Results 81 to 90 of about 19,913 (291)

A Piezo‐Mimetic Ionic Hydrogel Harnessing Joint Motion for Cartilage Repair

Advanced Science, EarlyView.
A piezo‐mimetic ionic hydrogel converts mechanical deformation into bioactive ionic currents via stress‐induced asymmetric ion migration. Coupled with sustained Mg2+ release, this mechano‐electrochemical platform bridges mechanical loading and cellular signaling, enabling load‐adaptive stimulation and enhanced cartilage regeneration. ABSTRACT Articular
Chenyuan Gao, Xinyu Wang, Zhifeng Wu, Xinya Zhang, Xiao Geng, Ti Zhang, Yue Wang, Hongwei Xia, Jun Zhang, Xianbo Qiu, Cuiru Sun, Yingjie Yu, Wenli Dai, Hua Tian, Qing Cai   +14 more
wiley   +1 more source

The Viscosity of Extremely Low Concentrated Anionic Polyelectrolyte Solutions

Applied Rheology, 1999
Polyelectrolytes are macromolecules which carry a large quantity of ionizable groups along their chains. By dissolving them in suitable solvents, for example water, these groups dissociate in highly charged macroions and an equivalent quantity of low ...
Gampert Bernhard, Wilkes Christoph, Eich Thomas   +2 more
doaj   +1 more source

Editorial Special issue on Polyelectrolytes

, 2001
At the launch of the Soft Matter part of the European Physical Journal EPJ E, we insisted on two points: the journal should be interdisciplinary and accessible to the various communities working on Soft Condensed Matter, primarily physicists, physico ...
J.F. Joanny, Joanny, J.-F.
core   +1 more source

Oligopeptides/DNA Coacervate Droplets as Macromolecular Delivery Microcarriers

Advanced Science, EarlyView.
Oligopeptide–DNA coacervates formed via liquid–liquid phase separation serve as programmable carriers for macromolecular cargos, entering cells through lipid raft–associated pathways and subsequently undergoing enzyme triggered intracellular disassembly driven by DNA degradation processes, thereby enabling efficient, controlled, and spatially defined ...
Linyi Zhang, Chong Wang, Mengqi Han, Yi Yang, Teng Ma, Luoran Shang   +5 more
wiley   +1 more source

Synthesis and characterization of a hyper-branched water-soluble β-cyclodextrin polymer

Beilstein Journal of Organic Chemistry, 2014
A new hyper-branched water-soluble polymer was synthesized by reacting β-cyclodextrin with pyromellitic dianhydride beyond the critical conditions that allow the phenomenon of gelation to occur. The molar ratio between the monomers is a crucial parameter
Francesco Trotta, Fabrizio Caldera, Roberta Cavalli, Andrea Mele, Carlo Punta, Lucio Melone, Franca Castiglione, Barbara Rossi, Monica Ferro, Vincenza Crupi, Domenico Majolino, Valentina Venuti, Dominique Scalarone   +12 more
doaj   +1 more source

Geometry‐Controlled Assembly of Self‐Standing Nanorods With Undisturbed Plasmonics

Advanced Science, EarlyView.
This study reports a geometry‐driven assembly strategy to vertically align Au@Ag core–shell nanorods on PS beads. This well‐defined architecture enables the preservation of the intrinsic optical response of individual nanorods. Thus, demonstrate a highly reproducible SERS enhancement with exceptional uniformity.
Yoel Negrin‐Montecelo, I. Brian Becerril‐Castro, Vladimir A. Baulin, Veronica Salgueiriño, Ramon A. Alvarez‐Puebla, Miguel A. Correa‐Duarte   +5 more
wiley   +1 more source

Polyelectrolyte complexes

, 2022
S.113-171This chapter presents selected ideas concerning complexes that are formed either by oppositely charged polyelectrolytes or by polyelectrolytes and surfactants of opposite charge.
Löwen, H., Thünemann, A.F., Joanny, J.-F., Müller, M., Dautzenberg, H.   +4 more
core  

Hydrogel Stack‐Tailored Logics and High‐Fidelity Multimodal Sensors Promoted by Precisely Evaluated Ionic Migration

Advanced Science, EarlyView.
Inspired by biological ion transport, this work introduces self‐powered multifunctional sensors utilizing tailored hydrogel stacks. Optimizing ionic migration with MXenes and carbon nanotubes achieves high‐performance energy harvesting and unique logic circuit functionality.
Haoran Chen, Hongjian Zhang, Zhonghui Shen, Taeuk Eom, Hyunseung Kim, Delong He, Jinbo Bai, Geon‐Tae Hwang, Yong Zhang, Chang Kyu Jeong   +9 more
wiley   +1 more source

Influence of the backbone chemistry and ionic functional groups of five pairs of oppositely charged polyelectrolytes on complex coacervation

Communications Chemistry
Complex coacervation plays an important role in various fields. Here, the influences of the backbone chemistry and ionic functional groups of five pairs of oppositely charged polyelectrolytes on complex coacervation were investigated. These pairs include
Yuri Hong, Surim Yoo, Jihoon Han, Junseong Kim, Yongjin Lee, YongSeok Jho, Youn Soo Kim, Dong Soo Hwang   +7 more
doaj   +1 more source

High Free‐Volume Imidazole‐Based Ionomers for High‐Temperature Proton Exchange Membrane Fuel Cells

Advanced Science, EarlyView.
High free‐volume imidazole‐based ionomers (PF4IM‐72) enable enhanced phosphoric acid uptake and efficient proton transport, delivering peak power densities of 0.645 W cm−2 at 160 °C and 0.838 W cm−2 at 200 °C in HT‐PEMFCs. This work highlights a promising platform for next‐generation ionomers with improved high‐temperature performance and stability ...
Ge Chao, Hyeon Keun Cho, Chang Yeon Hyun, Shirong Li, Jong Geun Seong, So Young Lee, Nanwen Li, Young Moo Lee   +7 more
wiley   +1 more source