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A New Phase Transfer Strategy to Convert Protein‐Capped Nanomaterials into Uniform Fluorescent Nanoclusters in Reverse Micellar Phase
Author(s) -
Sahu Dillip Kumar,
Pal Tapas,
Sahu Kalyanasis
Publication year - 2018
Publication title -
chemphyschem
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.016
H-Index - 140
eISSN - 1439-7641
pISSN - 1439-4235
DOI - 10.1002/cphc.201800191
Subject(s) - nanoclusters , nanomaterials , fluorescence , micelle , chemistry , nanoparticle , aqueous solution , bovine serum albumin , phase (matter) , chemical engineering , nanotechnology , photochemistry , materials science , organic chemistry , chromatography , physics , quantum mechanics , engineering
Abstract A new phase transfer strategy to convert aqueous phase protein‐protected nanomaterials into fluorescent nanoclusters in the reverse micellar environment is introduced using bovine serum albumin (BSA)‐protected silver nanoclusters (AgNCs) and nanoparticles (AgNPs) as an example. The basic pH employed in the fabrication of protein‐protected nanoclusters induces the the protein capping to be negatively charged and facilitates the transfer process of the nanomaterials from aqueous phase to a cationic gemini surfactant (16‐2‐16)/hexane/hexanol/water reverse micelle (RM) phase. The original fluorescence characteristics of the seed nanocluster is retained after the transfer process. Strikingly, when both the nanomaterials (AgNCs and AgNPs) coexist in the aqueous feed solution, they are exclusively converted into uniform nanoclusters in the RM extract with enhanced fluorescence intensity.