نتایج جستجو برای: vinyltriphenylphosphonium salts

تعداد نتایج: 27784  

Journal: :Bioinorganic Chemistry and Applications 2005
Beatriz King-Díaz Josefina Montes-Ayala Concepción Escartín-Guzmán Silvia E. Castillo-Blum Roberto Iglesias-Prieto Blas Lotina-Hennsen Norah Barba-Behrens

In this work we present the synthesis, structural and spectroscopic characterization of Co(2+) coordination compounds with ethyl 4-methyl-5-imidazolecarboxylate (emizco). The effects of emizco, the metal salts CoCl(2).6H(2)O, CoBr(2), Co(NO(3))(2).6H(2)O and their metal coordination compounds [Co(emizco)(2)Cl(2)], [Co(emizco)(2) Br(2)].H(2)O, [Co(emizco)(2) (H(2)O)(2)(NO(2))(2).2H(2)O were eval...

Journal: :Archivos de bronconeumologia 2008
Xavier Muñoz Susana Gómez-Ollés María Jesús Cruz María Dolores Untoria Ramon Orriols Ferran Morell

OBJECTIVE Persulfate salts are among the most frequently implicated causes of occupational asthma. The aim of this study was to describe the course of bronchial hyperresponsiveness and immunologic test results in patients with occupational asthma due to persulfate salts. PATIENTS AND METHODS Ten patients with occupational asthma due to persulfate salts were studied. Diagnosis was based on spe...

2000
H. H. Coenen Alfred P. Wolf

The direct electrophilic no-carrier-added (n.c.a.) aromatic radioiodination was examined using various metal salts in trifluoroacetic acid (TFA) as in situ oxidation agents. Two different types of metal salts were used comprising TFAsoluble (Pb(CH3CO2)4, Mn(CH3CO2)3, KMnO4, Tl(CF3CO2)3, AgCF3SO3) and TFA-insoluble (Ce(CF3SO3)4, RuCl3, FeBr3, K2Cr2O7) salts. Optimization of both labelling system...

Journal: :Chemistry 2008
Elena Lestini Kirill Nikitin Helge Müller-Bunz Donald Fitzmaurice

This paper describes novel host-guest systems comprising viologen cations (guests) and the derivatives of bis-para-phenylene-34-crown-10 (hosts) with anionic groups COO(-) or SO(3)(-). The structure of the resulting charge-compensated host-guest complexes, their association constants and their electrochemical behaviour have been studied. In the solid state, the viologen cations thread the negat...

2017
Ashagrie Gibtan Kyounghee Park Mingyeong Woo Jung-Kue Shin Dong-Woo Lee Jae Hak Sohn Minjung Song Seong Woon Roh Sang-Jae Lee Han-Seung Lee

Salting is one of the oldest food preservation techniques. However, salt is also the source of living halophilic microorganisms that may affect human health. In order to determine the microbial communities of commercial salts, an investigation were done using amplicon sequencing approach in four commercial salts: Ethiopian Afdera salt (EAS), Ethiopian rock salt (ERS), Korean Jangpan salt (KJS),...

Journal: :Journal of neurophysiology 2007
S H Rolen J Caprio

A chemotopic map of biologically relevant odorants (that include amino acids, bile salts, and nucleotides) exists in the olfactory bulb (OB) of channel catfish, Ictalurus punctatus. Neurons processing bile salt odorant information lie medially within this OB map; however, information as to how single neurons process bile salt odorant information is lacking. In the present report, recordings wer...

Journal: :Soft matter 2014
Ningdong Huang Jiaojiao Tao Jun Liu Shenghui Wei Liangbin Li Ziyu Wu

While salt mediated association between similarly charged poly-electrolytes occurs in a broad range of biological and colloidal systems, the effects of mono-valent salts remains little known experimentally. In this communication we systematically study influences of assorted mono-valent salts on structures of and interactions in two dimensional ordered bundles of charged fibrils assembled in wa...

Journal: :The Biochemical journal 1999
T Nishioka S Tazuma G Yamashita G Kajiyama

Cholesterol crystallization is a key step in gallstone formation and is influenced by numerous factors. Human bile contains various bile salts having different hydrophobicity and micelle-forming capacities, but the importance of lipid composition to bile metastability remains unclear. This study investigated the effect of bile salts on cholesterol crystallization in model bile (MB) systems. Sup...

Journal: :Chemistry, an Asian journal 2011
Pathik Sahoo D Krishna Kumar Srinivasa R Raghavan Parthasarathi Dastidar

Easy access to a class of chiral gelators has been achieved by exploiting primary ammonium monocarboxylate (PAM), a supramolecular synthon. A combinatorial library comprising of 16 salts, derived from 5 L-amino acid methyl esters and 4 cinnamic acid derivatives, has been prepared and scanned for gelation. Remarkably, 14 out of 16 salts prepared (87.5 % of the salts) show moderate to good gelati...

2000
BALJEET S. KAUR RODICA OUATU-LASCAR GEORGE TRIADAFILOPOULOS

Kaur, Baljeet S., Rodica Ouatu-Lascar, M. Bishr Omary, and George Triadafilopoulos. Bile salts induce or blunt cell proliferation in Barrett’s esophagus in an aciddependent fashion. Am J Physiol Gastrointest Liver Physiol 278: G1000–G1009, 2000.— Barrett’s esophagus (BE) results from acid and bile reflux and predisposes to cancer. We investigated the effect of bile salts, with or without acid, ...

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