1 Erratum to: Microfluid Nanofluid (2011) 11:57–64 DOI 10.1007/s10404-011-0773-x

Unfortunately, Eq. 7 has been published incorrectly in the original publication of the article. The corrected version of Eq. 7 is given below:

$$ k_{\lambda } = \frac{(7 - 2\omega )(5 - 2\omega )}{15\sqrt \pi }. $$
(7)