TY - JOUR
T1 - Dendron-like growth of silver nanoparticles using a water-soluble oligopeptide
AU - Bhattacharya, Santanu
AU - Das, Apurba K.
AU - Banerjee, Arindam
AU - Chakravorty, Dipankar
PY - 2006/6/8
Y1 - 2006/6/8
N2 - A dendron-like nanostructure of silver was grown in solution using a water-soluble tetrapeptide Tyr-Aib-Tyr-Val (Aib, α-amino isobutyric acid), silver nitrate, and methanol. These structures are composed of silver nanoparticles having a bimodal size distribution with the median diameters around 2.0 and 19.5 nm, respectively. The dendron-like growth is ascribed to the effect of the local electric field generated by the dipoles associated with the peptide molecules. The optical absorption spectra have been analyzed by Mie scattering theory, which shows that there is a metal-nonmetal transition in silver particles having diameters less than ∼2.0 nm.
AB - A dendron-like nanostructure of silver was grown in solution using a water-soluble tetrapeptide Tyr-Aib-Tyr-Val (Aib, α-amino isobutyric acid), silver nitrate, and methanol. These structures are composed of silver nanoparticles having a bimodal size distribution with the median diameters around 2.0 and 19.5 nm, respectively. The dendron-like growth is ascribed to the effect of the local electric field generated by the dipoles associated with the peptide molecules. The optical absorption spectra have been analyzed by Mie scattering theory, which shows that there is a metal-nonmetal transition in silver particles having diameters less than ∼2.0 nm.
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U2 - 10.1021/jp0604847
DO - 10.1021/jp0604847
M3 - Article
C2 - 16771323
AN - SCOPUS:33745436941
SN - 1520-6106
VL - 110
SP - 10757
EP - 10761
JO - Journal of Physical Chemistry B
JF - Journal of Physical Chemistry B
IS - 22
ER -