@article{kedia_tweaking_2014,
	title = {Tweaking anisotropic gold nanostars: covariant control of a polymer–solvent mixture complex},
	volume = {5},
	issn = {2046-2069},
	shorttitle = {Tweaking anisotropic gold nanostars},
	url = {https://pubs.rsc.org/en/content/articlelanding/2015/ra/c4ra12846j},
	doi = {10.1039/C4RA12846J},
	abstract = {A binary solvent mixture (N,N-dimethylformamide (DMF)–propanol in the present case) has been employed for the first time in a simple yet versatile approach for the in situ intuitive and highly tweaked formation of complex anisotropic gold nanostructures. In this novel approach, the uncommon usage of a polar/non-polar binary solvent mixture provides extra degrees of freedom in tailoring the intrinsic solution properties via simultaneously modifying dipole–dipole and H-bonding interactions with the universally soluble amphiphilic polymer PVP. Interactions are carefully monitored through NMR, which further establishes a rational paradigm in better understanding the kinetic control over both nucleation and size/shape transition/evolution of reproducible anisotropic Au nanostructures, as revealed/correlated through optical absorption and TEM measurements respectively. This unusual size/shape transformation strategy for gold nanostructures allows precise tuning of their respective plasmonic characteristics over the entire visible/NIR spectral range, significantly enabling them to serve as excellent candidates/substrates for tunable surface enhanced Raman spectroscopy (SERS), the preliminary measurements of which are systematically illustrated.},
	language = {en},
	number = {7},
	urldate = {2019-09-16},
	journal = {RSC Advances},
	author = {Kedia, Abhitosh and Kumar, Harsh and Kumar, Pandian Senthil},
	month = dec,
	year = {2014},
	pages = {5205--5212},
}

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