Rapid Growth of Zinc Oxide Nanotube–Nanowire Hybrid Architectures and Their Use in Breast Cancer-Related Volatile Organics Detection

• DOI: 10.1021/acs.nanolett.5b05280
• Publication Date: 2016-04-05T21:03:30Z
• Authors: Giwan Katwal; Maggie Paulose; Irene A. Rusakova; James E. Martinez; Oomman K. Varghese
• Keywords: Chemiresistor; Anodizing

A simple direct method for the rapid fabrication of zinc oxide nanotube-nanowire hybrid structure in an environmentally friendly way is described here. Zinc foils were anodized aqueous solution washing soda and baking at room temperature order to obtain architecture. At beginning process nanowires formed on substrate. The wider transformed into nanotubes about a minute grew length with time. morphological integrity was maintained upon heat treatment temperatures up melting point substrate (∼400 °C) except that nanotube wall became porous. chemiresistor devices fabricated using heat-treated exhibited high response low-concentration volatile organic compounds are considered markers breast cancer. not significantly affected by humidity or presence hydrogen, methane, carbon dioxide. expected find use as breath sensors noninvasive early detection