1
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Li D, Chen L. Solvent-Induced Lignin Conformation Changes Affect Synthesis and Antibacterial Performance of Silver Nanoparticle. NANOMATERIALS (BASEL, SWITZERLAND) 2024; 14:957. [PMID: 38869582 PMCID: PMC11173806 DOI: 10.3390/nano14110957] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/18/2024] [Revised: 05/16/2024] [Accepted: 05/23/2024] [Indexed: 06/14/2024]
Abstract
The emergence of antibiotic-resistant bacteria necessitates the development of novel, sustainable, and biocompatible antibacterial agents. This study addresses cytotoxicity and environmental concerns associated with traditional silver nanoparticles (AgNPs) by exploring lignin, a readily available and renewable biopolymer, as a platform for AgNPs. We present a novel one-pot synthesis method for lignin-based AgNPs (AgNPs@AL) nanocomposites, achieving rapid synthesis within 5 min. This method utilizes various organic solvents, demonstrating remarkable adaptability to a wide range of lignin-dissolving systems. Characterization reveals uniform AgNP size distribution and morphology influenced by the chosen solvent. This adaptability suggests the potential for incorporating lignin-loaded antibacterial drugs alongside AgNPs, enabling combined therapy in a single nanocomposite. Antibacterial assays demonstrate exceptional efficacy against both Gram-negative and Gram-positive bacteria, with gamma-valerolactone (GVL)-assisted synthesized AgNPs exhibiting the most potent effect. Mechanistic studies suggest a combination of factors contributes to the antibacterial activity, including direct membrane damage caused by AgNPs and sustained silver ion release, ultimately leading to bacterial cell death. This work presents a straightforward, adaptable, and rapid approach for synthesizing biocompatible AgNPs@AL nanocomposites with outstanding antibacterial activity. These findings offer a promising and sustainable alternative to traditional antibiotics, contributing to the fight against antibiotic resistance while minimizing environmental impact.
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Affiliation(s)
- Dan Li
- Guangdong Provincial Laboratory of Chemistry and Fine Chemical Engineering Jieyang Center, Jieyang 515200, China;
- Guangdong Provincial Key Laboratory of Plant Resources Biorefinery, School of Chemical Engineering and Light Industry, Guangdong University of Technology, Guangzhou 510006, China
| | - Liheng Chen
- Guangdong Provincial Laboratory of Chemistry and Fine Chemical Engineering Jieyang Center, Jieyang 515200, China;
- Guangdong Provincial Key Laboratory of Plant Resources Biorefinery, School of Chemical Engineering and Light Industry, Guangdong University of Technology, Guangzhou 510006, China
- Guangdong Basic Research Center of Excellence for Ecological Security, Green Development in Guangdong-Hong Kong-Marco Greater Bay Area (GBA), Guangdong University of Technology, Guangzhou 510006, China
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2
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Wei Z, Cai W, Cai C, Fu Y. Tree transpiration-inspired cellulose aerogel with engineered cold-evaporated surface for promoting structural stability and minimizing energy loss. Carbohydr Polym 2024; 328:121729. [PMID: 38220347 DOI: 10.1016/j.carbpol.2023.121729] [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: 10/10/2023] [Revised: 12/15/2023] [Accepted: 12/20/2023] [Indexed: 01/16/2024]
Abstract
Solar-driven evaporation technology could significantly relieve the fresh-water crisis in the world. However, several problems, such as poor structural stability, low photothermal conversion capacity, and single heat source of traditional evaporators limited the promotion of fresh-water production efficiency. Herein, inspired by tree transpiration, we report a hydrophilic three-dimensional (3D) cellulose-based evaporator similar to the root of a tree, which can pump the bottom water to the evaporation surface for vapor generation. The aldehyde-based cellulose nanocrystals/ethylene imine polymer (ACP) aerogel was developed through Schiff base reaction to enhance the chain entangle capacity of the cellulose nanocrystals (CNCs) aerogel in water. Coating the ACP aerogel with lignin-derived photothermal material created the double-layered solar-driven evaporator (ACP-7LM), achieving a remarkable surface temperature of 35.9 °C in water under 1 sun irradiation for 1 h. The ACP-7LM exhibited an impressive evaporation rate of 1.60 kg m-2 h-1, leveraging its structural stability and excellent photothermal conversion. Increasing the cold evaporation surface (adjusting exposure height from 0 cm to 4 cm) of ACP-7LM aerogel maintained a lower temperature compared to ambient temperature on the side surface during evaporation, which harvest heat energy from environment and minimize energy loss. This enhanced environmental heat absorption boosted the ACP-7LM's evaporation rate to 3.76 kg m-2 h-1, a 2.35-fold increase over the ACP-7LM (0 cm). This solar-driven evaporator offers an efficient, innovative approach to elevate evaporation rates and address the global water crisis by simultaneously enhancing heat absorption capacity and photothermal conversion efficiency.
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Affiliation(s)
- Zechang Wei
- Co-Innovation Center of Efficient Processing and Utilization of Forest Resource, School of Materials Science and Engineering, Nanjing Forestry University, Nanjing, Jiangsu, 210037, China
| | - Wanquan Cai
- Co-Innovation Center of Efficient Processing and Utilization of Forest Resource, School of Materials Science and Engineering, Nanjing Forestry University, Nanjing, Jiangsu, 210037, China
| | - Chenyang Cai
- Co-Innovation Center of Efficient Processing and Utilization of Forest Resource, School of Materials Science and Engineering, Nanjing Forestry University, Nanjing, Jiangsu, 210037, China.
| | - Yu Fu
- Co-Innovation Center of Efficient Processing and Utilization of Forest Resource, School of Materials Science and Engineering, Nanjing Forestry University, Nanjing, Jiangsu, 210037, China.
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3
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Cong SQ, Wang B, Wang H, Zheng QC, Yang QR, Yang RT, Li QL, Wang WS, Cui XJ, Luo FX. Fe 3O 4-lignin@Pd-NPs: A highly active, stable and broad-spectrum nanocomposite for water treatment. Int J Biol Macromol 2024; 256:128233. [PMID: 38040166 DOI: 10.1016/j.ijbiomac.2023.128233] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2023] [Revised: 11/14/2023] [Accepted: 11/16/2023] [Indexed: 12/03/2023]
Abstract
In this work, we report an environmentally friendly renewable nanocomposite magnetic lignin-based palladium nanoparticles (Fe3O4-lignin@Pd-NPs) for efficient wastewater treatment by decorating palladium nanoparticles without using any toxic reducing agents on the magnetic lignin abstracted from Poplar. The structure of composite Fe3O4-lignin@Pd-NPs was unambiguously confirmed by XRD, SEM, TEM, EDS, FTIR, and Zeta potential. After systematic evaluation of the use and efficiency of the composite to remove toxic organic dyes in wastewater, some promising results were observed as follows: Fe3O4-lignin@Pd-NPs exhibits highly active and efficient performance in the removal of toxic methylene blue (MB) (up to 99.8 %) wastewater in 2 min at different concentrations of MB and different pH values. Moreover, except for toxic MB, the other organic dyes including Rhodamine B (RhB), Rhodamine 6G (Rh6G), and Methyl Orange (MO) can also be removed efficiently by the composite. Finally, the easily recovered composite Fe3O4-lignin@Pd-NPs exhibits well stability and reusability, and catalytic efficiency is maintained well after ten cycles. In conclusion, the lignin-based magnetism Pd composite exhibits powerful potential practical application in industrial wastewater treatment.
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Affiliation(s)
- Si-Qi Cong
- Key Laboratory of Ecology and Environment in Minority Areas (Minzu University of China), National Ethnic Affairs Commission, Beijing 100081, China; College of Life and Environmental Sciences, Minzu University of China, Beijing 100081, China
| | - Bo Wang
- Key Laboratory of Ecology and Environment in Minority Areas (Minzu University of China), National Ethnic Affairs Commission, Beijing 100081, China; College of Life and Environmental Sciences, Minzu University of China, Beijing 100081, China
| | - Han Wang
- Key Laboratory of Ecology and Environment in Minority Areas (Minzu University of China), National Ethnic Affairs Commission, Beijing 100081, China; College of Life and Environmental Sciences, Minzu University of China, Beijing 100081, China
| | - Qiu-Cui Zheng
- Key Laboratory of Ecology and Environment in Minority Areas (Minzu University of China), National Ethnic Affairs Commission, Beijing 100081, China; College of Life and Environmental Sciences, Minzu University of China, Beijing 100081, China
| | - Qian-Ru Yang
- Key Laboratory of Ecology and Environment in Minority Areas (Minzu University of China), National Ethnic Affairs Commission, Beijing 100081, China; College of Life and Environmental Sciences, Minzu University of China, Beijing 100081, China
| | - Ruo-Tong Yang
- Key Laboratory of Ecology and Environment in Minority Areas (Minzu University of China), National Ethnic Affairs Commission, Beijing 100081, China; College of Life and Environmental Sciences, Minzu University of China, Beijing 100081, China
| | - Qian-Li Li
- School of Chemistry and Chemical Engineering, Liaocheng University, Liaocheng, Shandong 252000, China
| | - Wen-Shu Wang
- Key Laboratory of Ecology and Environment in Minority Areas (Minzu University of China), National Ethnic Affairs Commission, Beijing 100081, China; College of Life and Environmental Sciences, Minzu University of China, Beijing 100081, China
| | - Xiao-Jie Cui
- Key Laboratory of Ecology and Environment in Minority Areas (Minzu University of China), National Ethnic Affairs Commission, Beijing 100081, China; College of Life and Environmental Sciences, Minzu University of China, Beijing 100081, China
| | - Fei-Xian Luo
- Key Laboratory of Ecology and Environment in Minority Areas (Minzu University of China), National Ethnic Affairs Commission, Beijing 100081, China; College of Life and Environmental Sciences, Minzu University of China, Beijing 100081, China.
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Wu X, Lian H, Li X, Xiao J. The mechanism of self-assembly of lignin in deep eutectic solvent based on sulfamic acid and urea through molecular dynamics simulation. Int J Biol Macromol 2023; 253:126664. [PMID: 37660860 DOI: 10.1016/j.ijbiomac.2023.126664] [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: 07/04/2023] [Revised: 08/26/2023] [Accepted: 08/31/2023] [Indexed: 09/05/2023]
Abstract
Due to the diversity of industrial lignin sources and the complexity of its structure, its application as a high-value material is limited. Lignin nanoparticles (LNPs) have emerged as a hotspot for research due to their advantages of high specific surface area and high dispersion and the solvent transfer method is commonly used for the preparation of LNPs. In this paper, LNPs were prepared by solvent transfer method using DES based on sulfamic acid and urea (S/U DES) as solvent and water as anti-solvent. To explore the internal mechanism of the self-assembly of nanoparticles, a theoretical model of the solvent system and model lignin compound was constructed with the assistance of quantum chemistry and molecular dynamics theories. Through classical molecular dynamics (MD) simulations, the interaction energy, radius of gyration (ROG), solvent accessible surface area (SASS), radial and spatial distribution function (RDFs/SDFs), hydrogen bonding, and the morphology changes were analyzed to reveal the internal mechanism of self-assembly of model lignin compounds in S/U DES. This study is useful in revealing the mechanism of interaction between lignin and DES, as well as providing a benchmark for the green and efficient preparation of lignin nanoparticles.
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Affiliation(s)
- Xinyu Wu
- Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, College of Materials Science and Engineering, Nanjing Forestry University, Nanjing 210037, China
| | - Hailan Lian
- Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, College of Materials Science and Engineering, Nanjing Forestry University, Nanjing 210037, China; Jiangsu Engineering Research Center of Fast-growing Trees and Agri-fiber Materials, Nanjing, Jiangsu 210037, China.
| | - Xiaoyu Li
- Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, College of Materials Science and Engineering, Nanjing Forestry University, Nanjing 210037, China
| | - Jun Xiao
- Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, College of Materials Science and Engineering, Nanjing Forestry University, Nanjing 210037, China
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5
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Vo TV, Tran NT, Nguyen PLM, Nguyen NN, Nguyen NT, Nguyen TTT, Tran TTV, Nguyen VP, Thai HT, Hoang D. Sustainable Lignin-Based Nano Hybrid Biomaterials with High-Performance Antifungal Activity. ACS OMEGA 2023; 8:37540-37548. [PMID: 37841154 PMCID: PMC10568684 DOI: 10.1021/acsomega.3c05934] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/11/2023] [Accepted: 09/15/2023] [Indexed: 10/17/2023]
Abstract
Aspergillus flavus (A. flavus) and Aspergillus niger (A. niger) mainly spread through airborne fungal spores. An effective control to impede the dissemination of the spores of Aspergillus in the air affecting the environment and food was carried out. This study focuses on the sustainable rice husk-extracted lignin, nanolignin, lignin/n-lignin capped silver nanoparticles used for fungal growth inhibition. These biomaterials inhibit the growth of fungi by altering the permeability of cell membranes and influencing intracellular biosynthesis. The antifungal indexes for A. flavus and A. niger on day 5 at a concentration of 2000 μg/100 μL are 50.8 and 43.6%, respectively. The results demonstrate that the hybrid biomaterials effectively prevent the growth or generation of fungal spores. The findings of this research hold significant implications for future investigations focused on mitigating the dissemination of Aspergillus during the cultivation of agricultural products or in the process of assuring agricultural product management, such as peanuts and onions.
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Affiliation(s)
- Tuan Vu Vo
- University
of Science, Vietnam National University, Ho Chi Minh City 700000, Vietnam
- Vietnam
National University, Ho Chi
Minh City 700000, Vietnam
| | - Nhat Thong Tran
- University
of Science, Vietnam National University, Ho Chi Minh City 700000, Vietnam
- Vietnam
National University, Ho Chi
Minh City 700000, Vietnam
| | - Phi Long My Nguyen
- University
of Science, Vietnam National University, Ho Chi Minh City 700000, Vietnam
- Vietnam
National University, Ho Chi
Minh City 700000, Vietnam
| | - Nguyen Ngan Nguyen
- University
of Science, Vietnam National University, Ho Chi Minh City 700000, Vietnam
- Department
of Chemical Engineering, Pohang University
of Science and Technology, Pohang 37673, Korea
| | - Ngoc Thuy Nguyen
- University
of Science, Vietnam National University, Ho Chi Minh City 700000, Vietnam
- Vietnam
National University, Ho Chi
Minh City 700000, Vietnam
| | - Trang Thi Thu Nguyen
- University
of Science, Vietnam National University, Ho Chi Minh City 700000, Vietnam
- Vietnam
National University, Ho Chi
Minh City 700000, Vietnam
| | - Thi Thanh Van Tran
- University
of Science, Vietnam National University, Ho Chi Minh City 700000, Vietnam
- Vietnam
National University, Ho Chi
Minh City 700000, Vietnam
| | - Vinh Phu Nguyen
- Faculty
of Basic Sciences, University of Medicine
and Pharmacy, Hue University, Hue
City 530000, Vietnam
| | - Hoa Tran Thai
- Department
of Chemistry, University of Sciences, Hue
University, Hue City 530000, Vietnam
| | - DongQuy Hoang
- University
of Science, Vietnam National University, Ho Chi Minh City 700000, Vietnam
- Vietnam
National University, Ho Chi
Minh City 700000, Vietnam
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6
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Tran NT, Ha D, Pham LH, Vo TV, Nguyen NN, Tran CK, Nguyen DM, Nguyen TTT, Van Tran TT, Nguyen PLM, Hoang D. Ag/SiO 2 nanoparticles stabilization with lignin derived from rice husk for antifungal and antibacterial activities. Int J Biol Macromol 2023; 230:123124. [PMID: 36599386 DOI: 10.1016/j.ijbiomac.2022.123124] [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: 09/09/2022] [Revised: 12/19/2022] [Accepted: 12/29/2022] [Indexed: 01/02/2023]
Abstract
Antibacterial materials have been developed for a long time but bacteria adapt very quickly and become resistant to these materials. This study focuses on the synthesis of a hybrid material system from lignin and silver/silica nanoparticles (Lig@Ag/SiO2 NPs) which were used against bacteria including Escherichia coli (E. coli) and Staphylococcus aureus (S. aureus) and inhibited the growth of the fungal Aspergillus flavus (A. flavus). The results showed that the spherical diameter of Lig@Ag/SiO2 NPs has narrow Gaussian distribution with a range from 15 nm to 40 nm in diameter. Moreover, there was no growth of E. coli in samples containing Lig@Ag/SiO2 NPs during 72-h incubation while colonies of S. aureus were only observed at high concentrations (106 CFU/mL) although both species of bacteria were able to thrive even at low bacterial concentration when they were exposed to Ag/SiO2 or lignin. For fungal resistance results, Lig@Ag/SiO2 NPs not only reduced mycelial growth but also inhibited sporulation in A. flavus, leading to decreasing the spreading of spores into the environment. This result represents a highly effective fungal growth inhibition of Lig@Ag/SiO2 NPs compared to lignin or Ag/SiO2, which could not inhibit the growth of sporulation.
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Affiliation(s)
- Nhat Thong Tran
- University of Science, Vietnam National University, Ho Chi Minh City 700000, Viet Nam; Vietnam National University, Ho Chi Minh City 700000, Viet Nam
| | - Dat Ha
- University of Science, Vietnam National University, Ho Chi Minh City 700000, Viet Nam; Vietnam National University, Ho Chi Minh City 700000, Viet Nam
| | - Lam H Pham
- University of Science, Vietnam National University, Ho Chi Minh City 700000, Viet Nam; Vietnam National University, Ho Chi Minh City 700000, Viet Nam
| | - Tuan Vu Vo
- University of Science, Vietnam National University, Ho Chi Minh City 700000, Viet Nam; Vietnam National University, Ho Chi Minh City 700000, Viet Nam
| | - Nguyen Ngan Nguyen
- University of Science, Vietnam National University, Ho Chi Minh City 700000, Viet Nam; Department of Chemical Engineering, Pohang University of Science and Technology, Pohang 37673, Republic of Korea
| | - Cong Khanh Tran
- University of Science, Vietnam National University, Ho Chi Minh City 700000, Viet Nam; Vietnam National University, Ho Chi Minh City 700000, Viet Nam
| | - Dang Mao Nguyen
- University of Science, Vietnam National University, Ho Chi Minh City 700000, Viet Nam; Laboratoire Innovation Matériau Bois Habitat (LIMBHA), Ecole supérieure du bois, 7 Rue Christian Pauc, 44306 Nantes, France.
| | - Trang Thi Thu Nguyen
- University of Science, Vietnam National University, Ho Chi Minh City 700000, Viet Nam; Vietnam National University, Ho Chi Minh City 700000, Viet Nam
| | - Thi Thanh Van Tran
- University of Science, Vietnam National University, Ho Chi Minh City 700000, Viet Nam; Vietnam National University, Ho Chi Minh City 700000, Viet Nam
| | - Phi Long My Nguyen
- University of Science, Vietnam National University, Ho Chi Minh City 700000, Viet Nam; Vietnam National University, Ho Chi Minh City 700000, Viet Nam.
| | - DongQuy Hoang
- University of Science, Vietnam National University, Ho Chi Minh City 700000, Viet Nam; Vietnam National University, Ho Chi Minh City 700000, Viet Nam.
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Chen M, Li Y, Liu H, Zhang D, Shi QS, Zhong XQ, Guo Y, Xie XB. High value valorization of lignin as environmental benign antimicrobial. Mater Today Bio 2023; 18:100520. [PMID: 36590981 PMCID: PMC9800644 DOI: 10.1016/j.mtbio.2022.100520] [Citation(s) in RCA: 10] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2022] [Revised: 12/08/2022] [Accepted: 12/10/2022] [Indexed: 12/23/2022] Open
Abstract
Lignin is a natural aromatic polymer of p-hydroxyphenylpropanoids with various biological activities. Noticeably, plants have made use of lignin as biocides to defend themselves from pathogen microbial invasions. Thus, the use of isolated lignin as environmentally benign antimicrobial is believed to be a promising high value approach for lignin valorization. On the other hand, as green and sustainable product of plant photosynthesis, lignin should be beneficial to reduce the carbon footprint of antimicrobial industry. There have been many reports that make use of lignin to prepare antimicrobials for different applications. However, lignin is highly heterogeneous polymers different in their monomers, linkages, molecular weight, and functional groups. The structure and property relationship, and the mechanism of action of lignin as antimicrobial remains ambiguous. To show light on these issues, we reviewed the publications on lignin chemistry, antimicrobial activity of lignin models and isolated lignin and associated mechanism of actions, approaches in synthesis of lignin with improved antimicrobial activity, and the applications of lignin as antimicrobial in different fields. Hopefully, this review will help and inspire researchers in the preparation of lignin antimicrobial for their applications.
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Affiliation(s)
- Mingjie Chen
- Key Laboratory of Agricultural Microbiomics and Precision Application (MARA), Guangdong Provincial Key Laboratory of Microbial Culture Collection and Application, Key Laboratory of Agricultural Microbiome (MARA), State Key Laboratory of Applied Microbiology Southern China, Institute of Microbiology, Guangdong Academy of Sciences, Guangzhou, 510070, China
| | - Yan Li
- Key Laboratory of Agricultural Microbiomics and Precision Application (MARA), Guangdong Provincial Key Laboratory of Microbial Culture Collection and Application, Key Laboratory of Agricultural Microbiome (MARA), State Key Laboratory of Applied Microbiology Southern China, Institute of Microbiology, Guangdong Academy of Sciences, Guangzhou, 510070, China
- Liaoning Key Lab of Lignocellulose Chemistry and BioMaterials, Liaoning Collaborative Innovation Center for Lignocellulosic Biorefinery, College of Light Industry and Chemical Engineering, Dalian Polytechnic University, Dalian, 116034, China
| | - Huiming Liu
- Key Laboratory of Agricultural Microbiomics and Precision Application (MARA), Guangdong Provincial Key Laboratory of Microbial Culture Collection and Application, Key Laboratory of Agricultural Microbiome (MARA), State Key Laboratory of Applied Microbiology Southern China, Institute of Microbiology, Guangdong Academy of Sciences, Guangzhou, 510070, China
| | - Dandan Zhang
- Key Laboratory of Agricultural Microbiomics and Precision Application (MARA), Guangdong Provincial Key Laboratory of Microbial Culture Collection and Application, Key Laboratory of Agricultural Microbiome (MARA), State Key Laboratory of Applied Microbiology Southern China, Institute of Microbiology, Guangdong Academy of Sciences, Guangzhou, 510070, China
| | - Qing-Shan Shi
- Key Laboratory of Agricultural Microbiomics and Precision Application (MARA), Guangdong Provincial Key Laboratory of Microbial Culture Collection and Application, Key Laboratory of Agricultural Microbiome (MARA), State Key Laboratory of Applied Microbiology Southern China, Institute of Microbiology, Guangdong Academy of Sciences, Guangzhou, 510070, China
| | - Xin-Qi Zhong
- Department of Neonatology, The Third Affiliated Hospital of Guangzhou Medical University, Guangzhou, 510150, China
| | - Yanzhu Guo
- Liaoning Key Lab of Lignocellulose Chemistry and BioMaterials, Liaoning Collaborative Innovation Center for Lignocellulosic Biorefinery, College of Light Industry and Chemical Engineering, Dalian Polytechnic University, Dalian, 116034, China
| | - Xiao-Bao Xie
- Key Laboratory of Agricultural Microbiomics and Precision Application (MARA), Guangdong Provincial Key Laboratory of Microbial Culture Collection and Application, Key Laboratory of Agricultural Microbiome (MARA), State Key Laboratory of Applied Microbiology Southern China, Institute of Microbiology, Guangdong Academy of Sciences, Guangzhou, 510070, China
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8
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He Y, Ye HC, You TT, Xu F. Sustainable and multifunctional cellulose-lignin films with excellent antibacterial and UV-shielding for active food packaging. Food Hydrocoll 2022. [DOI: 10.1016/j.foodhyd.2022.108355] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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9
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Morena AG, Tzanov T. Antibacterial lignin-based nanoparticles and their use in composite materials. NANOSCALE ADVANCES 2022; 4:4447-4469. [PMID: 36341306 PMCID: PMC9595106 DOI: 10.1039/d2na00423b] [Citation(s) in RCA: 16] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/29/2022] [Accepted: 09/19/2022] [Indexed: 06/01/2023]
Abstract
Lignin, one of the most abundant biopolymers on earth, has been traditionally considered a low-value by-product of the pulp and paper industries. This renewable raw material, besides being a source of valuable molecules for the chemical industry, also has antioxidant, UV-absorbing, and antibacterial properties in its macromolecular form. Moreover, lignin in the form of nanoparticles (LigNPs) presents advantages over bulk lignin, such as higher reactivity due to its larger surface-to-volume ratio. In view of the rapid surge of antimicrobial resistance (AMR), caused by the overuse of antibiotics, continuous development of novel antibacterial agents is needed. The use of LigNPs as antibacterial agents is a suitable alternative to conventional antibiotics for topical application or chemical disinfectants for surfaces and packaging. Besides, their multiple and unspecific targets in the bacterial cell may prevent the emergence of AMR. This review summarizes the latest developments in antibacterial nano-formulated lignin, both in dispersion and embedded in materials. The following roles of lignin in the formulation of antibacterial NPs have been analyzed: (i) an antibacterial active in nanoformulations, (ii) a reducing and capping agent for antimicrobial metals, and (iii) a carrier of other antibacterial agents. Finally, the review covers the inclusion of LigNPs in films, fibers, hydrogels, and foams, for obtaining antibacterial lignin-based nanocomposites for a variety of applications, including food packaging, wound healing, and medical coatings.
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Affiliation(s)
- A Gala Morena
- Group of Molecular and Industrial Biotechnology, Department of Chemical Engineering, Universitat Politècnica de Catalunya Rambla Sant Nebridi 22 Terrassa 08222 Spain +34 93 739 82 25 +34 93 739 85 70
| | - Tzanko Tzanov
- Group of Molecular and Industrial Biotechnology, Department of Chemical Engineering, Universitat Politècnica de Catalunya Rambla Sant Nebridi 22 Terrassa 08222 Spain +34 93 739 82 25 +34 93 739 85 70
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10
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Xu Y, Xu Y, Chen H, Gao M, Yue X, Ni Y. Redispersion of dried plant nanocellulose: A review. Carbohydr Polym 2022; 294:119830. [PMID: 35868740 DOI: 10.1016/j.carbpol.2022.119830] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2022] [Revised: 07/01/2022] [Accepted: 07/01/2022] [Indexed: 01/01/2023]
Abstract
Nanocellulose has undergone substantial development as a high value-added cellulose product with broad applications. Dried products are advantageous to decrease transportation costs. However, dried nanocellulose has redispersion challenges when rewetting. In this work, drying techniques, factors affecting redispersibility, and strategies improving the nanocellulose redispersibility are comprehensively reviewed. Hydrogen bonds of nanocellulose are unavoidably developed during drying, leading to inferior redispersibility of dried nanocellulose, even hornification. Drying processes of nanocellulose are discussed first. Then, factors affecting redispersibility are discussed. Following that, strategies improving the nanocellulose redispersibility are analyzed and their advantages and disadvantages are highlighted. Surface charge modification and steric hindrance concept are two main pathways to overcome the redispersion challenge, which are mainly carried out by chemical modification, additive incorporation and non-cellulosic component preservation. Despite several advancements having been achieved, new approaches for enhancing the nanocellulose redispersibility are still required to promote the industrial-scale applications of nanocellulose in various domains.
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Affiliation(s)
- Yang Xu
- College of Bioresources Chemical and Materials Engineering, Shaanxi University of Science & Technology, Xi'an, Shaanxi 710021, China; Shaanxi Province Key Lab of Papermaking Technology and Specialty Paper, National Demonstration Center for Experimental Light Chemistry Engineering Education, Shaanxi University of Science & Technology, Xi'an, Shaanxi 710021, China
| | - Yongjian Xu
- College of Bioresources Chemical and Materials Engineering, Shaanxi University of Science & Technology, Xi'an, Shaanxi 710021, China; Shaanxi Province Key Lab of Papermaking Technology and Specialty Paper, National Demonstration Center for Experimental Light Chemistry Engineering Education, Shaanxi University of Science & Technology, Xi'an, Shaanxi 710021, China.
| | - Hao Chen
- College of Bioresources Chemical and Materials Engineering, Shaanxi University of Science & Technology, Xi'an, Shaanxi 710021, China; Shaanxi Province Key Lab of Papermaking Technology and Specialty Paper, National Demonstration Center for Experimental Light Chemistry Engineering Education, Shaanxi University of Science & Technology, Xi'an, Shaanxi 710021, China
| | - Minlan Gao
- College of Bioresources Chemical and Materials Engineering, Shaanxi University of Science & Technology, Xi'an, Shaanxi 710021, China; Shaanxi Province Key Lab of Papermaking Technology and Specialty Paper, National Demonstration Center for Experimental Light Chemistry Engineering Education, Shaanxi University of Science & Technology, Xi'an, Shaanxi 710021, China
| | - Xiaopeng Yue
- College of Bioresources Chemical and Materials Engineering, Shaanxi University of Science & Technology, Xi'an, Shaanxi 710021, China; Shaanxi Province Key Lab of Papermaking Technology and Specialty Paper, National Demonstration Center for Experimental Light Chemistry Engineering Education, Shaanxi University of Science & Technology, Xi'an, Shaanxi 710021, China
| | - Yonghao Ni
- Department of Chemical Engineering, University of New Brunswick, Fredericton, New Brunswick E3B 5A3, Canada.
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Yan Y, He C, Zhang L, Dong H, Zhang X. Freeze-resistant, rapidly polymerizable, ionic conductive hydrogel induced by Deep Eutectic Solvent (DES) after lignocellulose pretreatment for flexible sensors. Int J Biol Macromol 2022; 224:143-155. [DOI: 10.1016/j.ijbiomac.2022.10.111] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2022] [Revised: 09/24/2022] [Accepted: 10/12/2022] [Indexed: 11/05/2022]
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Antimicrobial Potential of Conjugated Lignin/Morin/Chitosan Combinations as a Function of System Complexity. Antibiotics (Basel) 2022; 11:antibiotics11050650. [PMID: 35625293 PMCID: PMC9137768 DOI: 10.3390/antibiotics11050650] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2022] [Revised: 05/05/2022] [Accepted: 05/09/2022] [Indexed: 02/04/2023] Open
Abstract
As natural biopolymers, chitosan and lignin are characterized by their good biocompatibility, high biodegradability and satisfactory biosafety. The active polymers’ functional groups are responsible for the potential of these biomaterials for use as carrier matrices in the construction of polymer−drug conjugates with prospective applicability in the fields of medicine, food and agriculture—subjects that have attracted attention in recent years. Hence, the aim of this research was to place substantial emphasis on the antimicrobial potential of flavonoid−biopolymer complex systems by assessment of the probable synergetic, additive or antagonistic effects arising as a function of systemic complexity. The joint implementation of morin, chitosan and lignin in conjugated two- and three-component systems provoked species-dependent antimicrobial synergistic and/or potentiation effects against the activity of the tested bacterial strains Staphylococcus aureus ATCC 25923, Escherichia coli ATCC 25922, Pseudomonas aeruginosa ATCC 27853 and the clinical isolate Bacillus cereus. The double combinations of morin−chitosan and morin−lignin resulted in a 100% increase in their inhibitory activity against S. aureus as compared to the pure biocompounds. The inhibitory effects of the three-component system, in decreasing order, were: S. aureus (IZ = 15.7 mm) > P. aeruginosa (IZ = 15 mm) > B. cereus and E. coli (IZ = 14 mm). All tested morin-containing two- and three-component systems exhibited clear and significant potentiation effects, especially against S. aureus and B. cereus. The results obtained are a prerequisite for the potential use of the studied conjugated lignin−morin−chitosan combinations in the construction of novel drug-carrier formulations with improved bioactivities.
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