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Sodium cellulose sulfate: A promising biomaterial used for microcarriers' designing

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Frontiers of Chemical Science and Engineering 2019年第1期13卷 46-58页

作者： Qing-Xi wu yi-Xin Guan Shan-jing Yao Key Laboratory of Biomass Chemical Engineering of Ministry of Education College of Chemical and Biological EngineeringZhejiang UniversityHangzhou 310027China School of Life Sciences Anhui UniversityAnhui Key Laboratory of Modem BiomanufacturingKey Laboratory of Eco-engineering and Biotechnology of Anhui ProvinceHefei 230601China

Due to a worldwide focus on sustainable materials for human health and economy services, more and more natural renewable biomass are regarded as promising materials that could replace synthetic polymers and reduce global dependence on petroleum resources. Cellulose is known as the most abundant renewable polymer in nature, varieties of cellulose-based products have been developed and have gained growing interest in recent years. In this review, a kind of water-soluble cellulose derivative, i.e., sodium cellulose sulfate (NaCS) is introduced. Details about NaCS's physicochemical properties like solubility, biocompatibility, biodegradability, degree of substitution, etc. are systematically elaborated. And promising applications of NaCS used as biomaterials for microcarriers' designing, such as microcell- carriers, micro-drug-carriers, etc., are presented.

关键词： sodium cellulose sulfate biomaterial physicochemical properties microcarriers

考虑消费者异质性和在线购物信任度的双渠道公益营销决策

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管理工程学报 2025年第2期39卷 175-189页

作者：吴传良田中俊陈静上海财经大学商学院上海200433 淮南师范学院经济与管理学院安徽淮南232038 东南大学经济管理学院江苏南京211189

当制造商在实体和网络两个渠道销售同质产品时,实体和网络间会产生渠道竞争。相关主体在网络渠道实施公益营销可以提升消费者的在线购物信任度从而增强网络渠道产品竞争力。公益营销的成功实施离不开异质性消费者(亲社会和非亲社会消费... 详细信息

当制造商在实体和网络两个渠道销售同质产品时,实体和网络间会产生渠道竞争。相关主体在网络渠道实施公益营销可以提升消费者的在线购物信任度从而增强网络渠道产品竞争力。公益营销的成功实施离不开异质性消费者(亲社会和非亲社会消费者)中亲社会消费者产生的温情效应。温情效应的产生影响了产品定价。网络渠道可通过决策单位捐赠金额的大小改变温情效应的强度。本文以一个制造商和一个实体分销商组成的双渠道供应链为研究对象,通过构建Stackelberg动态博弈模型研究消费者异质性和在线购物信任度对双渠道供应链公益营销决策的影响问题。研究表明:制造商在网络渠道实施公益营销加剧了渠道之间的竞争。当温情效应较大时,网络渠道可以利用公益营销,采用定高价的方式仅服务于亲社会消费者,高价产生的边际收益增加足以弥补放弃非亲社会消费者转移至实体分销渠道的利润损失;当温情效应较小时,网络渠道应该兼顾两种异质性消费者,且与不实施公益营销时相比,制造商利润以及社会福利都会增加;捐赠总金额随着消费者在线购物信任度的提高先减少后增加,当温情效应较小时,单位捐赠金额与亲社会消费者比例以及公益营销偏好程度有关,而当温情效应较大时,单位捐赠金额只与公益营销偏好程度有关。

关键词：公益营销消费者异质性信任度双渠道温情效应

Joint power and spectrum allocation in multi-hop cognitive radio networks

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The Journal of China Universities of Posts and Telecommunications 2014年第2期21卷 9-14页

作者： wu jing LI yi LIU Gang JI Hong School of Telecommunication Engineering Beijing University of Posts and Telecommunications

Various cognitive network technologies are developed rapidly. In the article, the power and spectrum allocation in multi-hop cognitive radio network （CRN） with linear topology is investigated. The overall goal is to minimize outage probability and promote spectrum utility, including total reward and fairness, while meeting the limits of total transmit power and interference threshold to primary user simultaneously. The problem is solved with convex optimization and artificial bee colony （ABC） algorithm jointly. Simulation shows that the proposed scheme not only minimizes outage probability, but also realizes a better use of spectrum.

关键词： cognitive radio power allocation outage probability spectrum utility ABC algorithm

In vitro and in vivo degradation behavior of poly(trimethylene carbonate-co-D,L-lactic acid)copolymer

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Regenerative Biomaterials 2017年第4期4卷 207-213页

作者： Zhengyu Ma yi wu jing Wang Changsheng Liu Engineering Research Center for Biomedical Materials of Ministry of Education School of Materials Science and EngineeeringEast China University of Science and TechnologyShanghai 200237People’s Republic of China The State Key Laboratory of Bioreactor Engineering School of Materials Science and EngineeringEast China University of Science and TechnologyShanghai 200237People’s Republic of China Key Laboratory for Ultrafine Materials of Ministry of Education School of Materials Science and EngineeringEast China University of Science and TechnologyShanghai 200237People’s Republic of China

We present P(TMC-co-DLLA)copolymer with the molar ratio of TMC:DLLA紏15:85 was used to systematic study of in vivo and in vitro degradation *** homogeneous copolymer specimens were prepared by compression molding *** in vitro and in vivo degradation were,respectively,performed at simulative body condition and implanted into rat’s subcutaneous *** were followed via physicochemical and histological analysis such as SEM,GPC,DSC,FTIR and H&E *** results demonstrate that copolymeric material can degrade in phosphate buffer solution(PBS)and in rat’s body,and the in vivo degradation rate is *** decline of molecule weight and mass loss has been observed,which led to the attenuation of mechanical ***,apart from the hydrolysis,macrophagocytes took part in the phagocytosis in vivo,indicating that degradation rate could be regulated by the combinational *** is concluded that P(TMC-co-DLLA)copolymer is a promising candidate for tissue repair.

关键词： P(TMC-co-DLLA) copolymer degradation tissue repair

Determination of Acetonitrile Volume Fraction in Mobile Phase by HPLC

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Chemical Research in Chinese Universities 2008年第6期24卷 694-696页

作者： wu yi WANG Zhi-wu GU jing-kai WANG ying-wu Research Center of Drug Metabolism College of Life Sciences College of Pharmacy School of Public Health Jilin University Changchun 130021 P. R. China

This paper reports the development and validation of an assay for the determination of acetonitrile in the recycled mobile phase using high performance liquid chromatography（HPLC）. The method is based on that the retention in reversed-phase liquid chromatography increases with decreasing concentration of organic phase in the mobile phase. The natural logarithm of the capacity ratio for a given solute is linearly related to the volume fraction of the organic modifier in the mobile phase. For dimethylphthalate and diethylphthalate, the linearity range is 30%--60%, and for biphenyl and terphenyl, the range is 60%--95%. Precision values（RSD） were both 〈1% and the accuracy（RE） was in the range of ±1%. The assay was successfully applied to the determination of acetonitrile concentration of recycled mobile phase after the distillation of the column eluent in our laboratory.

关键词： Mobile phase HPLC Acetonitrile

持久性发疹性斑状毛细血管扩张症临床及组织病理特点

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临床皮肤科杂志 2016年第10期45卷 690-693页

作者：王晓华饶朗蔡碧珊陈文静林尔艺吴铁强谷梅陈永锋广东省皮肤病医院广东广州5100091 广东医学院广东湛江524037

目的:分析持久性发疹性斑状毛细血管扩张症的临床和组织病理特点。方法:对该8例持久性发疹性斑状毛细血管扩张症患者的临床资料(包括临床、组织病理表现及治疗情况)进行回顾性分析。结果:所有患者均为男性,皮损好发于胸部与上肢,Darier... 详细信息

目的:分析持久性发疹性斑状毛细血管扩张症的临床和组织病理特点。方法:对该8例持久性发疹性斑状毛细血管扩张症患者的临床资料(包括临床、组织病理表现及治疗情况)进行回顾性分析。结果:所有患者均为男性,皮损好发于胸部与上肢,Darier征阳性1例。皮损组织病理检查:表皮角化过度,真皮浅层可见浅层毛细血管扩张,Giemsa染色阳性。8例患者均无系统性损害,其中1例患者有乙型肝炎病史。口服酮替芬等治疗效果不明显,采用补骨脂素长波紫外线(PUVA)治疗,症状可缓解。结论:临床表现结合皮损组织病理学检查为诊断该病的依据。

关键词：毛细血管扩张症斑状发疹性持久性

Generalized Notions of Character Amenability

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Acta Mathematica Sinica,English Series 2013年第7期29卷 1329-1350页

作者： Hasan Pourmahmood AGHABABA Luo yi SHI Yu jing wu Department of Mathematics University of Tabriz Department of Mathematics Tianjin Polytechnic University Tianjin Vocational Institute

In this paper, the concepts of approximate character amenability （contractibility）, uniform approximate character amenability （contractibility） and w^＊-approximate character amenability are introduced. We are concerned with the relations among the generalized concepts of character amenability for Banach algebras. We show that approximate character amenability, w^＊-approximate character amenability and approximate character contractibility are the same properties, as uniform approximate character amenability and character amenability as uniform approximate character contractibility and character contractibility. The general theory for these concepts is also developed. Moreover, approximate character amenability of several concrete classes of Banach algebras related to locally compact groups and also some discrete semigroups is considered.

关键词： Banach algebras character amenability approximate character amenability locally compact groups

Selective G6PDH inactivation for Helicobacter pylori eradication with transformed polysulfide

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Science China Life Sciences 2025年

作者： Xiaonan Wang Ning Zhou Xuejiao J.Gao Zijing Zhu Minmin Sun Qian Wang Haolin Cao Xuetong wu Caiyu Zhou Qingkang Zheng Ye Yuan Yuan Liu Lei Chen jing Jiang Pengcheng Bu Lizeng Gao CAS Engineering Laboratory for Nanozyme Key Laboratory of Biomacromolecules Institute of Biophysics Chinese Academy of Sciences School of Life Sciences University of Chinese Academy of Sciences College of Chemistry and Chemical Engineering Jiangxi Normal University Key Laboratory of Epigenetic Regulation and Intervention Institute of Biophysics Chinese Academy of Sciences Nanozyme Laboratory in Zhongyuan School of Basic Medical Sciences Zhengzhou University Nanozyme Laboratory in Zhongyuan Henan Academy of Innovations in Medical Science

Alternative treatment for the highly prevalent Helicobacter pylori infection is imperative due to rising antibiotic resistance. We unexpectedly discovered that the anti-H. pylori component in garlic is hydrogen polysulfide（H2S_n, n≥2）, not organic polysulfides. Studies on the mechanism of action（MoA） show that H2S_nspecifically inactivates H. pylori glucose-6-phosphate dehydrogenase（G6PDH） by interfering with electron transfer from glucose-6-phosphate（G6P） to nicotinamide adenine dinucleotide phosphate（NADP+）. However, low H2S_nyield makes garlic derivatives hard to be a reliable donor of H2S_nto treat H. pylori infection. To address this challenge, we established a polysulfide transformation process from garlic organosulfur compounds into Fe3S4that generates H2S_nwith a 25–58 times increase in *** chitosan encapsulation, we designed a gastric-adaptive H2S_nmicroreactor（GAPSR） that eradicates H. pylori with 250 times higher efficiency under gastric conditions. A single GAPSR achieves more rapid H. pylori eradication than combined antibiotics therapy without disturbing the gut microbiota. These findings indicate a distinct MoA transformation mediated by polysulfide as an alternative candidate to treat H. pylori infection.

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Spherical Bi_(2)O_(3)/ATO catalyst with N_(2)pre-reduction electrocatalytic reduction of CO_(2)to formic acid

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Journal of Environmental Sciences 2024年第6期140卷 331-340页

作者： Junying yi Yuli Chen Dongze Lai Bihong Lv Xiaomin wu Guohua jing Department of Environmental Science&Engineering College of Chemical EngineeringHuaqiao UniversityXiamenFujian 361021China

To achieve carbon neutrality,the Chinese government needs to gain a comprehensive understanding of the sources and drivers of greenhouse gas(GHG)emissions,particularly at the county *** County in eastern China is a typical example of an industrial transformation from quarrying to a low-carbon *** study analyzed the decoupling types and structural characteristics of GHG emissions and the driving factors of carbon dioxide(CO_(2))emissions in the Anji from 2006 to 2019,and explored the differences between countylevel and provincial-level or city-level *** was observed that energy-related activities are the main source of GHG emissions in Anji and that economic development is the driving factor behind the increasing CO_(2)***,industrial transformation and upgradation coupled with the alternative use of clean energy limit the growth of GHG *** study details the GHG emissions of county during the industrial transformation stage and provides corresponding policy recommendations for county governments.

关键词： N_(2)prereduction CO_(2)electroreduction Bi_(2)O_(3)/ATO catalyst Formate