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- Paula Guarín, Jonatan Cristancho, John J. Castillo, Rapid electrochemical detection of Staphylococcus aureus based on screen-printed gold electrodes modified with cysteine and Guinea grass (Panicum maximum) peroxidase , Revista de la Academia Colombiana de Ciencias Exactas, Físicas y Naturales: Vol. 44 No. 172 (2020)
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Hybrid compounds formed by biomolecules and nanometric structures are attracting interest for the development of applications in the fields of biosensors and drug delivery. In this study we prepared a grapheme-folic acid conjugate which we characterized by Raman spectroscopy and the density functional theory (DFT) computational method. The non-covalent conjugate was performed through a simple and fast one-pot method. The analysis of ratio intensity of D and G bands in the Raman spectroscopy evidenced graphene functionalization. The DFT method showed that the bond between graphene and folic acid occurs by non-covalent π-π and hydrogen bond interactions. Graphene and folic acid conjugates will allow the design of biosensors for the detection of cancer cells overexpressing folate receptors using analytic devices for a faster, more effective and timely diagnosis of cancer. © 2018. Acad. Colomb. Cienc. Ex. Fis. NatReferences
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