Results 81 to 90 of about 204,577 (297)

MXene/PEDOT Functional Coatings on Flexible Microelectrode Arrays for Multianalyte In Vivo Neurochemical Sensing and Electrophysiology

open access: yesAdvanced Functional Materials, EarlyView.
A MXene/PEDOT coating enables multimodal functionality and dual‐analyte detection of dopamine and serotonin in flexible microelectrode arrays while enhancing electrophysiological recording quality. The anti‐fouling, low‐impedance interface overcomes key limitations of conventional coatings, providing a robust and versatile platform to investigate the ...
Ilaria Gatti   +8 more
wiley   +1 more source

A Schwarz Lemma for harmonic and hyperbolic-harmonic functions in higher dimensions

open access: yesManuscripta Mathematica, 1992
The Laplace-Beltrami operators on the unit ball and the half-space \(\{x_ p>0\}\) of \(R^ p\) are defined respectively by \[ \Delta_ 0={1- \| x\|^ 2\over 4}\cdot\left(\Delta+{2(p-2)\over 1-\| x\|^ 2}\cdot\langle x,\text{grad}\rangle\right)\text{ and } \Delta_ +=x^ 2_ p\cdot\left(\Delta+{2-p\over x_ p}\cdot{\partial\over\partial x_ p}\right), \] and ...
openaire   +2 more sources

Laser‐Assisted Processing and Modification of Bioactive Glasses: A Review

open access: yesAdvanced Healthcare Materials, EarlyView.
Laser technologies provide powerful tools to process and transform bioactive glasses for advanced biomedical applications. This review discusses laser‐matter interaction mechanisms, laser surface engineering, and laser‐assisted fabrication of scaffolds and nanofibers.
Antonio Riveiro   +8 more
wiley   +1 more source

Methodology for Asynchronous Motor Impedance Measurement by Using Higher Order Harmonics

open access: yesEnergies, 2020
The control methods of asynchronous motors have changed during past decades. In the past, asynchronous motors were connected to grid directly. Later, thyristors as switching element-based frequency converters for asynchronous motors have appeared. Today,
Karolis Dambrauskas   +4 more
doaj   +1 more source

Understanding the Effects of Conductive Polymer Electrode Coating on Recorded Neural Signals

open access: yesAdvanced Healthcare Materials, EarlyView.
Conductive polymer coatings are widely explored to improve the quality of signals recorded with chronically implanted neural electrodes, offering enhanced biocompatibility along with reduced electrode impedance. Combining computational modelling and data from PEDOT:PTS coated and PtIr electrodes in rats, we show that improvements in signal quality with
Karthik Sridhar   +4 more
wiley   +1 more source

Nonlinear dynamical response of interacting bosons to synthetic electric field

open access: yesPhysical Review Research, 2020
We theoretically study the nonlinear response of interacting neutral bosonic gas in a synthetically driven one-dimensional optical lattice. In particular, we examine the bosonic analog of electronic higher harmonic generation in a strong time-dependent ...
Arko Roy, Soumya Bera, Kush Saha
doaj   +1 more source

Higher harmonic resonance of duffing-type nonlinear systems excited by a force including higher harmonics.

open access: yesTRANSACTIONS OF THE JAPAN SOCIETY OF MECHANICAL ENGINEERS Series C, 1985
高調波ひずみをもつ外力が非線形の高調波共振応答におよぼす影響を調べるため,Duffing形の一自由度系に三次の高調波を含む外力が作用する場合の三次の高調波共振応答を求めた.調和バランス法による数値解析の結果,外力高調波成分の値により応答曲線は3種類に分類されることがわかり,それらの形の発生に対する系パラメータ依存性を明らかにした.また,RKG法による直接数値解とも比較し,結果の妥当性を確認した.
openaire   +3 more sources

3D super-resolved in vitro multiphoton microscopy by saturation of excitation

open access: yes, 2015
We demonstrate a significant resolution enhancement beyond the conventional limit in multiphoton microscopy (MPM) using saturated excitation of fluorescence.
Bouwens, Arno   +8 more
core   +1 more source

PolyGraph – Flexible, Biocompatible & Electrically Optimized Graphene‐Polymer Composites for Next‐Generation Neural Interfaces

open access: yesAdvanced Healthcare Materials, EarlyView.
PolyGraph, a flexible graphene‐polycaprolactone nanocomposite, unites conductivity, biocompatibility, and processability for next‐generation neural interfaces. Fabricated into microneedle arrays with ultra‐flexible backings, PolyGraph enables bidirectional neuronal recording and stimulation in brain tissue, advancing brain‐computer interface (BCI) and ...
Jack Maughan   +12 more
wiley   +1 more source

Copper–Collagen Interactions Regulate the Mechanical and Invasive Properties of Tumor Spheroids

open access: yesAdvanced Healthcare Materials, EarlyView.
Ionic copper is investigated as a modulator of tumor spheroid growth and invasiveness in a 3D microfluidic glioblastoma model. Copper exposure alters metabolic activity, cytoskeletal organization, protrusion dynamics, and EMT‐related phenotypes in a dose‐ and timing‐dependent manner, revealing how copper bioavailability shapes tumor aggressiveness ...
Paula Guerrero‐López   +5 more
wiley   +1 more source

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