Results 111 to 120 of about 115,061 (305)

Comparison of Curing Efficacy of Halogen and LED Polymerization Lamps Using Composite Materials of Different Polymerization Mechanism

Česká Stomatologie a Praktické Zubní Lékařství, 2009
The objective was to compare efficacy of several types of halogen and LED polymerization lamps in curing restorative composite materials. Halogen lamps Heliolux DLX1 (Ivoclar Vivadent) and Megalux Fast Cure (MegaPhysik) and LED lamps DioPower (CMS Dental)
P. Bradna, J. Froněk, L. Comba, D. Houšová   +3 more
doaj  

Structure of 7,9,12,15,18,20,39,24,45,57-C60(CF3)10(1,2:3,4-O)2. The First Regiospecific Diepoxidation of a Fullerene Derivative

Acta Chimica Slovenica, 2013
An unusual regiospecific diepoxidation of an isomer of C60(CF3)10 was discovered to slowly occur in solution while exposed to air. This is the only known example of a perfluoroalkyl fullerene undergoing epoxidation under ambient conditions.
James B. Whitaker, Natalia B. Shustova, Steven H. Strauss, Olga V. Boltalina   +3 more
doaj  

Synthesis, Characterization and Antimicrobial Activity of New 1,2,3-Selenadiazoles

Molecules, 2008
The commercially available aromatic polyketones 1a-d were utilized for the synthesis of the multi-arm1,2,3-selenadiazole derivatives 3a-d. The preparation starts with the reaction between compounds 1a-d and p-toluenesulfonyl hydrazide to give the ...
Mousa Al-Smadi, Fouad Al-Momani
doaj   +1 more source

Targeted monitoring for human pharmaceuticals in vulnerable source and final waters [PDF]

, 2012
A range of pharmaceuticals has been detected in soils, surface waters and groundwaters across the world. While the reported concentrations are generally low (i.e. sub μg l-1 in surface waters), the substances have been observed throughout the year across
Bersuder, Phillipe, Boxall, Alistair B.A., Bruemer, Janine, Fussell, Richard, Greenwood, Richard, Monteiro, Sara C., Williams, Richard J.   +6 more
core  

Ribozymes for RNA‐Catalyzed RNA Methylation and Labeling

Angewandte Chemie International Edition, EarlyView.
Ribozymes are powerful tools for site‐specific RNA modification. Their activities range from installing tags and fluorophores to generating natural RNA methylations, making them valuable tools to uncover the many functions that RNA plays in nature.
Carolin P. M. Scheitl, Claudia Höbartner   +1 more
wiley   +1 more source

Syntheses of Chiral 2-Oxazolines from Isosorbide Epoxide Derivative

Molbank
Two chiral monooxazolines were synthesized from a secondary amino alcohol, as a key intermediate, isolated in four steps from an isosorbide-derived epoxide.
Mohammed Kadraoui, Stéphane Guillarme, Christine Saluzzo   +2 more
doaj   +1 more source

Bacteriostatic conformal coating and methods of application Patent [PDF]

, 1970
Development of bacteriostatic conformal coating and methods of ...
Bland, C., Le Doux, F. N.
core   +1 more source

Engineered Bacterial Ligand From Streptococcus pneumoniae on Macroporous Resins for Selective Affinity Capture of Secretory IgA

Biotechnology and Bioengineering, EarlyView.
ABSTRACT Secretory immunoglobulin A (sIgA) is a promising emerging biopharmaceutical candidate, but it currently lacks a standardized platform for purification. To address this, a novel affinity chromatography resin was developed by immobilizing protein variants of the Streptococcus pneumoniae surface protein, SpsA, as an affinity ligand.
David Scheich, Andres Männik, Oliver Meikar, Joan Teyra, Laura Kibena, Sebastiaan Eeltink, Rainer Hahn, Alois Jungbauer, Nico Lingg   +8 more
wiley   +1 more source

ON THE PECULIARITIES OF THE RING CONTRACTION REACTIONS OF HOMODRIMANES VIA ACID MEDIATED EPOXIDE REARRANGEMENT [PDF]

Chemistry Journal of Moldova: General, Industrial and Ecological Chemistry, 2011
A selective rearrangement of a epoxy-homodrimanic substrate is described. Using fluorosulfonic acid at low temperature leads by ring contraction to a perhydrindanic structure. On the contrary, using boron trifluoride-diethyl ether at r.t.
Veaceslav Kulciţki, Tatiana Sîrbu, Nicon Ungur   +2 more
doaj  

Unveiling the Roles of Ti Species and Solvent in Propylene Epoxidation With H2O2 Over Titanosilicate‐1 Catalyst Through Density Functional Theory Insights

Carbon and Hydrogen, EarlyView.
This work employs density functional theory (DFT) calculations to identify the reaction mechanism and unveil the roles of Ti species and solvent in propylene epoxidation with H2O2 over TS‐1 catalyst. ABSTRACT The mechanism of propylene epoxidation catalyzed by distinct titanium (Ti) species within the TS‐1 framework was systematically explored through ...
Junxi Chen, Xue Wei, Xinyue Wang, Xiaowa Nie, Xinwen Guo   +4 more
wiley   +1 more source