Results 41 to 50 of about 14,370 (236)

Bacteria‐Responsive Nanostructured Drug Delivery Systems for Targeted Antimicrobial Therapy

Advanced Materials, EarlyView.
Bacteria‐responsive nanocarriers are designed to release antimicrobials only in the presence of infection‐specific cues. This selective activation ensures drug release precisely at the site of infection, avoiding premature or indiscriminate release, and enhancing efficacy.
Guillermo Landa, Gracia Mendoza, Silvia Irusta, Manuel Arruebo   +3 more
wiley   +1 more source

RESEARCH ON CBN GRINDING WHEEL PERFORMANCE MONITORING METHOD BASED ON SHANNON ENTROPY AND ACOUSTIC EMISSION SIGNAL (MT)

Jixie qiangdu, 2023
In order to effectively evaluate the grinding performance of CBN（Cubic Boron Nitride） grinding wheel in the grinding process, a monitoring method of CBN grinding wheel performance was proposed based on Shannon entropy theory and acoustic emission signal.
TAN YongMin, SHI Zhan, CHI YuLun, GU JiaJian   +3 more
doaj  

Colossal Photovoltaic Current in Ferroelectric Oxide by Constructing Defect Band

Advanced Science, EarlyView.
Colossal photovoltaic current density of 34.36 mA/cm2 under 375 nm illumination has been achieved in the Pb‐deficient PbTiO3 film. The ultraviolet photoresponsivity surpasses that of all reported ferroelectric materials. This enhancement is attributed to the junction effect between the Pb‐deficient and non‐defective layers.
Yiran Sun, Zhenbang Dai, Xingzhong Cao, Peng Zhang, Chen Lin, Zihang Huang, Ruian Zhang, Yi Fu, Xuanyu Jiang, He Tian, Jingjing Xue, Kaifeng Wu, Junhui Wang, Tianqi Deng, Andrew M. Rappe, Gaorong Han, Zhaohui Ren   +16 more
wiley   +1 more source

Thermomechanical and tribological properties of spark plasma sintered bearing steel/cBN(Ni) composites for engineering applications

Journal of Materials Research and Technology, 2020
This study attempt to investigate microstructural, thermomechanical and tribological properties of low-temperature sintered cBN and Ni-coated cBN reinforced bearing steel composites. Ultrasonic probe sonication and spark plasma sintering (SPS) at 900 and
Akeem Yusuf Adesina, Abbas Saeed Hakeem, Muhammad Umar Azam, Bilal Anjum Ahmed, Almigdad B. Ibrahim, Muhammad Ali Ehsan, Ahmad A. Sorour   +6 more
doaj   +1 more source

Micro/Nano Indentation Testing of Spark Plasma Sintered Al₂O₃ + ZrO₂ + cBN Ceramics

Ceramics, 2021
Al2O3 + 30 vol% ZrO2 matrix composites with 20 and 30 vol% cBN have been prepared with the optimized processing route, using spark plasma sintering (SPS) at temperatures of 1400 °C and 1250 °C.
Richard Sedlák, Michal Ivor, Piotr Klimczyk, Piotr Wyzga, Marcin Podsiadlo, Marek Vojtko, Ján Dusza   +6 more
doaj   +1 more source

Supramolecular Host‐Guest Complexation Dynamics by Cost‐Efficient Electronic Structure Methods

Chemistry – A European Journal, EarlyView.
We present a cost‐effective multilevel workflow for the kinetic profiling of host–guest systems, illustrated with cucurbit[6]uril and alkylammonium cations. The method combines rapid docking and reaction path searches at the semi‐empirical level, with refinement of the results using modern density functional theory, accurately reproducing experiment ...
Thomas Gasevic, Christoph Plett, Lukas Wittmann, Iago Neira, Carlos Peinador, Marcos D. García, Andreas Hansen   +6 more
wiley   +1 more source

Analysis of Cubic Boron Nitride Single Crystal Defects Growth under High Temperature and High Pressure

Journal of Chemistry, 2020
Cubic boron nitride (cBN) single crystals are synthesized under high temperature and high pressure in the Li-based system. The growth defects on hexagonal and triangular (111) surfaces of cBN single crystals after rapid cooling are discussed systemically
Lichao Cai, Bin Xu, Meizhe Lv, Feng Jia, Xingdong Yuan   +4 more
doaj   +1 more source

Recreational Drug Use at a Music Festival: A Dual Approach Using Hair Biomarkers Analysis and Participant Self‐Reported Drug Use

Drug Testing and Analysis, EarlyView.
Combined self‐report and hair analysis in festival attendees (n = 249) revealed substantial discrepancies in drug use reporting, particularly for stimulants and dissociatives. This integrated approach enhances detection of poly‐drug use and provides a more reliable basis for monitoring and harm‐reduction strategies.
A. Y. Simão, T. Rosado, M. Barroso, M. Andraus, E. Gallardo   +4 more
wiley   +1 more source

Exploring Cerumen as an Alternative Matrix for Drug Detection and Quantification: Method Development and Application in Clinical Samples

Drug Testing and Analysis, EarlyView.
An LC–MS/MS method was developed for the detection of 33 psychoactive medications in cerumen (earwax) and applied to the samples of 60 psychiatric inpatient volunteers. The findings highlighted the utility of cerumen as an innovative biospecimen in clinical toxicological analysis.
Dimitrios Phaedon Kevrekidis, Helen G. Gika, Georgios Panagiotoglou, Eleni Parlapani, Pavlos Pavlidis, Nikolaos Raikos   +5 more
wiley   +1 more source

Modulation of human platelet activation and in vivo vascular thrombosis by columbianadin: regulation by integrin αIIbβ3 inside-out but not outside-in signals

Journal of Biomedical Science, 2020
Background Columbianadin (CBN) is one of the main coumarin constituents isolated from Angelica pubescens. The pharmacological value of CBN is well demonstrated, especially in the prevention of several cancers and analgesic activity.
Shaw-Min Hou, Chih-Wei Hsia, Cheng-Lin Tsai, Chih-Hsuan Hsia, Thanasekaran Jayakumar, Marappan Velusamy, Joen-Rong Sheu   +6 more
doaj   +1 more source