Publications by authors named "Zhiquan Chen"

Article Synopsis
  • The study explores the mechanical principles of external fixation and resistance training for wrist rehabilitation after a distal radius fracture (DRF).
  • It proposes two wearable exoskeleton devices: an adjustable fixation device (AFD) for early-stage protection and mobilization, and a resistance training device (RTD) for later-stage muscle recovery.
  • Experimental tests indicate that the AFD effectively monitors joint angles and the RTD enhances muscle strength, supporting active rehabilitation for DRF patients.
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  • Bismuth telluride materials are popular for thermoelectric applications, but there's a need for better performance, especially at higher temperatures due to a bipolar effect caused by their narrow band gap.
  • This study explores alloying commercial BiSbTe with AgSbTe using advanced techniques, which effectively lowers thermal conductivity and increases electrical conductivity by raising hole carrier concentration.
  • The optimal alloy composition (0.15 wt % AgSbTe) achieved a thermoelectric performance improvement of 20.5% at 393 K and 27.6% between 303 K and 483 K compared to commercial samples.
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Small cell lung cancer (SCLC) is a recalcitrant malignancy with dismal prognosis due to rapid relapse after an initial treatment response. More effective treatments for SCLC are desperately needed. Our previous studies showed that cell migration-inducing hyaluronan binding protein (CEMIP) functionally promotes SCLC cell proliferation and metastasis.

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The majority of isolates possess the extended-spectrum beta-lactamase (ESBL) enzymes. Therefore, can easily develop drug resistance. How to effectively overcome the problem of drug resistance in is still a research hotspot.

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In this study, the impact of codoping Mg and Ti on the thermoelectric performance of AgSbTe materials was investigated. Through a two-step synthesis process involving slow cooling and spark plasma sintering, AgSbMgTiTe samples were prepared. The introduction of Mg and Ti dopants effectively suppressed the formation of the undesirable AgTe phase.

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  • Janus Kinase 3 (JAK3) plays a key role in immune cell signaling and is a potential treatment target for rheumatoid arthritis (RA).
  • Researchers developed new JAK3 inhibitors, J1b and J1f, with improved potency, and found that compound 9a showed the strongest effectiveness and low toxicity in tests.
  • Compound 9a selectively inhibits JAK3, minimizing effects on other kinases, and demonstrated the ability to reduce inflammation and lymphocyte proliferation, indicating its promise for RA treatment.
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Lung adenocarcinoma (LUAD) is a highly heterogeneous disease that threaten human life with serious incidence and high mortality. High heterogeneity of tumor microenvironment (TME) was reported in multiple studies. However, the factor of controlling the tumor migration progression between eary and late-stage LUAD is still not fully understood.

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Thermoelectric materials can realize direct and mutual conversion between electricity and heat. However, developing a strategy to improve high thermoelectric performance is challenging because of strongly entangled electrical and thermal transport properties. We demonstrate a case in which both pseudo-nanostructures of vacancy clusters and dynamic charge-carrier regulation of trapped-hole release have been achieved in p-type lead telluride-based materials, enabling the simultaneous regulations of phonon and charge carrier transports.

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Selective inhibition of Janus kinase 3 (JAK3) is a promising strategy for the treatment of autoimmune diseases. Based on the discovery of a hydrophobic pocket unutilized between the lead compound RB1 and the JAK3 protein, a series of covalent JAK3 inhibitors were prepared by introducing various aromatic fragments to RB1. Among them, J1b (JAK3 IC = 7.

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Understanding the impact of environmental factors on antibiotic sensitivity and the emergence of antibiotic resistance in microorganism is crucial for antibiotics management and environmental risk assessment. Natural materials, like mineral particles, are prevalent in aquatic and terrestrial ecosystems. However, it remains unclear how microorganism adapt to the physical stress of mineral particles and whether this adaptation influences antibiotic sensitivity and the evolution of antibiotic resistance.

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The performances of solid-state polymer electrolytes are urgently required to be further improved for high energy density lithium metal batteries. Herein, a highly reinforced ultrathin composite polymer electrolyte (PLPP) is successfully fabricated in a large scale by densely filling the well-dispersed mixture of polyethylene oxide (PEO), Li-salt (LiTFSI) and a polymer of intrinsic microporosity (PIM-1) into porous poly(tetrafluoroethylene) (PTFE) matrix. Based on the macro-plus-micro synergistic enhancement of the PTFE with excellent mechanical properties and the soluble PIM-1 with suitable functional groups, the PLPP electrolyte exhibits excellent properties including mechanical stress, thermal stability, lithium-ion transference number, voltage window and ionic conductivity, which are all superior to the typical PEO/LiTFSI electrolytes.

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Manganese dioxide (MnO) has been recognized as one of the natural systems' most active mineral oxidants. However, when it comes to catalytic oxidation of antibiotic applications, pure MnO falls short in delivering satisfactory performance. Hence, a set of Fe-doped porous MnO (0.

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Different from three-dimensional bulk compounds, two-dimensional monolayer compounds exhibit much better thermoelectric performance on account of the quantum confinement and interface effect. Here, we present a systematic study on the electronic and thermal transport properties of bulk and monolayer BiSiX (X = Se, Te) through theoretical calculations using density functional theory based on first-principles and Boltzmann transport theory. Monolayer BiSiX are chemically, mechanically and thermodynamically stable semiconductors with suitable band gaps, and they have lower lattice thermal conductivity () in the / direction than their bulk counterparts.

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As a liquid-like material, CuAgSe has high carrier mobility and ultralow lattice thermal conductivity. It undergoes an n-p conduction-type transition during β- to α-phase transition with increasing temperature. Moreover, optimization of the thermoelectric performance of CuAgSe is rather difficult, owing to the two-carrier conduction in this material.

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Synergetic optimization of the electrical and thermal transport performance of GeTe has been achieved through Sb doping in this work, resulting in a high thermoelectric figure of merit of 2.2 at 723 K. Positron annihilation measurements provided clear evidence that Sb doping in GeTe can effectively suppress the Ge vacancies, and the decrease of vacancy concentration coincides well with the change of hole carrier concentration after Sb doping.

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Low thermal conductivity is crucial for obtaining a promising thermoelectric (TE) performance in semiconductors. In this work, the TE properties of CuTiS and CuTiSe were theoretically investigated by carrying out first-principles calculations and solving Boltzmann transport equations. The calculated results reveal a lower sound velocity in CuTiSe compared to that in CuTiS, which is due to the weaker chemical bonds in the crystal orbital Hamilton population (COHP) and also the larger atomic mass in CuTiSe.

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() O157:H7 is a major foodborne and waterborne pathogen that can threaten human health. Due to its high toxicity at low concentrations, it is crucial to establish a time-saving and highly sensitive in situ detection method. Herein, we developed a rapid, ultrasensitive, and visualized method for detecting O157:H7 based on a combination of Recombinase-Aided Amplification (RAA) and CRISPR/Cas12a technology.

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Small-cell lung cancer (SCLC) is a highly metastatic and recalcitrant malignancy. Metastasis is the major cause of death in patients with SCLC but its mechanism remains poorly understood. An imbalance of hyaluronan catabolism in the extracellular matrix accelerates malignant progression in solid cancers due to the accumulation of low-molecular-weight HA.

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Small cell lung cancer (SCLC) is the most malignant lung cancer with rapid growth and early metastasis, but still lacks effective targeted therapies to improve the prognosis. Here, we demonstrated that a novel oncogenic protein, cell migration inducing hyaluronic binding protein (CEMIP), was robustly overexpressed in SCLC tissues than that in noncancerous tissues and high expression of CEMIP predicted poor outcomes in clinical specimens and in large sample size cohorts from public databases (GEPIA 2 and CPTAC). Liquid chromatography mass spectrometry (LC-MS) and in vitro/in vivo functional assays indicated that CEMIP contributed to the proliferation by increasing glutamine consumption and their metabolites (glutamate and glutathione) levels in SCLC cells.

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Novel biocompatible palladium nanoparticles (Pd-NPs) have been prepared by microorganisms via Y-4. It was demonstrated that ultrasonication treatment of biologically reduced Pd-NPs impart a much higher absorption in NIR regions and a better photothermal conversion efficiency to the material. The as-prepared material showed excellent biocompatibility and antibacterial activity under NIR irradiation.

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Renal oxidative stress (OSS) is the leading cause of diabetic nephropathy (DN). The silent information regulator 1/forkhead boxo3a (Sirt1/Foxo3a) pathway plays an essential role in regulating the antioxidant enzyme system. In this study, we aimed to investigate the mechanism of connexin32 (Cx32) on the antioxidant enzyme system in DN.

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Enhanced light-matter interaction of a local field is of prime importance in optics as it can improve the performance of nanophotonic devices. Such enhancement can be achieved by utilizing the optical bound states in the continuum (BICs). In this study, a dielectric metasurface is proposed that could enhance the light-matter interactions in graphene.

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KIAA1199 has been considered a key regulator of carcinogenesis. However, the relationship between KIAA1199 and immune infiltrates, as well as its prognostic value in lung adenocarcinoma (LUAD) remains unclear. The expression of KIAA1199 and its influence on tumor prognosis were analyzed using a series of databases, comprising TIMER, GEPIA, UALCAN, LCE, Prognoscan and Kaplan-Meier Plotter.

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Background: As the increasing mortality and incidence of lung cancer (LC), there is an urgent need to discover novel treatment agent. In this study, we aimed to investigate the anti-LC effects of nitidine chloride (NC), a small molecular compound extracted from Chinese herbal medicine, while detailing its underlying mechanisms.

Methods: Cell viability was detected by MTT assays and five cell death inhibitors, including ferrostatin-1 (Fer-1), Z-VAD-FMK, necrostatin-1 (Nec-1), disulfiram (DSF) and IM-54 were used to explore the type of cell death induced by NC.

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