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bacterial cellulose-based dressings with photothermal bactericidal activity and pro-angiogenic ability for infected wound healing

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Journal of Materials Science & Technology 2023年第29期160卷 76-85页

作者： Yan Wu Dongxu Jia Kunyan Lu Haixin Zhang Chunxia Liu Yuancheng Lin Jingjing Cheng Yi Zou Hu Xu Hong Chen Yanxia Zhang Qian Yu State and Local Joint Engineering Laboratory for Novel Functional Polymeric Materials College of ChemistryChemical Engineering and Materials ScienceSoochow UniversitySuzhou 215123China Department of Cardiovascular Surgery of the First Affiliated Hospital and Institute for Cardiovascular Science Suzhou Medical College of Soochow UniversitySoochow UniversitySuzhou 215000China

For most traditional wound dressings,it is challenging to simultaneously eliminate bacteria and promote angiogenesis to accelerate the healing process of bacteria-infected *** this work,we develop a multifunctional dressing based on bacterial cellulose(BC)deposited with a tannic acid/Cu^(2+)ion/Mg^(2+)ion(TCM)complex ***,the TCM complex exhibits robust interfacial adhesion to modify BC and good photothermal properties to effectively eradicate bacteria in the wound area under near-infrared(NIR)*** individual components of the TCM complex have several advantageous features for wound healing,such as antibacterial ability and negligible cytotoxicity;in particular,the released Cu^(2+)and Mg^(2+)ions are favorable for the proliferation,migration,and tube formation of endothelial cells in *** results of in vivo experiments demonstrated that with the assistance of NIR irradiation,this composite dressing is more effective than traditional gauze or pristine BC dressing in promotion of angiogenesis and collagen deposition without causing remarkable inflammation,thereby accelerating the healing process of bacteria-infected full-thickness skin *** work thus provides a simple and facile way to fabricate multifunctional BC-based dressings that could be potentially used for treating infected wounds.

关键词： bacterial cellulose Metal-phenolic network Photothermal therapy Antibacterial Angiogenesis Wound dressing

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bacterial cellulose Composite Solid Polymer Electrolyte With High Tensile Strength and Lithium Dendrite Inhibition for Long Life Battery

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Energy & Environmental Materials 2021年第3期4卷 434-443页

作者： Yuhan Li Zongjie Sun Dongyu Liu Shiyao Lu Fei Li Guoxin Gao Min Zhu Mingtao Li Yanfeng Zhang Huaitian Bu Zhiyu Jia Shujiang Ding Department of Applied Chemistry School of ChemistryXi’an Key Laboratory of Sustainable Energy Materials ChemistryMOE Key Laboratory for Nonequilibrium Synthesis and Modulation of Condensed MatterState Key Laboratory of Electrical Insulation and Power EquipmentXi’an Jiaotong UniversityXi’an 710049China International Research Center for Renewable Energy State Key Laboratory of Multiphase Flow in Power EngineeringXi’an Jiaotong UniversityXi’an 710049China Department of Materials and Nanotechnology SINTEF IndustryForskningsveien 1Oslo 0373Norway School of Chemistry and Chemical Engineering MOE Key Laboratory of Cluster ScienceBeijing Institute of TechnologyBeijing 100081China

The development of metallic lithium anode is restrained by lithium dendrite growth during *** solid polymer electrolyte with high mechanical strength and lithium ion conductivity could be applied to inhibit lithium dendrite *** prepare the high-performance solid polymer electrolyte,the environment-friendly and cheap bacterial cellulose(BC)is used as filler incorporating with PEO-based electrolyte owing to good mechanical properties and Li salts ***/Li TFSI/BC composite solid polymer electrolytes(CSPE)are prepared easily by aqueous mixing in *** lithium ion transference number of PEO/Li TFSI/BC CSPE is 0.57,which is higher than PEO/Li TFSI solid polymer electrolyte(SPE)(0.409).The PEO/Li TFSI/BC CSPE exhibits larger tensile strength(4.43 MPa)than PEO/Li TFSI SPE(1.34 MPa).The electrochemical window of composite electrolyte is widened 1.43 V by adding *** functional theory calculations indicate that flex of PEO chains around Li atoms is suppressed,suggesting the enhanced lithium ion *** molecular orbitals results suggest that an unfavorable intermolecular charge transfer lead to achieve higher potential for BC composite *** solid-state Li metal battery with PEO/Li TFSI/BC CSPE delivers longer cycle life for 600 cycles than PEO/Li TFSI SPE battery(50 cycles).Li symmetrical battery using PEO/Li TFSI/BC CSPE could be stable for 1160 h.

关键词： all solid-state battery bacterial cellulose composite polymer electrolyte DFT calculations HOMO and LUMO

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bacterial cellulose/Zwitterionic Dual-network Porous Gel Polymer Electrolytes with High Ionic Conductivity

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Journal of Wuhan University of Technology(Materials Science) 2024年第3期39卷 596-605页

作者：侯朝霞 WANG Haoran QU Chenying Liaoning Province Key Laboratory of Micro-nano Materials Research and Development School of Mechanical EngineeringShenyang UniversityShenyang 110044China

bacterial cellulose(BC)was innovatively combined with zwitterionic copolymer acrylamide and sulfobetaine methacrylic acid ester[P(AM-co-SBMA)]to build a dual-network porous structure gel polymer electrolytes(GPEs)with high ionic *** dual network structure BC/P(AM-co-SBMA)gels were formed by a simple one-step polymerization *** results show that ionic conductivity of BC/P(AM-co-SBMA)GPEs at the room temperature are 3.2×10^(-2) S/cm@1 M H_(2)SO_(4),4.5×10^(-2) S/cm@4 M KOH,and 3.6×10^(-2) S/cm@1 M NaCl,*** active carbon(AC)as the electrodes,BC/P(AM-co-SBMA)GPEs as both separator and electrolyte matrix,and 4 M KOH as the electrolyte,a symmetric solid supercapacitors(SSC)(AC-GPE-KOH)was assembled and *** specific capacitance of AC electrode is 173 F/g and remains 95.0%of the initial value after 5000 cycles and 86.2%after 10,000 cycles.

关键词： bacterial cellulose zwitterion gel polymer electrolytes ionic conductivity dual-network structure

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bacterial cellulose-Based Janus Films with Radiative Cooling and Solar Heating Properties for All-Season Thermal Management

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Chinese Journal of Chemistry 2023年第20期41卷 2611-2618页

作者： Shukuan Shi Cristian Valenzuela Yanzhao Yang Yuan Liu Binxuan Li Ling Wang Wei Feng School of Materials Science and Engineering Tianjin UniversityTianjin300350 China Tianjin Key Laboratory of Composite and Functional Materials Tianjin300350 China

Advanced radiative cooling materials with both heating and cooling mode is of pivotal importance for all-season energy-saving in *** this work,we report the design and fabrication of bacterial cellulose-based Janus films(J-BC)with radiative cooling and solar heating properties,which were developed by two-step vacuum-assisted filtration of modified MXene-doped bacterial cellulose and modified silicon nitride(Si_(3)N_(4))-doped bacterial cellulose,followed by hot-pressing and drying *** as-prepared J-BC films show a unique Janus structure where modified MXene nanosheets and cellulose nanofibers are on the bottom surface,and modified silicon nitride(Si_(3)N_(4))nanoparticles and cellulose nanofibers are on the top *** radiative cooling effect of J-BC films is enabled by the Si_(3)N_(4)-doped bacterial cellulose due to the high mid-infrared emissivity of Si_(3)N_(4) nanoparticles,which shows a high solar reflection of~98.1%and high emissivity of~93.6%in the atmospheric transparency window(8-13μm).Thanks to the enhanced photothermal conversion of the modified MXene nanosheets,a reduced solar reflection(6.6%)and relatively low thermal emissivity in the atmospheric window(71.4%)are achieved,making sure the solar heating effect of J-BC *** the outdoor tests,J-BC films achieve a sub-ambient temperature drop of~3.8°C and an above-ambient temperature rise of~14.2°*** prediction demonstrated that the J-BC films with dual modes have great potential of all-season energy saving for buildings and a corresponding energy-saving map in China is also *** work disclosed herein can provide an avenue for the shaping of advanced radiative cooling materials for emerging applications of personal thermal management,sustainable energy-efficient buildings,and beyond.

关键词： bacterial cellulose MXene nanosheets Radiative cooling Solar heating Thermal management Nanostructures Nanoparticles Thin films

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bacterial cellulose cookbook: A systematic review on sustainable and cost-effective substrates

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Journal of Bioresources and Bioproducts 2024年第4期9卷 379-409页

作者： Luis Quijano Raquel Rodrigues Dagmar Fischer Jorge David Tovar-Castro Alice Payne Laura Navone Yating Hu Hao Yan Phitsanu Pinmanee Edgar Poon Jinghe Yang Eve Barro Faculty of Science Queensland University of TechnologyQueensland 4000Australia ARC Centre of Excellence in Synthetic Biology Queensland 4000Australia Faculty of Creative Industries Education and Social JusticeQueensland University of TechnologyQueensland 4059Australia Independent Researcher Portugal Division of Pharmaceutical Technology and Biopharmacy Friedrich-Alexander-Universität Erlangen-NürnbergCauerstraße 491058 ErlangenGermany FAU NeW-Research Center for New Bioactive Compounds Nikolaus-Fiebiger-Straße 1091058 ErlangenGermany Miller School of Medicine University of MiamiFlorida 33136USA School of Fashion and Textiles RMITVictoria 3056Australia School of Education University of QueenslandQueensland 4102Australia Enzyme Technology Research Team National Center for Genetic Engineering and Biotechnology(BIOTEC)National Science and Technology Development Agency(NSTDA)Khlong NuengKhlong LuangPathum Thani 12120Thailand School of Pharmacy University of QueenslandQueensland 4102Australia School of Chemical Engineering Zhengzhou UniversityZhengzhou 450001PR China Department of Life Sciences Imperial College LondonLondon SW72AZUK

bacterial cellulose is a versatile material with applications in many industries. However, the widespread uptake of bacterial cellulose faces challenges including high production costs and lack of scalability. One approach to address these obstacles is the use of alternative substrates and media, compared to the Hestrin-Schramm (HS) media. By evaluating and selecting appro- priate media and substrates, the production of bacterial cellulose can be more efficient: enabling sustainable systems and supply chains where less energy and materials are lost, and the output production is increased. The purpose of this paper is to analyze the current landscape of bac- terial cellulose alternative media and substrates (ingredients). Through a systematic review of 198 papers, this review identifies 299 alternative substrates from 12 industries and 101 bacte- rial cellulose-producing strains, which were systematically compared. This review also finds that there are methodological gaps in this field such as data variability, papers mislabelling the HS media or not using a comparison media, and a lack of strain names. This alternative substrate analysis for bacterial cellulose production demonstrates that overall, for some applications al- ternative substrates can be taken into consideration that are not only cheaper, but also produce higher yields than HS media.

关键词： bacterial cellulose Cost-effective Fermentation Hestrin-Schramm Substrates Systematic review Sustainability

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bacterial cellulose AS A BASE MATERIAL IN BIODIGITAL ARCHITECTURE(BETWEEN BIO-MATERIAL DEVELOPMENT AND STRUCTURAL CUSTOMIZATION)

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Journal of Green Building 2021年第2期16卷 173-199页

作者： Nadine T.El Gazzar Alberto T.Estévez Yomna K.Abdallah Universitat Internacional de Catalunya iBAG-UIC Barcelona(Institute for Biodigital Architecture&Genetics)

*** Recently,developing sustainable architectural materials from renewable resources is gaining great *** interest is intended to alleviate the drawbacks of petro-leum-based materials and their contribution in the escalation of CO_(2) emissions causing the current environmental *** sustainability through developing efficient architectural materials have been always conditioned by tech-nological advancements and economic *** has affected the architectural design and construction sectors,especially in times of disasters or economic crisis,resulting in paralysis in the architectural construction and material *** effects were caused by the capitalization and centralization of architectural construction *** recent trend of self-sufficiency that had first emerged in environmental activities supporting recycling,environmental purification and conservation,oxygen,food,and electricity production,has extended to cover more sophisticated products,such as wearables,gadgets and *** self-sufficiency in architecture is of interest to multidisciplinary researchers who focus on developing both self-suf-ficient systems and materials as the two main components of the built *** architectural materials aims to provide cheap,recycled,renewable,environmentally friendly,durable and sustainable building material regardless of the possibility of the autonomous production of these materials on a popular democratic *** building materials production was always and still is consid-ered a massive industry that is centralized in major firms and LTDs,limiting the architectural construction process to the availability of major economic *** centralization had its merits in forcing forward large-scale economies and vital-izing the architectural design and construction market,but only on the large scale;however,this centralization shows its drawbacks every time in dis

关键词： bio films bio polymers bacterial cellulose structural customization

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bacterial cellulose/glycolic acid/glycerol composite membrane as a system to deliver glycolic acid for anti-aging treatment

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Journal of Bioresources and Bioproducts 2021年第2期6卷 129-141页

作者： Bricard Mbituyimana Lin Mao Sanming Hu Muhammad Wajid Ullah Kun Chen Lina Fu Weiwei Zhao Zhijun Shi Guang Yang Department of Biomedical Engineering College of Life Science and TechnologyHuazhong University of Science and TechnologyWuhan 430074China Department of Head and Neck Surgery&Communication Sciences School of MedicineDuke UniversityDurham 27710United States School of Mechanical and Electronic Engineering Wuhan Universit of TechnologyWuhan 430070China

Glycolic acid(GA),as an anti-aging skincare ingredient,plays a pivotal role in anti-aging ***,its benefits could be overshadowed due to its side effects including skin burning and irritation when *** cellulose(BC)is a highly pure form of cellulose,biosynthesized in the form of a swollen membrane by several kinds of bacteria that was demonstrated to modulate the release of model drugs owing to its porous and 3D fibrous network structure,and glycerol(GL),as a plasticizer,could enhance the controlled drug ***,we report a topical controlled drug delivery system based on BC membrane,GA and GL for controlling sustainable release of GA to reduce its side effects on the skin,while maintaining its prolonged and maximum therapeutic *** results showed that the incorporation of GL increased the malleability and flexibility of BC/GA/GL membrane,as compared with BC/GA *** addition,the GL enhanced the control of the GA delivery,as evidenced by a higher swelling capacity and thereby a slower release of the GA from BC/GA/GL *** importantly,in vitro study indicated that both BC/GA and BC/GA/GL membranes could effectively stimulate endogenous collagen synthesis in NIH3T3 cells owing to the release of GA,and that BC/GA/GL membrane is more conducive to a long-term cell adhesion,spreading,and proliferation of NIH3T3 and HaCaT cells due to its lower and sustainable release of GA than BC/GA *** study suggests the BC/GL/GA composite membrane holds great promise as an appealing platform to control the release of GA to greatly promote renewal of skin cells for effective anti-aging treatment.

关键词： bacterial cellulose Glycolic acid Glycerol Biocompatibility Controlled drug release

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Spider web-like carbonized bacterial cellulose/MoSe_(2) nanocomposite with enhanced microwave attenuation performance and tunable absorption bands

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Nano Research 2021年第3期14卷 738-746页

作者： Zhengjian Xu Man He Yuming Zhou Shuangxi Nie Yongjuan Wang Yao Huo Yifan Kang Ruili Wang Ran Xu Hao Peng Xi Chen Jiangsu Optoelectronic Functional Materials and Engineering Laboratory School of Chemistry and Chemical EngineeringSoutheast UniversityNanjing211189China Guangxi Key Laboratory of Clean Pulp&Papermaking and Pollution Control College of Light Industry and Food EngineeringGuangxi UniversityNanning530004China

It is essential to manufacture microwave absorbers with strong absorption as well as tunable absorption bands at a low filler ***,it remains challenging for pure biomass material to reach this goal without loading other ***_(2),as a transition metal chalcogenide with semiconductor properties,has emerged as a potential microwave absorber ***,bacterial cellulose(BC)-derived carbon nanofibers/MoSe_(2) nanocomposite was fabricated and phosphoric acid was used to dope phosphorus in BC,in which MoSe_(2) microspheres were dropped on the BC network like a dew-covered spider *** unique network structure enhances conductive loss and multiple reflections of the incident *** collocation of BC and MoSe_(2) is helpful to impedance match and introduces interfacial/dipolar polarization loss;moreover,the P-doping of BC helps to tune the absorption ***,the optimal reflection loss of undoped one reaches−53.33 dB with only 20 wt.%filler content,whose main absorption peaks focus on ***,after the P-doping of BC,the main absorption peaks move to Ku-band and the optimal reflection loss gets stronger(−66.84 dB)with the same filler *** absorption and tunable absorption bands can be realized,and thus wide frequency range is *** work is expected to enlighten future exploration of biomass carbon materials on high-performance microwave absorption materials.

关键词： bacterial cellulose MoSe_(2) network structure P-doped carbon tunable absorption band

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Biomimetic Design of Oxidized bacterial cellulose-gelatin-hydroxyapatite Nanocomposites

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Journal of Bionic Engineering 2016年第4期13卷 631-640页

作者： Mao Yang Wenjuan Zhen Hui Chen Zhihua Shan National Engineering Laboratory for Clean Technology Leather Manufacture Sichuan University Chengdu 610065 China Department of sports medicine Chengdu Sport University Chengdu 610041 China

Oxidized bacterial cellulose （OBC）-hydroxyapatite （HAp）-gelatin （Gel） nanocomposites were prepared by a biomimetic process. HAp nanocrystals were precipitated in a mixed solution ofNa2HPO4 （pH 9.2） and Gel solution at 37 ℃, and OBC was used to generate a three-dimensional （3D） network stent. The tensile strength of OBC-HAp-G was higher than 0.3 MPa, and the complete degradation time was approximately 90 d in Simulated Body Fluid （SBF）. Fourier transform infrared spectroscopy demonstrated that a coordinate bond had formed possibly between HAp and the cellulose hydroxyl. X-ray diffraction showed that both the oxidation of bacterial cellulose and an increase in Gel content induced the formation of tiny HAp crystallites during composite fabrication. Specific surface area and porosity measurements indicated that a low Gel concentration contributed to retention of porous structure. The Ca and P contents on the surface of materials increased initially and then decreased with an increase in Gel content, as measured by energy dispersive spectroscopy. From the thermogravimetric data, the increase in decomposition temperature suggested the formation of chemical bonds among OBC, HAp, and Gel. The above results suggest that the OBC-HAp-G0.3 composite is a potential bone scaffold material.

关键词： bacterial cellulose hydroxyapatite nanocomposite gelatin scaffold material

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Ion-conducting Membranes Based on bacterial cellulose Nanofibers Modified by Poly(sodium acrylate-co-2-acrylamido-2-methylpropanesulfonic acid)

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Chinese Journal of Polymer Science 2024年第3期42卷 333-343,I0007页

作者： Elizaveta V.Batishcheva Nikolay N.Smirnov Natalya V.Bobrova Maria P.Sokolova Michael A.Smirnov Institute of Macromolecular Compounds Russian Academy of SciencesBolshoy pr.31Saint Petersburg 199004Russia

Green method for preparation of ion-conducting membranes(ICM) based on bacterial cellulose nanofibers(CNF) modified by a copolymer of sodium acrylate and 2-acrylamido-2-methylpropanesulfonic acid was elaborated. FTIR and NMR data confirmed grafting of polyacrylate onto cellulose surface. Formation of porous structure of the ICM was controlled by SEM and AFM. The maximal ionic conductivity of the membranes reaches 1.5 and 3.1 mS·cm^(-1)(60 ℃ and 98% relative humidity) when they are saturated with water or H_2SO_4(1 mol·L^(-1)) electrolyte,respectively. Prepared ICM was tested as a separator in a symmetrical supercapacitor with electrodes based on polyaniline hydrogel. The assembled cell demonstrate ability to operate at high current density up to 100 A·g^(-1) maintaining specific capacitance 165 F·g^(-1). Maximal specific capacitance of 289 F·g^(-1) was achieved at current density 1 A·g^(-1). Retaining of 90% of initial capacitance after 10000 of charge-discharge cycles proves high electrochemical stability of prepared ICM.

关键词： bacterial cellulose Ion conductivity Porous membrane Supercapacitor

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