Results 71 to 80 of about 79,585 (266)

Mimicking Silent Synapse Recruitment: A SiOx/Cu‐Pancake Memristive Device For Analog Neuromorphic Computing

Advanced Functional Materials, EarlyView.
Electroforming‐free TiN/SiOx/Cu/SiOx/TiN memristive devices exploit pancake‐like Cu nanoparticles embedded in a SiOx double layer to create a heterogeneous Schottky‐barrier landscape. Under bias, oxygen‐vacancy redistribution progressively lowers local barriers and recruits initially inactive Cu‐PC pathways into a parallel conduction ensemble, enabling
Rouven Lamprecht, Ole Gronenberg, Sahitya Yarragolla, Tobias Gergs, Richard Marquardt, Victor Witte, Jürgen Carstensen, George Popkirov, Jan Trieschmann, Lorenz Kienle, Hermann Kohlstedt   +10 more
wiley   +1 more source

Biogenic fabrication and characterization of silver nanoparticles using aqueous-ethanolic extract of lichen (Usnea longissima) and their antimicrobial activity

Biomaterials Research, 2018
Background Biogenic fabrication of silver nanoparticles from naturally occurring biomaterials provides an alternative, eco-friendly and cost-effective means of obtaining nanoparticles. It is a favourite pursuit of all scientists and has gained popularity
Khwaja Salahuddin Siddiqi, M. Rashid, A. Rahman, Tajuddin, Azamal Husen, Sumbul Rehman   +5 more
doaj   +1 more source

Fusogenic RNA Nanomodules for Fusion‐Mediated and Multiplexed siRNA Delivery

Advanced Functional Materials, EarlyView.
A fusogenic lipid‐layered RNA nanomodules (L‐CRAMs) enable high‐capacity and long‐lasting siRNA delivery through membrane fusion. These nanomodules carry exceptionally large siRNA payloads, avoid conventional endosomal uptake, and release multiple functional siRNAs through Dicer‐mediated processing.
Sunghyun Moon, Iksoo Jang, Taehyeon Kim, Nayoung Yoon, Kyuha Yum, Jong Bum Lee   +5 more
wiley   +1 more source

PVP-coated, negatively charged silver nanoparticles: A multi-center study of their physicochemical characteristics, cell culture and in vivo experiments

Beilstein Journal of Nanotechnology, 2014
PVP-capped silver nanoparticles with a diameter of the metallic core of 70 nm, a hydrodynamic diameter of 120 nm and a zeta potential of −20 mV were prepared and investigated with regard to their biological activity.
Sebastian Ahlberg, Alexandra Antonopulos, Jörg Diendorf, Ralf Dringen, Matthias Epple, Rebekka Flöck, Wolfgang Goedecke, Christina Graf, Nadine Haberl, Jens Helmlinger, Fabian Herzog, Frederike Heuer, Stephanie Hirn, Christian Johannes, Stefanie Kittler, Manfred Köller, Katrin Korn, Wolfgang G. Kreyling, Fritz Krombach, Jürgen Lademann, Kateryna Loza, Eva M. Luther, Marcelina Malissek, Martina C. Meinke, Daniel Nordmeyer, Anne Pailliart, Jörg Raabe, Fiorenza Rancan, Barbara Rothen-Rutishauser, Eckart Rühl, Carsten Schleh, Andreas Seibel, Christina Sengstock, Lennart Treuel, Annika Vogt, Katrin Weber, Reinhard Zellner   +36 more
doaj   +1 more source

Silver-based nanoparticles: synthesis and characterization of bimetallic silver-platinum and silver-gold nanoparticles

, 2018
Nanomaterialien finden heutzutage eine sehr weite Verbreitung. Sie werden beispielsweise sowohl in der Elektrotechnik, in Brennstoffzellen, in der (Photo-)Katalyse als auch in Kosmetika oder in der Medizin eingesetzt. Nanopartikel sind sehr interessant, weil sie andere physikalische und chemische Eigenschaften, wie Schmelzverhalten, Färbungen und ...
openaire   +3 more sources

Magnesium‐Based Transient Bioelectronics, Bio‐Optics and Bio‐Scaffolds

Advanced Functional Materials, EarlyView.
This paper reviews the state of the art and recent advances in magnesium‐based thin‐film, foils, and scaffolds for applications in transient bio‐optics, bioelectronics and tissue engineering. The design principles, fabrication methods, material properties, and integration strategies are discussed in detail.
Massimo Mariello, Yves Leterrier
wiley   +1 more source

Graphene Oxide in a Composite with Silver Nanoparticles Reduces the Fibroblast and Endothelial Cell Cytotoxicity of an Antibacterial Nanoplatform

Nanoscale Research Letters, 2019
Antibacterial surfaces coated with nanomaterials, including silver nanoparticles, are considered effective alternative antimicrobial agents that can be used instead of antibiotics and chemical agents.
Mateusz Wierzbicki, Sławomir Jaworski, Ewa Sawosz, Anna Jung, Grzegorz Gielerak, Henryk Jaremek, Witold Łojkowski, Bartosz Woźniak, Leszek Stobiński, Artur Małolepszy, André Chwalibog   +10 more
doaj   +1 more source

Mycosynthesis of silver nanoparticles and their characterization

MethodsX, 2018
Mycosynthesis deal with an energy-saving and eco-friendly process intended for extracellular synthesis of AgNPs, by means of cell-free filtrates of fungi Aspergillus niger and Fusarium semitectum as reducing agents. Optimization of different parameters during biosynthetic process demonstrated diverse property on production rate, the size, distribution,
M. Madakka, N. Jayaraju, N. Rajesh
openaire   +3 more sources

Synergistic Solar Interfacial Evaporation and Photocatalysis Enabled by a Hierarchical Porous Hydrogel Reactor

Advanced Functional Materials, EarlyView.
A tree‐inspired hydrogel interfacial reactor couples solar evaporation with photocatalysis for simultaneous desalination and waste water treatment. The bilayer design achieves 2.14 kg·m−2·h−1 evaporation rate with 79% dye degradation under one sun, demonstrating that photothermal heating and evaporation induced pollutant enrichment create a self ...
Yan Zhao, Xiaolong Ma, Zihong Wu, Muhammad Amjad, Dongsheng Wen   +4 more
wiley   +1 more source

Atmospheric Corrosion of Silver and Silver Nanoparticles

Corrosion and Materials Degradation, 2022
Even though it is a noble metal, silver will corrode in ambient atmospheres, predominantly by reacting with sulfur-containing gases such as hydrogen sulfide (H2S) and carbonyl sulfide (OCS) to form the silver sulfide (Ag2S) acanthite. Other aspects of the environment, such as relative humidity and the presence of oxidizing species, also play a critical
openaire   +2 more sources