Results 91 to 100 of about 121,504 (326)

The Effect of Pore Functionality in Multicomponent Covalent Organic Frameworks on Stable Long‐Term Photocatalytic H2 Production

Advanced Energy Materials, EarlyView.
Five COFs are synthesized through a multicomponent reaction, preserving a similar backbone while introducing varying pore functionalities. All COFs demonstrate excellent chemical stability and sustained H2 production under sunlight for 7‐15 days. The imidazole‐functionalized COF exhibits the highest H2 production, which can be attributed to its high ...
Prasenjit Das, Gouri Chakraborty, Jin Yang, Jérôme Roeser, Hüseyin Küçükkeçeci, Anh Dung Nguyen, Michael Schwarze, Jose Gabriel, Christopher Penschke, Shengjun Du, Vincent Weigelt, Islam E. Khalil, Johannes Schmidt, Peter Saalfrank, Martin Oschatz, Jabor Rabeah, Reinhard Schomäcker, Franziska Emmerling, Arne Thomas   +18 more
wiley   +1 more source

FORMATION OF DIAMAGNETIC PRODUCTS IN CRYSTALLINE NITRATES UNDER THE ACTION OF LIGHT QUANTA WITH THE ENERGY OF 5.58 EV

Вестник Кемеровского государственного университета, 2014
The photolysis of potassium, rubidium and cesium crystalline nitrates under light with the photon energy of 5.58 eV was investigated. Nitrite and peroxynitrite are the photolysis end-products.
L. D. Kriger, M. B. Miklin, V. A. Anan’ev   +2 more
doaj  

Efeitos de agentes oxidantes e oxigênio dissolvido na descoloração do azo corante acid orange 7 por fotólise e fotocatálise Effects of oxidant agents and dissolved oxygen on the decolorization of acid orange 7 azo dye by photolysis and photocatalysis

Química Nova, 2009
The decolorization of acid orange 7 azo dye by photolysis and photocatalysis by ZnO was investigated in the presence of oxidants such as NaClO3, NaBrO3, NaIO4, and K2S2O8 in an open reactor at 30 ºC.
Adriana Campano Lucilha, Keiko Takashima
doaj   +1 more source

Caged calcium in Aplysia pacemaker neurons. Characterization of calcium-activated potassium and nonspecific cation currents. [PDF]

, 1989
We have studied calcium-activated potassium current, IK(Ca), and calcium-activated nonspecific cation current, INS(Ca), in Aplysia bursting pacemaker neurons, using photolysis of a calcium chelator (nitr-5 or nitr-7) to release caged calcium ...
Landò, L, ZUCKER, Robert S.
core   +2 more sources

Photochemical enrichment of deuterium in Titan's atmosphere: new insights from Cassini-Huygens [PDF]

, 2008
Cassini-Huygens data are used to re-examine the potential sources of the D/H enhancement over solar, measured in methane, in Titan's atmosphere. Assuming that the system is closed with respect to carbon, the use of constraints from the Huygens probe for ...
Audrey Moudens, Daniel Cordier, Jonathan I. Lunine, Lee, Olivier Mousis, Orton, Véronique Vuitton, Yelle   +7 more
core   +4 more sources

Decoding Tattoo and Permanent Makeup Pigments: Linking Physicochemical Properties to Absorption, Distribution, Metabolism, and Elimination Profiles Using Quantitative Structure–Activity Relationship (QSAR)‐Based New Approach Methodologies (NAMs)

Advanced Intelligent Discovery, EarlyView.
This study applies QSAR‐based new approach methodologies to 90 synthetic tattoo and permanent makeup pigments, revealing systemic links between their physicochemical properties and absorption, distribution, metabolism, and elimination profiles. The correlation‐driven analysis using SwissADME, ChemBCPP, and principal component analysis uncovers insights
Girija Bansod, Ajay Vikram Singh, Preeti Bhardwaj, Tulika Rai, Sweta Vijay Nakhale, Amruta Shelar, Rajendra Patil, Peter Laux, Andreas Luch, Christopher J. Osgood, Michael W. Stacey   +10 more
wiley   +1 more source

The Photochemistry of Benzotriazole Derivatives. Part 2: Photolysis of 1-Substituted Benzotriazole Arylhydrazones: New Route to Phenanthridin-6-yl-2-phenyldiazines

Molecules, 2011
Irradiation of 1-substituted benzotriazole arylhydrazones 3a–c, 4a,b and 5a,b with a 16 W low pressure mercury arc-lamp (254 nm) for 24 h gave phenanthridin-6-yl-2-phenyldiazines 9a–c, phenanthridin-6(5H)-ones 10a–c, 1-anilinobenzimidazoles 11a–c, 2-aryl-
Nouria A. Al-Awadi, Mohamed H. Elnagdi, Nader A. Al-Jalal, Maher R. Ibrahim   +3 more
doaj   +1 more source

One-electron oxidation and reduction of glycosaminoglycan chloramides: a kinetic study. [PDF]

, 2013
Hypochlorous acid and its acid-base counterpart, hypochlorite ions, produced under inflammatory conditions, may produce chloramides of glycosaminoglycans, these being significant components of the extracellular matrix (ECM).
A.W.J. Paterson, Akeel, Al-Assaf, Al-Assaf, B.J. Parsons, Balazs, C. Houee-Levin, Camenisch, Chawla, D.J. Heyes, Dogliotti, Eriksen, Hardingham, Hawkins, Hayon, Hayon, Heckel, Heinecke, Huie, Ivanov, J.-L. Marignier, Jiang, Johnson, Kennett, Kennett, Kettle, Laurent, Laurent, McElroy, McElroy, McGowan, Milner, Misra, Parsons, Parsons, Pattison, Pattison, Pattison, Pe Myint, Poskrebyshev, Redpath, Rees, Rees, Rees, Rees, Rees, Rees, S. Sibanda, Schwarz, Stern, Swallow, Tang, Thomas, Thomas, Thorne, Toole, Toole, Toole, Turley, van Golen, von Sonntag, Weeks, Weiss, Weiss, Wine, Wolfenden, Woods, Zao   +67 more
core   +1 more source

Photochemical and Structural Studies on Cyclic Peptide Models

Molecules, 2018
Ultra-violet (UV) irradiation has a significant impact on the structure and function of proteins that is supposed to be in relationship with the tryptophan-mediated photolysis of disulfide bonds. To investigate the correlation between the photoexcitation
Tamás Milán Nagy, Krisztina Knapp, Eszter Illyés, István Timári, Gitta Schlosser, Gabriella Csík, Attila Borics, Zsuzsa Majer, Katalin E. Kövér   +8 more
doaj   +1 more source

Photolysis of Organic Disulphides [PDF]

Nature, 1948
THE reactions following light absorption by pure organic disulphides in solution have not been studied, although the reactions are of great importance in the chemistry of wool, affecting both felting and shrinkage of the wool1,2. Similar reactions occur in irradiated milk3 and in petrol4.
openaire   +2 more sources