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Shi J, Wang J, Wang X, Qu C, Ye C, Li X, Chen X, Xu Z. Design, synthesis and antiproliferative evaluation of tetrahydro-β-carboline histone deacetylase inhibitors bearing an aliphatic chain linker. RSC Adv 2024; 14:12762-12771. [PMID: 38645526 PMCID: PMC11027041 DOI: 10.1039/d4ra01672f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2024] [Accepted: 04/03/2024] [Indexed: 04/23/2024] Open
Abstract
The use of histone deacetylase inhibitors (HDACis) is an effective approach for cancer treatment. In this work, a series of hydroxamic acid-based HDACis with a tetrahydro-β-carboline core and aliphatic linker have been designed and synthesized. The optimal compound 13d potently inhibited HDAC1 and showed good antiproliferative activity against different tumor cell lines in vitro. Molecular docking of 13d was conducted to rationalize the high binding affinity for HDAC1. Therefore, this work provides a new structure design for HDAC inhibitors and also offers a promising treatment for solid tumors.
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Affiliation(s)
- Jing Shi
- Department of Thoracic Surgery, The Second Affiliated Hospital of Xi'an Jiaotong University Xi'an Shaanxi 710004 China +86-029-87679000
- Department of Respiratory and Endocrinology, The Second Affiliated Hospital of Xi'an Jiaotong University Xi'an 710004 Shaanxi China
| | - Jiayun Wang
- Shaanxi Key Labotory of Natural Products & Chemical Biology, College of Chemistry & Pharmacy, Northwest A&F University Yangling 712100 China +86-029-87092335
| | - Xingjie Wang
- Department of General Surgery, The First Affiliated Hospital of Xi'an Jiaotong University Xi'an 710061 Shaanxi China
| | - Chao Qu
- Department of General Surgery, The First Affiliated Hospital of Xi'an Jiaotong University Xi'an 710061 Shaanxi China
| | - Changchun Ye
- Department of General Surgery, The First Affiliated Hospital of Xi'an Jiaotong University Xi'an 710061 Shaanxi China
| | - Xiuli Li
- Department of Respiratory and Endocrinology, The Second Affiliated Hospital of Xi'an Jiaotong University Xi'an 710004 Shaanxi China
| | - Xin Chen
- Shaanxi Key Labotory of Natural Products & Chemical Biology, College of Chemistry & Pharmacy, Northwest A&F University Yangling 712100 China +86-029-87092335
| | - Zhengshui Xu
- Department of Thoracic Surgery, The Second Affiliated Hospital of Xi'an Jiaotong University Xi'an Shaanxi 710004 China +86-029-87679000
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2
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Duan X, Cao Z, Gao K, Yan W, Sun S, Zhou G, Wu Z, Ren F, Sun B. Memristor-Based Neuromorphic Chips. Adv Mater 2024; 36:e2310704. [PMID: 38168750 DOI: 10.1002/adma.202310704] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/14/2023] [Revised: 12/15/2023] [Indexed: 01/05/2024]
Abstract
In the era of information, characterized by an exponential growth in data volume and an escalating level of data abstraction, there has been a substantial focus on brain-like chips, which are known for their robust processing power and energy-efficient operation. Memristors are widely acknowledged as the optimal electronic devices for the realization of neuromorphic computing, due to their innate ability to emulate the interconnection and information transfer processes witnessed among neurons. This review paper focuses on memristor-based neuromorphic chips, which provide an extensive description of the working principle and characteristic features of memristors, along with their applications in the realm of neuromorphic chips. Subsequently, a thorough discussion of the memristor array, which serves as the pivotal component of the neuromorphic chip, as well as an examination of the present mainstream neural networks, is delved. Furthermore, the design of the neuromorphic chip is categorized into three crucial sections, including synapse-neuron cores, networks on chip (NoC), and neural network design. Finally, the key performance metrics of the chip is highlighted, as well as the key metrics related to the memristor devices are employed to realize both the synaptic and neuronal components.
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Affiliation(s)
- Xuegang Duan
- National Local Joint Engineering Research Center for Precision Surgery & Regenerative Medicine, the First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi, 710049, China
- Department of hepatobiliary surgery, the First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi, 710049, China
- Frontier Institute of Science and Technology (FIST), Xi'an Jiaotong University, Xi'an, Shaanxi, 710049, China
- Micro-and Nano-technology Research Center, State Key Laboratory for Manufacturing Systems Engineering, Xi'an Jiaotong University, Xi'an, Shaanxi, 710049, China
| | - Zelin Cao
- National Local Joint Engineering Research Center for Precision Surgery & Regenerative Medicine, the First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi, 710049, China
- Department of hepatobiliary surgery, the First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi, 710049, China
- Frontier Institute of Science and Technology (FIST), Xi'an Jiaotong University, Xi'an, Shaanxi, 710049, China
- Micro-and Nano-technology Research Center, State Key Laboratory for Manufacturing Systems Engineering, Xi'an Jiaotong University, Xi'an, Shaanxi, 710049, China
| | - Kaikai Gao
- National Local Joint Engineering Research Center for Precision Surgery & Regenerative Medicine, the First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi, 710049, China
- Department of hepatobiliary surgery, the First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi, 710049, China
- Frontier Institute of Science and Technology (FIST), Xi'an Jiaotong University, Xi'an, Shaanxi, 710049, China
- Micro-and Nano-technology Research Center, State Key Laboratory for Manufacturing Systems Engineering, Xi'an Jiaotong University, Xi'an, Shaanxi, 710049, China
| | - Wentao Yan
- National Local Joint Engineering Research Center for Precision Surgery & Regenerative Medicine, the First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi, 710049, China
- Department of hepatobiliary surgery, the First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi, 710049, China
- Frontier Institute of Science and Technology (FIST), Xi'an Jiaotong University, Xi'an, Shaanxi, 710049, China
- Micro-and Nano-technology Research Center, State Key Laboratory for Manufacturing Systems Engineering, Xi'an Jiaotong University, Xi'an, Shaanxi, 710049, China
| | - Siyu Sun
- Frontier Institute of Science and Technology (FIST), Xi'an Jiaotong University, Xi'an, Shaanxi, 710049, China
- Micro-and Nano-technology Research Center, State Key Laboratory for Manufacturing Systems Engineering, Xi'an Jiaotong University, Xi'an, Shaanxi, 710049, China
| | - Guangdong Zhou
- College of Artificial Intelligence, Brain-inspired Computing & Intelligent Control of Chongqing Key Lab, Southwest University, Chongqing, 400715, China
| | - Zhenhua Wu
- School of Mechanical Engineering, Shanghai Jiao Tong University, 800 DongChuan Rd, Shanghai, 200240, China
| | - Fenggang Ren
- National Local Joint Engineering Research Center for Precision Surgery & Regenerative Medicine, the First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi, 710049, China
- Department of hepatobiliary surgery, the First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi, 710049, China
| | - Bai Sun
- National Local Joint Engineering Research Center for Precision Surgery & Regenerative Medicine, the First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi, 710049, China
- Department of hepatobiliary surgery, the First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi, 710049, China
- Frontier Institute of Science and Technology (FIST), Xi'an Jiaotong University, Xi'an, Shaanxi, 710049, China
- Micro-and Nano-technology Research Center, State Key Laboratory for Manufacturing Systems Engineering, Xi'an Jiaotong University, Xi'an, Shaanxi, 710049, China
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3
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Dai X, Wang Y, Sun X, Li K, Pan J, Wang J, Zhuang T, Chong D, Yan J, Wang H. All-Automated Fabrication of Freestanding and Scalable Photo-Thermoelectric Devices with High Performance. Adv Mater 2024:e2312570. [PMID: 38359909 DOI: 10.1002/adma.202312570] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/22/2023] [Revised: 02/03/2024] [Indexed: 02/17/2024]
Abstract
Flexible photo-thermoelectric (PTE) devices have great application prospects in the fields of solar energy conversion, ultrabroadband light detection, etc. A suitable manufacturing process to avoid the substrate effects as well as to create a narrow transition area between p-n modules for high-performance freestanding flexible PTE devices is highly desired. Herein, an automated laser fabrication (ALF) method is reported to construct the PTE devices with rylene-diimide-doped n-type single-walled carbon nanotube (SWCNT) films. The wet-compressing approach is developed to improve the thermoelectric power factors and figure of merit (ZT) of the SWCNT hybrid films. Then, the films are cut and patterned automatically to make PTE devices with various structures by the proposed ALF method. The freestanding PTE device with a narrow transition area of ≈2-3 µm between the p and n modules exhibits a high-power density of 0.32 µW cm-2 under the light of 200 mW cm-2 , which is among the highest level for freestanding-film-based PTE devices. The results pave the way for the automatic production process of PTE devices for green power generation and ultrabroadband light detection.
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Affiliation(s)
- Xu Dai
- State Key Laboratory of Multiphase Flow in Power Engineering and Frontier Institute of Science and Technology, Xi'an Jiaotong University, Xi'an, 710054, China
- School of Energy and Power Engineering, Xi'an Jiaotong University, Xi'an, 710054, China
| | - Yizhuo Wang
- State Key Laboratory of Multiphase Flow in Power Engineering and Frontier Institute of Science and Technology, Xi'an Jiaotong University, Xi'an, 710054, China
- School of Energy and Power Engineering, Xi'an Jiaotong University, Xi'an, 710054, China
| | - Xu Sun
- State Key Laboratory of Multiphase Flow in Power Engineering and Frontier Institute of Science and Technology, Xi'an Jiaotong University, Xi'an, 710054, China
- School of Energy and Power Engineering, Xi'an Jiaotong University, Xi'an, 710054, China
| | - Kuncai Li
- State Key Laboratory of Multiphase Flow in Power Engineering and Frontier Institute of Science and Technology, Xi'an Jiaotong University, Xi'an, 710054, China
- School of Energy and Power Engineering, Xi'an Jiaotong University, Xi'an, 710054, China
| | - Jiahao Pan
- State Key Laboratory of Multiphase Flow in Power Engineering and Frontier Institute of Science and Technology, Xi'an Jiaotong University, Xi'an, 710054, China
- School of Energy and Power Engineering, Xi'an Jiaotong University, Xi'an, 710054, China
| | - Jing Wang
- State Key Laboratory of Multiphase Flow in Power Engineering and Frontier Institute of Science and Technology, Xi'an Jiaotong University, Xi'an, 710054, China
- School of Energy and Power Engineering, Xi'an Jiaotong University, Xi'an, 710054, China
| | - Tiantian Zhuang
- State Key Laboratory of Multiphase Flow in Power Engineering and Frontier Institute of Science and Technology, Xi'an Jiaotong University, Xi'an, 710054, China
- School of Energy and Power Engineering, Xi'an Jiaotong University, Xi'an, 710054, China
| | - Daotong Chong
- State Key Laboratory of Multiphase Flow in Power Engineering and Frontier Institute of Science and Technology, Xi'an Jiaotong University, Xi'an, 710054, China
- School of Energy and Power Engineering, Xi'an Jiaotong University, Xi'an, 710054, China
| | - Junjie Yan
- State Key Laboratory of Multiphase Flow in Power Engineering and Frontier Institute of Science and Technology, Xi'an Jiaotong University, Xi'an, 710054, China
- School of Energy and Power Engineering, Xi'an Jiaotong University, Xi'an, 710054, China
| | - Hong Wang
- State Key Laboratory of Multiphase Flow in Power Engineering and Frontier Institute of Science and Technology, Xi'an Jiaotong University, Xi'an, 710054, China
- School of Energy and Power Engineering, Xi'an Jiaotong University, Xi'an, 710054, China
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Wang Z, Kong X, Fan Z, Ding S, Rong Q, Su Y. A First-Principles Study of Anion Doping in LiFePO 4 Cathode Materials for Li-Ion Batteries. Chemphyschem 2024; 25:e202300756. [PMID: 38010194 DOI: 10.1002/cphc.202300756] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2023] [Revised: 11/20/2023] [Accepted: 11/24/2023] [Indexed: 11/29/2023]
Abstract
Doping anions into LiFePO4 can improve the electrochemical performance of lithium-ion batteries. In this study, structures, electronic properties and Li-ion migration of anion (F- , Cl- , and S2- ) doping into LiFePO4 were systematically investigated by means of density functional theory calculations. Anion substitution for oxygen atoms leads to an expansion of the LiFePO4 lattice, significantly facilitating Li-ion diffusion. For Cl- and F- anion doped into LiFePO4 , the energy barrier of Li-ion migration gets lowered to 0.209 eV and 0.283 eV from 0.572 eV. The introduction of anions narrows the forbidden band of LiFePO4 , enhancing its electronic conductivity. This work pays a way towards the rational design of high-performance lithium-ion batteries.
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Affiliation(s)
- Ziwei Wang
- School of Chemistry, Engineering Research Center of Energy Storage Materials and Devices of Ministry of Education, State Key Laboratory of Electrical Insulation and Power Equipment, National Innovation Platform (Center) for Industry-Education Integration of Energy Storage Technology, Xi'an Jiaotong University, Xi'an, 710049, China
| | - Xiangpeng Kong
- Hunan Desay Battery Co., Ltd., No. 688, Chigang Road, Wangcheng Economy & Technology Development Zone.Changsha., Hunan, China
| | - Zhiwei Fan
- Hunan Desay Battery Co., Ltd., No. 688, Chigang Road, Wangcheng Economy & Technology Development Zone.Changsha., Hunan, China
| | - Shujiang Ding
- School of Chemistry, Engineering Research Center of Energy Storage Materials and Devices of Ministry of Education, State Key Laboratory of Electrical Insulation and Power Equipment, National Innovation Platform (Center) for Industry-Education Integration of Energy Storage Technology, Xi'an Jiaotong University, Xi'an, 710049, China
| | - Qiang Rong
- Hunan Desay Battery Co., Ltd., No. 688, Chigang Road, Wangcheng Economy & Technology Development Zone.Changsha., Hunan, China
| | - Yaqiong Su
- School of Chemistry, Engineering Research Center of Energy Storage Materials and Devices of Ministry of Education, State Key Laboratory of Electrical Insulation and Power Equipment, National Innovation Platform (Center) for Industry-Education Integration of Energy Storage Technology, Xi'an Jiaotong University, Xi'an, 710049, China
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Yu H, Li X, Li Y, Wang T, Wang M, Mao P. MiR-4524b-5p-targeting ALDH1A3 attenuates the proliferation and radioresistance of glioblastoma via PI3K/AKT/mTOR signaling. CNS Neurosci Ther 2024; 30:e14396. [PMID: 37551838 PMCID: PMC10848107 DOI: 10.1111/cns.14396] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2023] [Revised: 07/10/2023] [Accepted: 07/26/2023] [Indexed: 08/09/2023] Open
Abstract
Increasing evidence has revealed a strong connection between the aldehyde dehydrogenase family member ALDH1A3 and tumorigenesis, therapy resistance, and prognosis in diverse types of cancer. However, the specific miRNA involved in the pathways that regulate ALDH1A3-mediated glioblastoma (GBM) radioresistance remains to be elucidated. In this study, we demonstrated a high expression of ALDH1A3 in GBM cells, which plays a critical role in their proliferation and radioresistance. We also identified miR-4524b-5p, which is downregulated in GBM, as the ALDH1A3 upstream regulator. Overexpression of miR-4524b-5p reduced proliferation and radioresistance in GBM cells. Moreover, silencing ALDH1A3 reduced PI3K/AKT/mTOR signaling and glycolytic activity in GBM cells, whereas inhibiting mTOR reversed the radioresistance effects of ALDH1A3 on these cells. In vivo experiments have evidenced that ALDH1A3 silencing and miR-4524b-5p overexpression significantly reduced tumor growth and GBM cells radioresistance. In summary, targeting the miR-4524b-5p and ALDH1A3 axis is a promising therapeutic strategy for treating GBM.
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Affiliation(s)
- Hai Yu
- Department of NeurosurgeryThe First Affiliated Hospital of Xi'an Jiaotong UniversityXi'anShaanxiChina
- Center of Brain ScienceThe First Affiliated Hospital of Xi'an Jiaotong UniversityXi'anShaanxiChina
| | - Xiaodong Li
- Department of NeurosurgeryThe First Affiliated Hospital of Xi'an Jiaotong UniversityXi'anShaanxiChina
- Center of Brain ScienceThe First Affiliated Hospital of Xi'an Jiaotong UniversityXi'anShaanxiChina
| | - Yi Li
- Department of RadiotherapyThe First Affiliated Hospital of Xi'an Jiaotong UniversityXi'anShaanxiChina
| | - Tuo Wang
- Department of NeurosurgeryThe First Affiliated Hospital of Xi'an Jiaotong UniversityXi'anShaanxiChina
| | - Maode Wang
- Department of NeurosurgeryThe First Affiliated Hospital of Xi'an Jiaotong UniversityXi'anShaanxiChina
| | - Ping Mao
- Department of NeurosurgeryThe First Affiliated Hospital of Xi'an Jiaotong UniversityXi'anShaanxiChina
- Center of Brain ScienceThe First Affiliated Hospital of Xi'an Jiaotong UniversityXi'anShaanxiChina
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Zhang J, Zhao T, Zhang P, Shi Z, Da Q, Ma H, Jing L. Moslosooflavone protects against brain injury induced by hypobaric hypoxic via suppressing oxidative stress, neuroinflammation, energy metabolism disorder, and apoptosis. J Pharm Pharmacol 2024; 76:44-56. [PMID: 37991718 DOI: 10.1093/jpp/rgad109] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2023] [Accepted: 11/06/2023] [Indexed: 11/23/2023]
Abstract
OBJECTIVES To investigate the protect effect of moslosooflavone against brain injury induced by hypobaric hypoxia (HH) in mice. METHODS Protective effects of moslosooflavone in oxidative stress, neuroinflammation, energy metabolism disorder, and apoptosis were studied in HH-induced brain damage mice. The pathological morphology in the cortex of mice was determined by hematoxylin and eosin staining. The related protein expressions were detected by western blot. KEY FINDINGS Moslosooflavone improved HH-induced brain histopathological changes, reduced the contents of ROS and MDA, and elevated the levels of antioxidant enzymes and GSH in HH-exposed brains of mice. Moslosooflavone also markedly enhanced the ATPase activities and PK, ATP contents, while reducing LDH activity and the LD, TNF-α, IL-1β, and IL-6 contents HH-exposed brains of mice. In addition, moslosooflavone notably decreased the expression of HIF-1α, VEGF, Bax, and cleaved caspase-3 dramatically increasing the expression of Bcl-2, Nrf2, and HO‑1 in HH-exposed brains of mice. CONCLUSIONS Our current studies indicate that moslosooflavone protects HH-induced brain injury possibly through alleviating oxidative stress and neuroinflammation, maintaining the balance of energy metabolism, and inhibiting cell apoptosis.
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Affiliation(s)
- Jie Zhang
- Department of Pharmacy, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi 710061, China
- Department of Pharmacy, The 940th Hospital of Joint Logistics Support Force of PLA, Lanzhou, Gansu 730050, China
| | - Tong Zhao
- Department of Pharmacy, Gansu Provincial Maternity and Child Care Hospital, Lanzhou, Gansu 730050, China
| | - Pengpeng Zhang
- Department of Pharmacy, The 940th Hospital of Joint Logistics Support Force of PLA, Lanzhou, Gansu 730050, China
| | - Zhiqun Shi
- Department of Pharmacy, The 940th Hospital of Joint Logistics Support Force of PLA, Lanzhou, Gansu 730050, China
| | - Qingyue Da
- Department of Pharmacy, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi 710061, China
- Department of Pharmacy, The 940th Hospital of Joint Logistics Support Force of PLA, Lanzhou, Gansu 730050, China
| | - Huiping Ma
- Department of Pharmacy, The 940th Hospital of Joint Logistics Support Force of PLA, Lanzhou, Gansu 730050, China
| | - Linlin Jing
- Department of Pharmacy, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi 710061, China
- Department of Pharmacy, The 940th Hospital of Joint Logistics Support Force of PLA, Lanzhou, Gansu 730050, China
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Yang C, Wang H, Cao Z, Chen X, Zhou G, Zhao H, Wu Z, Zhao Y, Sun B. Memristor-Based Bionic Tactile Devices: Opening the Door for Next-Generation Artificial Intelligence. Small 2023:e2308918. [PMID: 38149504 DOI: 10.1002/smll.202308918] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/06/2023] [Revised: 11/13/2023] [Indexed: 12/28/2023]
Abstract
Bioinspired tactile devices can effectively mimic and reproduce the functions of the human tactile system, presenting significant potential in the field of next-generation wearable electronics. In particular, memristor-based bionic tactile devices have attracted considerable attention due to their exceptional characteristics of high flexibility, low power consumption, and adaptability. These devices provide advanced wearability and high-precision tactile sensing capabilities, thus emerging as an important research area within bioinspired electronics. This paper delves into the integration of memristors with other sensing and controlling systems and offers a comprehensive analysis of the recent research advancements in memristor-based bionic tactile devices. These advancements incorporate artificial nociceptors and flexible electronic skin (e-skin) into the category of bio-inspired sensors equipped with capabilities for sensing, processing, and responding to stimuli, which are expected to catalyze revolutionary changes in human-computer interaction. Finally, this review discusses the challenges faced by memristor-based bionic tactile devices in terms of material selection, structural design, and sensor signal processing for the development of artificial intelligence. Additionally, it also outlines future research directions and application prospects of these devices, while proposing feasible solutions to address the identified challenges.
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Affiliation(s)
- Chuan Yang
- School of Physical Science and Technology, Key Laboratory of Advanced Technology of Materials, Southwest Jiaotong University, Chengdu, Sichuan, 610031, China
| | - Hongyan Wang
- School of Physical Science and Technology, Key Laboratory of Advanced Technology of Materials, Southwest Jiaotong University, Chengdu, Sichuan, 610031, China
| | - Zelin Cao
- Frontier Institute of Science and Technology (FIST), Xi'an Jiaotong University, Xi'an, Shaanxi, 710049, China
| | - Xiaoliang Chen
- Frontier Institute of Science and Technology (FIST), Xi'an Jiaotong University, Xi'an, Shaanxi, 710049, China
| | - Guangdong Zhou
- College of Artificial Intelligence, Brain-inspired Computing & Intelligent Control of Chongqing Key Lab, Southwest University, Chongqing, 400715, China
| | - Hongbin Zhao
- State Key Laboratory of Advanced Materials for Smart Sensing, General Research Institute for Nonferrous Metals, Beijing, 100088, China
| | - Zhenhua Wu
- School of Mechanical Engineering, Shanghai Jiao Tong University, 800 DongChuan Rd, Shanghai, 200240, China
| | - Yong Zhao
- School of Physical Science and Technology, Key Laboratory of Advanced Technology of Materials, Southwest Jiaotong University, Chengdu, Sichuan, 610031, China
- Fujian Provincial Collaborative Innovation Center for Advanced High-Field Superconducting Materials and Engineering, Fujian Normal University, Fuzhou, Fujian, 350117, China
| | - Bai Sun
- Frontier Institute of Science and Technology (FIST), Xi'an Jiaotong University, Xi'an, Shaanxi, 710049, China
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He Y, Zheng Y, Liu X, Liu C, Zhang H, Han J. Polyvinyl Alcohol-Citric Acid: A New Material for Green and Efficient Removal of Cationic Dye Wastewater. Polymers (Basel) 2023; 15:4341. [PMID: 38006066 PMCID: PMC10675270 DOI: 10.3390/polym15224341] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2023] [Revised: 10/31/2023] [Accepted: 11/04/2023] [Indexed: 11/26/2023] Open
Abstract
The citric acid (CA) cross-linked polyvinyl alcohol (PVA) adsorbent, PVA-CA, was efficiently synthesized and its application to the removal of dyes in water, particularly the cationic dye, methylene blue (MB), was thoroughly investigated. The morphologies and physiochemical characteristics of PVA-CA were fully characterized by SEM, FT-IR, XRD, TGA, BET, and XPS. The effects of contact time, adsorbent dosage, MB concentration, solution pH, and temperature on the adsorption performance were compared using controllable methods. The maximum adsorption capacity of PVA-CA was 709.86 mg g-1 and the removal rate remained high through several adsorption-desorption cycles, demonstrating that such a composite absorbent has a good adsorption performance and recoverability. Further analysis by the density functional theory (DFT) showed that van der Waals interactions, electrostatic interactions and hydrogen bonding interactions between PVA-CA and MB played significant roles in the adsorption mechanism.
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Affiliation(s)
- Ye He
- School of Chemical Engineering and Technology, Xi’an Jiaotong University, Xi’an 710049, China
| | - Yangyang Zheng
- School of Chemical Engineering and Technology, Xi’an Jiaotong University, Xi’an 710049, China
| | - Xia Liu
- Shandong Nonmetallic Materials Institute, Jinan 250031, China
| | - Chang Liu
- School of Chemical Engineering and Technology, Xi’an Jiaotong University, Xi’an 710049, China
| | - Huacheng Zhang
- School of Chemical Engineering and Technology, Xi’an Jiaotong University, Xi’an 710049, China
| | - Jie Han
- Key Laboratory of Advanced Energy Materials Chemistry (Ministry of Education), College of Chemistry, Nankai University, Tianjin 300071, China
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9
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Qiu J, Ma J, Han W, Wang X, Wang X, Heini M, Li B, Sun D, Zhang R, Shi Y, Gao C. Effects of Electron Irradiation and Temperature on Mechanical Properties of Polyimide Film. Polymers (Basel) 2023; 15:3805. [PMID: 37765658 PMCID: PMC10535023 DOI: 10.3390/polym15183805] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2023] [Revised: 09/01/2023] [Accepted: 09/09/2023] [Indexed: 09/29/2023] Open
Abstract
Polyimide (PI) is widely deployed in space missions due to its good radiation resistance and durability. The influences from radiation and harsh temperatures should be carefully evaluated during the long-term service life. In the current work, the coupled thermal and radiation effects on the mechanical properties of PI samples were quantitatively investigated via experiments. At first, various PI specimens were prepared, and electron irradiation tests were conducted with different fluences. Then, both uniaxial tensile tests at room temperature and the dynamic mechanical analysis at varied temperatures of PI specimens with and without electron irradiation were performed. After that, uniaxial tensile tests at low and high temperatures were performed. The fracture surface of the PI film was observed using a scanning electron microscope, and its surface topography was measured using atomic force microscopy. In the meantime, the Fourier-transform infrared spectrum tests were conducted to check for chemical changes. In conclusion, the tensile tests showed that electron irradiation has a negligible effect during the linear stretching period but significantly impacts the hardening stage and elongation at break. Moreover, electron irradiation slightly influences the thermal properties of PI according to the differential scanning calorimetry results. However, both high and low temperatures dramatically affect the elastic modulus and elongation at break of PI.
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Affiliation(s)
- Jian Qiu
- State Key Laboratory of Mechanics and Control for Aerospace Structures, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China
- School of Chemistry and Civil Engineering, Shaoguan University, Shaoguan 512005, China
| | - Jusha Ma
- Shanghai Institute of Space Power-Sources, Shanghai 200245, China
| | - Wenjia Han
- Shanghai Institute of Space Power-Sources, Shanghai 200245, China
| | - Xiao Wang
- State Key Laboratory of Mechanics and Control for Aerospace Structures, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China
| | - Xunchun Wang
- Shanghai Institute of Space Power-Sources, Shanghai 200245, China
| | - Maliya Heini
- Xinjiang Key Laboratory of Electronic Information Materials and Devices, Chinese Academy of Sciences, Urumqi 830011, China
| | - Bingyang Li
- China Academy of Aerospace Science and Innovation, Beijing 100871, China
- College of Engineering, Peking University, Beijing 100871, China
| | - Dongyang Sun
- School of Naval Architecture and Ocean Engineering, Jiangsu University of Science and Technology, Zhenjiang 212003, China
| | - Ruifeng Zhang
- School of Electrical Information Engineering, Ningxia Institute of Science and Technology, Shizuishan 753000, China
| | - Yan Shi
- State Key Laboratory of Mechanics and Control for Aerospace Structures, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China
- School of Electrical Information Engineering, Ningxia Institute of Science and Technology, Shizuishan 753000, China
| | - Cunfa Gao
- State Key Laboratory of Mechanics and Control for Aerospace Structures, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China
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10
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Zhang N, Xue F, Wu XN, Zhang W, Hou JJ, Xiang JX, Lv Y, Zhang XF. The global burden of alcoholic liver disease: a systematic analysis of the global burden of disease study 2019. Alcohol Alcohol 2023; 58:485-496. [PMID: 37452498 DOI: 10.1093/alcalc/agad046] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2023] [Revised: 06/08/2023] [Accepted: 06/25/2023] [Indexed: 07/18/2023] Open
Abstract
Alcohol use is a major risk factor for the burden of mortality and morbidity. Alcoholic cirrhosis (AC) and alcoholic liver cancer (ALC) are most important and severe liver disease outcomes caused by alcohol use. The objectives of the current study were to investigate the global prevalence and burden of disease in disability-adjusted life years (DALYs) for AC and ALC, based on data from the Global Burden of Disease (GBD). Incidence, prevalence, death, and DALYs for GBDs in different locations, years, sex, and age groups were estimated using DisMod-MR 2.1 and a generic Cause of Death Ensemble Modeling approach. The correlations between the age-standardized incidence rate or age-standardized death rate and gender, sociodemographic index (SDI), and alcohol usage were conducted by Generalized Linear Models. Globally, the changes of age-standardized rates of indicators were not much significant over the 30-year period. However, the changes varied widely across regions. Central Asia and East Europe contributed the highest age-standardized incidence, prevalence, death, and DALYs and increased sharply by past 30 years. Generalized Linear Models (GLMs) showed male gender as a risk factor of AC, with the relative risk of incidence of 1.521 and relative risk of death of 1.503. Globally, there were improvements in overall health with regard to GBDs over the 30 years. However, the prevention of AC and ALC should be promoted in middle and middle-high SDI regions, especially Central Asia and East Europe, whereas more medical resources should be provided to improve treatment levels in low SDI region.
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Affiliation(s)
- Nan Zhang
- Department of Hepatobiliary Surgery and Institute of Advanced Surgical Technology and Engineering, The First Affiliated Hospital of Xi'an Jiaotong University, 277 West Yanta Road, Xi'an, Shaanxi Province, PR China
- National Local Joint Engineering Research Center for Precision Surgery and Regenerative Medicine, The First Affiliated Hospital of Xi'an Jiaotong University, 277 West Yanta Road, Xi'an, Shaanxi Province, PR China
| | - Feng Xue
- Department of Hepatobiliary Surgery and Institute of Advanced Surgical Technology and Engineering, The First Affiliated Hospital of Xi'an Jiaotong University, 277 West Yanta Road, Xi'an, Shaanxi Province, PR China
| | - Xiao-Ning Wu
- Department of Hepatobiliary Surgery and Institute of Advanced Surgical Technology and Engineering, The First Affiliated Hospital of Xi'an Jiaotong University, 277 West Yanta Road, Xi'an, Shaanxi Province, PR China
- National Local Joint Engineering Research Center for Precision Surgery and Regenerative Medicine, The First Affiliated Hospital of Xi'an Jiaotong University, 277 West Yanta Road, Xi'an, Shaanxi Province, PR China
| | - Wei Zhang
- Department of Hepatobiliary Surgery and Institute of Advanced Surgical Technology and Engineering, The First Affiliated Hospital of Xi'an Jiaotong University, 277 West Yanta Road, Xi'an, Shaanxi Province, PR China
- National Local Joint Engineering Research Center for Precision Surgery and Regenerative Medicine, The First Affiliated Hospital of Xi'an Jiaotong University, 277 West Yanta Road, Xi'an, Shaanxi Province, PR China
| | - Jing-Jing Hou
- Department of Hepatobiliary Surgery and Institute of Advanced Surgical Technology and Engineering, The First Affiliated Hospital of Xi'an Jiaotong University, 277 West Yanta Road, Xi'an, Shaanxi Province, PR China
- National Local Joint Engineering Research Center for Precision Surgery and Regenerative Medicine, The First Affiliated Hospital of Xi'an Jiaotong University, 277 West Yanta Road, Xi'an, Shaanxi Province, PR China
| | - Jun-Xi Xiang
- Department of Hepatobiliary Surgery and Institute of Advanced Surgical Technology and Engineering, The First Affiliated Hospital of Xi'an Jiaotong University, 277 West Yanta Road, Xi'an, Shaanxi Province, PR China
- National Local Joint Engineering Research Center for Precision Surgery and Regenerative Medicine, The First Affiliated Hospital of Xi'an Jiaotong University, 277 West Yanta Road, Xi'an, Shaanxi Province, PR China
| | - Yi Lv
- Department of Hepatobiliary Surgery and Institute of Advanced Surgical Technology and Engineering, The First Affiliated Hospital of Xi'an Jiaotong University, 277 West Yanta Road, Xi'an, Shaanxi Province, PR China
- National Local Joint Engineering Research Center for Precision Surgery and Regenerative Medicine, The First Affiliated Hospital of Xi'an Jiaotong University, 277 West Yanta Road, Xi'an, Shaanxi Province, PR China
| | - Xu-Feng Zhang
- Department of Hepatobiliary Surgery and Institute of Advanced Surgical Technology and Engineering, The First Affiliated Hospital of Xi'an Jiaotong University, 277 West Yanta Road, Xi'an, Shaanxi Province, PR China
- National Local Joint Engineering Research Center for Precision Surgery and Regenerative Medicine, The First Affiliated Hospital of Xi'an Jiaotong University, 277 West Yanta Road, Xi'an, Shaanxi Province, PR China
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11
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Liu H, Wang Y, Zhang B, Liu J, Huo Y, Cao S, Wu S, Wan Y, Xie X, Zeng L, Yan H, Dang S, Mi B. Associations between long-term blood pressure trajectory and all-cause and CVD mortality among old people in China. Front Cardiovasc Med 2023; 10:1157327. [PMID: 37663420 PMCID: PMC10471127 DOI: 10.3389/fcvm.2023.1157327] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2023] [Accepted: 08/03/2023] [Indexed: 09/05/2023] Open
Abstract
Background Optimal blood pressure (BP) management strategy among the elderly remains controversial, with insufficient consideration of long-term BP trajectory. This study aimed to identify BP trajectory patterns as well as terminal BP trajectory among the Chinese elderly and to explore the relationships between BP trajectories and all-cause mortality and cardiovascular disease (CVD) mortality. Methods We included 11,181 participants older than 60 at baseline (mean age, 80.98 ± 10.71) with 42,871 routine BP measurements from the Chinese Longitudinal Healthy Longevity Survey. Latent class trajectory analysis and Cox proportional hazard model were conducted to identify trajectory patterns and their associations with mortality. Furthermore, we also applied mixed-effects model to identify terminal BP trajectories among the elderly. Results Compared with stable at normal high level trajectory, excess systolic BP (SBP) trajectory with decreasing trend was associated with a 34% (HR = 1.34, 95% CI: 1.23-1.45) higher risk of all-cause mortality. Considering the competing risk of non-CVD death, excess BP trajectory with decreasing trend had a more pronounced effect on CVD mortality, in which HR (95% CI) was 1.67 (1.17, 2.37). Similar results were also found in diastolic BP (DBP), pulse pressure (PP), and mean arterial pressure (MAP) trajectories. We further conducted a mixed-effects model and observed that SBP and PP trajectories first increased and began to decline slightly six years before death. In contrast, DBP and MAP showed continuous decline 15 years before death. Conclusion Long-term BP trajectory was associated with all-cause mortality, especially CVD mortality. Keeping a stable BP over time may be an important way for CVD prevention among the elderly.
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Affiliation(s)
- Huimeng Liu
- Department of Occupational and Environmental Health, School of Public Health, Xi’an Jiaotong University Health Science Center, Xi’an, China
- Key Laboratory for Disease Prevention and Control and Health Promotion of Shaanxi Province, Xi’an, China
| | - Yutong Wang
- Key Laboratory for Disease Prevention and Control and Health Promotion of Shaanxi Province, Xi’an, China
- Global Health Institute, School of Public Health, Xi’an Jiaotong University Health Science Center, Xi’an, China
- Department of Epidemiology and Biostatistics, School of Public Health, Xi’an Jiaotong University Health Science Center, Xi’an, China
| | - Binyan Zhang
- Key Laboratory for Disease Prevention and Control and Health Promotion of Shaanxi Province, Xi’an, China
- Global Health Institute, School of Public Health, Xi’an Jiaotong University Health Science Center, Xi’an, China
- Department of Epidemiology and Biostatistics, School of Public Health, Xi’an Jiaotong University Health Science Center, Xi’an, China
| | - Jingchun Liu
- Key Laboratory for Disease Prevention and Control and Health Promotion of Shaanxi Province, Xi’an, China
- Global Health Institute, School of Public Health, Xi’an Jiaotong University Health Science Center, Xi’an, China
- Department of Epidemiology and Biostatistics, School of Public Health, Xi’an Jiaotong University Health Science Center, Xi’an, China
| | - Yating Huo
- Key Laboratory for Disease Prevention and Control and Health Promotion of Shaanxi Province, Xi’an, China
- Global Health Institute, School of Public Health, Xi’an Jiaotong University Health Science Center, Xi’an, China
- Department of Epidemiology and Biostatistics, School of Public Health, Xi’an Jiaotong University Health Science Center, Xi’an, China
| | - Suixia Cao
- Key Laboratory for Disease Prevention and Control and Health Promotion of Shaanxi Province, Xi’an, China
- Global Health Institute, School of Public Health, Xi’an Jiaotong University Health Science Center, Xi’an, China
- Department of Epidemiology and Biostatistics, School of Public Health, Xi’an Jiaotong University Health Science Center, Xi’an, China
| | - Shaowei Wu
- Department of Occupational and Environmental Health, School of Public Health, Xi’an Jiaotong University Health Science Center, Xi’an, China
| | - Yong Wan
- Department of Geriatric Surgery, First Affiliated Hospital, Xi’an Jiaotong University, Xi’an, China
| | - Xinming Xie
- Department of Respiratory and Critical Care Medicine, First Affiliated Hospital of Xi’an Jiaotong University, Xi'an, China
| | - Lingxia Zeng
- Key Laboratory for Disease Prevention and Control and Health Promotion of Shaanxi Province, Xi’an, China
- Global Health Institute, School of Public Health, Xi’an Jiaotong University Health Science Center, Xi’an, China
- Department of Epidemiology and Biostatistics, School of Public Health, Xi’an Jiaotong University Health Science Center, Xi’an, China
| | - Hong Yan
- Key Laboratory for Disease Prevention and Control and Health Promotion of Shaanxi Province, Xi’an, China
- Global Health Institute, School of Public Health, Xi’an Jiaotong University Health Science Center, Xi’an, China
- Department of Epidemiology and Biostatistics, School of Public Health, Xi’an Jiaotong University Health Science Center, Xi’an, China
| | - Shaonong Dang
- Key Laboratory for Disease Prevention and Control and Health Promotion of Shaanxi Province, Xi’an, China
- Global Health Institute, School of Public Health, Xi’an Jiaotong University Health Science Center, Xi’an, China
- Department of Epidemiology and Biostatistics, School of Public Health, Xi’an Jiaotong University Health Science Center, Xi’an, China
| | - Baibing Mi
- Key Laboratory for Disease Prevention and Control and Health Promotion of Shaanxi Province, Xi’an, China
- Global Health Institute, School of Public Health, Xi’an Jiaotong University Health Science Center, Xi’an, China
- Department of Epidemiology and Biostatistics, School of Public Health, Xi’an Jiaotong University Health Science Center, Xi’an, China
- Department of Geriatric Surgery, First Affiliated Hospital, Xi’an Jiaotong University, Xi’an, China
- Department of Respiratory and Critical Care Medicine, First Affiliated Hospital of Xi’an Jiaotong University, Xi'an, China
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12
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Wang Z, Qin Y, Wu T, Zhang J, Ding S, Su Y. Theoretical Study on B-doped FeN 4 Catalyst for Potential-Dependent Oxygen Reduction Reaction. Chemphyschem 2023; 24:e202300152. [PMID: 37309015 DOI: 10.1002/cphc.202300152] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2023] [Revised: 06/10/2023] [Accepted: 06/12/2023] [Indexed: 06/14/2023]
Abstract
Electrochemical reactions mostly take place at a constant potential, but traditional DFT calculations operate at a neutral charge state. In order to really model experimental conditions, we developed a fixed-potential simulation framework via the iterated optimization and self-consistence of the required Fermi level. The B-doped graphene-based FeN4 sites for oxygen reduction reaction were chosen as the model to evaluate the accuracy of the fixed-potential simulation. The results demonstrate that *OH hydrogenation gets facile while O2 adsorption or hydrogenation becomes thermodynamically unfavorable due to the lower d-band center of Fe atoms in the constant potential state than the neutral charge state. The onset potential of ORR over B-doped FeN4 by performing potential-dependent simulations agree well with experimental findings. This work indicates that the fixed-potential simulation can provide a reasonable and accurate description on electrochemical reactions.
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Affiliation(s)
- Ziwei Wang
- School of Chemistry, Engineering Research Center of Energy Storage Materials and Devices of Ministry of Education, State Key Laboratory of Electrical Insulation and Power Equipment, National Innovation Platform (Center) for Industry-Education Integration of Energy Storage Technology, Xi'an Jiaotong University, Xi'an, 710049, China
| | - Yanyang Qin
- School of Chemistry, Engineering Research Center of Energy Storage Materials and Devices of Ministry of Education, State Key Laboratory of Electrical Insulation and Power Equipment, National Innovation Platform (Center) for Industry-Education Integration of Energy Storage Technology, Xi'an Jiaotong University, Xi'an, 710049, China
| | - Tiantian Wu
- School of Chemistry, Engineering Research Center of Energy Storage Materials and Devices of Ministry of Education, State Key Laboratory of Electrical Insulation and Power Equipment, National Innovation Platform (Center) for Industry-Education Integration of Energy Storage Technology, Xi'an Jiaotong University, Xi'an, 710049, China
| | - Jianrui Zhang
- School of Chemistry, Engineering Research Center of Energy Storage Materials and Devices of Ministry of Education, State Key Laboratory of Electrical Insulation and Power Equipment, National Innovation Platform (Center) for Industry-Education Integration of Energy Storage Technology, Xi'an Jiaotong University, Xi'an, 710049, China
| | - Shujiang Ding
- School of Chemistry, Engineering Research Center of Energy Storage Materials and Devices of Ministry of Education, State Key Laboratory of Electrical Insulation and Power Equipment, National Innovation Platform (Center) for Industry-Education Integration of Energy Storage Technology, Xi'an Jiaotong University, Xi'an, 710049, China
| | - Yaqiong Su
- School of Chemistry, Engineering Research Center of Energy Storage Materials and Devices of Ministry of Education, State Key Laboratory of Electrical Insulation and Power Equipment, National Innovation Platform (Center) for Industry-Education Integration of Energy Storage Technology, Xi'an Jiaotong University, Xi'an, 710049, China
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13
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Wang H, Zhuang T, Wang J, Sun X, Wang Y, Li K, Dai X, Guo Q, Li X, Chong D, Chen B, Yan J. Multifunctional Filler-Free PEDOT:PSS Hydrogels with Ultrahigh Electrical Conductivity Induced by Lewis-Acid-Promoted Ion Exchange. Adv Mater 2023; 35:e2302919. [PMID: 37352335 DOI: 10.1002/adma.202302919] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/29/2023] [Revised: 06/09/2023] [Indexed: 06/25/2023]
Abstract
Highly conductive hydrogels with biotissue-like mechanical properties are of great interest in the emerging field of hydrogel bioelectronics due to their good biocompatibility, deformability, and stability. Fully polymeric hydrogels may exhibit comparable Young's modulus to biotissues. However, most of these filler-free hydrogels have a low electrical conductivity of <10 S cm-1 , which limits their wide applications of them in digital circuits or bioelectronic devices. In this work, a series of metal-halides-doped poly(3,4-ethylenedioxythiophene):poly(styrene sulfonate) (PEDOT:PSS) hydrogels with an ultrahigh electrical conductivity up to 547 S cm-1 is reported, which is 1.5 times to 104 times higher than previously reported filler-free polymeric hydrogels. Theoretical calculation demonstrated that the ion exchange between PEDOT:PSS and the metal halides played an important role to promote phase separation in the hydrogels, which thus leads to ultrahigh electrical conductivity. The high electrical conductivity resulted in multifunctional hydrogels with high performance in thermoelectrics, electromagnetic shielding, Joule heating, and sensing. Such flexible and stretchable hydrogels with ultrahigh electrical conductivity and stability upon various deformations are promising for soft bioelectronics devices and wearable electronics.
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Affiliation(s)
- Hong Wang
- State Key Laboratory of Multiphase Flow in Power Engineering & Frontier Institute of Science and Technology, Xi'an Jiaotong University, Xi'an, 710054, China
- School of Energy and Power Engineering, Xi'an Jiaotong University, Xi'an, 710054, China
- Shaanxi Jianeng Flexible Thermoelectric Technology, Inc.|Western China Science and Technology Innovation Port, Fengxi New City, Xixian New District, Xi'an, 710048, China
| | - Tiantian Zhuang
- State Key Laboratory of Multiphase Flow in Power Engineering & Frontier Institute of Science and Technology, Xi'an Jiaotong University, Xi'an, 710054, China
| | - Jing Wang
- State Key Laboratory of Multiphase Flow in Power Engineering & Frontier Institute of Science and Technology, Xi'an Jiaotong University, Xi'an, 710054, China
| | - Xu Sun
- State Key Laboratory of Multiphase Flow in Power Engineering & Frontier Institute of Science and Technology, Xi'an Jiaotong University, Xi'an, 710054, China
| | - Yizhuo Wang
- State Key Laboratory of Multiphase Flow in Power Engineering & Frontier Institute of Science and Technology, Xi'an Jiaotong University, Xi'an, 710054, China
| | - Kuncai Li
- State Key Laboratory of Multiphase Flow in Power Engineering & Frontier Institute of Science and Technology, Xi'an Jiaotong University, Xi'an, 710054, China
| | - Xu Dai
- State Key Laboratory of Multiphase Flow in Power Engineering & Frontier Institute of Science and Technology, Xi'an Jiaotong University, Xi'an, 710054, China
| | - Qinyue Guo
- The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, 710054, China
| | - Xuhui Li
- State Key Laboratory of Multiphase Flow in Power Engineering & Frontier Institute of Science and Technology, Xi'an Jiaotong University, Xi'an, 710054, China
| | - Daotong Chong
- State Key Laboratory of Multiphase Flow in Power Engineering & Frontier Institute of Science and Technology, Xi'an Jiaotong University, Xi'an, 710054, China
- School of Energy and Power Engineering, Xi'an Jiaotong University, Xi'an, 710054, China
| | - Bin Chen
- State Key Laboratory of Multiphase Flow in Power Engineering & Frontier Institute of Science and Technology, Xi'an Jiaotong University, Xi'an, 710054, China
- School of Energy and Power Engineering, Xi'an Jiaotong University, Xi'an, 710054, China
| | - Junjie Yan
- State Key Laboratory of Multiphase Flow in Power Engineering & Frontier Institute of Science and Technology, Xi'an Jiaotong University, Xi'an, 710054, China
- School of Energy and Power Engineering, Xi'an Jiaotong University, Xi'an, 710054, China
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14
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Wang Y, Shen S, He C, Zhou Y, Zhang K, Rao B, Han T, Su Y, Duan XH, Liu L. Cu(ii)-mediated direct intramolecular cyclopropanation of distal olefinic acetate: access to cyclopropane-fused γ-lactones. Chem Sci 2023; 14:6663-6668. [PMID: 37350833 PMCID: PMC10284120 DOI: 10.1039/d3sc01752d] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2023] [Accepted: 05/24/2023] [Indexed: 06/24/2023] Open
Abstract
Cyclopropane-fused ring scaffolds represent one of the most appealing structural motifs in organic chemistry due to their wide presence in bioactive molecules and versatility in organic synthesis. These skeletons are typically prepared from olefinic diazo compounds via transition-metal catalysed intramolecular carbenoid insertion, which suffers from prefunctionalization of starting materials and limited substrate scope. Herein, we disclose a practical copper-mediated direct intramolecular cyclopropanation of distal olefinic acetate to synthesize cyclopropane-fused γ-lactones and lactams. This cascade reaction is postulated to proceed through a hydrogen atom transfer event induced radical cyclization and copper-mediated cyclopropanation sequence. The protocol features high atom- and step-economy, excellent diastereoselectivity, broad tolerance of functional groups, and operational simplicity.
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Affiliation(s)
- Yulong Wang
- School of Chemistry, Engineering Research Center of Energy Storage Materials and Devices, Ministry of Education, Xi'an Key Laboratory of Sustainable Energy Material Chemistry, Xi'an Jiaotong University Xi'an 710049 China
| | - Shenyu Shen
- School of Chemistry, Engineering Research Center of Energy Storage Materials and Devices, Ministry of Education, Xi'an Key Laboratory of Sustainable Energy Material Chemistry, Xi'an Jiaotong University Xi'an 710049 China
| | - Chonglong He
- School of Chemistry, Engineering Research Center of Energy Storage Materials and Devices, Ministry of Education, Xi'an Key Laboratory of Sustainable Energy Material Chemistry, Xi'an Jiaotong University Xi'an 710049 China
| | - Youkang Zhou
- School of Chemistry, Engineering Research Center of Energy Storage Materials and Devices, Ministry of Education, Xi'an Key Laboratory of Sustainable Energy Material Chemistry, Xi'an Jiaotong University Xi'an 710049 China
| | - Keyuan Zhang
- School of Chemistry, Engineering Research Center of Energy Storage Materials and Devices, Ministry of Education, Xi'an Key Laboratory of Sustainable Energy Material Chemistry, Xi'an Jiaotong University Xi'an 710049 China
| | - Bin Rao
- School of Chemistry, Engineering Research Center of Energy Storage Materials and Devices, Ministry of Education, Xi'an Key Laboratory of Sustainable Energy Material Chemistry, Xi'an Jiaotong University Xi'an 710049 China
| | - Tian Han
- School of Chemistry, Engineering Research Center of Energy Storage Materials and Devices, Ministry of Education, Xi'an Key Laboratory of Sustainable Energy Material Chemistry, Xi'an Jiaotong University Xi'an 710049 China
| | - Yaqiong Su
- School of Chemistry, Engineering Research Center of Energy Storage Materials and Devices, Ministry of Education, Xi'an Key Laboratory of Sustainable Energy Material Chemistry, Xi'an Jiaotong University Xi'an 710049 China
| | - Xin-Hua Duan
- School of Chemistry, Engineering Research Center of Energy Storage Materials and Devices, Ministry of Education, Xi'an Key Laboratory of Sustainable Energy Material Chemistry, Xi'an Jiaotong University Xi'an 710049 China
| | - Le Liu
- School of Chemistry, Engineering Research Center of Energy Storage Materials and Devices, Ministry of Education, Xi'an Key Laboratory of Sustainable Energy Material Chemistry, Xi'an Jiaotong University Xi'an 710049 China
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15
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Yuan H, Li K, Shi D, Yang H, Yu X, Fan W, Buenconsejo PJS, Zhao D. Large-Area Fabrication of Ultrathin Metal-Organic Framework Membranes. Adv Mater 2023; 35:e2211859. [PMID: 36852540 DOI: 10.1002/adma.202211859] [Citation(s) in RCA: 9] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/18/2022] [Revised: 02/13/2023] [Indexed: 05/05/2023]
Abstract
Metal-organic framework (MOF)-based membranes, featuring potential molecular sieving effects and therefore capable of surmounting the ubiquitous trade-off between membrane selectivity and permeability, hold great promise for multitudinous chemical separations. Nevertheless, it remains highly challenging for the large-area fabrication of ultrathin MOF membranes with variable thickness, great homogeneity, and preferential orientation. Herein, this work reports the facile fabrication of ultrathin (down to 20 nm) NUS-8 membranes in large-area (>200 cm2 ) yet with great homogeneity and texture along (00l) direction due to the superior solution processability of the as-synthesized NUS-8 nanosheets. The resultant NUS-8 membranes with good adhesion properties and certain flexibility exhibit excellent rejections (>98% for Mg2+ and Al3+ , and dyes with molecular weights larger than 585.5 g mol-1 ) toward aqueous separation of various metal ions and dyes at modest permeance (1-3.2 L m-2 h-1 bar-1 ) due to the well-aligned structures. Such separation performance outstands among polymetric membranes, thin-film composite membranes, mixed matrix membranes, and other MOF membranes reported in the literature. The separation mechanism is reasonably discussed based on the experimental and theoretical results. This study opens up novel perspectives for preparing ultrathin and large-area MOF membranes using the solution processability of MOFs.
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Affiliation(s)
- Hongye Yuan
- Department of Chemical and Biomolecular Engineering, National University of Singapore, 4 Engineering Drive 4, Singapore, 117585, Singapore
- State Key Laboratory for Mechanical Behavior of Materials, Shaanxi International Research Center for Soft Matter, School of Materials Science and Engineering, Xi'an Jiaotong University, Xi'an, 710049, P. R. China
- State Key Laboratory of Molecular Engineering of Polymers, Fudan University, Shanghai, 200438, P. R. China
| | - Kerui Li
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Materials Science and Engineering, Donghua University, Shanghai, 201620, China
| | - Dongchen Shi
- Department of Chemical and Biomolecular Engineering, National University of Singapore, 4 Engineering Drive 4, Singapore, 117585, Singapore
| | - Hao Yang
- Department of Chemical and Biomolecular Engineering, National University of Singapore, 4 Engineering Drive 4, Singapore, 117585, Singapore
| | - Xin Yu
- Department of Chemical and Biomolecular Engineering, National University of Singapore, 4 Engineering Drive 4, Singapore, 117585, Singapore
| | - Weidong Fan
- Department of Chemical and Biomolecular Engineering, National University of Singapore, 4 Engineering Drive 4, Singapore, 117585, Singapore
| | - Pio John S Buenconsejo
- Facility for Analysis Characterization Testing Simulation (FACTS), Nanyang Technological University, 50 Nanyang Avenue, Singapore, 639798, Singapore
| | - Dan Zhao
- Department of Chemical and Biomolecular Engineering, National University of Singapore, 4 Engineering Drive 4, Singapore, 117585, Singapore
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16
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Dai L, Li S, Hao Q, Zhou R, Zhou H, Lei W, Kang H, Wu H, Li Y, Ma X. Low-density lipoprotein: a versatile nanoscale platform for targeted delivery. Nanoscale Adv 2023; 5:1011-1022. [PMID: 36798503 PMCID: PMC9926902 DOI: 10.1039/d2na00883a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/02/2022] [Accepted: 01/06/2023] [Indexed: 06/18/2023]
Abstract
Low-density lipoprotein (LDL) is a small lipoprotein that plays a vital role in controlling lipid metabolism. LDL has a delicate nanostructure with unique physicochemical properties: superior payload capacity, long residence time in circulation, excellent biocompatibility, smaller size, and natural targeting. In recent decades, the superiority and feasibility of LDL particles as targeted delivery carriers have attracted much attention. In this review, we introduce the structure, composition, advantages, defects, and reconstruction of LDL delivery systems, summarize their research status and progress in targeted diagnosis and therapy, and finally look forward to the clinical application of LDL as an effective delivery vehicle.
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Affiliation(s)
- Luyao Dai
- Department of Oncology, The Second Affiliated Hospital, Medical School of Xi'an Jiaotong University Xi'an Shaanxi 710061 China
- Department of Biophysics, School of Basic Medical Sciences, Key Laboratory of Environment and Genes Related to Diseases, Xi'an Jiaotong University Health Science Center Xi'an Shaanxi 710061 China
| | - Shuaijun Li
- Department of Biophysics, School of Basic Medical Sciences, Key Laboratory of Environment and Genes Related to Diseases, Xi'an Jiaotong University Health Science Center Xi'an Shaanxi 710061 China
| | - Qian Hao
- Department of Oncology, The Second Affiliated Hospital, Medical School of Xi'an Jiaotong University Xi'an Shaanxi 710061 China
- Department of Biophysics, School of Basic Medical Sciences, Key Laboratory of Environment and Genes Related to Diseases, Xi'an Jiaotong University Health Science Center Xi'an Shaanxi 710061 China
| | - Ruina Zhou
- Department of Oncology, The Second Affiliated Hospital, Medical School of Xi'an Jiaotong University Xi'an Shaanxi 710061 China
- Department of Biophysics, School of Basic Medical Sciences, Key Laboratory of Environment and Genes Related to Diseases, Xi'an Jiaotong University Health Science Center Xi'an Shaanxi 710061 China
| | - Hui Zhou
- Department of Oncology, The Second Affiliated Hospital, Medical School of Xi'an Jiaotong University Xi'an Shaanxi 710061 China
- Department of Biophysics, School of Basic Medical Sciences, Key Laboratory of Environment and Genes Related to Diseases, Xi'an Jiaotong University Health Science Center Xi'an Shaanxi 710061 China
| | - Wenxi Lei
- Department of Biophysics, School of Basic Medical Sciences, Key Laboratory of Environment and Genes Related to Diseases, Xi'an Jiaotong University Health Science Center Xi'an Shaanxi 710061 China
| | - Huafeng Kang
- Department of Oncology, The Second Affiliated Hospital, Medical School of Xi'an Jiaotong University Xi'an Shaanxi 710061 China
| | - Hao Wu
- Department of Oncology, The Second Affiliated Hospital, Medical School of Xi'an Jiaotong University Xi'an Shaanxi 710061 China
- Department of Biochemistry and Molecular Medicine, UC Davis Comprehensive Cancer Center, University of California Davis Sacramento CA 95817 USA
- Department of Biophysics, School of Basic Medical Sciences, Key Laboratory of Environment and Genes Related to Diseases, Xi'an Jiaotong University Health Science Center Xi'an Shaanxi 710061 China
| | - Yuanpei Li
- Department of Biochemistry and Molecular Medicine, UC Davis Comprehensive Cancer Center, University of California Davis Sacramento CA 95817 USA
| | - Xiaobin Ma
- Department of Oncology, The Second Affiliated Hospital, Medical School of Xi'an Jiaotong University Xi'an Shaanxi 710061 China
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Xu W, Yu H, Chen D, Pan W, Yang W, Miao J, Jia W, Zheng B, Liu Y, Chen X, Gao Y, Tian D. Identifying the potential transcriptional regulatory network in Hirschsprung disease by integrated analysis of microarray datasets. World J Pediatr Surg 2023; 6:e000547. [PMID: 37082700 PMCID: PMC10111925 DOI: 10.1136/wjps-2022-000547] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2022] [Accepted: 03/13/2023] [Indexed: 04/22/2023] Open
Abstract
Objective Hirschsprung disease (HSCR) is one of the common neurocristopathies in children, which is associated with at least 20 genes and involves a complex regulatory mechanism. Transcriptional regulatory network (TRN) has been commonly reported in regulating gene expression and enteric nervous system development but remains to be investigated in HSCR. This study aimed to identify the potential TRN implicated in the pathogenesis and diagnosis of HSCR. Methods Based on three microarray datasets from the Gene Expression Omnibus database, the multiMiR package was used to investigate the microRNA (miRNA)-target interactions, followed by Gene Ontology (GO) and Kyoto Encyclopedia of Genes and Genomes (KEGG) enrichment analyses. Then, we collected transcription factors (TFs) from the TransmiR database to construct the TF-miRNA-mRNA regulatory network and used cytoHubba to identify the key modules. Finally, the receiver operating characteristic (ROC) curve was determined and the integrated diagnostic models were established based on machine learning by the support vector machine method. Results We identified 58 hub differentially expressed microRNAs (DEMis) and 16 differentially expressed mRNAs (DEMs). The robust target genes of DEMis and DEMs mainly enriched in several GO/KEGG terms, including neurogenesis, cell-substrate adhesion, PI3K-Akt, Ras/mitogen-activated protein kinase and Rho/ROCK signaling. Moreover, 2 TFs (TP53 and TWIST1), 4 miRNAs (has-miR-107, has-miR-10b-5p, has-miR-659-3p, and has-miR-371a-5p), and 4 mRNAs (PIM3, CHUK, F2RL1, and CA1) were identified to construct the TF-miRNA-mRNA regulatory network. ROC analysis revealed a strong diagnostic value of the key TRN regulons (all area under the curve values were more than 0.8). Conclusion This study suggests a potential role of the TF-miRNA-mRNA network that can help enrich the connotation of HSCR pathogenesis and diagnosis and provide new horizons for treatment.
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Affiliation(s)
- Wenyao Xu
- Department of Pediatric Surgery, the Second Affiliated Hospital, Xi'an Jiaotong University, Xi'an, China
- Institute of Neurobiology, Environment and Genes Related to Diseases Key Laboratory of Chinese Ministry of Education, Xi'an Jiaotong University, Xi'an, China
| | - Hui Yu
- Department of Pediatric Surgery, the Second Affiliated Hospital, Xi'an Jiaotong University, Xi'an, China
- Institute of Neurobiology, Environment and Genes Related to Diseases Key Laboratory of Chinese Ministry of Education, Xi'an Jiaotong University, Xi'an, China
| | - Dian Chen
- Department of Pulmonary and Critical Care Medicine, Peking University Third Hospital, Peking University, Beijing, China
| | - Weikang Pan
- Department of Pediatric Surgery, the Second Affiliated Hospital, Xi'an Jiaotong University, Xi'an, China
| | - Weili Yang
- Department of Pediatric Surgery, the Second Affiliated Hospital, Xi'an Jiaotong University, Xi'an, China
| | - Jing Miao
- Department of Pediatric Surgery, the Second Affiliated Hospital, Xi'an Jiaotong University, Xi'an, China
| | - Wanying Jia
- Department of Pediatric Surgery, the Second Affiliated Hospital, Xi'an Jiaotong University, Xi'an, China
| | - Baijun Zheng
- Department of Pediatric Surgery, the Second Affiliated Hospital, Xi'an Jiaotong University, Xi'an, China
| | - Yong Liu
- Institute of Neurobiology, Environment and Genes Related to Diseases Key Laboratory of Chinese Ministry of Education, Xi'an Jiaotong University, Xi'an, China
| | - Xinlin Chen
- Institute of Neurobiology, Environment and Genes Related to Diseases Key Laboratory of Chinese Ministry of Education, Xi'an Jiaotong University, Xi'an, China
| | - Ya Gao
- Department of Pediatric Surgery, the Second Affiliated Hospital, Xi'an Jiaotong University, Xi'an, China
| | - Donghao Tian
- Department of Pediatric Surgery, the Second Affiliated Hospital, Xi'an Jiaotong University, Xi'an, China
- Institute of Neurobiology, Environment and Genes Related to Diseases Key Laboratory of Chinese Ministry of Education, Xi'an Jiaotong University, Xi'an, China
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Liu Z, Li B, Song L, Zhang H. Pillar[ n]arene-calix[ m]arene hybrid macrocyclic structures. RSC Adv 2022; 12:28185-28195. [PMID: 36320255 PMCID: PMC9528731 DOI: 10.1039/d2ra05118d] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2022] [Accepted: 09/19/2022] [Indexed: 06/16/2023] Open
Abstract
To reserve planar chirality, enhance molecular recognition, and build advanced self-assemblies, hybrid macrocyclic hosts containing rigid pillar[n]arene and flexible calix[m]arene were designed, prepared and investigated for interesting applications. This review summarizes and discusses different synthetic strategies for constructing hybrid macrocyclic structures. Pillar[n]arene dimer with rigid aromatic double bridges provided the possibility of introducing calix[m]arene cavities, where the planar chirality was reserved in the structure of pillararene. The capacity for molecular recognition was enhanced by hybrid macrocyclic cavities. Interestingly, the obtained pillar[n]arene-calix[m]arene could self-assemble into "channels" and "honeycomb" in both the solid state and solution phase as well as donate the molecular architecture as the wheel for the formation of mechanically interlocked molecules, such as rotaxane. In addition, the pillar[n]arene and calix[m]arene could also be coupled together to produce pillar[n]arene embeded 1,3-alternate and cone conformational calix[m]arene derivatives, which could catalyze the oxidative polymerization of aniline in aqueous solutions. Except for building hybrid cyclophanes by covalent bonds, weak supramolecular interactions were used to prepare pillar[n]arene-calix[m]arene analogous composites with other pillar-like pillar[n]pyridiniums and calix-like calix[m]pyrroles, exhibiting reasonable performances in enhancing molecular recognition and trapping solvent molecules.
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Affiliation(s)
- Zhaona Liu
- Medical School, Xi'an Peihua University Xi'an 710125 Shaanxi China
| | - Bing Li
- School of Chemical Engineering and Technology, Xi'an Jiaotong University Xi'an Shaanxi 710049 China
| | - Leqian Song
- School of Chemical Engineering and Technology, Xi'an Jiaotong University Xi'an Shaanxi 710049 China
| | - Huacheng Zhang
- School of Chemical Engineering and Technology, Xi'an Jiaotong University Xi'an Shaanxi 710049 China
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19
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Cheng W, Ni J, Song C, Ahsan MM, Chen X, Nie Z, Liu Y. Conical Statistical Optimal Near-Field Acoustic Holography with Combined Regularization. Sensors (Basel) 2021; 21:7150. [PMID: 34770456 PMCID: PMC8588449 DOI: 10.3390/s21217150] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/07/2021] [Revised: 10/21/2021] [Accepted: 10/22/2021] [Indexed: 11/25/2022]
Abstract
For the sound field reconstruction of large conical surfaces, current statistical optimal near-field acoustic holography (SONAH) methods have relatively poor applicability and low accuracy. To overcome this problem, conical SONAH based on cylindrical SONAH is proposed in this paper. Firstly, elementary cylindrical waves are transformed into those suitable for the radiated sound field of the conical surface through cylinder-cone coordinates transformation, which forms the matrix of characteristic elementary waves in the conical spatial domain. Secondly, the sound pressure is expressed as the superposition of those characteristic elementary waves, and the superposition coefficients are solved according to the principle of superposition of wave field. Finally, the reconstructed conical pressure is expressed as a linear superposition of the holographic conical pressure. Furthermore, to overcome ill-posed problems, a regularization method combining truncated singular value decomposition (TSVD) and Tikhonov regularization is proposed. Large singular values before the truncation point of TSVD are not processed and remaining small singular values representing high-frequency noise are modified by Tikhonov regularization. Numerical and experimental case studies are carried out to validate the effectiveness of the proposed conical SONAH and the combined regularization method, which can provide reliable evidence for noise monitoring and control of mechanical systems.
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Affiliation(s)
- Wei Cheng
- State Key Laboratory for Manufacturing Systems Engineering, Xi’an Jiaotong University, Xi’an 710049, China; (J.N.); (C.S.); (M.M.A.); (X.C.); (Z.N.); (Y.L.)
- School of Mechanical Engineering, Xi’an Jiaotong University, Xi’an 710049, China
| | - Jinglei Ni
- State Key Laboratory for Manufacturing Systems Engineering, Xi’an Jiaotong University, Xi’an 710049, China; (J.N.); (C.S.); (M.M.A.); (X.C.); (Z.N.); (Y.L.)
- School of Mechanical Engineering, Xi’an Jiaotong University, Xi’an 710049, China
| | - Chao Song
- State Key Laboratory for Manufacturing Systems Engineering, Xi’an Jiaotong University, Xi’an 710049, China; (J.N.); (C.S.); (M.M.A.); (X.C.); (Z.N.); (Y.L.)
- School of Mechanical Engineering, Xi’an Jiaotong University, Xi’an 710049, China
| | - Muhammad Mubashir Ahsan
- State Key Laboratory for Manufacturing Systems Engineering, Xi’an Jiaotong University, Xi’an 710049, China; (J.N.); (C.S.); (M.M.A.); (X.C.); (Z.N.); (Y.L.)
- School of Mechanical Engineering, Xi’an Jiaotong University, Xi’an 710049, China
| | - Xuefeng Chen
- State Key Laboratory for Manufacturing Systems Engineering, Xi’an Jiaotong University, Xi’an 710049, China; (J.N.); (C.S.); (M.M.A.); (X.C.); (Z.N.); (Y.L.)
- School of Mechanical Engineering, Xi’an Jiaotong University, Xi’an 710049, China
| | - Zelin Nie
- State Key Laboratory for Manufacturing Systems Engineering, Xi’an Jiaotong University, Xi’an 710049, China; (J.N.); (C.S.); (M.M.A.); (X.C.); (Z.N.); (Y.L.)
- School of Mechanical Engineering, Xi’an Jiaotong University, Xi’an 710049, China
| | - Yilong Liu
- State Key Laboratory for Manufacturing Systems Engineering, Xi’an Jiaotong University, Xi’an 710049, China; (J.N.); (C.S.); (M.M.A.); (X.C.); (Z.N.); (Y.L.)
- School of Mechanical Engineering, Xi’an Jiaotong University, Xi’an 710049, China
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Abstract
To obtain knowledge is not the purpose of education, but to develop one's potential ability and to obtain wisdom is. We are living in a fast changing world and knowledge is growing explosively. Therefore, what facts or information students have known in your class is not the most important thing. What really matters is how efficiently students could learn and how those knowledge they have learned can help them to deal with their own tasks in the future. This article introduces our four-dimensional comprehensive course design and the teaching activities we used to optimize and improve students' learning and developing process.
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Affiliation(s)
- Xiaoyun Lu
- School of Life Science and Technology, Xi'an Jiaotong University, Xi'an, China
| | - Yan Ding
- School of Life Science and Technology, Xi'an Jiaotong University, Xi'an, China
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21
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Qiao Y, Wang B, Zhang H, Yan Y, Niu L. Retracted Article: FOXO4 overexpression suppresses hypoxia-induced-MCF-7 cell survival and promotes apoptosis through the HIF-2α/Bnip3 signal pathway. RSC Adv 2019; 9:25912-25918. [PMID: 35530114 PMCID: PMC9070021 DOI: 10.1039/c9ra04380b] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2019] [Accepted: 08/01/2019] [Indexed: 11/21/2022] Open
Abstract
Transcriptional regulator forkhead box O (FOXO) has implications in many diverse carcinomas and often acts as a tumour suppressor. Evidence suggests that FOXO4 may play a role in cancer cell proliferation and apoptosis; however, the function and mechanism of FOXO4 on breast cancer cell growth are still unknown. FOXO4 can respond to hypoxia and in the current study, our aim is to investigate the function and molecular mechanism of FOXO4 in hypoxia-induced MCF-7 cells. We first observed that hypoxia treatment reduced FOXO4 mRNA and protein expression in MCF-7 cells. Moreover, FOXO4 overexpression reversed hypoxia-induced MCF-7 cell survival. Hypoxia treatment markedly impeded MCF-7 cell apoptosis and inhibited caspase-3 activity, whereas FOXO4 overexpression promoted apoptosis and increased caspase-3 activity in hypoxia-induced MCF-7 cells. Further studies indicated that FOXO4 overexpression inhibited hypoxia-induced HIF-2α and Bnip3 expression in MCF-7 cells; moreover, FOXO4 suppressed Bnip3 expression, which is dependent on the low level of HIF-2α. Finally, we demonstrated that Bnip3 overexpression reversed the effects of FOXO4 overexpression on cell survival and apoptosis in hypoxia-induced MCF-7 cells. In conclusion, the present study suggests that FOXO4 overexpression mediated the HIF-2α/Bnip3 signal pathway, which has implications in cell survival and apoptosis in hypoxia-induced MCF-7 cells.
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Affiliation(s)
- Yan Qiao
- Department of Breast Surgery, The First Affiliated Hospital of Xi'an Jiao Tong University No. 277 Yanta West Road Xi'an 710061 China +86-029-85324605
| | - Bin Wang
- Department of Breast Surgery, The First Affiliated Hospital of Xi'an Jiao Tong University No. 277 Yanta West Road Xi'an 710061 China +86-029-85324605
| | - Huimin Zhang
- Department of Breast Surgery, The First Affiliated Hospital of Xi'an Jiao Tong University No. 277 Yanta West Road Xi'an 710061 China +86-029-85324605
| | - Yu Yan
- Department of Breast Surgery, The First Affiliated Hospital of Xi'an Jiao Tong University No. 277 Yanta West Road Xi'an 710061 China +86-029-85324605
| | - Ligang Niu
- Department of Breast Surgery, The First Affiliated Hospital of Xi'an Jiao Tong University No. 277 Yanta West Road Xi'an 710061 China +86-029-85324605
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Dai Z, Liang T, Lee JH. Gas sensors using ordered macroporous oxide nanostructures. Nanoscale Adv 2019; 1:1626-1639. [PMID: 36134246 PMCID: PMC9417045 DOI: 10.1039/c8na00303c] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/25/2018] [Accepted: 02/02/2019] [Indexed: 05/23/2023]
Abstract
Detection and monitoring of harmful and toxic gases have gained increased interest in relation to worldwide environmental issues. Semiconducting metal oxide gas sensors have been considered promising for the facile remote detection of gases and vapors over the past decades. However, their sensing performance is still a challenge to meet the demands for practical applications where excellent sensitivity, selectivity, stability, and response/recovery rate are imperative. Therefore, sensing materials with novel architectures and fabrication processes have been pursued with a flurry of research activity. In particular, the preparation of ordered macroporous metal oxide nanostructures is regarded as an intriguing candidate wherein ordered aperture sizes in the range from 50 nm to 1.5 μm can increase the chemical diffusion rate and considerably strengthen the performance stability and repeatability. This review highlights the recent advances in the fabrication of ordered macroporous nanostructures with different dimensions and compositions, discusses the sensing behavior evolution governed by structural layouts, hierarchy, doping, and heterojunctions, as well as considering their general principles and future prospects. This would provide a clear scale for others to tune the sensing performance of porous materials in terms of specific components and structural designs.
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Affiliation(s)
- Zhengfei Dai
- State Key Laboratory for Mechanical Behavior of Materials, Xi'an Jiaotong University Xi'an Shaanxi 710049 People's Republic of China
| | - Tingting Liang
- State Key Laboratory for Mechanical Behavior of Materials, Xi'an Jiaotong University Xi'an Shaanxi 710049 People's Republic of China
| | - Jong-Heun Lee
- Department of Materials Science and Engineering, Korea University Seoul 02841 Republic of Korea
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