Results 81 to 90 of about 6,970,357 (236)

Counterion Dependent Side‐Chain Relaxation Stiffens a Chemically Doped Thienothiophene Copolymer

Advanced Functional Materials, EarlyView.
Oxidation of a thienothiophene copolymer, p(g3TT‐T2), via different doping strategies and dopant molecules resulted in materials with similar oxidation levels and a high electrical conductivity of ≈100 S cm−1. However, mechanical properties varied significantly, with sub‐glass transition temperatures and elastic moduli spanning from –44°C to –3°C and ...
Mariavittoria Craighero, Meghna Jha, Elsa Veronica Flores‐Vela, Joost Kimpel, Andreas Schaefer, Jiali Guo, Jesika Asatryan, Alberto Peinador Veiga, Shuichi Haraguchi, Per‐Anders Carlsson, Jaime Martín, Mariano Campoy‐Quiles, Christian Müller   +12 more
wiley   +1 more source

Automated assessment of tumor spheroids via electrical impedance spectroscopy

Sensing and Bio-Sensing Research
Three-dimensional tumor spheroids (3D-TS) provide a relevant in vitro model that more closely mimics human tumor biology than traditional cell cultures.
Ahmed Khattab, Ruth Grabowski, Ha Un Chung, Tobias Schmidt, Mai Thu Bui, Christian Schmees, Günther Michael Zeck   +6 more
doaj   +1 more source

From Food to Power: Hydrogel Thermoelectrics for Ingestible Electronics

Advanced Functional Materials, EarlyView.
We introduce a fully edible thermoelectric–electrochromic platform that harvests heat from food and converts it into a visible color change. N‐type and p‐type hydrogel thermoelectric generators connected in series power anthocyanin‐based electrochromic displays, demonstrating the feasibility of safe, biodegradable, ingestible systems for on‐food ...
Antonia Georgopoulou, Bokeon Kwak, Dario Floreano, Esther Amstad   +3 more
wiley   +1 more source

Impedance analysis and single ion channel recordings on pore-suspending lipid bilayers based on highly ordered pore arrays [PDF]

, 2006
Ion channels are one of the main drug targets and are in the focus of various membrane biosensor applications and drug screening assays. The aim of this thesis was to develop and characterize a novel membrane system suspending highly ordered porous ...
Römer, Winfried
core   +1 more source

Monitoring Rose Black Spot Disease Using Electrical Impedance Spectroscopy

Agronomy
Rosa hybrida is a globally important ornamental species, but its economic and aesthetic value is often compromised by rose black spot disease (Diplocarpon rosae). Effective monitoring and early detection are essential for disease management.
Tianyi Ma, Dongyu Tan, Rui Wang, Tianyi Li, Yiying Wang, Guilin Shan, Ji Qian, Bao Di   +7 more
doaj   +1 more source

Grain size effect on the electrical response of SnO2 thin and thick film gas sensors

Materials Research, 2009
Porous nano and micro crystalline tin oxide films were deposited by RF Magnetron Sputtering and doctor blade techniques, respectively. Electrical resistance and impedance spectroscopy measurements, as a function of temperature and atmosphere, were ...
Raluca Savu, Miguel Adolfo Ponce, Ednan Joanni, Paulo Roberto Bueno, Miriam Castro, Mario Cilense, José Arana Varela, Elson Longo   +7 more
doaj   +1 more source

Intermediate Resistive State in Wafer‐Scale Vertical MoS2 Memristors Through Lateral Silver Filament Growth for Artificial Synapse Applications

Advanced Functional Materials, EarlyView.
In MOCVD MoS2 memristors, a current compliance‐regulated Ag filament mechanism is revealed. The filament ruptures spontaneously during volatile switching, while subsequent growth proceeds vertically through the MoS2 layers and then laterally along the van der Waals gaps during nonvolatile switching.
Yuan Fa, Milan Buttberg, Ke Ran, Rana Walied Ahmad, Dennis Braun, Lukas Völkel, Jimin Lee, Sofía Cruces, Bart Macco, Bárbara Canto, Holger Lerch, Thorsten Wahlbrink, Holger Kalisch, Michael Heuken, Andrei Vescan, Joachim Mayer, Zhenxing Wang, Ilia Valov, Stephan Menzel, Max C. Lemme   +19 more
wiley   +1 more source

Ventilation inhomogeneity in patients with cystic fibrosis measured by electrical impedance tomography [PDF]

, 2012
Objective: The distribution of ventilation within the lung is inhomogeneous. We hypothesized that the degree of inhomogeneity in patients with cystic fibrosis (CF) differs from that in healthy subjects.
Zhao, Zhanqi, Mueller-Lisse, Ullrich, Moeller, Knut, Fischer, Rainald   +3 more
core   +1 more source

Study of the La0.2235 Pr0.2235 Nd0.2235 Sr0.33 MnO3 ceramic by X ray diffraction and impedance spectroscopy

EPJ Web of Conferences, 2012
The La0.2235 Pr0.2235 Nd0.2235 Sr0.33 MnO3 (LPNSM) ceramic has been obtained from oxides by sintering in air. The electrical properties of this material have been studied using ac impedance spectroscopy technique over a wide range of temperatures and ...
Khirouni K., Dhahri J., Farhat N., Dhahri A., Rhouma F. I. H.   +4 more
doaj   +1 more source

Optical Imaging of Intrinsic Neural Signals and Simultaneous MicroECoG Recording Using Polyimide Implants

Proceedings, 2017
This paper presents the simultaneous use of intrinsic optical signal imaging (iOS) and micro-electrocorticography (μECoG) techniques by introducing a transparent polymer based microelectrode array into the optical recording chamber used in vivo ...
Anita Zátonyi, Zsolt Borhegyi, Dorottya Cserpán, Zoltán Somogyvári, Mohit Srivastava, Zoltán Kisvárday, Zoltán Fekete   +6 more
doaj   +1 more source