Results 21 to 30 of about 695,342 (262)

Fluorescence Tumor-Imaging Using a Thermo-Responsive Molecule with an Emissive Aminoquinoline Derivative

Nanomaterials, 2018
We synthesized (2,4-trifluoromethyl-7-N-bis(2,5,8,11-tetraoxatridecane-13-yl)-aminoquinoline) TFMAQ-diEg4, an emissive aminoquinoline derivative that incorporated two tetraethyleneglycol chains into an amino group.
Takeru Araki, Yasufumi Fuchi, Shuhei Murayama, Ryoma Shiraishi, Tokimi Oyama, Mariko Aso, Ichio Aoki, Shigeki Kobayashi, Ken-ichi Yamada, Satoru Karasawa   +9 more
doaj   +1 more source

Catalytic one-handed helix-induction and memory of amphiphilic poly(biphenylylacetylene)s in water

Giant, 2020
A series of amphiphilic biphenylylacetylene-based homo- and copolymers (PBPAs) carrying chiral and/or achiral oligo(ethylene glycol) pendants at the 4′-position of the biphenyl units were synthesized and the amplification of the macromolecular helicity ...
Tomoyuki Ikai, Kosuke Mizumoto, Ryoma Ishidate, Winald R. Kitzmann, Riho Ikeda, Chiaki Yokota, Katsuhiro Maeda, Eiji Yashima   +7 more
doaj   +1 more source

Tuning the Size of Thermoresponsive Poly(N-Isopropyl Acrylamide) Grafted Silica Microgels

Gels, 2017
Core-shell microgels were synthesized via a free radical emulsion polymerization of thermoresponsive poly-(N-isopropyl acrylamide), pNipam, on the surface of silica nanoparticles. Pure pNipam microgels have a lower critical solution temperature (LCST) of
Nils Nun, Stephan Hinrichs, Martin A. Schroer, Dina Sheyfer, Gerhard Grübel, Birgit Fischer   +5 more
doaj   +1 more source

Tunable Temperature Response of a Thermochromic Photonic Gel Sensor Containing N-Isopropylacrylamide and 4-Acryloyilmorpholine

Sensors, 2017
In this study, thermochromic photonic gels were fabricated using 2-hydroxyethyl methacrylate (HEMA) as a hydrogel building block, and 4-Acryloyl morpholine (ACMO) and N-isopropylacrylamide (NIPAAM) as thermoresponsive monomers with different critical ...
Hwanam Kye, Young Gook Koh, Youkyung Kim, Sung Gu Han, Hyunjung Lee, Wonmok Lee   +5 more
doaj   +1 more source

Optical and rheological studies on weak gel-sol transition in aqueous solutions of poly(N-isopropylacrylamide)-block-polystyrene

eXPRESS Polymer Letters, 2017
The optical and rheological properties of aqueous solutions of block copolymer composed of low molecular weight poly(N-isopropylacrylamide)-b-polystyrene are studied as a function of temperature.
S. Sanjeevi Prasath, J. Brijitta, B. V. R. Tata, R. G. Joshi, K. Chennakesavulu, D. K. Gupta   +5 more
doaj   +1 more source

Near-Infrared Light-Triggered Thermo-responsive Poly(N-Isopropylacrylamide)-Pyrrole Nanocomposites for Chemo-photothermal Cancer Therapy

Nanoscale Research Letters, 2020
The combination therapy based on multifunctional nanocomposites has been considered as a promising approach to improve cancer therapeutic efficacy. Herein, we report targeted multi-functional poly(N-isopropylacrylamide) (PNIPAM)-based nanocomposites for ...
Ha Hee Shin, Hyung Woo Choi, Jae Hyun Lim, Ji Woon Kim, Bong Geun Chung   +4 more
doaj   +1 more source

Lower critical solution temperature versus volume phase transition temperature in thermoresponsive drug delivery systems

eXPRESS Polymer Letters, 2011
One of the most subtle problem in the characterization of thermoresponsive polymers is the evaluation of the relationship between the lower critical solution temperature (LCST) of the linear polymer and the volume phase transition temperature (VPTT) of ...
doaj   +1 more source

Lower critical solution temperature behavior in polymer blends: compressibility and directional-specific interactions [PDF]

Macromolecules, 1984
Lower critical solution temperature (LCST) behavior in polymer blends is shown to be the result of the compressible nature of the system, the directional-specific character of the intermolecular interactions, or a combination of both. Certain random copolymer-homopolymer blends are examples of the first possibility.
Brinke, Gerrit ten, Karasz, Frank E.
openaire   +2 more sources

The Properties of Thermosensitive Zwitterionic Sulfobetaine NIPAM-co-DMAAPS Polymer and the Hydrogels: The Effects of Monomer Concentration on the Transition Temperature and Its Correlation with the Adsorption Behavior

Indonesian Journal of Chemistry, 2020
The properties of N-isopropylacrylamide copolymerized with N,N-dimethyl(acrylamidopropyl)ammonium propane sulfonate [poly(NIPAM-co-DMAAPS)] prepared with various monomer ratios such as transition temperature, molecular structure, viscosity were ...
Eva Oktavia Ningrum, Agus Purwanto, Galuh Chynintya Rosita, Asep Bagus   +3 more
doaj   +1 more source

Synthesis and characterization of a novel temperature-pH responsive copolymer of 2-hydroxypropyl acrylate and aminoethyl methacrylate hydrochloric salt

eXPRESS Polymer Letters, 2009
In this investigation, a novel temperature-pH responsive copolymer was prepared by the radical copolymerization between 2-hydroxypropyl acrylate (HPA) and aminoethyl methacrylate hydrochloric salt (AMHS).
doaj   +1 more source