A family of nanoparticles has been fabricated featuring cationic amino acid-based side chains. This controlled surface modification provides a tool to investigate the effect of various non-covalent interactions at the nanoparticle-DNA interface. The binding affinities of these nanoparticles towards DNA were determined using fluorescence, exhibiting more than threefold modulation in binding a 37-mer DNA strand. The secondary structure of the DNA strand was distorted upon nanoparticle binding, with the extent of distortion dependent on the structure of amino acid side chain.
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Univ Chile, Fac Ciencias, Dept Quim, Palmeras 3425, Santiago, ChileUniv Chile, Fac Ciencias, Dept Quim, Palmeras 3425, Santiago, Chile
Leal, M. S.
Briones, X.
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Univ Chile, Fac Ciencias, Dept Quim, Palmeras 3425, Santiago, ChileUniv Chile, Fac Ciencias, Dept Quim, Palmeras 3425, Santiago, Chile
Briones, X.
Villalobos, V.
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Univ Autonoma Chile, Fac Ingn, Inst Ciencias Quim Aplicadas, Llano Subercaseaux 2801, San Miguel, ChileUniv Chile, Fac Ciencias, Dept Quim, Palmeras 3425, Santiago, Chile
Villalobos, V.
Queneau, Y.
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Univ Lyon, ICBMS, UMR 5246, CPE Lyon,INSA Lyon,UCBL,CNRS, Bat Lederer,1 Rue Victor Grignard, F-69622 Villeurbanne, FranceUniv Chile, Fac Ciencias, Dept Quim, Palmeras 3425, Santiago, Chile
Queneau, Y.
Leiva, A.
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Pontificia Univ Catolica Chile, Fac Quim, Dept Quim Fis, Santiago 7820436, ChileUniv Chile, Fac Ciencias, Dept Quim, Palmeras 3425, Santiago, Chile
Leiva, A.
Rios, H. E.
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Univ Chile, Fac Ciencias, Dept Quim, Palmeras 3425, Santiago, ChileUniv Chile, Fac Ciencias, Dept Quim, Palmeras 3425, Santiago, Chile
Rios, H. E.
Pavez, J.
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Univ Santiago Chile, Fac Quim Biol, Dept Quim Mat, Av B OHiggins 3363, Santiago, ChileUniv Chile, Fac Ciencias, Dept Quim, Palmeras 3425, Santiago, Chile
Pavez, J.
Silva, C. P.
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Univ Santiago Chile, Fac Quim Biol, Dept Quim Mat, Av B OHiggins 3363, Santiago, ChileUniv Chile, Fac Ciencias, Dept Quim, Palmeras 3425, Santiago, Chile
Silva, C. P.
Carrasco, C.
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Univ Chile, Fac Ciencias, Dept Biol, Santiago 7800023, ChileUniv Chile, Fac Ciencias, Dept Quim, Palmeras 3425, Santiago, Chile
Carrasco, C.
Neira-Carrillo, Andronico
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Univ Chile, Fac Ciencias Vet & Pecuarias, Av Sta Rosa 11735, Santiago, ChileUniv Chile, Fac Ciencias, Dept Quim, Palmeras 3425, Santiago, Chile
Neira-Carrillo, Andronico
Roth, A. D.
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Univ Chile, Fac Ciencias, Dept Biol, Santiago 7800023, ChileUniv Chile, Fac Ciencias, Dept Quim, Palmeras 3425, Santiago, Chile
Roth, A. D.
Tamayo, L.
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Univ Chile, Fac Ciencias, Dept Quim, Palmeras 3425, Santiago, ChileUniv Chile, Fac Ciencias, Dept Quim, Palmeras 3425, Santiago, Chile
Tamayo, L.
Urzua, M. D.
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Univ Chile, Fac Ciencias, Dept Quim, Palmeras 3425, Santiago, ChileUniv Chile, Fac Ciencias, Dept Quim, Palmeras 3425, Santiago, Chile