光致发光
肽
纳米结构
发光
材料科学
转化(遗传学)
环肽
化学物理
纳米尺度
分子生物物理学
量子点
化学
纳米技术
结晶学
光电子学
生物化学
基因
作者
Nadav Amdursky,Amir Handelman,G. Rosenman
摘要
In this letter we present a variation in the optical properties of bio-organic peptide nanostructures, which are induced by molecular transformation. The self-assembled tubular structures are formed from short aromatic di-peptides. Upon thermal induction, the structure changes its molecular conformation, and the linear di-peptide closes into a cyclic peptide. This irreversible transition changes the molecular packing at the nanoscale, which results in reconstruction of the native quantum dot-like packing to quantum well-like packing and the generation of blue luminescence. We further show that the same cyclic peptide can exhibit different photoluminescence properties according to the formed structure.
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