Results 201 to 210 of about 31,983 (262)

Biomaterials‐Based Hydrogel with Superior Bio‐Mimetic Ionic Conductivity and Tissue‐Matching Softness for Bioelectronics

Advanced Functional Materials, EarlyView.
By mimicking the ion‐accelerating effect of ion channel receptors in neuron membranes, a biomaterials‐based ionic hydrogel (BIH) is developed, which offers a high ionic conductivity of 7.04 S m−1, outperforming conventional chitosan, cellulose, agarose, starch, and gelatin based ionic hydrogels.
Baojin Chen, Renjie Yu, Jiaqi Wang, Yunxiang Feng, Yujie Zhang, Yanchao Mao, Chongxin Shan, Xudong Wang   +7 more
wiley   +1 more source

Nanothermometry in Living Cells: Physical Limits, Conceptual and Material Challenges

Advanced Functional Materials, EarlyView.
Heat and temperature are fundamental to life. When nanothermometers began probing regions as small as a living cell, they triggered controversial claims of large intracellular temperature gradients. We review physical constraints energy‐conservation, entropy production, thermodynamic fluctuations, and molecular dynamics.
Taras Plakhotnik
wiley   +1 more source

Bio‐Inspired Magnetically Tunable Structural Colors from Elliptical Self‐Assembled Block Copolymer Microparticles

Advanced Functional Materials, EarlyView.
Cephalopod‐inspired photonic microparticles with dynamic structural coloration are fabricated via confined self‐assembly of linear block copolymers into ellipsoids containing stacked lamellae. Embedded superparamagnetic nanoparticles enable rapid magnetic alignment, restoring vivid, angle‐dependent color.
Gianluca Mazzotta, Simone Bertucci, Jose Mendoza‐Carreño, Agustín Mihi, Paola Lova, Davide Comoretto, Ullrich Steiner, Marco Lattuada, Andrea Dodero   +8 more
wiley   +1 more source

Novel Functional Materials via 3D Printing by Vat Photopolymerization

Advanced Functional Materials, EarlyView.
This Perspective systematically analyzes strategies for incorporating functionalities into 3D‐printed materials via Vat Photopolymerization (VP). It explores the spectrum of achievable functionalities in recently reported novel materials—such as conductive, energy‐storing, biodegradable, stimuli‐responsive, self‐healing, shape‐memory, biomaterials, and
Sergey S. Nechausov, Patrick Fesser, Boris A. Bulgakov, Ulrich S. Schubert   +3 more
wiley   +1 more source

Self‐Powered Permeable Electronic Dressing for Exudate Management, Electrostimulation and Drug Delivery in Chronic Wound Healing

Advanced Functional Materials, EarlyView.
This study develops a self‐powered permeable electronic dressing (SPED) that synergistically integrates exudate management, electrical stimulation, and on‐demand drug delivery. The dressing effectively absorbs exudate while demonstrating potent antibacterial activity and accelerated tissue regeneration in diabetic mouse models, thereby promoting ...
Jiaheng Liang, Jingjing Fu, Jin Chai, Hongyu Jiang, Fan Chen, Yufei Zhang, Weihao Zhao, Xian Song, Zhihao Zhou, Lingtao Fang, Qiyao Huang, Peng Li, Zijian Zheng   +12 more
wiley   +1 more source

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Measuring skin conductance over clothes

Medical & Biological Engineering & Computing, 2012
We propose a new method that measures skin conductance over clothes to nonintrusively monitor the changes in physiological conditions affecting skin conductance during daily activities. We selected the thigh-to-thigh current path and used an indirectly coupled 5-kHz AC current for the measurement.
Ki Hwan, Hong, Seung Min, Lee, Yong Gyu, Lim, Kwang Suk, Park   +3 more
openaire   +2 more sources

Skin conductance and schizophrenic symptomatology

Acta Neuropsychiatrica, 2000
SUMMARYSkin conductance is a psychophysiological parameter that reflects fundamental processes such as attention and arousal. The present study explored whether deviations in skin conductance activity are associated with severity of schizophrenic symptoms.
J À, Campo, H L, Merckelbach, H, Nijman, M, Yeates-Frederikx, W, Allertz   +4 more
openaire   +2 more sources

Skin-Conductance, Alpha-Activity, and Vigilance

The American Journal of Psychology, 1965
In the typical vigilance-situation, S is required to detect and to respond to slight and infrequent changes in stimulation over long periods of time. The usual finding has been that performance declines markedly after about a half-hour at the task.' Little attention has thus far been paid to the possibility of a relationship between performance in ...
D R, DAVIES, A, KRKOVIC
openaire   +2 more sources

Basal Skin Conductance and Neonatal State

Child Development, 1965
Basal skin conductance was correlated with activity and respiration measures in a sample of 40 white bottle-fed human newborns divided into four equal groups by sex and parity. The age range was 60-110 hours. A significant positive correlation average was obtained between activity level and conductance.
GEORGE M. WELLER, RICHARD Q. BELL
openaire   +1 more source

Skin Conductance

The Journal of Nervous and Mental Disease, 1986
Resting skin conductance levels (SCLs) were measured in 50 patients with unipolar depression, in 71 controls (control group 1), and in 334 "stressed" normal controls (control group 2) who were first parents of newborns. The depressed group had significantly (p less than .00001) lower SCLs than did either control group, but the two control groups did ...
N G, Ward, H O, Doerr
openaire   +2 more sources