posted on 2023-12-22, 04:29authored byAshok
Singh Bahota, Keshav Kumar Singh, Arti Yadav, Rajni Chaudhary, Neelam Agrawal, Poonam Tandon
Research on amino acids is an attractive area because
of their
application in metabolism, cancer treatment, growth, and repair of
body tissue, and RNA and DNA syntheses. Twenty amino acids are primarily
responsible for protein synthesis. In our study, we used a Cu6 nanocluster as an amino acid detector. For the investigation,
we adsorbed amino acids on the Cu6 nanocluster and studied
their UV–visible spectra. It is observed that all of the Cu6–amino acid complexes have peaks at near 380 nm wavelength
except the Cu–phenylalanine complex, where two UV–visible
peaks are found at wavelengths 351 nm (excitation energy 3.49 eV)
and 403 nm (excitation energy 3.02 eV), respectively, which originated
from the HOMO – 2 to LUMO (28%) and HOMO – 1 to LUMO
(38%) transitions. Due to this unique transition, the Cu6 nanocluster can be used for the detection of the phenylalanine amino
acid out of the 20 amino acids.