From Bioconjugation to Self-Assembly in Nanobiotechnology: Quantum Dots Trapped and Stabilized by Toroid Protein Yoctowells

Andreas Schreiber; Ying Yuan; Matthias C. HuberRalf ThomannAndreas ZieglerHelmut ColfenJorn DengjelMichael KrugerStefan M. Schiller

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From Bioconjugation to Self-Assembly in Nanobiotechnology: Quantum Dots Trapped and Stabilized by Toroid Protein Yoctowells

机译：From Bioconjugation to Self-Assembly in Nanobiotechnology: Quantum Dots Trapped and Stabilized by Toroid Protein Yoctowells

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Conjugation of quantum dots (QDs) with proteins is applicable for biosensing and imaging in biomedical applications but also for the confined assembly of various nanostructures. Here, the conjugation of CdSe QDs ranging from 2.5 up to 9.5 nm with Hcp1, a yoctowell forming hexameric core protein of Pseudomonas aeruginosa, is described. Defined structures ranging from single QDs trapped within the donut-shaped hexameric protein cavity over "globular" multi-toroid architectures up to photonic wires of 850nm in length and 9 nm in width are self-assembled while preserving the native hexameric structure of the protein conserving the photoluminescence intensity of the QDs in aqueous solution for more than 3 month.

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《Advanced Engineering Materials》 |2012年第6期|B344-B350|共7页
作者
Andreas Schreiber; Ying Yuan; Matthias C. HuberRalf ThomannAndreas ZieglerHelmut ColfenJorn DengjelMichael KrugerStefan M. Schiller;
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School of Soft Matter Research, University of Freiburg;

Freiburg Materials Research Centre, University of Freiburg;

University of UlmDepartment of Chemistry, University of KonstanzSchool of Life Science-LIFENET, University of Freiburg;

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正文语种英语
中图分类工程材料学;
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From Bioconjugation to Self-Assembly in Nanobiotechnology: Quantum Dots Trapped and Stabilized by Toroid Protein Yoctowells

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