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Godoy Zúniga MM, Ding R, Oh E, Nguyen TB, Tran TT, Nam JD, Suhr J. Avocado seed starch utilized in eco-friendly, UV-blocking, and high-barrier polylactic acid (PLA) biocomposites for active food packaging applications. Int J Biol Macromol 2024; 265:130837. [PMID: 38503372 DOI: 10.1016/j.ijbiomac.2024.130837] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2024] [Revised: 02/22/2024] [Accepted: 03/11/2024] [Indexed: 03/21/2024]
Abstract
Efficient and effective use of biopolymers, such as starch, has increasingly prompted interest due to the current environmental challenges. However, starch-based composites still show poor ductility along with water and oxygen permeability, which may not meet the requirements for food packaging standards. In this study, modified starch (m-St), isolated from the avocado seed and synthesized with tert-butyl acetoacetate (t-BAA), was embedded into polylactic acid (PLA) to design new eco-friendly composites. The developed biocomposites were found to exhibit high performance with outstanding mechanical properties in conjunction with remarkable light, water vapor, and oxygen blocking features for food packaging applications. PLA/m-St(1:6) 20 wt% composites showed a dramatic increase in elongation at break (EB%) from 3.35 to 27.80 % (about 730 % enhancement) and exhibited remarkable UV-blocking performance from 16.21 to 83.86 % for UVB, relative to pure PLA. Equally importantly, these biocomposites revealed significant improvement in oxygen and water vapor barrier performance by reducing their values from 1331 to 32.9 cc m-2 day-1 (indicating a remarkable reduction of 97.53 %) and 61.9 to 28 g m-2 day-1, respectively. This study can show the great potential of extracting starch from biowaste resources and transforming it into sustainable bio-based composites as a promising solution for food packaging applications.
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Affiliation(s)
- Marcela María Godoy Zúniga
- Department of Polymer Science & Engineering, Sungkyunkwan University, 2066, Seoburo, Jangan-gu, Gyeonggi-do 16419, Republic of Korea
| | - Ruonan Ding
- Department of Energy Science, Sungkyunkwan University, 2066, Seoburo, Jangan-gu, Gyeonggi-do 16419, Republic of Korea; Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences, Laoshan District, Qingdao, Shandong, China, 266104
| | - Eunyoung Oh
- School of Mechanical Engineering, Sungkyunkwan University, 2066, Seoburo, Jangan-gu, Gyeonggi-do 16419, Republic of Korea
| | - Tan Binh Nguyen
- Department of Polymer Science & Engineering, Sungkyunkwan University, 2066, Seoburo, Jangan-gu, Gyeonggi-do 16419, Republic of Korea
| | - Trung Tien Tran
- School of Mechanical Engineering, Sungkyunkwan University, 2066, Seoburo, Jangan-gu, Gyeonggi-do 16419, Republic of Korea
| | - Jae-Do Nam
- Department of Polymer Science & Engineering, Sungkyunkwan University, 2066, Seoburo, Jangan-gu, Gyeonggi-do 16419, Republic of Korea; Department of Energy Science, Sungkyunkwan University, 2066, Seoburo, Jangan-gu, Gyeonggi-do 16419, Republic of Korea
| | - Jonghwan Suhr
- Department of Polymer Science & Engineering, Sungkyunkwan University, 2066, Seoburo, Jangan-gu, Gyeonggi-do 16419, Republic of Korea; School of Mechanical Engineering, Sungkyunkwan University, 2066, Seoburo, Jangan-gu, Gyeonggi-do 16419, Republic of Korea.
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2
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Peng F, Chen Y, Liu H, Chen P, Peng F, Qi H. Color-Tunable, Excitation-Dependent, and Water Stimulus-Responsive Room-Temperature Phosphorescence Cellulose for Versatile Applications. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2023; 35:e2304032. [PMID: 37501388 DOI: 10.1002/adma.202304032] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/29/2023] [Revised: 07/23/2023] [Indexed: 07/29/2023]
Abstract
Smart-response materials with ultralong room-temperature phosphorescence (RTP) are highly desirable, but they have rarely been described, especially those originating from sustainable polymers. Herein, a variety of cellulose derivatives with 1,4-dihydropyridine (DHP) rings are synthesized through the Hantzsch reaction, giving impressive RTP with a long lifetime of up to 1251 ms. Specifically, the introduction of acetoacetyl groups and DHP rings promotes the spin-orbit coupling and intersystem crossing process; and multiple interactions between cellulose induce clustering and inhibit the nonradiative transitions, boosting long-live RTP. Furthermore, the resulting transparent and flexible cellulose films also exhibit excitation-dependent and color-tunable afterglows by introducing different extended aromatic groups. More interestingly, the RTP performance of these films is sensitive to water and can be repeated in response to wet/dry stimuli. Inspired by these advantages, the RTP cellulose demonstrates advanced applications in information encryption and anti-counterfeiting. This work not only enriches the photophysical properties of cellulose but also provides a versatile platform for the development of sustainable afterglows.
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Affiliation(s)
- Fang Peng
- State Key Laboratory of Pulp and Paper Engineering, South China University of Technology, Guangzhou, 510641, China
| | - Yian Chen
- State Key Laboratory of Pulp and Paper Engineering, South China University of Technology, Guangzhou, 510641, China
| | - Hongchen Liu
- College of Textiles, Zhongyuan University of Technology, Zhengzhou, 450007, China
| | - Pan Chen
- School of Materials Science and Engineering, Beijing Institute of Technology, Beijing, 100081, China
| | - Feng Peng
- Beijing Key Laboratory of Lignocellulosic Chemistry, State Key Laboratory of Efficient Production of Forest Resources, Beijing Forestry University, Beijing, 100083, China
| | - Haisong Qi
- State Key Laboratory of Pulp and Paper Engineering, South China University of Technology, Guangzhou, 510641, China
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3
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Liu R, Guo Y, Pei M, Chen Y, Zhang L, Li L, Chen Q, Tian Y, Xie H. Cellulose levulinate ester as a robust building block for the synthesis of fully biobased functional cellulose esters. Int J Biol Macromol 2023; 246:125654. [PMID: 37399870 DOI: 10.1016/j.ijbiomac.2023.125654] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2023] [Revised: 06/27/2023] [Accepted: 06/30/2023] [Indexed: 07/05/2023]
Abstract
Facile modification of cellulose or cellulosic derivatives is one of the important strategies to prepare materials with targeted properties, multifunctionality, thus extending their applications in various fields. Cellulose levulinate ester (CLE) has the structural advantage of acetyl propyl ketone moiety pendant, on which fully biobased cellulose levulinate ester derivatives (CLEDs) have been successfully designed and prepared via aldol condensation reaction of CLE with lignin-derived phenolic aldehydes catalyzed by DL-proline. The structure of CLEDs are featured by a phenolic α,β-unsaturated ketone structure, thus endowing them with good UV absorption properties, excellent antioxidant activity, fluorescence properties and satisfactory biocompatibility. The utility of this aldol reaction strategy, together with the facile tunable substitution degree of cellulose levulinate ester and the diversity of aldehydes, can provide potentially a large spectrum of structurally diverse functionalized cellulosic polymers and create new avenues to advanced polymeric architectures.
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Affiliation(s)
- Ran Liu
- Department of polymer materials and engineering, College of Materials and Metallurgy, Guizhou University, Guiyang 550025, China
| | - Yuanlong Guo
- Department of polymer materials and engineering, College of Materials and Metallurgy, Guizhou University, Guiyang 550025, China
| | - Min Pei
- Department of polymer materials and engineering, College of Materials and Metallurgy, Guizhou University, Guiyang 550025, China
| | - Yumei Chen
- Department of polymer materials and engineering, College of Materials and Metallurgy, Guizhou University, Guiyang 550025, China
| | - Lihua Zhang
- Department of polymer materials and engineering, College of Materials and Metallurgy, Guizhou University, Guiyang 550025, China
| | - Long Li
- Department of polymer materials and engineering, College of Materials and Metallurgy, Guizhou University, Guiyang 550025, China
| | - Qin Chen
- Department of polymer materials and engineering, College of Materials and Metallurgy, Guizhou University, Guiyang 550025, China
| | - Yaozhu Tian
- Department of polymer materials and engineering, College of Materials and Metallurgy, Guizhou University, Guiyang 550025, China
| | - Haibo Xie
- Department of polymer materials and engineering, College of Materials and Metallurgy, Guizhou University, Guiyang 550025, China.
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4
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Fabrication of stable solid fluorescent starch materials based on Hantzsch reaction. Carbohydr Polym 2023; 314:120811. [PMID: 37173035 DOI: 10.1016/j.carbpol.2023.120811] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2022] [Revised: 02/20/2023] [Accepted: 03/09/2023] [Indexed: 03/16/2023]
Abstract
In this paper, a series of fluorescent starches were prepared simply and effectively by Hantzsch multi-component reaction (MRC). These materials showed bright fluorescence emission. Notably, due to the existence of polysaccharide skeleton, starch molecules can effectively inhibit the common aggregation induced quenching effect caused by the aggregation of conjugated molecules in traditional organic fluorescent materials. Meanwhile, the stability of this material is so excellent that the fluorescence emission of the dried starch derivatives would not destroy after boiling at a high temperature in some common solvents, and even brighter fluorescence can be stimulated in alkaline solution. In addition to fluorescence, starch was also endowed with hydrophobic property by one-pot method connecting long alkyl chains. Compared with native starch, the contact angle of fluorescent hydrophobic starch increased from 29° to 134°. Furthermore, the fluorescent starch can be prepared into film, gel and coating by different processing methods. The preparation of these Hantzsch fluorescent starch materials provide a new way for the functional modification of starch materials and has great application potential in detecting, anti-counterfeiting, security printing and other related fields.
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Guo L, Liu H, Peng F, Kang J, Qi H. Novel multifunctional papers based on chemical modified cellulose fibers derived from waste bagasse. Carbohydr Polym 2022; 297:120013. [DOI: 10.1016/j.carbpol.2022.120013] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2022] [Revised: 08/12/2022] [Accepted: 08/18/2022] [Indexed: 11/29/2022]
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6
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High throughput preparation of antioxidant polysaccharide-based polymers with UV-resistant and antibacterial performance. Food Hydrocoll 2022. [DOI: 10.1016/j.foodhyd.2022.107936] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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7
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A facile method of functional derivatization based on starch acetoacetate. Carbohydr Polym 2022; 289:119468. [DOI: 10.1016/j.carbpol.2022.119468] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2022] [Revised: 03/31/2022] [Accepted: 04/04/2022] [Indexed: 11/24/2022]
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8
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Lan L, Ping J, Xiong J, Ying Y. Sustainable Natural Bio-Origin Materials for Future Flexible Devices. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2022; 9:e2200560. [PMID: 35322600 PMCID: PMC9130888 DOI: 10.1002/advs.202200560] [Citation(s) in RCA: 21] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/28/2022] [Revised: 02/27/2022] [Indexed: 05/12/2023]
Abstract
Flexible devices serve as important intelligent interfaces in various applications involving health monitoring, biomedical therapies, and human-machine interfacing. To address the concern of electronic waste caused by the increasing usage of electronic devices based on synthetic polymers, bio-origin materials that possess environmental benignity as well as sustainability offer new opportunities for constructing flexible electronic devices with higher safety and environmental adaptivity. Herein, the bio-source and unique molecular structures of various types of natural bio-origin materials are briefly introduced. Their properties and processing technologies are systematically summarized. Then, the recent progress of these materials for constructing emerging intelligent flexible electronic devices including energy harvesters, energy storage devices, and sensors are introduced. Furthermore, the applications of these flexible electronic devices including biomedical implants, artificial e-skin, and environmental monitoring are summarized. Finally, future challenges and prospects for developing high-performance bio-origin material-based flexible devices are discussed. This review aims to provide a comprehensive and systematic summary of the latest advances in the natural bio-origin material-based flexible devices, which is expected to offer inspirations for exploitation of green flexible electronics, bridging the gap in future human-machine-environment interactions.
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Affiliation(s)
- Lingyi Lan
- Laboratory of Agricultural Information Intelligent SensingSchool of Biosystems Engineering and Food ScienceZhejiang UniversityHangzhouZhejiang310058China
- Key Laboratory of Intelligent Equipment and Robotics for Agriculture of Zhejiang ProvinceHangzhouZhejiang310058China
| | - Jianfeng Ping
- Laboratory of Agricultural Information Intelligent SensingSchool of Biosystems Engineering and Food ScienceZhejiang UniversityHangzhouZhejiang310058China
- Key Laboratory of Intelligent Equipment and Robotics for Agriculture of Zhejiang ProvinceHangzhouZhejiang310058China
| | - Jiaqing Xiong
- Innovation Center for Textile Science and TechnologyDonghua University2999 North Renmin RoadShanghai201620China
| | - Yibin Ying
- Laboratory of Agricultural Information Intelligent SensingSchool of Biosystems Engineering and Food ScienceZhejiang UniversityHangzhouZhejiang310058China
- Key Laboratory of Intelligent Equipment and Robotics for Agriculture of Zhejiang ProvinceHangzhouZhejiang310058China
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9
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Guo L, Liu H, Peng F, Qi H. Efficient and portable cellulose-based colorimetric test paper for metal ion detection. Carbohydr Polym 2021; 274:118635. [PMID: 34702458 DOI: 10.1016/j.carbpol.2021.118635] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2021] [Revised: 08/24/2021] [Accepted: 08/31/2021] [Indexed: 10/20/2022]
Abstract
Fabrication of metal ion detection materials generally involved problems such as high cost and complicated processes of pretreatment and operation. Herein, a novel colorimetric test paper for metal ions detection was developed based on functionalized cellulose fibers. Acetoacetyl groups were introduced on cellulose fibers by a surface esterification process. The obtained cellulose acetoacetate (CAA) fibers were made into CAA paper via a paper-making process. The CAA paper possessed robust mechanical property, thermal stability selectivity and rapid response to Fe3+ and Cu2+ ions, with an obvious naked-eye color change within 5 s. The mechanism of this visual recognition for metal ions due to that the acetoacetyl groups coordination chelated with metal ion to form six-membered ring structure, further leading to the color change of the materials. It provided a facile and universal method to prepare efficient and portable cellulose-based test paper, which has great potential in metal ion detection field.
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Affiliation(s)
- Lei Guo
- State Key Laboratory of Pulp and Paper Engineering, South China University of Technology, Guangzhou 510641, China
| | - Hongchen Liu
- State Key Laboratory of Pulp and Paper Engineering, South China University of Technology, Guangzhou 510641, China; College of Textiles, Zhongyuan University of Technology, Zhengzhou 450007, China.
| | - Fang Peng
- State Key Laboratory of Pulp and Paper Engineering, South China University of Technology, Guangzhou 510641, China
| | - Haisong Qi
- State Key Laboratory of Pulp and Paper Engineering, South China University of Technology, Guangzhou 510641, China.
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10
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Liu H, Guo L, Tao S, Huang Z, Qi H. Freely Moldable Modified Starch as a Sustainable and Recyclable Plastic. Biomacromolecules 2021; 22:2676-2683. [PMID: 34043319 DOI: 10.1021/acs.biomac.1c00361] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Efficiently preparing a starch-based plastic with moisture insensitivity and toughness is a challenge to improve the high-value utilization of polysaccharide resources. Herein, a sustainable, recyclable starch-based plastic was prepared in a facile and eco-friendly way. First, starch acetoacetate (SAA) with different degrees of substitution (DSs) was synthesized by transesterification. Then, the SAA film was obtained through a solvent-free hot-pressing method. Notably, SAA with different DSs exhibited various glass transition temperatures (109-140 °C), and SAA with high DS (>0.84) was insoluble even after boiling in water for 1 h. Also, the maximum fracture strength of SAA film up to 15.5 MPa and a maximum elongation at break up to 30% were reached . In addition, the starch-based plastic film retained the original mechanical properties after three cycles of hot processing. In consideration of the facile preparation process, this protocol provided a new avenue for developing sustainable and recyclable starch-based plastics.
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Affiliation(s)
- Hongchen Liu
- State Key Laboratory of Pulp and Paper Engineering, South China University of Technology, Guangzhou 510640, China.,College of Textiles, Zhongyuan University of Technology, Zhengzhou 450007, China
| | - Lei Guo
- State Key Laboratory of Pulp and Paper Engineering, South China University of Technology, Guangzhou 510640, China
| | - Shenming Tao
- State Key Laboratory of Pulp and Paper Engineering, South China University of Technology, Guangzhou 510640, China
| | - Zhongyuan Huang
- State Key Laboratory of Pulp and Paper Engineering, South China University of Technology, Guangzhou 510640, China
| | - Haisong Qi
- State Key Laboratory of Pulp and Paper Engineering, South China University of Technology, Guangzhou 510640, China
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11
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Nichols BLB, Chen J, Mischnick P, Edgar KJ. Selective Oxidation of 2-Hydroxypropyl Ethers of Cellulose and Dextran: Simple and Efficient Introduction of Versatile Ketone Groups to Polysaccharides. Biomacromolecules 2020; 21:4835-4849. [PMID: 33236636 DOI: 10.1021/acs.biomac.0c01045] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Oxidation of polysaccharides has been a useful approach to new materials. However, selectivity in oxidation of polysaccharide macromolecular polyols remains a significant challenge with few methods for the synthesis of ketone-substituted polysaccharides. We report here a selective, practical, and efficient process, beginning with 2-hydroxypropyl ethers of polysaccharides that are simple and economical to prepare. We demonstrate this approach herein using commercial 2-hydroxypropyl cellulose (HPC) and 2-hydroxypropyl dextran (HPD) that we prepared. We oxidize the terminal, secondary alcohols of the oligo(2-hydroxypropyl) substituents with sodium hypochlorite so that the product has an oligo(2-hydroxypropyl) side chains terminated by a ketone. We demonstrate the high chemo- and regioselectivity of this oxidation by analytical methods including hydrolysis to monosaccharides and mass spectrometry of the resulting mixture. We provide an initial demonstration of the potential utility of these keto-polysaccharides by reacting Ox-HPC with primary amines to form Schiff base imines, providing proactive polymers.
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Affiliation(s)
- Brittany L B Nichols
- Department of Chemistry, Virginia Tech, Blacksburg, Virginia 24061, United States
| | - Junyi Chen
- Department of Chemistry, Virginia Tech, Blacksburg, Virginia 24061, United States
| | - Petra Mischnick
- Institute of Food Chemistry, Technische Universität Braunschweig, 38106 Braunschweig, Germany
| | - Kevin J Edgar
- Department of Sustainable Biomaterials, Virginia Tech, Blacksburg, Virginia 24061, United States.,Macromolecules Innovation Institute, Virginia Tech, Blacksburg, Virginia 24061, United States
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12
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Rong L, Yang D, Wang B, Xiao D, Lu M, Mao Z, Xu H, Gu Y, Feng X, Sui X. Durable and Effective Antibacterial Cotton Fabric Collaborated with Polypropylene Tissue Mesh for Abdominal Wall Defect Repair. ACS Biomater Sci Eng 2020; 6:3868-3877. [PMID: 33463345 DOI: 10.1021/acsbiomaterials.0c00626] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Abstract
A feasible, efficient antibacterial and anti-infective mesh for clinical abdominal wall defect repair is significant, but challenging due to the complexity of the postoperative wound environment. Herein, a simple strategy was provided to construct woven cotton fabric modified with gentamicin (Gem) via the enamine bonds. The obtained cotton fabric possessed favorable antibacterial properties against E. coli and S. aureus with the bactericidal rate of over 99.99% and could be combined with a commercial polypropylene (PP) mesh to serve as a two-layer composite mesh for abdominal wall defect repair. The antibacterial cotton layer was systematically characterized by FTIR, XPS, SEM, EDS, and mechanical measurements. The C2C12 cells and human fibroblasts were employed to assess the cytocompatibility of the composite mesh in vitro. Furthermore, the rat abdominal wall defect model was used to evaluate the efficacy of antibacterial and anti-infection properties. It was demonstrated that the two-layer composite mesh possessed favorable biocompatibility and satisfactory anti-infection properties involved in abdominal wall defect repair. Therefore, this synergetic two-layer composite mesh would out-perform surgical PP meshes in preventing infectious complications.
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Affiliation(s)
- Liduo Rong
- Key Lab of Science and Technology of Eco-textile, Ministry of Education, College of Chemistry, Chemical Engineering and Biotechnology, Donghua University, Shanghai, 201620, People's Republic of China
| | - Dongchao Yang
- Department of General Surgery, Shanghai Ninth People's Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai 200011, People's Republic of China
| | - Bijia Wang
- Key Lab of Science and Technology of Eco-textile, Ministry of Education, College of Chemistry, Chemical Engineering and Biotechnology, Donghua University, Shanghai, 201620, People's Republic of China
| | - Dongdong Xiao
- Department of Urology and Andrology, Ren Ji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai 200001, People's Republic of China.,Shanghai Key Laboratory of Tissue Engineering, Shanghai Ninth People's Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai 200011, People's Republic of China
| | - Mujun Lu
- Department of Urology and Andrology, Ren Ji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai 200001, People's Republic of China
| | - Zhiping Mao
- Key Lab of Science and Technology of Eco-textile, Ministry of Education, College of Chemistry, Chemical Engineering and Biotechnology, Donghua University, Shanghai, 201620, People's Republic of China
| | - Hong Xu
- Key Lab of Science and Technology of Eco-textile, Ministry of Education, College of Chemistry, Chemical Engineering and Biotechnology, Donghua University, Shanghai, 201620, People's Republic of China
| | - Yan Gu
- Department of General Surgery, Shanghai Ninth People's Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai 200011, People's Republic of China
| | - Xueling Feng
- Key Lab of Science and Technology of Eco-textile, Ministry of Education, College of Chemistry, Chemical Engineering and Biotechnology, Donghua University, Shanghai, 201620, People's Republic of China
| | - Xiaofeng Sui
- Key Lab of Science and Technology of Eco-textile, Ministry of Education, College of Chemistry, Chemical Engineering and Biotechnology, Donghua University, Shanghai, 201620, People's Republic of China
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Processing and valorization of cellulose, lignin and lignocellulose using ionic liquids. JOURNAL OF BIORESOURCES AND BIOPRODUCTS 2020. [DOI: 10.1016/j.jobab.2020.04.001] [Citation(s) in RCA: 122] [Impact Index Per Article: 30.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
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14
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Rong L, Shen X, Wang B, Mao Z, Feng X, Sui X. Antibacterial thyme oil-loaded organo-hydrogels utilizing cellulose acetoacetate as reactive polymer emulsifier. Int J Biol Macromol 2020; 147:18-23. [DOI: 10.1016/j.ijbiomac.2020.01.052] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2019] [Revised: 12/31/2019] [Accepted: 01/06/2020] [Indexed: 12/19/2022]
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15
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The Influence of Compatibility on the Structure and Properties of PLA/Lignin Biocomposites by Chemical Modification. Polymers (Basel) 2019; 12:polym12010056. [PMID: 31906231 PMCID: PMC7023527 DOI: 10.3390/polym12010056] [Citation(s) in RCA: 29] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2019] [Revised: 12/12/2019] [Accepted: 12/15/2019] [Indexed: 01/07/2023] Open
Abstract
Lignin, a natural amorphous three-dimensional aromatic polymer, is investigated as an appropriate filler for biocomposites. The chemical modification of firsthand lignin is an effective pathway to accomplish acetoacetate functional groups replacing polar hydroxyl (–OH) groups, which capacitates lignin to possess better miscibility with poly(lactic acid) (PLA), compared with acidified lignin (Ac-lignin) and butyric lignin (By-lignin), for the sake of blending with poly(lactic acid) (PLA) to constitute a new biopolymer based composites. Generally speaking, the characterization of all PLA composites has been performed taking advantage of Fourier transform infrared (FTIR), scanning electron microscopy (SEM), dynamic Mechanical analysis (DMA), differential scanning calorimeter (DSC), thermogravimetric analysis (TGA), rheological analysis, and tensile test. Visibly, it is significant to highlight that the existence of acetoacetate functional groups enhances the miscibility, interfacial compatibility, and interface interaction between acetoacetate lignin (At-lignin) and PLA. Identical conclusions were obtained in this study where PLA/At-lignin biocomposites furthest maintain the tensile strength of pure PLA.
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16
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Durable antibacterial and hydrophobic cotton fabrics utilizing enamine bonds. Carbohydr Polym 2019; 211:173-180. [DOI: 10.1016/j.carbpol.2019.01.103] [Citation(s) in RCA: 54] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2018] [Revised: 01/29/2019] [Accepted: 01/29/2019] [Indexed: 11/21/2022]
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17
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Rong L, Zeng M, Liu H, Wang B, Mao Z, Xu H, Zhang L, Zhong Y, Yuan J, Sui X. Biginelli reaction on cellulose acetoacetate: a new approach for versatile cellulose derivatives. Carbohydr Polym 2019; 209:223-229. [DOI: 10.1016/j.carbpol.2019.01.036] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2018] [Revised: 01/09/2019] [Accepted: 01/10/2019] [Indexed: 11/29/2022]
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18
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Xiao Y, Rong L, Wang B, Mao Z, Xu H, Zhong Y, Zhang L, Sui X. A light-weight and high-efficacy antibacterial nanocellulose-based sponge via covalent immobilization of gentamicin. Carbohydr Polym 2018; 200:595-601. [PMID: 30177203 DOI: 10.1016/j.carbpol.2018.07.091] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2018] [Revised: 07/27/2018] [Accepted: 07/30/2018] [Indexed: 01/04/2023]
Abstract
Covalent grafting of gentamicin to nanocellulose-based sponge was realized for the first time. The named sponge was prepared by initially multi-crosslinking among cellulose nanofibers (CNF), cellulose acetoacetate (CAA) and 3-aminopropyl(triethoxy)silane (APTES) followed by surface modification with gentamicin via the formation of enamine bond. The structure and mechanical performances of the obtained gentamicin-functionalized CNF sponge were characterized with FT-IR, XPS, EDX, SEM, Nitrogen adsorption-desorption measurement, and compressive test. Its antibacterial activity against E. coli and S. aureus was evaluated using disc diffusion and colony forming units (CFU) count methods. The results showed that gentamicin was successfully grafted on the surface of CNF sponges without significant change in morphology and slight improvement in mechanical performance. The superior lightness of the sponge (0.0174 g cm-3) was demonstrated by showing the sponge could be supported by a flower branch without crushing it. Gentamicin-functionalized CNF sponges showed excellent antibacterial performance against E. coli and S. aureus, with bactericidal rates of over 99.9%.
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Affiliation(s)
- Yongmei Xiao
- Key Lab of Science & Technology of Eco-textile, Ministry of Education, College of Chemistry, Chemical Engineering and Biotechnology, Donghua University, No. 2999 North Renmin Road, Shanghai 201620, People's Republic of China
| | - Liduo Rong
- Key Lab of Science & Technology of Eco-textile, Ministry of Education, College of Chemistry, Chemical Engineering and Biotechnology, Donghua University, No. 2999 North Renmin Road, Shanghai 201620, People's Republic of China
| | - Bijia Wang
- Key Lab of Science & Technology of Eco-textile, Ministry of Education, College of Chemistry, Chemical Engineering and Biotechnology, Donghua University, No. 2999 North Renmin Road, Shanghai 201620, People's Republic of China
| | - Zhiping Mao
- Key Lab of Science & Technology of Eco-textile, Ministry of Education, College of Chemistry, Chemical Engineering and Biotechnology, Donghua University, No. 2999 North Renmin Road, Shanghai 201620, People's Republic of China
| | - Hong Xu
- Key Lab of Science & Technology of Eco-textile, Ministry of Education, College of Chemistry, Chemical Engineering and Biotechnology, Donghua University, No. 2999 North Renmin Road, Shanghai 201620, People's Republic of China
| | - Yi Zhong
- Key Lab of Science & Technology of Eco-textile, Ministry of Education, College of Chemistry, Chemical Engineering and Biotechnology, Donghua University, No. 2999 North Renmin Road, Shanghai 201620, People's Republic of China
| | - Linping Zhang
- Key Lab of Science & Technology of Eco-textile, Ministry of Education, College of Chemistry, Chemical Engineering and Biotechnology, Donghua University, No. 2999 North Renmin Road, Shanghai 201620, People's Republic of China
| | - Xiaofeng Sui
- Key Lab of Science & Technology of Eco-textile, Ministry of Education, College of Chemistry, Chemical Engineering and Biotechnology, Donghua University, No. 2999 North Renmin Road, Shanghai 201620, People's Republic of China.
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Zhang C, Zhou M, Liu S, Wang B, Mao Z, Xu H, Zhong Y, Zhang L, Xu B, Sui X. Copper-loaded nanocellulose sponge as a sustainable catalyst for regioselective hydroboration of alkynes. Carbohydr Polym 2018; 191:17-24. [DOI: 10.1016/j.carbpol.2018.03.002] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2017] [Revised: 02/28/2018] [Accepted: 03/01/2018] [Indexed: 12/22/2022]
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Wang T, Liu X, Ma C, Liu Y, Dong H, Ma W, Liu Z, Wei M, Li C, Yan Y. A two step hydrothermal process to prepare carbon spheres from bamboo for construction of core–shell non-metallic photocatalysts. NEW J CHEM 2018. [DOI: 10.1039/c8nj00953h] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Carbon spheres were prepared by a two step hydrothermal method from bamboo, both as electron receivers and electron donors.
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