Results 71 to 80 of about 959,933 (243)

Active Oscillations of Elastic Membranes Arising from the Coupling with a Catalytic Reaction

Advanced Science, EarlyView.
Coupling an elastic membrane to a catalytic reaction produces active oscillations that self‐sustain for hours: the membrane cyclically inflates and deflates as the reaction spontaneously activates and deactivates, without external power. Energy release is directly embodied in the oscillation dynamics, opening elasto‐chemical strategies for the physical
Alberto Comoretto, Samuel D. Gollob, Erik Steur, Kaitlyn P. Becker, Ellen T. Roche, Johannes T.B. Overvelde   +5 more
wiley   +1 more source

Preparation of exenatide-loaded linear poly(ethylene glycol)-brush poly(L-lysine) block copolymer: potential implications on diabetic nephropathy

International Journal of Nanomedicine, 2017
Fei Tong Department of Pathology and Pathophysiology, Provincial Key Discipline of Pharmacology, Jiaxing University Medical College, Jiaxing, Zhejiang, People’s Republic of China Abstract: The poly(ethylene glycol)-b-brush poly(l-lysine) polymer (
Tong F
doaj  

Thermoresponsive block-copolymer brush-modified interfaces for effective fabrication of hepatocyte sheets

Materials & Design
Hepatic tissue engineering has been investigated for the treatment of liver disease. One promising tissue is the hepatocyte sheet, cultured in temperature-responsive cell culture dishes.
Kenichi Nagase, Marin Nagaoka, Junnosuke Matsuda, Naoto Kojima   +3 more
doaj   +1 more source

Poly(2-aminoethyl methacrylate)-based polyampholyte brush surface with carboxylic groups to improve blood compatibility

, 2020
Zwitterionic material-based polymer brush significantly prevents protein adsorption and cell adhesion, which leads to the blood compatibility. However, zwitterionic polymer itself is difficult to be modified further, for the blood compatibility since the
Nilsson Ekdahl, Kristina,, Manivel, Vivek Anand,, Matsushita, Taishi,, Azuma, Tomoyuki,, Teramura, Yuji,, Nilsson, Bo,, Takai, Madoka,   +6 more
core   +1 more source

Bio‐Inspired Gradient Heterogeneous Architectures for Ultrasensitive and Robust Strain Sensors via Programmable Crack Engineering

Advanced Science, EarlyView.
Inspired by the insect campaniform sensillum, a heterogeneous bilayer strain sensor is developed based on a unique impedance mismatch and three‐dimensional structural dynamic percolation strategy. The sensor enables real‐time multi‐joint teleoperation of three joints and the gripper using a six‐degree‐of‐freedom robotic‐arm platform.
Qi Wu, Tiantong Wang, Yinhao Wang, Yanggang Feng, Yan Huang   +4 more
wiley   +1 more source

Long-range polymer ordering by directional coating to remarkably enhance the charge carrier mobility in PCDTPT-based organic field-effect transistors

Royal Society Open Science
With the wide potential of organic field-effect transistors in all the modern electronic circuitries, researchers are grappling with the challenge of poor charge transport and hence lower mobility in organic polymers.
M. Javaid Iqbal, Kashif Saghir, Tahmina Afzal, Badriah S. Almutairi, M. Zahir Iqbal, Mohsin Ali Raza, Saira Riaz   +6 more
doaj   +1 more source

Polymers Interfacing with Biology

CHIMIA, 2011
The development of various controlled radical polymerization techniques as well as site- and residue specific strategies to modify peptides/proteins with synthetic polymers have made polymer chemistry a powerful tool to address materials ...
Frederik Wurm, Harm-Anton Klok
doaj   +1 more source

Hydrogel Phase Transition‐Driven Soft Gating Circumvents Debye Screening for Advanced Biosensing

Advanced Science, EarlyView.
A 3D soft gate utilizes a macroscopic hydrogel phase transition to effectively circumvent Debye screening in high‐salt environments. The intact matrix maximizes transmembrane ion flux via volumetric Donnan enrichment and superhydrophilicity. Target‐triggered network disassembly abolishes these effects, introducing a synergistic physical barrier.
Liu Shi, Zimeng Zhang, Bingheng Li, Yalei Gao, Ruirui Zhang, Zheying Mu, Jian Ni, Bing Bo, Genxi Li   +8 more
wiley   +1 more source

Versatile SI-ATRP Growth of Methacrylate Brushes on Superparamagnetic Iron Oxide Nanoparticles Enables Methotrexate-Mediated Antineoplastic Activity in MCF-7 Cells

Pharmaceutics
Background/Objectives: Superparamagnetic iron-oxide nanoparticles (SPIONs) bearing poly(methacrylate) brushes were synthesized via surface-initiated atom-transfer radical polymerization (SI-ATRP) as magnetically responsive nanoplatforms.
Razvan Ghiarasim, Alexandru Rotaru, Cristian-Dragos Varganici, Mariana Pinteala, Narcisa-Laura Marangoci, Ion Tiginyanu, Natalia Simionescu   +6 more
doaj   +1 more source

Polydisperse Brush with the Linear Density Profile [PDF]

, 2018
Macromolecules densely end-grafted to a planar solid surface form a polymer monolayer (brush). It is known that, in a good solvent, the density profile of monodisperse brushes parabolically decays on moving away from the plane.
Klushin, Leonid I., Schmid, Friederike, Skvortsov, Aleksander M., Qi, Shuanhu   +3 more
core   +1 more source