsive polymer N-isopropyl acrylamide (polyNIPAM), a metal ion-binding ligand and a fluorophore pair that undergoes fluorescence resonance energy transfer (FRET) have been prepared and characterized. Upon the addition of Cu(II), the microparticles swell or contract depending on whether charge is introduced or neutralized on the polymer backbone. The ...

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