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- Title
Mechanism of Fluorescence Enhancement of Biosynthesized XFeO-BiFeO (X = Cr, Mn, Co, or Ni) Membranes.
- Authors
Bian, Liang; Li, Hai-long; Dong, Hai-liang; Dong, Fa-qin; Song, Mian-xin; Wang, Li-sheng; Hou, Wen-ping; Gao, Lei; Zhang, Xiao-yan; Zhou, Tian-liang; Sun, Guang-ai; Li, Xin-xi; Xie, Lei
- Abstract
Ferrites-bismuth ferrite is an intriguing option for medical diagnostic imaging device due to its magnetoelectric and enhanced near-infrared fluorescent properties. However, the embedded XFO nanoparticles are randomly located on the BFO membranes, making implementation in devices difficult. To overcome this, we present a facile bio-approach to produce XFeO-BiFeO (XFO-BFO) (X = Cr, Mn, Co, or Ni) membranes using Shewanella oneidensis MR-1. The perovskite BFO enhances the fluorescence intensity (at 660 and 832 nm) and surface potential difference (−469 ~ 385 meV and −80 ~ 525 meV) of the embedded spinel XFO. This mechanism is attributed to the interfacial coupling of the X-Fe (e or h) and O-O (h) interfaces. Such a system could open up new ideas in the design of environmentally friendly fluorescent membranes.
- Subjects
FLUORESCENCE; BIOSYNTHESIS; BISMUTH compounds; FERRITES; ARTIFICIAL membranes
- Publication
Nanoscale Research Letters, 2016, Vol 11, Issue 1, p1
- ISSN
1931-7573
- Publication type
Article
- DOI
10.1186/s11671-016-1747-4