ANDREIA DOS SANTOS SILVA
16 resultados
Resultados de Busca
Agora exibindo 1 - 10 de 16
Resumo IPEN-doc 23307 Investigation of hyperfine interactions in immunoglobulin G with perturbed angular correlation spectroscopy using 111Cd2016 - SILVA, ANDREIA; AMARAL, ANTONIO; LAPOLLI, ANDRE; SAXENA, RAJENDRA; CARBONARI, ARTURHyperfine interaction parameters have been used to investigate physical properties of biomolecules from different isotypes of immunoglobulins G (IgG1, IgG2a and IgG2b). Immunoglobulin IgG1 induces a pattern of response type Th2 that corresponds to an allergic immunological response, whereas immunoglobulin IgG2 induces a pattern of response Th1 that corresponds to a cellular immunological response, suited for response against parasites. Hyperfine interactions were measured by perturbed gamma-gamma angular correlation (PAC) spectroscopy using 111In(111Cd) and 111mCd(111Cd) as probe nuclei. The measurements were carried out for both the complete and fragmented molecules at 295 K and 77 K, and both static as well as dynamic interactions were observed. Results of both measurements were used to calculate the rotational correlation time for each studied molecule. The complete and fragmented molecules showed different dynamic interactions. It was therefore conclude that the PAC technique is quite adequate for differentiating between the isotypes of immunoglobulins as well as their dynamic behavior if adequate nuclear probe is utilized with rigorous control of measuring conditions. The hyperfine parameters obtained are related to the physical properties of each molecule in an attempt to understand the difference in their biological function.Resumo IPEN-doc 16959 Measurements in DNA molecules using perturbed angular correlations spectroscopy2011 - SILVA, ANDREIA dos S.; AMARAL, ANTONIO A.; LAPOLLI, ANDRE L.; SAXENA, RAJENDRA N.; CARBONARI, A.W.Resumo IPEN-doc 16705 Investigação de interações hiperfinas em DNA e anticorpos de diferentes linhagens de camundongos frete à infecção por T-cruzi pela espectroscopia de correlação angular gama-gama perturbada2008 - SILVA, ANDREIA dos S.; LAPOLLI, ANDRE L.; CARBONARI, ARTUR W.Resumo IPEN-doc 16704 Measurements in DNA molecules using perturbed angular correlation spectroscopy2010 - SILVA, ANDREIA dos S.; AMARAL, ANTONIO A.; LAPOLLI, ANDRE L.; SAXENA, RAJENDRA N.; CARBONARI, ARTUR W.; GONCALVES, MARCOS B.Resumo IPEN-doc 16703 Ab initio hyperfine interactions as a powerful tool to identify the metal binding site in biological systems: Cd2+ in DNA bases2010 - PETERSEN, PHILIPPE A.D.; GONCALVES, MARCOS B.; PETRILLI, HELENA M.; SILVA, ANDREIA dos S.; LAPOLLI, ANDRE L.; CARBONARI, ARTUR W.Resumo IPEN-doc 04075 Caracterizacao microestrututural de acos magneticos por microscopia eletronica de transmissao1991 - MONTEIRO, W.A.; RODRIGUES, V.A.; FERREIRA, N.A.M.; SILVA, A.S.; CUNHA, M.A.Resumo IPEN-doc 18782 Investigation of hyperfine interactions in DNA nitrogenous bases using perturbed angular correlation spectroscopy2012 - SILVA, ANDREIA dos S.; CARBONARI, ARTUR W.; LAPOLLI, ANDRE L.Artigo IPEN-doc 05421 Relacao entre a orientacao cristalografica e a precipitacao de MnS na liga Fe-3 porcento Si1994 - MONTEIRO, W.A.; RODRIGUES, V.A.; FERREIRA, N.M.A.; LIMA, N.B.; CUNHA, M.A.; SILVA, A.S.Artigo IPEN-doc 19260 Investigation of hyperfine interactions in DNA nitrogenous bases using perturbed angular correlation spectroscopy2013 - SILVA, ANDREIA dos S.; CARBONARI, ARTUR W.; LAPOLLI, ANDRE L.; SAXENA, RAJENDRA N.; SAITOVITCH, HENRIQUEArtigo IPEN-doc 15160 Application of perturbed angular correlation spectroscopy in IgG immunoglobulins2009 - SILVA, A.S.; AMARAL, A.A.; LAPOLLI, A.L.; CARBONARI, A.W.