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嵌段六聚体肽纳米点。

Syndiotactic hexamer peptide nanodots.

机构信息

Department of Biosciences and Bioengineering, Indian Institute of Technology Guwahati, Guwahati, 781039, India.

Department of Chemical Engineering, Indian Institute of Technology Guwahati, Guwahati, 781039, India.

出版信息

Eur Biophys J. 2022 Sep;51(6):483-491. doi: 10.1007/s00249-022-01610-3. Epub 2022 Jul 22.

DOI:10.1007/s00249-022-01610-3
PMID:35876872
Abstract

Spatial confinement of excitons in the nano-crystalline region of semiconducting nanostructures differ significantly from the optoelectronic properties exhibited by the bulk material. We report spike-like absorption observed in the UV spectrum of a phenylalanine hexamer peptide [(Ff)-OH] nano-assembly, which may be attributed to the spatial confinement of electrons to the dimension of quantum dots. Interdependency of the UV and PLE spectrum of the peptide confirms the existence of quantum confinement in (Ff)-OH nano-assemblies.

摘要

在半导体纳米结构的纳米晶区域中，激子的空间限制与体材料表现出的光电性质有很大的不同。我们报告了在苯丙氨酸六聚体肽 [(Ff)-OH] 纳米组装体的紫外光谱中观察到的尖峰状吸收，这可能归因于电子被限制在量子点的尺寸范围内。肽的紫外和光致发光光谱的相互依存关系证实了 (Ff)-OH 纳米组装体中存在量子限制。

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