Table 2
Effect of solvent polarity on Stern-Volmer (Ksv) constant
Solvent	Dielectric constant	Ksv(Dendrimer G5.0) 107 M−1
Water	80.1	4.7
20% Methanol	71.3	3.0
40% Methanol	61.93	2.4
90% Methanol	37.55	0.6

Ghosh and Saha Nanoscale Research Letters 2009 4:937   doi:10.1186/1556-276X-4-937