title: Stability and aggregation assays of nanoparticles in biological media.
abstract: Colloidal stability of nanoparticles in biological media is crucial to preserve their utility as aggregation often leads to undesirable biological response. A quantitative measurement of nanoparticles aggregation in solution would provide a valuable assessment of colloidal stability of bio-nano interfaces after surface functionalization. Here, we develop a quantitative technique based on optical absorption to assay the colloidal stability of plasmonic nanoparticles functionalized with different amphiphilic surface ligands in biologically relevant media.
authors.affiliation: National University Singapore, Singapore, Singapore.
authors.forename: James Chen Yong
authors.initials: JC
authors.lastname: Kah
mesh_terms: D001709:Biotechnology / Q000379:methods; D003102:Colloids / Q000737:chemistry*; D003470:Culture Media / Q000737:chemistry*; D006046:Gold / Q000737:chemistry*; D053768:Metal Nanoparticles / Q000737:chemistry*; D053758:Nanoparticles / Q000737:chemistry*; D010316:Particle Size; D013499:Surface Properties
chemical_list: D003102:Colloids; D003470:Culture Media; D006046:Gold