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  1. Article ; Online: Biological MWCNT/chitosan composite coating with outstanding anti-corrosion property for implants

    Jian, Yinghao / Zhang, Jingxian / Yang, Chen / Qi, Luhe / Wang, Xiaohui / Deng, Hongbing / Shi, Xiaowen

    Colloids and Surfaces B: Biointerfaces. 2023 May, v. 225 p.113227-

    2023  

    Abstract: Biocompatible coatings that can protect metal implants have great potential in tissue engineering. In this work, MWCNT/chitosan composite coatings with hydrophobic-hydrophilic asymmetric wettability were facilely prepared by one-step in situ ... ...

    Abstract Biocompatible coatings that can protect metal implants have great potential in tissue engineering. In this work, MWCNT/chitosan composite coatings with hydrophobic-hydrophilic asymmetric wettability were facilely prepared by one-step in situ electrodeposition. The resultant composite coating exhibits excellent thermal stability and mechanical strength (0.76 MPa), benefiting from the compact internal structure. The thickness of the coating can be controlled precisely by the amounts of transferred charges. The MWCNT/chitosan composite coating demonstrates a lower corrosion rate due to its hydrophobicity and compact internal structure. Compared with exposed 316 L stainless steel, its corrosion rate is reduced by two orders of magnitude from 3.004 × 10⁻¹ mm/yr to 5.361 × 10⁻³ mm/yr. The content of iron released from 316 L stainless steel into the simulated body fluid drops to 0.1 mg/L under the protection of the composite coating. In addition, the composite coating enables efficient calcium enrichment from simulated body fluids and promotes the formation of bioapatite layers on the coating surface. This study contributes to furthering the practical application of chitosan-based coatings in implant anticorrosion.
    Keywords body fluids ; calcium ; chitosan ; corrosion ; electroplating ; hydrophobicity ; iron ; stainless steel ; strength (mechanics) ; thermal stability ; wettability ; Coating ; MWCNTs ; Anti-corrosion ; Implants
    Language English
    Dates of publication 2023-05
    Publishing place Elsevier B.V.
    Document type Article ; Online
    ZDB-ID 1500523-9
    ISSN 1873-4367 ; 0927-7765
    ISSN (online) 1873-4367
    ISSN 0927-7765
    DOI 10.1016/j.colsurfb.2023.113227
    Database NAL-Catalogue (AGRICOLA)

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  2. Article ; Online: Biological MWCNT/chitosan composite coating with outstanding anti-corrosion property for implants.

    Jian, Yinghao / Zhang, Jingxian / Yang, Chen / Qi, Luhe / Wang, Xiaohui / Deng, Hongbing / Shi, Xiaowen

    Colloids and surfaces. B, Biointerfaces

    2023  Volume 225, Page(s) 113227

    Abstract: Biocompatible coatings that can protect metal implants have great potential in tissue engineering. In this work, MWCNT/chitosan composite coatings with hydrophobic-hydrophilic asymmetric wettability were facilely prepared by one-step in situ ... ...

    Abstract Biocompatible coatings that can protect metal implants have great potential in tissue engineering. In this work, MWCNT/chitosan composite coatings with hydrophobic-hydrophilic asymmetric wettability were facilely prepared by one-step in situ electrodeposition. The resultant composite coating exhibits excellent thermal stability and mechanical strength (0.76 MPa), benefiting from the compact internal structure. The thickness of the coating can be controlled precisely by the amounts of transferred charges. The MWCNT/chitosan composite coating demonstrates a lower corrosion rate due to its hydrophobicity and compact internal structure. Compared with exposed 316 L stainless steel, its corrosion rate is reduced by two orders of magnitude from 3.004 × 10
    MeSH term(s) Chitosan/chemistry ; Stainless Steel ; Prostheses and Implants ; Wettability ; Corrosion ; Coated Materials, Biocompatible/chemistry
    Chemical Substances Chitosan (9012-76-4) ; Stainless Steel (12597-68-1) ; Coated Materials, Biocompatible
    Language English
    Publishing date 2023-02-28
    Publishing country Netherlands
    Document type Journal Article
    ZDB-ID 1500523-9
    ISSN 1873-4367 ; 0927-7765
    ISSN (online) 1873-4367
    ISSN 0927-7765
    DOI 10.1016/j.colsurfb.2023.113227
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  3. Article ; Online: Ionic Liquid "Water Pocket" for Stable and Environment-Adaptable Aqueous Zinc Metal Batteries.

    Yu, Le / Huang, Jing / Wang, Sijun / Qi, Luhe / Wang, Shanshan / Chen, Chaoji

    Advanced materials (Deerfield Beach, Fla.)

    2023  Volume 35, Issue 21, Page(s) e2210789

    Abstract: The strong reactivity of water in aqueous electrolytes toward metallic zinc (Zn), especially at aggressive operating conditions, remains the fundamental obstacle to the commercialization of aqueous zinc metal batteries (AZMBs). Here, a water-immiscible ... ...

    Abstract The strong reactivity of water in aqueous electrolytes toward metallic zinc (Zn), especially at aggressive operating conditions, remains the fundamental obstacle to the commercialization of aqueous zinc metal batteries (AZMBs). Here, a water-immiscible ionic liquid diluent 1-ethyl-3-methylimidazolium bis(fluorosulfonyl)amide (EmimFSI) is reported that can substantially suppress the water activity of aqueous electrolyte by serving as a "water pocket", enveloping the highly active H
    Language English
    Publishing date 2023-04-02
    Publishing country Germany
    Document type Journal Article
    ZDB-ID 1474949-X
    ISSN 1521-4095 ; 0935-9648
    ISSN (online) 1521-4095
    ISSN 0935-9648
    DOI 10.1002/adma.202210789
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  4. Article ; Online: Gel polymer electrolytes for rechargeable batteries toward wide-temperature applications.

    Zhou, Xiaoyan / Zhou, Yifang / Yu, Le / Qi, Luhe / Oh, Kyeong-Seok / Hu, Pei / Lee, Sang-Young / Chen, Chaoji

    Chemical Society reviews

    2024  

    Abstract: Rechargeable batteries, typically represented by lithium-ion batteries, have taken a huge leap in energy density over the last two decades. However, they still face material/chemical challenges in ensuring safety and long service life at temperatures ... ...

    Abstract Rechargeable batteries, typically represented by lithium-ion batteries, have taken a huge leap in energy density over the last two decades. However, they still face material/chemical challenges in ensuring safety and long service life at temperatures beyond the optimum range, primarily due to the chemical/electrochemical instabilities of conventional liquid electrolytes against aggressive electrode reactions and temperature variation. In this regard, a gel polymer electrolyte (GPE) with its liquid components immobilized and stabilized by a solid matrix, capable of retaining almost all the advantageous natures of the liquid electrolytes and circumventing the interfacial issues that exist in the all-solid-state electrolytes, is of great significance to realize rechargeable batteries with extended working temperature range. We begin this review with the main challenges faced in the development of GPEs, based on extensive literature research and our practical experience. Then, a significant section is dedicated to the requirements and design principles of GPEs for wide-temperature applications, with special attention paid to the feasibility, cost, and environmental impact. Next, the research progress of GPEs is thoroughly reviewed according to the strategies applied. In the end, we outline some prospects of GPEs related to innovations in material sciences, advanced characterizations, artificial intelligence, and environmental impact analysis, hoping to spark new research activities that ultimately bring us a step closer to realizing wide-temperature rechargeable batteries.
    Language English
    Publishing date 2024-04-18
    Publishing country England
    Document type Journal Article ; Review
    ZDB-ID 1472875-8
    ISSN 1460-4744 ; 0306-0012
    ISSN (online) 1460-4744
    ISSN 0306-0012
    DOI 10.1039/d3cs00551h
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  5. Article: Tubular chitosan hydrogels with a tuneable lamellar structure programmed by electrical signals

    Tong, Jun / Yang, Chen / Qi, Luhe / Zhang, Jingxian / Deng, Hongbing / Du, Yumin / Shi, Xiaowen

    Chemical communications. 2022 May 10, v. 58, no. 38

    2022  

    Abstract: The discovery of facile methods to create complex lamellar structures in hydrogels, which mimic the exquisite structures in nature, remains a great challenge. In this work, an ordered lamellar structured hydrogel from the stimuli-responsive amino- ... ...

    Abstract The discovery of facile methods to create complex lamellar structures in hydrogels, which mimic the exquisite structures in nature, remains a great challenge. In this work, an ordered lamellar structured hydrogel from the stimuli-responsive amino-polysaccharide chitosan is fabricated by an electro-assembly process, during which the diffusion of OH⁻ and the electrophoresis of the chitosan chains play important roles. Importantly, a complex ordered/disordered structure of chitosan hydrogel can be regulated with high fidelity by programming the input electrical signals.
    Keywords chitosan ; electrophoresis ; hydrogels
    Language English
    Dates of publication 2022-0510
    Size p. 5781-5784.
    Publishing place The Royal Society of Chemistry
    Document type Article
    ZDB-ID 1472881-3
    ISSN 1364-548X ; 1359-7345 ; 0009-241X
    ISSN (online) 1364-548X
    ISSN 1359-7345 ; 0009-241X
    DOI 10.1039/d2cc01320g
    Database NAL-Catalogue (AGRICOLA)

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  6. Article: One-step electrodeposition of Janus chitosan coating for metallic implants with anti-corrosion properties

    Jian, Yinghao / Yang, Chen / Zhang, Jingxian / Qi, Luhe / Shi, Xiaowen / Deng, Hongbing / Du, Yumin

    Colloids and surfaces. 2022 May 20, v. 641

    2022  

    Abstract: Hydrophilic-hydrophobic Janus chitosan coating was facilely fabricated by one-step electrodeposition in HCl/ethanol solvent. The face of chitosan coating attached to the electrode demonstrates a compact structure while the other face away from the ... ...

    Abstract Hydrophilic-hydrophobic Janus chitosan coating was facilely fabricated by one-step electrodeposition in HCl/ethanol solvent. The face of chitosan coating attached to the electrode demonstrates a compact structure while the other face away from the electrode demonstrates a porous structure, which endows the chitosan coating asymmetric wettability. The concentration of ethanol has a profound effect on the structure and wettability of the chitosan coating and pioneer work on the corrosion resistance of the chitosan coating on metallic implants was carried out. The growth kinetics of the Janus chitosan coating reveals that the coating grows faster and contains more pores in the presence of ethanol. The anticorrosion properties of the Janus chitosan coating were investigated on common metal implants titanium and 316 L stainless steel. The results show that the Janus chitosan coating obtained with 10 wt% ethanol electrolyte has the best anti-corrosion ability due to its compactness and hydrophobic surface. The corrosion rates of the Janus chitosan coating were reduced to 3.94 × 10⁻⁴ mm/yr and 1.77 × 10⁻² mm/yr, respectively, significantly improved as comparison to the bare metal corrosion rates (1.46 ×10⁻³ mm/yr for bare titanium and 3.00 ×10⁻¹ mm/yr for bare stainless steel). The present work provides a simple way to prepare Janus chitosan coating and demonstrates its great potential in implant anticorrosion.
    Keywords chitosan ; corrosion ; electrodes ; electrolytes ; electroplating ; ethanol ; growth models ; hydrophobicity ; solvents ; stainless steel ; titanium ; wettability
    Language English
    Dates of publication 2022-0520
    Publishing place Elsevier B.V.
    Document type Article
    ZDB-ID 1500517-3
    ISSN 0927-7757
    ISSN 0927-7757
    DOI 10.1016/j.colsurfa.2022.128498
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  7. Article ; Online: Tubular chitosan hydrogels with a tuneable lamellar structure programmed by electrical signals.

    Tong, Jun / Yang, Chen / Qi, Luhe / Zhang, Jingxian / Deng, Hongbing / Du, Yumin / Shi, Xiaowen

    Chemical communications (Cambridge, England)

    2022  Volume 58, Issue 38, Page(s) 5781–5784

    Abstract: The discovery of facile methods to create complex lamellar structures in hydrogels, which mimic the exquisite structures in nature, remains a great challenge. In this work, an ordered lamellar structured hydrogel from the stimuli-responsive amino- ... ...

    Abstract The discovery of facile methods to create complex lamellar structures in hydrogels, which mimic the exquisite structures in nature, remains a great challenge. In this work, an ordered lamellar structured hydrogel from the stimuli-responsive amino-polysaccharide chitosan is fabricated by an electro-assembly process, during which the diffusion of OH
    MeSH term(s) Chitosan/chemistry ; Diffusion ; Electricity ; Hydrogels/chemistry ; Polysaccharides
    Chemical Substances Hydrogels ; Polysaccharides ; Chitosan (9012-76-4)
    Language English
    Publishing date 2022-05-10
    Publishing country England
    Document type Journal Article
    ZDB-ID 1472881-3
    ISSN 1364-548X ; 1359-7345 ; 0009-241X
    ISSN (online) 1364-548X
    ISSN 1359-7345 ; 0009-241X
    DOI 10.1039/d2cc01320g
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  8. Article ; Online: Electrical signals regulate the release of insulin from electrodeposited chitosan composite hydrogel: An in vitro and in vivo study.

    Tong, Jun / Liu, Hongyu / Qi, Luhe / Deng, Hongbing / Du, Yumin / Shi, Xiaowen

    Journal of biomedical materials research. Part B, Applied biomaterials

    2022  Volume 110, Issue 11, Page(s) 2464–2471

    Abstract: Electrical signal controlled drug release from polymeric drug delivery system provides an efficient way for accurate and demandable drug release. In this work, insulin was loaded on inorganic nanoplates (layered double hydroxides, LDHs) and coated on a ... ...

    Abstract Electrical signal controlled drug release from polymeric drug delivery system provides an efficient way for accurate and demandable drug release. In this work, insulin was loaded on inorganic nanoplates (layered double hydroxides, LDHs) and coated on a copper wire by co-electrodeposition with chitosan. The formed structure in chitosan composite hydrogel entrapped insulin efficiently, which were proved by various techniques. In addition, the drug loaded chitosan composite hydrogel demonstrated good biocompatibility as suggested by cell attachment. In vitro drug release experiment showed fast responsive pulsed release of insulin by biasing electrical signals. The in vivo experiment in diabetic rats revealed controllable insulin release in plasma and stable decrease of blood glucose can be achieved by using appropriate electrical signal. In addition, HE staining suggested negligible effect to the tissue by electrical signals. This work suggests that the electrical signal controlled insulin release from chitosan composited hydrogel may be a promising administration route for insulin.
    MeSH term(s) Animals ; Blood Glucose ; Chitosan/chemistry ; Chitosan/pharmacology ; Copper ; Delayed-Action Preparations/chemistry ; Diabetes Mellitus, Experimental/drug therapy ; Drug Delivery Systems ; Hydrogels/chemistry ; Hydroxides ; Insulin/chemistry ; Insulin/pharmacology ; Rats
    Chemical Substances Blood Glucose ; Delayed-Action Preparations ; Hydrogels ; Hydroxides ; Insulin ; Copper (789U1901C5) ; Chitosan (9012-76-4)
    Language English
    Publishing date 2022-05-23
    Publishing country United States
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 2099992-6
    ISSN 1552-4981 ; 1552-4973 ; 0021-9304
    ISSN (online) 1552-4981
    ISSN 1552-4973 ; 0021-9304
    DOI 10.1002/jbm.b.35103
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  9. Article ; Online: Bioinspired Multiscale Micro-/Nanofiber Network Design Enabling Extremely Compressible, Fatigue-Resistant, and Rapidly Shape-Recoverable Cryogels.

    Qi, Luhe / Wang, Sen / Chen, Lu / Yu, Le / Guo, Xiaojia / Chen, Mingxiang / Ouyang, Wengen / Shi, Xiaowen / Chen, Chaoji

    ACS nano

    2023  Volume 17, Issue 7, Page(s) 6317–6329

    Abstract: Cryogels with extreme mechanical properties such as ultrahigh compressibility, fatigue resistance, and rapid recovery are attractive in biomedical, environmental remediation, and energy storage applications, which, however, are difficult to achieve in ... ...

    Abstract Cryogels with extreme mechanical properties such as ultrahigh compressibility, fatigue resistance, and rapid recovery are attractive in biomedical, environmental remediation, and energy storage applications, which, however, are difficult to achieve in man-made materials. Here, inspired by the multiscale macro-/microfiber network structure of spider web, we construct an ultraelastic chitosan cryogel with interconnected hybrid micro-/nanofibers (CMNF cryogels)
    Language English
    Publishing date 2023-03-21
    Publishing country United States
    Document type Journal Article
    ISSN 1936-086X
    ISSN (online) 1936-086X
    DOI 10.1021/acsnano.2c10462
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  10. Article ; Online: Photothermal Fibrous Chitosan/Polydopamine Sponge for Intraoperative Hemostasis and Prevention of Tumor Recurrence in Hepatocellular Carcinoma Resection.

    Mu, Lanxin / Qi, Luhe / Long, Haitao / Huang, Jing / Zhong, Zibiao / Shi, Xiaowen / Chen, Chaoji / Ye, Qifa

    Advanced science (Weinheim, Baden-Wurttemberg, Germany)

    2023  Volume 11, Issue 3, Page(s) e2304053

    Abstract: Hepatectomy, a surgical procedure for liver cancer, is often plagued by high recurrence rates worldwide. The recurrence of liver cancer is primarily attributed to microlesions in the liver, changes in the immune microenvironment, and circulating tumor ... ...

    Abstract Hepatectomy, a surgical procedure for liver cancer, is often plagued by high recurrence rates worldwide. The recurrence of liver cancer is primarily attributed to microlesions in the liver, changes in the immune microenvironment, and circulating tumor cells in the bloodstream. To address this issue, a novel intervention method that combines intraoperative hemostasis with mild photothermal therapy is proposed, which has the potential to ablate microlesions and improve the immune microenvironment simultaneously. Specifically, the integrated strategy is realized based on the fibrous chitosan/polydopamine sponge (CPDS), which is constructed from shearing-flow-induced oriented hybrid chitosan fibers and subsequent self-assembly of polydopamine. The CPDS demonstrates high elasticity, excellent water absorption, and photothermal conversion performance. The results confirm the efficient hemostatic properties of the fibrous CPDS in various bleeding models. Notably, in subcutaneous and orthotopic postoperative recurrence and metastasis models of hepatocellular carcinoma, the fibrous CPDS significantly inhibits local tumor recurrence and distant metastasis. Moreover, the combination with lenvatinib can substantially enhance the antitumor effect. This comprehensive treatment strategy offers new insights into hepatectomy of liver cancer, representing a promising approach for clinical management.
    MeSH term(s) Humans ; Carcinoma, Hepatocellular/surgery ; Liver Neoplasms/surgery ; Chitosan/pharmacology ; Neoplasm Recurrence, Local/prevention & control ; Hemostasis ; Tumor Microenvironment ; Indoles ; Polymers
    Chemical Substances polydopamine ; Chitosan (9012-76-4) ; Indoles ; Polymers
    Language English
    Publishing date 2023-11-29
    Publishing country Germany
    Document type Journal Article
    ZDB-ID 2808093-2
    ISSN 2198-3844 ; 2198-3844
    ISSN (online) 2198-3844
    ISSN 2198-3844
    DOI 10.1002/advs.202304053
    Database MEDical Literature Analysis and Retrieval System OnLINE

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