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Research on Bast Fiber Extracted from the White Bark of Three Species in the Genus Broussonetia

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chinese Journal of Polymer Science 2024年第6期42卷 729-738页

作者： Shan-Shan Jin Si-Nong Wang Yan-Yan Huang Jing-Yu Zhang Peng Liu Hui Yu Hong-Dong Zhang Yu-Liang Yang institute for preservation and conservation of chinese ancient books Fudan University LibraryFudan UniversityShanghai200433China State key laboratory of Molecular Engineering of polymers Department of Macromolecular ScienceFudan UniversityShanghai200433China

Against the backdrop of a global paper resource shortage,there is a growing need to identify fast-growing tree species capable of producing long-lasting *** plant species namely Broussonetia kazinoki,Broussonetia papyrifera and hybrid paper mulberry,belong to the Broussonetia genus,were collected from China to study their white bark suitability for pulp and *** chemical composition revealed that the holocellulose content in Broussonetia kazinoki and Broussonetia papyrifera was more than 80%.The molecular weight distribution of several holocellulose/α-cellulose is observed by GPC,which allows us to better observe the changes of various components on the molecular *** yield,lignin,whiteness,and molecular weight of the pulps obtained by NaOH treatment were *** microscope was used to characterize the fiber length-width ratio and ***,the improvement of the fiber rigidity method based on the Kratky-Porod chain model makes it more theoretical and further reveals the influencing factors of fiber *** study demonstrates the high potentiality of these three species for papermaking applications.

关键词： Broussonetia genus Cellulose Alkaline pulping Kratky-Porod chain model Fiber rigidity

Physical Condition of Five Historical Land Deeds and Implications for Land Deed Paper conservation

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Paper And Biomaterials 2023年第3期8卷 21-28页

作者： Xue Li Guanghui Yang Shanghai Museum Shanghai200003China institute for preservation and conservation of chinese ancient books Fudan UniversityShanghai200433China

This work presents five land deeds(S1-S5)collected by the Deng family,the land deed papers were produced by the Deng family,and the content was about the transaction of the Deng family paper production ***,whiteness,pH value,and fiber morphology of the deed papers were measured and analyzed,and the physical condition of the deeds was *** results showed S1 and S3 were severely damaged,S2 and S4 were moderately damaged,and S5 was mildly *** abovementioned deeds are physical witnesses to the history of Deng papermaking,and have high value as cultural relics and historical *** is hopefully this study could be used to inform scientific restoration plans,and provide a reference for the collection and protection of land deeds.

关键词： land deeds papermaking paper conservation

Nanocomposites composed of modified natural polymer and inorganic nanomaterial for safe,high-efficiency,multifunctional protection of paper-based relics

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Science China(Technological Sciences) 2023年第8期66卷 2225-2236页

作者： ZHAO HaiBo LIU Peng HUANG YanYan ZHANG HongBin institute for preservation and conservation of chinese ancient books Fudan University LibraryFudan UniversityShanghai200433China State Key Laboratory of Biobased Material and Green Papermaking Qilu University of TechnologyShandong Academy of SciencesJinan 250353China

Paper-based relics as important carriers of human history and civilization have been facing severe damage problems,and their protection is a major project for cultural heritage *** far,safe,high-efficiency,and multifunctional protection materials are still urgent to be ***,through screening a series of alkaline nano-oxides and cleverly combining the advantages of modified natural polymer(quaternized chitosan)and inorganic nanomaterials(Zn O),we successfully prepared their functional nanocomposites with multiple properties and pioneered their smart application for multifunctional protection of paper *** spraying loads,this kind of nanocomposites can effectively and safely inhibit the acid degradation of paper relics and long-term maintain a natural or weak basic state even under harsh accelerated aging ***,the coating of nanocomposites does not change the chromatic aberration but partially improves the ***,the mechanical properties of paper relics are reinforced up to more than one time for all-around tensile strength,folding endurance,and tearing *** is worth noting that the usage of nanocomposites can avoid the discoloration or fading of p H-sensitive pigments/dyes and prevent the blue/red inks from *** integrating the anti-microorganism effects of the two components,the nanocomposites have exhibited a broad antimicrobial capacity for both fungi(e.g.,Plectosphaerella cucumerina and Aspergillus unguis)and bacteria(e.g.,Staphylococcus aureus).The acquired knowledge not only represents an advanced step for designing functionalized inorganic/polymer nanocomposite but also sheds light on the multi-functional integrated protection of paperbased relics.

关键词： composite material cultural relics protection multifunctional application safe deacidification anti-microorganism

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Seed-induced synthesis of functional MFI zeolite materials:Method development,crystallization mechanisms,and catalytic properties

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Frontiers of Chemical Science and Engineering 2020年第2期14卷 143-158页

作者： Zhaoqi Ye Hongbin Zhang Yahong Zhang Yi Tang Department of Chemistry Shanghai Key Laboratory of Molecular Catalysis and Innovative MaterialsLaboratory of Advanced Materialsand Collaborative Innovation Center of Chemistry for Energy MaterialsFudan UniversityShanghai 200433China institute for preservation of chinese ancient books Fudan University LibraryFudan UniversityShanghai 200433China

As an important zeolite material,MFI zeolites,as well as their controllable synthesis,are of great interest in both basic and applied *** the developed synthetic approaches,the seed-induced method has gradually evolved into a facile,low-cost,and even green alternative to give zeolites the desirable physicochemical *** this review,we briefly summarize the development of seed-induced syntheses of diverse functional MFI zeolites,where the“living”seed crystals not only direct the formation of zeolitic framework but also function as special“templates”or“units”to fine-tune the zeolite materials with diverse sizes,shapes,compositions,morphologies and pore ***,on the basis of their structural features and crystallization behaviors in seed-induced synthesis,we reveal the roles of seeds and discuss the related crystallization mechanisms including both classical and non-classical *** also want to guide readers to investigate the structure-performance relationships between these functional MFI zeolite catalysts and suitable catalytic reactions.

关键词： seed-induced synthesis MFI zeolite synthesis mechanism catalytic property

FTIR Spectroscopy in Cultural Heritage Studies: Non-destructive Analysis of chinese Handmade Papers

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Chemical Research in chinese Universities 2019年第4期35卷 586-591页

作者： YAN Yueer WEN Chenqing JIN Ming DUAN Lian ZHANG Ruohong LUO Chan XIAO Jianfang YE Zhaoqi GAO Boxu LIU Peng TANG Yi institute for preservation and conservation of chinese ancient books Fudan University Library Fudan University Shanghai 200433 P. R. China Department of Chemistry Fudan University Shanghai 200433 P. R. China Shanghai institute of Quality Inspection and Technical Research Shanghai 201114 P. R. China History institute Shanghai Academy of Social Sciences Shanghai 200235 P. R. China

chinese handmade papers have been the carriers of paper-based documents, paintings and calligraphies, which are of great importance for historical and cultural heritage studies. This research developed the attenuated total reflectance-Fourier transform infrared(ATR-FTIR) spectroscopic technique for the analysis of chinese handmade papers. The test was applied to chinese handmade papers taken from bark, hemp and bamboo groups, followed by papers from ancient books and arts collected in library and museum. Our study indicated tliat FTIR was an efficient analytical method to identify fiber types of library/museum papers of unknown origin. Moreover, information about degree of crystallinity and state of deterioration of cellulosic fibers was learned from FTIR spectra. This research provides a non-destnictive method to study the molecular structure of cellulosic fibers, and guides tlie selection of appropriate chinese handmade papers for the restoration of cultural heritage objects.

关键词： Attenuated total reflectance-Fourier transform iiifrared(ATR-FTIR) spectrum Cliinese handmade paper Fiber identification Crystallinity State of deterioration

Development of Mg-Al LDH and LDO as novel protective materials for deacidification of paper-based relics

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chinese Chemical Letters 2024年第9期35卷 475-480页

作者： Sinong Wang Shanshan Jin Xue Yang Yanyan Huang Peng Liu Yi Tang Yuliang Yang institute for preservation and conservation of chinese ancient books Fudan University LibraryFudan UniversityShanghai 200433China Department of Chemistry Shanghai Key Laboratory of Molecular Catalysis and Innovative MaterialsCollaborative Innovation Centre of Chemistry for Energy MaterialsFudan UniversityShanghai 200433China State Key Laboratory of Molecular Engineering of Polymers Department of Macromolecular ScienceFudan UniversityShanghai 200433China Key Laboratory of Pulp and Paper Science&Technology of Ministry of Education Qilu University of Technology(Shandong Academy of Sciences)Ji’nan 250353China

Acidification of paper-based relics is a common problem,leading to their degradation and eventual *** deacidification is highly dependent on a limited variety of alkaline materials,and the development of new materials that are safe,efficient and easy-to-prepare is highly demanded to ensure a high level of safety and effective protection of paper-based *** study proposes the introduction of layered double hydroxide(LDH)and its calcined product,mixed metal oxide(layered double oxide(LDO)),as innovative protective materials for the deacidification of paper with varying levels of *** results demonstrate that treatment with Mg-Al LDH/LDO can effectively modify the p H of acidic paper(e.g.,pH~4.0–6.4)to a neutral or weakly basic state,maintaining this desirable p H range even under long-term accelerated aging ***,LDH proves to be well-suited for the protection of slightly acidified paper(e.g.,pH>5.5),while LDO serves as an especially option for the deacidification of severely acidified paper(e.g.,pH≤5.5).During aqueous deacidification,due to the memory effect of the LDH-based materials,LDO is converted to rehydrated LDH,which creates a mild and appropriate alkaline retention in the paper,avoiding damage caused by strong alkalinity such as cellulose degradation and pigment fading during subsequent long-term natural preservation of the ***,Mg-Al LDH/LDO materials also exhibit flame-retardant and bacteriostatic *** opens up opportunities for the safe,efficient and multifunctional protection of acidified paper-based relics.

关键词： Layered double hydroxide Layered double oxide Structural memory effect Paper protection Deacidification

Corrosion mechanism of ceramic glaze from the Yangtze EstuaryⅡ

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Science China(Technological Sciences) 2023年第8期66卷 2246-2257页

作者： YU WenDi ZHAO Luo ZHAI Yang ZHAO Jing ZHANG KeXin GE Yan LI Qiang ZHAO Meng HUANG JiZhong LUO HongJie Shanghai institute of Ceramics Chinese Academy of SciencesShanghai 200050China Shanghai Cultural Heritage conservation and Research Centre Shanghai 200031China Shanghai Museum Shanghai 200003China institute for the conservation of Cultural Heritage Shanghai UniversityShanghai 200444China

ancient lead-glazed ceramics frequently corrode physically,chemically,and biologically when buried in soil,submerged in water,or exposed to *** comparison to the other two environments,relatively little research has been conducted on how leadglazed ceramics deteriorate in the water *** lead-glazed ceramic samples from the Yangtze EstuaryⅡwere examined for their micromorphology and structural composition using scanning electron microscopy-energy spectrum analysis,micro-area X-ray diffraction analysis,fluorescence microanalysis,and Fourier infrared spectroscopy *** results demonstrate the formation of deposits of PbCO_(3),Pb(OH)Cl,and Cu FeS_(2)and corrosion pits and fractures on the glaze layer *** to the corrosion phenomenon,the lead glaze layers of ceramics mainly underwent chemical and microbial corrosion in water,and the corrosion process of the lead glaze was expounded and *** research results deepen the understanding of the corrosion mechanism of lead-glazed ceramics,which is of great significance for the study of the conservation of lead-glazed ceramics and other types of ceramic relics and can also provide a reference for the long-term preservation of contemporary silicate products.

关键词： Yangtze Estuary II underwater ceramics lead glaze corrosion mechanism

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Comparison of the Effects of Traditional Box-Moxibustion and Eletrothermal Bian-Stone Moxibustion on Volume of Blood Flow in the Skin

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Journal of Traditional chinese Medicine 2011年第1期31卷 44-45页

作者：黄涛王瑞红黄鑫田玉英张维波 Hossein Ayali 王广军张宇沁 Genhard Litscher 王璐 institute of Acupuncture and Moxibustion China Academy of Chinese Medical Sciences Publishing House of chinese ancient Medical books China Academy of Chinese Medical Sciences College of Acupuncture and Moxibustion Beijing University of Chinese Medicine Biomedical Engineering Department of Austria Graz University

Objective: To investigate and compare the effects of Electrothermal Bian-stone moxibustion and traditional box-moxibustion on capillary blood perfusion in the body surface. Methods: Twenty healthy subjects, 18 females and 2 males, aged averagely 36 years, were enrolled in this experiment. The traditional box-moxibustion and electrothermal Bian-stone moxibustion were respectively given on the hypogastrium around Guanyuan (CV 4), and the changes of local capillary blood perfusion in the body surface were investigated with Laser Doppler Perfusion Imaging (LDPI). Results:The traditional box-moxibustion was superior to the electrothermal Bian-stone moxibustion in the transient increasing effect in whole body and the long-term increasing effect in the local area of moxibustion on capillary blood perfusion; but for both methods, the increasing effect on the capillary blood perfusion in the local area of moxibustion was same. Conclusion: Electrothermal Bian-stone moxibustion can not completely take the place of the traditional box-moxibustion; but for some disorders with local pain, they possibly have the same effects.

关键词： box-moxibustion electrothermal Bian-stone moxibustion LDPI Guanyuan (CV4) dysmenorrhea

Advances in ethnopharmacology,phytochemistry and pharmacology of Erigerontis Herba and its chinese medicine prescriptions

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Traditional Medicine Research 2025年第1期10卷 44-61页

作者： Yang Zhou Yuan-Yan Huang Ding-Yue Shang Ying Chen Meng Tian Cheng-Yu Jin Xin Lu Bing-Chun Yan Han-Qing Pang institute of Translational Medicine School of MedicineYangzhou UniversityYangzhou 225009China Jiangsu Key Laboratory of Integrated Traditional chinese and Western Medicine for Prevention and Treatment of Senile Diseases Yangzhou UniversityYangzhou 225009China School of Medicine Nanjing University of Chinese MedicineNanjing 210023China State Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources Guangxi Normal UniversityGuiling 541004China.

Erigerontis Herba(EH),the dried whole plant of Erigeron breviscapus,is well-known for circulating blood,activating meridians to alleviate pain,expelling wind,and clearing away *** has been extensively utilized in southern China for the treatment of stroke hemiplegia,chest stuffiness and pains,rheumatic arthralgia,headache,and *** review focuses on the botany,ethnopharmacology,phytochemistry,pharmacology and toxicity of EH and its related prescriptions to offer new insights for prospective research of *** information about EH was retrieved from ancient records and books,PubMed,China National Knowledge Infrastructure,chinese Pharmacopoeia,Web of Science,Doctoral and Master’s Theses,and various electronic *** is a member of Compositae family and is mainly grown in southern *** chinese medicine records that EH has the effects of circulating blood and removing blood stasis,expelling wind,and removing cold,as well as relieving rigidity of muscle and relieving *** now,nearly 200 ingredients have been characterized from EH,including flavonoids,caffeoyls,aromatic acids,coumarins,pentacyclic terpenoids,volatile oil and other *** extracts,EH related prescriptions(Dengzhan Xixin injection,Dengzhan Shengmai capsules,etc.)or compounds(scutellarin,scutellarein,etc.)possessed obvious therapeutic effects of ischemic stroke,cerebral hemorrhage,myocardial infarction,Alzheimer’s disease,diabetes and its complications,gastric cancer,bone,and joint degenerative ***,the major active compound of EH,has been used as a quality *** no obvious toxicity of EH has been *** to its traditional applications,ethnopharmacology,phytochemistry,pharmacology,and toxicity,EH was applied as a valuable herb for clinical application in food and medicine *** several compounds have been shown to possess diverse biological activities,the underlying mechanisms of their actions remain *** fully exploi

关键词： Erigeron breviscapus traditional applications ethnopharmacology phytochemistry pharmacology