دورية أكاديمية
Bioinspired, Cholesteric Liquid-Crystal Reflectors with Time-Controlled Coexisting Chiral and Achiral Structures
| العنوان: | Bioinspired, Cholesteric Liquid-Crystal Reflectors with Time-Controlled Coexisting Chiral and Achiral Structures |
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| المؤلفون: | Boyon, Cécilia, Soldan, Vanessa, Mitov, Michel |
| المساهمون: | Centre d'élaboration de matériaux et d'études structurales (CEMES), Institut National des Sciences Appliquées - Toulouse (INSA Toulouse), Institut National des Sciences Appliquées (INSA)-Université de Toulouse (UT)-Institut National des Sciences Appliquées (INSA)-Université de Toulouse (UT)-Institut de Chimie de Toulouse (ICT), Institut de Recherche pour le Développement (IRD)-Université Toulouse III - Paul Sabatier (UT3), Université de Toulouse (UT)-Université de Toulouse (UT)-Institut de Chimie - CNRS Chimie (INC-CNRS)-Centre National de la Recherche Scientifique (CNRS)-Institut National Polytechnique (Toulouse) (Toulouse INP), Université de Toulouse (UT)-Institut de Recherche pour le Développement (IRD)-Université Toulouse III - Paul Sabatier (UT3), Université de Toulouse (UT)-Institut de Chimie - CNRS Chimie (INC-CNRS)-Centre National de la Recherche Scientifique (CNRS)-Institut National Polytechnique (Toulouse) (Toulouse INP), Université de Toulouse (UT)-Centre National de la Recherche Scientifique (CNRS), Nano-Optique et Nanomatériaux pour l'optique (CEMES-NeO), Université de Toulouse (UT)-Centre National de la Recherche Scientifique (CNRS)-Institut National des Sciences Appliquées - Toulouse (INSA Toulouse), Centre de Biologie Intégrative (CBI), Université Toulouse III - Paul Sabatier (UT3), Université de Toulouse (UT)-Université de Toulouse (UT)-Centre National de la Recherche Scientifique (CNRS), ANR-17-CE30-0025,COLEOPTIX,Cristaux liquides cholestériques bio-inspirés aux propriétés optiques inédites(2017) |
| المصدر: | ISSN: 1944-8244. |
| بيانات النشر: | HAL CCSD American Chemical Society |
| سنة النشر: | 2021 |
| المجموعة: | HAL Université Côte d'Azur |
| مصطلحات موضوعية: | cholesteric liquid crystals photonic crystals smart labels time−temperature indicators structural color time-responsive reflective color bioinspiration structure-gradient materials, [PHYS]Physics [physics], [PHYS.COND.CM-MS]Physics [physics]/Condensed Matter [cond-mat]/Materials Science [cond-mat.mtrl-sci], [PHYS.COND.CM-SCM]Physics [physics]/Condensed Matter [cond-mat]/Soft Condensed Matter [cond-mat.soft], [SDV.BA.ZI]Life Sciences [q-bio]/Animal biology/Invertebrate Zoology |
| الوصف: | International audience ; The twisted structures of the chitin-based cuticle of beetles confer specific optical characteristics on them. Intrigued by the observation of Bragg gratings with a depth-dependent periodicity in the cuticle of Chrysina beetles, we determine the experimental conditions leading to their transcription into cholesteric liquid-crystal oligomers. We correlate the optical properties of reflectors thus produced with their internal morphology, as observed by transmission electron microscopy. With the use of a single parameter, thermal annealing time, the reflection color is made time-tunable. Different spectral bands and reflection colors from golden yellow to NIR are available, and the irreversibility of the final color is reached at the end. On the basis of the design concept and these properties, these hybrid chiral–achiral materials inspire the fabrication of smart reflective labels. When encapsulated in the package of a product to be kept under cold conditions, the label records the history of the product conservation. Two kinds of information based on color changes are recorded as follows: qualitative information reporting that the product was kept outside of the specified storage temperature and quantitative information giving an indication of the time elapsed since the temperature exceeded the storage temperature of the product. |
| نوع الوثيقة: | article in journal/newspaper |
| اللغة: | English |
| العلاقة: | hal-03281412; https://hal.science/hal-03281412Test; https://hal.science/hal-03281412/documentTest; https://hal.science/hal-03281412/file/ACS%20AMI%202021_Accepted%20version.pdfTest |
| DOI: | 10.1021/acsami.1c08218 |
| الإتاحة: | https://doi.org/10.1021/acsami.1c08218Test https://hal.science/hal-03281412Test https://hal.science/hal-03281412/documentTest https://hal.science/hal-03281412/file/ACS%20AMI%202021_Accepted%20version.pdfTest |
| حقوق: | info:eu-repo/semantics/OpenAccess |
| رقم الانضمام: | edsbas.2F915D41 |
| قاعدة البيانات: | BASE |
| DOI: | 10.1021/acsami.1c08218 |
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