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dc.contributor.authorGomez, S. L.
dc.contributor.authorTurchiello, R. F.
dc.contributor.authorJurado, M. C.
dc.contributor.authorBoschcov, Paulo [UNIFESP]
dc.contributor.authorGidlund, Magnus
dc.contributor.authorNeto, AMF
dc.identifier.citationChemistry and Physics of Lipids. Clare: Elsevier Sci Ireland Ltd, v. 132, n. 2, p. 185-195, 2004.
dc.description.abstractThe nonlinear optical response of human normal and oxidized by Cu2+ low-density lipoproteins particles (LDL), were investigated by the Z-scan technique as a function of temperature and concentration of LDL particles. the Z-scan signals increase linearly with concentration of normal LDL particles, following the usual Beer-Lambert law in a broad range of concentrations. the oxidized LDL particles do not show nonlinear optical response. On the other hand, normal LDL increases its nonlinear optical response as a function of temperature. These behaviors can be attributed to an absorbing element that is modified by the oxidative process. Contrarily. changes in the physical state of the cores and conformation of the ApoB100 protein due to an increase in temperature seems to enhance their nonlinear optical properties. This tendency is not due to aggregation of particles. the main contribution to the nonlinear optical response of normal LDL particles comes from the phospholipid fraction of the particles. (C) 2004 Elsevier Ireland Ltd. All rights reserved.en
dc.publisherElsevier B.V.
dc.relation.ispartofChemistry and Physics of Lipids
dc.rightsAcesso restrito
dc.subjectnonlinear optical propertiesen
dc.titleCharacterization of native and oxidized human low-density lipoproteins by the Z-scan techniqueen
dc.contributor.institutionUniversidade de São Paulo (USP)
dc.contributor.institutionUniversidade Federal de São Paulo (UNIFESP)
dc.description.affiliationUniv São Paulo, Inst Phys, Complex Fluids Grp, BR-05315970 São Paulo, SP, Brazil
dc.description.affiliationUniv São Paulo, Inst Chem, Fast Kinet & Photothermal Anal Lab, São Paulo, Brazil
dc.description.affiliationUniv São Paulo, Inst Biomed Sci, Dept Immunol, Lab Immunophysiopathol, São Paulo, Brazil
dc.description.affiliationUnifesp, Dept Biophys, São Paulo, Brazil
dc.description.affiliationUnifespUnifesp, Dept Biophys, São Paulo, Brazil
dc.description.sourceWeb of Science

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