Manu M. Joseph, Jyothi B. Nair, Kaustabh Kumar Maiti* and Sreelekha Therakathinal T.*
Biopolymer-capped gold nanoparticles (AuNPs) were perceived for tracing biodistribution in a solid tumor mice through surface-enhanced Raman scattering (SERS) fingerprinting. In this strategy, a robust and ecofriendly green chemistry approach was adopted to construct galactoxyloglucan (PST001) endowed AuNPs (PST-GNPs) with cancer-cell-selective toxic nature and excellent biocompatibility. Plasmonically enhanced lightscattering properties facilitated PST-GNPs to be a superior SERS substrate with high Raman signal enhancement. In this context, PST-GNPs were scrutinized for the noninvasive labelfree SERS live-cell spectral imaging to evaluate the fingerprint molecular details of cellular processes. Consequently, the inherent SERS feature of PST-GNPs enabled us to investigate the dynamic and complex nature with NP biodistrubution in tumor-bearing mice on a SERS platform that illustrated the tumor targeting nature. Henceforth, the present findings emphasized a futuristic clinically relevant scenario for tracing the in vivo NP dissemination in a label-free fashion for providing vital biochemical details on a molecular level.
Biomacromolecules, 2017, 18, 4041?4053.
Preparation of SERS-Active Gold Nanoparticles (PST-GNPs) in a Green Chemistry Approach Using PST001 for Cancer Cell Targeted Cytotoxicity and Raman Imaging.