Article
Nanoscience & Nanotechnology
Md Wazedur Rahman, Seyedamin Firouzeh, Sandipan Pramanik
Summary: Functionalizing carbon nanotubes with DNA strands in a helical manner can polarize carrier spins through the CISS effect. The conduction mechanism is strongly localized due to DNA functionalization, and the observed magnetoresistance arises from interference effects between different hopping paths. CISS-induced spin polarization increases carrier localization length significantly in the low temperature range, impacting magnetoresistance in a non-trivial way not seen in conventional systems.
Article
Chemistry, Physical
Weilu Gao, Davoud Adinehloo, Xinwei Li, Ali Mojibpour, Yohei Yomogida, Atsushi Hirano, Takeshi Tanaka, Hiromichi Kataura, Ming Zheng, Vasili Perebeinos, Junichiro Kono
Summary: This study investigates the chirality-dependent electronic transport properties of single-chirality SWCNT films, revealing pronounced electronic localization phenomena and providing insights for designing and deploying macroscopic SWCNT solid-state devices. The research highlights the importance of understanding chirality-dependent behaviors in SWCNTs for various applications.
Article
Chemistry, Multidisciplinary
Md Wazedur Rahman, Mari C. Manas-Torres, Seyedamin Firouzeh, Sara Illescas-Lopez, Juan Manuel Cuerva, Modesto T. Lopez-Lopez, Luis Alvarez de Cienfuegos, Sandipan Pramanik
Summary: Supramolecular short-peptide assemblies are important biomaterials used in biomedical applications. These materials can self-assemble into chiral hierarchical structures triggered by various stimuli. The resulting supramolecular chirality can modulate protein and cell interactions. Recently, research has focused on developing chiral materials with potential spintronic applications. By combining different chiral sources, such as homochiral peptides and glucono-delta-lactone, researchers have shown that the supramolecular chirality and spin signal can be modulated. This study opens up new possibilities for developing CISS-based spintronic devices and circuits.
Article
Chemistry, Multidisciplinary
Taishi Nishihara, Akira Takakura, Keisuke Matsui, Kenichiro Itami, Yuhei Miyauchi
Summary: Researchers have statistically verified the chirality distribution of 413 individual as-grown single-walled carbon nanotubes using broadband Rayleigh spectroscopy. The results show an increasing trend in chirality distribution with a distinct anomaly at approximately 20 degrees, which can be explained by the influence of armchair-shaped site configurations at the catalyst-nanotube interface growth rate.
Review
Chemistry, Physical
Marianna Kharlamova, Maria G. Burdanova, Maksim Paukov, Christian Kramberger
Summary: This review focuses on the importance of synthesizing high-quality chirality-pure single-walled carbon nanotubes, as well as research directions such as chirality-selective synthesis, sorting of SWCNTs, and applications of separated SWCNTs in various fields.
Article
Nanoscience & Nanotechnology
Sophia Zanoni, Brennan P. Watts, Kevin Tvrdy
Summary: Despite the commercial availability of many different hydrogel formulations, the effective gel-based purification of single-walled carbon nanotubes (SWNT) remains exclusive to Sephacryl S-200. In this study, various commercially available gels and custom-synthesized gels were investigated for their ability to purify SWNT, with findings showing that different gels exhibit unique SWNT chiral selectivity and physiochemical properties. Superose 6 was found to adsorb more SWNT than Sephacryl S-200 and exhibit a unique preference for specific SWNT chiralities, providing insights into the rational design of gels for SWNT purification.
ACS APPLIED MATERIALS & INTERFACES
(2021)
Article
Chemistry, Multidisciplinary
Rahul Nag, Yutaka Okazaki, Antoine Scalabre, Zakaria Anfar, Sylvain Nlate, Thierry Buffeteau, Reiko Oda, Emilie Pouget
Summary: The interaction between dicationic gemini surfactants and tartrate enantiomers depends on the cooperative effect between the chiral molecular organization/conformation of the surfactants and the rigid chiral nanospace formed by the helical silica walls.
CHEMICAL COMMUNICATIONS
(2022)
Article
Biochemistry & Molecular Biology
Shrishti Singh, Heena R. Divecha, Abimbola Ayoola, Marvin Xavierselvan, Jack Devlin, Isaac Macwan
Summary: Carbon nanotubes (CNT) have diverse applications in electronics, sensors, and energy storage. Sorting CNTs into metallic and semiconducting types is crucial for their specific applications, but existing techniques are either expensive or inefficient. In this study, a novel technique using a library of tripeptides with different flanking residues was utilized for large-scale CNT separation. Molecular dynamics simulations revealed that certain tripeptide combinations had high affinity for metallic or semiconducting CNTs based on the flanking residues. The presence of interfacial water molecules and hydrogen bonding ability of tripeptides played significant roles in CNT sorting.
Article
Chemistry, Multidisciplinary
Zhiwei Lin, Yoona Yang, Anand Jagota, Ming Zheng
Summary: In this article, a method for systematic search of DNA sequences for sorting single-chirality SWCNTs is proposed, based on the sequence-dependent recognition between DNA and SWCNTs. This approach combines machine learning and experimental investigation to achieve a high efficiency and accuracy in DNA sequence screening, improving the number of resolving sequences and the success rate of finding them. The resolving sequence patterns determined from short sequences can be extended to sequence search in longer DNA subspaces.
Article
Chemistry, Physical
Xin Luo, Xiaojun Wei, Lin Liu, Zhihui Yao, Feibing Xiong, Weiya Zhou, Sishen Xie, Huaping Liu
Summary: In this work, a novel sodium hyodeoxycholate (SHC) surfactant was used for the separation of single-chirality single-wall carbon nanotubes (SWCNTs). With optimized concentrations of the SHC-based mixed surfactants, chirality-selective adsorption and desorption of SWCNTs on a gel column were achieved. Single-chirality (6,5) SWCNTs were successfully separated with a purity estimated to be 97%, surpassing most reported purities for traditional surfactant-based separations. The high-purity chirality separation demonstrated in this work lays an important foundation for the industrial production and applications of single-chirality SWCNTs.
Article
Chemistry, Multidisciplinary
Sharon Rechnitz, Tal Tabachnik, Shlomo Shlafman, Michael Shlafman, Yuval E. Yaish
Summary: This article addresses the characteristics and phenomena of bistable resonators based on carbon nanotubes, finding inaccuracies in the common approach to calculating vibrational resonance amplitude and studying the latching phenomenon and inner shell sliding.
Article
Engineering, Mechanical
Ahmad Reza Ghasemi, Mahdi Soleymani
Summary: This study investigates the buckling of carbon nanotubes reinforced circular cylindrical composite shells under hydrostatic pressure, showing that reinforcing with 5% carbon nanotubes can increase buckling resistance by about 10%. The impact of material type and volume fraction on fiber metal laminates cylinders is also illustrated, with Az91 and Ti6AlV having approximately 15% more effect than Al2024 on buckling resistance.
JOURNAL OF SANDWICH STRUCTURES & MATERIALS
(2021)
Article
Multidisciplinary Sciences
Dehua Yang, Linhai Li, Xiaojun Wei, Yanchun Wang, Weiya Zhou, Hiromichi Kataura, Sishen Xie, Haping Liu
Summary: A method to separate SWCNTs by chiral angle through temperature control of a binary surfactant system was reported in this study, resulting in efficient separation of 11 single-chirality SWCNT species including multiple zigzag and near-zigzag species at a submilligram scale. Lowering the temperature induced selective adsorption and reorganization of the cosurfactants on SWCNTs with different chiral angles, amplifying their interaction difference with gel. This work is believed to be a significant step towards industrial separation of single-chirality zigzag and near-zigzag SWCNTs.
Article
Engineering, Mechanical
Bruno Faria, Nuno Silvestre
Summary: Phenine Nanotubes (PhNT) have lower mechanical properties compared to carbon nanotubes (CNTs), but they offer advantages in terms of higher tensile strain endurance and flexible sidewalls due to superior porosity.
EXTREME MECHANICS LETTERS
(2022)
Article
Physics, Applied
N. N. Konobeeva, G. Almohammad Alhousen, M. B. Belonenko
Summary: This paper investigates the propagation of electromagnetic pulse in single-walled carbon nanotubes (chiral type) and reveals the existence of the second harmonic generation mode that was not observed initially. It proposes using this effect to generate entangled photons with a high second harmonic output, and studies the dependence of the second harmonic output on the problem parameters.
INTERNATIONAL JOURNAL OF MODERN PHYSICS B
(2023)
Article
Materials Science, Multidisciplinary
Mir Abbas Roudbari, Yingyan Zhang, Yihe Zhang, Sritawat Kitipornchai, Jie Yang
Summary: This paper presents size-dependent continuum mechanics models for the nonlinear band gap characteristics of a piezo-electro-magnetic phononic crystal micro and nanobeam under different control methods. The effects of size-dependent factors on the band gap properties are analyzed using various models and methods. The study finds that all band gap frequencies can be controlled by the applied physical fields and elastic medium.
MECHANICS OF ADVANCED MATERIALS AND STRUCTURES
(2023)
Article
Computer Science, Interdisciplinary Applications
Shaoyu Zhao, Yingyan Zhang, Yihe Zhang, Wei Zhang, Jie Yang, Sritawat Kitipornchai
Summary: This paper proposes a data-driven modeling approach to accurately predict the mechanical properties of graphene-reinforced nanocomposites with vacancy defects. The developed micromechanics models based on molecular dynamics (MD) databases and genetic programming (GP) algorithm provide efficient predictions of thermo-elastic properties with high coefficients of determination. The models are also applied in analyzing the structural behaviors of defective graphene reinforced composite beams.
ENGINEERING WITH COMPUTERS
(2023)
Article
Nanoscience & Nanotechnology
Henin Zhang, Jun Ma, Yingyan Zhang, Jie Yang
Summary: This research investigates the enhanced flexibility of graphene under nanoindentation using the kirigami technique. The study finds that graphene kirigami designed with optimal cut parameters can sustain over 45% larger out-of-plane deformation compared to pristine graphene, while reducing the maximum impact load by 20% due to flexible cut edges. By adding pristine graphene as a supporting substrate, the trade-off between flexibility and strength in graphene kirigami can be overcome.
Article
Nanoscience & Nanotechnology
Youzhe Yang, Jun Ma, Jie Yang, Yingyan Zhang
Summary: Graphene, hexagonal boron nitride (h-BN), and their heterostructures are considered promising thermal interface materials due to their excellent thermal properties. This study investigates the thermal conductivity of three-dimensional GBN van der Waals heterostructures through simulations and explores various techniques to modulate the thermal conductivity.
ACS APPLIED MATERIALS & INTERFACES
(2022)
Article
Engineering, Aerospace
Shaoyu Zhao, Yingyan Zhang, Yihe Zhang, Jie Yang, Sritawat Kitipornchai
Summary: This paper investigates the free vibration behavior and dynamic responses of functionally graded beams made of graphene origami-enabled auxetic metal metamaterials. The auxetic property of the beams is controlled by graphene content and folding degree. The results show that high tunability in structural vibration characteristics can be achieved via graphene origami.
AEROSPACE SCIENCE AND TECHNOLOGY
(2022)
Article
Engineering, Civil
Shaoyu Zhao, Yingyan Zhang, Helong Wu, Yihe Zhang, Jie Yang
Summary: This paper examines the buckling and postbuckling properties of functionally graded graphene origami-enabled auxetic metallic metamaterial beams. It shows that graphene origami contributes to the formation of the auxetic metal metamaterial and its tunable buckling and postbuckling properties. This provides significant insights into the design of high-performance structures.
ENGINEERING STRUCTURES
(2022)
Article
Materials Science, Multidisciplinary
Shaoyu Zhao, Yingyan Zhang, Jie Yang, Sritawat Kitipornchai
Summary: A folded graphene reinforced copper nanocomposite has been developed, overcoming the conflict between toughness and strength. The mechanical properties of the nanocomposite can be effectively tuned by pre-strain, opening up possibilities for developing tough and strong metal nanocomposites.
JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
(2022)
Article
Mechanics
Shaoyu Zhao, Yingyan Zhang, Helong Wu, Yihe Zhang, Jie Yang, Sritawat Kitipornchai
Summary: This paper investigates the nonlinear bending behaviors of functionally graded composite beams made of graphene origami-enabled auxetic metal metamaterials. The effects of various factors on the bending performances of the beams are analyzed through model and parametric studies.
COMPOSITE STRUCTURES
(2022)
Article
Engineering, Civil
Shaoyu Zhao, Yingyan Zhang, Yihe Zhang, Jie Yang, Sritawat Kitipornchai
Summary: This paper proposes a novel functionally graded beam made of graphene origami-enabled auxetic metamaterials and investigates its nonlinear free vibration characteristics. The parameters such as graphene origami content and distribution pattern can effectively tune the nonlinear frequencies of the beam.
THIN-WALLED STRUCTURES
(2022)
Article
Engineering, Aerospace
Jun Liu, Yingyan Zhang, Yihe Zhang, Sritawat Kitipornchai, Jie Yang
Summary: This study comprehensively investigates the functionally graded graphene reinforced aluminium cantilever rectangular plates under aerodynamic loads through the coupling of finite element analysis and computational fluid dynamics. The results show that the maximum stress of the plate can be efficiently reduced and satisfactory aerodynamic performance can be achieved through aeroelastic tailoring, depending on the specific graphene distribution patterns. This provides useful design guidelines for the application of these plates as structural components in the aeronautical field.
AEROSPACE SCIENCE AND TECHNOLOGY
(2023)
Article
Chemistry, Physical
Yi Wang, Yihe Zhang, Rory Gover, Jie Yang, Yingyan Zhang
Summary: Graphene has excellent physical properties, but its two-dimensional structure limits its application as reinforcing fillers in composites. In this study, an origami technique was used to improve the flexibility of graphene. Molecular dynamics simulations showed that graphene origami (GOri) can withstand higher loads and indentation depths than pristine graphene. The flexibility and strength of GOri can be further enhanced in the bilayer format. This study provides insights into the failure mechanisms and mechanical properties of GOri for graphene-based impact protection applications.
Article
Chemistry, Physical
Chenchen Lu, Zhi-hui Li, Shanchen Li, Zhen Li, Yingyan Zhang, Junhua Zhao, Ning Wei
Summary: The recent groundbreaking experiment led to the development of new ultrastrong Carbon/Carbon composites by covalently bonding graphene and nanodiamond, endowing the composites with spectacular high strength and exceptional properties. Non-equilibrium molecular dynamic simulations were conducted to examine the interfacial thermal conductance of graphite-diamond structures, considering the effects of size, environmental temperature, interfacial atomic structures, and tensile strain. The study provides valuable insights into the heat transport properties of these newly developed Carbon/Carbon composites, revealing the independence of interfacial thermal conductance on graphene size and its dependence on the length of diamond in the heat transport direction.
Article
Engineering, Civil
Yang Chen, Yingyan Zhang, Tienchong Chang, Zhengrong Guo
Summary: The exceptional properties of graphene and other two-dimensional materials make them ideal candidates for future microscale devices. Friction behavior in these materials is dominated by the contact edges rather than the contact areas, and this edge-dominated behavior is attributed to an entropy effect. An analytical model based on lattice dynamics theory is developed to describe this entropy-originated friction in graphene, and it accurately predicts the dependence of friction on sliding speed, normal load, and stiffness of the supporting surface. The analytical model is applicable not only to graphene but also to other single-atom-thick 2D materials with similar phononic properties.
THIN-WALLED STRUCTURES
(2023)
Article
Materials Science, Multidisciplinary
Yuanyuan Kang, Kun Cai, Jiao Shi, Yangjun Luo, Yingyan Zhang
Summary: We developed a nanogun model using a short carbon nanotube (CNT) filled with water as the barrel and powder. The water cluster inside the CNT expands along the axis under an electric field, causing it to jet out from the open end. When a nanobullet, nanoparticle, or graphene flake blocks the nanojet, it is pushed out of the CNT barrel. Molecular dynamics simulations showed that the outlet speed of the bullet can exceed 1 km/s and follows a hyperbolic tangent function with the electric field intensity. A rotating electric field induces rotation and rollover of the bullet, but it has a minimal effect on its translation.
COMPUTATIONAL MATERIALS SCIENCE
(2023)
Article
Thermodynamics
Youzhe Yang, Jun Ma, Qing-Xiang Pei, Jie Yang, Yingyan Zhang
Summary: The combination of dissimilar materials, such as graphene and h-BN, has opened up new possibilities for various applications. In particular, the stacking of graphene and h-BN into graphene/h-BN (GBN) van der Waals (vdW) heterostructures shows remarkable thermal properties and electrical insulation. The interface morphology plays a vital role in the heat dissipation performance of GBN heterostructures, and its interfacial thermal conductance (ITC) can be tuned by modifying the interfacial layers through various approaches. Hydrogenation and composition diffusion are the most efficient methods, with hydrogenation showing the largest effect on ITC. This study provides valuable insights into the interface morphology-dependent ITC and facilitates the design of efficient GBN heterostructures for heat dissipation.
INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER
(2023)
