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Zwitterionic comb-like lipid polymers encapsulating linalool for increasing the fragrance retention time

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Chinese Chemical Letters 2021年第1期32卷 573-576页

作者： Tianlu Zhang Zhiguo Lu Xiangyu wang Jie Shen Jianze wang Yunwei Niu zuobing Xiao Xin Zhang State Key Laboratory of Biochemical Engineering Institute of Process EngineeringChinese Academy of SciencesBeijing 100190China University of Chinese Academy of Sciences Beijing 100049China Shanghai Research Institute of Fragrance and Flavor Industry Shanghai 200232China School of Perfume and Aroma Technology Shanghai Institute of TechnologyShanghai 200233China

Fragrances are widely used in cosmetics,apparel and ***,the rapid evaporation of the aro ma shortens the useful life of the aromatic ***,improving the fragrance retention time of aromatic products and prolonging the service life of aromatic products are the key scientific problems that need to be solved in current aromatic *** this study,zwitterionic comb-like lipid polymers were synthesized to encapsulate the fragrance molecule *** results showed that the zwitterionic comb lipid molecules were capable of encapsulating more linalool than linear lipid *** the same time,the zwitterionic comb-like lipid molecules also limited the slow release rate of the aroma,thereby increasing the fragrance retention time of the nano-fragrance.

关键词： Linalool Zwitterionic comb-like lipid polymers Nano-fragrance Fragrance retention time Slow release

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浅谈汽车车门闭合力控制模式

汽车实用技术 2019年第3期45卷 154-155页

作者：王作兵张光银陈云涛刘广辉孙艳龙全兵何卓浙江零跑科技有限公司浙江金华321000 奇瑞商用车(安徽)有限公司安徽芜湖241006 奇瑞汽车股份有限公司安徽芜湖241009

车门闭合力是乘用车车门系统性能的重要参数,是以车门在不同速度下是否可靠关闭来表征车门系统的性能。在乘用车整车评测中,通常由手产生车门的初始速度,然后检测车门即将关闭前的最终速度值,并以车门可靠关闭所需要的最小速度和车门关... 详细信息

车门闭合力是乘用车车门系统性能的重要参数,是以车门在不同速度下是否可靠关闭来表征车门系统的性能。在乘用车整车评测中,通常由手产生车门的初始速度,然后检测车门即将关闭前的最终速度值,并以车门可靠关闭所需要的最小速度和车门关闭消耗的最小能量来表征车门综合性能,一般要求为0.8-1.5m/s,我公司要求为0.8-1.2m/s。

关键词：车门闭合力闭合力因素测量原理控制点

Cationic and temperature-sensitive liposomes loaded with eugenol for the application to silk

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Chinese Chemical Letters 2020年第12期31卷 3139-3142页

作者： Zhiguo Lu Xiangyu wang Tianlu Zhang Luyao Zhang Jun Yang Yan Li Jie Shen Jianze wang Yunwei Niu zuobing Xiao Guiying Liu Xin Zhang State Key Laboratory of Biochemical Engineering Institute of Process EngineeringChinese Academy of SciencesBeijing 100190China Department of Pediatrics Capital Medical University Affiliated Beijing Anzhen HospitalBeijing 100029China School of Chemical Engineering University of Chinese Academy of SciencesBeijing 100049China Shanghai Research Institute of Fragrance and Flavor Industry Shanghai 200232China School of Perfume and Aroma Technology Shanghai Institute of TechnologyShanghai 200233China

Silk has been widely used in the clothing industry due to their soft and smooth features,good biocompatibility,good heat dissipation,warmth and ultraviolet *** application of fragrance to silk can significantly improve the performance of ***,there are two key scientific problems that need to be solved:slowing down the release rate of fragrances and increasing the scent lasting time of *** this study,cationic and temperature-sensitive liposomes were designed and prepared to encapsulate *** fragrance-loaded liposomes significantly slowed down the release rate of the fragrance and controlled the release rate of the fragrance in a thermo-sensitive *** liposomes adhered to the silk through electrostatic adsorption *** positive charge on the fragranceloaded liposomes neutralized much negative charge on silk and thereby increasing the adhesion efficiency.

关键词： Eugenol Silk Cationic and temperature-sensitive liposomes Slow release of fragrance Controlled release of fragrance

Preparation of mesoporous silica nanoparticle with tunable pore diameters for encapsulating and slowly releasing eugenol

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Chinese Chemical Letters 2021年第5期32卷 1755-1758页

作者： Tianlu Zhang Zhiguo Lu Jianze wang Jie Shen Qiulian Hao Yan Li Jun Yang Yunwei Niu zuobing Xiao Lei Chen Xin Zhang State Key Laboratory of Biochemical Engineering Institute of Process EngineeringChinese Academy of SciencesBeijing 100190China Department of Obstetrics and Gynecology Navy General Hospital of People Liberation ArmyBeijing 100048China School of Chemical Engineering University of Chinese Academy of SciencesBeijing 100049China Shanghai Research Institute of Fragrance and Flavor Industry Shanghai 200232China School of Perfume and Aroma Technology Shanghai Institute of TechnologyShanghai 200233China

Fragrances are frequently added to a variety of products,including food,cosmetics and health ***,the high volatility and instability of essence limit its application in some *** this study,mesoporous silica nanoparticles(MSNs) were prepared to encapsulate eugenol,which could reduce the volatilization of the fragrance molecules.A facile approach was presented to synthesize MSNs with three different pore diameters for encapsulating *** addition,the properties of MSNs including mean particle size,morphology,encapsulating efficiency and release tendency were charac *** showed that the larger the pore diameters of MSNs,the more aromatic molecules were ***,the release mechanism was described as the smaller the pore diameters of MSNs,the slower the release of eugenol.

关键词： Eugenol Mesoporous silica nanoparticles Nano-fragrance Slow release of fragrance

Controllable Fragrance Release Mediated by Spontaneous Hydrogen Bonding with POSS–Thiourea Derivatives

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CCS Chemistry 2020年第6期2卷 478-487页

作者： Chenwei Xue Ming Liu Zhi-Ang Zhang Jianwei Han Chengyun wang Limin wang zuobing Xiao Wei-Hong Zhu Shanghai Key Laboratory of Functional Materials Chemistry Key Laboratory for Advanced Materials and Institute of Fine ChemicalsJoint International Research Laboratory of Precision Chemistry and Molecular EngineeringFeringa Nobel Prize Scientist Joint Research CenterFrontiers Science Center for Materiobiology and Dynamic ChemistrySchool of Chemistry and Molecular EngineeringEast China University of Science and TechnologyShanghai 200237 School of Perfume and Aroma Technology Shanghai Institute of TechnologyShanghai 201418

The purpose of achieving the long-lasting fragrance perception leads to nanocarrier-based profragrances in perfume ***,we report a family of novel profragrance systems based on polyhedral oligomeric silsesquioxane(POSS)derivatized thioureas(POSS thioureas)that enable linkage of volatile carbonyl fragrances with the spontaneous formation of fragile hydrogen *** profragrance platform addresses the dilemma of the volatile nature of aroma-materials on the one hand,and the desired long-lasting effects on the *** releasing performance as profragrances is investigated by headspace solid-phase microextraction(SPME)in combination with gas chromatography(GC)analysis under water as the external humidity stimulus,indicating that the fragrance concentration released from the POSS–thiourea-based profragrance is up to four times higher than the neat reference of the corresponding perfume ***,deposition of the novel profragrance system onto wallpaper results in excellent retentive capacity for volatile *** the low essential toxicity,the POSS–thiourea system has been demonstrated as a suitable profragrance for practical application to perfume delivery.

关键词： POSS thiourea hydrogen bond spontaneous formation profragrance precursor controllable release

Reactive nano-essential oils for sustained release of essential oils and application to wallpaper

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Chinese Chemical Letters 2022年第1期33卷 320-323页

作者： Qiulian Hao Huan Peng Ruichen Zhao Jianze wang Zhiguo Lu Jingwen wang Jie Shen Yunwei Niu zuobing Xiao Guiying Liu Jifu Hao Xin Zhang School of Pharmaceutical Science Shandong First Medical University&Shandong Academy of Medical SciencesTaian 271016China State Key Laboratory of Biochemical Engineering Institute of Process EngineeringChinese Academy of SciencesBeijing 100190China Department of Pediatrics Capital Medical University Affiliated Beijing Anzhen HospitalBeijing 100029China School of Chemical Engineering University of Chinese Academy of SciencesBeijing 100049China Shanghai Research Institute of Fragrance and Flavor Industry Shanghai 200232China School of Perfume and Aroma Technology Shanghai Institute of TechnologyShanghai 200233China

Essential oils are a volatile and aromatic substance with a variety of active biological ***,the excessive volatility and inconvenience of the use of essential oils limit their *** this study,we developed a reactive mesoporous silica nanoparticle(rMSNs)based on cyanuric chloride modification for essential oil encapsulation and commodity *** large pore volume and specific surface area of rMSNs facilitate the nanoparticles adhering to a large amount of essential oil and achieve the sustained release of essential oil,thus prolonging the fragrance retention time of essential *** reactive nanoessential oils can form covalent bonds with the wallpaper,thereby remarkably improving the adhesion of the reactive nano-essential oils on the wallpaper and preventing the reactive nano-essential oil from deadhering from the *** active nano essential oil simultaneously overcomes the intense volatility of the essential oil and inconvenience in use,has a simple preparation process and low cost,and has great application potential.

关键词： Reactive nano-essential oils Reactive mesoporous silica nanoparticles Slow-release of essential oils Application to wallpaper Covalent bonds

Preparation of hollow mesoporous silica nanorods for encapsulating and slowly releasing eugenol

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Chinese Chemical Letters 2020年第12期31卷 3135-3138页

作者： Tianlu Zhang Zhiguo Lu Luyao Zhang Yan Li Jun Yang Jie Shen Jianze wang Yunwei Niu zuobing Xiao Lei Chen Xin Zhang State Key Laboratory of Biochemical Engineering Institute of Process EngineeringChinese Academy of SciencesBeijing 100190China Department of Obstetrics and Gynecology Navy General Hospital of People Liberation ArmyBeijing 100048China School of Chemical Engineering University of Chinese Academy of SciencesBeijing 100049China Shanghai Research Institute of Fragrance and Flavor Industry Shanghai 200232China School of Perfume and Aroma Technology Shanghai Institute of TechnologyShanghai 200233China

Fragrances are widely used in many aspects of our *** cannot only make people happy,but also treat many ***,excessively fast evaporation rate is one of the main obstacles to the use of *** this study,mesoporous silica nanorods(MSNRs)and hollow mesoporous silica nanorods(HMSNRs)were prepared to encapsulate *** two nano-fragrances were named eugenol@MSNRs and eugenol@HMSNRs,*** morphologies,size,interior structures and pore performances of MSNRs and ***,the performances of encapsulation and fragrance release of eugenol@MSNRs and eugenol@HMSNRs were compared and *** results showed that eugenol@HMSNRs encapsulated more fragrance and were faster to encapsulate compared with eugenol@*** the release rates of eugenol from eugenol@MSNRs and eugenol@HMSNRs were *** the eugenol was released from eugenol@MSNRs more slowly.

关键词： Eugenol Hollow mesoporous silica nanorods Mesoporous silica nanorods Nano-fragrance Slow release of fragrance

Reactive mesoporous silica nanoparticles loaded with limonene for improving physical and mental health of mice at simulated microgravity condition

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Bioactive Materials 2020年第4期5卷 1127-1137页

作者： Zhiguo Lu Jianze wang Lina Qu Guanghan Kan Tianlu Zhang Jie Shen Yan Li Jun Yang Yunwei Niu zuobing Xiao Yinghui Li Xin Zhang State Key Laboratory of Biochemical Engineering Institute of Process EngineeringChinese Academy of SciencesBeijing100190PR China State Key Laboratory of Space Medicine Fundamentals and Application China Astronaut Research and Training CenterBeijing100094China School of Chemical Engineering University of Chinese Academy of SciencesBeijing100049PR China Shanghai Research Institute of Fragrance and Flavor Industry Shanghai200232PR China School of Perfume and Aroma Technology Shanghai Institute of TechnologyShanghai200233PR China

Astronauts are under high stress for a long time because of the microgravity condition,which leads to anxiety,affects their learning and memory abilities,and seriously impairs the health of *** can improve the physical and mental health of astronauts in a way that moisturizes them softly and ***,the strong volatility of fragrances and inconvenience of aroma treatment greatly limit their application in the field of *** this study,reactive mesoporous silica nanoparticles were prepared to encapsulate and slowly release *** limonene loaded nanoparticles were named limonene@mesoporous silica nanoparticles-cyanuric chloride(LE@MSNs-CYC).LE@MSNs-CYC were then applied to wallpaper to improve the convenience of ***@MSNs-CYC could chemically react with the wallpaper,thus firmly adsorbed on the *** the following,the mice were treated with hindlimb unloading(HU)to simulate a microgravity *** results showed that 28-day HU led to an increase in the level of anxiety and declines in learning,memory,and physical health in ***@MSNs-CYC showed significant relief effects on anxiety,learning,memory,and physical health of HU treated ***,the molecular mechanisms were explored by hypothalamic-pituitary-adrenal axis related hormones,immune-related cytokines,learning,and memory-related neurotransmitters and proteins.

关键词： Reactive mesoporous silica nanoparticles Slow release of limonene Simulated microgravity condition Improvement of physical health Improvement of mental health

Ventriculostomy-Related Infection Risk of Prolonged ICU Stay:A Prospective Cohort Study

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Ventriculostomy-Related Infection Risk of Prolonged ICU Stay...