Buscar
Mostrando ítems 1-10 de 248
Solvent-dependent inversion of circular dichroism signal in naproxen: An unusual effect!
(Wiley-Blackwell, 2018-09-01)
The electronic circular dichroism (ECD) spectra of naproxen enantiomers were studied as a function of solvents using experimental (circular dichroism) and theoretical (time-dependent density functional theory) approaches. ...
Study of relative stability of tautomeric forms of phenylbutazone and calculation of UV-Vis and ECD spectra
(Brazilian Chemical Soc, 2016-01-01)
In this work, a theoretical study was carried out to investigate the electronic structures of the deprotonated form of phenylbutazone. Considering a relaxed PES scan from three selected dihedral angles (delta(1), delta(2), ...
Circular Dichroism and Electron Microscopy Studies In Vitro of 33-mer Gliadin Peptide Revealed Secondary Structure Transition and Supramolecular Organization
(Wiley, 2014-01)
Gliadin, a protein present in wheat, rye, and barley, undergoes incomplete enzymatic degradation during digestion, producing an immunogenic 33-mer peptide, LQLQPF(PQPQLPY)3 PQPQPF. The special features of 33-mer that ...
ELUCIDATION OF THE INDUCED CHIRALITY OF DANSYLGLYCINE BY ITS INTERACTION WITH HUMAN SERUM ALBUMIN
(Soc Brasileira Quimica, 2019-02-01)
Human serum albumin (HSA) plays an important role in the transport of a wide variety of substances, including compounds with pharmacological properties. The dansylglycine (DanG) is a fluorescent amino acid derivative ...
Conformational basis for the biological activity of TOAC-labeled angiotensin II and bradykinin: Electron paramagnetic resonance, circular dichroism, and fluorescence studies
(2004-08-05)
N-Terminally and internally labeled analogues of the hormones angiotensin (AII, DRVYIHPF) and bradykinin (BK, RPPGFSPFR) were synthesized containing the paramagnetic amino acid 2,2,6,6-tetramethylpiperidine-1-oxyl-4-amino-4- ...
Conformational basis for the biological activity of TOAC-labeled angiotensin II and bradykinin: Electron paramagnetic resonance, circular dichroism, and fluorescence studies
(2004-08-05)
N-Terminally and internally labeled analogues of the hormones angiotensin (AII, DRVYIHPF) and bradykinin (BK, RPPGFSPFR) were synthesized containing the paramagnetic amino acid 2,2,6,6-tetramethylpiperidine-1-oxyl-4-amino-4- ...
Observation of ferromagnetism in PdCo alloy nanoparticles encapsulated in carbon nanotubes
(Amer Inst PhysicsMelvilleEUA, 2010)
Structure and absolute configuration of a secolignan from Peperomia blanda
(Elsevier B.V., 2011-09-01)
A secolignan, (-)-2-methyl-3-[bis(3 ',4 '-methylenedioxy-5 '-methoxyphenyl) methyl] butyrolactone (1), with a rare cis configuration was isolated from the aerial parts of Peperomia blanda (Piperaceae). The structure of ...
Structure and absolute configuration of a secolignan from Peperomia blanda
(Elsevier B.V., 2011-09-01)
A secolignan, (-)-2-methyl-3-[bis(3 ',4 '-methylenedioxy-5 '-methoxyphenyl) methyl] butyrolactone (1), with a rare cis configuration was isolated from the aerial parts of Peperomia blanda (Piperaceae). The structure of ...