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Chen X, Yang T, Cai X, Liu Y, Huang C, He J, Tian D, Yang G, Shen F, Zhang Y. Eco-friendly hydrogel based on locust bean gum for water retaining in sandy soil. Int J Biol Macromol 2024; 275:133490. [PMID: 38960257 DOI: 10.1016/j.ijbiomac.2024.133490] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2024] [Revised: 06/23/2024] [Accepted: 06/26/2024] [Indexed: 07/05/2024]
Abstract
Sandy soils are suffering from water loss and desertification, which severely restrict the development of local agriculture. In this work, an eco-friendly hydrogel composed of borax and locust bean gum was synthesized to enhance the water retention capacity of sandy soil and support agricultural development in arid regions. Locust bean gum/borax hydrogel with a 3D network structure exhibited great water-absorbing capacity (130.29 g/g) within 30 min. After mixing 0.9 wt% hydrogel with sandy soil, the maximum soil water content, water retention time, soil porosity and soil organic matter were increased by 32.03 %, 14 days, 38.9 % and 8.64 g/kg respectively. Little effect on soil microorganisms revealed barely toxicity. Furthermore, the hydrogel was confirmed to be biodegradable at 43.47 % after 4 weeks. According to the study, locust bean gum/borax hydrogel possesses good water absorbing capacity, soil water retention ability, soil optimization ability and low adverse environmental impact. Together, it is inferred that the hydrogel can improve the water retention capacity of sandy soil in arid areas, promoting plant growth in arid areas.
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Affiliation(s)
- Xule Chen
- College of Environment Sciences, Sichuan Agricultural University, Chengdu 611130, China
| | - Tong Yang
- College of Environment Sciences, Sichuan Agricultural University, Chengdu 611130, China
| | - Xinglu Cai
- College of Environment Sciences, Sichuan Agricultural University, Chengdu 611130, China
| | - Yan Liu
- College of Environment Sciences, Sichuan Agricultural University, Chengdu 611130, China.
| | - Chengyi Huang
- College of Environment Sciences, Sichuan Agricultural University, Chengdu 611130, China
| | - Jinsong He
- College of Environment Sciences, Sichuan Agricultural University, Chengdu 611130, China
| | - Dong Tian
- College of Environment Sciences, Sichuan Agricultural University, Chengdu 611130, China
| | - Gang Yang
- College of Environment Sciences, Sichuan Agricultural University, Chengdu 611130, China
| | - Fei Shen
- College of Environment Sciences, Sichuan Agricultural University, Chengdu 611130, China
| | - Yanzong Zhang
- College of Environment Sciences, Sichuan Agricultural University, Chengdu 611130, China.
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2
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Gong J, Hou L, Ching YC, Ching KY, Hai ND, Chuah CH. A review of recent advances of cellulose-based intelligent-responsive hydrogels as vehicles for controllable drug delivery system. Int J Biol Macromol 2024; 264:130525. [PMID: 38431004 DOI: 10.1016/j.ijbiomac.2024.130525] [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: 08/12/2023] [Revised: 02/17/2024] [Accepted: 02/27/2024] [Indexed: 03/05/2024]
Abstract
To realize the maximum therapeutic activity of medicine and protect the body from the adverse effects of active ingredients, drug delivery systems (DDS) featured with targeted transportation sites and controllable release have captured extensive attention over the past decades. Hydrogels with unique three-dimensional (3D) porous structures present tunable capacity, controllable degradation, various stimuli sensitivity, therapeutic agents encapsulation, and loaded drugs protection properties, which endow hydrogels with bred-in-the-bone advantages as vehicles for drug delivery. In recent years, with the impressive consciousness of the "back-to-nature" concept, biomass materials are becoming the 'rising star' as the hydrogels building blocks for controlled drug release carriers due to their biodegradability, biocompatibility, and non-toxicity properties. In particular, cellulose and its derivatives are promising candidates for fabricating hydrogels as their rich sources and high availability, and various smart cellulose-based hydrogels as targeted carriers under exogenous such as light, electric field, and magnetic field or endogenous such as pH, temperature, ionic strength, and redox gradients. In this review, we summarized the main synthetic strategies of smart cellulose-based hydrogels including physical and chemical cross-linking, and illustrated the detailed intelligent-responsive mechanism of hydrogels in DDS under external stimulus. Additionally, the ongoing development and challenges of cellulose-based hydrogels in the biomedical field are also presented.
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Affiliation(s)
- Jingwei Gong
- Department of Chemical Engineering, Faculty of Engineering, University of Malaya, Kuala Lumpur 50603, Malaysia
| | - Leilei Hou
- Department of Catalytic Chemistry and Engineering, State key-laboratory of fine chemicals, Dalian University of Technology, Dalian 116034, People's Republic of China
| | - Yern Chee Ching
- Department of Chemical Engineering, Faculty of Engineering, University of Malaya, Kuala Lumpur 50603, Malaysia.
| | - Kuan Yong Ching
- University of Reading Malaysia, Kota Ilmu, Persiaran Graduan, Educity, 79200 Nusajaya, Johor, Malaysia
| | - Nguyen Dai Hai
- Institute of Chemical Technology, Vietnam Academy of Science and Technology, Department of Biomaterials & Bioengineering, Ho Chi Minh City, Viet Nam
| | - Cheng Hock Chuah
- Department of Chemistry, Faculty of Science, University of Malaya, Kuala Lumpur 50603, Malaysia
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3
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Yang E, Dong H, Khongkomolsakul W, Dadmohammadi Y, Abbaspourrad A. Improving the thermal stability of phytase using core-shell hydrogel beads. Food Chem X 2024; 21:101082. [PMID: 38162037 PMCID: PMC10753051 DOI: 10.1016/j.fochx.2023.101082] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2023] [Revised: 12/12/2023] [Accepted: 12/15/2023] [Indexed: 01/03/2024] Open
Abstract
A core-shell hydrogel bead system was designed to maintain the catalytic activity of phytase and protect its enzymatic functionality from heat treatment. The designed structure consists of a chitosan-phytase complex core and an alginate-carrageenan hydrogel shell. The core-shell hydrogel was optimized to improve phytase encapsulation efficiency and increase the thermal stability of the encapsulated phytase. After heat treatment, encapsulated phytase retained ∼ 70 % of its catalytic activity and the same secondary structure of free phytase. Fourier transform infrared spectroscopy indicated strong intermolecular interactions between chitosan and phytase in the core, but little interaction between the core and the alginate and κ-carrageenan shell, this supports the structural and functional stability of the phytase. Differential scanning calorimetry confirmed that the designed core-shell structure had a higher melting point. Encapsulating phytase in a core-shell hydrogel bead can enhance the thermal stability of phytase, which broadens the potential applications for phytase delivery.
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Affiliation(s)
- Eunhye Yang
- Department of Food Science, College of Agriculture & Life Sciences, Cornell University, Stocking Hall, Ithaca, NY 14853, United States
| | - Hongmin Dong
- Department of Food Science, College of Agriculture & Life Sciences, Cornell University, Stocking Hall, Ithaca, NY 14853, United States
| | - Waritsara Khongkomolsakul
- Department of Food Science, College of Agriculture & Life Sciences, Cornell University, Stocking Hall, Ithaca, NY 14853, United States
| | - Younas Dadmohammadi
- Department of Food Science, College of Agriculture & Life Sciences, Cornell University, Stocking Hall, Ithaca, NY 14853, United States
| | - Alireza Abbaspourrad
- Department of Food Science, College of Agriculture & Life Sciences, Cornell University, Stocking Hall, Ithaca, NY 14853, United States
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4
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Wang N, Wang B, Wan Y, Gao B, Rajput VD. Alginate-based composites as novel soil conditioners for sustainable applications in agriculture: A critical review. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2023; 348:119133. [PMID: 37839201 PMCID: PMC11057947 DOI: 10.1016/j.jenvman.2023.119133] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/15/2023] [Revised: 07/13/2023] [Accepted: 08/30/2023] [Indexed: 10/17/2023]
Abstract
The development of alginate-based composites in agriculture to combat nutrient loss and drought for sustainable development has drawn increasing attention in the scientific community. Existing studies are however scattered, and the retention and slow-release mechanisms of alginate-based composites are not well understood. This paper systematically reviews the current literature on the preparation, characterization, and agricultural applications of various alginate-based composites. The synthesis methods of alginate-based composites are firstly summarized, followed by a review of available analytical techniques to characterize alginate-based composites for the attainment of their desired performance. Secondly, the performance and controlling factors for agricultural applications of alginate-based composites are discussed, including aquasorb, slow-release fertilizer, soil amendment, microbial inoculants, and controlled release of pesticides for pest management. Finally, suggestions and future perspectives are proposed to expand the applications of alginate-based composites for sustainable agriculture.
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Affiliation(s)
- Nana Wang
- Key Laboratory of Karst Georesources and Environment (Guizhou University), Ministry of Education, Guiyang, Guizhou, 550025, China
| | - Bing Wang
- Key Laboratory of Karst Georesources and Environment (Guizhou University), Ministry of Education, Guiyang, Guizhou, 550025, China; College of Resources and Environmental Engineering, Guizhou University, Guiyang, Guizhou, 550025, China.
| | - Yongshan Wan
- Center for Environmental Measurement and Modeling, US EPA, Gulf Breeze, FL, USA
| | - Bin Gao
- Department of Civil and Environmental Engineering, Rensselaer Polytechnic Institute, Troy, NY 12180, USA
| | - Vishnu D Rajput
- Academy of Biology and Biotechnology, Southern Federal University, Rostov-on-Don, 344006, Russia
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5
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Li Z, Zhang M. Progress in the Preparation of Stimulus-Responsive Cellulose Hydrogels and Their Application in Slow-Release Fertilizers. Polymers (Basel) 2023; 15:3643. [PMID: 37688270 PMCID: PMC10490241 DOI: 10.3390/polym15173643] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2023] [Revised: 08/28/2023] [Accepted: 08/29/2023] [Indexed: 09/10/2023] Open
Abstract
Agriculture is facing challenges such as water scarcity, low fertilizer utilization, food security and environmental sustainability. Therefore, the development of slow-release fertilizer (SRF) with controlled water retention and release is particularly important. Slow-release fertilizer hydrogel (SRFH) has a three-dimensional (3D) network structure combined with fertilizer processing, displaying excellent hydrophilicity, biocompatibility and controllability. Cellulose has abundant hydroxyl groups as well as outstanding biodegradability and special mechanical properties, which make it a potential candidate material for the fabrication of hydrogels. This work would analyze and discuss various methods for preparing stimulus-responsive cellulose hydrogels and their combinations with different fertilizers. Moreover, the application and release mechanism of stimulus-responsive cellulose hydrogels in SRF have been summarized as well. Finally, we would explore the potential issues of stimulus-responsive cellulose hydrogels serving as an SRF, propose reasonable solutions and give an outlook of the future research directions.
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Affiliation(s)
- Zhenghui Li
- School of Material Science and Engineering, Beihua University, Jilin City 132013, China;
| | - Ming Zhang
- School of Material Science and Engineering, Beihua University, Jilin City 132013, China;
- Key Laboratory of Wooden Materials Science and Engineering of Jilin Province, Beihua University, Jilin City 132013, China
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6
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Fan X, Zhang L, Dong F, Liu H, Xu X. Room-temperature self-healing polyurethane-cellulose nanocrystal composites with strong strength and toughness based on dynamic bonds. Carbohydr Polym 2023; 308:120654. [PMID: 36813344 DOI: 10.1016/j.carbpol.2023.120654] [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: 11/22/2022] [Revised: 01/26/2023] [Accepted: 01/31/2023] [Indexed: 02/05/2023]
Abstract
Self-healing materials suffer from a trade-off relationship between their self-healing ability and mechanical strength, which limits their applications. Therefore, we developed a room-temperature self-healing supramolecular composite based on polyurethane (PU) elastomer, cellulose nanocrystals (CNCs), and multiple dynamic bonds. In this system, the abundant hydroxyl groups on the surfaces of the CNCs form multiple hydrogen bonds with the PU elastomer, yielding a dynamic physical cross-linking network. This dynamic network enables self-healing without degrading the mechanical properties. As a result, the obtained supramolecular composites exhibited high tensile strength (24.5 ± 2.3 MPa), good elongation at break (1484.8 ± 74.9 %), favourable toughness (156.4 ± 31.1 MJ m-3, which is equivalent to that of spider silk and 5.1-times higher than that of aluminium), and excellent self-healing efficiency (95 ± 1.9 %). Notably, the mechanical properties of the supramolecular composites were almost completely retained after reprocessing three times. Further, using these composites, flexible electronic sensors were prepared and tested. In summary, we have reported a method for preparing supramolecular materials having high toughness and room temperature self-healing ability that have applications in flexible electronics.
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Affiliation(s)
- Xu Fan
- Institute of Chemical Industry of Forestry Products, Chinese Academy of Forestry, Key Laboratory of Biomass Energy and Material, National Engineering Laboratory for Biomass Chemical Utilization, Key and Open Laboratory of Forest Chemical Engineering, State Forestry Administration, Nanjing 210042, Jiangsu Province, China; College of Chemical Engineering, Nanjing Forestry University, Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, Jiangsu Provincial Key Lab for the Chemistry and Utilization of Agro-forest Biomass, Nanjing 210037, Jiangsu Province, China
| | - Lei Zhang
- Institute of Chemical Industry of Forestry Products, Chinese Academy of Forestry, Key Laboratory of Biomass Energy and Material, National Engineering Laboratory for Biomass Chemical Utilization, Key and Open Laboratory of Forest Chemical Engineering, State Forestry Administration, Nanjing 210042, Jiangsu Province, China
| | - Fuhao Dong
- Institute of Chemical Industry of Forestry Products, Chinese Academy of Forestry, Key Laboratory of Biomass Energy and Material, National Engineering Laboratory for Biomass Chemical Utilization, Key and Open Laboratory of Forest Chemical Engineering, State Forestry Administration, Nanjing 210042, Jiangsu Province, China.
| | - He Liu
- Institute of Chemical Industry of Forestry Products, Chinese Academy of Forestry, Key Laboratory of Biomass Energy and Material, National Engineering Laboratory for Biomass Chemical Utilization, Key and Open Laboratory of Forest Chemical Engineering, State Forestry Administration, Nanjing 210042, Jiangsu Province, China
| | - Xu Xu
- College of Chemical Engineering, Nanjing Forestry University, Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, Jiangsu Provincial Key Lab for the Chemistry and Utilization of Agro-forest Biomass, Nanjing 210037, Jiangsu Province, China
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7
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Liu A, Wu H, Naeem A, Du Q, Ni B, Liu H, Li Z, Ming L. Cellulose nanocrystalline from biomass wastes: An overview of extraction, functionalization and applications in drug delivery. Int J Biol Macromol 2023; 241:124557. [PMID: 37094644 DOI: 10.1016/j.ijbiomac.2023.124557] [Citation(s) in RCA: 9] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2023] [Revised: 04/08/2023] [Accepted: 04/18/2023] [Indexed: 04/26/2023]
Abstract
Cellulose nanocrystals (CNC) have been extensively used in various fields due to their renewability, excellent biocompatibility, large specific surface area, and high tensile strength. Most biomass wastes contain significant amounts of cellulose, which forms the basis of CNC. Biomass wastes are generally made up of agricultural waste, and forest residues, etc. CNC can be produced from biomass wastes by removing the non-cellulosic components through acid hydrolysis, enzymatic hydrolysis, oxidation hydrolysis, and other mechanical methods. However, biomass wastes are generally disposed of or burned in a random manner, resulting in adverse environmental consequences. Hence, using biomass wastes to develop CNC-based carrier materials is an effective strategy to promote the high value-added application of biomass wastes. This review summarizes the advantages of CNC applications, the extraction process, and recent advances in CNC-based composites, such as aerogels, hydrogels, films, and metal complexes. Furthermore, the drug release characteristics of CNC-based material are discussed in detail. Additionally, we discuss some gaps in our understanding of the current state of knowledge and potential future directions of CNC-based materials.
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Affiliation(s)
- Ao Liu
- Institute for Advanced Study, Key Laboratory of Modern Preparation of TCM, Ministry of Education, Research Center for Differentiation and Department of TCM Basic Theory, Jiangxi University of Chinese Medicine, Jiangxi, Nanchang 330004, China
| | - Hailian Wu
- Institute for Advanced Study, Key Laboratory of Modern Preparation of TCM, Ministry of Education, Research Center for Differentiation and Department of TCM Basic Theory, Jiangxi University of Chinese Medicine, Jiangxi, Nanchang 330004, China
| | - Abid Naeem
- Institute for Advanced Study, Key Laboratory of Modern Preparation of TCM, Ministry of Education, Research Center for Differentiation and Department of TCM Basic Theory, Jiangxi University of Chinese Medicine, Jiangxi, Nanchang 330004, China
| | - Qing Du
- Institute for Advanced Study, Key Laboratory of Modern Preparation of TCM, Ministry of Education, Research Center for Differentiation and Department of TCM Basic Theory, Jiangxi University of Chinese Medicine, Jiangxi, Nanchang 330004, China
| | - Bin Ni
- First Affiliated Hospital of Gannan Medical University, Jiangxi, Ganzhou 341000, China
| | - Hongning Liu
- Institute for Advanced Study, Key Laboratory of Modern Preparation of TCM, Ministry of Education, Research Center for Differentiation and Department of TCM Basic Theory, Jiangxi University of Chinese Medicine, Jiangxi, Nanchang 330004, China
| | - Zhe Li
- Institute for Advanced Study, Key Laboratory of Modern Preparation of TCM, Ministry of Education, Research Center for Differentiation and Department of TCM Basic Theory, Jiangxi University of Chinese Medicine, Jiangxi, Nanchang 330004, China.
| | - Liangshan Ming
- Institute for Advanced Study, Key Laboratory of Modern Preparation of TCM, Ministry of Education, Research Center for Differentiation and Department of TCM Basic Theory, Jiangxi University of Chinese Medicine, Jiangxi, Nanchang 330004, China.
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8
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Chakraborty R, Mukhopadhyay A, Paul S, Sarkar S, Mukhopadhyay R. Nanocomposite-based smart fertilizers: A boon to agricultural and environmental sustainability. THE SCIENCE OF THE TOTAL ENVIRONMENT 2023; 863:160859. [PMID: 36526196 DOI: 10.1016/j.scitotenv.2022.160859] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/22/2022] [Revised: 11/08/2022] [Accepted: 12/07/2022] [Indexed: 06/17/2023]
Abstract
Fertilizers are indispensable agri-inputs to accomplish the growing food demand. The injudicious use of conventional fertilizer products has resulted in several environmental and human health complications. To mitigate these problems, nanocomposite-based fertilizers are viable alternative options. Nanocomposites, a novel class of materials having improved mechanical strength, barrier properties, and mechanical and thermal stability, are suitable candidates to develop eco-friendly slow/controlled release fertilizer formulations. In this review, the use of different nanocomposite materials developed for nutrient management in agriculture has been summarized with a major focus on their synthesis and characterization techniques, and application aspects in plant nutrition, along with addressing constraints and future opportunities of this domain. Further detailed studies on nanocomposite-based fertilizers are required to evaluate the cost-effective synthesis methods, in-depth field efficacy, environmental fate, stability, etc. before commercialization in the field of agriculture. The present review is expected to help the policy makers and all the stakeholders in the large-scale commercialization and application of nanocomposite-based smart fertilizer products with greater societal acceptance and environmental sustainability in near future.
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Affiliation(s)
- Ranabir Chakraborty
- Division of Soil Science and Agricultural Chemistry, ICAR-Indian Agricultural Research Institute, New Delhi 110012, India
| | - Arkadeb Mukhopadhyay
- Division of Agricultural Chemicals, ICAR-Indian Agricultural Research Institute, New Delhi 110012, India
| | - Subhadip Paul
- Division of Soil Science and Agricultural Chemistry, ICAR-Indian Agricultural Research Institute, New Delhi 110012, India
| | - Subhasis Sarkar
- Division of Agricultural Chemicals, ICAR-Indian Agricultural Research Institute, New Delhi 110012, India
| | - Raj Mukhopadhyay
- Division of Irrigation and Drainage Engineering, ICAR-Central Soil Salinity Research Institute, Karnal 132001, Haryana, India.
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Sun H, Lei T, Guo X, Liu J, Lv J. Evaluation of Physicochemical Properties of Sustained-Release Membranes Based on Analytic Hierarchy. MEMBRANES 2023; 13:313. [PMID: 36984701 PMCID: PMC10056938 DOI: 10.3390/membranes13030313] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 01/26/2023] [Revised: 02/28/2023] [Accepted: 03/07/2023] [Indexed: 06/18/2023]
Abstract
In this paper, the optimal analytic hierarchy process was used to establish a comprehensive evaluation model for the physicochemical properties of composite sustained-release membrane materials based on water absorption (XS), water permeability (TS), tensile strength (KL), elongation at break (DSL), fertilizer permeability (TF), and viscosity (ND), and the optimal ratio parameters of membrane material were determined. Analytic hierarchy process (AHP) combined with correlation analysis was used to construct the judgment matrix of physicochemical properties, which passed the consistency test, and to determine the weight and ranking of each index: TF (0.6144) > XS (0.1773) > KL (0.1561) > ND (0.1311) > TS (0.0775) > DSL (0.0520). The comprehensive scores of sustained-release membrane materials under different treatments were calculated based on normalized data samples and weights. It was determined that the percentage of each component in the best comprehensive performance of the slow-release membrane material was as follows: polyvinyl alcohol, polyvinylpyrrolidone, zeolite, and epoxy resin were 7.3%, 0.7%, 0.5%, and 2%, respectively.
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Affiliation(s)
- Haonan Sun
- College of Water Resource Science and Engineering, Taiyuan University of Technology, Taiyuan 030024, China
| | - Tao Lei
- College of Water Resource Science and Engineering, Taiyuan University of Technology, Taiyuan 030024, China
| | - Xianghong Guo
- College of Water Resource Science and Engineering, Taiyuan University of Technology, Taiyuan 030024, China
| | - Jianxin Liu
- College of Chemical Engineering and Technology, Taiyuan University of Technology, Taiyuan 030024, China
| | - Jiangjian Lv
- College of Water Resource Science and Engineering, Taiyuan University of Technology, Taiyuan 030024, China
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10
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Zheng L, Seidi F, Wu W, Pan Y, Xiao H. Dual-functional lignin-based hydrogels for sustained release of agrochemicals and heavy metal ion complexation. Int J Biol Macromol 2023; 235:123701. [PMID: 36801277 DOI: 10.1016/j.ijbiomac.2023.123701] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2022] [Revised: 02/03/2023] [Accepted: 02/11/2023] [Indexed: 02/18/2023]
Abstract
An effective way of improving the efficiency of agrochemicals and improving crop yield and quality is by slow or sustained release, which is conducive to environmental protection. Meanwhile, the excessive amount of heavy metal ions in soil can create toxicity in plants. Here, we prepared lignin-based dual-functional hydrogels containing conjugated agrochemical and heavy metal ligands through free-radical copolymerization. The content of the agrochemicals (including plant growth regulator 3-indoleacetic acid (IAC) and herbicide 2,4-dichlorophenoxyacetic acid (DCP)) in the hydrogels were tuned by changing the hydrogel composition. The conjugated agrochemicals could slowly release through the gradual cleavage of the ester bond. As a result of the release of the DCP herbicide, the growth of lettuce was effectively regulated, thus confirming the feasibility and effectiveness of this system in application. At the same time, due to the presence of metal chelating groups (such as COOH, phenolic OH, and tertiary amine) the hydrogels could act as adsorbents or stabilizers towards heavy metal ions for improving the soil remediation and preventing the adsorption of these toxic metals by plant roots. Specifically, Cu(II) and Pb(II) could be adsorbed >380 and 60 mg/g, respectively.
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Affiliation(s)
- Ling Zheng
- Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources and International Innovation Center for Forest Chemicals and Materials, Nanjing Forestry University, Nanjing 210037, China
| | - Farzad Seidi
- Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources and International Innovation Center for Forest Chemicals and Materials, Nanjing Forestry University, Nanjing 210037, China.
| | - Weibing Wu
- Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources and International Innovation Center for Forest Chemicals and Materials, Nanjing Forestry University, Nanjing 210037, China
| | - Yuanfeng Pan
- Guangxi Colleges and Universities Key Laboratory of New Chemical Application Technology in Resources, School of Chemistry and Chemical Engineering, Guangxi University, Nanning 530004, China
| | - Huining Xiao
- Department of Chemical Engineering, University of New Brunswick, Fredericton, NB E3B 5 A3, Canada.
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11
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Teshnizi FA, Ghobadinia M, Abbasi F, Hallett PD, Sepehrnia N. Biochar and flow interruption control spatio-temporal dynamics of fecal coliform retention under subsurface drip irrigation. JOURNAL OF CONTAMINANT HYDROLOGY 2023; 253:104128. [PMID: 36603302 DOI: 10.1016/j.jconhyd.2022.104128] [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: 06/01/2022] [Revised: 12/14/2022] [Accepted: 12/27/2022] [Indexed: 06/17/2023]
Abstract
Applying wastewater in subsurface drip irrigation helps address water shortage in arid and semi-arid environments. Microbial contamination may result, but soil amendments such as biochar could help protect soil and water resources. To improve understanding, this study investigated spatio-temporal dynamics of fecal coliform retention in a biochar-treated soil under subsurface drip irrigation. Two dripper discharges rates of 2 and 4 l hr-1 containing fecal coliforms (3.99 ± 1.4 × 105 CFU ml-1), three maximum allowable depletion levels (MAD; 30, 50, and 70%), and three biochar levels (0, 0.5 and 1%, w/w) were used. The lysimeters were filled with biochar-treated soil and had drippers located at 20 cm depth. Three irrigations were performed for either Q, and soil samples were taken after each irrigation at different times at the lysimeter centre at 5, 15, 25, and 50 cm depths and at the edge at 20 cm depth (labeled 20 L). Soils containing biochar had much greater recovered coliforms from soil than the unamended controls. The greatest retention was at 15 and 25 cm depth (within 5 cm of the dripper) for 1% biochar, with the recovered cells about 70% for 2 l hr-1 discharge and 60% for 4 l hr-1 discharge. The greatest concentration occurred immediately after irrigation, but over 10 days the number of coliforms gradually decreased and inactivated. Therefore, the coliform residence time, soil depth, and biochar rate all influenced coliform retention if the discharge rates and MADs were considered. We recommend slower subsurface dripper rates with high MAD and biochar amendment to minimize fecal coliform contamination from subsurface field wastewater irrigation.
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Affiliation(s)
- Forough Abbasi Teshnizi
- Department of Water Engineering, Faculty of Agriculture, Shahrekord University, Shahrekord, Iran.
| | - Mahdi Ghobadinia
- Department of Water Engineering, Faculty of Agriculture, Shahrekord University, Shahrekord, Iran
| | - Fariborz Abbasi
- Agricultural Engineering Research Institute (AERI), Agricultural Research, Education and Extension Organization (AREEO), Karaj, Iran
| | - Paul D Hallett
- School of Biological Sciences, Cruickshank Building, St Machar Drive Aberdeen, AB24 3UU, Scotland, United Kingdom
| | - Nasrollah Sepehrnia
- School of Biological Sciences, Cruickshank Building, St Machar Drive Aberdeen, AB24 3UU, Scotland, United Kingdom.
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12
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Abbasi Moud A. Advanced cellulose nanocrystals (CNC) and cellulose nanofibrils (CNF) aerogels: Bottom-up assembly perspective for production of adsorbents. Int J Biol Macromol 2022; 222:1-29. [PMID: 36156339 DOI: 10.1016/j.ijbiomac.2022.09.148] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2022] [Revised: 09/04/2022] [Accepted: 09/16/2022] [Indexed: 12/25/2022]
Abstract
The most common and abundant polymer in nature is the linear polysaccharide cellulose, but processing it requires a new approach since cellulose degrades before melting and does not dissolve in ordinary organic solvents. Cellulose aerogels are exceptionally porous (>90 %), have a high specific surface area, and have low bulk density (0.0085 mg/cm3), making them suitable for a variety of sophisticated applications including but not limited to adsorbents. The production of materials with different qualities from the nanocellulose based aerogels is possible thanks to the ease with which other chemicals may be included into the structure of nanocellulose based aerogels; despite processing challenges, cellulose can nevertheless be formed into useful, value-added products using a variety of traditional and cutting-edge techniques. To improve the adsorption of these aerogels, rheology, 3-D printing, surface modification, employment of metal organic frameworks, freezing temperature, and freeze casting techniques were all investigated and included. In addition to exploring venues for creation of aerogels, their integration with CNC liquid crystal formation were also explored and examined to pursue "smart adsorbent aerogels". The objective of this endeavour is to provide a concise and in-depth evaluation of recent findings about the conception and understanding of nanocellulose aerogel employing a variety of technologies and examination of intricacies involved in enhancing adsorption properties of these aerogels.
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Affiliation(s)
- Aref Abbasi Moud
- Department of Chemical and Biological Engineering, The University of British Columbia, Vancouver, British Columbia V6T 1Z3, Canada.
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