Article
Chemistry, Multidisciplinary
Zhonghua Liu, Xuejuan Wang, Qing Chen, Feiyan Ma, Yongwei Huang, Yijian Gao, Qingyuan Deng, Zeng-Ying Qiao, Xiaoyi Xing, Jianling Zhu, Feng Lu, Hao Wang
Summary: The study presents a proof-of-concept demonstration of twisted perylene-derived PDIC-NC for achieving lung-specific drug delivery, targeting mitochondria as a cellular respiration inhibitor to induce apoptosis and endoplasmic reticulum stress in lung cancer cells, showing promising antitumor effects in vivo.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2021)
Article
Chemistry, Multidisciplinary
Ben Teichmann, Ana-Maria Krause, Mei-Jin Lin, Frank Wuerthner
Summary: This study introduces the concept of tailored chiral pi-surfaces and demonstrates enantioselective binding through pure van-der-Waals interactions. The BPTI receptor with a contorted pi-scaffold achieved significant enantiodifferentiation with (P)- and (M)-[6]helicene. The enantioselective recognition is observable by the naked eye.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2022)
Article
Optics
Min Zhang, Danni Hao, Shuai Wang, Rui Li, Shou Wang, Yanqing Ma, Ramiro Moro, Lei Ma
Summary: This paper reports a subwavelength chiral metamaterial structure with tunable geometries and compositions for chiral biochemical sample detection. The chiroptical response of the metamaterial can be adjusted by manipulating the number of stacking layers and the twisted angle of the periodic unit. Experimental and numerical analysis reveal that the chiroptical response originates from the optical resonances of the gold disks and the adjacent array layers. The chiral metamaterial can achieve label-free detection of proline in biological samples and enantio-discrimination of chiral molecules, and the transmission circular dichroism (TCD) intensity can be regulated by the analyte concentration.
Article
Chemistry, Multidisciplinary
Ina Heckelmann, Zifei Lu, Joseph C. A. Prentice, Florian Auras, Tanya K. Ronson, Richard H. Friend, Jonathan R. Nitschke, Sascha Feldmann
Summary: We report the self-assembly of a supramolecular pseudo-cube formed from six perylene diimides (PDIs), which suppresses aggregation and allows for non-aggregated, monomer-like properties. The stabilized excited state in the cage enables delayed fluorescence, acting as an excited-state reservoir. This self-assembly technique provides a powerful tool for controlling the electronic properties of chromophores and advancing molecular electronics devices.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2023)
Article
Computer Science, Information Systems
Peter Beelen, Sven Puchinger, Johan Rosenkilde
Summary: This article presents a new construction of evaluation codes called twisted Reed-Solomon codes in the Hamming metric. While twisted RS codes may not be MDS codes, our construction yields several families of MDS codes. Additionally, we introduce a highly effective decoder for the codes.
IEEE TRANSACTIONS ON INFORMATION THEORY
(2022)
Article
Chemistry, Applied
Xu Liang, Syed Najeeb-Uz-Zaman Haider, Yingjie Niu, Jianfeng Li, Weihua Zhu
Summary: The chiral perylene-porphyrin hybrids exhibit significant expansion in UV-vis absorption, fluorescence, and circular dichroism spectra, especially in the visible region. The optical and redox properties were analyzed in detail by comparing results obtained via optical spectroscopy and electrochemistry.
Article
Mathematics
Adel Alahmadi, Patrick Sole, Ramy Taki Eldin
Summary: In this paper, a classic lower bound on the minimum Hamming distance of constacyclic codes over finite fields is introduced, which is analogous to the well-known BCH bound for cyclic codes. Some minimum-distance lower bounds for single-generator quasi-twisted (QT) codes are proposed based on this BCH-like bound. A novel bound that takes into account the Chinese remainder theorem approach to QT codes as well as the BCH bound of constacyclic codes is also proposed, which does not require a specific form of code generator or calculations in any extension field.
Article
Chemistry, Multidisciplinary
Shuqi Chen, Shishi Feng, Albert J. J. Markvoort, Cankun Zhang, Enyang Zhou, WanZhen Liang, Hui-Jun Zhang, Yun-Bao Jiang, Jianbin Lin
Summary: A quadruple assembly was successfully constructed by self-assembly, in which four identical dye molecules were divided into two different aggregate states, achieving intelligent allocation of labor. This finding is expected to advance the rational design of dye stacks to emulate the functions of natural light-harvesting systems.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2023)
Article
Chemistry, Multidisciplinary
Wei Fan, Taisuke Matsuno, Yi Han, Xuhui Wang, Qifeng Zhou, Hiroyuki Isobe, Jishan Wu
Summary: The successful synthesis and chiral resolution of twisted carbon nanobelts with a figure-eight configuration have been reported. X-ray crystallographic analysis and calculations confirmed their twisted structures.
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
(2021)
Article
Chemistry, Physical
Chenglong Jia, Min Chen, Alexander F. Schaeffer, Jamal Berakdar
Summary: Antiferromagnetic materials provide a platform for ultrafast information processing with low cross-talks and compatibility with existing technology. Predicted chiral magnonic eigenmodes in AFM waveguides can be used for multiplex magnonic computing.
NPJ COMPUTATIONAL MATERIALS
(2021)
Review
Chemistry, Multidisciplinary
Zexiang Han, Fei Wang, Juehan Sun, Xiaoli Wang, Zhiyong Tang
Summary: Artificial chiral nanostructures have been extensively studied for their unique chiroptical activities. Controlled twisted stacking of nanomaterials has emerged as a general strategy to introduce optical chirality into achiral solid-state systems. Recent progress in planar chiral metasurfaces is summarized, discussing the building blocks, fabrication methods, as well as circular dichroism and its modulation in twisted stacked nanostructures. The review highlights the growing applications of these chiral metasurfaces, including polarization conversion, information encryption, chiral sensing, and as an engineering platform for hybrid metadevices. Future prospects are also provided.
ADVANCED MATERIALS
(2023)
Article
Quantum Science & Technology
Julio Carlos Magdalena de la Fuente, Nicolas Tarantino, Jens Eisert
Summary: Long-ranged entangled topological phases can protect quantum information from unwanted local errors, but using general topological orders for practical error correction remains largely unfulfilled. This work shows that Abelian twisted quantum double models can be used for quantum error correction, establishing a new connection between condensed matter physics and quantum information theory.
Article
Chemistry, Multidisciplinary
Ferran Esteve, Belen Altava, Eduardo Garcia-Verdugo, Santiago Luis, Jean-Marie Lehn
Summary: Taking advantage of dynamic covalent chemistry, four different cages were synthesized, and high yields of macrocyclic structures were obtained by adjusting solvents and concentrations. Chirality induction was achieved through encapsulation of water molecules, and the self-sorting properties of pseudopeptides were studied.
Article
Chemistry, Multidisciplinary
ShengNan Zhang, Bo Xie, QuanSheng Wu, Jianpeng Liu, Oleg V. Yazyev
Summary: We propose chiral decomposition rules for twisted N + M multilayer graphene configurations, which include arbitrary stacking order and mutual twist. In the chiral limit at the magic angle, the low-energy bands of these systems consist of chiral pseudospin doublets energetically entangled with two flat bands per valley induced by the moire superlattice potential. Numerical calculations based on realistic parametrization support the analytic construction. We also demonstrate that vertical displacement fields can open energy gaps between the pseudospin doublets and the two flat bands, allowing the flat bands to carry nonzero valley Chern numbers. These findings provide guidelines for the rational design of topological and correlated states in generic twisted graphene multilayers.
Review
Polymer Science
Randall A. Scanga, James F. Reuther
Summary: Significant advances have been made in the field of chiral helical polymers, with emergent properties of chiral nanoobjects derived from self-assembly and potential for new functional devices. Lessons from natural systems provide parallels and opportunities for further development in the field.