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Amyloid β25–35 (Aβ25–35) peptide is a peculiar peptide for its rapid aggregation properties and high neurotoxicity in Alzheimer's disease. Here, the interactions between gold nanoparticles (GNPs) and Aβ25–35 monomers, oligomers and fibrils are explored under different molar ratio, temperature and pH by ultraviolet–visible and circular dichroism spectra, thioflavin T fluorescence assay and transmission...
pH sensitivity of protein mediated gold nanocrystals modified SiO2 have been investigated using a capacitive EIS (electrolyte-insulator-semiconductor) structure and compared with bare SiO2. The SiO2 surface was first silanized using phenyltriethoxy and then a chaperonin protein array was formed on SiO2 surface. Finally, the chaperonin protein lattice is used to deposit gold nanocrystal on SiO2 surface...
This paper presents an attempt to use two substrate types silicon and glass for microarray technique, in order to find the best chemistry surface for immobilization of proteins in microarray technology. Different chemical substrate were studied (glass slides and silicon slides coated with gold and poly-L-lysine) printed with BSA and marked with CY3. The slides were printed and after that washed with...
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