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Zaman I, Turjya RR, Shakil MS, Al Shahariar M, Emu MRRH, Ahmed A, Hossain MM. Biodegradation of polyethylene and polystyrene by Zophobas atratus larvae from Bangladeshi source and isolation of two plastic-degrading gut bacteria. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2024; 345:123446. [PMID: 38295931 DOI: 10.1016/j.envpol.2024.123446] [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: 10/25/2023] [Revised: 01/22/2024] [Accepted: 01/23/2024] [Indexed: 03/13/2024]
Abstract
Plastic pollution has become a major environmental concern globally, and novel and eco-friendly approaches like bioremediation are essential to mitigate the impact. Low-density polyethylene (LDPE), linear low-density polyethylene (LLDPE), and expanded polystyrene (EPS) are three of the most frequently used plastic types. This study examined biodegradation of these using Zophobas atratus larvae, followed by isolation and whole genome sequencing of gut bacteria collected from larvae frass. Over 36 days, 24.04 % LDPE, 20.01 % EPS, and 15.12 % LLDPE were consumed on average by the larvae, with survival rates of 85 %, 90 %, and 87 %, respectively. Fourier transform infrared spectroscopy (FTIR) analysis of fresh plastic types, consumed plastics, and larvae frass showed proof of plastic oxidation in the gut. Frass bacteria were isolated and cultured in minimal salt media supplemented with plastics as the sole carbon source. Two isolates of bacteria were sampled from these cultures, designated PDB-1 and PDB-2. PDB-1 could survive on LDPE and LLDPE as carbon sources, whereas PDB-2 could survive on EPS. Scanning Electron Microscopy (SEM) provided proof of degradation in both cases. Both isolates were identified as strains of Pseudomonas aeruginosa, followed by sequencing, assembly, and annotation of their genomes. LDPE- and LLDPE-degrading enzymes e.g., P450 monooxygenase, alkane monooxygenase, alcohol dehydrogenase, etc. were identified in PDB-1. Similarly, phenylacetaldehyde dehydrogenase and other enzymes involved in EPS degradation were identified in PDB-2. Genes of both isolates were compared with genomes of known plastic-degrading P. aeruginosa strains. Virulence factors, antibiotic-resistance genes, and rhamnolipid biosurfactant biosynthesis genes were also identified in both isolates. This study indicated Zophobas atratus larvae as potential LDPE, LLDPE, and EPS biodegradation agent. Additionally, the isolated strains of Pseudomonas aeruginosa provide a more direct and eco-friendly solution for plastic degradation. Confirmation and modification of the plastic-degrading pathways in the bacteria may create scope for metabolic engineering in the future.
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Affiliation(s)
- Ifthikhar Zaman
- Department of Mathematics and Natural Sciences, BRAC University, 66 Mohakhali, Dhaka, 1212, Bangladesh.
| | - Rafeed Rahman Turjya
- Department of Genetic Engineering and Biotechnology, University of Dhaka, Ramna, Dhaka, 1000, Bangladesh.
| | - Md Salman Shakil
- Department of Mathematics and Natural Sciences, BRAC University, 66 Mohakhali, Dhaka, 1212, Bangladesh.
| | - Mahruf Al Shahariar
- Department of Mathematics and Natural Sciences, BRAC University, 66 Mohakhali, Dhaka, 1212, Bangladesh.
| | | | - Akash Ahmed
- Department of Mathematics and Natural Sciences, BRAC University, 66 Mohakhali, Dhaka, 1212, Bangladesh.
| | - M Mahboob Hossain
- Department of Mathematics and Natural Sciences, BRAC University, 66 Mohakhali, Dhaka, 1212, Bangladesh.
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Rabot C, Chen Y, Lin SY, Miller B, Chiang YM, Oakley CE, Oakley BR, Wang CCC, Williams TJ. Polystyrene Upcycling into Fungal Natural Products and a Biocontrol Agent. J Am Chem Soc 2023; 145:5222-5230. [PMID: 36779837 PMCID: PMC11062757 DOI: 10.1021/jacs.2c12285] [Citation(s) in RCA: 12] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/14/2023]
Abstract
Polystyrene (PS) is one of the most used yet infrequently recycled plastics. Although manufactured on the scale of 300 million tons per year globally, current approaches toward PS degradation are energy- and carbon-inefficient, slow, and/or limited in the value that they reclaim. We recently reported a scalable process to degrade post-consumer polyethylene-containing waste streams into carboxylic diacids. Engineered fungal strains then upgrade these diacids biosynthetically to synthesize pharmacologically active secondary metabolites. Herein, we apply a similar reaction to rapidly convert PS to benzoic acid in high yield. Engineered strains of the filamentous fungus Aspergillus nidulans then biosynthetically upgrade PS-derived crude benzoic acid to the structurally diverse secondary metabolites ergothioneine, pleuromutilin, and mutilin. Further, we expand the catalog of plastic-derived products to include spores of the industrially relevant biocontrol agent Aspergillus flavus Af36 from crude PS-derived benzoic acid.
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Affiliation(s)
- Chris Rabot
- Department of Pharmacology & Pharmaceutical Sciences, University of Southern California, 1985 Zonal Ave, Los Angeles, California 90089 United States
| | - Yuhao Chen
- Department of Chemistry, Donald P. and Katherine B. Loker Hydrocarbon Institute, University of Southern California, 837 Bloom Walk, Los Angeles, California 90089 United States
- Wrigley Institute for Environmental Studies, 3454 Trousdale Parkway, Los Angeles, California 90089 United States
| | - Shu-Yi Lin
- Department of Pharmacology & Pharmaceutical Sciences, University of Southern California, 1985 Zonal Ave, Los Angeles, California 90089 United States
| | - Ben Miller
- Department of Pharmacology & Pharmaceutical Sciences, University of Southern California, 1985 Zonal Ave, Los Angeles, California 90089 United States
- Department of Chemistry, Donald P. and Katherine B. Loker Hydrocarbon Institute, University of Southern California, 837 Bloom Walk, Los Angeles, California 90089 United States
| | - Yi-Ming Chiang
- Department of Pharmacology & Pharmaceutical Sciences, University of Southern California, 1985 Zonal Ave, Los Angeles, California 90089 United States
| | - C Elizabeth Oakley
- Department of Molecular Biosciences, University of Kansas, 1200 Sunnyside Avenue, Lawrence, Kansas 66045 United States
| | - Berl R Oakley
- Department of Molecular Biosciences, University of Kansas, 1200 Sunnyside Avenue, Lawrence, Kansas 66045 United States
| | - Clay C C Wang
- Department of Pharmacology & Pharmaceutical Sciences, University of Southern California, 1985 Zonal Ave, Los Angeles, California 90089 United States
- Department of Chemistry, Donald P. and Katherine B. Loker Hydrocarbon Institute, University of Southern California, 837 Bloom Walk, Los Angeles, California 90089 United States
- Wrigley Institute for Environmental Studies, 3454 Trousdale Parkway, Los Angeles, California 90089 United States
| | - Travis J Williams
- Department of Chemistry, Donald P. and Katherine B. Loker Hydrocarbon Institute, University of Southern California, 837 Bloom Walk, Los Angeles, California 90089 United States
- Wrigley Institute for Environmental Studies, 3454 Trousdale Parkway, Los Angeles, California 90089 United States
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Kim J, Park H, Yoon C. Advances in Biodegradable Soft Robots. Polymers (Basel) 2022; 14:polym14214574. [PMID: 36365570 PMCID: PMC9658808 DOI: 10.3390/polym14214574] [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: 10/07/2022] [Revised: 10/20/2022] [Accepted: 10/25/2022] [Indexed: 11/23/2022] Open
Abstract
Biodegradable soft robots have been proposed for a variety of intelligent applications in soft robotics, flexible electronics, and bionics. Biodegradability offers an extraordinary functional advantage to soft robots for operations accompanying smart shape transformation in response to external stimuli such as heat, pH, and light. This review primarily surveyed the current advanced scientific and engineering strategies for integrating biodegradable materials within stimuli-responsive soft robots. It also focused on the fabrication methodologies of multiscale biodegradable soft robots, and highlighted the role of biodegradable soft robots in enhancing the multifunctional properties of drug delivery capsules, biopsy tools, smart actuators, and sensors. Lastly, the current challenges and perspectives on the future development of intelligent soft robots for operation in real environments were discussed.
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Affiliation(s)
- Jiwon Kim
- Department of Mechanical Systems Engineering, Sookmyung Women’s University, Seoul 04310, Korea
| | - Harim Park
- Department of Mechanical Systems Engineering, Sookmyung Women’s University, Seoul 04310, Korea
| | - ChangKyu Yoon
- Department of Mechanical Systems Engineering, Sookmyung Women’s University, Seoul 04310, Korea
- Institute of Advanced Materials and Systems, Sookmyung Women’s University, Seoul 04310, Korea
- Correspondence:
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Jarosz S, Sokołowska P, Szyszka Ł. Synthesis of fine chemicals with high added value from sucrose: Towards sucrose-based macrocycles. Tetrahedron Lett 2020. [DOI: 10.1016/j.tetlet.2020.151888] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
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5
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Lou Y, Ekaterina P, Yang SS, Lu B, Liu B, Ren N, Corvini PFX, Xing D. Biodegradation of Polyethylene and Polystyrene by Greater Wax Moth Larvae ( Galleria mellonella L.) and the Effect of Co-diet Supplementation on the Core Gut Microbiome. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2020; 54:2821-2831. [PMID: 32013402 DOI: 10.1021/acs.est.9b07044] [Citation(s) in RCA: 115] [Impact Index Per Article: 28.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/26/2023]
Abstract
Plastics waste and microplastics including polyethylene (PE) and polystyrene (PS) have been an environmental concern for years. Recent research has revealed that larvae of Galleria mellonella are capable of biodegrading low density PE film. In this study, we tested the feasibility of enhancing larval survival and the effect of supplementing the co-diet on plastic degradation by feeding the larvae beeswax or wheat bran as a co-diet. Significant mass loss of plastic was observed over a 21-day period, i.e., with respective consumption of 0.88 and 1.95 g by 150 larvae fed only either PS or PE. The formation of C═O and C-O containing functional groups and long chain fatty acids as the metabolic intermediates of plastics in the residual polymers indicated depolymerization and biodegradation. Supplementing beeswax and bran increased the survival rates but decreased the consumption of plastic. The changes in the gut microbiome revealed that Bacillus and Serratia were significantly associated with the PS and PE diets. Beeswax and bran showed different shaping effects on the core gut microbiome of larvae fed the PE and PS. These results suggest that supplementing the co-diet affected the physiological properties of the larvae and plastic biodegradation and shaped the core gut microbiome.
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Affiliation(s)
- Yu Lou
- State Key Laboratory of Urban Water Resource and Environment, School of Environment, Harbin Institute of Technology, Harbin 150090, P. R. China
| | - Pererva Ekaterina
- State Key Laboratory of Urban Water Resource and Environment, School of Environment, Harbin Institute of Technology, Harbin 150090, P. R. China
| | - Shan-Shan Yang
- State Key Laboratory of Urban Water Resource and Environment, School of Environment, Harbin Institute of Technology, Harbin 150090, P. R. China
| | - Baiyun Lu
- State Key Laboratory of Urban Water Resource and Environment, School of Environment, Harbin Institute of Technology, Harbin 150090, P. R. China
| | - Bingfeng Liu
- State Key Laboratory of Urban Water Resource and Environment, School of Environment, Harbin Institute of Technology, Harbin 150090, P. R. China
| | - Nanqi Ren
- State Key Laboratory of Urban Water Resource and Environment, School of Environment, Harbin Institute of Technology, Harbin 150090, P. R. China
| | - Philippe F-X Corvini
- Institute for Ecopreneurship, School of Life Sciences, University of Applied Sciences and Arts Northwestern Switzerland, Gründenstrasse 40, Muttenz CH-4132, Switzerland
| | - Defeng Xing
- State Key Laboratory of Urban Water Resource and Environment, School of Environment, Harbin Institute of Technology, Harbin 150090, P. R. China
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Singhvi MS, Zinjarde SS, Gokhale DV. Polylactic acid: synthesis and biomedical applications. J Appl Microbiol 2019; 127:1612-1626. [PMID: 31021482 DOI: 10.1111/jam.14290] [Citation(s) in RCA: 301] [Impact Index Per Article: 60.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2019] [Revised: 03/29/2019] [Accepted: 04/16/2019] [Indexed: 12/13/2022]
Abstract
Social and economic development has driven considerable scientific and engineering efforts on the discovery, development and utilization of polymers. Polylactic acid (PLA) is one of the most promising biopolymers as it can be produced from nontoxic renewable feedstock. PLA has emerged as an important polymeric material for biomedical applications on account of its properties such as biocompatibility, biodegradability, mechanical strength and process ability. Lactic acid (LA) can be obtained by fermentation of sugars derived from renewable resources such as corn and sugarcane. PLA is thus an eco-friendly nontoxic polymer with features that permit use in the human body. Although PLA has a wide spectrum of applications, there are certain limitations such as slow degradation rate, hydrophobicity and low impact toughness associated with its use. Blending PLA with other polymers offers convenient options to improve associated properties or to generate novel PLA polymers/blends for target applications. A variety of PLA blends have been explored for various biomedical applications such as drug delivery, implants, sutures and tissue engineering. PLA and their copolymers are becoming widely used in tissue engineering for function restoration of impaired tissues due to their excellent biocompatibility and mechanical properties. The relationship between PLA material properties, manufacturing processes and development of products with desirable characteristics is described in this article. LA production, PLA synthesis and their applications in the biomedical field are also discussed.
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Affiliation(s)
- M S Singhvi
- Institute of Bioinformatics and Biotechnology, Savitribai Phule Pune University, Pune, India
| | - S S Zinjarde
- Institute of Bioinformatics and Biotechnology, Savitribai Phule Pune University, Pune, India
| | - D V Gokhale
- CSIR-National Chemical Laboratory, NCIM Resource Centre, Pune, India
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Ho BT, Roberts TK, Lucas S. An overview on biodegradation of polystyrene and modified polystyrene: the microbial approach. Crit Rev Biotechnol 2017; 38:308-320. [DOI: 10.1080/07388551.2017.1355293] [Citation(s) in RCA: 106] [Impact Index Per Article: 15.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Affiliation(s)
- Ba Thanh Ho
- Faculty of Environment and Natural Resources, Nong Lam University, Ho Chi Minh City, Vietnam
| | - Timothy K. Roberts
- The Tom Farrell Institute for The Environment, University of Newcastle, Newcastle, NSW, Australia
| | - Steven Lucas
- The Tom Farrell Institute for The Environment, University of Newcastle, Newcastle, NSW, Australia
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Wilkes RA, Aristilde L. Degradation and metabolism of synthetic plastics and associated products by Pseudomonas sp.: capabilities and challenges. J Appl Microbiol 2017; 123:582-593. [PMID: 28419654 DOI: 10.1111/jam.13472] [Citation(s) in RCA: 194] [Impact Index Per Article: 27.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2017] [Revised: 03/17/2017] [Accepted: 04/10/2017] [Indexed: 11/27/2022]
Abstract
Synthetic plastics, which are widely present in materials of everyday use, are ubiquitous and slowly-degrading polymers in environmental wastes. Of special interest are the capabilities of microorganisms to accelerate their degradation. Members of the metabolically diverse genus Pseudomonas are of particular interest due to their capabilities to degrade and metabolize synthetic plastics. Pseudomonas species isolated from environmental matrices have been identified to degrade polyethylene, polypropylene, polyvinyl chloride, polystyrene, polyurethane, polyethylene terephthalate, polyethylene succinate, polyethylene glycol and polyvinyl alcohol at varying degrees of efficiency. Here, we present a review of the current knowledge on the factors that control the ability of Pseudomonas sp. to process these different plastic polymers and their by-products. These factors include cell surface attachment within biofilms, catalytic enzymes involved in oxidation or hydrolysis of the plastic polymer, metabolic pathways responsible for uptake and assimilation of plastic fragments and chemical factors that are advantageous or inhibitory to the biodegradation process. We also highlight future research directions required in order to harness fully the capabilities of Pseudomonas sp. in bioremediation strategies towards eliminating plastic wastes.
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Affiliation(s)
- R A Wilkes
- Department of Biological and Environmental Engineering, College of Agriculture and Life Sciences, Cornell University, Ithaca, NY, USA
| | - L Aristilde
- Department of Biological and Environmental Engineering, College of Agriculture and Life Sciences, Cornell University, Ithaca, NY, USA
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9
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Raposo CD, Petrova KT, Barros MT. Synthesis of cross-linked polymeric microparticles containing hexa-O-benzylsucrose. Des Monomers Polym 2015. [DOI: 10.1080/15685551.2015.1070507] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022] Open
Affiliation(s)
- Cláudia D. Raposo
- LAQV, REQUIMTE, Departamento de Química, Faculdade de Ciências e Tecnologia, Universidade Nova de Lisboa, 2829-516 Caparica, Portugal
| | - Krasimira T. Petrova
- LAQV, REQUIMTE, Departamento de Química, Faculdade de Ciências e Tecnologia, Universidade Nova de Lisboa, 2829-516 Caparica, Portugal
| | - M. Teresa Barros
- LAQV, REQUIMTE, Departamento de Química, Faculdade de Ciências e Tecnologia, Universidade Nova de Lisboa, 2829-516 Caparica, Portugal
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10
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Wang X, Ding M, Liu Z, Wang D. Synthesis of a chitosan-based functional biopolymer with both catalytic and binding groups for protein and DNA hydrolysis. RSC Adv 2015. [DOI: 10.1039/c4ra15828h] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023] Open
Abstract
Protein and DNA hydrolysis by chitosan-based biopolymer with catalytic and binding groups.
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Affiliation(s)
- Xingyu Wang
- College of Food Science and Engineering
- Ocean University of China
- Qingdao
- China
| | - Mei Ding
- College of Food Science and Engineering
- Ocean University of China
- Qingdao
- China
| | - Zihui Liu
- College of Food Science and Engineering
- Ocean University of China
- Qingdao
- China
| | - Dongfeng Wang
- College of Food Science and Engineering
- Ocean University of China
- Qingdao
- China
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12
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13
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Synthesis of hydrophilic and amphiphilic acryl sucrose monomers and their co-polymerisation with styrene, methylmethacrylate and α- and β-pinenes. Int J Mol Sci 2010; 11:1792-807. [PMID: 20480042 PMCID: PMC2871138 DOI: 10.3390/ijms11041792] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2010] [Revised: 04/03/2010] [Accepted: 04/12/2010] [Indexed: 11/17/2022] Open
Abstract
Herein, we report the synthesis of monomethacryloyl sucrose esters, and their successful free radical homo- and co-polymerisation with styrene, methylmethacrylate, α-and β-pinene. The chemical, physical, structural and surface chemical properties of these polymers, containing a hydrophobic olefin backbone and hydrophilic sugar moieties as side chains, have been investigated. Biodegradation tests of the copolymer samples by a microbial fungal culture (Aspergillus niger) method showed good biodegradability. The chemical structure and surface chemistry of the synthesized homo- and co-polymers demonstrate their potential technological relevance as amphiphilic and biodegradable polymers.
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14
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Barros MT, Petrova KT. Ziegler–Natta catalysed polymerisation for the preparation of copolymers with pendant sucrose moieties. Eur Polym J 2009. [DOI: 10.1016/j.eurpolymj.2008.10.013] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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15
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Biofilm formation and partial biodegradation of polystyrene by the actinomycete Rhodococcus ruber. Biodegradation 2008; 19:851-8. [DOI: 10.1007/s10532-008-9188-0] [Citation(s) in RCA: 109] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2007] [Accepted: 03/28/2008] [Indexed: 10/22/2022]
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17
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Singh B, Sharma N. Optimized synthesis and characterization of polystyrene graft copolymers and preliminary assessment of their biodegradability and application in water pollution alleviation technologies. Polym Degrad Stab 2007. [DOI: 10.1016/j.polymdegradstab.2007.01.019] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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18
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Novel unsaturated sucrose ethers and their application as monomers. Molecules 2007; 13:762-70. [PMID: 18463572 PMCID: PMC6245388 DOI: 10.3390/molecules13040762] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2008] [Revised: 03/26/2008] [Accepted: 03/26/2008] [Indexed: 11/17/2022] Open
Abstract
Novel unsaturated ethers were synthesised in good yields starting from sucrose, using a two-step mild and efficient procedure based on the Gassman method, which consists in forming a vinyl group by the elimination of ethanol from mixed acetals with trimethylsilyl trifluoromethanesulfonate in the presence of alkyl amines. Mixed acetals are readily obtained from the corresponding alcohols and ethyl vinyl ether, using an acidic catalyst. Conventional etherification involving a primary halide was also examined. The monomers thus obtained were successfully polymerised by a free radical mechanism, yielding unbranched linear and soluble polymers with pending sucrose moieties, and some of their physical properties were determined.
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Sugar-linked biodegradable polymers: Regio-specific ester bonds of glucose hydroxyls in their reaction with maleic anhydride functionalized polystyrene and elucidation of the polymer structures formed. Carbohydr Polym 2007. [DOI: 10.1016/j.carbpol.2006.06.035] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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Queneau Y, Jarosz S, Lewandowski B, Fitremann J. Sucrose Chemistry and Applications of Sucrochemicals. Adv Carbohydr Chem Biochem 2007; 61:217-92. [DOI: 10.1016/s0065-2318(07)61005-1] [Citation(s) in RCA: 69] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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Singh R, Singh S, Trimukhe K, Pandare K, Bastawade K, Gokhale D, Varma A. Lignin–carbohydrate complexes from sugarcane bagasse: Preparation, purification, and characterization. Carbohydr Polym 2005. [DOI: 10.1016/j.carbpol.2005.07.011] [Citation(s) in RCA: 70] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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23
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Ball P. Sugar turns plastics biodegradable. Nature 2002. [DOI: 10.1038/news021125-12] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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