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106篇 您的检索式:作者名="Huiling Yang"
    题名 作者 年代 出处 被引量
1Theranostic nanoparticles with tumor-specific enzyme-triggered size reduction and drug release to perform photothermal therapy for breast cancer treatment显示文摘Although progress has been indeed made by nanomedicines, their efficacies for cancer treatment remain low, consequently leading to failures in translation to clinic. To improve the drug delivery efficiency,nanoparticles need to change size so as to fully utilize the enhanced permeability and retention(EPR) effect of solid tumor, which is the golden principle of nanoparticles used for cancer treatment. Herein, we employed cationic small-sized red emission bovine serum albumin(BSA) protected gold nanocluster(Au NC@CBSA,21.06 nm) to both load indocyanine green(ICG) and act as imaging probe to realize theranostic. Then Au NC@CBSA-ICG was fabricated with negatively charged hyaluronic acid(HA) to form Au NC@CBSAICG@HA, which was about 200 nm to easily retain at tumor site and could be degraded by tumor-specific hyaluronidase into small nanoparticles for deep tumor penetration. The HA shell also endowed Au NC@CBSA-ICG@HA with actively targeting ability and hyaluronidase-dependent drug release. Furthermore, the quenching and recovery of fluorescence revealed the interaction between ICG and carrier, which was essential for the investigation of pharmacokinetic profiles. No matter in vitro or in vivo, Au NC@CBSAICG@HA showed markedly anti-tumor effect, and could suppress 95.0% of tumor growth on mice breast cancer model. All results demonstrated Au NC@CBSA-ICG@HA was potential for breast cancer therapy.Rui Liu Chuan Hu Yuanyuan Yang Jingqing Zhang Huile Gao 2019Acta Pharmaceutica Sinica B2019,9,2:24
2Construction and Functional Analysis of a Lentiviral Expression Vector Containing a Scavenger Receptor (SR-PSOX) that Binds Uniquely Phosphatidylserine and Oxidized Lipoprotein显示文摘这研究的目的是构造包含特别地绑与的 scavenger 受体(SR-PSOX ) 的 lentiviral 表达式向量有六个 histidine 标签并且到的 phosphatidylserine 和氧化脂蛋白在动脉粥样硬化调查 SR-PSOX 的函数。我们利用有效在 vitro 或 invivo 交付目标基因进用提高的 biosafetyreplication 无能的 lentivirus 划分和非划分的哺乳动物的房间的 ViraPower lentiviral 表达式系统。钝结束的顺序用克隆反应的 reversetranscription 聚合酶链反应和方向性的 TOPO 被放大。通过一双 thecytomegalovirus 提交教材和 SR-PSOX 的反向的教材,正确克隆被聚合酶链反应识别并且定序。包装混合 andSR-PSOX-pLenti6/V5 TOPO 表示原生质标志的 ViraPower 是进 293FT 房间线 usingLipofectamine 的 co-transfected 2000。内长、外长的 SR-PSOX 以及在在不同时间的各种各样的泡沫房间模型的 - α蛋白质削尖的肿瘤坏死因素(TNF ) 的表示被 sodiumdodecyl sulfate-polyacrylamide 凝胶电泳,蛋白质印迹和间接 immunofluorescenceassay 检测。蛋白质印迹和免疫荧光分析证实α蛋白质是起来的 SR-PSOX andTNF- 的表情在泡沫房间模型调整了。我们的数据建议过去表示 ofrecom-binant 人 SR-PSOX 蛋白质能支持泡沫房间形成并且起来调整煽动性的因素 TNF- α的表示。Zhihua QUAN Huiling YANG Yongzong YANG Bin YAN Renxian CAO Gebo WEN Changhui LIU Yangyan XU 2007Acta Biochimica et Biophysica Sinica2007,39,3:16
3Flexible fiber-shaped supercapacitors based on hierarchically nanostructured composite electrodes显示文摘新奇所有固态的、同轴的、塑造纤维的不对称的 supercapacitor 被在 MnO 上包一张进行的复写纸制作了 < 潜水艇 class= “ a-plus-plus ” > 2 -modified nanoporous 金牌电线。这根精力电线展出 12 mFHenghui Xu Xianluo Hu Yongming Sun Huiling Yang Xiaoxiao Liu Yunhui Huang 2015Nano Research2015,8,4:14
4Roles of mechanosensitive channel Piezo 1/2 proteins in skeleton and other tissues显示文摘Mechanotransduction is a fundamental ability that allows living organisms to receive and respond to physical signals from both the external and internal environments.The mechanotransduction process requires a range of special proteins termed mechanotransducers to convert mechanical forces into biochemical signals in cells.The Piezo proteins are mechanically activated nonselective cation channels and the largest plasma membrane ion channels reported thus far.The regulation of two family members,Piezol and Piezo2#has been reported to have essential functions in mechanosensation and transduction in different organs and tissues.Recently,the predominant contributions of the Piezo family were reported to occur in the skeletal system,especially in bone development and mechano-stimulated bone homeostasis.Here we review current studies focused on the tissue-specific functions of Piezol and Piezo2 in various backgrounds with special highlights on their importance in regulating skeletal cell mechanotransduction.In this review,we emphasize the diverse functions of Piezol and Piezo2 and related signaling pathways in osteoblast lineage cells and chondrocytes.We also summarize our current understanding of Piezo channel structures and the key findings about PIEZO gene mutations in human diseases.Lei Qin Tailin He Sheng Chen Dazhi Yang Weihong Yi Huiling Cao Guozhi Xiao 2021Bone Research2021,9,4:14
5Non-Orthogonal Multiple Access(NOMA) for Future Downlink Radio Access of 5G显示文摘Multiple access(MA) technology is of most importance for 5G. Non-orthogonal multiple access(NOMA) utilizing power domain and advanced receiver has been considered as a promising candidate MA technology recently. In this paper, the NOMA concept is presented toward future enhancements of spectrum efficiency in lower frequency bands for downlink of 5G system. Key component technologies of NOMA are presented and discussed including multiuser transmission power allocation, scheduling algorithm, receiver design and combination of NOMA with multi-antenna technology. The performance gains of NOMA are evaluated by system-level simulations with very practical assumptions. Under multiple configurations and setups, the achievable system-level gains of NOMA are shown promising even when practical considerations were taken into account.LI Anxin LAN Yang CHEN Xiaohang JIANG Huiling 2015China Communications2015,12,S1:12
6Clinical characteristics and effectiveness of antiviral agents in hospitalized children with infectious mononucleosis in China:A multicenter retrospective study显示文摘Importance:The clinical characteristics of infectious mononucleosis(IM)in Chinese children have not been evaluated in multicenter studies,and the effectiveness of antiviral treatment are controversial.Objective:To investigate the clinical characteristics of Chinese children with IM and current status of antiviral therapy for affected patients.Methods:Hospitalized patients with IM were enrolled between 2018 and 2020 in five children’s hospitals in China.The clinical characteristics were compared among four age groups:<3 years,3-<6 years,6-<10 years,and≥10 years.The clinical characteristics of IM and effectiveness of antiviral therapy were compared among patients receiving acyclovir(ACV),ganciclovir(GCV),and no antiviral therapy(i.e.,non-antiviral group).Results:In total,499 patients were analyzed;most patients were 3-<6 years of age.The most common symptoms and signs included fever(100%),lymphadenopathy(98.6%),pharyngitis(86.4%),eyelid edema(76.8%),and snoring(72.9%).There were significant differences in rash,hepatomegaly,and liver dysfunction among the four age groups.Patients aged<3 years had a lower incidence of liver dysfunction and a higher incidence of rash.Among the 499 patients,50.1%were treated with GCV,26.3%were treated with ACV,and 23.6%received no antiviral therapy.Compared with the non-antiviral group,patients in the ACV and GCV groups had longer durations of fever(P<0.001).There were no significant differences in the incidences of complications among the three treatment groups.Interpretation:The incidence of IM in Chinese children peaked at 3-<6 years of age.Clinical features of IM varied according to age.Patients receiving antiviral therapy exhibited more serious clinical manifestations than did patients without antiviral therapy.The effectiveness of antiviral therapy for IM requires further analysis.Huili Hu Huiling Deng Jing Bi Yi Xu Shuangjie Li Yue Xie Xinrong Sun Dongmeng Wang Xufang Li Wenxian Ouyang Bing Hu Yufeng Zhang He Tang Chunxiao Fang Hui Zhang Lingyun Guo Chen Wang Tianyi Wang Fengxia Yang Tao Jiang Zhengde Xie Gang Liu 2021Pediatric Investigation2021,5,3:12
7Effectiveness and safety of moxibustion in treatment of lumbar disc herniation: a systematic review and Meta-analysis显示文摘OBJECTIVE: To evaluate the effectiveness and safety of moxibustion therapy in the treatment of lumbar disc herniation (LDH). METHODS: Four Chinese databases and three English databases were searched from their inception to April 2018.Randomized controlled trials (RCTs) were included if moxibustion was used as the sole treatment or as a part of combination therapy with other treatments in patients with LDH. Two reviewers independently extracted the data and assessed the methodological quality using the Cochrane criteria for the risk of bias. The Meta-analysis was performed using Review Manager 5.3 software. RESULTS: In total, 16 RCTs including 1186 patients with LDH were analyzed. The Meta-analysis showed favorable effects of moxibustion in combination with massage therapy on the visual analog scale score compared with massage therapy alone [mean difference (MD)=? 1.32, 95% confidence interval (CI)(? 2.12,? 0.51), P = 0.001]. The subgroup Meta-analysis failed to show favorable effects of electro-acupuncture plus moxibustion on the efficacy rate compared with electro-acupuncture alone [relative risk (RR)= 1.06, 95% CI (0.98, 1.14), P = 0.15]. However, acupuncture or massage therapy plus moxibustion improved the efficacy rates compared with acupuncture or massage therapy alone [RR = 1.33, 95% CI (1.18, 1.49), P < 0.000 01][χ^2 = 2.76, P = 0.25, I2 = 27%],[RR = 1.15, 95% CI (1.06, 1.25), P = 0.001][χ^2 = 0.00, P = 0.95, I2 = 0%]. With respect to the Japanese Orthopaedic Association (JOA) scores, acupuncture or massage therapy in addition to moxibustion produced results different from those of acupuncture or massage therapy alone [MD = 5.58, 95% CI (4.15, 7.00), P < 0.000 01][χ^2 = 0.58, P = 0.45, I2 = 0%],[MD = 3.61, 95% CI (3.01, 4.21), P < 0.000 01]. There were no significant differences in the JOA score for subjective symptoms, objective symptoms, daily living ability, and other parameters. In six RCTs, no adverse reactions occurred during moxibustion. CONCLUSION: Whether moxibustion is an effective intervention for LDH is unclear because of the small sample size of qualified RCTs and the high risk of bias. More high-quality RCTs that overcome the methodological shortcomings of the existing evidence are needed.Wang Yang Zhang Huiling Xia Liping Sun Zhiling Xu Xiao Du Shizheng 2019Journal of Traditional Chinese Medicine2019,39,5:11
8Self-Powered Implantable Skin-Like Glucometer for Real-Time Detection of Blood Glucose Level In Vivo显示文摘Implantable bioelectronics for analyzing physiological biomarkers has recently been recognized as a promising technique in medical treatment or diagnostics. In this study, we developed a self-powered implantable skinlike glucometer for real-time detection of blood glucose level in vivo. Based on the piezo-enzymatic-reaction coupling effect of GOx@ZnO nanowire, the device under an applied deformation can actively output piezoelectric signal containing the glucose-detecting information. No external electricity power source or battery is needed for this device, and the outputting piezoelectric voltage acts as both the biosensing signal and electricity power. A practical application of the skin-like glucometer implanted in mouse body for detecting blood glucose level has been simply demonstrated. These results provide a new technique path for diabetes prophylaxis and treatment.Wanglinhan Zhang Linlin Zhang Huiling Gao Wenyan Yang Shuai Wang Lili Xing Xinyu Xue 2018Nano-Micro Letters2018,10,2:9
9A LysM Receptor Heteromer Mediates Perception of Arbuscular Mycorrhizal Symbiotic Signal in Rice显示文摘Symbiotic microorganisms improve nutrient uptake by plants.To initiate mutualistic symbiosis with arbus-cular mycorrhizal(AM)fungi,plants perceive Myc factors,including lipochitooligosaccharides(LCOs)and short-chain chitooligosaccharides(CO4/CO5),secreted by AM fungi.However,the molecular mechanism of Myc factor perception remains elusive.In this study,we identified a heteromer of LysM receptor-like kinases consisting of OsMYR1/OsLYK2 and OsCERK1 that mediates the perception of AM fungi in rice.CO4 directly binds to OsMYR1,promoting the dimerization and phosphorylation of this receptor complex.Compared with control plants,Osmyr1 and Oscerk1 mutant rice plants are less sensitive to Myc factors and show decreased AM colonization.We engineered transgenic rice by expressing chimeric receptors that respectively replaced the ectodomains of OsMYR1 and OsCERK1 with those from the homologous Nod factor receptors MtNFP and MtL YK3 of Medicago truncatula.Transgenic plants displayed increased cal-cium oscillations in response to Nod factors compared with control rice.Our study provides significant mechanistic insights into AM symbiotic signal perception in rice.Expression of chimeric Nod/Myc recep-tors achieves a potentially important step toward generating cereals that host nitrogen-fixing bacteria.Jiangman He Chi Zhang Huiling Dai Huan Liu Xiaowei Zhang Jun Yang Xi Chen Yayun Zhu Dapeng Wang Xiaofeng Qi Weichao Li Zhihui Wang Guoyong An Nan YU Zuhua He Yong-Fei Wang Youli Xiao Peng Zhang Ertao Wang 2019Molecular Plant2019,12,12:9
10Small Interfering RNA-mediated Caveolin-1 Knockout on Plasminogen Activator Inhibitor-1 Expression in Insulin-stimulated Human Vascular Endothelial Cells显示文摘把人的脉管的 endothelial 房间(ECV304 ) 用作目标,我们学习了 caveolin (CAV ) 的效果在 plasminogen 的刺激胰岛素的表示期间的 -1 禁止者(白族)-1。代表 RNAi CAV-1 基因的适当搁浅单人赛的 oligonucleotides 被 Ambion 软件分析。在退火产生双 stranded oligonucleotides (dsoligo ) 以后,它被克隆进由 T4 DNA 连接酶包含 RNA 聚合酶 III 表示元素的 pENTR/U6 入口向量。从 pENTR/U6 入口转移的短发卡(shRNA ) 序列与 LR 再结合反应被克隆进 pLenti6/BLOCK-iT-DEST 向量。由定序的 Afteridentification,我们成功地用网关技术构造了 CAV-1 RNAi lentiviral 表达式系统。Silencing 效率是由即时 reversetranscription 聚合酶链反应,免疫荧光染色并且西方的弄污的 assayed。ECV304cells 在包含胰岛素的不同集中的媒介是有教养的(1x10 ^( 有 CAV-1 基因 silenced 的 -9)to1x10^(-7) M ) 。表示水平和潜水艇 PAI-1 和 CAV-1 的细胞的本地化用反向的抄写聚合酶链反应,免疫荧光染色和蛋白质印迹试金被比较。结果证明有势力抑制 ofCAV-1 表示能到达 85% ,并且它对 CAV-1-derived shRNA,不是导出 theS100A13 的 shRNA 特定。在蛋白质确实在房间膜下面积累了的在与生理的胰岛素,而是 PAI-1 孵化的 RNAi^+andRNAi^- ECV304 房间之间的 PAI-1 表示没有戏剧的差别。当胰岛素的集中增加了, PAI-1 的表示是起来调整的,而 CAV-1 的表示稀释了。而且, PAI-1 清楚地在 CAV-1knockdown 以后扩充了。这些结果显示 hyperinsulinism 能由 inhibitingCAV-1 支持 PAI-1 表示,并且稳定或在 endothelial 房间的起来调整的 CAV-1 表示可能在糖尿病减少大容器和毛状的容器的复杂并发症。Huiling YANG Shuya HE Zhihua QUAN Weixia PENG Bin YAN Jianghua LIU Fang WEN Renxian CAO Yangyan XU Gebo WEN Weixin HU 2007Acta Biochimica et Biophysica Sinica2007,39,3:7
11The research on the quantum tunneling characteristics and the radiation spectrum of the stationary axisymmetric black hole显示文摘At the event horizon and the cosmological horizon of the stationary axisymmetric Kerr-Newman black hole in the de Sitter space-time background, the tunneling rate of the charged particles is relevant with Bekenstein-Hawking entropy and the real radiation spectrum is not strictly pure thermal, but consistent with the underlying unitary theory in quantum mechanics. This is a feasible interpretation for the paradox of the black hole information loss. Taking the self-gravitation action, energy conservation, angular momentum conservation and charge conservation into account, the derived radiation spectrum is a correct amendment to the Hawking pure thermal spectrum.YANG ShuZheng LI HuiLing JIANG QingQuan LIU MenQuan 2007Science China(Physics,Mechanics & Astronomy)2007,50,2:7
12Microelectronics-embedded channel bridging and signal regeneration of injured spinal cords显示文摘Due to the dificulty in spinal cord regeneration with biological methods,the microelectronic neural bridge,a new concept based on microelectronic technology,is presented.The microelectronic system has been realized in the forms of hybrid and integrated circuits.The integrated circuits forneural signal detection,stimulation,and regeneration are realized in a CMOS process.In animal experiments with 100 toads,48 rats,and 3 rabbits,nerve signals have been successfully detected from spinal cords and sciatic nerves,and functional electrical stimulation has been carried out for spinal cords and sciatic nerves.When the microelectronic system is bridged between the controlling and stimulated nerve,the relevant motion of legs and nerve signal waveforms,which are stimulated by the evoked or spontaneous nerve signal through such a system,have been observed.Therefore,the feasibility of the presented method was demonstrated.Zhigong Wang Xiaosong Gu Xiaoying Lǔ Zhenglin Jiang Wenyuan Li Guangming Lǔ Yufeng Wang Xiaoyan Shen Xintai Zhao Huiling Wang Zhenyu Zhang Hongmei Shen Yang Wu Weixing Shen Jingyang Zhang Dong Chen Xiaoyi Mao Huaxiang Shen 2009Progress in Natural Science:Materials International2009,19,10:5
13宁夏年降水和季节降水的创新趋势分析显示文摘采用创新趋势分析(ITA)方法对1961年至2018年宁夏不同强度降水的时空变化进行研究。结果表明,区域年降水量增加主要是弱降水增加,而区域年降水量减少主要是强降水减少;极端降水的变化趋势明显。不同类型极端降水的贡献随季节变化。春季区域降水增加主要是强降水增加,区域降水减少主要是弱降水减少。夏季和秋季区域降水增加主要是弱降水增加,而区域降水减少是由强降水减少引起。该研究结果为水资源规划和应对干旱和洪涝灾害提供了支持。YANG Huiling XIAO Hui GUO Chunwei SUN Yue GAO Ruina 2020Atmospheric and Oceanic Science Letters2020,13,4:4
14A nanocleaner specifically penetrates the blood-brain barrier at lesions to clean toxic proteins and regulate inflammation in Alzheimer's disease显示文摘Insurmountable blood-brain barrier(BBB) and complex pathological features are the key factors affecting the treatment of Alzheimer's disease(AD).Poor accumulation of drugs in lesion sites and undesired effectiveness of simply reducing Aβ deposition or TAU protein need to be resolved urgently.Herein,a nanocleaner is designed with a rapamycin-loaded ROS-responsive PLGA core and surface modification with KLVFF peptide and acid-cleavable DAG peptide [R@(ox-PLGA)-KcD].DAG can enhance the targeting and internalization effect of nanocleaner towards neurovascular unit endothelial cells in AD lesions,and subsequently detach from nanocleaner in response to acidic microenvironment of endosomes to promote the transcytosis of nanocleaner from endothelial cells into brain parenchyma.Then exposed KLVFF can capture and carry Aβ to microglia,attenuating Aβ-induced neurotoxicity.Strikingly,rapamycin,an autophagy promoter,is rapidly liberated from nanocleaner in the high ROS level of lesions to improve Aβ degradation and normalize inflammatory condition.This design altogether accelerates Aβ degradation and alleviates oxidative stress and excessive inflammatory response.Collectively,our finding offers a strategy to target the AD lesions precisely and multi-pronged therapies for clearing the toxic proteins and modulating lesion microenvironment,to achieve efficient AD therapy.Ting Lei Zhihang Yang Xue Xia Yuxiu Chen Xiaotong Yang Rou Xie Fan Tong Xiaolin Wang Huile Gao 2021Acta Pharmaceutica Sinica B2021,11,12:4
15Intelligent lesion blood–brain barrier targeting nano-missiles for Alzheimer's disease treatment by anti-neuroinflammation and neuroprotection显示文摘The treatment of Alzheimer's disease(AD)is one of the most difficult challenges in neurodegenerative diseases due to the insufficient blood‒brain barrier(BBB)permeability and unsatisfactory intra-brain distribution of drugs.Therefore,we established an ibuprofen and FK506 encapsulated drug co-delivery system(Ibu&FK@RNPs),which can target the receptor of advanced glycation endproducts(RAGE)and response to the high level of reactive oxygen species(ROS)in AD.RAGE is highly and specifically expressed on the lesion neurovascular unit of AD,this property helps to improve targeting specificity of the system and reduce unselective distribution in normal brain.Meanwhile,these two drugs can be specifically released in astrocytes of AD lesion in response to high levels of ROS.As a result,the cognition of AD mice was significantly improved and the quantity of Aβplaques was decreased.Neurotoxicity was also alleviated with structural regeneration and functional recovery of neurons.Besides,the neuroinflammation dominated by NF-κB pathway was significantly inhibited with decreased NF-κB and IL-1βin the brain.Overall,Ibu&FK@RNPs can efficiently and successively target diseased BBB and astrocytes in AD lesion.Thus it significantly enhances intracephalic accumulation of drugs and efficiently treats AD by anti-neuroinflammation and neuroprotection.Xueqin He Xiaorong Wang Lianyi Yang Zhihang Yang Wenqi Yu Yazhen Wang Rui Liu Meiwan Chen Huile Gao 2022Acta Pharmaceutica Sinica B2022,12,4:3
16Flexible organic thin-film transistors based on poly(3-hexylthiophene) films for nitrogen dioxide detection显示文摘Flexible nitrogen dioxide(NO_2) gas sensors based on organic thin-film transistors(OTFTs) were developed in this work, in which conductive indium tin oxide(ITO) coated polyethylene naphthalene-2,6-dicarboxylate(PEN) was designed for the flexible substrates, and poly methyl methacrylate(PMMA) and poly(3-hexylthiophene)(P3HT) was spin-coated as the gate dielectric layer and spray-deposited as the active layer, respectively. The effects of PMMA concentrations and P3HT solution volume on performances of flexible OTFTs were systematically investigated. The results showed that the optimized flexible OTFT exhibited high field-effect mobility(9.51×10^(–3) cm^2/(V s) at a gate bias of –50 V) and excellent response characteristics,including high sensitivity(up to 0.169 ppm^(–1)), good repeatability and selectivity. The flexibility of the developed OTFT sensor was also investigated, and the results showed that the electrical and gas-sensing properties were affected by the bending cycles,thus further work should be done for improving the flexibility of the sensor. This work provides an effective approach in developing high performance flexible OTFT NO_2 gas sensor.YANG Jing XIE GuangZhong SU YuanJie ZHANG QiuPing DU HongFei TAI HuiLing DU XiaoSong JIANG YaDong 2018Science China(Technological Sciences)2018,61,11:3
17A novel sprayable thermosensitive hydrogel coupled with zinc modified metformin promotes the healing of skin wound显示文摘A novel sprayable adhesive is established(ZnMet-PF127)by the combination of a thermosensitive hydrogel(Pluronic F127,PF127)and a coordination complex of zinc and metformin(ZnMet).Here we demonstrate that ZnMet-PF127 potently promotes the healing of traumatic skin defect and burn skin injury by promoting cell proliferation,angiogenesis,collagen formation.Furthermore,we find that ZnMet could inhibit reactive oxygen species(ROS)production through activation of autophagy,thereby protecting cell from oxidative stress induced damage and promoting healing of skin wound.ZnMet complex exerts better effects on promoting skin wound healing than ZnCl2 or metformin alone.ZnMet complex also displays excellent antibacterial activity against Staphylococcus aureus or Escherichia coli,which could reduce the incidence of skin wound infections.Collectively,we demonstrate that sprayable PF127 could be used as a new drug delivery system for treatment of skin injury.The advantages of this sprayable system are obvious:(1)It is convenient to use;(2)The hydrogel can cover irregular skin defect sites evenly in a liquid state.In combination with this system,we establish a novel sprayable adhesive(ZnMet-PF127)and demonstrate that it is a potential clinical treatment for traumatic skin defect and burn skin injury.Zhengwei Liu Wanze Tang Jiayi Liu Yingying Han Qinnan Yan Yuechao Dong Xiaomei Liu Dazhi Yang Guixing Ma Huiling Cao 2023Bioactive Materials2023,,2:3
18Effect of aging treatment on microstructure and corrosion behavior of a Fe-18Cr-15Mn-0.66N stainless steel显示文摘The effect of aging treatment on the microstructure and corrosion behavior of a Fe-18Cr-15Mn-0.66N high-nitrogen stainless steel(HNSS) in 3.5 wt.% Na Cl solution was investigated using a series of electrochemical tests, scanning electronic microscopy(SEM), X-ray diffraction(XRD) and X-ray photoelectron spectroscopy(XPS). The results showed that the aging treatment led to the precipitation of CrN particles along the grain boundaries and their morphologies changed from dispersive particles to continuous network as the aging time increased up to 60 min. Aging time had minor effects on the corrosion potential and corrosion current density, but resulted in the sharp decrease in the pitting corrosion potential.The passive film behaved as a n-type semiconductor, and the donor density of the passive film increased with the aging time. Meanwhile, the fraction of stable oxide(CrO) in the passive film decreased with the aging time. It demonstrates that the aging treatment deteriorated the protectiveness of the passive film, hence weakened the corrosion resistance of HNSS.Yanxin Qiao Xinyi Wang Lanlan Yang Xiaojing Wang Jian Chen Zhengbin Wang Huiling Zhou Jiasheng Zou Fuhui Wang 2022Journal of Materials Science & Technology2022,,12:3
19Reactive MnO_(2) template-assisted synthesis of double-shelled PPy hollow nanotubes to boost microwave absorption显示文摘Microwave absorbing materials(MAMs)with wide effective absorption bandwidth(EAB)and low filling ratio are highly desirable for practical applications.Rational design in components and structures is one of the effective strategies to achieve MAMs with high performance.Herein,double-shelled hollow(DSH)polypyrrole(PPy)nanotubes were synthesized with hydrochloric acid(HCl)and sodium pstyrene sulfonate(SS)co-doping polymerization process using manganese dioxide(MnO_(2))nanorods as a self-sacrifice template.With the increase of HCl concentration,the 1D MnO_(2) core diminishes gradually to form the MnO_(2)@PPy coaxial nanostructures and finally the DSH PPy nanotube,which tunes the microwave absorption performance.Importantly,the DSH PPy nanotubes exhibit excellent microwave absorption of an optimal reflection loss of–50.4 dB and a wide EAB of 7.7 GHz with a low filling ratio of 5 wt%in a paraffin wax matrix.The excellent microwave absorption is believed to be mainly attributed to the enhanced synergistic effects of interfacial polarization and conduction loss arising from the unique DSH structure and the co-doping polymerization.Huiling Gu Ji Huang Na Li Hua Yang Gang Chen Chengjun Dong Chunhong Gong Hongtao Guan 2023Journal of Materials Science & Technology2023,,15:3
20Co-delivery of photosensitizer and diclofenac through sequentially responsive bilirubin nanocarriers for combating hypoxic tumors显示文摘Considering that photodynamic therapy(PDT)-induced oxygen consumption and microvascular damage could exacerbate hypoxia to drive more glycolysis and angiogenesis, a novel approach to potentiate PDT and overcome the resistances of hypoxia is avidly needed. Herein, morpholine-modified PEGylated bilirubin was proposed to co-deliver chlorin e6, a photosensitizer, and diclofenac(Dc). In acidic milieu, the presence of morpholine could enable the nanocarriers to selectively accumulate in tumor cells, while PDT-generated reactive oxidative species(ROS) resulted in the collapse of bilirubin nanoparticles and rapid release of Dc. Combining with Dc showed a higher rate of apoptosis over PDT alone and simultaneously triggered a domino effect, including blocking the activity and expression of lactate dehydrogenase A(LDHA), interfering with lactate secretion, suppressing the activation of various angiogenic factors and thus obviating hypoxia-induced resistance-glycolysis and angiogenesis. In addition, inhibition of hypoxia-inducible factor-1a(HIF-1a) by Dc alleviated hypoxia-induced resistance. This study offered a sequentially responsive platform to achieve sufficient tumor enrichment, on-demand drug release and superior anti-tumor outcomes in vitro and in vivo.Yang Zhou Fan Tong Weilong Gu Siqin He Xiaotong Yang Jiamei Li Yue-Dong Gao Huile Gao 2022Acta Pharmaceutica Sinica B2022,12,3:2
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