| AVS 60th International Symposium and Exhibition | |
| Biomaterial Interfaces | Tuesday Sessions |
| Session BI-TuP |
| Session: | Biomaterials Interfaces Poster Session |
| Presenter: | K.E. Marusak, Duke University |
| Authors: | K.E. Marusak, Duke University S. Payne, Duke University Y. Cao, Duke University L. You, Duke University S. Zauscher, Duke University |
| Correspondent: | Click to Email |
The need for new energy harvesting techniques increases, and research in photovoltaics is becoming more and more essential. In particular, there has been a growing research effort focused on “green” manufacturing techniques, including the use of bacteria to precipitate semiconducting nanoparticles. We argue that E. coli has tremendous potential in the fabrication of patterned cadmium sulfide thin films for solar cell applications. Here we capitalize on the ability of genetically engineered E. coli to precipitate cadmium sulfide nanoparticles, through the expression of the Treponema denticola cysteine desulfhydrase gene,1 and we show that these genetically engineered E. coli have the ability to form patterns and monolayers on silica, glass, and indium tin oxide. Furthermore, we discuss the properties of the deposited cadmium sulfide nanoparticles and films, where we have used X-ray photoelectron spectroscopy, FTIR spectroscopy, X-ray diffraction, and scanning electron microscopy.
1. Wang, C.L., et al., Applied Microbiology and Biotechnology, 2001. (3): p. 425-430.