Results 71 to 80 of about 322,109 (297)

Impact of Interlayer Optimization on the Performance of Flexible, Self‐Powered Organic Photodetectors for Ambient Light‐Based PPG Sensing

Advanced Materials Technologies, EarlyView.
This study showcases how advanced interlayers combined with PH1000 anodes on flexible PET substrates transform the performance of self‐powered organic photodetectors (OPDs). The developed self‐powered flexible OPDs with their excellent mechanical durability, high responsivity, and specific detectivity demonstrate accurate heart rate monitoring in ...
Hossein Anabestani, Zeljko Zilic, Sharmistha Bhadra   +2 more
wiley   +1 more source

Outdoor Stability of 518 cm2 Active Area Screen‐Printed Mesoscopic Carbon‐Based Perovskite Solar Modules Over 12 Months

Advanced Materials Technologies, EarlyView.
Mesoscopic carbon‐based perovskite solar cells (C‐PSCs) offer a pathway to stable, scalable, low‐cost photovoltaics via commercially mature fabrication methods. While their potential lifespan has been demonstrated under standardized conditions, few studies examine the behavior of large‐area modules exposed to real‐world environments. Here, 12 months of
Sarah‐Jane Potts, Rebecca Bolton, Carys Worsley, Tom Griffiths, Luke Ardolino, Kathryn Lacey, Ershad Parvazian, Eifion Jewell, Trystan Watson   +8 more
wiley   +1 more source

Millisecond‐Switching Dual‐Band/Dual‐Polarization Ka‐Band Wavefront Control Enabled by a Complementary Liquid‐Crystal Metasurface

Advanced Materials Technologies, EarlyView.
An LCD‐compatible complementary liquid‐crystal metasurface delivers dual‐band, dual‐polarized Ka‐band wavefront control with millisecond switching via a 10‐µm LC gap. Interlaced patch/slot pairs enable independent phase tuning at 28 and 38 GHz, while strategic 45° slot rotation suppresses parasitic resonances. Measurements on a 160 × 160‐cell prototype
Daehyeon Kim, Donggeun An, Hyunjae Shin, Youngno Youn, Wonbin Hong   +4 more
wiley   +1 more source

Efficient Non‐Fullerene Acceptor‐Based Organic Photodetectors Achieved by Reduced Deep Traps in Highly Intermixed Co‐Evaporated Bulk‐Heterojunction Blends

Advanced Optical Materials, EarlyView.
Fullerene acceptor‐based organic photodetectors show sub‐optimal device performance due to deep trap states originating from undesirable adduct formation between donor and acceptor with unfavorable bulk‐heterojunction morphology. This work demonstrates subphthalocyanine‐based non‐fullerene acceptor (like Cl6‐SubPc) has great potential for trap‐free ...
Song Yi Park, Chiara Labanti, Feifei Fang, Aniket Rana, Emily J. Yang, Yifan Dong, Jeong‐Il Park, Jisoo Shin, Kyung‐Bae Park, Sungyoung Yun, James R. Durrant, Ji‐Seon Kim   +11 more
wiley   +1 more source

Sub‐THz Multifunctional Metasurfaces for Independent Transmission or Reflection Phase Manipulation

Advanced Optical Materials, EarlyView.
This article presents a rigorous analysis, design, and characterization of a novel sub‐THz metalens and reflective metasurface. Unlike bulky optical systems, the proposed thin, planar metasurface enables dual‐band full‐space wavefront control, via low‐loss transmission and reflection phase tuning, offering compact integration and improved ...
Bilal Ouardi, Orestis Koutsos, Olivier de Sagazan, Malo Robin, Ronan Sauleau, Antonio Clemente   +5 more
wiley   +1 more source

Hemodynamic evaluation of a new pulsatile flow generation method in cardiopulmonary bypass system

Вестник трансплантологии и искусственных органов, 2019
This paper proposes a new method of generating pulsatile flow using non-pulsating pumps (NPP) without modulating the rotation speed of the pump rotor. At the initial stage, this method was proposed for NPP-based cardiopulmonary bypass (CPB) systems.
A. S. Buchnev, A. P. Kuleshov, A. A. Drobyshev, G. P. Itkin   +3 more
doaj   +1 more source

Minimally Invasive Chemical Biopsy Needle with Self‐Wettable Extraction Phase For In Vivo Tissue Sampling During Medical Procedures

Advanced Science, EarlyView.
A new tissue sampling device using an acupuncture needle with bio‐compatible extraction sorbents in the recessed section is developed. The coating material using self‐wettable particles doesn't require solvent activation after sterilization. This device is applied for the anti‐cancer drug concentration monitoring during the in vivo lung perfusion ...
Runshan Will Jiang, Wei Zhou, Marcelo Cypel, Todd L. Demmy, Gal Shafirstein, Guillermo Garza, Emily Gawrys, Joanna Bogusiewicz, Barbara Bojko, Janusz Pawliszyn   +9 more
wiley   +1 more source

Electragel for Advanced Static Charge Mitigation and Energy Harvesting

Advanced Science, EarlyView.
Electragel is a transformative material that scavenges static charges for simultaneous dissipation and electricity generation, enabling dual‐purpose static control and energy harvesting across industries while shifting paradigms from mitigation to sustainable utilization of electrostatic energy. Abstract The heightened sensitivity of modern electronics
Irum Firdous, Muhammad Fahim, Kaixin Lin, Tsz Chung Ho, Yihao Zhu, Chi Yan Tso   +5 more
wiley   +1 more source

Adult-onset neurocutaneous melanosis with Dandy–Walker malformation

Formosan Journal of Surgery, 2018
Neurocutaneous melanosis (NCM) is characterized by diffuse or focal proliferation of melanin-producing cells over the skin or leptomeninges. Even without malignant transformation, the prognosis is poor after symptomatic progression of NCM, resulting from
Ting-Wei Chang, Po-Chuan Hsieh, Zhuo-Hao Liu, Po-Hsun Tu   +3 more
doaj   +1 more source

A Three‐Phase Electrostatic Clutch with Variable Mechanical Impedance Control for Soft Robotic Systems

Advanced Science, EarlyView.
The research introduces a three‐phase electrostatic (ES) clutch with variable mechanical impedance control, specifically designed to enable continuous and precise friction modulation, thereby reducing both force degradation and oscillatory motion. This method effectively resolves conventional ES clutch issues, such as residual charge accumulation and ...
Dongyoung Lee, Heejin Yu, Joonbum Bae
wiley   +1 more source