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Superwetting Ag/α-Fe_(2)O_(3) anchored mesh with enhanced photocatalytic and antibacterial activities for efficient water purification 被引量:1
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作者 Jiakai Li Changpeng Lv +5 位作者 Jiajia Song Xiaoling Zhang Xizhen Huang Yingzhuo Ma Haijie Cao Na Liu 《Green Energy & Environment》 SCIE EI CAS CSCD 2024年第1期89-103,共15页
Superwetting materials have drawn unprecedented attention in the treatment of oily wastewater due to their preferable anti-fouling property and selective oil/water separation.However,it is still a challenge to fabrica... Superwetting materials have drawn unprecedented attention in the treatment of oily wastewater due to their preferable anti-fouling property and selective oil/water separation.However,it is still a challenge to fabricate multifunctional and environmentally friendly materials,which can be stably applied to purify the actual complicated wastewater.Here,a Ag/Ag/α-Fe_(2)O_(3) heterostructure anchored copper mesh was intentionally synthesized using a facile two-step hydrothermal method.The resultant mesh with superhydrophilicity and underwater superoleophobicity was capable of separating various oil/water mixtures with superior separation efficiency and high permeationflux driven by gravity.Benefiting from the joint effects of the smaller band gap of Ag/α-Fe_(2)O_(3) heterojunction,inherent antibacterial capacity of Ag/α-Fe_(2)O_(3) and Ag nanoparticles,favorable conductive substrate,as well as the hierarchical structure with superwettability,such mesh presented remarkably enhanced degradation capability toward organic dyes under visible light irradiation and antibacterial activity against both Escherichia coli(E.coli)and Staphylococcus aureus(S.aureus)compared with the pure Ag/α-Fe_(2)O_(3) coated mesh.Impressively,the mesh exhibited bifunctional water purification performance,in which organic dyes were eliminated simultaneously from water during oil/water separation in onefiltration process.More importantly,this mesh behaved exceptional chemical resistance,mechanical stability and long-term reusability.Therefore,this material with multifunctional integration may hold promising potential for steady water purification in practice. 展开更多
关键词 Superwetting Ag/α-Fe_(2)O_(3)heterostructure enhanced photocatalytic and antibacterial activities Water purification Long-term reusability
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Identifying the enhancement mechanism of Al/MoO_(3) reactive multilayered films on the ignition ability of semiconductor bridge using a one-dimensional gas-solid two-phase flow model
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作者 Jianbing Xu Yuxuan Zhou +3 位作者 Yun Shen Yueting Wang Yinghua Ye Ruiqi Shen 《Defence Technology(防务技术)》 SCIE EI CAS CSCD 2024年第3期168-179,共12页
Energetic Semiconductor bridge(ESCB)based on reactive multilayered films(RMFs)has a promising application in the miniature and intelligence of initiator and pyrotechnics device.Understanding the ignition enhancement m... Energetic Semiconductor bridge(ESCB)based on reactive multilayered films(RMFs)has a promising application in the miniature and intelligence of initiator and pyrotechnics device.Understanding the ignition enhancement mechanism of RMFs on semiconductor bridge(SCB)during the ignition process is crucial for the engineering and practical application of advanced initiator and pyrotechnics devices.In this study,a one-dimensional(1D)gas-solid two-phase flow ignition model was established to study the ignition process of ESCB to charge particles based on the reactivity of Al/MoO_(3) RMFs.In order to fully consider the coupled exothermic between the RMFs and the SCB plasma during the ignition process,the heat release of chemical reaction in RMFs was used as an internal heat source in this model.It is found that the exothermal reaction in RMFs improved the ignition performance of SCB.In the process of plasma rapid condensation with heat release,the product of RMFs enhanced the heat transfer process between the gas phase and the solid charge particle,which accelerated the expansion of hot plasma,and heated the solid charge particle as well as gas phase region with low temperature.In addition,it made up for pressure loss in the gas phase.During the plasma dissipation process,the exothermal chemical reaction in RMFs acted as the main heating source to heat the charge particle,making the surface temperature of the charge particle,gas pressure,and gas temperature rise continuously.This result may yield significant advantages in providing a universal ignition model for miniaturized ignition devices. 展开更多
关键词 Ignition enhancement mechanism 1D gas-solid two-phase flow Al/MoO_(3)reactive multilayered films Semiconductor bridge Miniaturized ignition device
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泄浊养血法联合重组人促红素注射液治疗肾虚湿浊型慢性肾脏病3~5期肾性贫血患者的临床观察 被引量:1
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作者 张婧 杨思齐 +2 位作者 韩玉 赵晰 王耀光 《天津中医药》 CAS 2024年第3期281-286,共6页
[目的]观察泄浊养血法联合重组人促红素注射液对慢性肾脏病(CKD)3~5期肾性贫血患者贫血改善及残余肾功能的干预作用。[方法]选择2020年10月—2021年10月就诊于天津中医药大学第一附属医院的88例CKD 3~5期肾性贫血患者,根据随机数字表法... [目的]观察泄浊养血法联合重组人促红素注射液对慢性肾脏病(CKD)3~5期肾性贫血患者贫血改善及残余肾功能的干预作用。[方法]选择2020年10月—2021年10月就诊于天津中医药大学第一附属医院的88例CKD 3~5期肾性贫血患者,根据随机数字表法随机分为对照组(44例)和治疗组(44例)。对照组予重组人促红细胞生成素注射液及多糖铁复合物治疗,治疗组在此基础上联合泄浊养血法中药方治疗,连续服用3个月,观察治疗前后两组临床疗效、红细胞计数(RBC)、血红蛋白(Hb)、血清肌酐(Scr)、尿素氮(BUN)、肾小球滤过率(eGFR)、尿微量白蛋白(mALB)、丙氨酸氨基转移酶(ALT)、天门冬氨酸氨基转移酶(AST)的变化,症状积分及不良反应发生率。[结果]治疗3个月后,治疗组总有效率为86.36%,对照组为56.82%,治疗组临床疗效优于对照组(P<0.05);症状积分、RBC、Hb、Scr、BUN、mALB均较治疗前改善,且治疗组优于对照组(P<0.05);安全性指标中AST、ALT治疗前后数值变化,差异无统计学意义(P>0.05)。两组病例中均未出现不良反应。[结论]泄浊养血法联合重组人促红细胞生成素注射液治疗可以改善CKD 3~5期非透析肾性贫血患者临床症状,提高临床疗效,延缓肾功能进展,且具有一定的安全性。 展开更多
关键词 肾性贫血 泄浊养血方 重组人促红素注射液 CKD 3~5期
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超声造影联合血清Ficolin-3,FOXM1对2型糖尿病下肢动脉病变的诊断价值分析
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作者 何兰芳 康佳 +2 位作者 沙晓溪 吕德 康彧 《四川医学》 CAS 2024年第9期983-988,共6页
目的超声造影联合血清纤维胶凝蛋白-3(Ficolin-3)、叉头框蛋白M1(FOXM1)对2型糖尿病(T2DM)下肢动脉病变的诊断价值分析。方法选取2022年2月至2023年2月我院收治的T2DM患者114例,以下肢动脉血管造影检查为金标准,将患者分为下肢动脉病变... 目的超声造影联合血清纤维胶凝蛋白-3(Ficolin-3)、叉头框蛋白M1(FOXM1)对2型糖尿病(T2DM)下肢动脉病变的诊断价值分析。方法选取2022年2月至2023年2月我院收治的T2DM患者114例,以下肢动脉血管造影检查为金标准,将患者分为下肢动脉病变组23例(病变组)和无下肢动脉病变组91例(T2DM组),另选取同期于本院进行体检的健康志愿者91例为对照组。对患者及健康志愿者进行血清Ficolin-3、FOXM1及超声造影检查;ROC曲线分析血清Ficolin-3、FOXM1对T2DM下肢动脉病变的诊断价值;采用四格表法分析血清Ficolin-3、FOXM1、超声造影及3项联合对T2DM下肢动脉病变的诊断价值。结果病变组、T2DM组血清Ficolin-3水平显著高于对照组,且病变组血清Ficolin-3水平显著高于T2DM组(均P<0.05);病变组、T2DM组血清FOXM1水平显著低于对照组,且病变组血清FOXM1水平显著低于T2DM组(均P<0.05);血清Ficolin-3诊断T2DM下肢动脉病变的曲线下面积为0.868,敏感度为86.96%,特异度为75.82%,最佳截断值为35.12μg/ml;血清FOXM1诊断T2DM下肢动脉病变的曲线下面积为0.854,敏感度为82.61%,特异度为78.02%,最佳截断值为0.57;血清Ficolin-3、FOXM1检查结果与金标准均具有中度一致性(Kappa=0.480、0.481,均P<0.001);超声造影检查结果显示,T2DM下肢动脉病变的阳性检出率为73.91%,与金标准具有较高一致性(Kappa=0.631,P<0.001);3项联合检测的敏感度、漏诊率均显著优于超声造影单独诊断,准确度显著优于Ficolin-3、FOXM1单独诊断,差异均有统计学意义(均P<0.05)。结论血清Ficolin-3、FOXM1联合超声造影检查在T2DM下肢动脉病变诊断中的应用价值较高,进一步提升了诊断的敏感度、准确度,减少了误诊率。 展开更多
关键词 超声造影 纤维胶凝蛋白-3 叉头框蛋白M1 2型糖尿病 下肢动脉病变
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膀胱癌100例血清Zeste基因增强子同源物2和信号传导蛋白3表达水平及诊断价值分析
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作者 吴娟 王丹 +1 位作者 张前进 裴兵 《安徽医药》 CAS 2024年第10期2035-2038,共4页
目的探讨膀胱癌病人血清Zeste基因增强子同源物2(EZH2)和信号传导蛋白3(SMAD3)表达水平及临床意义。方法纳入江苏省人民医院宿迁医院于2021年1月至2022年12月收治的膀胱癌病人进行研究(100例),另选取同期于该院就诊的泌尿系统良性疾病... 目的探讨膀胱癌病人血清Zeste基因增强子同源物2(EZH2)和信号传导蛋白3(SMAD3)表达水平及临床意义。方法纳入江苏省人民医院宿迁医院于2021年1月至2022年12月收治的膀胱癌病人进行研究(100例),另选取同期于该院就诊的泌尿系统良性疾病病人作为良性疾病组(93例)以及健康体检者作为对照(100例)。采用Pearson相关性分析法分析膀胱癌病人血清中EZH2和SMAD3表达水平的相关性;采用logistic多因素回归分析法分析膀胱癌发生的影响因素;采用ROC曲线分析EZH2和SMAD3对膀胱癌的诊断效能。结果膀胱癌病人血清中EZH2(101.34±15.09)ng/L和SMAD3(226.53±25.94)ng/L表达水平均高于良性疾病组(85.96±11.23)ng/L、(203.11±22.18)ng/L和对照组(83.91±9.14)ng/L、(198.03±20.30)ng/L(均P<0.001);膀胱癌病人血清EZH2和SMAD3表达水平呈正相关(r=0.72,P<0.001);膀胱癌组年龄≥60岁(74/187)、有吸烟史的病人(76/166)所占比例均高于良性疾病组(65/187、55/166)及对照组(48/187、35/166)(均P<0.05);年龄、吸烟史、EZH2、SMAD3为发生膀胱癌的危险因素(P<0.05);以良性疾病组为对照,血清EZH2和SMAD3单独检测诊断膀胱癌的曲线下面积(AUC)分别为0.78、0.78,二者联合检测的AUC为0.85,优于各自单独检测(Z_(二者联合-EZH2)=2.81、Z_(二者联合-SMAD3)=2.68,P=0.009、0.007)。结论血清EZH2和SMAD3与膀胱癌的发生有关,二者联合对膀胱癌具有一定的诊断价值。 展开更多
关键词 膀胱肿瘤 Zeste基因增强子同源物2 信号传导蛋白3 诊断价值 表达水平
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CT动脉增强分数、甲胎蛋白异质体3、中性粒细胞与淋巴细胞比值联合检测对肝癌患者介入化疗疗效的评估价值
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作者 王兴龙 冯坤鹏 +1 位作者 袁牧 孟令武 《癌症进展》 2024年第10期1146-1150,共5页
目的 探讨CT动脉增强分数(AEF)、甲胎蛋白异质体3(AFP-L3)、中性粒细胞与淋巴细胞比值(NLR)联合检测对肝癌患者介入化疗疗效的评估价值。方法 选取94例肝癌介入化疗患者,所有患者均于术前1天、术后30天行CT增强扫描,并检测AFP-L3、中性... 目的 探讨CT动脉增强分数(AEF)、甲胎蛋白异质体3(AFP-L3)、中性粒细胞与淋巴细胞比值(NLR)联合检测对肝癌患者介入化疗疗效的评估价值。方法 选取94例肝癌介入化疗患者,所有患者均于术前1天、术后30天行CT增强扫描,并检测AFP-L3、中性粒细胞计数和淋巴细胞计数。根据临床疗效将患者分为治疗有效组[完全缓解(CR)+部分缓解(PR)]和治疗无效组[疾病稳定(SD)+疾病进展(PD)],比较两组患者的临床资料,采用Logistic回归模型分析肝癌患者介入化疗疗效的影响因素。绘制受试者工作特征(ROC)曲线,计算曲线下面积(AUC),分析AEF、AFP-L3、NLR单独及联合检测对肝癌患者介入化疗疗效的评估价值。结果 94例肝癌患者中,治疗有效组37例(CR 10例,PR 27例),治疗无效组57例(SD 34例,PD 23例)。治疗有效组中肿瘤直径﹤5 cm、肿瘤数目为单发、TNM分期为Ⅱb期的患者比例均高于治疗无效组,差异均有统计学意义(P﹤0.05);治疗有效组患者术后30天AEF、AFP-L3、NLR均明显低于治疗无效组,差异均有统计学意义(P﹤0.01)。多因素Logistic回归分析结果显示,术后30天AEF、AFP-L3、NLR较高均是肝癌患者介入化疗疗效的独立危险因素(P﹤0.05)。ROC曲线显示,AEF、AFP-L3、NLR联合检测评估肝癌患者介入化疗疗效的AUC为0.963,灵敏度为92.98%,均高于各指标单独检测。结论 术后30天AEF、AFP-L3、NLR较高均是肝癌患者介入化疗疗效的独立危险因素,三者联合检测可有效评估肝癌患者介入化疗疗效,为后续治疗提供参考。 展开更多
关键词 CT动脉增强分数 甲胎蛋白异质体3 中性粒细胞与淋巴细胞比值 肝癌 介入化疗 疗效
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急性缺血性脑卒中患者血清长链非编码RNA母系表达基因3和Zeste同源物增强子-2表达与神经功能损伤的相关性分析
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作者 李晨曦 白如玉 《心脑血管病防治》 2024年第3期27-31,共5页
目的探讨长链非编码RNA(lncRNA)母系表达基因3(MEG3)与Zeste同源物增强子-2(EZH2)在急性缺血性脑卒中(AIS)患者血清中的表达水平及其与神经功能损伤之间的关系。方法选取延安市人民医院2021年1月至2022年11月收治的92例AIS患者为脑卒中... 目的探讨长链非编码RNA(lncRNA)母系表达基因3(MEG3)与Zeste同源物增强子-2(EZH2)在急性缺血性脑卒中(AIS)患者血清中的表达水平及其与神经功能损伤之间的关系。方法选取延安市人民医院2021年1月至2022年11月收治的92例AIS患者为脑卒中组,92例健康体检者为对照组,根据NIHSS评分将脑卒中组患者分为致残性损伤组19例,非致残性损伤组73例。采用实时荧光定量聚合酶链式反应、酶联免疫吸附法分别检测血清lncRNAMEG3、EZH2水平。采用Spearman相关分析法进行AIS患者血清lncRNAMEG3、EZH2表达水平与美国国立卫生研究院卒中量表(NIHSS)评分之间的相关性分析;采用多因素Logistic回归分析AIS患者合并神经功能致残性损伤的影响因素,并绘制受试者工作特征(ROC)曲线分析血清lncRNA MEG3、EZH2水平对AIS患者合并神经功能致残性损伤的诊断价值。结果脑卒中组患者血清lncRNA MEG3、EZH2表达水平均高于对照组(t=11.817、11.542,P<0.05)。Spearman相关分析显示,AIS患者血清lncRNA MEG3、EZH2水平与NIHSS评分均呈正相关(r=0.540、0.603,P<0.01)。致残性损伤组体质量指数、吸烟史占比、甘油三酯、总胆固醇、同型半胱氨酸、发病-到院时间(ODT)、lncRNAMEG3、EZH2水平均高于非致残性损伤组(t/χ2=2.103、5.050、9.121、5.585、2.276、5.448、4.638、4.682,P<0.05)。多因素Logistic回归分析显示,甘油三酯、总胆固醇、lncRNA MEG3、EZH2以及ODT均是AIS患者合并神经功能致残性损伤的影响因素(OR=4.853、4.277、2.674、3.052、3.901,P<0.05)。lncRNA MEG3、EZH2联合诊断AIS患者合并神经功能致残性损伤的曲线下面积(AUC)大于lncRNAMEG3以及EZH2单独诊断的AUC(Z=2.626、2.954,P<0.01),敏感度、特异度分别为94.74%、82.15%。结论AIS患者血清lncRNA MEG3、EZH2水平均上升,与AIS患者神经功能损伤程度均正相关,可用作AIS患者合并神经功能致残性损伤的诊断指标,且联合诊断效果更好。 展开更多
关键词 急性缺血性脑卒中 神经功能损伤 长链非编码RNA母系表达基因3 Zeste同源物增强子-2
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Does sevoflurane sedation in pediatric patients lead to“pseudo”leptomeningeal enhancement in the brain on 3 Tesla magnetic resonance imaging? 被引量:1
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作者 Kiran Hilal Kumail Khandwala +2 位作者 Saima Rashid Faheemullah Khan Shayan Sirat Maheen Anwar 《World Journal of Radiology》 2023年第4期127-135,共9页
BACKGROUND Prominent leptomeningeal contrast enhancement(LMCE)in the brain is observed in some pediatric patients during sedation for imaging.However,based on clinical history and cerebrospinal fluid analysis,the pati... BACKGROUND Prominent leptomeningeal contrast enhancement(LMCE)in the brain is observed in some pediatric patients during sedation for imaging.However,based on clinical history and cerebrospinal fluid analysis,the patients are not acutely ill and do not exhibit meningeal signs.Our study determined whether sevoflurane inhalation in pediatric patients led to this pattern of‘pseudo’LMCE(pLMCE)on 3 Tesla magnetic resonance imaging(MRI).AIM To highlight the significance of pLMCE in pediatric patients undergoing enhanced brain MRI under sedation to avoid misinterpretation in reports.METHODS A retrospective cross-sectional evaluation of pediatric patients between 0-8 years of age was conducted.The patients underwent enhanced brain MRI under inhaled sevoflurane.The LMCE grade was determined by two radiologists,and interobserver variability of the grade was calculated using Cohen’s kappa.The LMCE grade was correlated with duration of sedation,age and weight using the Spearman rho rank correlation.RESULTS A total of 63 patients were included.Fourteen(22.2%)cases showed mild LMCE,48(76.1%)cases showed moderate LMCE,and 1 case(1.6%)showed severe LMCE.We found substantial agreement between the two radiologists in detection of pLMCE on post-contrast T1 imaging(kappa value=0.61;P<0.001).Additionally,we found statistically significant inverse and moderate correlations between patient weight and age.There was no correlation between duration of sedation and pLMCE.CONCLUSION pLMCE is relatively common on post-contrast spin echo T1-weighted MRI of pediatric patients sedated by sevoflurane due to their fragile and immature vasculature.It should not be misinterpreted for meningeal pathology.Knowing pertinent clinical history of the child is an essential prerequisite to avoid radiological overcalling and the subsequent burden of additional investigations. 展开更多
关键词 BRAIN Pediatrics Gadolinium contrast Pseudo leptomeningeal enhancement 3 Tesla magnetic resonance imaging SEVOFLURANE
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Lu^(3+)掺杂Na_(5)Y_(9)F_(32)∶Ho^(3+)/Yb^(3+)/Ce^(3+)单晶体的增强红色上转换发光与光学温度传感性能
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作者 徐义松 方立志 +2 位作者 夏海平 周雄 宋宏伟 《发光学报》 EI CAS CSCD 北大核心 2024年第7期1104-1113,共10页
采用密封的坩埚下降法技术生长了一系列Lu^(3+)(摩尔分数0、0.6%、1.2%、1.8%)掺杂Na_(5)Y_(9)F_(32)∶Ho^(3+)/Yb^(3+)/Ce^(3+)单晶体。在980 nm LD激发下,观察到单晶体的绿光543 nm(^(5)S_(2)/^(5)F_(4)→^(5)I_(8))、红光656 nm(^(5)... 采用密封的坩埚下降法技术生长了一系列Lu^(3+)(摩尔分数0、0.6%、1.2%、1.8%)掺杂Na_(5)Y_(9)F_(32)∶Ho^(3+)/Yb^(3+)/Ce^(3+)单晶体。在980 nm LD激发下,观察到单晶体的绿光543 nm(^(5)S_(2)/^(5)F_(4)→^(5)I_(8))、红光656 nm(^(5)F_(5)→^(5)I_(8))以及近红外750 nm(^(5)S_(2)/^(5)F4→^(5)I_(7))上转换发光。从上转换发光强度随激发光强度的变化情况,确定了543 nm、656 nm与750 nm的发光为双光子跃迁过程。研究了Lu^(3+)离子掺杂浓度对其发光强度与荧光寿命的影响情况,随着Lu^(3+)掺杂浓度从0增加到1.8%,单晶体中的656 nm红光逐步增强,543 nm绿光与750 nm近红外光随之减弱,红绿光强度比从0.01增加到了1.55,而543 nm荧光寿命从1.29 ms降低至0.99 ms。Lu^(3+)离子的掺入取代Y^(3+)晶格位,改变了单晶体的局域场环境,导致上转换发光强度的变化。基于随温度变化的上转换红光656 nm(^(5)F5→^(5)I8)与绿光543 nm(^(5)S_(2)/^(5)F4→^(5)I8)的发光强度变化,研究了1.8%Lu^(3+)掺杂Na_(5)Y_(9)F_(32)∶Ho^(3+)/Yb^(3+)/Ce^(3+)单晶体在298~448 K范围内的绝对灵敏度和相对灵敏度最大值分别为0.242%·K^(-1)和0.217%·K^(-1)。 展开更多
关键词 Na_(5)Y_(9)F_(32)单晶 增强上转换红光 Ho^(3+)/Yb^(3+)/Ce^(3+) 光学温度传感 能量转移
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那如-3对胶原诱导性关节炎大鼠的保护作用
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作者 赵海玥 张小杉 +4 位作者 段莎莎 施依璐 张敏洁 云书荣 王雅晳 《中成药》 CAS CSCD 北大核心 2024年第6期1842-1849,共8页
目的基于影像学方法探讨蒙药那如-3对类风湿关节炎大鼠的保护作用。方法将大鼠分为正常组、模型组、阳性组及那如-3低、中、高剂量组(0.1、0.2、0.4 g/kg),采用免疫诱导法构建胶原诱导性关节炎(CIA)大鼠模型,给药4周后,观察各组大鼠关... 目的基于影像学方法探讨蒙药那如-3对类风湿关节炎大鼠的保护作用。方法将大鼠分为正常组、模型组、阳性组及那如-3低、中、高剂量组(0.1、0.2、0.4 g/kg),采用免疫诱导法构建胶原诱导性关节炎(CIA)大鼠模型,给药4周后,观察各组大鼠关节炎评分(AI)及体质量变化。采用ELISA法检测各组大鼠血清VEGF、TNF-α及IL-1水平,高频超声及超声造影(CEUS)评估滑膜增生及新生血管情况,X射线及高分辨率显微计算机断层扫描(micro-CT)评估踝关节骨质破坏情况,HE及免疫组化法观察关节滑膜结构及CD31、VEGF、TNF-α、IL-1β表达。结果与模型组比较,那如-3各剂量组大鼠体质量增加(P<0.05),AI评分未见明显变化(P>0.05),血清VEGF、TNF-α水平、滑膜厚度、能量多普勒成像(PDI)血流分级及造影强度、X射线评分、CD31表达均降低(P<0.05),高剂量组IL-1水平及HE评分均降低(P<0.05)。结论那如-3对类风湿关节炎大鼠关节组织具有保护作用,其可能通过抑制滑膜新生血管及炎性细胞因子减轻滑膜炎症,减轻骨侵蚀,延缓病情进展。 展开更多
关键词 那如-3 蒙药 类风湿关节炎 超声造影 MICRO-CT X射线
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Loss of LBP triggers lipid metabolic disorder through H3K27 acetylation-mediated C/EBPβ-SCD activation in non-alcoholic fatty liver disease 被引量:1
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作者 Ya-Ling Zhu Lei-Lei Meng +17 位作者 Jin-Hu Ma Xin Yuan Shu-Wen Chen Xin-Rui Yi Xin-Yu Li Yi Wang Yun-Shu Tang Min Xue Mei-Zi Zhu Jin Peng Xue-Jin Lu Jian-Zhen Huang Zi-Chen Song Chong Wu Ke-Zhong Zheng Qing-Qing Dai Fan Huang Hao-Shu Fang 《Zoological Research》 SCIE CSCD 2024年第1期79-94,共16页
Non-alcoholic fatty liver disease(NAFLD)is associated with mutations in lipopolysaccharide-binding protein(LBP),but the underlying epigenetic mechanisms remain understudied.Herein,LBP^(-/-)rats with NAFLD were establi... Non-alcoholic fatty liver disease(NAFLD)is associated with mutations in lipopolysaccharide-binding protein(LBP),but the underlying epigenetic mechanisms remain understudied.Herein,LBP^(-/-)rats with NAFLD were established and used to conduct integrative targetingactive enhancer histone H3 lysine 27 acetylation(H3K27ac)chromatin immunoprecipitation coupled with high-throughput and transcriptomic sequencing analysis to explore the potential epigenetic pathomechanisms of active enhancers of NAFLD exacerbation upon LBP deficiency.Notably,LBP^(-/-)reduced the inflammatory response but markedly aggravated high-fat diet(HFD)-induced NAFLD in rats,with pronounced alterations in the histone acetylome and regulatory transcriptome.In total,1128 differential enhancer-target genes significantly enriched in cholesterol and fatty acid metabolism were identified between wild-type(WT)and LBP^(-/-)NAFLD rats.Based on integrative analysis,CCAAT/enhancer-binding proteinβ(C/EBPβ)was identified as a pivotal transcription factor(TF)and contributor to dysregulated histone acetylome H3K27ac,and the lipid metabolism gene SCD was identified as a downstream effector exacerbating NAFLD.This study not only broadens our understanding of the essential role of LBP in the pathogenesis of NAFLD from an epigenetics perspective but also identifies key TF C/EBPβand functional gene SCD as potential regulators and therapeutic targets. 展开更多
关键词 Non-alcoholic fatty liver disease C/EBPΒ Lipopolysaccharide-binding protein H3K27ac Integrative analysis enhancer
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A comprehensive review of recent progress on enhancement-modeβ-Ga_(2)O_(3)FETs:Growth,devices and properties
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作者 Botong Li Xiaodong Zhang +10 位作者 Li Zhang Yongjian Ma Wenbo Tang Tiwei Chen Yu Hu Xin Zhou Chunxu Bian Chunhong Zeng Tao Ju Zhongming Zeng Baoshun Zhang 《Journal of Semiconductors》 EI CAS CSCD 2023年第6期7-23,共17页
Power electronic devices are of great importance in modern society.After decades of development,Si power devices have approached their material limits with only incremental improvements and large conversion losses.As ... Power electronic devices are of great importance in modern society.After decades of development,Si power devices have approached their material limits with only incremental improvements and large conversion losses.As the demand for electronic components with high efficiency dramatically increasing,new materials are needed for power device fabrication.Betaphase gallium oxide,an ultra-wide bandgap semiconductor,has been considered as a promising candidate,and variousβ-Ga_(2)O_(3)power devices with high breakdown voltages have been demonstrated.However,the realization of enhancement-mode(E-mode)β-Ga_(2)O_(3)field-effect transistors(FETs)is still challenging,which is a critical problem for a myriad of power electronic applications.Recently,researchers have made some progress on E-modeβ-Ga_(2)O_(3)FETs via various methods,and several novel structures have been fabricated.This article gives a review of the material growth,devices and properties of these E-modeβ-Ga_(2)O_(3)FETs.The key challenges and future directions in E-modeβ-Ga_(2)O_(3)FETs are also discussed. 展开更多
关键词 enhancement mode FETS β-Ga_(2)O_(3)
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调控五配位Al^(3+)含量制备高性能低温Sabatier反应催化剂
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作者 陈志强 蒋榕培 +4 位作者 刘梦然 王青 项锴 孙海云 方涛 《高校化学工程学报》 EI CAS CSCD 北大核心 2024年第3期483-492,共10页
为了制备出高性能低温Sabatier反应Ru基催化剂,通过调控Al_(2)O_(3)载体中五配位Al^(3+)的含量(五配位Al^(3+)占Al物种的比例),实现对Ru基活性位点电子性质的调控。在此过程中,利用~(27)Al固体核磁共振(~(27)Al-NMR)检测Al_(2)O_(3)载... 为了制备出高性能低温Sabatier反应Ru基催化剂,通过调控Al_(2)O_(3)载体中五配位Al^(3+)的含量(五配位Al^(3+)占Al物种的比例),实现对Ru基活性位点电子性质的调控。在此过程中,利用~(27)Al固体核磁共振(~(27)Al-NMR)检测Al_(2)O_(3)载体中五配位Al^(3+)的含量,借助X射线光电子能谱仪(XPS)和H_2程序升温还原(H_(2)-TPR)考察Ru基活性位点电子性质的调控效果,利用固定床反应器测试催化剂性能。结果表明,Al_(2)O_(3)载体中的五配位Al^(3+)可有效调控Ru基活性位点的电子性质,进而提升低温Sabatier反应Ru基催化剂性能。其中,以五配位Al^(3+)含量约为28.1%的Al_(2)O_(3)载体制备的Ru基催化剂,在低温区(<300℃)的CO_(2)转化率和CH_4选择性均可达90%以上。而且,在100 h的稳定性测试中,催化性能没有明显降低。 展开更多
关键词 低温Sabatier反应 Ru基催化剂 五配位Al^(3+) 电子性质调控 催化性能提升
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Ni/γ-Al_(2)O_(3)催化混合长链α-烯烃加氢
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作者 王晓昕 林文添 +2 位作者 荣泽明 郭方 侯召民 《精细化工》 EI CAS CSCD 北大核心 2024年第10期2249-2257,2299,共10页
以γ-Al_(2)O_(3)为载体,通过等体积浸渍法(DI)和电荷增强型干浸渍法(CEDI)制备了不同Ni负载量(理论值,以载体质量为基准,下同)的催化剂Ni/γ-Al_(2)O_(3)(DI)和Ni/γ-Al_(2)O_(3)(CEDI)。通过SEM、TEM、BET和XPS对催化剂进行了表征,探... 以γ-Al_(2)O_(3)为载体,通过等体积浸渍法(DI)和电荷增强型干浸渍法(CEDI)制备了不同Ni负载量(理论值,以载体质量为基准,下同)的催化剂Ni/γ-Al_(2)O_(3)(DI)和Ni/γ-Al_(2)O_(3)(CEDI)。通过SEM、TEM、BET和XPS对催化剂进行了表征,探究了催化剂孔径和混合烯烃粒径之间的关系对催化活性的影响,并考察了其在加氢反应中的性能。结果表明,Ni/γ-Al_(2)O_(3)(DI)和Ni/γ-Al_(2)O_(3)(CEDI)的平均孔径大于混合烯烃的平均粒径宽度(2.17 nm),减小了内扩散的影响,从而提高了催化活性;在120℃、3 MPa条件下,Ni负载量为15%的15Ni/γ-Al_(2)O_(3)(DI)对十八烯和混合烯烃的催化效率分别为9666.1和6580.9 mol/(g·h);而Ni负载量为20%的20Ni/γ-Al_(2)O_(3)(CEDI)对其催化效率更高,分别达到19591.3和14537.8 mol/(g·h)。这主要归因于CEDI通过调节γ-Al_(2)O_(3)表面酸碱性,利用电荷增强效应调控了Ni和γ-Al_(2)O_(3)间的相互作用,使Ni更均匀地分散在载体上,减小了Ni颗粒粒径的尺寸,并优化了活性组分的分散度和稳定性。 展开更多
关键词 烯烃 Ni/γ-Al_(2)O_(3) 等体积浸渍法 电荷增强干浸渍法 结构调控 催化技术
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基于水热合成法制备的MoO_(3-x)纳米槽SERS基底的特性研究
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作者 舒敏 梁俊辉 +2 位作者 陈达 陈招 秦来顺 《人工晶体学报》 CAS 北大核心 2024年第6期1061-1068,共8页
表面增强拉曼散射(SERS)技术可以快速检测微量分子,在医药材料分析、有害物残留、食品安全等领域受到广泛关注。而SERS对被检测物质的响应极限则取决于基底性能,并直接影响最终检测效果。本文着眼于增加基底的比表面积及其与被检测物之... 表面增强拉曼散射(SERS)技术可以快速检测微量分子,在医药材料分析、有害物残留、食品安全等领域受到广泛关注。而SERS对被检测物质的响应极限则取决于基底性能,并直接影响最终检测效果。本文着眼于增加基底的比表面积及其与被检测物之间的光诱导电荷转移能力,通过简单的水热合成法成功制备出具有氧空位缺陷的MoO_(3-x)纳米槽。结合X射线光电子能谱(XPS)、紫外-可见光谱(UV-Vis)、傅里叶变换红外光谱(FT-IR)等手段,对MoO_(3-x)纳米槽的电子结构、光学性质和表面化学环境进行了分析。使用MoO_(3-x)纳米槽作为SERS基底,对罗丹明6G(R6G)、结晶紫(CV)和玫瑰红B(RhB)三种有机染料分子进行了检测,实验结果显示,其对R6G的检测极限可以达到10^(-10)mol/L,与同类型的半导体基底相比,它具有更好的拉曼增强活性。 展开更多
关键词 MoO_(3-x)纳米槽 表面增强拉曼散射 微量分子检测 氧空位缺陷 光诱导电荷转移 R6G
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Mass Transfer-Promoted Fe^(2+)/Fe^(3+)Circulation Steered by 3D Flow-Through Co-Catalyst System Toward Sustainable Advanced Oxidation Processes
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作者 Weiyang Lv Hao Li +6 位作者 Jinhui Wang Lixin Wang Zenglong Wu Yuge Wang Wenkai Song Wenkai Cheng Yuyuan Yao 《Engineering》 SCIE EI CAS CSCD 2024年第5期264-275,共12页
Realizing fast and continuous generation of reactive oxygen species(ROSs)via iron-based advanced oxidation processes(AOPs)is significant in the environmental and biological fields.However,current AOPs assisted by co-c... Realizing fast and continuous generation of reactive oxygen species(ROSs)via iron-based advanced oxidation processes(AOPs)is significant in the environmental and biological fields.However,current AOPs assisted by co-catalysts still suffer from the poor mass/electron transfer and non-durable promotion effect,giving rise to the sluggish Fe^(2+)/Fe^(3+)cycle and low dynamic concentration of Fe^(2+)for ROS production.Herein,we present a three-dimensional(3D)macroscale co-catalyst functionalized with molybdenum disulfide(MoS_(2))to achieve ultra-efficient Fe^(2+)regeneration(equilibrium Fe^(2+)ratio of 82.4%)and remarkable stability(more than 20 cycles)via a circulating flow-through process.Unlike the conventional batch-type reactor,experiments and computational fluid dynamics simulations demonstrate that the optimal utilization of the 3D active area under the flow-through mode,initiated by the convectionenhanced mass/charge transfer for Fe^(2+)reduction and then strengthened by MoS_(2)-induced flow rotation for sufficient reactant mixing,is crucial for oxidant activation and subsequent ROS generation.Strikingly,the flow-through co-catalytic system with superwetting capabilities can even tackle the intricate oily wastewater stabilized by different surfactants without the loss of pollutant degradation efficiency.Our findings highlight an innovative co-catalyst system design to expand the applicability of AOPs based technology,especially in large-scale complex wastewater treatment. 展开更多
关键词 Advanced oxidation processes 3D co-catalyst Flow-through mode enhanced mass transfer Complex wastewater treatment
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Acidic/hypoxia dual-alleviated nanoregulators for enhanced treatment of tumor chemo-immunotherapy
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作者 Xiaoju Guo Xiaoxiao Chen +11 位作者 Jiayi Ding Feng Zhang Shunyang Chen Xin Hu Shiji Fang Lin Shen Chenying Lu Zhongwei Zhao Jianfei Tu Gaofeng Shu Minjiang Chen Jiansong Ji 《Asian Journal of Pharmaceutical Sciences》 SCIE CAS 2024年第2期136-152,共17页
Chemotherapy plays a crucial role in triple-negative breast cancer (TNBC) treatment as it not only directly kills cancer cells but also induces immunogenic cell death. However, the chemotherapeutic efficacy was strong... Chemotherapy plays a crucial role in triple-negative breast cancer (TNBC) treatment as it not only directly kills cancer cells but also induces immunogenic cell death. However, the chemotherapeutic efficacy was strongly restricted by the acidic and hypoxic tumor environment. Herein, we have successfully formulated PLGA-based nanoparticles concurrently loaded with doxorubicin (DOX), hemoglobin (Hb) and CaCO3 by a CaCO3-assisted emulsion method, aiming at the effective treatment of TNBC. We found that the obtained nanomedicine (DHCaNPs) exhibited effective drug encapsulation and pH-responsive drug release behavior. Moreover, DHCaNPs demonstrated robust capabilities in neutralizing protons and oxygen transport. Consequently, DHCaNPs could not only serve as oxygen nanoshuttles to attenuate tumor hypoxia but also neutralize the acidic tumor microenvironment (TME) by depleting lactic acid, thereby effectively overcoming the resistance to chemotherapy. Furthermore, DHCaNPs demonstrated a notable ability to enhance antitumor immune responses by increasing the frequency of tumor-infiltrating effector lymphocytes and reducing the frequency of various immune-suppressive cells, therefore exhibiting a superior efficacy in suppressing tumor growth and metastasis when combined with anti-PD-L1 (αPD-L1) immunotherapy. In summary, this study highlights that DHCaNPs could effectively attenuate the acidic and hypoxic TME, offering a promising strategy to figure out an enhanced chemo-immunotherapy to benefit TNBC patients. 展开更多
关键词 CaCO3-based nanoparticles Hypoxia attenuation Acidity neutralization Reversal of chemotherapy resistance enhanced chemo-immunotherapy
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食管鳞癌组织OTUD3和ILF2表达与临床病理特征及预后的关系
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作者 余慧娟 辛勇 +2 位作者 尹红英 赵家胜 李丽 《国际检验医学杂志》 CAS 2024年第17期2098-2102,共5页
目的探究食管鳞癌组织OTU去泛素酶3(OTUD3)、白细胞介素增强结合因子2(ILF2)表达与临床病理特征及预后的关系。方法选取2019年1月至2020年7月在淮安市第五人民医院行食管癌根治术治疗的102例食管鳞癌患者作为研究对象。应用免疫组织化... 目的探究食管鳞癌组织OTU去泛素酶3(OTUD3)、白细胞介素增强结合因子2(ILF2)表达与临床病理特征及预后的关系。方法选取2019年1月至2020年7月在淮安市第五人民医院行食管癌根治术治疗的102例食管鳞癌患者作为研究对象。应用免疫组织化学检测组织OTUD3、ILF2表达。Spearman秩相关分析食管鳞癌中OTUD3与ILF2表达的关系。Kaplan-Meier生存曲线分析OTUD3、ILF2表达对食管鳞癌预后的影响。COX比例风险模型分析食管鳞癌预后影响因素。结果与癌旁组织相比,食管鳞癌组织中OTUD3阳性率较低,ILF2阳性率较高,差异均有统计学意义(P<0.05)。癌组织中OTUD3和ILF2表达呈负相关(r=-0.712,P<0.001)。相比于TNM分期Ⅰ~Ⅱ期、中高分化程度、无淋巴结转移食管鳞癌患者,TNM分期Ⅲ期、低分化程度、有淋巴结转移食管鳞癌患者组织OTUD3阳性率较低,ILF2阳性率较高,差异有统计学意义(P<0.05)。OTUD3阳性组患者3年累积生存率高于OTUD3阴性组,差异有统计学意义(Log-rank χ^(2)=5.869,P=0.015);ILF2阳性组患者3年累积生存率低于ILF2阴性组,差异有统计学意义(Log-rank χ^(2)=16.257,P<0.001)。TNM分期、淋巴结转移、分化程度、OTUD3及ILF2是影响食管鳞癌患者预后的独立因素。结论食管鳞癌组织OTUD3表达降低,ILF2表达升高,均参与食管鳞癌肿瘤的恶性进展,是影响食管鳞癌患者预后的独立因素。 展开更多
关键词 食管鳞癌 OTU去泛素酶3 白细胞介素增强结合因子2 预后
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IFITM3、BTBD7、PEA3在非小细胞肺癌中的表达及临床意义
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作者 李世泽 梁红卫 赵迪宏 《吉林医学》 CAS 2024年第1期16-21,共6页
目的:分析干扰素诱导跨膜蛋白3(IFITM3)、结构域蛋白7(BTBD7)、多瘤病毒增强子激活剂3(PEA3)在非小细胞肺癌(NSCLC)中的表达及相关性研究。方法:选取2021年2月~2022年2月江门市人民医院进行肺癌手术治疗的80例患者为研究对象,在进行手... 目的:分析干扰素诱导跨膜蛋白3(IFITM3)、结构域蛋白7(BTBD7)、多瘤病毒增强子激活剂3(PEA3)在非小细胞肺癌(NSCLC)中的表达及相关性研究。方法:选取2021年2月~2022年2月江门市人民医院进行肺癌手术治疗的80例患者为研究对象,在进行手术过程中,切取其肺癌患者癌组织,为本研究组织标本,同时切取相应的癌旁组织,进行数据的比较。使用免疫组化法检测IFITM3、BTBD7、PEA3表达。观察IFITM3、BTBD7、PEA3在非小细胞肺癌中的表达及相关性。结果:与癌旁组织比较,癌组织IFITM3、BTBD7、PEA3阳性表达率升高,差异有统计学意义(P<0.05)。NSCLC组织IFITM3、BTBD7、PEA3表达与患者年龄、性别、肿瘤直径、吸烟史、组织学分型比较差异均无统计学意义(P>0.05)。NSCLC组织中于IFITM3、BTBD7、PEA3表达于TNM分期、分化程度、胸膜转移、淋巴结转移,差异均有统计学意义(P<0.05)。NSCLC组织IFITM3、BTBD7之间表达呈正相关(r=0.518,P=0.001);NSCLC组织BTBD7、PEA3表达呈正相关(r=0.604,P=0.001);NSCLC组织IFITM3、PEA3表达呈正相关(r=519,P=0.001)。结论:NSCLC IFITM3、BTBD7、PEA3表达呈上调状态,三者之间具有密切相关性,与其表达的高低变化与TNM分期、分化程度、胸膜转移、淋巴结转移等临床病理症状之间具有相关性,由此表明,IFITM3、BTBD7、PEA3可能参与NSCLC的发展过程。 展开更多
关键词 非小细胞肺癌 干扰素诱导跨膜蛋白3 结构域蛋白7 多瘤病毒增强子激活剂3
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纳米Al_(2)O_(3)渗吸驱油剂的性能评价
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作者 杨昌华 张永伟 +4 位作者 魏军红 王绘鹏 王辰 梁拓 阿里 《应用化工》 CAS CSCD 北大核心 2024年第10期2277-2283,共7页
低渗致密油藏储层基质渗透率低、孔喉小,常规提高采收率方法难以有效驱替出低渗透储层中的原油。选用表面活性剂与纳米Al_(2)O_(3)颗粒合成一种纳米渗吸驱油剂,通过对其进行稳定性优化、界面张力和润湿性静态评价,开展岩心渗吸和驱替实... 低渗致密油藏储层基质渗透率低、孔喉小,常规提高采收率方法难以有效驱替出低渗透储层中的原油。选用表面活性剂与纳米Al_(2)O_(3)颗粒合成一种纳米渗吸驱油剂,通过对其进行稳定性优化、界面张力和润湿性静态评价,开展岩心渗吸和驱替实验,研究纳米驱油剂在低渗透岩心中渗吸和驱油效果。结果显示,纳米Al_(2)O_(3)渗吸驱油剂能够改变岩石壁面润湿性,润湿角改变程度可达57.5%;有效降低界面张力,使其下降至70%;对于低渗透岩心具有较好的渗吸采收效果,60℃条件下渗吸采收效果可达37%;驱替实验中,纳米驱油剂提高采收率可达16%。 展开更多
关键词 低渗致密油藏 纳米Al_(2)O_(3)复配体系 润湿性 渗吸效果 提高采收率
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