Results 101 to 110 of about 16,421 (234)

Smart Bioinspired Material‐Based Actuators: Current Challenges and Prospects

Advanced Intelligent Systems, Volume 7, Issue 3, March 2025.
This work gathers, in a review style, an extensive and comprehensive literature overview on the development of autonomous actuators based on synthetic materials, bringing together valuable knowledge from several studies. Furthermore, the article identifies the fundamental principles of actuation mechanisms and defines key parameters to address the size
Alejandro Palacios, Léon Chiriatti, Simon Poppinga, Thomas Speck, Vincent Le Houérou   +4 more
wiley   +1 more source

Bistable Dual‐Responsive Azobenzene‐co‐PNIPAM Soft Microactuators via Two‐Photon Direct Laser Writing

Advanced Intelligent Systems, EarlyView.
This work shows the successful integration of intrinsic bistability into thermoresponsive soft microactuators, fabricated by two‐photon polymerization utilizing the (E)–(Z)‐isomerization of azobenzenes. The bistable behavior accounts for a reversible volume change of Azo_pNIPAM microactuators initiated by light irradiation, at constant ambient ...
Chantal Barwig, Ruchira Colaco, Alina‐Sophie Koch, Sophie Geiger, Ernest R. Curticean, Irene Wacker, Zhe Wang, Målin Schmidt, Annabelle Sonn, Sadaf Pashapour, Fereydoon Taheri, Rasmus R. Schröder, Anne Staubitz, Christine Selhuber‐Unkel   +13 more
wiley   +1 more source

Solvent-induced micelle formation in a hydrophobic interaction model

, 2004
We investigate the aggregation of amphiphilic molecules by adapting the two-state Muller-Lee-Graziano model for water, in which a solvent-induced hydrophobic interaction is included implicitly.
A. Ben-Naim, B. Normand, C. Tanford, F. H. Stillinger, G. Gompper, J. N. Israelachvili, N. Muller, P. De Los Rios, P. L. Privalov, S. H. Yalkowsky, S. Moelbert, W. Kauzmann, Y. Kita   +12 more
core   +1 more source

Phasentrennung von Nukleinsäuren: Mechanismen, Eigenschaften und Anwendungen

Angewandte Chemie, EarlyView.
Jüngste Entdeckungen zeigen, dass einzelsträngige langkettige Nukleinsäuren temperaturinduziert phasentrennen und dabei mikrometergroße Kondensate bilden. Dieser Minireview fasst das aktuelle mechanistische Verständnis dieses Phänomens zusammen, beschreibt Strategien zur gezielten Kontrolle der physikalischen und chemischen Eigenschaften der Kondensate
Weixiang Chen, Johann Fritzen, Andreas Walther   +2 more
wiley   +1 more source

Phase Separation of Nucleic Acids: Mechanisms, Properties, and Applications

Angewandte Chemie International Edition, EarlyView.
Recent discoveries have shown that single‐stranded long‐chain nucleic acids can undergo temperature‐induced phase separation, enabling formation of micrometer‐sized condensates. This Minireview discusses the current mechanistic understanding of this phenomenon, highlights strategies for controlling the physical and chemical properties of these ...
Weixiang Chen, Johann Fritzen, Andreas Walther   +2 more
wiley   +1 more source

Reversible Thermoassociation of Water-Soluble Polymers Thermoassociation réversible de polymères hydrosolubles

Oil & Gas Science and Technology, 2006
In various industrial fields, water soluble polymers are commonly used as thickening agents to control the reology of aqueous fluids. Nevertheless, their properties are weakened as the temperature increases. In order to overcome this problem, the concept
L'alloret F., Maroy P., Hourdet D., Audebert R.   +3 more
doaj   +1 more source

Poly(NIPAM-co-MPS)-grafted multimodal porous silica nanoparticles as reverse thermoresponsive drug delivery system

Asian Journal of Pharmaceutical Sciences, 2017
Hybrid drug delivery systems (DDS) have been prepared by grafting poly(NIPAM-co-MPS) chains on multimodal porous silica nanoparticles having an inner mesoporous structure and an outer thin layer of micropores.
Sushilkumar A. Jadhav, Valentina Brunella, Dominique Scalarone, Gloria Berlier   +3 more
doaj   +1 more source

Signatures of a Concentration Dependent Flory chi Parameter: Swelling and Collapse of Coils and Brushes

, 2002
The quality of solvents of polymers is often described in terms of the Flory chi parameter typically assumed to depend only on the temperature, T. In certain polymer-solvent systems fitting the experimental data enforces the replacement of chi(T) by a ...
Baulin, V. A., Halperin, A.
core   +1 more source

Tuning LCST with thiol-responsiveness of thermoresponsive copolymers containing pendant disulfides

Chem. Commun., 2013
A new approach that centers on modulating the hydrophobic-hydrophilic balance by conversion of pendant disulfides to thiols and further to sulfides enables facile tuning of the thermoresponsive properties of thiol-responsive copolymers.
Rahimian-Bajgiran, Kaiwan, Chan, Nicky, Zhang, Qian, Noh, Seung Man, Lee, Hyung-il, Oh, Jung Kwon   +5 more
openaire   +4 more sources

Tailored Dual Responsive Hybrid Gelatin Methacryloyl/Poly[2‐(Dimethylamino)Ethyl Methacrylate] Hydrogels for Efficient Ibuprofen Release in Topical Applications

Journal of Applied Polymer Science, EarlyView.
GelMA/DMAEMA hybrid hydrogels for release of ibuprofen. ABSTRACT In this study, biocompatible hydrogels intended for topical delivery of ibuprofen were synthesized from gelatin methacryloyl (GelMA) and 2‐(dimethylamino)ethyl methacrylate (DMAEMA) by varying their proportions. The impact of different GelMA and DMAEMA ratios was comprehensively evaluated
Guilherme Frey Schutz, Ana Luiza Assis Coutinho, Carolina Coli Zuliani, Ibsen Bellini Coimbra, Jéssica Heline Lopes da Fonseca, Marcos Akira d'Ávila, Ângela Maria Moraes, Roniérik Pioli Vieira   +7 more
wiley   +1 more source