Results 51 to 60 of about 29,427 (254)

Effect of surfactant concentration on the responsiveness of a thermoresponsive copolymer/surfactant mixture with potential application on Smart foams formulations

, 2017
We studied a system formed by a mixture of a thermoresponsive negatively charged graft copolymer (Alg-g-PNIPAAm) with a brush-type structure, and an oppositely charged surfactant (DTAB), in bulk and at the air-solution interface. We performed experiments
Cuenca, Ezequiel, Domínguez, Claudia, Lencina, M. M. Soledad, Leyes, Marcos D. Fernández, Miconi, Eugenio Fernández, Ritacco, Hernán A.   +5 more
core   +1 more source

Enhanced cancer therapy with cold-controlled drug release and photothermal warming enabled by one nanoplatform [PDF]

, 2018
Stimuli-responsive nanoparticles hold great promise for drug delivery to improve the safety and efficacy of cancer therapy. One of the most investigated stimuli-responsive strategies is to induce drug release by heating with laser, ultrasound, or ...
Agarwal, Pranay, He, Xiaoming, Liang, Yutong, Lu, Xiongbin, Tkaczuk, Katherine H. R., Wang, Hai, Xu, Jiangsheng, Zhao, Gang   +7 more
core   +1 more source

Controlled Movement of Soft Actuators using Multi‐Responsive Microgel Arrays and Microcirculatory Systems

Advanced Functional Materials, EarlyView.
Microscale hydrogels (microgels) feature improved mass transport characteristics supportive of fast actuation and chemical tunability amenable to programmed stimuli response. A unique soft actuator architecture is realized by encapsulating microgels in soft microcirculatory systems which enable the convenient delivery of liquid stimuli for powering and
Nengjian Huang, Brennan P. Watts, Stephen A. Morin   +2 more
wiley   +1 more source

Dual-responsive reduced graphene oxides prepared by radiation-initiated living radical grafting polymerization

Fushe yanjiu yu fushe gongyi xuebao
Temperature-responsive poly(N-isopropylacrylamide) (PNIPAAm) was grafted onto the surface of graphene oxide (GO) via reversible addition-fragmentation chain transfer polymerization initiated by γ-ray radiation.
WENG Hanqin, ZHANG Baoying, WANG Xuan, XIAO Xin, YAMASHITA Shinichi, WANG Mozhen, GE Xuewu   +6 more
doaj   +1 more source

Application of Thermoresponsive Polymer and Microfluidics to the Development of a Velocity-Dependent Cell-Sorting Microdevice [PDF]

, 2018
3rd Place, Denman Undergraduate Research ForumLow-cost velocity dependent cell sorting in 2D is a currently nonexistent technology for cancer research. The development of such a device would enable further research on the treatment of various deleterious
Fine, Jesse
core  

Adaptive 4D‐Printed Vascular Stents With Low‐Temperature‐Activated and Intelligent Deployment

Advanced Functional Materials, EarlyView.
Microarchitected coronary artery stents were fabricated using a polycaprolactone (PCL)‐based shape memory polymer (SMP) composite via projection micro‐stereolithography (PµSL) 4D printing. By incorporating diethyl phthalate (DEP) as a plasticizer, the thermal transition temperature (Ttran) was modulated to about 37°C, enabling rapid and autonomous ...
Yannan Li, Yifan Pan, Chikahiro Imashiro, Chaolun Xu, Jianxian He, Jingao Xu, Kewei Song, Ze Zhang, Chen Gao, Junbo Jiang, Runhuai Yang, Kayo Hirose, Shinjiro Umezu   +12 more
wiley   +1 more source

Functionalization of Multi-Walled Carbon Nanotubes with Thermo-Responsive Azide-Terminated Poly(N-isopropylacrylamide) via Click Reactions

Molecules, 2013
Covalently functionalized multi-walled carbon nanotubes (MWNTs) were prepared by grafting well-defined thermo-responsive poly(N-isopropylacrylamide) (PNIPAM) via click reactions.
Yujun Feng, Zanru Guo, Ya Shuai, Xin Su
doaj   +1 more source

Characterization of Ball-milled Poly(Nisopropylacrylamide) Nanogels

Current Directions in Biomedical Engineering, 2022
Poly(N-isopropylacrylamide) (PNIPAM) hydrogels are one of the most commonly studied thermoresponsive biomaterials. In this work, we investigate ball milling as a method of producing PNIPAM nanogels and confirm that the temperature responsiveness is ...
Huling Jennifer, Wulf Katharina, Illner Sabine, Grabow Niels, Teske Michael   +4 more
doaj   +1 more source

SI‐bioATRP in Mesoporous Silica for Size‐Exclusion Driven Local Polymer Placement

Advanced Functional Materials, EarlyView.
An enzyme‐catalyzed surface‐initiated atom transfer radical polymerization (SI‐bioATRP) of an anionic monomer within mesoporous silica particles, using hemoglobin as a catalyst, allows for controlling the location of the formed polymer via size‐exclusion effects between the nanopores and the biomacromolecules, thereby opening routes to functional ...
Oleksandr Wondra, Eleonora Ornati, Robert Lehn, Joanna J. Mikolei, Hergen Breitzke, Raheleh Pardehkhorram, Gerd Buntkowsky, Nico Bruns, Annette Andrieu‐Brunsen   +8 more
wiley   +1 more source

Poly(2-cyclopropyl-2-oxazoline): from rate acceleration by Cyclopropyl to Thermoresponsive properties [PDF]

, 2011
The synthesis and microwave-assisted living cationic ring-opening polymerization of 2-cyclopropyl-2-oxazoline is reported revealing the fastest polymerization for an aliphatic substituted 2-oxazoline to date, which is ascribed to the electron withdrawing
Baumgartel, Anja, Bloksma, Meta M, Hoogenboom, Richard, Kuse, Anette, Perevyazko, Igor Y, Schubert, Ulrich S, Vollrath, Antje, Weber, Christine   +7 more
core   +2 more sources