Results 31 to 40 of about 26,618 (208)

Light‐Induced Field‐Tunneling Synapses in Solution‐Processed Van Der Waals Heterostructures for Scalable, Retina‐Inspired Optical Sensing

Advanced Functional Materials, EarlyView.
A scalable, solution‐processed WSe2/ZrO2‐x van der Waals heterostructure realizes a light‐induced field‐tunneling synapse (LIFTS) that activates exclusively under bright illumination, emulating the photopic adaptation of the human retina at the device level.
Kijeong Nam, Jihyun Kim, Soobeen Ji, In Soo Kim, Sejin Kim, Eungseon Yeon, Do Kyung Hwang, Iva Plutnarová, Zdeněk Sofer, Sang Min Won, Joohoon Kang   +10 more
wiley   +1 more source

DISSOLUTION BEHAVIOUR OF PROPYLTHIOURACIL POLYVINYLPYRROLIDONE SOLID DISPERSIONS [PDF]

Bulletin of Pharmaceutical Sciences. Assiut University, 1988
The objective of the present study was to investigate the influence of variation of the molecular weight and the proportion of polyvinylpyrrolidone (PVPs) on the dissolution of propylthiouracil (Pt) as a model of sparingly soluble drugs dispersed in ...
A. Aboutaleb, A. El-Sayed, S. Abdel-Rahman   +2 more
doaj   +1 more source

Formation mechanisms of sub-micron pharmaceutical composite particles derived from far- and near-field Raman microscopy

Journal of Pharmaceutical Analysis, 2021
Surface enhanced Raman spectroscopy (SERS) and confocal Raman microscopy are applied to investigate the structure and the molecular arrangement of sub-micron furosemide and polyvinylpyrrolidone (furosemide/PVP) particles produced by spray flash ...
Jakob Hübner, Jean-Baptiste Coty, Yan Busby, Denis Spitzer   +3 more
doaj   +1 more source

Advances in Solution‐Processed Textile Triboelectric Nanogenerators: Ink Formation, Processing Strategies, Applications, and Challenges

Advanced Functional Materials, EarlyView.
Advanced ink systems for solution‐processed textile triboelectric nanogenerators are systematically summarized, spanning conductive, tribo‐negative, and tribo‐positive layers. By connecting ink chemistry, deposition methods, and device function, the present review reveals the key governing principles of solution development and highlights practical ...
Xinlong Sun, Stephen Beeby
wiley   +1 more source

Genetically Programmed Shape‐Morphing of Engineered Living Materials

Advanced Functional Materials, EarlyView.
Here, bacterial and mammalian engineered living materials (ELMs) are presented, in which living cells direct genetically programmed and enzymatically mediated shape‐morphing. The resulting deformation and shape‐recovery can be actuated in a genetically controlled manner by an ELM incorporating out‐of‐equilibrium counteracting biochemical reactions with
Jan Becker, Yuchen Liu, Miguel Baños, Rosanne Schmachtenberg, Mahmudul Hasan, Claudia Fink‐Straube, Luai R. Khoury, Wilfried Weber   +7 more
wiley   +1 more source

Effect of Green Gram Husk Nanocellulose on Banana Fiber Composite

Journal of Natural Fibers, 2019
Nanocellulose is a significant bio entity in the present-day applications of nanocomposites. In this regard, the present work focuses on fabrication of green gram husk cellulose-based hybrid nanocomposites.
Mounika Movva, Ravindra Kommineni
doaj   +1 more source

Heterogeneous Solvent Dielectric Relaxation in Polymer Solutions of Water and Alcohols

Frontiers in Physics, 2020
The dynamics of polymer solutions are heterogeneous. The different molecule sizes and structures cause different mobilities of polymers and solvents. Recently, regarding the heterogeneity of water, two dielectric relaxation processes of water were argued
Kaito Sasaki, Kenta Bandai, Masanobu Takatsuka, Mitsuki Fujii, Minato Takagi, Rio Kita, Rio Kita, Shin Yagihara, Hiroshi Kimura, Hiroshi Kimura, Naoki Shinyashiki, Naoki Shinyashiki   +11 more
doaj   +1 more source

Estudos metodológicos de nanopartículas catalíticas de Ag-PVP a partir da análise multivariada, aplicadas á catálise de redução de compostos nitroaromáticos [PDF]

, 2012
Dissertação (mestrado) - Universidade Federal de Santa Catarina, Centro de Ciências Físicas e Matemáticas. Programa de Pós-Graduação em QuímicaO presente trabalho relata o preparo, caracterização e estudo da atividade catalítica de nanopartículas de ...
Elias, Welman Curi
core  

Hopping‐Mediated Zero‐Bias Photocharge Retention in Solution‐Processed Van Der Waals Heterostructures

Advanced Functional Materials, EarlyView.
Liquid–liquid interface assembly enables the fabrication of solution‐processed MoS2 and WSe2 centimeter‐scale, nanometer‐thick type‐II heterostructures on paper. Interfacial charge separation and hopping‐limited recombination produce rectification and persistent photocharge retention at zero bias.
Aniello Pelella, Andrea Sessa, Yi‐Chen Tsai, Xuzhao Liu, Abdul Mannan, George Greaves, Yahya Saboon, Ben Spencer, Antonio Di Bartolomeo, Cinzia Casiraghi, Jessica Boland, Alessandro Grillo   +11 more
wiley   +1 more source

Designing a simple electrospinning device to produce nanofibers from polymeric and organic sources

Baghdad Journal of Biochemistry and Applied Biological Sciences
Electrospinning is one of the important technologies that has contributed a lot to the development of science. Electrospinning usually requires an electrical voltage generator with a value of 10–60 kilovolts, and this voltage requires expensive and ...
joseph shenekji, Kamar Shayah, Angela Sarkis, Naya Zghen Kalala, Alice keakaty   +4 more
doaj   +1 more source