Article
Chemistry, Multidisciplinary
Manuel Vazquez Sulleiro, Aysegul Develioglu, Ramiro Quiros-Ovies, Lucia Martin-Perez, Natalia Martin Sabanes, Maria Lourdes Gonzalez-Juarez, I. Jennifer Gomez, Mariano Vera-Hidalgo, Victor Sebastian, Jesus Santamaria, Enrique Burzuri, Emilio M. Perez
Summary: The research successfully achieved the coupling of 2H-MoS2 and graphene in field-effect transistors through covalent grafting, providing the possibility of functionalizing multiple devices.
Article
Chemistry, Physical
Daria Belotcerkovtceva, J. Panda, M. Ramu, Tapati Sarkar, Ulrich Noumbe, M. Venkata Kamalakar
Summary: Understanding the stability and current-carrying capacity of graphene spintronic devices is crucial for their applications in spin current sensors, spin-torque oscillators, and spin-integrated circuits. In this study, it was found that chemical vapor deposited (CVD) graphene can sustain remarkably high currents of 5.2 x 10(8) A/cm(2), which is two orders higher than previously reported values in multilayer CVD graphene. The current-carrying capacity of CVD graphene primarily depends on its sheet resistance, and it can operate without degradation at high operating currents of 10(8) A/cm(2).
Article
Nanoscience & Nanotechnology
Leonardo Martini, Vaidotas Miseikis, David Esteban, Jon Azpeitia, Sergio Pezzini, Paolo Paletti, Michal W. Ochapski, Domenica Convertino, Mar Garcia Hernandez, Ignacio Jimenez, Camilla Coletti
Summary: In this work, high-quality graphene-hexagonal boron nitride (hBN) heterostructures were successfully obtained using scalable approaches. Continuous hBN films were grown on commercially available SiO2/Si and used as receiving substrates for graphene single-crystal matrixes. The structural, chemical, and electronic properties of the heterostructure were investigated, and graphene carrier mobilities exceeding 10,000 cm(2)/Vs were achieved in ambient conditions.
ACS APPLIED MATERIALS & INTERFACES
(2023)
Article
Chemistry, Multidisciplinary
Jannatul Mawwa, Siraj Ud Daula Shamim, Shamima Khanom, Md Kamal Hossain, Farid Ahmed
Summary: The synthesized graphene/hexagonal boron nitride heterostructures exhibit good structural stability and high adsorption energy, making them more sensitive to SO2 gas compared to CO gas.
Review
Thermodynamics
Iftikhar Hussain, Charmaine Lamiel, Muhammad Sufyan Javed, Muhammad Ahmad, Sumanta Sahoo, Xi Chen, Ning Qin, Sarmad Iqbal, Shuai Gu, Yuxiang Li, Christodoulos Chatzichristodoulou, Kaili Zhang
Summary: MXene, a two-dimensional transition metal carbide, nitrides, and/or carbonitrides, shows great potential in various research fields due to its excellent conductivity, hydrophilicity, and abundant surface functional groups. However, challenges in aggregation and low stability greatly limit its applicability. MXenes can be synthesized through techniques such as exfoliation of MAX phases assisted by HF and nonHF materials, and bottom-up approaches utilizing vapor deposition and templating methods. MXene-based heterostructure composites have been investigated as potential nanomaterials for energy storage, and this article provides an overview of MXene synthesis and current developments in MXene-based heterostructure composites for electrochemical energy storage devices. Challenges and difficulties in the future design of MXene-based heterostructure composites are also discussed.
PROGRESS IN ENERGY AND COMBUSTION SCIENCE
(2023)
Article
Chemistry, Analytical
Yongteng Qian, Zhiyi Lyu, Qianwen Zhang, Tae Hyeong Lee, Tae Kyu Kang, Minkyun Sohn, Lin Shen, Dong Hwan Kim, Dae Joon Kang
Summary: In this study, flower-shaped MoS2/graphene heterostructures were used as electrode materials on flexible substrates to overcome the limitations of low energy density and poor durability of MoS2. The results showed exceptional capacitance of 853 F g(-1) at 1.0 A g(-1) in three-electrode measurements, and 208 F g(-1) at 0.5 A g(-1) with long-term cyclic durability in asymmetric supercapacitor measurements. Nearly 86.5% of the electrochemical capacitance was retained after 10,000 cycles at 0.5 A g(-1). Moreover, a remarkable energy density of 65 Wh kg(-1) at a power density of 0.33 kW kg(-1) was obtained. The MoS2/Gr heterostructure composites have great potential for the development of advanced energy storage devices.
Article
Engineering, Multidisciplinary
Jianpei Wang, Haiying Yang, Ping Yang
Summary: We investigated the photoelectric properties of Graphene (Gra)/ZnO, Gra/Silicene (Si) and ZnO/Gra/Si heterostructures by using density functional calculations. The results show that the van der Waals interlayer interaction between the heterogeneous interfaces allows ZnO, Gra, and Si to retain their respective electronic properties. ZnO/Gra/Si with a sandwich structure exhibits the best photoelectric performance.
COMPOSITES PART B-ENGINEERING
(2022)
Article
Nanoscience & Nanotechnology
Khoe Van Nguyen, Shih-Yen Lin, Yia-Chung Chang
Summary: The transfer characteristics of p-doped graphene/monolayer-MoS2 heterostructure at 300 K were experimentally measured and analyzed based on a model calculation. The Poisson equation was discretized into multiple zones, and the Boltzmann transport equation was solved in the relaxation-time approximation using inelastic acoustic phonon scattering in the model. The relationship between the Dirac voltage and the Fermi energy was derived, and the results obtained without and with optical pumping agreed well with experimental data.
PHYSICA E-LOW-DIMENSIONAL SYSTEMS & NANOSTRUCTURES
(2021)
Article
Materials Science, Multidisciplinary
Irati Alonso Calafell, Lee A. Rozema, Alessandro Trenti, Justus Bohn, Eduardo J. C. Dias, Philipp K. Jenke, Kishan S. Menghrajani, David Alcaraz Iranzo, F. Javier Garcia de Abajo, Frank H. L. Koppens, Euan Hendry, Philip Walther
Summary: This study investigates high-harmonic generation in graphene heterostructures and discovers that metallic nanoribbons can amplify near-field effects in the graphene layer, allowing the observation of third- and fifth-harmonic generation in the mid-infrared pump power. The study also finds that ribbon width, spacer thickness, pump power, and polarization have an impact on the nonlinear signals, and demonstrates enhancement factors for third- and fifth-harmonic generation relative to bare graphene.
ADVANCED OPTICAL MATERIALS
(2022)
Article
Chemistry, Multidisciplinary
Sathwik Bharadwaj, Ashwin Ramasubramaniam, L. R. Ram-Mohan
Summary: This article studies the thermoelectric performance of lateral transition-metal dichalcogenides (TMDC) heterostructures and finds that the band alignment between materials is crucial in enhancing the thermoelectric figure-of-merit (ZT). Specifically, the room-temperature ZT value of n-type WS2 and p-type MoSe2 with triangular WSe2 inclusions is significantly higher than that of the pristine TMDCs. The peak power factor values calculated in this study are the highest reported amongst gapped monolayers at room temperature. Hence, monolayer lateral TMDC heterostructures offer new possibilities for developing highly efficient planar thermoelectric devices.
Article
Nanoscience & Nanotechnology
Heguang Liu, Decai Ouyang, Jing Wang, Chao Lei, Wenwu Shi, Todd Gilliam, Jianxi Liu, Yuan Li, Nitin Chopra
Summary: This study investigates the CVD growth of graphene-encapsulated Au nanoparticles (Au PG) through experimental parameter studies and theoretical modeling to understand the growth mechanism and control the morphology evolution. Optimized conditions for the best morphology evolution are identified, providing new insights for the design and application of such core-shell heterostructures in plasmonic applications.
ACS APPLIED MATERIALS & INTERFACES
(2021)
Article
Nanoscience & Nanotechnology
Zhiyan He, Kai Wang, Chao Yan, Lijuan Wan, Qingping Zhou, Teng Zhang, Xiaowo Ye, Yanming Zhang, Fangyuan Shi, Shenghao Jiang, Jian Zhao, Kunchan Wang, Changxin Chen
Summary: We have developed a method to produce high-quality sub-5 nm wide graphene nanoribbons (GNRs) and GNR/single-walled carbon nanotube (SWNT) intramolecular heterojunctions via palladium-catalyzed unzipping of SWNTs. The resulting GNRs could be as narrow as 2.2 nm and had an average length of over 1 μm. Controlled multiple GNR/SWNT heterostructures were also fabricated on an individual parent SWNT.
ACS APPLIED MATERIALS & INTERFACES
(2023)
Article
Materials Science, Multidisciplinary
Vivek Mishra, Yu Li, Fu-Chun Zhang, Stefan Kirchner
Summary: In this study, the effect of interface-induced Rashba spin-orbit coupling on the conductance of a three-terminal T-shaped superconducting device is investigated. The differential conductance is calculated within a quasiclassical formalism, considering the mixing of triplet-singlet pairing due to the Rashba spin-orbit coupling. The results are discussed in comparison with the conductance spectra reported for CoSi2/TiSi2 heterostructures.
Article
Materials Science, Multidisciplinary
Negar Zebardastan, Jonathan Bradford, Bharati Gupta, Josh Lipton-Duffin, Jennifer MacLeod, Hong Duc Pham, Deepak Dubal, Kostya Ostrikov, Annalena Wolff, Kailong Hu, Yoshikazu Ito, Carlo Mariani, Maria Grazia Betti, Nunzio Motta
Summary: Layered molybdenum disulphide (MoS2) crystals combined with graphene can create diverse 2D heterostructures for tailored applications. By adjusting growth parameters, different structures of MoS2 were successfully developed. MoS2/NPG shows promising electrochemical performance in potassium ion batteries.
ADVANCED MATERIALS TECHNOLOGIES
(2022)
Article
Optics
Jingshu Guo, Chaoyue Liu, Laiwen Yu, Hengtai Xiang, Yuluan Xiang, Daoxin Dai
Summary: Graphene-silicon-graphene waveguide photodetectors operating at wavelengths of 1.55 and 2 μm are demonstrated with potential for large-scale integration. The photodetectors exhibit high bandwidth, ultra-low dark current, high photo-to-dark current ratio, and high linear dynamic range.
LASER & PHOTONICS REVIEWS
(2023)
Article
Materials Science, Multidisciplinary
Kaimin Cui, Yuqing Wen, Xiaoyu Han, Zhenbang Hao, Jihong Zhang, Jun Xie
Summary: Suitable incorporation of Zn2+ ions into CsPbBr3 quantum dots enhances luminescence efficiency and chemical stability, as well as modifies the emission bands. This study successfully introduced high content Zn2+ ions into CsPbBr3 quantum dots, resulting in a new intense blue emission and green emission, depending on the ZnBr2/PbBr2 precursor ratio. The analysis confirmed the formation of CsZnxPb1-xBr3 alloyed quantum dots with different Zn alloy compositions.
Article
Chemistry, Medicinal
Xiaoyu Han, Lu Jin, Zhimin Zhao, Xinjun Xu, Shiyi Liu, Yuquan Huang, Xiaoli Liu, Yuehong Xu, Depo Yang, Wei Huang, Li Wang
Summary: The leaves of Strobilanthes cusia Kuntze exhibit antibacterial effects on penicillin-resistant Streptococcus pneumoniae. Confocal assay and Transmission Electron Microscopy revealed reduced cell wall integrity and capsule thickness in the treated bacteria. Proteomics analysis identified glycometabolism-related pathways and 23 bio-active compounds, among which Tryptanthrin showed the most promising effect.
Article
Engineering, Biomedical
Xiaoyu Han, Jieliang Shen, Shuyu Chen, Zhengwei Cai, Ying Zhu, Weiwei Yi, Kai Li, Weiye Cai, Bailong Tao, Wenguo Cui, Dingqun Bai
Summary: This study developed ultrasound-controlled explosive (UCE) hydrogels loaded with resveratrol nano-bubbles for precise regulation of spatiotemporal osteoimmune disorders. The release of resveratrol effectively inhibited local inflammatory response and regulated bone immune disorder, leading to accelerated bone repair.
Article
Agronomy
Xiaoyu Han, Dan Li, Yaohu Kang, Shuqin Wan
Summary: Field experiments were conducted to study the response of tomatoes to different water salinity levels under drip irrigation in coastal semi-humid areas and arid areas in China. The results showed that salinity hindered tomato yield but improved fruit quality. The salinity threshold for tomato yield without reduction was 1.8 dS/m in semi-humid area and 2.1 dS/m in arid area. From a comprehensive perspective of water saving, avoiding yield reduction, and improving fruit quality, a saline water of about 6.3 dS/m and 4.9 dS/m is suggested for drip irrigation of tomatoes in semi-humid areas and arid areas in China.
IRRIGATION SCIENCE
(2023)
Article
Materials Science, Multidisciplinary
Zhenbang Hao, Qihang Tian, Shiyi Cao, Xiaoyu Han, Jihong Zhang, Jun Xie, Xiujian Zhao
Summary: Novel hollow Au Ag alloy nano urchins were synthesized through Ag seeds growth method and self-assembled on the wall and end-tip of silica fiber for fiber probe fabrication. The nano urchins were evenly distributed on the fiber surface due to fiber silanization. The sizes and tip sharpness of the nano-urchins could be controlled by Ag seeds. High Ag content in the tip-top was confirmed through elemental distribution analysis, which enhanced the surface-enhanced Raman scattering performance. The fiber probe exhibited a detectable concentration as low as 10(-8) M using crystal violet molecules as analyte. Moreover, the presence of Au in the alloy made the fiber probes stable in air, allowing for low-content single molecular analysis.
JOURNAL OF WUHAN UNIVERSITY OF TECHNOLOGY-MATERIALS SCIENCE EDITION
(2023)
Article
Chemistry, Multidisciplinary
Yan Zhao, Xiaoyu Han, Na Zhang, Junping Meng, Hong Zhang, Jinsheng Liang
Summary: In order to remove polar aflatoxin B1 (AFB1) and weak polar zearalenone (ZEN) from mixed mycotoxins aqueous solution, eco-friendly and efficient palygorskite-montmorillonite (Pal-Mt) materials were prepared. The adsorption properties and bonding mechanisms between Pal-Mt materials and mycotoxins (AFB1 and ZEN) were systematically investigated. The results showed that Pal-Mt exhibited excellent adsorption capacity for AFB1 and ZEN in single-and binary-mycotoxin systems.
Review
Chemistry, Multidisciplinary
Xiaoyu Han, Weiwei Yi, Shuyu Chen, Zhengwei Cai, Ying Zhu, Wang Han, Xiya Guo, Jieliang Shen, Wenguo Cui, Dingqun Bai
Summary: Tissue repair is a series of biological events initiated to restore tissue integrity after trauma, pathogenic bacteria, or other injury-causing factors. Smart composite biomaterials can react to biological signals released after tissue damages and adjust to maintain the homeostasis of the internal environment. Ultrasound is an excellent remote control and trigger for smart composite biomaterials due to its technical effects such as cavitation, microstreaming, scattering, and acoustic radiation force. This review comprehensively and systematically explores the research progress of ultrasound-responsive smart composite biomaterials in tissue repair, covering various applications such as anti-infection, skin repair, osteogenesis, gene transfection, thrombolysis, neuromuscular, and imaging.
Article
Engineering, Chemical
Xiaoyu Han, Yushi Ke, Ye Wu, Jian Huang, Weilin Xu, Yunli Wang
Summary: In this study, silk fibroin (SF) powder is modified using chitosan and sodium stearate, and is used for oil-water separation. The modified SF powder exhibits better selectivity for oil than the original SF powder and has higher oil-absorption capacity for both soybean oil and engine oil. This work provides a new method and concept for the study of oil-water separation.
Article
Radiology, Nuclear Medicine & Medical Imaging
Xiaoyu Han, Lu Chen, Yanqing Fan, Osamah Alwalid, Xi Jia, Yuting Zheng, Jie Liu, Yumin Li, Yukun Cao, Jin Gu, Jia Liu, Chuansheng Zheng, Qing Ye, Heshui Shi
Summary: This prospective study longitudinally assessed changes in chest CT abnormalities and pulmonary function in individuals after recovery from SARS-CoV-2 infection. The study found that more than one-third of the participants had persistent interstitial lung abnormalities 2 years after infection, which were associated with respiratory symptoms and decreased diffusion pulmonary function.
Article
Multidisciplinary Sciences
Lei Luo, Xiaoyu Han, Keran Wang, Youxun Xu, Lunqiao Xiong, Jiani Ma, Zhengxiao Guo, Junwang Tang
Summary: In this study, the synergy of Cu species and partially reduced tungsten (W delta+) stabilized over an oxygen-vacancy-rich WO3 enables highly efficient and selective conversion of methane (CH4) to formaldehyde (HCHO) under visible light. The copper species serve as the electron acceptor and promote photo-induced electron transfer, while the adjacent W delta+ species act as the hole acceptor and activate CH4. The synergy of the dual active sites enhances the overall efficiency and selectivity of the conversion process.
NATURE COMMUNICATIONS
(2023)
Article
Chemistry, Multidisciplinary
Xiaoya Liu, Xueying Wang, Yucheng Luo, Meijuan Wang, Zijian Chen, Xiaoyu Han, Sijia Zhou, Jiahao Wang, Jian Kong, Hanry Yu, Xiaobo Wang, Xiaoying Tang, Qiongyu Guo
Summary: This study engineers a 3D tumor-mimicking drug release model using decellularized liver organ as a drug-testing platform. It incorporates complex vasculature systems, drug-diffusible electronegative extracellular matrix, and controlled drug depletion. The model allows quantitative evaluation of locoregional drug release parameters and establishes in vitro-in vivo correlations up to 80 days.
Article
Oncology
Yuting Zheng, Xiaoyu Han, Ying Wu, Xi Jia, Kailu Zhang, Jun Fan, Heshui Shi
Summary: The prognosis of multiple primary lung adenocarcinoma can be predicted by analyzing clinical and radiological features. The number of lesions and the presence of solid nodules are closely associated with survival. This study provides valuable information for future studies and clinical decision-making.
TECHNOLOGY IN CANCER RESEARCH & TREATMENT
(2023)
Review
Environmental Sciences
Jianming Huang, Chunrong Wang, Shujun Zhang, Xiaoyu Han, Rongfei Feng, Yang Li, Xiaoyan Huang, Jianbing Wang
Summary: With China's commitment to carbon reduction and carbon neutrality, anaerobic digestion and anammox have emerged as promising technologies for nitrogenous organic wastewater treatment. Anaerobic digestion can produce volatile fatty acids, methane, and other chemicals, while anammox can efficiently remove nitrogen with minimal energy consumption. This study evaluates the principles and characteristics of enhanced chemical flocculation and bioflocculation, as well as membrane separation, for capturing organic matter. It also explores the production of acids and methane from anaerobic digestion, considering various factors and control strategies. The features, challenges, and concerns of partial nitrification-anammox (PN/A) and partial denitrification-anammox (PD/A) are outlined, and an integrated system combining organic capture, anaerobic digestion, and anammox is proposed as a sustainable and effective solution for treating nitrogenous organic wastewater and recovering energy and resources.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2023)
Article
Materials Science, Multidisciplinary
Xiaoyu Han, Nikolas Kaltsoyannis
Summary: The effect of the Hubbard U parameter on the properties of bulk PuO2 and its {111} surface was investigated using periodic boundary condition PBE+U calculations. Comparison with experimental data was conducted for various properties, including band gap, lattice parameter, hybridization of Pu 5 f and O 2 p states, peak separation in the valence band, and surface work function. A U value of 3 eV was recommended and used to study the reactions of H2O and NO on PuO2 {111}, both individually and sequentially. The role of Pu 5 f band centre and its relation to the Fermi level were found to be significant in determining the reactions.
JOURNAL OF NUCLEAR MATERIALS
(2023)
Article
Engineering, Biomedical
Sixuan He, Yaru Li, Xinning Le, Xiaoyu Han, Jingfeng Lin, Xiaohang Peng, Min Li, Ruobing Yang, Dezhong Yao, Pedro A. Valdes-Sosa, Peng Ren
Summary: This study combines dynamic mode decomposition (DMD) and parallel communication model (PCM) to quantify multivariate information transmission (MIT) in the space-time-frequency domain of multivariate signals (MS). MS is decomposed using DMD into specific subsystems with intrinsic oscillatory frequencies, and the transition probability matrix (TPM) of information transmission within and between these subsystems is calculated. Communication parameters (CPs) derived from each TPM quantify MIT in the space-time-frequency domain. Results show the potential of this method in distinguishing between patients and healthy controls in EEG analysis.
IEEE TRANSACTIONS ON NEURAL SYSTEMS AND REHABILITATION ENGINEERING
(2023)
