Results 131 to 140 of about 49,790 (284)

Embedded Direct‐Written Organic Micro‐TEGs for High‐Efficiency Skin‐Heat Harvesting

Advanced Electronic Materials, EarlyView.
A finite‐element–guided design of direct‐written organic micro‐thermoelectric generators is presented for efficient skin‐heat harvesting. Embedding PEDOT:PSS/PBFDO thermoelectric legs within flexible substrates suppresses interfacial heat losses and enhances vertical heat flow.
Milad Jabri, Saeed Masoumi, Dimitrios Paparas, Mónica Acuautla, Luigi Giuseppe Occhipinti   +4 more
wiley   +1 more source

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

Polypyrrole Soft Actuators [PDF]

, 2011
Organic soft actuators attract strong attentions because they have many advantages compared to conventional mechanical actuators. Organic soft actuators are generally light and flexibly deformed. In addition, they operate under low voltage ranges as low as 1 volt or so, and generate no sound during deformation.
openaire   +2 more sources

Bioprinted Excitable Tissues with Multistimulation Systems for Promoting Function and Maturation

Advanced NanoBiomed Research, EarlyView.
This review provides an overview of stimulation strategies used to enhance the functional maturation of bioprinted excitable tissues. It addresses key limitations in physiological performance of bioprinted excitable tissues, outlines major stimulation modalities—including electrical, mechanical, optical, magnetic, ultrasound, and hybrid—and examines ...
Uijung Yong, Jinseon Park, Jinah Jang
wiley   +1 more source

Modification des polymères conducteurs avec de petites particules métalliques; propriétés des films de polypyrrole et de polyaniline platines

CHIMIA, 1992
The properties of two ?-conjugated conducting polymers, polypyrrole, and polyaniline, modified with small amounts of Pt, have been investigated.
Martine Ulmann, Robert Kostecki, Jan Augustynski, David J. Strike, Milena Koudelka-Hep   +4 more
doaj   +2 more sources

Synergistic Effects of Co‐Activation Agents on an MnO–Activated Carbon Composite Electrode for Electrochemical Supercapacitors

Asia-Pacific Journal of Chemical Engineering, EarlyView.
ABSTRACT Carbon materials synthesized from biomass are promising candidates for supercapacitor electrodes. Various activation processes for developing carbon materials with high surface areas have been investigated. Here, a manganese monoxide (MnO)–porous‐activated carbon (AC) composite was fabricated via the chemical activation of coconut shell by the
Seung‐Heon Ryu, Changmin Kim, Jeeyoung Shin, Young‐Wan Ju   +3 more
wiley   +1 more source

Ultrasound–Calcination Synergistic Control of (Ce, La)PO4 Catalyst Structure for Enhanced Low‐Temperature NH3‐SCR Performance

Asia-Pacific Journal of Chemical Engineering, EarlyView.
ABSTRACT In this study, (Ce, La)PO4 catalysts were synthesized via an ultrasound‐assisted method. The effects of ultrasound duration and calcination temperature on the low‐temperature NH3‐SCR performance were systematically investigated. The results indicated that the (Ce, La)PO4 catalyst prepared with an ultrasound treatment time of 20 min and a ...
Na Li, Kai Yan, Shuning Tan, Ruifang Wang, Zhiyu Zhang   +4 more
wiley   +1 more source

Membrane Polymers for the Pervaporative Separation of Polar Organics: Methanol and Acetonitrile

Journal of Applied Polymer Science, EarlyView.
We tested seven polymers as membranes for the pervaporative separation of methanol‐acetonitrile mixtures. Chloroprene rubber, silicone rubber, and Matrimid showed effective separation by favoring acetonitrile transport, enabling azeotrope breaking. Plasticization was assessed using Broadband Dielectric Spectroscopy.
Jordan Janák, Jan Polena, Tereza Šimsová, Jonatan Šercl, Zdeněk Hrdlička, Tomáš Moucha, Štěpán Hovorka, Michal Fulem, Ondřej Vopička   +8 more
wiley   +1 more source

Size and shape of polypyrrole particles in aqueous solutions of poly-( N-vinylpyrrolidone)

Тонкие химические технологии, 2013
Based on the IR spectroscopy data and on the analysis of rheological characteristics of polypyrrole aqueous suspension stabilized with poly-(N-vinylpyrrolidone) we conjecture that a physical lattice composed with poly-(N-vinylpyrrolidone) is formed ...
Ya. O. Mezhuev, Yu. V. Korshak, A. I. Piskareva, M. I. Shtilman   +3 more
doaj  

AC impedance analysis of polypyrrole thin films [PDF]

The AC impedance spectra of thin polypyrrole films were obtained at open circuit potentials from -0.4 to 0.4 V vs SCE. Two limiting cases are discussed for which simplified equivalent circuits are applicable.
Martin, Charles R., Penner, Reginald M.
core   +1 more source