Article
Chemistry, Physical
Chuanchuan Zhang, Xuan Chen, Biaobing Cao, Haiming Duan, Qihua Sun, Fangping Ouyang
Summary: Substitutional doping of Te atoms for Se atoms in InSe monolayers can effectively adjust the electronic structure, leading to a transition from indirect to direct band gap. The band gap reaches a maximum of 1.64 eV at a Te concentration of 33.3% before gradually decreasing to 1.08 eV.
APPLIED SURFACE SCIENCE
(2022)
Article
Chemistry, Multidisciplinary
Yee Wen Teh, Chen-Chen Er, Xin Ying Kong, Boon-Junn Ng, Siek-Ting Yong, Siang-Piao Chai
Summary: A bottom-up approach was used to design atomically thin sulfur-doped Bi2WO6 perovskite nanosheets with improved performance, which showed significant enhancement in photocatalytic reduction of CO2.
Article
Physics, Condensed Matter
Kiana Falahati, Ali Khatibi, Babak Shokri
Summary: First-principles calculations were used to investigate the band tuning in tungsten disulfide monolayer due to nitrogen and phosphorous doping. The results show that doping affects lattice parameters and reduces the band gap. Nitrogen and phosphorus doping lead to changes in the band structure and doping concentration has a significant impact on spin splitting.
MICRO AND NANOSTRUCTURES
(2022)
Article
Chemistry, Physical
Lei Li, Lili Song, Xiaoyun Zhang, Shifan Zhu, Yuqiao Wang
Summary: The study investigates the effect of boron doping on the electronic structure and surface adsorption of NiCo2S4, enhancing the rate performance and cycle stability of supercapacitors. Density functional theory calculations elucidate the control of electronic structure by boron doping, promoting charge transfer and improving reaction kinetics.
ACS APPLIED ENERGY MATERIALS
(2022)
Article
Chemistry, Physical
Lei Li, Lili Song, Xiaoyun Zhang, Shifan Zhu, Yuqiao Wang
Summary: Substitutional and interstitial boron doping was utilized to improve the electron transfer and surface adsorption of NiCo2S4 for high rate and long-term stability super-capacitors. The density of states of boron-doped NiCo2S4 was significantly higher than that of pure NiCo2S4 near the Fermi level, resulting in enhanced charge transfer. The interstitial doping redistributed the surface charge, leading to improved Faradaic reaction kinetics.
ACS APPLIED ENERGY MATERIALS
(2022)
Article
Chemistry, Multidisciplinary
Tianyi Zhang, Mingzu Liu, Kazunori Fujisawa, Michael Lucking, Kory Beach, Fu Zhang, Maruda Shanmugasundaram, Andrey Krayev, William Murray, Yu Lei, Zhuohang Yu, David Sanchez, Zhiwen Liu, Humberto Terrones, Ana Laura Elias, Mauricio Terrones
Summary: Controlling the density and spatial distribution of substitutional dopants in semiconductors is essential for achieving desired physicochemical properties. This study demonstrates that edge termination is an important characteristic of 2D transition metal dichalcogenide monocrystals that affects the distribution of substitutional dopants. By utilizing chemical vapor deposition, it is found that sulfur-terminated domains have a higher density of dopants compared to tungsten-terminated domains in monolayer WS2. This edge-dependent dopant distribution can be utilized as a novel technique for engineering the spatial distribution of substitutional dopants in crystalline TMD monolayers.
Article
Chemistry, Multidisciplinary
Chenbo Min, Yihui Chen, Yonglin Yang, Hongzhao Wu, Bailin Guo, Sirui Wu, Qichuan Huang, Donghuan Qin, Lintao Hou
Summary: A new phosphine-doping strategy was developed to enhance the performance of CdTe nanocrystal solar cells, resulting in a power conversion efficiency (PCE) of 5.41%. Phosphine doping was found to increase the carrier concentration, improve carrier mobility, and prolong carrier lifetime, leading to significant improvement in the performance of CdTe nanocrystal solar cells.
Article
Physics, Condensed Matter
Sebastian Echeverri Restrepo
Summary: The effects of molybdenum as a substitutional element in cementite phase in steels were investigated. It was found that the addition of molybdenum can improve the hardness of steel at higher temperatures. The energetic, structural, electronic, and mechanical properties of cementite with molybdenum were characterized and analyzed.
PHYSICA B-CONDENSED MATTER
(2022)
Article
Chemistry, Physical
Krishna Rani Sahoo, Anku Guha, Sumit Bawari, Rahul Sharma, Dipak Maity, Tharangattu N. Narayanan
Summary: This report demonstrates that substitutional doping of vanadium in MoS2 mono layers can enhance the electrocatalytic hydrogen evolution activity. The optimum doping of 1% vanadium in MoS2 leads to lower overpotential and better hydrogen evolution performance, while increasing the vanadium content increases the overpotential.
ACS APPLIED ENERGY MATERIALS
(2022)
Article
Chemistry, Physical
Akash Shah, Amit H. Munshi, Anthony P. Nicholson, Aanand Thiyagarajan, Umberto M. Pozzoni, Walajabad S. Sampath
Summary: Atomistic modeling based on Density Functional Theory coupled with surface Green's function was used to investigate energy band alignment in cadmium selenium telluride (CdSeTe) surfaces. Results showed differences in surface geometry and band alignment features between CdSeTe and CdTe surfaces, which may help explain the lower performance of CdSeTe-only solar cells compared to CdTe-only devices.
APPLIED SURFACE SCIENCE
(2021)
Article
Chemistry, Physical
Jiajun Wang, Mengyao Shi, Guolin Yi, Jie Meng, Qunxiang Li
Summary: The study designs three B-doped C9N4 monolayers, with the BN monolayer showing superior catalytic activity and low overpotential in NRR, as well as excellent suppression effect on the competitive hydrogen evolution reaction. These findings suggest that B substitutional doping strategy could be a promising direction for designing high-performance B-based NRR electrocatalysts.
MOLECULAR CATALYSIS
(2021)
Article
Chemistry, Inorganic & Nuclear
Vijayaraj Venkatachalam, Sasikala Ganapathy, Ilaiyaraja Perumal, N. Priyadarshini, J. S. Santhosh Jeferson Stanley
Summary: In this study, pristine cadmium telluride (CdTe) and indium (In) doped CdTe quantum dots (CdTe: In) were synthesized via an aqueous colloidal route. The concentration of InCl3 precursor was increased to increase the amount of In-doping in CdTe QDs. The chloride ions from InCl3 precursor controlled the crystal growth of CdTe QDs. The performance of Gratzel type sensitized solar cells made using these CdTe QDs was strongly influenced by In-dopant precursor concentration.
INORGANIC CHEMISTRY COMMUNICATIONS
(2023)
Article
Nanoscience & Nanotechnology
Anthony P. Nicholson, Akash Shah, Ramesh Pandey, Amit H. Munshi, James Sites, Walajabad Sampath
Summary: This study employs a synergistic approach combining first-principles atomistic modeling with numerical device simulations to investigate the role of heterointerfaces in metal-chalcogenide-based photovoltaic technologies. The atomic-scale study of two interfaces in cadmium-telluride-based thin-film solar cells reveals the mechanisms contributing to device performance variations. Computational results show contrasting electronic structures and charge transport behavior between the Schottky barrier forming Al/CdTe interface and the Type I Te/CdTe heterojunction. The cadmium termination exhibits greater band bending features compared to the tellurium termination, leading to a 3.6% higher photovoltaic conversion efficiency for the cadmium termination. This research highlights the importance of atomic-scale interfacial properties for the performance of cadmium telluride solar cells.
ACS APPLIED MATERIALS & INTERFACES
(2022)
Article
Physics, Condensed Matter
Eric Welch, Pablo Borges, Luisa Scolfaro
Summary: Substitutional Gd alloying in beta-Ga2O3 was investigated using hybrid density functional theory. The calculations showed that the introduction of Gd led to an increase in lattice parameters, volume, and interplanar spacing. The energy calculations indicated that Gd alloying was stable and showed a decrease in energy with increasing Gd concentrations. The electronic band structure analysis revealed a decrease in the band gap and the presence of deep lying f-orbital electronic states with increasing Gd content. The frequency dependent dielectric response spectra demonstrated spatial anisotropy and a red shift for optical properties up to 37.5% Gd content, suggesting the possibility of tuning Ga2O3 properties through Gd alloying without significant modification of the band edge contributions.
PHYSICA B-CONDENSED MATTER
(2023)
Article
Chemistry, Physical
Vijayaraj Venkatachalam, Sasikala Ganapathy, N. Priyadarshini, Ilaiyaraja Perumal
Summary: Pristine and indium-doped cadmium telluride quantum dots were synthesized using an aqueous colloidal route. The structural and morphological details were studied using XRD and HRTEM. Increasing the concentration of indium precursor resulted in higher indium doping and smaller particle size. Chloride ions from the precursor controlled the growth of the quantum dots, while 3-MPA acted as a stabilizing agent. The size reduction of the quantum dots led to blue-shifted absorbance and photoluminescence spectra. Mixing the blue-emitting organic fluorophore POPOP with green-emitting CdTe:In and red-emitting CdTe quantum dots resulted in white light emission. The nanocomposite exhibited white light emission with good color properties. The study suggests the potential application of this nanocomposite in white LED and display technology.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2022)
Article
Cardiac & Cardiovascular Systems
Yinan Wang, Yiming Jia, Qingyun Xu, Ruirui Wang, Lulu Sun, Daoxia Guo, Mengyao Shi, Pinni Yang, Yu Wang, Fanghua Liu, Yonghong Zhang, Zhengbao Zhu
Summary: This study used a two-sample Mendelian randomization (MR) approach to investigate the potential causal effect of myeloperoxidase (MPO) on ischemic stroke, ischemic stroke subtypes, heart failure (HF), and atrial fibrillation (AF). The results suggest that elevated plasma MPO levels may be associated with increased risks of ischemic stroke, cardioembolic stroke, HF, and AF, highlighting the importance of MPO in the development of cardiovascular disease.
NUTRITION METABOLISM AND CARDIOVASCULAR DISEASES
(2023)
Article
Rheumatology
Xing-Bo Mo, Yang-Hua Sun, Long-Fei Wu, Pei He, Rong-Rong Cao, Xin Lu, Yong-Hong Zhang, Fei-Yan Deng, Shu-Feng Lei
Summary: This study identified a novel lncRNA, lnc-RNU12, that is downregulated and genetically associated with rheumatoid arthritis (RA) risk in patients. The results showed that lnc-RNU12 influences the T cell cycle by targeting the genes c-JUN and CCNL2, suggesting its involvement in the pathogenesis of RA.
Article
Biochemistry & Molecular Biology
Yiming Jia, Rong Wang, Lulu Sun, Daoxia Guo, Mengyao Shi, Kaixin Zhang, Pinni Yang, Yu Wang, Fanghua Liu, Guo-Chong Chen, Yonghong Zhang, Zhengbao Zhu
Summary: By conducting a Mendelian randomization study, we identified three potential causal mediators, including docosahexaenoic acid, arachidonate, and 1-arachidonoyl-GPE, in the development of atopic dermatitis. Docosahexaenoic acid and arachidonate were found to have beneficial or detrimental effects on multiple diseases beyond atopic dermatitis, while no adverse side effects were predicted for 1-arachidonoyl-GPE. These findings provide valuable insights for the prevention and treatment of atopic dermatitis.
HUMAN MOLECULAR GENETICS
(2023)
Article
Peripheral Vascular Disease
Yujia Zhai, Bizhong Che, Yang Liu, Hao Peng, Aili Wang, Yanbo Peng, Jing Chen, Yonghong Zhang, Tan Xu, Chongke Zhong, Jiang He
Summary: This study investigated whether different blood pressure management strategies should be used for acute stroke patients with or without impaired renal function. The results showed that early antihypertensive treatment had no effect on clinical outcomes in ischemic stroke patients with different renal function status.
Article
Immunology
Jun Zhou, Shan Yan, Xu Guo, Yanguo Gao, Shiqi Chen, Xiaohan Li, Yonghong Zhang, Qibin Wang, Tao Zheng, Li Chen
Summary: This study investigated the effects of salidroside (SAL) on pancreatic beta-cell pyroptosis in diabetic mice. The results showed that SAL can protect beta-cells against pyroptosis by activating AMPK and inhibiting NLRP3/GSDMD signaling.
INTERNATIONAL IMMUNOPHARMACOLOGY
(2023)
Article
Clinical Neurology
Zhengbao Zhu, Daoxia Guo, Kaixin Zhang, Pinni Yang, Yiming Jia, Mengyao Shi, Yanbo Peng, Jing Chen, Aili Wang, Tan Xu, Yonghong Zhang, Jiang He
Summary: Plasma osteoprotegerin is associated with poor prognosis of ischemic stroke. High levels of plasma osteoprotegerin are associated with increased risk of death and major disability. Genetically determined high plasma osteoprotegerin is associated with an increased risk of primary outcome.
Article
Clinical Neurology
Shoujiang You, Yucong Bi, Mengyuan Miao, Anran Bao, Jigang Du, Tan Xu, Chun-Feng Liu, Yonghong Zhang, Jiang He, Yongjun Cao, Chongke Zhong
Summary: This study investigated the association between plasma soluble DPP4 (sDPP4) levels and poststroke cognitive impairment (PSCI). The results showed that higher plasma sDPP4 levels were associated with decreased risk of cognitive impairment after noncardioembolic ischemic stroke. Adding sDPP4 to the basic model significantly improved risk reclassification for PSCI. Therefore, plasma sDPP4 levels play an important predictive role in the development of cognitive impairment after noncardioembolic ischemic stroke.
Article
Clinical Neurology
Jigang Du, Yan Wang, Bizhong Che, Mengyuan Miao, Anran Bao, Yanbo Peng, Zhong Ju, Tan Xu, Jiang He, Yonghong Zhang, Chongke Zhong
Summary: This study utilized repeated measures of the National Institutes of Health Stroke Scale (NIHSS) to identify different trajectories of neurological function after stroke and investigated their association with long-term clinical outcomes. The findings revealed that trajectories characterized by persistent severe and moderate neurological impairment were associated with increased risk of cardiovascular events. These results suggest that evaluating the neurological function trajectories of stroke patients through repeated NIHSS measurements can provide additional predictive information and aid in predicting long-term clinical outcomes.
INTERNATIONAL JOURNAL OF STROKE
(2023)
Article
Clinical Neurology
Yinwei Zhu, Lulu Sun, Tiansheng Huang, Yiming Jia, Pinni Yang, Qi Zhang, Chongquan Fang, Mengyao Shi, Daoxia Guo, Yanbo Peng, Anushka Aghi, Jing Chen, Aili Wang, Jiang He, Yonghong Zhang, Tan Xu, Zhengbao Zhu
Summary: A multicenter cohort study found that elevated serum BDNF concentrations were associated with decreased risks of adverse outcomes after ischemic stroke, suggesting that serum BDNF may be a potential biomarker for prognosis after ischemic stroke.
Article
Biotechnology & Applied Microbiology
Zhuo Wang, Wenjie Ge, Yonghong Zhang, Bo Liu, Bin Liu, Shikai Jin, Yuzhu Li
Summary: Animal joint motion is a combination of rotation and translational motion, bringing advantages such as high stability and energy utilization. However, the simple motion characteristic of the hinge joint limits the improvement of the robot's motion performance. In this paper, a new bionic geared five-bar knee joint mechanism based on the kangaroo knee joint is proposed to improve energy utilization and reduce power demand.
BIOENGINEERING-BASEL
(2023)
Article
Clinical Neurology
Bizhong Che, Chongke Zhong, Jigang Du, Mengyuan Miao, Mengyao Shi, Yanbo Peng, Pinni Yang, Daoxia Guo, Jing Chen, Aili Wang, Tan Xu, Yonghong Zhang, Jiang He
Summary: This study aimed to examine the prognostic values of CCL19 and CCL21 in ischemic stroke. The results showed that both CCL19 and CCL21 levels were independently associated with adverse outcomes within 3 months after ischemic stroke, and could improve risk reclassification and discrimination for adverse outcomes.
EUROPEAN JOURNAL OF NEUROLOGY
(2023)
Article
Oncology
Hao Peng, Helena Palma-Gudiel, Carolina Soriano-Tarraga, Jordi Jimenez-Conde, Mingzhi Zhang, Yonghong Zhang, Jinying Zhao
Summary: Altered DNA methylation of TRIM6, FLRT2, SOX1, SOX17, AGBL4, and FAM84A genes (increased) and TLN2 gene (decreased) were found to be associated with ischemic stroke in Chinese populations. Experimental evidence suggests these genes may be involved in endothelial cell adhesion and atherosclerosis.
CLINICAL EPIGENETICS
(2023)
Article
Cardiac & Cardiovascular Systems
Fanghua Liu, Pinni Yang, Yinan Wang, Mengyao Shi, Ruirui Wang, Qingyun Xu, Yanbo Peng, Jing Chen, Jintao Zhang, Aili Wang, Tan Xu, Yonghong Zhang, Jiang He
Summary: This study investigated the relationship between baseline platelet count and HS-CRP on clinical outcomes in patients with ischemic stroke. The results showed an interaction effect between platelet count and HS-CRP on adverse clinical outcomes. Elevated platelet count was significantly associated with adverse clinical outcomes in patients with high HS-CRP levels. Strategies for anti-inflammatory and antiplatelet therapy should be developed based on platelet and HS-CRP testing results.
JOURNAL OF THE AMERICAN HEART ASSOCIATION
(2023)
Article
Engineering, Aerospace
Yonghong Zhang, Chengmin Wang, Shuangquan Tang, You Jiang, Hong Chen, Wenjie Ge
Summary: This study investigates and designs a novel stacked hinge with low stiffness, large rotation angle, high strength, and length-adaptive functionality. A theoretical model for the stiffness of stacked flexure hinges is established based on the large deformation theory of cantilever beams and relevant theories of leaf springs. The model is further modified considering the frictional force to reduce errors. A stiffness-testing experimental platform is designed to verify the correctness of the theoretical model. The stacked flexure hinge is applied to the trailing-edge mechanism of a variable camber wing, achieving the desired deformation and demonstrating feasibility.
Article
Oncology
Yu Wang, Fanghua Liu, Lulu Sun, Yiming Jia, Pinni Yang, Daoxia Guo, Mengyao Shi, Aili Wang, Guo-Chong Chen, Yonghong Zhang, Zhengbao Zhu
Summary: This study conducted a systematic Mendelian randomization analysis to identify potential causal mediators for breast cancer. The findings suggest that high-density lipoprotein cholesterol (HDL-C) and acetate may play a role in the risk of developing breast cancer. Furthermore, the analysis of side effects indicates that lowering HDL-C may have negative effects on the circulatory system and foreign body injury, while lowering acetate may have negative effects on mental disorders disease.
BREAST CANCER RESEARCH
(2023)
