Results 71 to 80 of about 42,896 (290)

Dynamic identification of reactive iron-oxo species in heterogeneous fenton-like reaction via operando stopped-flow IR spectroscopy

Nature Communications
Heterogeneous high-valent iron-oxo species (FeIV = O) are known as reactive oxygen species with specific oxygen-atom transfer capabilities, yet the characterization of their presence and kinetic behaviors in Fenton or Fenton-like systems remains ...
Qi Zhao, Qiang Huang, Ran Duan, Zhiyong Zhang, Yangen Xie, Wenjing Song, Hua Sheng, Jincai Zhao   +7 more
doaj   +1 more source

Flow photochemistry: Old light through new windows

Beilstein Journal of Organic Chemistry, 2012
Synthetic photochemistry carried out in classic batch reactors has, for over half a century, proved to be a powerful but under-utilised technique in general organic synthesis.
Jonathan P. Knowles, Luke D. Elliott, Kevin I. Booker-Milburn   +2 more
doaj   +1 more source

USE OF NANOSIZED CHROMIUM DOPED TiO₂ SUPPORTED ON ZEOLITE FOR METHYLENE BLUE DEGRADATION

Indonesian Journal of Chemistry, 2010
The photocatalytic degradation of methylene blue dye under visible light has been investigated using chromium modified titanium dioxide supported on zeolite (Cr-TiO2/zeolite).
Aarti Ameta, Indu Bhati, Rakshit Ameta, Suresh C. Ameta   +3 more
doaj   +1 more source

External Reflection From Two‐Photon Laser‐Printed Micromirrors Enables Photomechanical Actuation at a 90° Incident Angle

Advanced Functional Materials, EarlyView.
Light reflectance increases along incidence angle and transmittance significantly drops around 90‐degree incidence angle. Here, we report two‐photon laser printed micro mirrors that redirect the skimming light beam into normal light absorption. Using this technique, light‐driven micro walkers and grippers are demonstrated by using grazing incidence ...
Leilei Song, Jianfeng Yang, Hao Zeng
wiley   +1 more source

Ultrafast Photochemistry

CHIMIA, 2002
Several aspects of ultrafast photochemistry in the condensed phase are discussed and illustrated by three examples from our laboratory.
Ana Morandeira, Alexandre Fürstenberg, Olivier Nicolet, Stéphane Pages, Bernhard Lang, Eric Vauthey   +5 more
doaj   +1 more source

Extraterrestrial Photochemistry: Principles and Applications [PDF]

, 2021
Christopher R. Arumainayagam, Eric Herbst, A. N. Heays, Ella Mullikin, Megan Farrah, Michael G. Mavros   +5 more
openalex   +1 more source

Novel Functional Materials via 3D Printing by Vat Photopolymerization

Advanced Functional Materials, EarlyView.
This Perspective systematically analyzes strategies for incorporating functionalities into 3D‐printed materials via Vat Photopolymerization (VP). It explores the spectrum of achievable functionalities in recently reported novel materials—such as conductive, energy‐storing, biodegradable, stimuli‐responsive, self‐healing, shape‐memory, biomaterials, and
Sergey S. Nechausov, Patrick Fesser, Boris A. Bulgakov, Ulrich S. Schubert   +3 more
wiley   +1 more source

Synthesis and Isomerization of Some Novel Pyrazolopyrimidine and Pyrazolotriazolopyrimidine Derivatives

Molecules, 2014
4-Imino-1-p-tolyl-1,4-dihydropyrazolo[3,4-d]pyrimidin-5-ylamine (2) and (1-p-tolyl-1H-pyrazolo[3,4-d]pyrimidin-4-yl)-hydrazine (3) were prepared starting from ethyl 4-cyano-1-p-tolyl-1H-pyrazol-5-ylimidoformate (1).
Aymn E. Rashad, Ahmed H. Shamroukh, Randa E. Abdel-Megeid, Hatem S. Ali   +3 more
doaj   +1 more source

Carbon Contacts to Proteins Enable Robust, Biocompatible Electronic Junctions with Near‐Activation‐less Conduction Down to 10 K

Advanced Functional Materials, EarlyView.
A robust solid‐state protein junction with a semi‐transparent eC/Au electrode allows photoexcitation of the bacterio‐rhodopsin, bR layer, to isomerize the bR retinal. The resulting photo‐response shows the protein is functional in the solid‐state junction.
Shailendra K. Saxena, Sudipta Bera, Tatyana Bendikov, Israel Pecht, Mordechai Sheves, David Cahen   +5 more
wiley   +1 more source

Combining Thermogravimetry‐Mass Spectrometry and Target Factor Analysis for Rapid Characterization of Volatiles from Degradation of Epoxy Paint

Analytical Science Advances
Thermogravimetry coupled with simultaneous evolved gas analysis by mass spectrometry was used for discerning organic compounds released during the thermal degradation of paint whose chemical compositions are not readily accessible.
Subhamoy Saha, Ajit N. Shirsat, V. S. Tripathi, Salil Varma, Mathi Pandiyathuray   +4 more
doaj   +1 more source