Dendronized magnetic nanoparticles for HIV-1 capture and rapid diagnostic
2019
Abstract Human immunodeficiency virus type 1 (HIV-1) remains a global public health problem. Detection and reduction of the rates of late diagnosis of HIV-1 infection are one of the main challenges in combating the HIV-1 epidemic. Magnetic nanoparticles (MNPs) have several characteristics that make them susceptible to capture HIV-1 of a wide range of biological samples reducing waiting times between the acquisition of HIV-1 infection and its detection by current techniques. Carbosilane dendrons decorated with peripheral carboxyl groups and alcoxysilane function at the focal point have been used to stabilize MNPs by co-precipitation method in one step. The characterization of these systems and of their carboxylate analogues was performed by Fourier transform infrared spectroscopy (FTIR), transmission electron microscopy (TEM), dynamic light scattering (DLS), ζ potential and thermal gravimetric analysis (TGA). The ability of carboxyl and carboxylate MNPs to capture R5-HIV-1 and X4-HIV-1 strains was evaluated to achieve a rapid and easy diagnostic method in order to reduce or eliminate the risk of HIV-1 transmission.
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