Near infrared optical biosensor based on peptide functionalized single walled carbon nanotubes hybrids for 2,4,6-trinitrotoluene (TNT) explosive detection

作者：Wang Jin^*

来源：Analytical Biochemistry, 2018, 550: 49-53.

DOI：10.1016/j.ab.2018.04.011

• Near infrared
• TNT binding peptide
• SWCNTs
• pi-pi interaction
• TNT analogues

A near infrared (NIR) optical biosensor based on peptide functionalized single-walled carbon nanotubes (SWCNTs) hybrids for 2,4,6-trinitrotoluene (TNT) explosive detection was developed. The TNT binding peptide was directly anchored on the sidewall of the SWCNTs using the pi-pi interaction between the aromatic amino acids and SWCNTs, forming the peptide-SWCNTs hybrids for near infrared absorption spectra measurement. The evidence of the morphology of peptide-SWCNTs hybrids was obtained using atomic force microscopy (AFM). The results demonstrated that peptide-SWCNTs hybrids based NIR optical biosensor exhibited sensitive and highly selective for TNT explosive determination, addressing a promising optical biosensor for security application.

• 出版日期2018-6-1