Results 111 to 120 of about 27,905 (245)

Wearable biofluids colorimetric biosensors

FlexMat, EarlyView.
Wearable and flexible colorimetric sensors enable real‐time, non‐invasive detection through visible color changes. Advances in materials and device engineering have driven their development; however, challenges remain in sensitivity, selectivity, and scalable manufacturing.
Zhaoyuan Lyu, Zhiqiang Xiao, Wenhao Shen, Cheng Liu, Te Gu, Ruchuan Cao, Fangyu Zhang, Chuizhou Meng, Shichao Ding   +8 more
wiley   +1 more source

Light-Stimulated Hydrogels with Incorporated Graphene Oxide as Actuator Material for Flow Control in Microfluidic Applications

Proceedings, 2017
Temperature-responsive Poly-N-isopropylacrylamide (PNIPAAm) hydrogels were modified with graphene oxide (GO) nanoparticles to increase the light absorption significantly and these gels can be heated and stimulated optothermically.
Lars Breuer, Eric Guthmann, Michael J. Schöning, Ronald Thoelen, Torsten Wagner   +4 more
doaj   +1 more source

A modular and programmable electrolyte platform: Covalently anchored thermochromic hydrogels for on‐demand electrochromic devices

FlexMat, EarlyView.
Developing stable, multifunctional hydrogel electrolytes without compromising performance presents a considerable challenge in the field. In this study, we introduce a material design strategy with broad applicability to combinations of functional polymeric segments, ionic monomers, and salts.
Manyu Liu, Jixiang Cui, Yulu Cai, Bin Deng, Yiqian Zhao, Chaohong Zhang, Shiguo Zhang, Hong Meng   +7 more
wiley   +1 more source

Macromolecular Poly(N-isopropylacrylamide) (PNIPAM) in Cancer Treatment and Beyond

Advances in Polymer Technology
Poly(N-isopropylacrylamide) (PNIPAM) is a versatile polymer known for its phase transition properties, exhibiting a lower critical solution temperature (LCST) of approximately 32°C.
Siddhi Throat, Sankha Bhattacharya
doaj   +1 more source

Poroelastic indentation of mechanically confined hydrogel layers

, 2016
We report on the poroelastic indentation response of hydrogel thin films geometrically confined within contacts with rigid spherical probes of radii in the millimeter range.
Chateauminois, A., Delavoipière, Jessica, Tran, Yvette, Verneuil, Emilie   +3 more
core   +3 more sources

Enrichment of Hyaluronic Acid Binding Tumor Cells by Modulation of Selective Adhesion on Microgel Surfaces

Macromolecular Rapid Communications, EarlyView.
We have developed a thermoresponsive microgel system for the selective enrichment of hyaluronic acid‐binding tumor cells. By modulating the adhesion on the microgel surface via temperature changes from 37°C to 30°C, we demonstrate a novel proof‐of‐principle for separating these tumor cell from white blood cells, which has potential applications in ...
Melanie Schmidt, Dilay Karayel, André Franken, Janita Müller, Laura Hartmann, Klaus Pantel, Tanja Fehm, Hans Neubauer, Stephan Schmidt   +8 more
wiley   +1 more source

Poly(O‐Propargyl‐N‐Amino Carbamate), a Reactive Polymer to Underpin Biomedical Applications of Poly(acetylene)s

Macromolecular Rapid Communications, EarlyView.
We report here a new methodology to prepare functional poly(acetylene)s under aqueous conditions. This methodology is underpinned by poly(O‐propargyl‐N‐amino carbamate) (P1), a reactive poly(acetylene) carrying acyl hydrazines. Thus, P1 reacts with aldehydes to give functional poly(acetylene)s, including cationic, hydrophobic, and sugar‐loaded poly ...
Tom Leigh, Greta Bellio, Daniel Crisan, Amit Deb, Alba Ramil‐Bouzas, Andrey Romanyuk, Ivan Torreiro‐Leon, Ana Rey‐Rico, Paco Fernandez‐Trillo   +8 more
wiley   +1 more source

Co-non-solvency: Mean-field polymer theory does not describe polymer collapse transition in a mixture of two competing good solvents

, 2015
Smart polymers are a modern class of polymeric materials that often exhibit unpredictable behavior in mixtures of solvents. One such phenomenon is co-non-solvency.
Kremer, Kurt, Marques, Carlos M., Mukherji, Debashish, Stuehn, Torsten   +3 more
core   +1 more source

Multi‐Responsive PAA/PNIPAM Semi‐IPN Hydrogel Properties Controlled by PAA Topology

Macromolecular Rapid Communications, EarlyView.
Polymer topology governs hydrogel behavior in semi‐interpenetrating networks. Cyclic poly(acrylic acid) enables controlled pH‐responsive swelling, improved stability, and enhanced deformability compared to linear analogues, while linear systems show higher strength during thermal de‐swelling.
Suraj Aswale, Gyeong Min Choi, Hyerin Kang, Aruna Kumar Mohanty, Hanyoung Kim, Hong Y. Cho, Heon Sang Lee, Hyun‐jong Paik   +7 more
wiley   +1 more source

Physical Gels of Atactic Poly(N-isopropylacrylamide) in Water: Rheological Properties and As-Derived Spinodal Temperature. [PDF]

Gels, 2023
Chuang YC, Wang Y, Wang C.
europepmc   +1 more source