Academic Journal
The role of chirality and plastic crystallinity in the optical and mechanical properties of chlorosomes
| العنوان: | The role of chirality and plastic crystallinity in the optical and mechanical properties of chlorosomes |
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| المؤلفون: | Xinmeng Li, Francesco Buda, Huub J.M. de Groot, G. J. Agur Sevink |
| المصدر: | iScience, Vol 25, Iss 1, Pp 103618- (2022) |
| بيانات النشر: | Elsevier, 2022. |
| سنة النشر: | 2022 |
| المجموعة: | LCC:Science |
| مصطلحات موضوعية: | Chirality in analytical chemistry, Physics, Mechanical property, Science |
| الوصف: | Summary: The most efficient light-harvesting antennae found in nature, chlorosomes, are molecular tubular aggregates (TMAs) assembled by pigments without protein scaffolds. Here, we discuss a classification of chlorosomes as a unique tubular plastic crystal and we attribute the robust energy transfer in chlorosomes to this unique nature. To systematically study the role of supramolecular tube chirality by molecular simulation, a role that has remained unresolved, we share a protocol for generating realistic tubes at atomic resolution. We find that both the optical and the mechanical behavior are strongly dependent on chirality. The optical-chirality relation enables a direct interpretation of experimental spectra in terms of overall tube chirality. The mechanical response shows that the overall chirality regulates the hardness of the tube and provides a new characteristic for relating chlorosomes to distinct chirality. Our protocol also applies to other TMA systems and will inspire other systematic studies beyond lattice models. |
| نوع الوثيقة: | article |
| وصف الملف: | electronic resource |
| اللغة: | English |
| تدمد: | 2589-0042 00710652 |
| Relation: | http://www.sciencedirect.com/science/article/pii/S2589004221015881; https://doaj.org/toc/2589-0042 |
| DOI: | 10.1016/j.isci.2021.103618 |
| URL الوصول: | https://doaj.org/article/62c51ceab03e4cc193dd1d007106527a |
| رقم الانضمام: | edsdoj.62c51ceab03e4cc193dd1d007106527a |
| قاعدة البيانات: | Directory of Open Access Journals |
Full Text Finder | تدمد: | 25890042 00710652 |
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| DOI: | 10.1016/j.isci.2021.103618 |