Erratum to: Appl Nanosci DOI 10.1007/s13204-011-0016-1

Owing to an unfortunate oversight, the following corrections were not carried out by the typesetter before online publication of the article:

In Introduction, Paragraph 2, Line 28: Hu et al. should read Yongqi et al.

In Experimental, Paragraph 3, Line 13: 1 should read 1°.