2,2′‐Tethered Binaphthyl‐Embedded One‐Handed Helical Ladder Polymers: Impact of the Tether Length on Helical Geometry and Chiroptical Property DOI Creative Commons
Tomoyuki Ikai,

N. Mishima,

Takehiro Matsumoto

et al.

Angewandte Chemie International Edition, Journal Year: 2024, Volume and Issue: 63(10)

Published: Jan. 23, 2024

Synthetic breakthroughs diversify the molecules and polymers available to chemists. We now report first successful synthesis of a series optically-pure 2,2'-tethered binaphthyl-embedded helical ladder based on quantitative chemoselective ladderization by modified alkyne benzannulations using 4-alkoxy-2,6-dimethylphenylethynyl group as source, inaccessible conventional approach lacking 2,6-dimethyl substituents. Due defect-free helix formation, circular dichroism signal increased more than 6 times previously reported value. The resulting secondary structure can be fine-tuned controlling binaphthyl dihedral angle in repeating unit with variations 2,2'-alkylenedioxy tethering groups one carbon atom at time. optimization structures led strong circularly polarized luminescence high fluorescence quantum yield (28 %) dissymmetry factor (2.6×10

Language: Английский

Polymer informatics: Current status and critical next steps DOI Creative Commons
Lihua Chen, Ghanshyam Pilania, Rohit Batra

et al.

Materials Science and Engineering R Reports, Journal Year: 2020, Volume and Issue: 144, P. 100595 - 100595

Published: Dec. 26, 2020

Language: Английский

Citations

217
Chemical syntheses of bioinspired and biomimetic polymers toward biobased materials DOI
Mitra S. Ganewatta, Zhongkai Wang, Chuanbing Tang

et al.

Nature Reviews Chemistry, Journal Year: 2021, Volume and Issue: 5(11), P. 753 - 772

Published: Oct. 5, 2021

Language: Английский

Citations

199
Recent progress in covalent organic frameworks as light-emitting materials DOI
Shen Xu, Qichun Zhang

Materials Today Energy, Journal Year: 2021, Volume and Issue: 20, P. 100635 - 100635

Published: Jan. 2, 2021

Language: Английский

Citations

135
Polymer‐Based Circularly Polarized Luminescent Materials DOI
Hai Zhong, Biao Zhao, Jianping Deng

et al.

Advanced Optical Materials, Journal Year: 2023, Volume and Issue: 11(6)

Published: Jan. 19, 2023

Abstract Chiral materials capable of generating circularly polarized luminescence (CPL) have gained rapidly growing research interest by virtue their peculiar photophysical characteristics and far‐reaching applications. Amongst various CPL materials, polymer‐based constituted an important class owing to abundant types, ease manufacture, high thermal stability, as well as, tunable properties. The present work reviews the latest advances in constructing which are classified based on interaction modes between chiral luminescent components, that is, covalent interaction, non‐covalent without interactions. newly emerging categories nonconventional fluorescence‐based room temperature phosphorescence, with thermally activated delayed fluorescence properties also presented. Typical applications emitters organic light‐emitting diodes, information security encryption, optical sensors further discussed. Additionally, current challenges future perspectives this field summarized. This review article is expected stimulate more unprecedented achievements derived from thus promoting practical

Language: Английский

Citations

79
Circularly Polarized Light Responsive Materials: Design Strategies and Applications DOI
Yiping Liu, Pengyao Xing

Advanced Materials, Journal Year: 2023, Volume and Issue: 35(49)

Published: March 19, 2023

Abstract Circularly polarized light (CPL) with the end of optical vector traveling along circumferential trajectory shows left‐ and right‐handedness, which transmits chiral information to materials via complicated CPL–matter interactions. Materials circular dichroism respond CPL illumination selectively differential outputs that can be used design novel photodetectors. Racemic or achiral compounds under go through photodestruction, photoresolution, asymmetric synthesis pathways generate enantiomeric bias activity. By this strategy, helical polymers inorganic plasmonic nanostructures are synthesized directly, their intramolecular folding subsequent self‐assembly photomodulable as well. In aggregated state liquid crystal phase, sense dynamic molecular packing is sensitive brought by CPL, enabling amplification supramolecular scale. review, application‐guided strategies CPL‐responsive aimed systematically summarized discussed. Asymmetric synthesis, resolution, property‐modulation small organic compounds, polymers, nanoparticles, assemblies crystals highlighted based on important developments during last decades. Besides, applications light–matter interactions including detection biomedical also referred.

Language: Английский

Citations

68
Visible Helicity Induction and Memory in Polyallene toward Circularly Polarized Luminescence, Helicity Discrimination, and Enantiomer Separation DOI
Lei Xu,

Yong‐Jie Wu,

Run‐Tan Gao

et al.

Angewandte Chemie International Edition, Journal Year: 2023, Volume and Issue: 62(13)

Published: Feb. 6, 2023

Inspired by biological helices (e.g., DNA), artificial helical polymers have attracted intense attention. However, precise synthesis of one-handed from achiral materials remains a formidable challenge. Herein, series poly(biphenyl allene)s with controlled molar mass and low dispersity were prepared induced into using chiral amines alcohols. The helix was simultaneously memorized, even after the inducer removed. switchable induction processes visible to naked eye; exhibited blue emission (irradiated at 365 nm), whereas cyan clear circularly polarized luminescence. formed stable gels in various solvents helicity discrimination ability: same-handed self-healing, opposite-handed self-sorted. Moreover, could separate enantiomers via enantioselective crystallization high efficiency enantioselectivity.

Language: Английский

Citations

46
“Matching Rule” for Generation, Modulation and Amplification of Circularly Polarized Luminescence DOI
Hai Zhong, Xiaobin Gao, Biao Zhao

et al.

Accounts of Chemical Research, Journal Year: 2024, Volume and Issue: 57(8), P. 1188 - 1201

Published: April 5, 2024

ConspectusCircularly polarized luminescence (CPL) generated by chiral luminescent systems has sparked enormous attention in multidisciplinary field as it brings infinite potential for applications, such 3D optical displays, biological probes, and chiroptical sensors. Satisfying both the conditions of chirality (including fluorescence or phosphorescence) is a prerequisite constructing CPL materials. In this regard, whether organic, inorganic, hybrid systems, components generally involve effective coupling through covalent noncovalent bonds. For interactions, copolymerization monomers, although bonds provide high stability system, they inevitably tedious preparation procedures that connect together. bonds, take supramolecular assembly an example, elements achiral light-emitting units are transferred intermolecular their advantages include diversity building blocks, stimuli responsiveness brought well amplification signals coassembly. However, system may be poor, performance morphology difficult to predict. Gratifyingly, matching rule do not rely on together with interactions allows effortless construction, modulation, systems.In Account, we overview different strategies based rule, including fluorescence-selective absorption, circularly reflection, energy transfer (CPF-ET). Examples these illustrated focus helical polymers light appealing structures wide uses. instance, can convert racemic into one specific handedness simply overlapping polymer's circular dichroism (CD) spectra luminophore's emission spectra. employing selective reflection certain handedness's light, twisting power (HTP) polymer cholesteric liquid crystals (N*-LCs) gives glum. Additionally, CPF-ET, only spectrum donor absorption (or excitation) acceptor required overlap, no between two required. An outlook materials related which will avail optimization extension intriguing approach concludes Account. We hope Account offer insightful inspiration flourishing progress present exciting opportunities.

Language: Английский

Citations

35
Poly(α-l-lysine)-based nanomaterials for versatile biomedical applications: Current advances and perspectives DOI Creative Commons
Maochao Zheng,

Miao Pan,

Wancong Zhang

et al.

Bioactive Materials, Journal Year: 2020, Volume and Issue: 6(7), P. 1878 - 1909

Published: Dec. 13, 2020

Poly(α-l-lysine) (PLL) is a class of water-soluble, cationic biopolymer composed α-l-lysine structural units. The previous decade witnessed tremendous progress in the synthesis and biomedical applications PLL its composites. PLL-based polymers copolymers, till date, have been extensively explored contexts such as antibacterial agents, gene/drug/protein delivery systems, bio-sensing, bio-imaging, tissue engineering. This review aims to summarize recent advances nanomaterials these fields over last decade. first describes derivatives, followed by main text their translational studies. Finally, challenges perspectives are addressed.

Language: Английский

Citations

126
Synthetic Polypeptide Polymers as Simplified Analogues of Antimicrobial Peptides DOI
Pedro Salas‐Ambrosio,

Antoine Tronnet,

Pierre Verhaeghe

et al.

Biomacromolecules, Journal Year: 2020, Volume and Issue: 22(1), P. 57 - 75

Published: July 27, 2020

Antimicrobial peptides (AMPs) are naturally occurring macromolecules made of amino acids that potent broad-spectrum antibiotics with potential as novel therapeutic agents. This review aims to summarize the fundamental principles concerning structure and mechanism action these AMPs, in order guide design polymeric analogues organic chemistry can generate. Among those simplified analogues, this particularly focuses on called polypeptide polymers: they showing great by providing one best biomimetic bioactive structures for further biomaterials science applications.

Language: Английский

Citations

94
Recent advancements in enzyme-mediated crosslinkable hydrogels: In vivo-mimicking strategies DOI Creative Commons
Wonmoon Song, Junghyeon Ko,

Young Hwan Choi

et al.

APL Bioengineering, Journal Year: 2021, Volume and Issue: 5(2)

Published: April 1, 2021

Enzymes play a central role in fundamental biological processes and have been traditionally used to trigger various processes. In recent years, enzymes tune biomaterial responses modify the chemical structures at desired sites. These modifications allowed fabrication of hydrogels for tissue engineering therapeutic applications. This review provides comprehensive overview advancements use hydrogel fabrication. Strategies enhance enzyme function improve biocompatibility are described. addition, we describe future opportunities challenges production enzyme-mediated crosslinkable hydrogels.

Language: Английский

Citations

59