Results 41 to 50 of about 21,861 (248)

Determination of the fraction of paramagnetic centers not-fulfilling the Curie law in coal macerals by the two-temperature EPR measurement method

Nukleonika, 2015
Two-temperature electron paramagnetic resonance (EPR) measurements, applied to determine the relative contributions of paramagnetic centers – fulfilling and not-fulfilling the Curie law, were carried out.
Słowik Grzegorz P., Więckowski Andrzej B.   +1 more
doaj   +1 more source

Design and Performance of a New Multifunction X-band EPR Spectrometer

Chinese Journal of Magnetic Resonance, 2022
A new multifunction X-band electron paramagnetic resonance (EPR) spectrometer is designed and produced, which is equipped with a new operation system based on the EPR control and readout system (CRS).
Yu HE, Zhi-fu SHI, Xin-Xing ZHAO, Tao SU, Ji-hu SU   +4 more
doaj   +1 more source

2D MOF with Intrinsic Porosity for Colorimetric Volatile Organic Compounds (VOCs) Detection

Advanced Materials, EarlyView.
An uncommon 2D MOF with intrinsic in‐plane porosity that can be mechanically exfoliated undergoes a distinct and reversible colour change upon exposure to various volatile organic compounds. ABSTRACT In this work, we report an uncommon 2D metal–organic framework (MOF) with intrinsic in‐plane porosity that undergoes a distinct and reversible colour ...
Sergio R. Gamarra, Alberto Fernández‐Alarcón, Joaquín Calbo, Enrique Ortí, Guillermo Mínguez Espallargas   +4 more
wiley   +1 more source

Decoupling Activation and Preservation: Architectural Design Principles of Organic Frameworks for Selective Photocatalytic Methane Oxidation

Advanced Materials, EarlyView.
Selective methane (CH4) photooxidation emerges from architectural decoupling of activation and preservation. Programmable organic semiconductor frameworks spatially organize oxidative flux and intermediate residence, separating reaction zones from product domains to synchronize activation strength with stabilization and establish a selective oxidation ...
Minxian Zhang, Jie He, Jinqiang Zhang, Hongqi Sun, Shaobin Wang, Xiaoguang Duan   +5 more
wiley   +1 more source

Comparative evaluation of melanin content in melanosomes and melanolipofuscin granules from the human retinal pigment epithelium cells

Офтальмохирургия, 2018
Purpose. Comparative study of the melanin content in melanosomes and melanolipofuscin granules from cells of the retinal pigment epithelium of the human eye. Material and methods.
N. L. Sakina, A. E. Dontsov, E. N. Degtyarev, A. L. Kovarsky, P. M. Arbukhanova, S. A. Borzenok, M. A. Ostrovsky   +6 more
doaj   +1 more source

Recent Advances in Ferrite‐Based Materials for Biomedical Applications: A Comprehensive Review

Advanced Materials, EarlyView.
Ferrite nanoplatforms are presented as tunable biomedical materials in which synthesis control, cation engineering, defect/morphology regulation, and surface functionalization govern structure–property–bioactivity relationships. These design strategies enable multifunctional applications including MRI contrast, magnetic hyperthermia, targeted drug ...
Pramod D. Mhase, Varsha C. Pujari, Akash V. Fulari, Sunil M. Patange, Sean Li, Danyang Wang, Sagar E. Shirsath   +6 more
wiley   +1 more source

Characterization of Paramagnetic Species in Seeds by Electron Paramagnetic Resonance (EPR)

RE&PQJ
Paramagnetic species were characterized in the seeds of radish wild, rice, mustard, wheat, oats, sorghum, sunflower, soybean, cotton, beans, maize and barley by Electron Paramagnetic Resonance (EPR). Some iron complexes such as goethite, hematite, magnetite, and ferrihydrite, normally present in the soil, were also investigated by EPR, since their ...
null V. M. Barbana, null C. L. B. Guedes, null E. Di Mauro   +2 more
openaire   +1 more source

Angstrom‐Scale Confined Ion Sieve and Accelerator for Efficient Aqueous Zinc Batteries

Advanced Materials, EarlyView.
An angstrom‐scale confined ion accelerator strategy is proposed for ultra‐stable aqueous Zn anodes. Selective and precise transport of hydrated Zn(H2O)62+, Zn2+ cations, H2O molecules, and SO42− anions is achieved by in‐plane atomic Ti vacancies and angstrom‐scale interlayer free spacing within the Ti0.87O2 interfacial layer, leading to homogeneous Zn ...
Xing Peng, Caichao Ye, Yingqiang Li, Zhihang Liu, Kunxi Luan, Jinbo Fan, Honglan Huang, Chao Liu, Na Shen, Zhen Hou, Wenyao Zhang, Yongsheng Fu, Mingzhe Chen, Linfeng Hu, Pan Xiong, Guoxiu Wang, Junwu Zhu   +16 more
wiley   +1 more source

Clinical Electron Paramagnetic Resonance (EPR) Oximetry Using India Ink [PDF]

, 2009
Electron paramagnetic resonance (EPR) oximetry can be used to provide direct absolute measurements of pO(2) in living tissue using India ink as an O(2) reporter. In vivo measurements are made using low frequency (1.2 GHz) EPR spectroscopy and surface loop resonators, which enable measurements to be made at superficial sites through a non-invasive ...
Benjamin B, Williams, Nadeem, Khan, Bassem, Zaki, Alan, Hartford, Marc S, Ernstoff, Harold M, Swartz   +5 more
openaire   +2 more sources

Cu‐Pd Dual Single Atoms Promoting Selective CO2 Photoreduction to C2 Products in Seawater

Advanced Materials, EarlyView.
Cu and Pd dual single atoms anchored on TiO2 cooperatively enhance C─C coupling during CO2 photoreduction in seawater. Under xenon‐light irradiation and without a sacrificial reagent/alkaline trapping agent, the catalyst achieves highly selective acetic acid formation.
Elhussein M. Hashem, Yiran Jiao, Amin Talebian‐Kiakalaieh, Xin Xu, Shiying Ren, Teng Liang, Wenzhong Ji, Teng Lu, Yun Liu, Bingquan Xia, Ashley Slattery, Jingyu Wang, Feiyan Xu, Ping She, Yan Jiao, Jingrun Ran   +15 more
wiley   +1 more source