期刊文献+
共找到89篇文章
< 1 2 5 >
每页显示 20 50 100
代谢组学在肝硬化及其并发症中的应用
1
作者 林果 陈纪宏 +3 位作者 尹宇航 赵浩南 刘壮 祁兴顺 《世界华人消化杂志》 CAS 2024年第8期561-568,共8页
肝硬化是多种肝病的终末期阶段.一旦肝硬化进展至失代偿期,将会发生各种并发症,降低患者生存质量及生存率.代谢组学技术通过分析患者体内的代谢物,揭示了与肝硬化进展密切相关的代谢变化,为肝硬化及其并发症的早期诊断和预后评估提供新... 肝硬化是多种肝病的终末期阶段.一旦肝硬化进展至失代偿期,将会发生各种并发症,降低患者生存质量及生存率.代谢组学技术通过分析患者体内的代谢物,揭示了与肝硬化进展密切相关的代谢变化,为肝硬化及其并发症的早期诊断和预后评估提供新的生物标志物,对改善患者预后具有一定价值.本文对代谢组学在肝硬化及其并发症中的应用进展作一综述. 展开更多
关键词 肝硬化 代谢组学 生物标志物
下载PDF
A green cross-linking method for the preparation of renewable threedimensional graphene sponges for efficient adsorption of Congo red dye
2
作者 zhuang liu Bo Gao +3 位作者 Haoyuan Han Yuling Li Haiyang Fu Donghui Wei 《Chinese Journal of Chemical Engineering》 SCIE EI CAS CSCD 2024年第2期84-93,共10页
Graphene-based materials possess significant potential for the treatment of dye wastewater due to their exceptional adsorption properties toward stubborn pollutants.However,their utilization is hindered by high prepar... Graphene-based materials possess significant potential for the treatment of dye wastewater due to their exceptional adsorption properties toward stubborn pollutants.However,their utilization is hindered by high preparation costs,low yields,environmental pollution during synthesis,and challenges in regenerating the adsorbent.This study proposes a novel approach to address these limitations by developing nitrogen-doped three-dimensional(3D)polyvinyl alcohol(PVA)crosslinked graphene sponges(N-PGA)using a cross-linking method with ammonium carbonate.This method offers a relatively mild,environmentally friendly approach.Ammonium carbonate serves as both a reducing and modifying agent,facilitating the formation of the intrinsic structure of N-PGA and acting as a nitrogen source.Meanwhile,PVA is utilized as the cross-linking agent.The results demonstrate that N-PGA exhibits a favorable internal 3D hierarchical porous structure and possesses robust mechanical properties.The measured specific surface area(BET)of N-PGA was as high as406.538 m^(2)·g^(-1),which was favorable for its efficient adsorption of Congo red(CR)dye molecules.At an initial concentration of 50 mg·L^(-1),N-PGA achieved an impressive removal rate of 89.6%and an adsorption capacity of 112 mg·g^(-1)for CR dye.Furthermore,it retained 79%of its initial adsorption capacity after 10 cycles,demonstrating excellent regeneration performance.In summary,the synthesized N-PGA displays remarkable efficacy in the adsorption of CR dye in wastewater,opening up new possibilities for utilizing 3D porous graphene nanomaterials as efficient adsorbents in wastewater treatment. 展开更多
关键词 Green chemistry Graphene sponge Adsorbents ADSORPTION Congo red Regeneration
下载PDF
Phase structure evolution and its effect on magnetic and mechanical properties of B-doped Sm_(2)Co_(17)-type magnets with high Fe content
3
作者 Yao-Wen Li zhuang liu +8 位作者 Hai-Chen Wu Fang Wang Chao-Qun Zhu Dong-Liang Tan Yu liu Yang Yang Ming-Xiao Zhang Ren-Jie Chen A-Ru Yan 《Chinese Physics B》 SCIE EI CAS CSCD 2024年第9期582-588,共7页
The unique cellular microstructure of Fe-rich Sm_(2)Co_(17)-type permanent magnets is closely associated with the structure of the solid solution precursor.We investigate the phase structure,magnetic properties,and me... The unique cellular microstructure of Fe-rich Sm_(2)Co_(17)-type permanent magnets is closely associated with the structure of the solid solution precursor.We investigate the phase structure,magnetic properties,and mechanical behavior of B-doped Sm_(2)Co_(17)-type magnets with high Fe content.The doped B atoms can diffuse into the interstitial vacancy,resulting in lattice expansion and promote the homogenization of the phase organizational structure during the solid solution treatment in theory.However,the resulting second phase plays a dominant role to result in more microtwin structures and highly ordered 2:17R phases in the solid solution stage,which inhibits the ordering transformation of 1:7H phase during aging and affects the generation of the cellular structure,and to result in a decrease in magnetic properties,yet the interface formed between it and the matrix phase hinders the movement of dislocations and enhances the mechanical properties.Hence,the precipitation of high flexural strain grain boundary phase induced by B element doping is also a new and effective way to improve the flexural strain of Sm_(2)Co_(17)-type magnets.Our study provides a new understanding of the phase structure evolution and its effect on the magnetic and mechanical properties of Sm_(2)Co_(17)-type magnets with high Fe content. 展开更多
关键词 Sm_(2)Co_(17)-type magnets magnetic and mechanical properties
下载PDF
基于占比样本数据融合的高校毕业生平均薪酬模型研究
4
作者 庄刘 杨成 《中国民航飞行学院学报》 2023年第3期44-48,共5页
本文研究了高校毕业生的平均薪酬问题,分别在各专业毕业生的月平均薪酬有显著性差异(类型1)和无显著性差异(类型2)的情形下,建立了基于占比样本数据融合的月平均薪酬模型,指出了传统的基于非专业占比的毕业学生薪酬统计方法的局限性,得... 本文研究了高校毕业生的平均薪酬问题,分别在各专业毕业生的月平均薪酬有显著性差异(类型1)和无显著性差异(类型2)的情形下,建立了基于占比样本数据融合的月平均薪酬模型,指出了传统的基于非专业占比的毕业学生薪酬统计方法的局限性,得到了基于专业占比的毕业学生薪酬统计方法的有效性,在实际应用中具有一定的指导意义。 展开更多
关键词 占比样本 数据融合 随机模拟 平均薪酬
下载PDF
具有泵送控释特性的肠靶向海藻酸钙基Janus胶囊
5
作者 Shuang Wen Xiao-Jie Ju +7 位作者 Wen-Ying liu Yu-Qiong liu Xing-Qun Pu zhuang liu Wei Wang Rui Xie Yousef Faraj Liang-Yin Chu 《Engineering》 SCIE EI CAS CSCD 2023年第5期114-125,I0003,共13页
本研究成功开发了一种具有泵送控释特性的新型肠靶向θ型胶囊,用于疏水性药物的可控释放。该胶囊由海藻酸钙-壳聚糖/鱼精蛋白/二氧化硅(ACPSi)复合壳和呈θ形状的两个腔室组成(θ-ACPSi),两个腔室分别封装有药物和助推剂。肠溶性羟丙甲... 本研究成功开发了一种具有泵送控释特性的新型肠靶向θ型胶囊,用于疏水性药物的可控释放。该胶囊由海藻酸钙-壳聚糖/鱼精蛋白/二氧化硅(ACPSi)复合壳和呈θ形状的两个腔室组成(θ-ACPSi),两个腔室分别封装有药物和助推剂。肠溶性羟丙甲纤维素酞酸醋(HPMCP)微球嵌入到药室的外壳中。θ-ACPSi的外壳在胃部环境中为所封装的药物提供了更好的保护,而在肠道中表现出出色的肠靶向药物释放特性。以吲哚美辛为模型药物、聚丙烯酸(PAA)为助推剂,药室壳层“微通道”的打开和助推室中PAA的溶胀均有助于提高高浓度吲哚美辛的释放速率,保证了吲哚美辛在小肠部位具有恒定的释放速率。在胃中(pH=2.5),只有不到1%的吲哚美辛被释放。然而,当θ-ACPSi胶囊进入小肠(pH=6.8)时,药室外壳中的HPMCP微球因溶解而打开“微通道”,而PAA溶胀以提供泵送动力。结果,超过60%的吲哚美辛在小肠中以恒定速度释放。所制备的θ-ACPSi胶囊为开发响应型泵送控释系统和肠靶向药物递送系统提供了一种潜在的新型模式。 展开更多
关键词 疏水性药物 吲哚美辛 海藻酸钙 羟丙甲纤维素 鱼精蛋白 释放速率 控释系统 可控释放
下载PDF
Effect of CeO_(2)doping on the coercivity of 2:17 type SmCo magnets
6
作者 高晓磊 刘壮 +6 位作者 王广庆 竺超群 程文鑫 张明晓 刘新才 陈仁杰 闫阿儒 《Chinese Physics B》 SCIE EI CAS CSCD 2023年第9期486-491,共6页
The effects of CeO_(2)doping on the magnetic properties and microstructure of 2:17 type SmCo magnets are studied.With the increase of CeO_(2)from 0 wt.%to 3 wt.%,the coercivity of the magnets increases from 22.22 kOe ... The effects of CeO_(2)doping on the magnetic properties and microstructure of 2:17 type SmCo magnets are studied.With the increase of CeO_(2)from 0 wt.%to 3 wt.%,the coercivity of the magnets increases from 22.22 kOe to over 29.37 kOe,which is an increase of more than 30%.When the doping content is lower than 1 wt.%,the remanence and magnetic energy product of the magnets remain almost constant.Both decrease sharply as the doping concentration further increases.After CeO_(2)doping,the oxide content in the magnet increases significantly and the Ce element is uniformly distributed in the magnet.Observing the magnetic domains reveals that doping with CeO_(2)can refine the magnetic domains and make the magnetic domain wall more stable,resulting in a significant increase in the coercivity of the magnets. 展开更多
关键词 2:17 type SmCo magnets COERCIVITY magnetic domain MICROSTRUCTURE
下载PDF
高压微热再生空气干燥器工艺技术分析
7
作者 庄柳 《今日自动化》 2023年第11期54-56,共3页
近年来,高压微热再生吸附式干燥过滤器是新发展起来的一类干燥器产品,基本原理是利用吸附剂在低温高压的情况下吸附能力强,在低压高温的情况下吸附能力弱的特点。高压微热再生吸附式干燥器侧重于解决再生时高压空气节流空气温度降低带... 近年来,高压微热再生吸附式干燥过滤器是新发展起来的一类干燥器产品,基本原理是利用吸附剂在低温高压的情况下吸附能力强,在低压高温的情况下吸附能力弱的特点。高压微热再生吸附式干燥器侧重于解决再生时高压空气节流空气温度降低带来的负面效应,其次可达到延长吸附周期,进一步降低吸附剂粉化风险和减少高压阀门的切换次数。因此,大力发展高压微热再生吸附式干燥过滤器产品,不断进行创新,是行业发展的必然需求。 展开更多
关键词 微热再生 空气干燥器 工艺技术
下载PDF
礼物、耗费与社会延续——黔东南乌寨鼓藏节调查研究 被引量:3
8
作者 杨丹 庄柳 《原生态民族文化学刊》 CSSCI 2022年第3期74-83,154,155,共12页
作为国家级非物质文化遗产,苗族鼓藏节具有内聚和统合家族、促进社会团结的重要作用,然而鼓藏节中大量的杀牲献祭和连日的长桌宴饮行为被认为是“非理性”的经济行为,是“无谓的消耗”。通过对乌寨鼓藏节的田野调查发现,民众通过礼物的... 作为国家级非物质文化遗产,苗族鼓藏节具有内聚和统合家族、促进社会团结的重要作用,然而鼓藏节中大量的杀牲献祭和连日的长桌宴饮行为被认为是“非理性”的经济行为,是“无谓的消耗”。通过对乌寨鼓藏节的田野调查发现,民众通过礼物的流动与“物”的耗费,表达了对祖先的群体性哀思。鼓藏节作为一种集体祭祖仪式,强化了家族自豪、忠诚和团结的情感,那些正跌出社会秩序之人或正处于裂变之中的家庭,通过参与鼓藏祭祖仪式而重新回到社会秩序中来,使社会延续成为可能。 展开更多
关键词 礼物 耗费 鼓藏节 共餐 社会延续
下载PDF
针尖载药可溶性聚合物微针的制备及释药性能 被引量:3
9
作者 李新娇 巨晓洁 +3 位作者 谢锐 汪伟 刘壮 褚良银 《高分子材料科学与工程》 EI CAS CSCD 北大核心 2021年第9期124-132,140,共10页
可溶性聚合物微针是一种新型经皮给药系统,受到医药领域的广泛关注。皮肤弹性会导致微针刺入不完全造成药物浪费。为了解决这一问题,文中通过优化微针溶液配方和制备工艺,采用分步浇注法制备了针尖载药可溶性聚合物微针,提高了给药效率... 可溶性聚合物微针是一种新型经皮给药系统,受到医药领域的广泛关注。皮肤弹性会导致微针刺入不完全造成药物浪费。为了解决这一问题,文中通过优化微针溶液配方和制备工艺,采用分步浇注法制备了针尖载药可溶性聚合物微针,提高了给药效率,并通过构建不同组成结构的聚合物微针实现了释药性能的调控。研究中选择具有生物相容性的聚合物材料,以磺酰罗丹明B为模型药物。结果表明,药物主要集中在微针针尖,占针体高度60%左右。所制备的针尖载药可溶性聚合物微针具有高力学强度和刺入皮肤能力,载药量稳定。体外释药结果表明,通过选择不同的聚合物材料,载药针尖可以实现快速溶解或缓慢溶胀,从而实现药物的快速释放或缓慢释放。文中提出的可溶性聚合物微针实现了针尖载药和释药性能调控,在经皮给药方面具有潜在的应用前景。 展开更多
关键词 微针 经皮给药 释药 可溶性聚合物
下载PDF
具有油相隔离层的微流控法可控制备中空微纤维 被引量:1
10
作者 谭昕玥 巨晓洁 +3 位作者 谢锐 汪伟 刘壮 褚良银 《高分子材料科学与工程》 EI CAS CSCD 北大核心 2022年第3期1-9,17,共10页
利用具有油相隔离层的微流控法连续可控制备了海藻酸钙(CaAlg)中空微纤维。内外相流体通过微流控装置出口挤出,通过调整装置出口与凝固浴液面距离、外相流速和收集速度在油相隔离层中形成同轴射流,射流突破油水相界面进入凝固浴后交联形... 利用具有油相隔离层的微流控法连续可控制备了海藻酸钙(CaAlg)中空微纤维。内外相流体通过微流控装置出口挤出,通过调整装置出口与凝固浴液面距离、外相流速和收集速度在油相隔离层中形成同轴射流,射流突破油水相界面进入凝固浴后交联形成CaAlg中空纤维。实验中,微流控装置出口与凝固浴液面的最优距离为2 mm,外相流速越大,收集速度越小,射流越稳定。在形成稳定射流的条件范围内,制备得到了结构均一的CaAlg中空纤维,通过调整内外相流速和收集速度可以精确调控中空纤维的直径。根据流动连续性方程建立了简单的分析模型用于中空纤维直径的预测,该模型给出了内相流速、外相流速、收集速度与纤维直径的显式关系,并根据实验数据验证了模型预测的准确性。 展开更多
关键词 微流控 油相隔离层 海藻酸钙 中空纤维
下载PDF
二维材料最新研究进展 被引量:18
11
作者 常诚 陈伟 +64 位作者 陈也 陈永华 陈雨 丁峰 樊春海 范红金 范战西 龚成 宫勇吉 何其远 洪勋 胡晟 胡伟达 黄维 黄元 季威 李德慧 李连忠 李强 林立 凌崇益 刘鸣华 刘楠 刘庄 Kian Ping Loh 马建民 缪峰 彭海琳 邵明飞 宋礼 苏邵 孙硕 谭超良 唐智勇 王定胜 王欢 王金兰 王欣 王欣然 Andrew T.S.Wee 魏钟鸣 吴宇恩 吴忠帅 熊杰 熊启华 徐伟高 尹鹏 曾海波 曾志远 翟天佑 张晗 张辉 张其春 张铁锐 张翔 赵立东 赵美廷 赵伟杰 赵运宣 周凯歌 周兴 周喻 朱宏伟 张华 刘忠范 《物理化学学报》 SCIE CAS CSCD 北大核心 2021年第12期1-151,共151页
Research on two-dimensional(2D) materials has been explosively increasing in last seventeen years in varying subjects including condensed matter physics, electronic engineering, materials science, and chemistry since ... Research on two-dimensional(2D) materials has been explosively increasing in last seventeen years in varying subjects including condensed matter physics, electronic engineering, materials science, and chemistry since the mechanical exfoliation of graphene in 2004. Starting from graphene, 2D materials now have become a big family with numerous members and diverse categories. The unique structural features and physicochemical properties of 2D materials make them one class of the most appealing candidates for a wide range of potential applications. In particular, we have seen some major breakthroughs made in the field of 2D materials in last five years not only in developing novel synthetic methods and exploring new structures/properties but also in identifying innovative applications and pushing forward commercialisation. In this review, we provide a critical summary on the recent progress made in the field of 2D materials with a particular focus on last five years. After a brief backgroundintroduction, we first discuss the major synthetic methods for 2D materials, including the mechanical exfoliation, liquid exfoliation, vapor phase deposition, and wet-chemical synthesis as well as phase engineering of 2D materials belonging to the field of phase engineering of nanomaterials(PEN). We then introduce the superconducting/optical/magnetic properties and chirality of 2D materials along with newly emerging magic angle 2D superlattices. Following that, the promising applications of 2D materials in electronics, optoelectronics, catalysis, energy storage, solar cells, biomedicine, sensors, environments, etc. are described sequentially. Thereafter, we present the theoretic calculations and simulations of 2D materials. Finally, after concluding the current progress, we provide some personal discussions on the existing challenges and future outlooks in this rapidly developing field. 展开更多
关键词 Two-dimensional materials Transition metal dichalcogenides Phase engineering of nanomaterials ELECTRONICS OPTOELECTRONICS CATALYSIS Energy storage and conversion
下载PDF
具有钾离子和谷胱甘肽双重响应特性的树状大分子药物载体的制备与控释性能
12
作者 张璐 刘玉琼 +4 位作者 巨晓洁 谢锐 汪伟 刘壮 褚良银 《高分子材料科学与工程》 EI CAS CSCD 北大核心 2022年第2期131-139,146,共10页
文中制备了一种具有钾离子(K^(+))和谷胱甘肽(GSH)双重响应性的树状大分子作为抗癌药物纳米载体。将具有K^(+)响应性的聚(N-异丙基丙烯酰胺-共聚-苯并-18-冠-6-丙烯酰胺)高分子(PNB)和末端带叶酸(FA)的聚乙二醇高分子(FA-PEG-SH)先后接... 文中制备了一种具有钾离子(K^(+))和谷胱甘肽(GSH)双重响应性的树状大分子作为抗癌药物纳米载体。将具有K^(+)响应性的聚(N-异丙基丙烯酰胺-共聚-苯并-18-冠-6-丙烯酰胺)高分子(PNB)和末端带叶酸(FA)的聚乙二醇高分子(FA-PEG-SH)先后接枝到聚酰胺-胺树状大分子(PAMAM)表面,制备得到多功能树状大分子PAMAM-g-PNB-ss-PEG-FA。该树状大分子具有明显的K^(+)响应性,37℃下表现出K^(+)诱导的分子构象转变,在K^(+)浓度5 mmol/L的溶液中呈现收缩状态,在K^(+)浓度150 mmol/L的溶液中呈现伸展状态。同时,PAMAM-g-PNB-ss-PEG-FA还具有明显的还原响应性,当从低浓度GSH溶液转换到高浓度GSH溶液时,二硫键断裂,PAMAM-g-PNB-ss-PEG-FA粒径显著减小。以疏水抗肿瘤药阿霉素(DOX)为模型药物,PAMAM-g-PNB-ss-PEG-FA树状大分子表现出明显的高浓度K^(+)和GSH诱导的释药行为。并且,PAMAM-g-PNB-ss-PEG-FA在一定浓度范围内对正常细胞及肿瘤细胞均无明显毒性。体外细胞实验证实,负载DOX的PAMAM-g-PNB-ss-PEG-FA能够被4T1细胞摄取,并且在肿瘤细胞内能响应胞内高浓度K^(+)和GSH而实现药物快速释放。 展开更多
关键词 K+响应性 谷胱甘肽响应性 树状大分子 靶向释放
下载PDF
咪唑类离子液体中聚(N-异丙基丙烯酰胺)凝胶的体积相变行为
13
作者 邓亚珍 刘壮 +3 位作者 巨晓洁 汪伟 谢锐 褚良银 《高分子材料科学与工程》 EI CAS CSCD 北大核心 2021年第11期1-5,12,共6页
通过热引发的方法制备了聚(N-异丙基丙烯酰胺)(PNIPAM)水凝胶,对PNIPAM水凝胶进行真空冷冻干燥与溶剂置换后得到PNIPAM离子液体凝胶。通过扫描电镜(SEM)及温敏平衡体积溶胀实验分别表征了PNIPAM凝胶的微观结构和PNIPAM凝胶在真空干燥前... 通过热引发的方法制备了聚(N-异丙基丙烯酰胺)(PNIPAM)水凝胶,对PNIPAM水凝胶进行真空冷冻干燥与溶剂置换后得到PNIPAM离子液体凝胶。通过扫描电镜(SEM)及温敏平衡体积溶胀实验分别表征了PNIPAM凝胶的微观结构和PNIPAM凝胶在真空干燥前后的离子液体中体积相变行为。SEM结果表明,真空冷冻干燥后的PNIPAM凝胶具有大量微米级网络结构;温敏平衡体积溶胀实验表明,相同温度下PNIPAM离子液体凝胶的平衡体积随着离子液体阳离子上取代烷基的增长而增大,与真空干燥后的离子液体中的体积相变行为相比,在未真空干燥的离子液体中,PNIPAM离子液体凝胶在低温下的平衡体积显著减小、体积溶胀比增大。说明阳离子取代烷基链的增长有利于PNIPAM在离子液体中的溶胀,且水分对其体积相变行为有较大影响。 展开更多
关键词 聚(N-异丙基丙烯酰胺) 离子液体 体积相变 凝胶
下载PDF
Graphene-based membranes for molecular and ionic separations in aqueous environments 被引量:8
14
作者 zhuang liu Wei Wang +2 位作者 Xiaojie Ju Rui Xie Liangyin Chu 《Chinese Journal of Chemical Engineering》 SCIE EI CAS CSCD 2017年第11期1598-1605,共8页
Graphene-based laminar materials open up to new applications for molecular and ionic separations in aqueous environments due to the atomic thickness, mechanical strength, chemical stability and other fantastic propert... Graphene-based laminar materials open up to new applications for molecular and ionic separations in aqueous environments due to the atomic thickness, mechanical strength, chemical stability and other fantastic properties.Recent advances on controlling the structure and chemical functionality of graphene-based membranes can potentially lead to new classes of tools for desalination, dehydration, toxicant rejection, specific ionic separation and so on. The recent developments of graphene-based membranes prepared by using a concept to form interlayer space between graphene sheets and creating nanoscale or sub-nanoscale pores in a graphene lattice, together with their mass-transfer mechanisms and potential applications in aqueous environments are reviewed. A summary and outlook is further provided on the opportunities and challenges in this arising field.This article is expected to address the intricate details of mass transport through two distinct graphene-based membranes in aqueous environment and to optimize the fabrication of graphene-based membranes as a fascinating separation system for a wide range of applications. 展开更多
关键词 GRAPHENE membranesTwo-dimensional materialsSeparationWater treatmentDesalinationion SELECTIVITY
下载PDF
CaCO3-Assisted Preparation of pH-Responsive Immune-Modulating Nanoparticles for Augmented Chemo-Immunotherapy 被引量:3
15
作者 Yujie Zhu Zhijuan Yang +6 位作者 Ziliang Dong Yimou Gong Yu Hao Longlong Tian Xianzhu Yang zhuang liu Liangzhu Feng 《Nano-Micro Letters》 SCIE EI CAS CSCD 2021年第2期144-161,共18页
Due to the negative roles of tumor microenvironment(TME)in compromising therapeutic responses of various cancer therapies,it is expected that modulation of TME may be able to enhance the therapeutic responses during c... Due to the negative roles of tumor microenvironment(TME)in compromising therapeutic responses of various cancer therapies,it is expected that modulation of TME may be able to enhance the therapeutic responses during cancer treatment.Herein,we develop a concise strategy to prepare pH-responsive nanoparticles via the CaCO3-assisted double emulsion method,thereby enabling effective co-encapsulation of both doxorubicin(DOX),an immunogenic cell death(ICD)inducer,and alkylated NLG919(aNLG919),an inhibitor of indoleamine 2,3-dioxygenase 1(IDO1).The obtained DOX/aNLG919-loaded CaCO3 nanoparticles(DNCaNPs)are able to cause effective ICD of cancer cells and at the same time restrict the production of immunosuppressive kynurenine by inhibiting IDO1.Upon intravenous injection,such DNCaNPs show efficient tumor accumulation,improved tumor penetration of therapeutics and neutralization of acidic TME.As a result,those DNCaNPs can elicit effective anti-tumor immune responses featured in increased density of tumor-infiltrating CD8+cytotoxic T cells as well as depletion of immunosuppressive regulatory T cells(Tregs),thus effectively suppressing the growth of subcutaneous CT26 and orthotopic 4T1 tumors on the Balb/c mice through combined chemotherapy&immunotherapy.This study presents a compendious strategy for construction of pH-responsive nanoparticles,endowing significantly enhanced chemo-immunotherapy of cancer by overcoming the immunosuppressive TME. 展开更多
关键词 CaCO3-assisted double emulsion pH-responsiveness Neutralization of acidic TME Immunosuppressive tumor microenvironment modulation CHEMO-IMMUNOTHERAPY
下载PDF
Accumulated Clinical Experiences from Successful Treatment of 1377 Severe and Critically Ill COVID-19 Cases 被引量:2
16
作者 Yong GAO Hai-bo QIU +27 位作者 Shu ZHOU Zhen-ning WANG Jian-chu ZHANG Zheng-liang ZHANG Zhao-xin QIAN Hong-bo WANG Shi-huan YU Yi-feng LUO Ya dan WANG zhuang liu Wei-ci WANG Ming JIA Li-ming ZHANG Yu ZHANG Yang JIN Yong ZHANG Yong liu Zi-hua ZHOU Ying SU Hui-qing LI Wei-min XIAO Kai HUANG Ping HE Gang LI Zhao-hui FU Shi liu Neng xing LIN Fan-jun CHENG 《Current Medical Science》 SCIE CAS 2020年第4期597-601,共5页
Summary:In late December 2019,COVID-19 was firstly recognized in Wuhan,China and spread rapidly to all of the provinces of China.The West Campus of Wuhan Union Hospital,the designated hospital to admit and treat the s... Summary:In late December 2019,COVID-19 was firstly recognized in Wuhan,China and spread rapidly to all of the provinces of China.The West Campus of Wuhan Union Hospital,the designated hospital to admit and treat the severe and critically ill COVID-19 cases,has treated a large number of such patients with great success and obtained lots of valuable experiences based on the Chinese guideline(V7.0).To standardize and share the treatment procedures of severe and critically ill cases,Wuhan Union Hospital has established a working group and formulated an operational recommendation,including the monitoring,early warning indicators,and several treatment principles for severe and critically ill cases.The treatment experiences may provide some constructive suggestions for treating the severe and critically ill COVID-19 cases all over the world. 展开更多
关键词 2019-nCoV COVID-19 PNEUMONIA TREATMENT GUIDELINES
下载PDF
Neurocutaneous melanosis with an intracranial cystic-solid meningeal melanoma in an adult:A case report and review of literature 被引量:2
17
作者 Bo-Chuan liu Yu-Bo Wang +2 位作者 zhuang liu Yan Jiao Xian-Feng Zhang 《World Journal of Clinical Cases》 SCIE 2022年第15期5025-5035,共11页
BACKGROUND Neurocutaneous melanosis(NCM)is a rare congenital,nonhereditary neurocutaneous syndrome that mainly occurs in children;adult NCM is very rare.Due to its rarity,the clinical features and treatment strategies... BACKGROUND Neurocutaneous melanosis(NCM)is a rare congenital,nonhereditary neurocutaneous syndrome that mainly occurs in children;adult NCM is very rare.Due to its rarity,the clinical features and treatment strategies for NCM remain unclear.The purpose of this study was to explore the clinical features,diagnosis,treatment and prognosis of NCM in adults.Most intracranial meningeal melanomas are solid masses,and cystic-solid malignant melanomas are very rare.Due to the lack of data,the cause of cystic changes and the effect on prognosis are unknown.CASE SUMMARY A 41-year-old woman was admitted to the hospital with intermittent headache for 1 mo.Magnetic resonance imaging(MRI)showed a 4.7 cm×3.6 cm cystic-solid mass in the left temporal lobe with peritumoral edema.The entire mass was removed,and postoperative pathology indicated malignant melanoma.CONCLUSION MRI is the first-choice imaging approach for diagnosing central nervous system diseases in NCM patients,although cerebrospinal fluid may also be used.At present,there is no optimal treatment plan;gross total resection combined with BRAF inhibitors and MEK inhibitors might be the most beneficial treatment. 展开更多
关键词 Neurocutaneous melanosis Meningeal melanoma Central nervous system disease ADULT Cystic-solid tumor Case report
下载PDF
Corrigendum to“Functional Capsules Encapsulating Molecular-Recognizable Nanogels for Facile Removal of Organic Micro- Pollutants from Water”[Engineering 7 (2021) 636–646] 被引量:2
18
作者 Wen-Ying liu Xiao-Jie Ju +6 位作者 Xing-Qun Pu Quan-Wei Cai Yu-Qiong liu zhuang liu Wei Wang Rui Xie Liang-Yin Chu 《Engineering》 SCIE EI 2021年第9期1342-1342,共1页
In section 3.6,page 643,right column,lines 8–9 from bottom,“dsorption/regeneration of the capsules is performed for five cycles,”where“five”should be“six.”
关键词 SORPTION MOLECULAR Functional
下载PDF
Smart membranes for biomedical applications 被引量:1
19
作者 Lin-Bing Zou Jue-Ying Gong +4 位作者 Xiao-Jie Ju zhuang liu Wei Wang Rui Xie Liang-Yin Chu 《Chinese Journal of Chemical Engineering》 SCIE EI CAS CSCD 2022年第9期34-45,共12页
Smart membranes with tunable permeability and selectivity have drawn widespread attention because of their unique biomimetic characteristics.Constructed by incorporating various stimuli-responsive materials into membr... Smart membranes with tunable permeability and selectivity have drawn widespread attention because of their unique biomimetic characteristics.Constructed by incorporating various stimuli-responsive materials into membrane substrates,smart membranes could self-adjust their physical/chemical properties(such as pore size and surface properties)in response to environmental signals such as temperature,pH,light,magnetic field,electric field,redox and specific ions/molecules.Such smart membranes show great prospects in biomedical applications ranging from controlled drug release to bioseparation and tissue engineering.In this review,three controlled release models realized by different designed smart membranes are emphatically introduced,and then smart membranes for biological separation and controlled cell culture are introduced and discussed respectively.At last,the existing challenges of smart membranes for biomedical applications are briefly summarized,and future research topics are suggested. 展开更多
关键词 Membranes POLYMERS Smart materials Controlled release BIOSEPARATION Cell culture
下载PDF
An easily recoverable thermo-sensitive polyelectrolyte as draw agent for forward osmosis process 被引量:4
20
作者 Yanni Wang Hairong Yu +5 位作者 Rui Xie Kuangmin Zhao Xiaojie Ju Wei Wang zhuang liu Liangyin Chu 《Chinese Journal of Chemical Engineering》 SCIE EI CAS CSCD 2016年第1期86-93,共8页
As a potential solution to the crises of energy and resources, forward osmosis(FO) has been limited by the development of draw agents. An ideal draw agent should be able to generate high osmotic pressure and can be ea... As a potential solution to the crises of energy and resources, forward osmosis(FO) has been limited by the development of draw agents. An ideal draw agent should be able to generate high osmotic pressure and can be easily recovered. In this study, a thermo-sensitive polyelectrolyte of poly(N-isopropylacrylamide-co-acrylic acid)(PNA)is developed as an efficient draw agent, and two easy and simple methods are proposed to effectively recover the polyelectrolytes. After adjusting the pH value of polyelectrolyte solutions to around 6.0, the polyelectrolyte can generate relatively high osmotic pressure, and induce average water fluxes of 2.09 and 2.95 L·m^(-2)·h^(-1) during12 h FO processes when the polyelectrolyte concentrations are 0.20 and 0.38 g·ml^(-1) respectively. After acidifying and heating to 70 °C, the PNA-10 polyelectrolyte can aggregate together because of hydrophobic association and separate from water, so it can be easily recovered by either simple centrifugation or gravitational sedimentation. The recovery ratios of PNA-10 polyelectrolyte in both methods are as high as 89%, and the recovered polyelectrolytes can be reused with almost the same FO performance as fresh ones. The results in this study provide valuable guidance for designing efficient and easily recoverable draw agents for FO processes. 展开更多
关键词 Forward osmosis Draw agent Thermo-sensitive polyelectrolyte Recovery method Poly(N-isopropylacrylamide-co-acrylic acid)
下载PDF
上一页 1 2 5 下一页 到第
使用帮助 返回顶部