25 papers · ranked by Valyu relevance
Mario Hentschel, Martin Schaeferling, Xiaoyang Duan, Harald Gießen + 1 more
'Na Liu'] We present a comprehensive overview of chirality and its optical manifestation in plasmonic nanosystems and nanostructures. We discuss top-down fabricated structures that range from solid metallic nanostructures to groupings of metallic nanoparticles arranged in three dimensions. We present the large variety…
Jincheng Ni, Chaowei Wang, Chenchu Zhang, Yanlei Hu + 6 more
'Zhaoxin Lao' 'Bing Xu' 'Jiawen Li' 'Dong Wu' 'Jiaru Chu'] Optical vortices, as a kind of structured beam with helical phase wavefronts and 'doughnut' shape intensity distribution, have been used for fabricating chiral structures in metal and spiral patterns in anisotropic polarization-dependent azobenzene polymer.…
Yutao Sang, Minghua Liu
One basic principle regulating self-assembly is associated with the asymmetry of constituent building blocks or packing models. Using asymmetry to manipulate molecular-level devices and hierarchical functional materials is a promising topic in materials sciences and supramolecular chemistry. Here, exemplified by recent…
Jincheng Ni, Zhongyu Wang, Zhaoxin Lao, Yanlei Hu + 7 more
'Shengyun Ji' 'Jiawen Li' 'Zhixiang Huang' 'Dong Wu' 'Cheng‐Wei Qiu' 'Jiaru Chu'] Circular dichroism (CD) induced by spin angular momentum of light is vital to investigate the chirality of microscopic objects such as molecules, proteins and metamaterials. However, orbital angular momentum (OAM) of light failed to…
Maozhong Sun, Xiuxiu Wang, Xiao Guo, Liguang Xu + 2 more
'Chuanlai Xu'] In the rapidly expanding fields of nanoscience and nanotechnology, there is considerable interest in chiral nanomaterials, which are endowed with unusually strong circular dichroism. In this review, we summarize the principles of organization underlying chiral nanomaterials and generalize the recent…
Peter Banzer, Paweł Woźniak, Uwe Mick, Israel De Leon + 1 more
'Robert W. Boyd'] Chirality is an intriguing property of certain molecules, materials or artificial nanostructures, which allows them to interact with the spin angular momentum of the impinging light field. Due to their chiral geometry, they can distinguish between left- and right-hand circular polarization states or…
Da-Seul Kim, Myounggun Kim, Soonmin Seo, Ju-Hyung Kim + 1 more
'Giuseppina Luciani'] Diverse chiral structures observed in nature find applications across various domains, including engineering, chemistry, and medicine. Particularly notable is the optical activity inherent in chiral structures, which has emerged prominently in the field of optics. This phenomenon has led to a wide…
Xiaoning Liu, Guoliang Huang, Gengkai Hu
In continuum mechanics, the non-centrosymmetric micropolar theory is usually used to capture the chirality inherent in materials. However when reduced to a two dimensional (2D) isotropic problem, the resulting model becomes non-chiral. Therefore, influence of the chiral effect cannot be properly characterized by…
Farbod Shirinichi, Yichen Liu, Runyao Zhu, James Carpenter + 3 more
Chirality in two-dimensional nanomaterials provides a powerful lever to control biological interfaces, yet the structural origins of nanoscale chirality remain poorly understood. Here, we systematically investigate chiral ligand modulated graphene quantum dots (GQDs) and reveal how ligand stereochemistry and edge…
Shengfu Wu, Xin Song, Cong Du, Minghua Liu
Chirality is a fundamental property in nature and is widely observed at hierarchical scales from subatomic, molecular, supramolecular to macroscopic and even galaxy. However, the transmission of chirality across different length scales and the expression of homochiral nano/microstructures remain challenging. Herein, we…
Authors not listed
Spontaneous chiral symmetry breaking remains a fascination in chemistry, biology, materials science, and even astronomy. Chiral symmetry breaking usually requires intrinsic molecular chirality or extrinsic chiral sources but remains rare in non-chiral systems. Here, we reveal a ubiquitous, entropy-driven chiral…
Biao Zhao, Shenghua Yang, Jianping Deng, Kai Pan
Chirality has become an important research subject. The research areas associated with chirality are under substantial development. Meanwhile, graphene is a rapidly growing star material and has hard-wired into diverse disciplines. Rational combination of graphene and chirality undoubtedly creates unprecedented…
Authors not listed
Chirality at the nanoscale has emerged as a powerful design parameter for engineering light-matter interactions, catalytic activity, and biological recognition. Among inorganic nanomaterials, plasmonic gold nanostructures are particularly attractive owing to their tunable optical resonances and compatibility with…
Arabinda Behera, Gaurav Kumar, Sk Ashif Akram, Anirban Sain
Chiral, rod-like molecules can self-assemble into cylindrical membrane tubules and helical ribbons. They have been successfully modeled using the theory of chiral nematics. Models have also predicted the role of chiral lipids in forming nanometer-sized membrane buds in the cell. However, in most theoretical studies…
S Aravinth, Neeraj Pant, Partha P. Mondal
Chiral fingerprints are unique to a molecule and convey information related to binding sites, conformation, and its immediate chemical environment. Deciphering these information is expected to aid a better understanding of the biological processes at the very molecular scale. Here, we present a new technique called…
S Aravinth, Neeraj Pant, Partha P. Mondal
Chiral fingerprints are unique to a molecule and convey information related to binding sites, conformation, and its immediate chemical environment. Deciphering this information is expected to aid a better understanding of the biological processes (protein trafficking, kinetics, and aggregation) in a cellular…
Takaki Yamamoto, Tomoki Ishibashi, Yuko Mimori-Kiyosue, Sylvain Hiver + 4 more
The chirality of tissues and organs is essential for their function and development. Tissue-level chirality derives from the chirality of individual cells that comprise the tissue, and cellular chirality is considered to emerge through the organization of chiral molecules within the cell. However, the principle of how…
Sayako Inoué, Hisako Sato, Akihiko Yamagishi
The surface structures of microtrichia on the hindwings of Verspa Crabro (European hornets) were observed by scanning electron microscopy (SEM). Helical grooves were seen in the microtrichia on both the ventral and dorsal sides. Their helical orientation varied spatially across the wing surface but were the same in the…
Satya Prakash Pradhan, Prashant Saxena
We present a growth model for special Cosserat rods that allows for induced rotation of cross-sections. The growth law considers two controls, one for lengthwise growth and other for rotations. This is explored in greater detail for straight rods with helical and hemitropic material symmetries by introduction of a…
ABHIK PAUL, Subhadip Roy
Chirality is a widespread structural characteristic found in nature and plays a vital role in the structure and functioning of almost all biological systems. Nevertheless, the translation of chirality into synthetic systems is highly intricate, yet captivating, as it not only applies fundamental understanding but also…
Henrik Tappert, Zengwen Li, Jasmin Seibert, Christoph Zippel + 2 more
Structuring soft matter with precise control over molecular arrangements, nanoscale morphologies, especially aiming at functional polymers featuring chirality or helicity, responsiveness, and other features, has been a great research objective, which yet remains a challenging task. In this research work, we developed…
John Maynard, Peter Gallagher, David Lozano, Patrick Butler + 1 more
Chirality, the property of objects that are distinct from their own mirror image, is important in many scientific areas but particularly chemistry, where the appearance of molecular chirality because of rigid arrangements of atoms in space famously influences a molecule’s biological properties. Less generally…
Emma Wolpert, Kim Jelfs
Molecular cages contain an internal cavity designed to encapsulate other molecules, resulting in applications in molecular separation, gas storage, and catalysis. Introducing chirality in cage molecules can improve the selective separation of chiral molecules and add new functionalities due to the realisation of chiral…
John Maynard, Peter Gallagher, David Lozano, Patrick Butler + 1 more
Chirality, the property of objects that are distinct from their own mirror image, is important in many scientific areas but particularly chemistry, where the appearance of molecular chirality because of rigid arrangements of atoms in space famously influences a molecule’s biological properties. Less generally…
Authors not listed
Hyperstructures and their hierarchical extensions [1]—SuperHyperStructures—provide a versatile formalism for modeling multi-layered and complex phenomena [2, 3]. A MicroStructure is a measurable mapping that assigns to each material point a single local state, representing attributes such as phase, crystal orientation…