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Ren H, Chen Y, Labidi A, Zhao K, Xu X, Othman SI, Allam AA, Rudayni HA, Wang C. Transforming bio-waste lignin into amine functionalized carbon quantum dots for selective detection of trace Cu 2+ in aqueous system. Int J Biol Macromol 2024; 273:133118. [PMID: 38871106 DOI: 10.1016/j.ijbiomac.2024.133118] [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: 02/01/2024] [Revised: 05/22/2024] [Accepted: 06/10/2024] [Indexed: 06/15/2024]
Abstract
Developing carbon quantum dots (CQDs) from bio-waste lignin for effectively detecting Cu2+ is of great significance for promoting the value-added utilization of lignin resources. However, the limited amount of surface-active groups and low quantum yield of lignin-based CQDs hinder their application in this regard. Herein, bio-waste lignin was converted into value-added amine functionalized CQDs using a facile two-step hydrothermal approach. The as-synthesized CQDs modified with amino groups exhibit bright green fluorescence, abundant surface functional groups, high water solubility and uniform particle size (3.9 nm). Systematic analysis demonstrates that the rich NH2 groups (~12.3 %) on the CQDs backbone improve their fluorescence properties (quantum yield increased from 3.4 % to 21.1 %) and specific detection ability for Cu2+. The developed NH2-CQDs serve as an efficient fluorescent probe, displaying high sensitivity and selectivity towards Cu2+ in aqueous system, with a detection limit of 2.42 μmol/L, which is lower than the maximum permitted amount of Cu2+ in drinking water (20 μmol/L). The detection mechanism of NH2-CQDs for Cu2+ is attributed to the synergy of static quenching and photo-induced electron transfer. This study provides a valuable reference for the synthesis of high-quality fluorescent CQDs from lignin resources and the effective detection of trace Cu2+ in aquatic environments.
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Affiliation(s)
- Haitao Ren
- School of Environmental Science and Engineering, Shaanxi University of Science and Technology, Xi'an 710021, PR China
| | - Yuqing Chen
- School of Environmental Science and Engineering, Shaanxi University of Science and Technology, Xi'an 710021, PR China
| | - Abdelkader Labidi
- School of Environmental Science and Engineering, Shaanxi University of Science and Technology, Xi'an 710021, PR China
| | - Ke Zhao
- College of Chemistry and Chemical Engineering, Shihezi University, Key Laboratory of Environmental Monitoring and Pollutant Control, Xinjiang 832003, PR China
| | - Xiaoqian Xu
- School of Environmental Science and Engineering, Shaanxi University of Science and Technology, Xi'an 710021, PR China
| | - Sarah I Othman
- Department of Biology, College of Science, Princess Nourah bint Abdulrahman University, P. O. BOX 84428, Riyadh 11671, Saudi Arabia
| | - Ahmed A Allam
- Department of Biology, College of Science, Imam Mohammad Ibn Saud Islamic University, Riyadh 11623, Saudi Arabia
| | - Hassan Ahmad Rudayni
- Department of Biology, College of Science, Imam Mohammad Ibn Saud Islamic University, Riyadh 11623, Saudi Arabia
| | - Chuanyi Wang
- School of Environmental Science and Engineering, Shaanxi University of Science and Technology, Xi'an 710021, PR China.
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2
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Talekar S, Barrow CJ, Nguyen HC, Zolfagharian A, Zare S, Farjana SH, Macreadie PI, Ashraf M, Trevathan-Tackett SM. Using waste biomass to produce 3D-printed artificial biodegradable structures for coastal ecosystem restoration. THE SCIENCE OF THE TOTAL ENVIRONMENT 2024; 925:171728. [PMID: 38492597 DOI: 10.1016/j.scitotenv.2024.171728] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/23/2023] [Revised: 03/02/2024] [Accepted: 03/13/2024] [Indexed: 03/18/2024]
Abstract
The loss of ecosystem functions and services caused by rapidly declining coastal marine ecosystems, including corals and bivalve reefs and wetlands, around the world has sparked significant interest in interdisciplinary methods to restore these ecologically and socially important ecosystems. In recent years, 3D-printed artificial biodegradable structures that mimic natural life stages or habitat have emerged as a promising method for coastal marine restoration. The effectiveness of this method relies on the availability of low-cost biodegradable printing polymers and the development of 3D-printed biomimetic structures that efficiently support the growth of plant and sessile animal species without harming the surrounding ecosystem. In this context, we present the potential and pathway for utilizing low-cost biodegradable biopolymers from waste biomass as printing materials to fabricate 3D-printed biodegradable artificial structures for restoring coastal marine ecosystems. Various waste biomass sources can be used to produce inexpensive biopolymers, particularly those with the higher mechanical rigidity required for 3D-printed artificial structures intended to restore marine ecosystems. Advancements in 3D printing methods, as well as biopolymer modifications and blending to address challenges like biopolymer solubility, rheology, chemical composition, crystallinity, plasticity, and heat stability, have enabled the fabrication of robust structures. The ability of 3D-printed structures to support species colonization and protection was found to be greatly influenced by their biopolymer type, surface topography, structure design, and complexity. Considering limited studies on biodegradability and the effect of biodegradation products on marine ecosystems, we highlight the need for investigating the biodegradability of biopolymers in marine conditions as well as the ecotoxicity of the degraded products. Finally, we present the challenges, considerations, and future perspectives for designing tunable biomimetic 3D-printed artificial biodegradable structures from waste biomass biopolymers for large-scale coastal marine restoration.
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Affiliation(s)
- Sachin Talekar
- School of Life and Environmental Sciences, Deakin University, Waurn Ponds, Victoria 3216, Australia; ARC Industrial Transformation Training Centre for Green Chemistry in Manufacturing, Deakin University, Waurn Ponds, Victoria 3216, Australia; Centre for Sustainable Bioproducts, Deakin University, Waurn Ponds, Victoria 3216, Australia
| | - Colin J Barrow
- School of Life and Environmental Sciences, Deakin University, Waurn Ponds, Victoria 3216, Australia; ARC Industrial Transformation Training Centre for Green Chemistry in Manufacturing, Deakin University, Waurn Ponds, Victoria 3216, Australia; Centre for Sustainable Bioproducts, Deakin University, Waurn Ponds, Victoria 3216, Australia.
| | - Hoang Chinh Nguyen
- School of Life and Environmental Sciences, Deakin University, Waurn Ponds, Victoria 3216, Australia; Centre for Sustainable Bioproducts, Deakin University, Waurn Ponds, Victoria 3216, Australia
| | - Ali Zolfagharian
- School of Engineering, Deakin University, Waurn Ponds, Victoria 3216, Australia
| | - Shahab Zare
- School of Engineering, Deakin University, Waurn Ponds, Victoria 3216, Australia
| | | | - Peter I Macreadie
- Deakin Marine Research and Innovation Centre, School of Life and Environmental Sciences, Deakin University, Burwood, Victoria 3125, Australia
| | - Mahmud Ashraf
- School of Engineering, Deakin University, Waurn Ponds, Victoria 3216, Australia
| | - Stacey M Trevathan-Tackett
- Deakin Marine Research and Innovation Centre, School of Life and Environmental Sciences, Deakin University, Burwood, Victoria 3125, Australia
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Peracchi LM, Panahabadi R, Barros-Rios J, Bartley LE, Sanguinet KA. Grass lignin: biosynthesis, biological roles, and industrial applications. FRONTIERS IN PLANT SCIENCE 2024; 15:1343097. [PMID: 38463570 PMCID: PMC10921064 DOI: 10.3389/fpls.2024.1343097] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/22/2023] [Accepted: 02/06/2024] [Indexed: 03/12/2024]
Abstract
Lignin is a phenolic heteropolymer found in most terrestrial plants that contributes an essential role in plant growth, abiotic stress tolerance, and biotic stress resistance. Recent research in grass lignin biosynthesis has found differences compared to dicots such as Arabidopsis thaliana. For example, the prolific incorporation of hydroxycinnamic acids into grass secondary cell walls improve the structural integrity of vascular and structural elements via covalent crosslinking. Conversely, fundamental monolignol chemistry conserves the mechanisms of monolignol translocation and polymerization across the plant phylum. Emerging evidence suggests grass lignin compositions contribute to abiotic stress tolerance, and periods of biotic stress often alter cereal lignin compositions to hinder pathogenesis. This same recalcitrance also inhibits industrial valorization of plant biomass, making lignin alterations and reductions a prolific field of research. This review presents an update of grass lignin biosynthesis, translocation, and polymerization, highlights how lignified grass cell walls contribute to plant development and stress responses, and briefly addresses genetic engineering strategies that may benefit industrial applications.
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Affiliation(s)
- Luigi M. Peracchi
- Department of Crop and Soil Sciences, Washington State University, Pullman, WA, United States
| | - Rahele Panahabadi
- Institute of Biological Chemistry, Washington State University, Pullman, WA, United States
| | - Jaime Barros-Rios
- Division of Plant Sciences and Interdisciplinary Plant Group, University of Missouri, Columbia, MO, United States
| | - Laura E. Bartley
- Institute of Biological Chemistry, Washington State University, Pullman, WA, United States
| | - Karen A. Sanguinet
- Department of Crop and Soil Sciences, Washington State University, Pullman, WA, United States
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4
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Pavaneli G, da Silva TA, Zawadzki SF, Sassaki GL, de Freitas RA, Ramos LP. Production of highly antioxidant lignin nanoparticles from a hardwood technical lignin. Int J Biol Macromol 2024; 257:128612. [PMID: 38070366 DOI: 10.1016/j.ijbiomac.2023.128612] [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: 05/11/2023] [Revised: 11/23/2023] [Accepted: 11/30/2023] [Indexed: 01/26/2024]
Abstract
Eucalypt kraft lignin isolated in a LignoBoost™ pilot plant was characterized by GC-MS, ICP-OES, DSC, HPSEC, 31P NMR, and HSQC 2D-NMR to be used without any further processing to produce lignin nanoparticles (LNPs) by nanoprecipitation. Tetrahydrofuran (THF) was used as a solvent, and water as a non-solvent. Microscopic analysis (TEM) showed that LNPs were regularly spherical with some hollow particles dispersed in-between, and sizes were tunable by changing the solvent dripping rate onto the non-solvent. LNP particle sizes had a bimodal distribution, with the largest population having an average apparent hydrodynamic diameter ranging from 105.6 to 75.6 nm. Colloidal dispersions of LNPs in water presented good stability in different dilutions without significant size changes upon storage at pH close to neutral for as long as 45 days. Zeta potentials around -40 mV were obtained for LNP suspensions at pH ranging from 7 to 9. The high carbohydrate content (circa 10 % on a dry basis, mostly xylans) of the lignin precursor did not interfere in LNP formation, whose antioxidant activity was expressive as demonstrated by the ABTS assay at pH 7.4, with an EC50 of 4.04 μg mL-1. Also, the Trolox® equivalent antioxidant capacity (TEAC) of LNPs reached 1.90 after 40 min reaction time.
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Affiliation(s)
- Giuliana Pavaneli
- Department of Chemistry, Federal University of Paraná, P.O. Box 19032, Curitiba, PR 81531-980, Brazil
| | | | - Sônia Faria Zawadzki
- Department of Chemistry, Federal University of Paraná, P.O. Box 19032, Curitiba, PR 81531-980, Brazil
| | - Guilherme Lanzi Sassaki
- Department of Biochemistry and Molecular Biology, Federal University of Paraná, P.O. Box 19046, Curitiba, PR 81531-980, Brazil
| | - Rilton Alves de Freitas
- Department of Pharmacy, Federal University of Paraná, P.O. Box 19005, Curitiba, PR 80210-170, Brazil
| | - Luiz Pereira Ramos
- Department of Chemistry, Federal University of Paraná, P.O. Box 19032, Curitiba, PR 81531-980, Brazil.
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5
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Jiang B, Zheng Y, Goto A. One-Pot Reversible Complexation-Mediated Polymerization (RCMP) from Benzylic Alcohols for Facile Access to Polymer-Grafted Lignin. Angew Chem Int Ed Engl 2024; 63:e202314805. [PMID: 38009549 DOI: 10.1002/anie.202314805] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2023] [Revised: 11/24/2023] [Accepted: 11/27/2023] [Indexed: 11/29/2023]
Abstract
One-pot synthesis of methacrylic and acrylic polymers from benzylic alcohols (R-OH) used as initiating moieties was developed. R-OH was converted to alkyl iodide (R-I), and the generated R-I was used as an initiator without purification or isolation in the subsequent reversible complexation mediated polymerization (RCMP), leading to one-pot RCMP from R-OH. As a useful application, this technique was exploited for one-pot polymer-grafting from lignin that is the second most abundant renewable carbon-source on earth and bears benzylic alcohols. The direct initiation from lignin eliminates tedious initiator attachment and purification, offering a facile access to polymer-grafted lignin. The obtained polymer-grafted lignin was utilized to form an efficient UV-absorbing film with high transparency in visible region. One-pot RCMP may serve as a practical method to obtain value-added functional lignin-polymer composites.
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Affiliation(s)
- Bo Jiang
- School of Chemistry, Chemical Engineering and Biotechnology, Nanyang Technological University, 62 Nanyang Drive, 637459, Singapore, Singapore
| | - Yichao Zheng
- School of Chemistry, Chemical Engineering and Biotechnology, Nanyang Technological University, 62 Nanyang Drive, 637459, Singapore, Singapore
| | - Atsushi Goto
- School of Chemistry, Chemical Engineering and Biotechnology, Nanyang Technological University, 62 Nanyang Drive, 637459, Singapore, Singapore
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6
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Ou Y, Xing Y, Yang Z, Huang J, He J, Jiang F, Zhang Y. Strong and ultrafast stimulus-healable lignin-based composite elastomers with excellent adhesion properties. Int J Biol Macromol 2024; 256:128507. [PMID: 38040144 DOI: 10.1016/j.ijbiomac.2023.128507] [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: 09/12/2023] [Revised: 11/27/2023] [Accepted: 11/28/2023] [Indexed: 12/03/2023]
Abstract
With the increased environmental issues, advanced high-performance and multifunctional polymeric materials derived from biomass have tremendous attention due to the great potential to replace their traditional petroleum-based counterparts. In this work, a series of lignin graft copolymers, lignin-graft-poly(n-butyl acrylate-co-acrylic acid) (Lig-g-P(BA-co-AA)), were rationally prepared via reversible addition-fragmentation chain transfer (RAFT) polymerization. These lignin-based copolymers demonstrate good thermal stability and tunable glass transition temperature (Tg) values. The mechanical performance, including tensile strength, extensibility, Young's modulus, and toughness can be facilely adjusted by the BA/AA feed ratio and lignin content during polymerization. Owing to the extraordinary photothermal conversion ability of lignin, the Lig-B550 copolymer, containing 11.8 wt% lignin content, shows excellent stimulus-healing behavior within 1 min with a 97.1 % healing efficiency under near-infrared (NIR) laser irradiation. Moreover, the Lig-g-P(BA-co-AA) copolymers exhibit remarkable adhesion property, broadening their potential applications in the adhesive area. This grafting strategy is versatile and efficient, conferring the resultant lignin-based composite elastomers with dramatically enhanced mechanical properties and unprecedented photothermal behavior, which can inspire the further development of strong lignin-based sustainable elastomers.
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Affiliation(s)
- Yangtao Ou
- Biomass Molecular Engineering Center, Anhui Provincial Engineering Center for High Performance Biobased Nylons, Department of Materials Science and Engineering, Anhui Agricultural University, Hefei, Anhui 230036, China
| | - Yuxian Xing
- Biomass Molecular Engineering Center, Anhui Provincial Engineering Center for High Performance Biobased Nylons, Department of Materials Science and Engineering, Anhui Agricultural University, Hefei, Anhui 230036, China
| | - Zhiyuan Yang
- Biomass Molecular Engineering Center, Anhui Provincial Engineering Center for High Performance Biobased Nylons, Department of Materials Science and Engineering, Anhui Agricultural University, Hefei, Anhui 230036, China
| | - Jiajing Huang
- Biomass Molecular Engineering Center, Anhui Provincial Engineering Center for High Performance Biobased Nylons, Department of Materials Science and Engineering, Anhui Agricultural University, Hefei, Anhui 230036, China
| | - Juan He
- Biomass Molecular Engineering Center, Anhui Provincial Engineering Center for High Performance Biobased Nylons, Department of Materials Science and Engineering, Anhui Agricultural University, Hefei, Anhui 230036, China
| | - Feng Jiang
- Biomass Molecular Engineering Center, Anhui Provincial Engineering Center for High Performance Biobased Nylons, Department of Materials Science and Engineering, Anhui Agricultural University, Hefei, Anhui 230036, China.
| | - Yaqiong Zhang
- Biomass Molecular Engineering Center, Anhui Provincial Engineering Center for High Performance Biobased Nylons, Department of Materials Science and Engineering, Anhui Agricultural University, Hefei, Anhui 230036, China.
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7
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Perveen S, Zhai R, Zhang Y, Kawish M, Shah MR, Chen S, Xu Z, Qiufeng D, Jin M. Boosting photo-induced antimicrobial activity of lignin nanoparticles with curcumin and zinc oxide. Int J Biol Macromol 2023; 253:127433. [PMID: 37838113 DOI: 10.1016/j.ijbiomac.2023.127433] [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: 07/21/2023] [Revised: 09/14/2023] [Accepted: 10/11/2023] [Indexed: 10/16/2023]
Abstract
Lignin nanoparticles have gained increasing attention as a potential antimicrobial agent due to their biocompatibility, biodegradability, and low toxicity. However, the limited ability of lignin to act as an antibacterial is a major barrier to its widespread use. Thus, it is crucial to develop novel approaches to amplify lignin's biological capabilities in order to promote its effective utilization. In this study, we modified lignin nanoparticles (LNPs) with photo-active curcumin (Cur), zinc oxide (ZnO), or a combination of both to enhance their antimicrobial properties. The successful modifications of LNPs were confirmed using comprehensive characterization techniques. The antimicrobial efficacy of the modified LNPs was assessed against both gram-positive and gram-negative bacterial strains. The results showed that the modification of LNPs with Cur and ZnO have much higher antibacterial and antibiofilm activities than unmodified LNPs. Moreover, photo illumination resulted in even higher antibacterial activity. Furthermore, atomic force microscopy revealed bacterial cells lysis and membrane damage by ZnO/Cur modified LNPs. Our research demonstrates that ZnO/Cur modified LNPs can serve as novel hybrid materials with enhanced antimicrobial capabilities. In addition, the photo-induced enhancement in antibacterial activity not only demonstrated the versatility of this hybrid material but also opened up interesting potential for bioinspired therapeutics agents.
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Affiliation(s)
- Samina Perveen
- School of Environmental and Biological Engineering, Nanjing University of Science and Technology, 200 Xiaolingwei Street, Nanjing 210094, China
| | - Rui Zhai
- School of Environmental and Biological Engineering, Nanjing University of Science and Technology, 200 Xiaolingwei Street, Nanjing 210094, China.
| | - Yuwei Zhang
- School of Environmental and Biological Engineering, Nanjing University of Science and Technology, 200 Xiaolingwei Street, Nanjing 210094, China
| | - Muhammad Kawish
- International Center for Chemical and Biological Sciences, H.E.J. Research Institute of Chemistry, University of Karachi, Karachi 75270, Pakistan
| | - Muhammad Raza Shah
- International Center for Chemical and Biological Sciences, H.E.J. Research Institute of Chemistry, University of Karachi, Karachi 75270, Pakistan
| | - Sitong Chen
- School of Environmental and Biological Engineering, Nanjing University of Science and Technology, 200 Xiaolingwei Street, Nanjing 210094, China
| | - Zhaoxian Xu
- School of Environmental and Biological Engineering, Nanjing University of Science and Technology, 200 Xiaolingwei Street, Nanjing 210094, China
| | - Deng Qiufeng
- School of Environmental and Biological Engineering, Nanjing University of Science and Technology, 200 Xiaolingwei Street, Nanjing 210094, China
| | - Mingjie Jin
- School of Environmental and Biological Engineering, Nanjing University of Science and Technology, 200 Xiaolingwei Street, Nanjing 210094, China.
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8
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Wu Z, Lin X, Teng J, Li M, Song J, Huang C, Wang R, Ying H, Zhang L, Zhu C. Recent Advances of Lignin Functionalization for High-Performance and Advanced Functional Rubber Composites. Biomacromolecules 2023; 24:4553-4567. [PMID: 37813827 DOI: 10.1021/acs.biomac.3c00606] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/11/2023]
Abstract
The biomass lignin is the only large-volume renewable feedstock that is composed of aromatics but has been largely underutilized and is sought for valorization as a value-added material. Recent research has highlighted lignin as a promising alternative to traditional petrol-based reinforcements and functional additives for rubber composites. This review summarized the recent advances in the functionalization of lignin for a variety of rubber composites, as well as the compounding techniques for effectively dispersing lignin within the rubber matrix. Significant progress has been achieved in the development of high-performance and advanced functional rubber/lignin composites through carefully designing the structure of lignin-based additives and the optimization of interfacial morphologies. This Review discussed the effect of lignin on composite properties, including mechanical reinforcement, dynamic properties, antiaging performance, and oil resistance, and also the advanced stimuli-responsive performance in detail. A critical analysis for the future development of rubber/lignin composites is presented as concluding remarks.
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Affiliation(s)
- Zhengzhe Wu
- College of Biotechnology and Pharmaceutical Engineering, Nanjing Tech University, Nanjing 211816, China
| | - Xiran Lin
- College of Biotechnology and Pharmaceutical Engineering, Nanjing Tech University, Nanjing 211816, China
| | - Jiye Teng
- College of Biotechnology and Pharmaceutical Engineering, Nanjing Tech University, Nanjing 211816, China
| | - Ming Li
- College of Biotechnology and Pharmaceutical Engineering, Nanjing Tech University, Nanjing 211816, China
| | - Junlong Song
- Jiangsu Co-Innovation Center for Efficient Processing and Utilization of Forest Resources, International Innovation Center for Forest Chemicals and Materials, Nanjing Forestry University, Nanjing 210037, China
| | - Caoxing Huang
- Jiangsu Co-Innovation Center for Efficient Processing and Utilization of Forest Resources, International Innovation Center for Forest Chemicals and Materials, Nanjing Forestry University, Nanjing 210037, China
| | - Runguo Wang
- Center of Advanced Elastomer Materials, College of Materials Science and Engineering, Beijing University of Chemical Technology, Beijing 100029, China
| | - Hanjie Ying
- College of Biotechnology and Pharmaceutical Engineering, Nanjing Tech University, Nanjing 211816, China
| | - Liqun Zhang
- Center of Advanced Elastomer Materials, College of Materials Science and Engineering, Beijing University of Chemical Technology, Beijing 100029, China
- Department of Emergent Elastomers, School of Materials Science and Engineering, South China University of Technology, Guangzhou 510641, China
| | - Chenjie Zhu
- College of Biotechnology and Pharmaceutical Engineering, Nanjing Tech University, Nanjing 211816, China
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Peng W, Bao H, Wang Y, Cote E, Sagues WJ, Hagelin-Weaver H, Gao J, Xiao D, Tong Z. Selective Depolymerization of Lignin Towards Isolated Phenolic Acids Under Mild Conditions. CHEMSUSCHEM 2023; 16:e202300750. [PMID: 37419862 DOI: 10.1002/cssc.202300750] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/29/2023] [Revised: 07/04/2023] [Accepted: 07/07/2023] [Indexed: 07/09/2023]
Abstract
The selective transformation of lignin to value-added biochemicals (e. g., phenolic acids) in high yields is incredibly challenging due to its structural complexity and many possible reaction pathways. Phenolic acids (PA) are key building blocks for various aromatic polymers, but the isolation of PAs from lignin is below 5 wt.% and requires harsh reaction conditions. Herein, we demonstrate an effective route to selectively convert lignin extracted from sweet sorghum and poplar into isolated PA in a high yield (up to 20 wt.% of lignin) using a low-cost graphene oxide-urea hydrogen peroxide (GO-UHP) catalyst under mild conditions (<120 °C). The lignin conversion yield is up to 95 %, and the remaining low molecular weight organic oils are ready for aviation fuel production to complete lignin utilization. Mechanistic studies demonstrate that pre-acetylation allows the selective depolymerization of lignin to aromatic aldehydes with a decent yield by GO through the Cα activation of β-O-4 cleavage. A urea-hydrogen peroxide (UHP) oxidative process is followed to transform aldehydes in the depolymerized product to PAs by avoiding the undesired Dakin side reaction due to the electron-withdrawing effect of the acetyl group. This study opens a new way to selectively cleave lignin side chains to isolated biochemicals under mild conditions.
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Affiliation(s)
- Wenbo Peng
- School of Chemical & Biomolecular Engineering Renewable Bioproduct Institute, Georgia Institute of Technology, Atlanta, GA 30318, USA
| | - Hanxi Bao
- Department of Agricultural and Biological Engineering, Institute of Food and Agricultural Sciences (IFAS), University of Florida, Raleigh, NC 27695, USA
| | - Yigui Wang
- Center for Integrative Materials Discovery, Department of Chemistry and Chemical Engineering, University of New Haven, West Haven, CT 06516, USA
| | - Elizabeth Cote
- Center for Integrative Materials Discovery, Department of Chemistry and Chemical Engineering, University of New Haven, West Haven, CT 06516, USA
| | - William J Sagues
- Department of Biological & Agricultural Engineering, North Carolina State University, Raleigh, NC 27695, USA
| | - Halena Hagelin-Weaver
- Department of Chemical Engineering, University of Florida, Gainesville, FL 32611, USA
| | - Ji Gao
- School of Chemical & Biomolecular Engineering Renewable Bioproduct Institute, Georgia Institute of Technology, Atlanta, GA 30318, USA
| | - Dequan Xiao
- Center for Integrative Materials Discovery, Department of Chemistry and Chemical Engineering, University of New Haven, West Haven, CT 06516, USA
| | - Zhaohui Tong
- School of Chemical & Biomolecular Engineering Renewable Bioproduct Institute, Georgia Institute of Technology, Atlanta, GA 30318, USA
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10
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Matveeva VG, Bronstein LM. Design of Bifunctional Nanocatalysts Based on Zeolites for Biomass Processing. NANOMATERIALS (BASEL, SWITZERLAND) 2023; 13:2274. [PMID: 37630859 PMCID: PMC10458776 DOI: 10.3390/nano13162274] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/13/2023] [Revised: 08/02/2023] [Accepted: 08/04/2023] [Indexed: 08/27/2023]
Abstract
Bifunctional catalysts consisting of metal-containing nanoparticles (NPs) and zeolite supports have received considerable attention due to their excellent catalytic properties in numerous reactions, including direct (biomass is a substrate) and indirect (platform chemical is a substrate) biomass processing. In this short review, we discuss major approaches to the preparation of NPs in zeolites, concentrating on methods that allow for the best interplay (synergy) between metal and acid sites, which is normally achieved for small NPs well-distributed through zeolite. We focus on the modification of zeolites to provide structural integrity and controlled acidity, which can be accomplished by the incorporation of certain metal ions or elements. The other modification avenue is the adjustment of zeolite morphology, including the creation of numerous defects for the NP entrapment and designed hierarchical porosity for improved mass transfer. In this review, we also provide examples of synergy between metal and acid sites and emphasize that without density functional theory calculations, many assumptions about the interactions between active sites remain unvalidated. Finally, we describe the most interesting examples of direct and indirect biomass (waste) processing for the last five years.
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Affiliation(s)
- Valentina G. Matveeva
- Department of Biotechnology, Chemistry and Standardization, Tver State Technical University, 22 A. Nikitina St., 170026 Tver, Russia;
- Regional Technological Centre, Tver State University, Zhelyabova St., 33, 170100 Tver, Russia
| | - Lyudmila M. Bronstein
- Department of Biotechnology, Chemistry and Standardization, Tver State Technical University, 22 A. Nikitina St., 170026 Tver, Russia;
- Department of Chemistry, Indiana University, 800 E. Kirkwood Av., Bloomington, IN 47405, USA
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11
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Peng Z, Jiang X, Si C, Joao Cárdenas-Oscanoa A, Huang C. Advances of Modified Lignin as Substitute to Develop Lignin-Based Phenol-Formaldehyde Resin Adhesives. CHEMSUSCHEM 2023; 16:e202300174. [PMID: 37338272 DOI: 10.1002/cssc.202300174] [Citation(s) in RCA: 9] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/06/2023] [Revised: 04/06/2023] [Indexed: 06/21/2023]
Abstract
Traditionally, phenols used to prepare phenol-formaldehyde (PF) resin adhesives are obtained from phenolic compounds and various chemicals, which are extracted from petroleum-based raw materials. Lignin, a sustainable phenolic macromolecule in the cell wall of biomass with an aromatic ring and a phenolic hydroxyl group similar to those of phenol, can be an ideal substitute for phenol in PF resin adhesives. However, only a few lignin-based adhesives are produced on a large scale in industry, mainly because of the low activity of lignin. Preparing lignin-based PF resin adhesives with exceptional achievements by modifying lignin instead of phenol is an efficient method to improve the economic benefits and protect the environment. In this review, the latest progress in the preparation of PF resin adhesives via lignin modification, including chemical, physical, and biological modifications, is discussed. In addition, the advantages and disadvantages of different lignin modification methods for adhesives are compared and discussed, and future research directions for the synthesis of lignin-based PF resin adhesives are proposed.
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Affiliation(s)
- Zhenwen Peng
- Co-Innovation Center for Efficient Processing and Utilization of Forest Resources, College of Chemical Engineering, Nanjing Forestry University, Nanjing, 210037, P. R. China
| | - Xiao Jiang
- Department of Forestry Biomaterials, North Carolina State University Campus Box 8005, Raleigh, NC 27695-8005, USA
| | - Chuanling Si
- Co-Innovation Center for Efficient Processing and Utilization of Forest Resources, College of Chemical Engineering, Nanjing Forestry University, Nanjing, 210037, P. R. China
- Tianjin Key Laboratory of Pulp and Paper, Tianjin University of Science and Technology, Tianjin, 300457, P. R. China
| | - Aldo Joao Cárdenas-Oscanoa
- Forest Industry Department, Faculty of Forest Science, Universidad Nacional Agraria La Molina, Lima, 15024, Perú
| | - Caoxing Huang
- Co-Innovation Center for Efficient Processing and Utilization of Forest Resources, College of Chemical Engineering, Nanjing Forestry University, Nanjing, 210037, P. R. China
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12
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Pérez-Rafael S, Ferreres G, Kessler RW, Kessler W, Blair J, Rathee G, Morena AG, Tzanov T. Continuous sonochemical nanotransformation of lignin - Process design and control. ULTRASONICS SONOCHEMISTRY 2023; 98:106499. [PMID: 37393854 PMCID: PMC10316651 DOI: 10.1016/j.ultsonch.2023.106499] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/31/2023] [Revised: 06/05/2023] [Accepted: 06/19/2023] [Indexed: 07/04/2023]
Abstract
As the most abundant renewable aromatic polymer on the planet, lignin is gaining growing interest in replacing petroleum-based chemicals and products. However, only <5 % of industrial lignin waste is revalorized in its macromolecular form as additives, stabilizing agents or dispersant and surfactants. Herein, revalorization of this biomass was achieved by implementing an environmentally-friendly continuous sonochemical nanotransformation to obtain highly concentrated lignin nanoparticles (LigNPs) dispersions for added-value material applications. With the aim to further model and control a large-scale ultrasound-assisted lignin nanotransformation, a two-level factorial design of experiment (DoE) was implemented varying the ultrasound (US) amplitude, flow rate, and lignin concentration. Size and polydispersity measurements together with the UV-Vis spectra of lignin recorded at different time intervals of sonication allowed to monitor and understand the sonochemical process on a molecular level. The light scattering profile of sonicated lignin dispersions showed a significant particle size reduction in the first 20 min, followed by moderate particle size decrease below 700 nm until the end of the 2 h process. The response surface analysis (RSA) of the particle size data revealed that the lignin concentration and sonication time were the most important factors to achieve smaller NPs. From a mechanistic point of view, a strong impact of the particle-particle collisions due to sonication seems to be responsible for the decrease in particle size and homogenization of the particle distribution. Unexpectedly, a strong interaction between the flow rate and US amplitude on the particle size and nanotransformation efficiency was observed, yielding smaller LigNPs at high amplitude and low flow rate or vice versa. The data derived from the DoE were used to model and predict the size and polydispersity of the sonicated lignin. Furthermore, the use of the NPs spectral process trajectories calculated from the UV-Vis spectra showed similar RSA model as the dynamic light scattering (DLS) data and will potentially allow the in-line monitoring of the nanotransformation process.
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Affiliation(s)
- Sílvia Pérez-Rafael
- Grup de Biotecnologia Molecular i Industrial, Department of Chemical Engineering, Universitat Politècnica de Catalunya, Rambla Sant Nebridi 22, Terrassa 08222, Spain
| | - Guillem Ferreres
- Grup de Biotecnologia Molecular i Industrial, Department of Chemical Engineering, Universitat Politècnica de Catalunya, Rambla Sant Nebridi 22, Terrassa 08222, Spain
| | | | | | - Jeniffer Blair
- Grup de Biotecnologia Molecular i Industrial, Department of Chemical Engineering, Universitat Politècnica de Catalunya, Rambla Sant Nebridi 22, Terrassa 08222, Spain
| | - Garima Rathee
- Grup de Biotecnologia Molecular i Industrial, Department of Chemical Engineering, Universitat Politècnica de Catalunya, Rambla Sant Nebridi 22, Terrassa 08222, Spain
| | - Angela Gala Morena
- Grup de Biotecnologia Molecular i Industrial, Department of Chemical Engineering, Universitat Politècnica de Catalunya, Rambla Sant Nebridi 22, Terrassa 08222, Spain
| | - Tzanko Tzanov
- Grup de Biotecnologia Molecular i Industrial, Department of Chemical Engineering, Universitat Politècnica de Catalunya, Rambla Sant Nebridi 22, Terrassa 08222, Spain.
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13
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Sun N, Hu J, Li C, Wang X, Gai Y, Jiang X. Fusion gene 4CL-CCR promotes lignification in tobacco suspension cells. PLANT CELL REPORTS 2023; 42:939-952. [PMID: 36964306 DOI: 10.1007/s00299-023-03002-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/23/2022] [Accepted: 03/03/2023] [Indexed: 05/06/2023]
Abstract
KEY MESSAGE The fusion gene 4CL-CCR promotes lignification and activates lignin-related MYB expression in tobacco but inhibits auxin-related gene expression and hinders the auxin absorption of cells. Given the importance of lignin polymers in plant growth and their industrial value, it is necessary to investigate how plants synthesize monolignols and regulate the level of lignin in cell walls. In our previous study, expression of the Populus tomentosa fusion gene 4CL-CCR significantly promoted the production of 4-hydroxycinnamyl alcohols. However, the function of 4CL-CCR in organisms remains poorly understood. In this study, the fusion gene 4CL-CCR was heterologously expressed in tobacco suspension cells. We found that the transgenic suspension cells exhibited lignification earlier. Furthermore, 4CL-CCR significantly reduced the content of phenolic acids and increased the content of aldehydes in the medium, which led to an increase in lignin deposition. Moreover, transcriptome results showed that the genes related to lignin synthesis, such as PAL, 4CL, CCoAOMT and CAD, were significantly upregulated in the 4CL-CCR group. The expression of genes related to auxin, such as ARF3, ARF5 and ARF6, was significantly downregulated. The downregulation of auxin affected the expression of transcription factor MYBs. We hypothesize that the upregulated genes MYB306 and MYB315 are involved in the regulation of cell morphogenesis and lignin biosynthesis and eventually enhance lignification in tobacco suspension cells. Our findings provide insight into the function of 4CL-CCR in lignification and how secondary cell walls are formed in plants.
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Affiliation(s)
- Nan Sun
- State Key Laboratory of Tree Genetics and Breeding, College of Biological Sciences and Technology , Beijing Forestry University, Beijing, 100083, China
- The Tree and Ornamental Plant Breeding and Biotechnology Laboratory of National Forestry and Grassland Administration, Beijing, 100083, China
| | - Jiaqi Hu
- State Key Laboratory of Tree Genetics and Breeding, College of Biological Sciences and Technology , Beijing Forestry University, Beijing, 100083, China
- The Tree and Ornamental Plant Breeding and Biotechnology Laboratory of National Forestry and Grassland Administration, Beijing, 100083, China
| | - Can Li
- State Key Laboratory of Tree Genetics and Breeding, College of Biological Sciences and Technology , Beijing Forestry University, Beijing, 100083, China
- The Tree and Ornamental Plant Breeding and Biotechnology Laboratory of National Forestry and Grassland Administration, Beijing, 100083, China
| | - Xuechun Wang
- State Key Laboratory of Tree Genetics and Breeding, College of Biological Sciences and Technology , Beijing Forestry University, Beijing, 100083, China
- The Tree and Ornamental Plant Breeding and Biotechnology Laboratory of National Forestry and Grassland Administration, Beijing, 100083, China
| | - Ying Gai
- State Key Laboratory of Tree Genetics and Breeding, College of Biological Sciences and Technology , Beijing Forestry University, Beijing, 100083, China.
- The Tree and Ornamental Plant Breeding and Biotechnology Laboratory of National Forestry and Grassland Administration, Beijing, 100083, China.
| | - Xiangning Jiang
- State Key Laboratory of Tree Genetics and Breeding, College of Biological Sciences and Technology , Beijing Forestry University, Beijing, 100083, China.
- The Tree and Ornamental Plant Breeding and Biotechnology Laboratory of National Forestry and Grassland Administration, Beijing, 100083, China.
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Abdullah T, İlyasoğlu G, Memić A. Designing Lignin-Based Biomaterials as Carriers of Bioactive Molecules. Pharmaceutics 2023; 15:pharmaceutics15041114. [PMID: 37111600 PMCID: PMC10143462 DOI: 10.3390/pharmaceutics15041114] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2023] [Revised: 03/18/2023] [Accepted: 03/27/2023] [Indexed: 04/03/2023] Open
Abstract
There is a need to develop circular and sustainable economies by utilizing sustainable, green, and renewable resources in high-tech industrial fields especially in the pharmaceutical industry. In the last decade, many derivatives of food and agricultural waste have gained considerable attention due to their abundance, renewability, biocompatibility, environmental amiability, and remarkable biological features. Particularly, lignin, which has been used as a low-grade burning fuel in the past, recently attracted a lot of attention for biomedical applications because of its antioxidant, anti-UV, and antimicrobial properties. Moreover, lignin has abundant phenolic, aliphatic hydroxyl groups, and other chemically reactive sites, making it a desirable biomaterial for drug delivery applications. In this review, we provide an overview of designing different forms of lignin-based biomaterials, including hydrogels, cryogels, electrospun scaffolds, and three-dimensional (3D) printed structures and how they have been used for bioactive compound delivery. We highlight various design criteria and parameters that influence the properties of each type of lignin-based biomaterial and corelate them to various drug delivery applications. In addition, we provide a critical analysis, including the advantages and challenges encountered by each biomaterial fabrication strategy. Finally, we highlight the prospects and future directions associated with the application of lignin-based biomaterials in the pharmaceutical field. We expect that this review will cover the most recent and important developments in this field and serve as a steppingstone for the next generation of pharmaceutical research.
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Jiang B, Jiao H, Guo X, Chen G, Guo J, Wu W, Jin Y, Cao G, Liang Z. Lignin-Based Materials for Additive Manufacturing: Chemistry, Processing, Structures, Properties, and Applications. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2023; 10:e2206055. [PMID: 36658694 PMCID: PMC10037990 DOI: 10.1002/advs.202206055] [Citation(s) in RCA: 11] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/19/2022] [Revised: 12/05/2022] [Indexed: 06/17/2023]
Abstract
The utilization of lignin, the most abundant aromatic biomass component, is at the forefront of sustainable engineering, energy, and environment research, where its abundance and low-cost features enable widespread application. Constructing lignin into material parts with controlled and desired macro- and microstructures and properties via additive manufacturing has been recognized as a promising technology and paves the way to the practical application of lignin. Considering the rapid development and significant progress recently achieved in this field, a comprehensive and critical review and outlook on three-dimensional (3D) printing of lignin is highly desirable. This article fulfils this demand with an overview on the structure of lignin and presents the state-of-the-art of 3D printing of pristine lignin and lignin-based composites, and highlights the key challenges. It is attempted to deliver better fundamental understanding of the impacts of morphology, microstructure, physical, chemical, and biological modifications, and composition/hybrids on the rheological behavior of lignin/polymer blends, as well as, on the mechanical, physical, and chemical performance of the 3D printed lignin-based materials. The main points toward future developments involve hybrid manufacturing, in situ polymerization, and surface tension or energy driven molecular segregation are also elaborated and discussed to promote the high-value utilization of lignin.
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Affiliation(s)
- Bo Jiang
- Jiangsu Co‐Innovation Center of Efficient Processing and Utilization of Forest ResourcesInternational Innovation Center for Forest Chemicals and MaterialsNanjing Forestry UniversityNanjing210037China
| | - Huan Jiao
- Jiangsu Co‐Innovation Center of Efficient Processing and Utilization of Forest ResourcesInternational Innovation Center for Forest Chemicals and MaterialsNanjing Forestry UniversityNanjing210037China
| | - Xinyu Guo
- Jiangsu Co‐Innovation Center of Efficient Processing and Utilization of Forest ResourcesInternational Innovation Center for Forest Chemicals and MaterialsNanjing Forestry UniversityNanjing210037China
| | - Gegu Chen
- Beijing Key Laboratory of Lignocellulosic ChemistryBeijing Forestry UniversityBeijing100083China
| | - Jiaqi Guo
- Jiangsu Co‐Innovation Center of Efficient Processing and Utilization of Forest ResourcesInternational Innovation Center for Forest Chemicals and MaterialsNanjing Forestry UniversityNanjing210037China
| | - Wenjuan Wu
- Jiangsu Co‐Innovation Center of Efficient Processing and Utilization of Forest ResourcesInternational Innovation Center for Forest Chemicals and MaterialsNanjing Forestry UniversityNanjing210037China
| | - Yongcan Jin
- Jiangsu Co‐Innovation Center of Efficient Processing and Utilization of Forest ResourcesInternational Innovation Center for Forest Chemicals and MaterialsNanjing Forestry UniversityNanjing210037China
| | - Guozhong Cao
- Department of Materials Science and EngineeringUniversity of WashingtonSeattleWA98195‐2120USA
| | - Zhiqiang Liang
- Institute of Functional Nano & Soft Materials Laboratory (FUNSOM)Jiangsu Key Laboratory for Carbon‐Based Functional Materials & DevicesJoint International Research Laboratory of Carbon‐Based Functional Materials and DevicesSoochow UniversitySuzhou215123China
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16
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Lu X, Gu X. A review on lignin-based epoxy resins: Lignin effects on their synthesis and properties. Int J Biol Macromol 2023; 229:778-790. [PMID: 36603715 DOI: 10.1016/j.ijbiomac.2022.12.322] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2022] [Revised: 12/25/2022] [Accepted: 12/28/2022] [Indexed: 01/03/2023]
Abstract
Lignin can be used as a sustainable alternative to bisphenol A (BPA) to prepared lignin-based epoxy resins. Lignin effects including molecular weight, phenolic content, G/S unit ratio and flexible/rigid linkage ratio on epoxy synthesis and performance were summarized comprehensively. The incorporation of lignin with a higher molecular weight would lead to the higher rigidity of epoxy crosslinking network. Higher contents of ether bonds in lignin would provide higher structural flexibility of lignin incorporated epoxy thermosets. Lignin with higher contents of phenolic hydroxyls was more beneficial for improving the reactivity of its epoxy products after glycidylation. Due to the excellent charring capacity of lignin, higher contents of residue char can be produced at higher additions of lignin at high temperatures, while the loss of crosslinking density caused by the increasing lignin addition (especially for the macromolecular lignin) would deteriorate the thermal stability of their thermosets. Several applications of lignin-based epoxy resins were also mentioned based on their mechanical, thermal and chemical properties, such as coatings (with anticorrosion and UV-blocking), adhesives (with highly crosslinking network, excellent mechanical, and thermal properties) and flame retardants (with high charring capability).
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Affiliation(s)
- Xinyu Lu
- Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, Jiangsu Provincial Key Lab for the Chemistry and Utilization of Agro-forest Biomass, College of Chemical Engineering, Nanjing Forestry University, Nanjing 210037, China
| | - Xiaoli Gu
- Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, Jiangsu Provincial Key Lab for the Chemistry and Utilization of Agro-forest Biomass, College of Chemical Engineering, Nanjing Forestry University, Nanjing 210037, China.
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17
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Yin L, Hu P, Liang C, Wang J, Li M, Qu W. Construction of self-supporting ultra-micropores lignin-based carbon nanofibers with high areal desalination capacity. Int J Biol Macromol 2023; 225:1415-1425. [PMID: 36435463 DOI: 10.1016/j.ijbiomac.2022.11.199] [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: 09/27/2022] [Revised: 11/06/2022] [Accepted: 11/20/2022] [Indexed: 11/25/2022]
Abstract
Lignin is a renewable biomacromolecule that can be used as precursors for carbon materials. In this work, highly flexible lignin-based carbon nanofibers with abundant ultra-micropores are constructed via electrospinning, oxidative stabilization and carbonization. The results indicate that replacing PAN with 80 % lignin is feasible in regulating ultra-micropores. The synthesized L4P1-CNFs possess many attractive properties (e.g., pore size distribution, electrochemical and deionization property) compared with that produced from other non-renewable precursors or more-complexed processes. It shows excellent electrochemical double-layer capacitance in 6 M KOH (233 to 162 F g-1 at 0.5 to 5 A g-1) and 1 M NaCl (158 to 82 F g-1 at 0.5 to 5 A g-1) electrolytes. Upon assembling into CDI cells, the average salt adsorption rate could reach 1.79 mg g-1 min-1 at 1.2 V and 3.32 mg g-1 min-1 at 2 V in 500 mg L-1. Benefiting from the excellent flexibility, we innovatively stack four layers of L4P1-CNFs to improve the areal electrosorption capacity to 0.0817 mg cm-2 at 500 mg L-1, significantly higher than that of traditional carbon-based electrodes. The good desalination property makes lignin-based carbon nanofibers ideal for practical, low-cost capacitive deionization applications.
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Affiliation(s)
- Linghong Yin
- Laboratory of Lignin-based Materials, College of Life Sciences, Qingdao Agricultural University, Qingdao 266109, China
| | - Pengyu Hu
- Laboratory of Lignin-based Materials, College of Life Sciences, Qingdao Agricultural University, Qingdao 266109, China
| | - Chen Liang
- College of Chemistry and Pharmaceutical Sciences, Qingdao Agricultural University, Qingdao 266109, China
| | - Jie Wang
- College of Chemistry and Pharmaceutical Sciences, Qingdao Agricultural University, Qingdao 266109, China
| | - Ming Li
- College of Chemistry and Pharmaceutical Sciences, Qingdao Agricultural University, Qingdao 266109, China
| | - Wangda Qu
- Laboratory of Lignin-based Materials, College of Life Sciences, Qingdao Agricultural University, Qingdao 266109, China; Shandong Province Key Laboratory of Applied Mycology, Qingdao Agricultural University, Qingdao 266109, China.
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18
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Mohan M, Simmons BA, Sale KL, Singh S. Multiscale molecular simulations for the solvation of lignin in ionic liquids. Sci Rep 2023; 13:271. [PMID: 36609448 PMCID: PMC9822913 DOI: 10.1038/s41598-022-25372-2] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2022] [Accepted: 11/29/2022] [Indexed: 01/09/2023] Open
Abstract
Lignin, the second most abundant biopolymer found in nature, has emerged as a potential source of sustainable fuels, chemicals, and materials. Finding suitable solvents, as well as technologies for efficient and affordable lignin dissolution and depolymerization, are major obstacles in the conversion of lignin to value-added products. Certain ionic liquids (ILs) are capable of dissolving and depolymerizing lignin but designing and developing an effective IL for lignin dissolution remains quite challenging. To address this issue, the COnductor-like Screening MOdel for Real Solvents (COSMO-RS) model was used to screen 5670 ILs by computing logarithmic activity coefficients (ln(γ)) and excess enthalpies (HE) of lignin, respectively. Based on the COSMO-RS computed thermodynamic properties (ln(γ) and HE) of lignin, anions such as acetate, methyl carbonate, octanoate, glycinate, alaninate, and lysinate in combination with cations like tetraalkylammonium, tetraalkylphosphonium, and pyridinium are predicted to be suitable solvents for lignin dissolution. The dissolution properties such as interaction energy between anion and cation, viscosity, Hansen solubility parameters, dissociation constants, and Kamlet-Taft parameters of selected ILs were evaluated to assess their propensity for lignin dissolution. Furthermore, molecular dynamics (MD) simulations were performed to understand the structural and dynamic properties of tetrabutylammonium [TBA]+-based ILs and lignin mixtures and to shed light on the mechanisms involved in lignin dissolution. MD simulation results suggested [TBA]+-based ILs have the potential to dissolve lignin because of their higher contact probability and interaction energies with lignin when compared to cholinium lysinate.
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Affiliation(s)
- Mood Mohan
- grid.451372.60000 0004 0407 8980Deconstruction Division, Joint BioEnergy Institute, 5885 Hollis Street, Emeryville, CA 94608 USA ,grid.474523.30000000403888279Bioresource and Environmental Security Department, Sandia National Laboratories, 7011 East Avenue, Livermore, CA 94551 USA
| | - Blake A. Simmons
- grid.451372.60000 0004 0407 8980Deconstruction Division, Joint BioEnergy Institute, 5885 Hollis Street, Emeryville, CA 94608 USA ,grid.184769.50000 0001 2231 4551Biological Systems and Engineering Division, Lawrence Berkeley National Laboratory, 1 Cyclotron Road, Berkeley, CA 94720 USA
| | - Kenneth L. Sale
- grid.451372.60000 0004 0407 8980Deconstruction Division, Joint BioEnergy Institute, 5885 Hollis Street, Emeryville, CA 94608 USA ,grid.474523.30000000403888279Department of Computational Biology and Biophysics, Sandia National Laboratories, 7011 East Avenue, Livermore, CA 94551 USA
| | - Seema Singh
- grid.451372.60000 0004 0407 8980Deconstruction Division, Joint BioEnergy Institute, 5885 Hollis Street, Emeryville, CA 94608 USA ,grid.474523.30000000403888279Bioresource and Environmental Security Department, Sandia National Laboratories, 7011 East Avenue, Livermore, CA 94551 USA
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Yan K, Wang J, Wang Z, Yuan L. Bio-based monomers for amide-containing sustainable polymers. Chem Commun (Camb) 2023; 59:382-400. [PMID: 36524867 DOI: 10.1039/d2cc05161c] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
Abstract
The field of sustainable polymers from renewable feedstocks is a fast-reviving field after the decades-long domination of petroleum-based polymers. Amide-containing polymers exhibit a wide range of properties depending on the type of amide (primary, secondary, and tertiary), amide density, and other molecular structural parameters (co-existing groups, molecular weight, and topology). Engineering amide groups into sustainable polymers via the "monomer approach" is an industrially proven strategy, while bio-based monomers are of enormous importance to bridge the gap between renewable sources and amide-containing sustainable polymers (AmSPs). This feature article aims at conceptualizing the monomer-design philosophy behind most of the reported AmSPs and is organized by discussing di-functional monomers for step-growth polymerization, cyclic monomers for ring-opening polymerization and amide-containing monomers for chain-growth polymerization. We also give a perspective on AmSPs with respect to monomer design and performance enhancement.
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Affiliation(s)
- Kangle Yan
- Anhui Provincial Engineering Center for High Performance Biobased Nylons, School of Forestry and Landscape Architecture, Anhui Agricultural University, Hefei, 230036, P. R. China.
| | - Jie Wang
- Anhui Provincial Engineering Center for High Performance Biobased Nylons, School of Forestry and Landscape Architecture, Anhui Agricultural University, Hefei, 230036, P. R. China.
| | - Zhongkai Wang
- Anhui Provincial Engineering Center for High Performance Biobased Nylons, School of Forestry and Landscape Architecture, Anhui Agricultural University, Hefei, 230036, P. R. China.
| | - Liang Yuan
- Anhui Provincial Engineering Center for High Performance Biobased Nylons, School of Forestry and Landscape Architecture, Anhui Agricultural University, Hefei, 230036, P. R. China.
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Wang G, Dong Y, Hao X, Zhang L, Chi X. Bio-based poly(decylene terephthalate-co-decylene furandicarboxylate)s derived from 2,5-furandicarboxylic acid (FDCA): Synthesis and properties. REACT FUNCT POLYM 2022. [DOI: 10.1016/j.reactfunctpolym.2022.105446] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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21
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Calvo-Flores FG, Martin-Martinez FJ. Biorefineries: Achievements and challenges for a bio-based economy. Front Chem 2022; 10:973417. [PMID: 36438874 PMCID: PMC9686847 DOI: 10.3389/fchem.2022.973417] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2022] [Accepted: 10/05/2022] [Indexed: 12/07/2023] Open
Abstract
Climate change, socioeconomical pressures, and new policy and legislation are driving a decarbonization process across industries, with a critical shift from a fossil-based economy toward a biomass-based one. This new paradigm implies not only a gradual phasing out of fossil fuels as a source of energy but also a move away from crude oil as a source of platform chemicals, polymers, drugs, solvents and many other critical materials, and consumer goods that are ubiquitous in our everyday life. If we are to achieve the United Nations' Sustainable Development Goals, crude oil must be substituted by renewable sources, and in this evolution, biorefineries arise as the critical alternative to traditional refineries for producing fuels, chemical building blocks, and materials out of non-edible biomass and biomass waste. State-of-the-art biorefineries already produce cost-competitive chemicals and materials, but other products remain challenging from the economic point of view, or their scaled-up production processes are still not sufficiently developed. In particular, lignin's depolymerization is a required milestone for the success of integrated biorefineries, and better catalysts and processes must be improved to prepare bio-based aromatic simple molecules. This review summarizes current challenges in biorefinery systems, while it suggests possible directions and goals for sustainable development in the years to come.
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Affiliation(s)
- Francisco G. Calvo-Flores
- Grupo de Modelizacion y Diseño Molecular, Departamento de Quimica Organica, Universidad de Granada, Granada, Spain
| | - Francisco J. Martin-Martinez
- Department of Chemistry, Swansea University, Swansea, United Kingdom
- Department of Materials Science and Engineering, Massachusetts Institute of Technology, Cambridge, MA, United States
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22
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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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23
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Bio-Vitrimers for Sustainable Circular Bio-Economy. Polymers (Basel) 2022; 14:polym14204338. [PMID: 36297916 PMCID: PMC9606967 DOI: 10.3390/polym14204338] [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: 09/17/2022] [Revised: 10/03/2022] [Accepted: 10/06/2022] [Indexed: 11/16/2022] Open
Abstract
The aim to achieve sustainable development goals (SDG) and cut CO2-emission is forcing researchers to develop bio-based materials over conventional polymers. Since most of the established bio-based polymeric materials demonstrate prominent sustainability, however, performance, cost, and durability limit their utilization in real-time applications. Additionally, a sustainable circular bioeconomy (CE) ensures SDGs deliver material production, where it ceases the linear approach from production to waste. Simultaneously, sustainable circular bio-economy promoted materials should exhibit the prominent properties to involve and substitute conventional materials. These interceptions can be resolved through state-of-the-art bio-vitrimeric materials that display durability/mechanical properties such as thermosets and processability/malleability such as thermoplastics. This article emphasizes the current need for vitrimers based on bio-derived chemicals; as well as to summarize the developed bio-based vitrimers (including reprocessing, recycling and self-healing properties) and their requirements for a sustainable circular economy in future prospects.
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24
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Zhang X, Zhang J, Yang H, He C, Ke Y, Singh S, Cheng G. Determination of the Structures of Lignin Subunits and Nanoparticles in Solution by Small-Angle Neutron Scattering: Towards Improving Lignin Valorization. CHEMSUSCHEM 2022; 15:e202201230. [PMID: 35916324 DOI: 10.1002/cssc.202201230] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/27/2022] [Revised: 08/01/2022] [Indexed: 06/15/2023]
Abstract
Lignin nanoparticles (LNPs) are usually produced from lignin solution through supersaturation. The structure of the lignin in solution is still poorly understood due to structural variability of isolated lignins. Here, lignins were extracted from different plants to establish a general pattern of their structure in several lignin solvents. Lignin molecules (lignin subunits) and larger aggregates were observed in dimethyl sulfoxide (DMSO), ethylene glycol (EG) and 0.1 N NaOD solutions by small-angle neutron scattering (SANS). It was proposed that the aggregates were composed of lignin subunits with a higher molecular weight and a higher ratio of the aliphatic to phenolic hydroxyl groups. The size, shape, and compactness are important factors that affect the uses of the LNPs, which were obtained from the SANS data for the first time. A discrepancy in the radius between SANS and DLS was discovered, pointing to a large hydration shell around the LNPs in aqueous solutions. The cytotoxicity of the corncob lignin, kraft lignin, and their LNPs were measured and compared.
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Affiliation(s)
- Xin Zhang
- State Key Laboratory of Organic-Inorganic Composites and College of Life Science and Technology, Beijing University of Chemical Technology, North 3rd Ring East, # 15, 100029, Beijing, P. R. China
- State Key Laboratory of Tribology, Tsinghua University, 100084, Beijing, P. R. China
| | - Jinxu Zhang
- State Key Laboratory of Organic-Inorganic Composites and College of Life Science and Technology, Beijing University of Chemical Technology, North 3rd Ring East, # 15, 100029, Beijing, P. R. China
| | - Hua Yang
- Dongguan Neutron Source Science Center, 523803, Dongguan, P. R. China
- Institute of High Energy Physics, Chinese Academy of Science, 100049, Beijing, P. R. China
| | - Chunyong He
- Dongguan Neutron Source Science Center, 523803, Dongguan, P. R. China
- Institute of High Energy Physics, Chinese Academy of Science, 100049, Beijing, P. R. China
| | - Yubin Ke
- Dongguan Neutron Source Science Center, 523803, Dongguan, P. R. China
- Institute of High Energy Physics, Chinese Academy of Science, 100049, Beijing, P. R. China
| | - Seema Singh
- Deconstruction Division, Joint BioEnergy Institute (JBEI), 5885 Hollis Street, 94608, Emeryville, CA, USA
- Sandia National Laboratories, 7011 East Ave, 94551, Livermore, CA, USA
| | - Gang Cheng
- State Key Laboratory of Organic-Inorganic Composites and College of Life Science and Technology, Beijing University of Chemical Technology, North 3rd Ring East, # 15, 100029, Beijing, P. R. China
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25
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Fabrication Mechanisms of Lignin Nanoparticles and Their Ultraviolet Protection Ability in PVA Composite Film. Polymers (Basel) 2022; 14:polym14194196. [PMID: 36236143 PMCID: PMC9572465 DOI: 10.3390/polym14194196] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2022] [Revised: 09/30/2022] [Accepted: 10/04/2022] [Indexed: 12/03/2022] Open
Abstract
Lignin is an indispensable and essential compound present in plants. It is a renewable resource and a green alternative to traditional petroleum energy. The rational utilization of lignin can reduce the environmental damage caused by traditional industrial development. The preparation of lignin nanoparticles (LNPs) using the self-assembly method is one of the most favorable ways to achieve high value-added utilization of lignin. However, the process requires an in-depth understanding of the sphere-forming mechanism of lignin self-assembly and the interaction of self-assembly forces. We used the same raw materials and two different preparation methods to prepare LNPs. The results revealed that the variation in the order of the dropwise addition of lignin solution and deionized water produced LNPs with varying average sizes. The sphere-forming mechanisms of the two kinds of lignin nanoparticles were discussed for the preparation of UV-resistant polyvinyl alcohol (PVA) polymeric films. During lignin spherification, the faster the solution reaches the supersaturation state, the faster the spherogenesis rate is, the smaller the size is, and the narrower the particle size distribution is. The lignin micro/nanospheres are produced by exploiting the π-π bonding interactions in lignin itself. The lignin micro/nanospheres are then mixed with PVA to form a film to obtain a lignin-PVA composite film material with an anti-UV effect.
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26
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Valorization of Lignin and Its Derivatives Using Yeast. Processes (Basel) 2022. [DOI: 10.3390/pr10102004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
Abstract
As the third most plentiful biopolymer after other lignocellulosic derivates such as cellulose and hemicellulose, lignin carries abundant potential as a substitute for petroleum-based products. However, the efficient, practical, value-added product valorization of lignin remains quite challenging. Although several studies have reviewed the valorization of lignin by microorganisms, this present review covers recent studies on the valorization of lignin by employing yeast to obtain products such as single-cell oils (SCOs), enzymes, and other chemical compounds. The use of yeasts has been found to be suitable for the biological conversion of lignin and might provide new insights for future research to develop a yeast strain for lignin to produce other valuable chemical compounds.
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27
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Lignin as a High-Value Bioaditive in 3D-DLP Printable Acrylic Resins and Polyaniline Conductive Composite. Polymers (Basel) 2022; 14:polym14194164. [PMID: 36236112 PMCID: PMC9572831 DOI: 10.3390/polym14194164] [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: 09/15/2022] [Revised: 09/29/2022] [Accepted: 09/30/2022] [Indexed: 11/15/2022] Open
Abstract
With increasing environmental awareness, lignin will play a key role in the transition from the traditional materials industry towards sustainability and Industry 4.0, boosting the development of functional eco-friendly composites for future electronic devices. In this work, a detailed study of the effect of unmodified lignin on 3D printed light-curable acrylic composites was performed up to 4 wt.%. Lignin ratios below 3 wt.% could be easily and reproducibly printed on a digital light processing (DLP) printer, maintaining the flexibility and thermal stability of the pristine resin. These low lignin contents lead to 3D printed composites with smoother surfaces, improved hardness (Shore A increase ~5%), and higher wettability (contact angles decrease ~19.5%). Finally, 1 wt.% lignin was added into 3D printed acrylic resins containing 5 wt.% p-toluensulfonic doped polyaniline (pTSA-PANI). The lignin/pTSA-PANI/acrylic composite showed a clear improvement in the dispersion of the conductive filler, reducing the average surface roughness (Ra) by 61% and increasing the electrical conductivity by an order of magnitude (up to 10-6 S cm-1) compared to lignin free PANI composites. Thus, incorporating organosolv lignin from wood industry wastes as raw material into 3D printed photocurable resins represents a simple, low-cost potential application for the design of novel high-valued, bio-based products.
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28
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Ali DA, Mehanna MM. Role of lignin-based nanoparticles in anticancer drug delivery and bioimaging: An up-to-date review. Int J Biol Macromol 2022; 221:934-953. [PMID: 36089088 DOI: 10.1016/j.ijbiomac.2022.09.007] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2022] [Revised: 08/22/2022] [Accepted: 09/02/2022] [Indexed: 11/05/2022]
Abstract
Lignin, an aromatic biopolymer, is the second most abundant naturally occurring one after cellulose that has drawn a great deal of interest over the years for its potential uses owing to the presence of high content of phenolic compounds, ecofriendly feature and cost-efficiency in comparison to the synthetic polymers. Nevertheless, with the intention of advancing its development, several efforts have been performed in the direction of utilizing lignin on the nanoscale due to its inimitable properties. The notable absorption capacity, fluorescence emission, biodegradability and non-toxicity of lignin nanoparticles permit its appropriateness as a vehicle for drugs and as a bioimaging material. Moreover, lignin nanoparticles have shown plausible therapeutic effects, such as anticancer, antimicrobial, and antioxidant. The current review sheds light on the recent development in the formulation and anticancer applications of lignin nanoparticles as a drug carrier and as a diagnostic tool. The surface properties of the nanomaterial affect the end product characteristics, hence, factors namely; lignin source, isolation technique, purification and quantitation methods, are discussed in this review. This study represents original work that has not been published elsewhere and that has not been submitted simultaneously for publication elsewhere. The manuscript has been read, revised, and approved by the authors.
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Affiliation(s)
- Dana A Ali
- Pharmaceutical Nanotechnology Research Lab, Faculty of Pharmacy, Beirut Arab University, Beirut, Lebanon
| | - Mohammed M Mehanna
- Department of Industrial Pharmacy, Faculty of Pharmacy, Alexandria University, Alexandria, Egypt.
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29
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Liu C, Li Y, Zhuang J, Xiang Z, Jiang W, He S, Xiao H. Conductive Hydrogels Based on Industrial Lignin: Opportunities and Challenges. Polymers (Basel) 2022; 14:polym14183739. [PMID: 36145882 PMCID: PMC9501220 DOI: 10.3390/polym14183739] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2022] [Revised: 08/30/2022] [Accepted: 09/05/2022] [Indexed: 11/16/2022] Open
Abstract
The development of green materials, especially the preparation of high-performance conductive hydrogels from biodegradable biomass materials, is of great importance and has received worldwide attention. As an aromatic polymer found in many natural biomass resources, lignin has the advantage of being renewable, biodegradable, non-toxic, widely available, and inexpensive. The unique physicochemical properties of lignin, such as the presence of hydroxyl, carboxyl, and sulfonate groups, make it promising for use in composite conductive hydrogels. In this review, the source, structure, and reaction characteristics of industrial lignin are provided. Description of the preparation method (physical and chemical strategies) of lignin-based conductive hydrogel is elaborated along with their several important properties, such as electrical conductivity, mechanical properties, and porous structure. Furthermore, we provide insights into the latest research advances in industrial lignin conductive hydrogels, including biosensors, strain sensors, flexible energy storage devices, and other emerging applications. Finally, the prospects and challenges for the development of lignin-conductive hydrogels are presented.
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Affiliation(s)
- Chao Liu
- Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, Nanjing Forestry University, Nanjing 210037, China
- State Key Laboratory of Pulp and Paper Engineering, South China University of Technology, Guangzhou 510640, China
- State Key Laboratory of Biobased Material and Green Papermaking, Qilu University of Technology, Shandong Academy of Sciences, Jinan 250353, China
- Correspondence: (C.L.); (S.H.)
| | - Yu Li
- Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, Nanjing Forestry University, Nanjing 210037, China
| | - Jingshun Zhuang
- State Key Laboratory of Pulp and Paper Engineering, South China University of Technology, Guangzhou 510640, China
| | - Zhouyang Xiang
- State Key Laboratory of Pulp and Paper Engineering, South China University of Technology, Guangzhou 510640, China
| | - Weikun Jiang
- State Key Laboratory of Biobased Material and Green Papermaking, Qilu University of Technology, Shandong Academy of Sciences, Jinan 250353, China
| | - Shuaiming He
- State Key Laboratory of Pulp and Paper Engineering, South China University of Technology, Guangzhou 510640, China
- Correspondence: (C.L.); (S.H.)
| | - Huining Xiao
- Department of Chemical Engineering, University of New Brunswick, Fredericton, NB E3B 5A3, Canada
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30
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Liu N, Shao L, Wang C, Sun F, Wu Z, Zhan P, Zhang L, Wan H. Preparation of lignin modified hyper-cross-linked nanoporous resins and their efficient adsorption for p-nitrophenol in aqueous solution and CO 2 capture. Int J Biol Macromol 2022; 221:25-37. [PMID: 36063890 DOI: 10.1016/j.ijbiomac.2022.08.196] [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: 03/16/2022] [Revised: 08/12/2022] [Accepted: 08/30/2022] [Indexed: 11/19/2022]
Abstract
A series of lignin modified hyper-cross-linked nanoporous resins (LMHCRs) had been synthesized from lignin, 4-vinylbenzyl chloride, and divinylbenzene by free radical polymerization reaction and following Friedel-Crafts reaction. The results indicated that Brunauer-Emmett-Teller surface area (SBET) of LMHCRs decreased with different degrees compared with polymeric microspheres (HCRs) without adding lignin. With increasing the feeding amount of lignin, the SBET of LMHCRs first increased and then decreased, and LMHCR-2 had larger SBET (968.52 m2/g) and average pore size (DA: 2.51 nm). Meanwhile, their contact angle continuously decreased from 92.10 to 71.30, indicating the enhanced polarity. Interestingly, the adsorption capacity of p-nitrophenol (PNP) on all LMHCRs were obviously higher than rhodamine B, and LMHCR-2 had the largest capacity ratio (3.780) of PNP to rhodamine B or other organic dyes at 298 K. Specifically, the Qm of PNP on LMHCR-2 reached the largest value (492.1 mg/g) due to its suitable porosity and favorable surface polarity. LMHCR-2 also displayed excellent CO2 capture (86.5 mg/g) at 273 K and 1 bar and good reusability. This study provided an efficient route to modify hyper-cross-linked resin by using the residual lignin, and showed the enhanced adsorption performance.
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Affiliation(s)
- Na Liu
- Ministry of Forestry Bioethanol Research Center, School of Materials Science and Engineering, Central South University of Forestry and Technology, Changsha 410004, China; Hunan International Joint Laboratory of Woody Biomass Conversion, Central South University of Forestry and Technology, Changsha 410004, China
| | - Lishu Shao
- Ministry of Forestry Bioethanol Research Center, School of Materials Science and Engineering, Central South University of Forestry and Technology, Changsha 410004, China; Hunan International Joint Laboratory of Woody Biomass Conversion, Central South University of Forestry and Technology, Changsha 410004, China.
| | - Chen Wang
- Key Laboratory of Industrial Biotechnology, Ministry of Education, School of Biotechnology, Jiangnan University, Wuxi 214122, China
| | - Fubao Sun
- Key Laboratory of Industrial Biotechnology, Ministry of Education, School of Biotechnology, Jiangnan University, Wuxi 214122, China
| | - Zhiping Wu
- Ministry of Forestry Bioethanol Research Center, School of Materials Science and Engineering, Central South University of Forestry and Technology, Changsha 410004, China; Hunan International Joint Laboratory of Woody Biomass Conversion, Central South University of Forestry and Technology, Changsha 410004, China
| | - Peng Zhan
- Ministry of Forestry Bioethanol Research Center, School of Materials Science and Engineering, Central South University of Forestry and Technology, Changsha 410004, China; Hunan International Joint Laboratory of Woody Biomass Conversion, Central South University of Forestry and Technology, Changsha 410004, China
| | - Lin Zhang
- Ministry of Forestry Bioethanol Research Center, School of Materials Science and Engineering, Central South University of Forestry and Technology, Changsha 410004, China; Hunan International Joint Laboratory of Woody Biomass Conversion, Central South University of Forestry and Technology, Changsha 410004, China
| | - Huan'ai Wan
- Ministry of Forestry Bioethanol Research Center, School of Materials Science and Engineering, Central South University of Forestry and Technology, Changsha 410004, China
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31
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Morena A, Bassegoda A, Natan M, Jacobi G, Banin E, Tzanov T. Antibacterial Properties and Mechanisms of Action of Sonoenzymatically Synthesized Lignin-Based Nanoparticles. ACS APPLIED MATERIALS & INTERFACES 2022; 14:37270-37279. [PMID: 35960019 PMCID: PMC9412960 DOI: 10.1021/acsami.2c05443] [Citation(s) in RCA: 17] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/28/2022] [Accepted: 08/01/2022] [Indexed: 06/02/2023]
Abstract
In recent years, lignin has drawn increasing attention for different applications due to its intrinsic antibacterial and antioxidant properties, coupled with biodegradability and biocompatibility. However, chemical modification or combination with metals is usually required to increase its antimicrobial functionality and produce biobased added-value materials for applications wherein bacterial growth should be avoided, such as biomedical and food industries. In this work, a sonoenzymatic approach for the simultaneous functionalization and nanotransformation of lignin to prepare metal-free antibacterial phenolated lignin nanoparticles (PheLigNPs) is developed. The grafting of tannic acid, a natural phenolic compound, onto lignin was achieved by an environmentally friendly approach using laccase oxidation upon the application of high-intensity ultrasound to rearrange lignin into NPs. PheLigNPs presented higher antibacterial activity than nonfunctionalized LigNPs and phenolated lignin in the bulk form, indicating the contribution of both the phenolic content and the nanosize to the antibacterial activity. Studies on the antibacterial mode of action showed that bacteria in contact with the functionalized NPs presented decreased metabolic activity and high levels of reactive oxygen species (ROS). Moreover, PheLigNPs demonstrated affinity to the bacterial surface and the ability to cause membrane destabilization. Antimicrobial resistance studies showed that the NPs did not induce resistance in pathogenic bacteria, unlike traditional antibiotics.
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Affiliation(s)
- Angela
Gala Morena
- Group
of Molecular and Industrial Biotechnology, Department of Chemical
Engineering, Universitat Politècnica
de Catalunya, Rambla Sant Nebridi 22, Terrassa 08222, Spain
| | - Arnau Bassegoda
- Group
of Molecular and Industrial Biotechnology, Department of Chemical
Engineering, Universitat Politècnica
de Catalunya, Rambla Sant Nebridi 22, Terrassa 08222, Spain
| | - Michal Natan
- The
Mina and Everard Goodman Faculty of Life Sciences, Bar-Ilan University, Bldg 206, Ramat-Gan 82900, Israel
| | - Gila Jacobi
- The
Mina and Everard Goodman Faculty of Life Sciences, Bar-Ilan University, Bldg 206, Ramat-Gan 82900, Israel
| | - Ehud Banin
- The
Mina and Everard Goodman Faculty of Life Sciences, Bar-Ilan University, Bldg 206, Ramat-Gan 82900, Israel
| | - Tzanko Tzanov
- Group
of Molecular and Industrial Biotechnology, Department of Chemical
Engineering, Universitat Politècnica
de Catalunya, Rambla Sant Nebridi 22, Terrassa 08222, Spain
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32
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Julinová M, Vaňharová L, Šašinková D, Kalendová A, Burešová I. Characterization and biodegradation of ternary blends of lignosulfonate/synthetic zeolite/polyvinylpyrrolidone for agricultural chemistry. Int J Biol Macromol 2022; 213:110-122. [PMID: 35644317 DOI: 10.1016/j.ijbiomac.2022.05.153] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2022] [Revised: 05/13/2022] [Accepted: 05/22/2022] [Indexed: 11/28/2022]
Abstract
This study investigates novel ternary polymer blends based on polyvinylpyrrolidone (PVP) as the matrix in combination with lignosulfonate and synthetic zeolite. The blends were prepared by the casting method, and their properties were analysed by various techniques, i.e. FTIR analysis, differential scanning calorimetry and thermogravimetric analysis, including tests for water solubility and uptake, and determination of adhesion and hardness. The biodegradation of the blends in soil was also evaluated, and an experiment was conducted on plant growth (Sinapis alba). Optical microscopy showed that particles of the synthetic zeolite were relatively evenly distributed in the polymer matrix, forming random networks therein. The FTIR spectra for the blends proved that hydrogen bonding interactions had occurred between the PVP/synthetic zeolite and PVP/lignosulfonate. DSC analysis confirmed the good miscibility of the PVP and lignosulfonate. TGA results indicated that the thermal stability of the PVP was maintained. Lignosulfonate had the effect of reducing the adhesion of the blends. However, it was revealed that effect depends greatly on the presence of zeolite and the concentration of lignosulfonate. The obtained results showed that the optimal composition of the blend is 2.5 wt% of zeolite and 5 wt% of lignosulfonate into the PVP. Its water solubility and uptake was satisfactory from the perspective of handling and further utilization. A respirometric biodegradation test confirmed that the ternary blend was environmentally friendly, in addition to which a germination experiment evidenced that the lignosulfonate and synthetic zeolite promoted the root growth and development of S. alba. From these findings it was concluded that the novel ternary polymer blend was applicable as either as seed carriers (in the form of seed tapes) or as a biocompatible coating to protect seeds.
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Affiliation(s)
- Markéta Julinová
- Department of Environmental Protection Engineering, Faculty of Technology, Tomas Bata University in Zlín, Nad Ovčírnou 3685, 760 01 Zlín, Czech Republic.
| | - Ludmila Vaňharová
- Department of Environmental Protection Engineering, Faculty of Technology, Tomas Bata University in Zlín, Nad Ovčírnou 3685, 760 01 Zlín, Czech Republic
| | - Dagmar Šašinková
- Department of Environmental Protection Engineering, Faculty of Technology, Tomas Bata University in Zlín, Nad Ovčírnou 3685, 760 01 Zlín, Czech Republic
| | - Alena Kalendová
- Department of Polymer Engineering, Faculty of Technology, Tomas Bata University in Zlin, Vavrečkova 275, 762 72 Zlín, Czech Republic
| | - Iva Burešová
- Department of Food Technology, Faculty of Technology, Tomas Bata University in Zlín, Mostní 5139, 760 01 Zlín, Czech Republic
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33
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He Z, Li Y, Liu C, Yang J, Qian M, Zhu Y, Wang X. Turning lignin into treasure: An innovative filler comparable to commercial carbon black for the green development of the rubber industry. Int J Biol Macromol 2022; 218:891-899. [PMID: 35907456 DOI: 10.1016/j.ijbiomac.2022.07.190] [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: 05/29/2022] [Revised: 07/18/2022] [Accepted: 07/23/2022] [Indexed: 11/15/2022]
Abstract
Driven by the global carbon neutrality action, biomass-derived functional materials have been applied in many fields to alleviate the pressure brought by the depletion of fossil energy. However, due to the complex structure, lignin faces many difficulties in its high-value utilization. The second largest biomass in the world has become the largest "natural waste". In this paper, the lignin-based biochar-silica (LB-S) hybrid nanoparticles were prepared via a combination of two-step acid precipitation and carbonization using lignin black liquor extracted from xylose residue and sodium silicate as raw materials. The effects of carbonization temperature and lignin-based biochar (LB) content on the reinforcing properties of LB-S were studied. The results show that the particle size, specific surface area, pore characteristics, and surface polarity of LB-S all affect the mechanical properties of the final vulcanizates. The reinforcement performance of the best sample (LMB500-S) with "high structure" characteristics can be comparable to that of commercial carbon black (CB) N550. This study shows that LMB500-S hybrid nanoparticles with economic benefits possess the potential to completely replace commercial CB, which can turn lignin waste into treasure and promote the green development of traditional rubber industry in the context of carbon neutrality.
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Affiliation(s)
- Zhongyu He
- State Key Laboratory of Inorganic Synthesis & Preparative Chemistry, College of Chemistry, Jilin University, Changchun 130012, PR China
| | - Yixin Li
- State Key Laboratory of Inorganic Synthesis & Preparative Chemistry, College of Chemistry, Jilin University, Changchun 130012, PR China
| | - Chang Liu
- Jilin Province Product Quality Supervision Test Institute, Changchun 130103, PR China
| | - Jun Yang
- Jilin Province Product Quality Supervision Test Institute, Changchun 130103, PR China
| | - Miaomiao Qian
- State Key Laboratory of Inorganic Synthesis & Preparative Chemistry, College of Chemistry, Jilin University, Changchun 130012, PR China
| | - Yanchao Zhu
- State Key Laboratory of Inorganic Synthesis & Preparative Chemistry, College of Chemistry, Jilin University, Changchun 130012, PR China
| | - Xiaofeng Wang
- State Key Laboratory of Inorganic Synthesis & Preparative Chemistry, College of Chemistry, Jilin University, Changchun 130012, PR China.
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34
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Isnard F, Monga Mulunda M, Rubens M, Mariën H, Harumashi T, Wakabayashi K, Vanbroekhoven K, Eevers W, Peeters L, Vendamme R. Stabilization of Hybrid Adhesives and Sealants by Thermodynamic Tuning of Molecularly Optimized Lignin Bio-Additives: Small Changes, Big Effects. Biomacromolecules 2022; 23:3174-3185. [DOI: 10.1021/acs.biomac.2c00289] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Florence Isnard
- Flemish Institute for Technological Research (Vito N.V.), Sustainable Polymer Technologies (SPOT) Team, Boeretang 200, Mol 2400, Belgium
- Centre Technique Industriel de la Plasturgie et des Composites, 2 Rue Pierre et Marie Curie, 01100 Bellignat, France
| | - Mikael Monga Mulunda
- Flemish Institute for Technological Research (Vito N.V.), Sustainable Polymer Technologies (SPOT) Team, Boeretang 200, Mol 2400, Belgium
- Department of Chemistry, University of Lubumbashi, 1825 Lubumbashi, D.R. Congo
| | - Maarten Rubens
- Flemish Institute for Technological Research (Vito N.V.), Sustainable Polymer Technologies (SPOT) Team, Boeretang 200, Mol 2400, Belgium
| | - Hanne Mariën
- Kaneka Belgium N.V., Nijverheidsstraat 16, 2260 Westerlo-Oevel, Belgium
| | - Tatsuro Harumashi
- Kaneka Belgium N.V., Nijverheidsstraat 16, 2260 Westerlo-Oevel, Belgium
| | | | - Karolien Vanbroekhoven
- Flemish Institute for Technological Research (Vito N.V.), Sustainable Polymer Technologies (SPOT) Team, Boeretang 200, Mol 2400, Belgium
| | - Walter Eevers
- Flemish Institute for Technological Research (Vito N.V.), Sustainable Polymer Technologies (SPOT) Team, Boeretang 200, Mol 2400, Belgium
- Department of Chemistry, University of Antwerp, Groenenborgerlaan 171, 2020 Antwerp, Belgium
| | - Luc Peeters
- Kaneka Belgium N.V., Nijverheidsstraat 16, 2260 Westerlo-Oevel, Belgium
| | - Richard Vendamme
- Flemish Institute for Technological Research (Vito N.V.), Sustainable Polymer Technologies (SPOT) Team, Boeretang 200, Mol 2400, Belgium
- Department of Materials and Chemistry, Physical Chemistry and Polymer Science, Vrije Universiteit Brussel, Pleinlaan 2, B-1050 Brussels, Belgium
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Reinforcement of starch film with Castanea sativa shells polysaccharides: Optimized formulation and characterization. Food Chem 2022; 396:133609. [PMID: 35839721 DOI: 10.1016/j.foodchem.2022.133609] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2022] [Revised: 06/03/2022] [Accepted: 06/28/2022] [Indexed: 11/21/2022]
Abstract
Chestnut (Castanea sativa) shells, generated from the peeling process of the fruit, contains appreciable amounts of lignin and cellulose. In this work, a starch-based film reinforced with these polysaccharides was developed. Response Surface Methodology was employed to optimize the composition of the film with improved elongation, tensile strength, and elasticity modulus properties. The optimal film was characterized regarding structural, optical barrier and thermal properties. The optimum composition was obtained with 10% (w/w) fibers and 50% (w/w) glycerol; the elongation responses, tensile strength and modulus of elasticity reached values of 34.19%, 7.31 N and 4.15 N, respectively. The values of tension strength and modulus of elasticity were approximately 3.5 times higher than those obtained for the control film. The reinforced film was opaque and exhibited improved water solubility, UV-barrier capacity, and thermal stability compared to control. The optimized starch film based on chestnut shells fibers' has the potential to produce biodegradable food packaging with improved properties.
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Li P, Zhou H, Tao Y, Ren J, Wu C, Wu W. Recent Development and Perspectives of Solvents and Electrode Materials for Electrochemical Oxidative Degradation of Lignin. ELECTROANAL 2022. [DOI: 10.1002/elan.202200100] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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Aslan F, Baybaş D, Ulusoy U. Lignin grafted hydroxyapatite entrapped in polyacrylamide: Characterization and adsorptive features for Th 4+ and bovine serum albumin. Int J Biol Macromol 2022; 204:333-344. [PMID: 35131231 DOI: 10.1016/j.ijbiomac.2022.01.200] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2021] [Revised: 01/21/2022] [Accepted: 01/31/2022] [Indexed: 11/15/2022]
Abstract
Water-soluble sulfolignin (SL) was grafted onto hydroxyapatite (Hap) by using epichlorohydrin. SLgHap was then entrapped in cross-linked polyacrylamide by in situ polymerizations of acrylamide and N, N'-methylenebisacrylamide to obtain the composite of PSLgHap. The composite was characterized by FT-IR, BET- porosity, XRD, EDXRF, SEM-EDX, TGA-DTG, PZC, CEC, and swelling tests. The adsorptive features of PSLgHAP were investigated for Th4+ and BSA in view of its dependence on pH, ionic intensity, concentration, temperature, and time. The results of characterization tests confirmed the formation of PSLgHap. The grafting efficiency concerning sulfur contents of PSLgHap was 96% by EDXRF. The isotherms were best represented by the Sips model, Langmuir adsorption capacities were 369 and 390 mg gSLgHap-1 for BSA and Th4+. The enthalpy and entropy changes were positive whilst Gibbs energy was negative by entropy controlled. The adsorption kinetics of both species was obeyed to pseudo second-order model, whereas it was first-order for BSA and hybrid-order for Th4+ of Langmuir model.
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Affiliation(s)
- Fuat Aslan
- Sivas Cumhuriyet University, Science Faculty, Chemistry Department, Sivas 58140, Turkey.
| | - Demet Baybaş
- Sivas Cumhuriyet University, Science Faculty, Biochemistry Department, Sivas 58140, Turkey.
| | - Ulvi Ulusoy
- Sivas Cumhuriyet University, Science Faculty, Chemistry Department, Sivas 58140, Turkey.
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38
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Delivery of DNA into Human Cells by Functionalized Lignin Nanoparticles. MATERIALS 2022; 15:ma15010303. [PMID: 35009448 PMCID: PMC8745861 DOI: 10.3390/ma15010303] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/23/2021] [Revised: 12/20/2021] [Accepted: 12/27/2021] [Indexed: 12/29/2022]
Abstract
Lignin is an aromatic plant cell wall polymer that is generated in large quantities as a low-value by-product by the pulp and paper industry and by biorefineries that produce renewable fuels and chemicals from plant biomass. Lignin structure varies among plant species and as a function of the method used for its extraction from plant biomass. We first explored the impact of this variation on the physico-chemical properties of lignin nanoparticles (LNPs) produced via a solvent exchange procedure and then examined whether LNPs produced from industrial sources of lignin could be used as delivery vehicles for DNA. Spherical LNPs were formed from birch and wheat BioLignin™ and from poplar thioglycolic acid lignin after dissolving the lignin in tetrahydrofuran (THF) and dialyzing it against water. Dynamic light scattering indicated that the diameter of these LNPs was dependent on the initial concentration of the lignin, while electrophoretic light scattering indicated that the LNPs had a negative zeta potential, which became less negative as the diameter increased. The dynamics of LNP formation as a function of the initial lignin concentration varied as a function of the source of the lignin, as did the absolute value of the zeta potential. After coating the LNPs with cationic poly-l-lysine, an electrophoretic mobility shift assay indicated that DNA could adsorb to LNPs. Upon transfection of human A549 lung carcinoma basal epithelial cells with functionalized LNPs carrying plasmid DNA encoding the enhanced green fluorescent protein (eGFP), green foci were observed under the microscope, and the presence of eGFP in the transfected cells was confirmed by ELISA. The low cytotoxicity of these LNPs and the ability to tailor diameter and zeta potential make these LNPs of interest for future gene therapy applications.
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Gandini A, M. Lacerda T. Monomers and Macromolecular Materials from Renewable Resources: State of the Art and Perspectives. Molecules 2021; 27:159. [PMID: 35011391 PMCID: PMC8746301 DOI: 10.3390/molecules27010159] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2021] [Revised: 12/08/2021] [Accepted: 12/17/2021] [Indexed: 12/13/2022] Open
Abstract
A progressively increasing concern about the environmental impacts of the whole polymer industry has boosted the design of less aggressive technologies that allow for the maximum use of carbon atoms, and reduced dependence on the fossil platform. Progresses related to the former approach are mostly based on the concept of the circular economy, which aims at a thorough use of raw materials, from production to disposal. The latter, however, has been considered a priority nowadays, as short-term biological processes can efficiently provide a myriad of chemicals for the polymer industry. Polymers from renewable resources are widely established in research and technology facilities from all over the world, and a broader consolidation of such materials is expected in a near future. Herein, an up-to-date overview of the most recent and relevant contributions dedicated to the production of monomers and polymers from biomass is presented. We provide some basic issues related to the preparation of polymers from renewable resources to discuss ongoing strategies that can be used to achieve original polymers and systems thereof.
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Affiliation(s)
- Alessandro Gandini
- Graduate School of Engineering in Paper, Print Media and Biomaterials (Grenoble INP-Pagora), University Grenoble Alpes, LGP2, CEDEX 9, 38402 Saint Martin d’Hères, France
| | - Talita M. Lacerda
- Biotechnology Department, Lorena School of Engineering, University of São Paulo, Lorena CEP 12602-810, SP, Brazil;
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Yang X, Li Z, Li L, Li N, Jing F, Hu L, Shang Q, Zhang X, Zhou Y, Pan X. Depolymerization and Demethylation of Kraft Lignin in Molten Salt Hydrate and Applications as an Antioxidant and Metal Ion Scavenger. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2021; 69:13568-13577. [PMID: 34730357 DOI: 10.1021/acs.jafc.1c05759] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
To improve the reactivity and enrich the functionality of lignin for valorization, kraft lignin was depolymerized and demethylated via cleaving aryl and alkyl ether bonds in acidic lithium bromide trihydrate (∼60% LiBr aqueous solution). It was found that the cleavage of the ether bonds followed the order of β-O-4 ether > aryl alkyl ether in phenylcoumaran > dialkyl ether in resinol > methoxyl (MeO). The depolymerization via β-O-4 cleavage occurred under mild conditions (e.g., <0.5 M HCl at 110 °C), while sufficient demethylation of the lignin needed harsher conditions (>1.5 M HCl). Both depolymerization and demethylation generated new aromatic hydroxyl (ArOH). With 2.4 M HCl, MeO content dropped from 4.85 to 0.95 mmol/g lignin, and ArOH content increased from 2.78 to 5.09 mmol/g lignin. The depolymerized and demethylated kraft lignin showed excellent antioxidant activity and Cr(VI)-scavenging capacity, compared with original kraft lignin and tannins.
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Affiliation(s)
- Xiaohui Yang
- Jiangsu Province Key Laboratory of Biomass Energy and Material; Jiangsu Province Co-Innovation Center of Efficient Processing and Utilization of Forest Resources; Key Lab. of Chemical Engineering of Forest Products, National Forestry and Grassland Administration; National Engineering Lab. for Biomass Chemical Utilization, Institute of Chemical Industry of Forestry Products, Chinese Academy of Forestry, Nanjing 210042, China
- Department of Biological Systems Engineering, University of Wisconsin-Madison, 460 Henry Mall, Madison, Wisconsin 53706, United States
- Research Institute of Forestry New Technology, Chinese Academy of Forestry, Dongxiaofu-1 Xiangshan Road, Beijing 100091, China
| | - Zheng Li
- Department of Biological Systems Engineering, University of Wisconsin-Madison, 460 Henry Mall, Madison, Wisconsin 53706, United States
| | - Long Li
- Jiangsu Province Key Laboratory of Biomass Energy and Material; Jiangsu Province Co-Innovation Center of Efficient Processing and Utilization of Forest Resources; Key Lab. of Chemical Engineering of Forest Products, National Forestry and Grassland Administration; National Engineering Lab. for Biomass Chemical Utilization, Institute of Chemical Industry of Forestry Products, Chinese Academy of Forestry, Nanjing 210042, China
| | - Ning Li
- Department of Biological Systems Engineering, University of Wisconsin-Madison, 460 Henry Mall, Madison, Wisconsin 53706, United States
| | - Fei Jing
- Jiangsu Province Key Laboratory of Biomass Energy and Material; Jiangsu Province Co-Innovation Center of Efficient Processing and Utilization of Forest Resources; Key Lab. of Chemical Engineering of Forest Products, National Forestry and Grassland Administration; National Engineering Lab. for Biomass Chemical Utilization, Institute of Chemical Industry of Forestry Products, Chinese Academy of Forestry, Nanjing 210042, China
| | - Lihong Hu
- Jiangsu Province Key Laboratory of Biomass Energy and Material; Jiangsu Province Co-Innovation Center of Efficient Processing and Utilization of Forest Resources; Key Lab. of Chemical Engineering of Forest Products, National Forestry and Grassland Administration; National Engineering Lab. for Biomass Chemical Utilization, Institute of Chemical Industry of Forestry Products, Chinese Academy of Forestry, Nanjing 210042, China
- Research Institute of Forestry New Technology, Chinese Academy of Forestry, Dongxiaofu-1 Xiangshan Road, Beijing 100091, China
| | - Qianqian Shang
- Jiangsu Province Key Laboratory of Biomass Energy and Material; Jiangsu Province Co-Innovation Center of Efficient Processing and Utilization of Forest Resources; Key Lab. of Chemical Engineering of Forest Products, National Forestry and Grassland Administration; National Engineering Lab. for Biomass Chemical Utilization, Institute of Chemical Industry of Forestry Products, Chinese Academy of Forestry, Nanjing 210042, China
| | - Xiao Zhang
- Center for Bioproducts and Bioenergy, Washington State University, 2710 University Drive, Richland, Washington 99354, United States
| | - Yonghong Zhou
- Jiangsu Province Key Laboratory of Biomass Energy and Material; Jiangsu Province Co-Innovation Center of Efficient Processing and Utilization of Forest Resources; Key Lab. of Chemical Engineering of Forest Products, National Forestry and Grassland Administration; National Engineering Lab. for Biomass Chemical Utilization, Institute of Chemical Industry of Forestry Products, Chinese Academy of Forestry, Nanjing 210042, China
| | - Xuejun Pan
- Department of Biological Systems Engineering, University of Wisconsin-Madison, 460 Henry Mall, Madison, Wisconsin 53706, United States
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41
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Tan Y, McClements DJ. Plant-Based Colloidal Delivery Systems for Bioactives. Molecules 2021; 26:molecules26226895. [PMID: 34833987 PMCID: PMC8625429 DOI: 10.3390/molecules26226895] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2021] [Revised: 11/10/2021] [Accepted: 11/12/2021] [Indexed: 12/25/2022] Open
Abstract
The supplementation of plant-based foods and beverages with bioactive agents may be an important strategy for increasing human healthiness. Numerous kinds of colloidal delivery systems have been developed to encapsulate bioactives with the goal of improving their water dispersibility, chemical stability, and bioavailability. In this review, we focus on colloidal delivery systems assembled entirely from plant-based ingredients, such as lipids, proteins, polysaccharides, phospholipids, and surfactants isolated from botanical sources. In particular, the utilization of these ingredients to create plant-based nanoemulsions, nanoliposomes, nanoparticles, and microgels is covered. The utilization of these delivery systems to encapsulate, protect, and release various kinds of bioactives is highlighted, including oil-soluble vitamins (like vitamin D), ω-3 oils, carotenoids (vitamin A precursors), curcuminoids, and polyphenols. The functionality of these delivery systems can be tailored to specific applications by careful selection of ingredients and processing operations, as this enables the composition, size, shape, internal structure, surface chemistry, and electrical characteristics of the colloidal particles to be controlled. The plant-based delivery systems discussed in this article may be useful for introducing active ingredients into the next generation of plant-based foods, meat, seafood, milk, and egg analogs. Nevertheless, there is still a need to systematically compare the functional performance of different delivery systems for specific applications to establish the most appropriate one. In addition, there is a need to test their efficacy at delivering bioavailable forms of bioactives using in vivo studies.
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Affiliation(s)
- Yunbing Tan
- Department of Food Science, University of Massachusetts Amherst, Amherst, MA 01003, USA;
| | - David Julian McClements
- Department of Food Science, University of Massachusetts Amherst, Amherst, MA 01003, USA;
- Department of Food Science & Bioengineering, Zhejiang Gongshang University, 18 Xuezheng Street, Hangzhou 310018, China
- Correspondence:
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42
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Yang C, Chen H, Peng T, Liang B, Zhang Y, Zhao W. Lignin valorization toward value-added chemicals and fuels via electrocatalysis: A perspective. CHINESE JOURNAL OF CATALYSIS 2021. [DOI: 10.1016/s1872-2067(21)63839-1] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
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43
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Winestrand S, Järnström L, Jönsson LJ. Fractionated Lignosulfonates for Laccase-Catalyzed Oxygen-Scavenging Films and Coatings. Molecules 2021; 26:6322. [PMID: 34684902 PMCID: PMC8537236 DOI: 10.3390/molecules26206322] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2021] [Revised: 09/28/2021] [Accepted: 10/14/2021] [Indexed: 11/16/2022] Open
Abstract
Lignin derivatives have potential as antioxidants in advanced packaging materials through their ability to scavenge oxygen in reactions catalyzed by phenol-oxidizing enzymes, such as laccase. The effects of size fractionation of lignosulfonates on laccase-catalyzed reactions were investigated in experiments with aqueous solutions, films, and coated paperboard. Four industrial lignosulfonate preparations were compared: Feed (unfractionated), Prod (5-60 kDa enriched), Conc (≥60 kDa enriched), and Perm (≤60 kDa enriched). Extraction of lignosulfonates from films showed that the enzymic reaction increased the average molecular weight from <10,000 to up to 66,000. The enzymatic reaction resulted in an increase in the water contact angle of the films from the range 25-49° to 56-81°. The four preparations showed relatively small differences with regard to their ability to scavenge oxygen in aqueous solution and in experiments with coated paperboards in sealed chambers. Coatings with lignosulfonates where the contents of low-molecular weight material had been reduced (i.e., Prod and Conc) showed improved water resistance after the enzymic reaction. Thus, in both aqueous and solid media, fractionation of lignosulfonates had little effect on oxygen scavenging, but fractionation was beneficial for other reasons, such as improved cross-linking resulting in higher molecular weight and superior water resistance.
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Affiliation(s)
| | - Lars Järnström
- Department of Chemical Engineering, Karlstad University, SE-651 88 Karlstad, Sweden;
| | - Leif J. Jönsson
- Department of Chemistry, Umeå University, SE-901 87 Umeå, Sweden;
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Lizundia E, Sipponen MH, Greca LG, Balakshin M, Tardy BL, Rojas OJ, Puglia D. Multifunctional lignin-based nanocomposites and nanohybrids. GREEN CHEMISTRY : AN INTERNATIONAL JOURNAL AND GREEN CHEMISTRY RESOURCE : GC 2021; 23:6698-6760. [PMID: 34671223 PMCID: PMC8452181 DOI: 10.1039/d1gc01684a] [Citation(s) in RCA: 42] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/12/2021] [Accepted: 08/20/2021] [Indexed: 05/05/2023]
Abstract
Significant progress in lignins valorization and development of high-performance sustainable materials have been achieved in recent years. Reports related to lignin utilization indicate excellent prospects considering green chemistry, chemical engineering, energy, materials and polymer science, physical chemistry, biochemistry, among others. To fully realize such potential, one of the most promising routes involves lignin uses in nanocomposites and nanohybrid assemblies, where synergistic interactions are highly beneficial. This review first discusses the interfacial assembly of lignins with polysaccharides, proteins and other biopolymers, for instance, in the synthesis of nanocomposites. To give a wide perspective, we consider the subject of hybridization with metal and metal oxide nanoparticles, as well as uses as precursor of carbon materials and the assembly with other biobased nanoparticles, for instance to form nanohybrids. We provide cues to understand the fundamental aspects related to lignins, their self-assembly and supramolecular organization, all of which are critical in nanocomposites and nanohybrids. We highlight the possibilities of lignin in the fields of flame retardancy, food packaging, plant protection, electroactive materials, energy storage and health sciences. The most recent outcomes are evaluated given the importance of lignin extraction, within established and emerging biorefineries. We consider the benefit of lignin compared to synthetic counterparts. Bridging the gap between fundamental and application-driven research, this account offers critical insights as far as the potential of lignin as one of the frontrunners in the uptake of bioeconomy concepts and its application in value-added products.
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Affiliation(s)
- Erlantz Lizundia
- Life Cycle Thinking group, Department of Graphic Design and Engineering Projects, Faculty of Engineering in Bilbao, University of the Basque Country (UPV/EHU) Bilbao 48013 Spain
- BCMaterials, Basque Center Centre for Materials, Applications and Nanostructures UPV/EHU Science Park 48940 Leioa Spain
| | - Mika H Sipponen
- Department of Materials and Environmental Chemistry, Stockholm University Svante Arrhenius väg 16C SE-106 91 Stockholm Sweden
| | - Luiz G Greca
- Department of Bioproducts and Biosystems, School of Chemical Engineering, Aalto University P.O. Box 16300 FI-00076 Aalto Finland
| | - Mikhail Balakshin
- Department of Bioproducts and Biosystems, School of Chemical Engineering, Aalto University P.O. Box 16300 FI-00076 Aalto Finland
| | - Blaise L Tardy
- Department of Bioproducts and Biosystems, School of Chemical Engineering, Aalto University P.O. Box 16300 FI-00076 Aalto Finland
| | - Orlando J Rojas
- Department of Bioproducts and Biosystems, School of Chemical Engineering, Aalto University P.O. Box 16300 FI-00076 Aalto Finland
- Bioproducts Institute, Department of Chemical and Biological Engineering, Department of Chemistry, and Department of Wood Science, University of British Columbia 2360 East Mall Vancouver BC V6T 1Z4 Canada
| | - Debora Puglia
- Civil and Environmental Engineering Department, University of Perugia Strada di Pentima 4 05100 Terni Italy
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Dynamic Mechanical Analysis and Thermal Expansion of Lignin-Based Biopolymers. Polymers (Basel) 2021; 13:polym13172953. [PMID: 34502993 PMCID: PMC8434355 DOI: 10.3390/polym13172953] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2021] [Revised: 08/23/2021] [Accepted: 08/26/2021] [Indexed: 12/03/2022] Open
Abstract
Biodegradable materials investigation has become a necessity and a direction for many researchers worldwide. The main goal is to find sustainable alternatives which gradually replace plastics based on fossil resources from the market, because they are very harmful to the environment and to overall quality of life. In order to get to the stage of obtaining different functional parts from biodegradable materials, it is necessary to study their properties. Taking into account these shortcomings, this paper aims at the mechanical characterization (DMA—Dynamic Mechanical Analysis) and thermal degradation (thermogravimetric analysis (TGA)) of lignin-based biopolymers: Arboform LV3 Nature®, Arboblend® V2 Nature, and Arbofill® Fichte Arboform® LV3 Nature reinforced with aramid fibers. The tested samples were obtained by using the most common fabrication technique for polymers—injection molding. The obtained results for the DMA analysis showed separate polymeric-specific regions for each material and, based on the tanδ values between (0.37–0.54), a series of plastics could be proposed for replacement. The mechano-dynamic behavior could be correlated with the thermal expansion of biopolymers for temperatures higher than 50/55 °C, which are thermally stable up to temperatures of at least 250 °C.
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Abstract
The green nanocomposites have elite features of sustainable polymers and eco-friendly nanofillers. The green or eco-friendly nanomaterials are low cost, lightweight, eco-friendly, and highly competent for the range of energy applications. This article initially expresses the notions of eco-polymers, eco-nanofillers, and green nanocomposites. Afterward, the energy-related applications of the green nanocomposites have been specified. The green nanocomposites have been used in various energy devices such as solar cells, batteries, light-emitting diodes, etc. The main focus of this artifact is the energy storage application of green nanocomposites. The capacitors have been recognized as corporate devices for energy storage, particularly electrical energy. In this regard, high-performance supercapacitors have been proposed based on sustainable nanocomposites. Consequently, this article presents various approaches providing key knowledge for the design and development of multi-functional energy storage materials. In addition, the future prospects of the green nanocomposites towards energy storage have been discussed.
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Maraveas C, Bayer IS, Bartzanas T. Recent Advances in Antioxidant Polymers: From Sustainable and Natural Monomers to Synthesis and Applications. Polymers (Basel) 2021; 13:polym13152465. [PMID: 34372069 PMCID: PMC8347842 DOI: 10.3390/polym13152465] [Citation(s) in RCA: 27] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2021] [Revised: 07/22/2021] [Accepted: 07/23/2021] [Indexed: 12/27/2022] Open
Abstract
Advances in technology have led to the production of sustainable antioxidants and natural monomers for food packaging and targeted drug delivery applications. Of particular importance is the synthesis of lignin polymers, and graft polymers, dopamine, and polydopamine, inulin, quercetin, limonene, and vitamins, due to their free radical scavenging ability, chemical potency, ideal functional groups for polymerization, abundance in the natural environment, ease of production, and activation of biological mechanisms such as the inhibition of the cellular activation of various signaling pathways, including NF-κB and MAPK. The radical oxygen species are responsible for oxidative damage and increased susceptibility to cancer, cardiovascular, degenerative musculoskeletal, and neurodegenerative conditions and diabetes; such biological mechanisms are inhibited by both synthetic and naturally occurring antioxidants. The orientation of macromolecules in the presence of the plasticizing agent increases the suitability of quercetin in food packaging, while the commercial viability of terpenes in the replacement of existing non-renewable polymers is reinforced by the recyclability of the precursors (thyme, cannabis, and lemon, orange, mandarin) and marginal ecological effect and antioxidant properties. Emerging antioxidant nanoparticle polymers have a broad range of applications in tumor-targeted drug delivery, food fortification, biodegradation of synthetic polymers, and antimicrobial treatment and corrosion inhibition. The aim of the review is to present state-of-the-art polymers with intrinsic antioxidant properties, including synthesis scavenging activity, potential applications, and future directions. This review is distinct from other works given that it integrates different advances in antioxidant polymer synthesis and applications such as inulin, quercetin polymers, their conjugates, antioxidant-graft-polysaccharides, and polymerization vitamins and essential oils. One of the most comprehensive reviews of antioxidant polymers was published by Cirillo and Iemma in 2012. Since then, significant progress has been made in improving the synthesis, techniques, properties, and applications. The review builds upon existing research by presenting new findings that were excluded from previous reviews.
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Affiliation(s)
- Chrysanthos Maraveas
- Department of Natural Resources and Agricultural Engineering, Agricultural University of Athens, 11855 Athens, Greece;
- Correspondence: (C.M.); (I.S.B.)
| | - Ilker S. Bayer
- Smart Materials, Istituto Italiano di Tecnologia, 16163 Genova, Italy
- Correspondence: (C.M.); (I.S.B.)
| | - Thomas Bartzanas
- Department of Natural Resources and Agricultural Engineering, Agricultural University of Athens, 11855 Athens, Greece;
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Abstract
Thermal degradation of lignin in nitrogen atmosphere is evaluated by linear heating and isothermal tests. While linear heating suggests that thermal decomposition in the 200–400 °C range mainly consists of a single step, a careful analysis of isothermal tests points to different lignin fractions having different stabilities. This is an important point for practical predictions, since kinetics obtained as if the degradations at different temperatures were the same would lack practical utility. Instead, stairway type tests are proposed to evaluate the degradation rates and sample quantities involved at the temperatures of interest.
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49
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Liu C, Luan P, Li Q, Cheng Z, Xiang P, Liu D, Hou Y, Yang Y, Zhu H. Biopolymers Derived from Trees as Sustainable Multifunctional Materials: A Review. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2021; 33:e2001654. [PMID: 32864821 DOI: 10.1002/adma.202001654] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/08/2020] [Revised: 05/15/2020] [Indexed: 05/22/2023]
Abstract
The world is currently transitioning from a fossil-fuel-driven energy economy to one that is supplied by more renewable and sustainable materials. Trees as the most abundant renewable bioresource have attracted significant attention for advanced materials and manufacturing in this epochal transition. Trees are composed with complex structures and components such as trunk (stem and bark), leaf, flower, seed, and root. Although many excellent reviews have been published regarding advanced applications of wood and wood-derived biopolymers in different fields, such as energy, electronics, biomedical, and water treatment, no reviews have revisited and systematically discussed functional materials and even devices derived from trees in a full scope yet. Therefore, a timely summary of the recent development of materials and structures derived from different parts of trees for sustainability is prsented here. A concise introduction to the different parts of the trees is given first, which is followed by the corresponding chemistry and preparation of functional materials using various biopolymers from trees. The most promising applications of biopolymer-based materials are discussed subsequently. A comprehensive review of the different parts of trees as sustainable functional materials and devices for critical applications is thus provided.
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Affiliation(s)
- Chao Liu
- Department of Industrial and Mechanical Engineering, Northeastern University, 360 Huntington Ave, Boston, MA, 02115, USA
| | - Pengcheng Luan
- Department of Industrial and Mechanical Engineering, Northeastern University, 360 Huntington Ave, Boston, MA, 02115, USA
| | - Qiang Li
- Department of Industrial and Mechanical Engineering, Northeastern University, 360 Huntington Ave, Boston, MA, 02115, USA
| | - Zheng Cheng
- State Key Laboratory of Pulp and Paper Engineering, South China University of Technology, Guangzhou, 510640, China
| | - Pengyang Xiang
- Department of Industrial and Mechanical Engineering, Northeastern University, 360 Huntington Ave, Boston, MA, 02115, USA
| | - Detao Liu
- State Key Laboratory of Pulp and Paper Engineering, South China University of Technology, Guangzhou, 510640, China
| | - Yi Hou
- State Key Laboratory of Pulp and Paper Engineering, South China University of Technology, Guangzhou, 510640, China
| | - Yang Yang
- Department of Industrial and Mechanical Engineering, Northeastern University, 360 Huntington Ave, Boston, MA, 02115, USA
| | - Hongli Zhu
- Department of Industrial and Mechanical Engineering, Northeastern University, 360 Huntington Ave, Boston, MA, 02115, USA
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Maraveas C, Bayer IS, Bartzanas T. 4D printing: Perspectives for the production of sustainable plastics for agriculture. Biotechnol Adv 2021; 54:107785. [PMID: 34111517 DOI: 10.1016/j.biotechadv.2021.107785] [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: 02/28/2021] [Revised: 05/14/2021] [Accepted: 06/04/2021] [Indexed: 12/17/2022]
Abstract
The concept of 4D printing of phase change materials is gaining attention in the potential development of self-healing materials for tissue engineering and manufacturing applications, but there has been limited utilization of the technology in agriculture/farm-based applications. The temperature-responsiveness, magneto-responsiveness, pH-responsiveness, and osmotic pressure-responsiveness of shape-memory materials have potential applications in green/compostable plastics for agricultural applications such as food packaging and mulching films, shade nets, and greenhouse polymer covers. The application of 4D printing in augmenting the biodegradability, environmental, economic, and production benefits of polymers in agriculture is the main focus of this review. So far,; little scholarly and industry attention have been directed to agricultural applications even though shape memory polymers are ideal for such applications compared to existing materials due to smart/intelligent behavior, optimized performance through fiber/nanomaterial reinforcement and multilayered composites. The practical constraints relate to the newness of the 4D printing process, customized synthetic routes for application-specific materials. The constraints can be resolved using novel and customized processes such as fused deposition modeling (FDM) and stereo-lithography and ink-jet printing, which are facile, scalable and affordable 4D printing techniques, that are highly effective compared to powder bed printing, and other droplet-based printing technologies, and photo-polymerization methods. FDM has led to the generation of PLA and other polymers with self-deformation and controllable shape memory effects. Future applications should overcome constraints linked to machine workload limitations and 3D/4D printing constraints.
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Affiliation(s)
| | - Ilker S Bayer
- Smart Materials, Istituto Italiano di Tecnologia, Genova, Italy
| | - Thomas Bartzanas
- Farm Structures Lab., Department of Natural Resources and Agricultural Engineering, Agricultural University of Athens, Greece
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