Abstract
ABSTRACTSodium alginate modified Ag2O (SA@Ag2O) nano-colloid is synthesised and studied colorimetric response towards eight selected amino acids in aqueous medium at room temperature. The synthesised SA@Ag2O nano-colloid showed a surface plasmon band at 469 nm. Distinctive colour change of the dark brown colloid to colourless is observed in the case of Cystine. Among the eight amino acids studied such as D-L- Aspartic acid, L-Glutamic acid, Glycine, Alanine, D-L Methionine, L-Cysteine, L-Cystine and L-Tyrosine. L-Cystine stands out by completely decolorising the brown colloid which can be detected by the ‘naked-eye’. This sensor selectively detects Cystine. To understand the sensing mechanism, the amino acid treated SA@Ag2O colloids were characterised by UV, XRD, FTIR and TEM analysis. This approach offers several advantages such as simplicity, low cost and high sensitivity.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
