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Chinese Medical Journal 2023年第2期136卷 224-226页

作者： Guowu Xu Jinxiang Wang Wenjing Zhou Heng Jin Yanfen Chai haojun fan Shike Hou Ziquan Liu Yanqing Liu Science and Innovation Center Wenzhou Safety(Emergency)InstituteTianjin UniversityWenzhouZhejiang 325000China Department of Emergency Medicine Tianjin Medical University General HospitalTianjin 300052China Department of Pediatric Dentistry Stomatological Hospital of Tianjin Medical UniversityTianjin 300070China Institute of Disaster and Emergency Medicine Tianjin UniversityTianjin 300072China

To the Editor:Cardiac arrest(CA)is one of the leading causes of adult death globally.According to the latest American Heart Association reports,[1]the incidences of Emergency Medical Service-assessed adult out-of-hosp... 详细信息

关键词： cardiac assessed resuscitation

Methods for determination of plasticizer migration from polyvinyl chloride synthetic materials: a mini review

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Journal of Leather Science and Engineering 2022年第1期4卷 111-120页

作者： Yi Chen Shuai Zhou Siyu Pan Dongfang Zhao Jianshe Wei Minzhong Zhao haojun fan Key Laboratory of Leather Chemistry and Engineering of Ministry of Education Sichuan UniversityChengdu 610065People’s Republic of China. Shandong Chengwu Yixin Environmental Protection Sci-Tech Co. Ltd.Shandong 274299People’s Republic of China. Hebei Jingu Renewable Resources Development Co.Ltd. Hebei 052300People’s Republic of China

Plasticizer migration is responsible for premature coating failure in polyvinyl chloride(PVC)synthetic materials that continue to benefit our daily life as a reliable and cost-efficient simulant of genuine leather.In this context,the establishment of standard assays that measure the migration rate of plasticizers under varying scenarios plays a pivotal role in comparing durability of those PVC-derived leather-simulants.In this review,multiple methodologies developed over the last decade for determining plasticizer migration from PVC coating are compiled,with their operational principles,merits,and limitations being taken into consideration along with specific apparatus required for each.A concluding section discusses current challenges in this field,and highlights how nuclear magnetic resonance and computational simulation surpass conventional assays in yielding intercomparable results,and hence screening migration-resistant plasticizers in a labor-and time-saving way.Since migration resistance represents a decisive performance indicator of plasticizers,this systematic review may provide guidance to quite a few practitioners in PVC synthetic material industry,who are now engaged in validating various sustainable alternatives with performance allegedly equal to conventional but toxic di-(2-ethylhexyl)phthalate plasticizer.

关键词： synthetic coating migration

Organosilicon leather coating technology based on carbon peak strategy

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Journal of Leather Science and Engineering 2022年第1期4卷 369-379页

作者： Wenkai Wang haojun fan Lijiang Song Zhenya Wang Heng Li Jun Xiang Qiang Huang Xiangquan Chen Key Laboratory of Leather Chemistry and Engineering of Ministry of Education Sichuan UniversityChengdu 610065China Department of Chemistry University of WarwickCoventry CV47ALUK Chengdu Guibao Science and Technology Co.Ltd Chengdu 610041China.

Based on the demand of carbon peak and carbon emission reduction strategy, divinyl-terminated polydimethyl-siloxane (ViPDMSVi), poly(methylhydrosiloxane) (PMHS), divinyl-terminated polymethylvinylsiloxane (ViPMVSVi), and fumed silica were used as primary raw materials, polydimethylsiloxane (PDMS) synthetic leather coating was in situ constructed by thermally induced hydrosilylation polymerization on the synthetic leather substrate. The effect of the viscosity of ViPDMSVi, the active hydrogen content of PMHS, the molar ratio of vinyl groups to active hydrogen, the dosage of ViPMVSVi and fumed silica on the performance of PDMS polymer coating, including mechanical properties, cold resistance, flexural resistance, abrasion resistance, hydrophobic and anti-fouling properties were investigated. The results show that ViPDMSVi with high vinyl content and PMHS with low active hydrogen content is more conducive to obtaining organosilicon coating with better mechanical properties, the optimized dosage of ViPMVSVi and fumed silica was 7 wt% and 40 wt%, respectively. In this case, the tensile strength and the broken elongation of the PDMS polymer coating reached 5.96 MPa and 481%, showing reasonable mechanical properties for leather coating. Compared with polyurethane based or polyvinyl chloride based synthetic leather, the silicon based synthetic leather prepared by this method exhibits excellent cold resistance, abrasion resistance, super hydrophobicity, and anti-fouling characteristics.

关键词： PDMS polymer coating Synthetic leather In situ hydrosilylation Coating performance Carbon peak strategy

Functional non-glutaraldehyde treated porcine pericardium for anti-coagulation,anti-calcification,and endothelial proliferation bioprosthetic heart valves

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Journal of Leather Science and Engineering 2022年第1期4卷 320-332页

作者： Xiaotong Chen Tao Yu Qunshou Kong Dajun Kuang Hong Xu Zhiyu Zhao Li Yang Gaocan Li haojun fan Yunbing Wang National Engineering Research Center of Clean Technology in Leather Industry Sichuan UniversityChengdu 610065China National Engineering Research Center for Biomaterials Sichuan UniversityChengdu 610065China Venus Medtech(Hangzhou)Inc. HangzhouChina.

In the last decade,the number of transcatheter heart valve replacement for severe heart valve disease has increased exponentially.Although the bioprosthetic artificial heart valve(BHV)has similar fluid dynamics performance to the original heart valve compared with mechanical heart valve so that there is no need to take long-term anticoagulant drugs to prevent thromboembolism,transcatheter BHV replacement are still at risk for thrombosis during the first few months according to the clinical data.However,the use of antithrombotic drugs can also increase the risk of bleeding.Therefore,it is particularly important to improve the anticoagulant properties for the BHV itself.In this work,a kind of non-glutaraldehyde cross-linked BHV material with excellent antithrombotic ability has been prepared from carboxylated oxazolidine treated porcine pericardium(consisting of collagen,elastin and glycoprotein)with the further graft of the anticoagulant heparin sodium via hydrophilic modified chitosan.Along with the similar mechanical properties and collagen stability comparable to the glutaraldehyde cross-linked porcine pericardium(PP),these functional non-glutaraldehyde cross-linked PPs exhibit better biocompatibility,promoted endothelial proliferation and superior anti-calcification ability.More importantly,excellent anticoagulant activity can be observed in the hematological experiments in vivo and in vitro.In summary,these excellent performances make these functional non-glutaraldehyde cross-linked PPs great potentialities in the BHV applications.

关键词： Bioprosthetic heart valves Oxazolidine Cytocompatibility Anti-coagulation

A leather coating with self-healing characteristics

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Journal of Leather Science and Engineering 2020年第1期2卷 50-54页

作者： Feifei Liang Tianyou Wang haojun fan Jun Xiang Yi Chen Key Laboratory of Leather Chemistry and Engineering of Ministry of Education Sichuan UniversityChengdu 610065People’s Republic of China

Genuine leather is often coated before making daily necessities such as shoes,clothing,bags,sofas,car seats,etc.,so as to impart leather products various colours,higher wear resistance and water resistance and so on.However,the coating of these products is often damaged in daily use which will decrease its aesthetic effect and practicability.Therefore,how to improve the scratch resistance of leather coatings has been puzzling people all the time.It is a common knowledge that animals and plants can repair the injured biological tissues by himself.According to this principle,here,we prepared a type of self-healing water-borne polyurethane with disulfide bond in the main chain by using HEDS as chain extender,and the self-healing system was triggered by the disulfide bonds with the help of shape memory function of waterborne Polyurethane,self-healing experiments how that the damaged of leather coating can be repaired fully at 60℃ for 12 h.

关键词： Waterborne polyurethane Self-healing Leather coating

Differences in loading patterns between fast walking and jogging at the same speed in male adults

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Journal of Leather Science and Engineering 2020年第1期2卷 106-112页

作者： Ruoyi Li Hao Liu Mengyuan Guo Jitka Badurova Luming Yang haojun fan National Engineering Laboratory for Clean Technology of Leather Manufacture Sichuan UniversityChengdu 610065China Key Laboratory of Leather Chemistry and Engineering Sichuan UniversityChengdu 610065China Tomas Bata University 76001 ZlinCzech Republic

Fast walking and jogging are two common exercises for people to maintain health in daily life.But the differences in loading patterns of fast walking and jogging are still unclear.The purpose of this study was to compare loading patterns in fast walking and jogging at the same speed,and to identify how differences in foot mechanics influence plantar pressure distribution between the two modes of gait.Totally,49 healthy males participated in this study.Data of pressure parameters,including maximum force(MF),peak pressure(PP),contact area(CA),force-time integral(FTI),were recorded by Pedar-X insole plantar pressure measurement system in participants’fast walking and jogging process at 7 km/h.A Load transfer analysis method was used to quantify the plantar load transference from fast walking to jogging.The results showed that MF,PP and CA increased in metatarsal regions and midfoot regions while decreased in toes regions and heel during jogging when compared with fast walking.FTI decreased in all foot regions during jogging compared to fast walking.Under the effects of spring mechanics and the varus of rearfoot during jogging,fast walking and jogging reveal different loading patterns.Compared jogging to fast walking,load transferred as follow:1)in transverse direction,load transferred from lateral foot to medial foot in metatarsal regions and midfoot regions,2)in longitudinal direction,load transferred from toes to the metatarsal,and from heel to the metatarsal and midfoot.These results also provide suggestions for footwear designs.

关键词： Loading patterns Fast walking Jogging Load transfer

Sustainable and invisible anti-counterfeiting inks based on waterborne polyurethane and upconversion nanoparticles for leather products

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Journal of Leather Science and Engineering 2021年第1期3卷 383-393页

作者： Jun Xiang Jianxun Lin Zhonghui Wang Shenglin Zhou Zhenya Wang Qiang Yan Yidong Liu haojun fan College of Biomass Science and Engineering Key Laboratory of Leather Chemistry and Engineering of Ministry of EducationNational Engineering Research Center of Clean Technology in Leather IndustryState Key Labora-tory of Polymer Materials EngineeringSichuan UniversityChengdu 610065People’s Republic of China State Key Laboratory of Molecular Engineering of Polymers Department of Macromolecular ScienceFudan UniversityShang-hai 200433People’s Republic of China Dongtai City Fu’an Synthetize Material Co.Ltd. YanchengJiangsuPeople’s Republic of China

Counterfeit leather products infringe the intellectual property rights of the business,cause enormous economic loss,and negatively influence the business enthusiasm for innovation.However,traditional anti-counterfeiting materials for leather products suffer from complicated fabrication procedures,photobleaching,and high volatile organic com-pound(VOC)emissions.Here,a sustainable and invisible anti-counterfeiting ink composed of waterborne polyure-thane and water-dispersible lanthanide-doped upconversion nanoparticles(UCNPs)featuring ease of preparation,high photostability,non-toxicity,low VOC emissions,and strong adhesion strength for leather products is designed and synthesized.After decorating on the surface of leather products,the obtained patterns are invisible under normal light conditions.Upon irradiation at 808 nm,the invisible patterns can be observed by naked eyes due to the visible light emitted by 808 nm excited UCNPs.Our approach described here opens a new pathway to realize the long-term,stable anti-counterfeiting function of leather products.

关键词： Sustainable Invisible anti-counterfeiting Waterborne polyurethane Upconversion nanoparticles Near-infrared light

5G+直升机航空医学救援流程中国专家共识(2024版)

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中华危重病急救医学 2024年第3期36卷 225-230页

作者：中国医师协会急救复苏与灾难医学专业委员会中国医学救援协会救援防护分会航空救援医学专家共识组韩伟樊毫军王志翔周强吴静不详深圳大学总医院急诊科广东深圳518071 天津大学应急医学研究院天津300072 中华医学会航空航天医学分会北京100142 深圳市急救中心中南大学湘雅医院公卫应急办

为了解决中国航空医学救援相对于发达国家的滞后状况,聚焦航空救援通信网络和通信技术不足等关键短板。团队通过5G技术建立了救援直升机、急救中心与医院之间的高效网络,实现毫秒级速度和实时医学数据传输。中国医师协会急救复苏与灾难... 详细信息

为了解决中国航空医学救援相对于发达国家的滞后状况,聚焦航空救援通信网络和通信技术不足等关键短板。团队通过5G技术建立了救援直升机、急救中心与医院之间的高效网络,实现毫秒级速度和实时医学数据传输。中国医师协会急救复苏与灾难医学专业委员会整合急救专家、医疗机构和应急救援队伍的建议,共同撰写了《5G+直升机航空医学救援流程中国专家共识(2024版)》。共识推荐5G技术在航空医学救援领域应用推广、在启动航空医学救援时利用5G技术进行预警和调度,以及在救援现场及飞行过程中使用5G技术将患者生命体征、高清视频等信息传输至急救中心和接诊医院。成功案例充分展示了5G技术在航空医学救援中的潜力。该共识旨在规范和指导5G+直升机医学救援,最终实现患者"登机即入院"的目标。

关键词： 5G技术直升机航空医学救援流程专家共识

Epoxidized methyl ricinoleate bio-plasticizer with a pendant acetate ester for PVC artificial material:circumventing existing limit on achievable migration resistance

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Journal of Leather Science and Engineering 2019年第1期1卷 13-22页

作者： Siyu Pan Delong Hou Gaofu Yang Qiuping Xie Sunxian Yan Qi Zeng Zhonghui Wang Yi Chen haojun fan Key Laboratory of Leather Chemistry and Engineering of Ministry of Education Sichuan UniversityChengdu 610065People’s Republic of China National Engineering Laboratory for Clean Technology of Leather Manufacture Sichuan UniversityChengdu 610065People’s Republic of China

Processing polyvinyl chloride(PVC)artificial material requires plasticizer that softens the PVC coating.Currently,utilizing unsaturated fatty acid methyl esters to obtain epoxidized fatty acid methyl ester(EFAME)bio-plasticizers constitutes an environmentally responsible solution to substitute conventional ortho-phthalates that are endocrine disruptors or probable carcinogens.However,commercial EFAMEs,even with the highest epoxy value(ca.5.5-5.8%)so far,still suffer from fast leaching from the PVC matrix,burdening the environment and shortening lifespan of the artificial material.Here,we report a proof-of-principle demonstration of a new strategy to obtain migration-resistant EFAME that harnesses the midchain hydroxyl of methyl ricinoleate and covalently attachment of a pendant acetate ester.Despite a low epoxy value(3.0%),the engineered bio-plasticizer displays significantly suppressed migration in multiple scenarios compared with one conventional EFAME with much higher epoxy value(5.8%).Circumventing the limit confronting previous strategy that highlights the sole contribution of epoxy value to achievable migration resistance,the rationale herein may provide guidance for designing new EFAMEs with comparable performance to ortho-phthalates,thus bringing the old and oft-maligned PVC artificial material industry one step closer to sustainability.

关键词： Plasticizer Castor oil Epoxidized fatty acid methyl ester Migration resistance Polyvinyl chloride Artificial material

基于文献计量分析的国际视角下灾难医学热点问题研究

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灾害学 2022年第3期37卷 140-147页

作者：樊毫军靳红霞卢鲁天津大学应急医学研究院天津300072

灾难医学是一门交叉学科,指利用医学、管理、信息、工程等知识,及时为受灾群众提供医疗服务。灾难的频繁发生促使了灾难医学的发展,随着灾难医学相关的研究文献越来越多,采用文献计量学的方法探索灾难医学领域的领先参与者以及热点研究... 详细信息

灾难医学是一门交叉学科,指利用医学、管理、信息、工程等知识,及时为受灾群众提供医疗服务。灾难的频繁发生促使了灾难医学的发展,随着灾难医学相关的研究文献越来越多,采用文献计量学的方法探索灾难医学领域的领先参与者以及热点研究方向,总结灾难医学的发展特点。该文收集了Web of Science Core Collection数据库中与灾难医学相关的1858篇文章,使用Bibliometrix、VOSviewer、CiteSpace分析文献计量指标,包括国家、机构和作者的贡献以及研究热点,结果表明:欧美国家、中国、日本在灾难医学领域有较高的影响力;灾难医学的研究方向多种多样,灾难医学管理这一研究方向的生命力很强,除此以外,还有灾害护理、灾难医学课程教育、心理健康、生理健康、灾后影响、灾难流行病等研究方向。未来,中国灾难医学的发展还需要提高重视程度,加强全球合作,重视科研创新,才能取得长足进步。

关键词：灾难医学文献计量学医学救援医学管理