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Kalita A, Elayarajan M, Janaki P, Suganya S, Sankari A, Parameswari E. Organo-monomers coated slow-release fertilizers: Current understanding and future prospects. Int J Biol Macromol 2024; 274:133320. [PMID: 38950798 DOI: 10.1016/j.ijbiomac.2024.133320] [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: 03/02/2024] [Revised: 06/06/2024] [Accepted: 06/19/2024] [Indexed: 07/03/2024]
Abstract
The increasing urge to make an impactful contribution towards attaining nutritional security amidst the ever-rising demand for food, changing climate and maintaining environmental health and safety has become the main focal point for today's researchers globally. Slow-release fertilizers (SRFs) are a broad, dynamic, and advance category of fertilizers but despite its environmental benefits and scientifically proven results it often faces some critical challenges, primarily due to its high cost, often stemming from synthetic coatings, deteriorating soil health and with unrevealed potential environmental impacts. Organo-monomers have gained immense popularity due to their organic origin, biodegradable nature, biocompatibility, bio-sustainability and as a targeted delivery of nutrients in the plant system leading to increase in nutrient use efficiency (NUE). They can form strong bond with other monomers, fertilizers elements and improve the soil quality, carbon sequestration and holistically the environment. This review emphasizes on organo-monomers based SRFs, its synthesis, application and deliberate mechanism of nutrient release; boosting crop productivity and global economy. In conclusion, provided the significant challenges posed by the classical or synthetically coated fertilizers; the application of organo-monomers based SRFs demonstrates immense potential for achieving sustainable yield, to help build a global nutritionally secure population.
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Affiliation(s)
- Abreeta Kalita
- Dept. of Soil Science & Agricultural Chemistry, Tamil Nadu Agricultural University, Coimbatore, Tamil Nadu 641003, India.
| | - M Elayarajan
- Dept. of Soil Science & Agricultural Chemistry, Tamil Nadu Agricultural University, Coimbatore, Tamil Nadu 641003, India.
| | - P Janaki
- Dept. of Soil Science & Agricultural Chemistry, Tamil Nadu Agricultural University, Coimbatore, Tamil Nadu 641003, India.
| | - S Suganya
- Dept. of Soil Science & Agricultural Chemistry, Tamil Nadu Agricultural University, Coimbatore, Tamil Nadu 641003, India.
| | - A Sankari
- Dept. of Horticulture, Tamil Nadu Agricultural University, Coimbatore, Tamil Nadu 641003, India.
| | - E Parameswari
- Dept. of Environmental Science, Tamil Nadu Agricultural University, Coimbatore, Tamil Nadu 641003, India.
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2
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Sultan M, Taha G. Sustained-release nitrogen fertilizer delivery systems based on carboxymethyl cellulose-grafted polyacrylamide: Swelling and release kinetics. Int J Biol Macromol 2024; 266:131184. [PMID: 38554925 DOI: 10.1016/j.ijbiomac.2024.131184] [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: 10/20/2023] [Revised: 03/18/2024] [Accepted: 03/26/2024] [Indexed: 04/02/2024]
Abstract
Sustained or controlled-release delivery systems can enhance functions such as nutrient usage; minimize soil contamination, and reduce the required fertilizer dose. This paper reports the development of a carboxymethyl cellulose-g-polyacrylamide copolymer (CMC-g-PAM) as a sustained and slow-release fertilizer carrier for urea. The developed copolymer was characterized by Fourier-transform infrared spectroscopy (FTIR), X-ray diffraction (XRD), Scanning Electron Microscopy (SEM), and thermo gravimetric analysis (TG). The grafting process increased the activation energy of CMC from 0.1521 to 0.5952 J/mol with a higher loading percentage of 72.140.85% using a 15% urea solution. The swelling ratio is significantly dependent on the pH. The maximum swelling ratio of 1199.58% at pH 9. However, Swelling follows a pseudo-first-order reaction with the maximum swelling ratio in a saline of 349.76%. The CMC-g-PAM copolymer loaded with urea exhibited sustained and slow release, with the maximum cumulative percentage of 69.12% at pH 9 and 38.94% in saline. Urea release from the CMC-g-PAM copolymer followed the first-order, Fickian, and biexponential biphasic release mechanisms. The release of the CMC-g-PAM copolymer loaded with urea is a complicated process governed by diffusion and a biphasic releasing profile.
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Affiliation(s)
- Maha Sultan
- Packaging Materials Department, National Research Centre, 33 El Bohouth St. (former El Tahrir St.), Dokki, Giza, Egypt.
| | - Ghada Taha
- Pre-treatment and Finishing of Cellulose-based Textiles, National Research Centre, 33 El Bohouth St. (former El Tahrir St.), Dokki, Giza, Egypt.
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3
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Lipatova IM, Losev NV. The influence of the combined impact of shear stress and cavitation on the structure and properties of starch-natural rubber composite. Carbohydr Polym 2024; 330:121852. [PMID: 38368078 DOI: 10.1016/j.carbpol.2024.121852] [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: 11/13/2023] [Revised: 12/27/2023] [Accepted: 01/19/2024] [Indexed: 02/19/2024]
Abstract
In this article, we examined a high-performance, environmentally friendly method for producing composite films based on starch and natural rubber latex (NR). To increase the compatibility of the components, the casting dispersions were subjected to short-term (10 s) mechanical activation in a rotor-stator device. Using the rotational viscosimetry method, it was found that mechanical activation reduces the structuring degree and the effective viscosity of the casting dispersions. The composite films with the NR content of 0-30 % were characterized using optical and SEM microscopy, X-ray diffraction, tensile, and moisture resistance testing data. When the NR content increases from 0 to 30 %, the elongation at break increased by 570 % and 950 % for films obtained using mechanical activation and without it, respectively. The extremely high increase in film tensile strength (on average by 155 %) and the decrease in the NR extractability with toluene due to the use of mechanical activation indicate the possibility of mechanically induced formation of an in situ copolymer at the starch-NR interface. The developed method can be recommended for large-scale production of composite starch-based materials.
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Affiliation(s)
- I M Lipatova
- G.A. Krestov Institute of Solution Chemistry of the Russian Academy of Sciences, 1 Akademicheskaya St., Ivanovo 153045, Russia.
| | - N V Losev
- G.A. Krestov Institute of Solution Chemistry of the Russian Academy of Sciences, 1 Akademicheskaya St., Ivanovo 153045, Russia
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Shanmugavel D, Rusyn I, Solorza-Feria O, Kamaraj SK. Sustainable SMART fertilizers in agriculture systems: A review on fundamentals to in-field applications. THE SCIENCE OF THE TOTAL ENVIRONMENT 2023; 904:166729. [PMID: 37678530 DOI: 10.1016/j.scitotenv.2023.166729] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/08/2023] [Revised: 08/25/2023] [Accepted: 08/29/2023] [Indexed: 09/09/2023]
Abstract
Agriculture will face the issue of ensuring food security for a growing global population without compromising environmental security as demand for the world's food systems increases in the next decades. To provide enough food and reduce the harmful effects of chemical fertilization and improper disposal or reusing of agricultural wastes on the environment, will be required to apply current technologies in agroecosystems. Combining biotechnology and nanotechnology has the potential to transform agricultural practices and offer answers to both immediate and long-term issues. This review study seeks to identify, categorize, and characterize the so-called smart fertilizers as the future frontier of sustainable agriculture. The conventional fertilizer and smart fertilizers in general are covered in the first section of this review. Another key barrier preventing the widespread use of smart fertilizers in agriculture is the high cost of materials. Nevertheless, smart fertilizers are widely represented on the world market and are actively used in farms that have already switched to sustainable technologies. The advantages and disadvantages of various raw materials used to create smart fertilizers, with a focus on inorganic and organic materials, synthetic and natural polymers, along with their physical and chemical preparation processes, are contrasted in the following sections. The rate and the mechanism of release are covered. The purpose of this study is to provide a deep understanding of the advancements in smart fertilizers during the last ten years. Trends are also recognized and studied to provide insight for upcoming agricultural research projects.
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Affiliation(s)
- Divya Shanmugavel
- Programa de Nanociencias y Nanotecnología, CINVESTAV - IPN, Hydrogen and Fuel Cells Group, A. Postal 14-760, 07360 CDMX, Mexico
| | - Iryna Rusyn
- Department of Ecology and Sustainable Environmental Management, Viacheslav Chornovil Institute of Sustainable Development, Lviv Polytechnic National University, Stepan Bandera St., 12, Lviv, 79013, Ukraine
| | - Omar Solorza-Feria
- Department of Chemistry, CINVESTAV - IPN, Hydrogen, and Fuel Cells Group, A. Postal 14-760, 07360 CDMX, Mexico.
| | - Sathish-Kumar Kamaraj
- Instituto Politécnico Nacional (IPN)-Centro de Investigación en Ciencia Aplicada y Tecnología Avanzada, Unidad Altamira (CICATA-Altamira), Carretera Tampico-Puerto Industrial Altamira Km 14.5, C. Manzano, Industrial Altamira, 89600 Altamira, Tamps., Mexico.
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5
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Salimi M, Channab BE, El Idrissi A, Zahouily M, Motamedi E. A comprehensive review on starch: Structure, modification, and applications in slow/controlled-release fertilizers in agriculture. Carbohydr Polym 2023; 322:121326. [PMID: 37839830 DOI: 10.1016/j.carbpol.2023.121326] [Citation(s) in RCA: 15] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2023] [Revised: 08/20/2023] [Accepted: 08/21/2023] [Indexed: 10/17/2023]
Abstract
This comprehensive review thoroughly examines starch's structure, modifications, and applications in slow/controlled-release fertilizers (SRFs) for agricultural purposes. The review begins by exploring starch's unique structure and properties, providing insights into its molecular arrangement and physicochemical characteristics. Various methods of modifying starch, including physical, chemical, and enzymatic techniques, are discussed, highlighting their ability to impart desirable properties such as controlled release and improved stability. The review then focuses on the applications of starch in the development of SRFs. It emphasizes the role of starch-based hydrogels as effective nutrient carriers, enabling their sustained release to plants over extended periods. Additionally, incorporating starch-based hydrogel nano-composites are explored, highlighting their potential in optimizing nutrient release profiles and promoting plant growth. Furthermore, the review highlights the benefits of starch-based fertilizers in enhancing plant growth and crop yield while minimizing nutrient losses. It presents case studies and field trials demonstrating starch-based formulations' efficacy in promoting sustainable agricultural practices. Overall, this review consolidates current knowledge on starch, its modifications, and its applications in SRFs, providing valuable insights into the potential of starch-based formulations to improve nutrient management, boost crop productivity, and support sustainable agriculture.
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Affiliation(s)
- Mehri Salimi
- Soil Science Department, College of Agriculture and Natural Resources, University of Tehran, Karaj, Iran
| | - Badr-Eddine Channab
- Laboratory of Materials, Catalysis & Natural Resources Valorization, URAC 24, Faculty of Science and Technology, Hassan II University, Casablanca, B.P. 146, Morocco
| | - Ayoub El Idrissi
- Laboratory of Materials, Catalysis & Natural Resources Valorization, URAC 24, Faculty of Science and Technology, Hassan II University, Casablanca, B.P. 146, Morocco
| | - Mohamed Zahouily
- Laboratory of Materials, Catalysis & Natural Resources Valorization, URAC 24, Faculty of Science and Technology, Hassan II University, Casablanca, B.P. 146, Morocco; Natural Resources Valorization Center, Moroccan Foundation for Advanced Science, Innovation and Research, Rabat, Morocco; Mohammed VI Polytechnic University, Ben Guerir, Morocco
| | - Elaheh Motamedi
- Department of Nanotechnology, Agricultural Biotechnology Research Institute of Iran (ABRII), Agricultural Research Education and Extension Organization (AREEO), Karaj, Iran.
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6
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Swami K, Sahu BK, Nagargade M, Kaur K, Pathak AD, Shukla SK, Stobdan T, Shanmugam V. Starch wall of urea: Facile starch modification to residue-free stable urea coating for sustained release and crop productivity. Carbohydr Polym 2023; 317:121042. [PMID: 37364943 DOI: 10.1016/j.carbpol.2023.121042] [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: 01/31/2023] [Revised: 05/15/2023] [Accepted: 05/19/2023] [Indexed: 06/28/2023]
Abstract
Quick leaching of urea fertilizer encourages different coatings, but achieving a stable coating without toxic linkers is still challenging. Here, the naturally abundant bio-polymer, i.e., starch, has been groomed to form a stable coating through phosphate modification and the support of eggshell nanoparticles (ESN) as a reinforcement agent. The ESN offers a calcium ion binding site for the phosphate to cause bio-mimetic folding. This coating retains hydrophilic ends in the core and gives an excellent hydrophobic surface (water contact angle 123°). Further, the phosphorylated starch+ESN led the coating to release only ∼30 % of the nutrient in the initial ten days and sustained for up to 60 days to show ∼90 % release. The stability of the coating has been attributed to its resistance to major soil factors viz., acidity and amylase degradation. The ESN also increases elasticity, cracking control, and self-repairing capacity by serving as buffer micro-bots. The coated urea enhanced the yield of rice grain by ∼10%.
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Affiliation(s)
- Kanchan Swami
- Institute of Nanoscience and Technology, Mohali, Punjab 140306, India
| | | | - Mona Nagargade
- Indian Institute of Sugarcane Research, Lucknow 226002, India
| | - Kamaljit Kaur
- Institute of Nanoscience and Technology, Mohali, Punjab 140306, India; University Centre for Research and Development, Chandigarh University, Mohali 140413, Punjab, India
| | | | | | - Tsering Stobdan
- Defence Institute of High Altitude Research, Leh, Ladakh 194101, India
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7
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Shang M, Jiang H, Li J, Ji N, Li M, Dai L, He J, Qin Y. A dual physical crosslinking starch-based hydrogel exhibiting high strength, fatigue resistance, excellent biocompatibility, and biodegradability. Food Chem X 2023; 18:100728. [PMID: 37397217 PMCID: PMC10314210 DOI: 10.1016/j.fochx.2023.100728] [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: 03/21/2023] [Revised: 05/14/2023] [Accepted: 05/24/2023] [Indexed: 07/04/2023] Open
Abstract
Simultaneous realization of high strength, toughness, and fatigue resistance in natural starch-based hydrogel materials is challenging. A facile method of in situ self-assembly and a freeze-thaw cycle was proposed to construct double-network nanocomposite hydrogels of debranched corn starch/polyvinyl alcohol (Gels). Rheology, chemical structure, microstructure, and mechanical property of Gels were investigated. Notably, short linear starch chains were self-assembled into nanoparticles and subsequently into 3D microaggregates, which were tightly wrapped by starch and PVA network. Compared with corn starch single-network and starch/PVA double-network hydrogels, the Gels reached up to a higher compressive strength (ca. 1095.7 kPa), and then achieved to ∼20-30-fold improvement in compressive strength. Recovery efficiency exceeded 85% after 20 successive compression loading-unloading cycle tests. Furthermore, the Gels had good biocompatibility to L929 cells. Hence, the high-performance starch hydrogels are thought to serve as a biodegradable and biocompatible material to replace synthetic hydrogels, which can broaden their application fields.
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Affiliation(s)
- Mengshan Shang
- School of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu Province 214122, China
| | - Han Jiang
- College of Food Science and Engineering, Qingdao Agricultural University, Qingdao, Shandong Province 266109, China
- Qingdao Special Food Research Institute, Qingdao 266109, China
| | - Jiaqi Li
- College of Food Science and Engineering, Qingdao Agricultural University, Qingdao, Shandong Province 266109, China
| | - Na Ji
- College of Food Science and Engineering, Qingdao Agricultural University, Qingdao, Shandong Province 266109, China
- Qingdao Special Food Research Institute, Qingdao 266109, China
- Shandong Technology Innovation Center of Special Food, Qingdao 266109, China
| | - Man Li
- College of Food Science and Engineering, Qingdao Agricultural University, Qingdao, Shandong Province 266109, China
- Qingdao Special Food Research Institute, Qingdao 266109, China
- Shandong Technology Innovation Center of Special Food, Qingdao 266109, China
| | - Lei Dai
- College of Food Science and Engineering, Qingdao Agricultural University, Qingdao, Shandong Province 266109, China
- Qingdao Special Food Research Institute, Qingdao 266109, China
- Shandong Technology Innovation Center of Special Food, Qingdao 266109, China
| | - Jian He
- School of Food Science, Nanjing Xiaozhuang University, Nanjing, 211171, China
| | - Yang Qin
- College of Food Science and Engineering, Qingdao Agricultural University, Qingdao, Shandong Province 266109, China
- Qingdao Special Food Research Institute, Qingdao 266109, China
- Shandong Technology Innovation Center of Special Food, Qingdao 266109, China
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8
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Hao Y, Qu J, Tan L, Liu Z, Wang Y, Lin T, Yang H, Peng J, Zhai M. Synthesis and property of superabsorbent polymer based on cellulose grafted 2-acrylamido-2-methyl-1-propanesulfonic acid. Int J Biol Macromol 2023; 233:123643. [PMID: 36775220 DOI: 10.1016/j.ijbiomac.2023.123643] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2022] [Revised: 02/02/2023] [Accepted: 02/08/2023] [Indexed: 02/12/2023]
Abstract
An eco-friendly superabsorbent polymer (SAP) was prepared by grafting 2-acrylamido-2-methyl-1-propanesulfonic acid onto microcrystalline cellulose in lithium chloride/N, N-dimethylacetamide system. The synthesized SAP (cellulose-g-PAMPS) was characterized by FTIR, TGA, SEM, 1H NMR, 13C NMR and XRD. The water absorption equilibrium of cellulose-g-PAMPS could be achieved within 10 min in distilled water. Moreover, the maximum water absorption capacities of cellulose-g-PAMPS in distilled water, 0.9 wt% NaCl solution and 3.2 wt% Na2CO3 solution were 648.9, 298.4 and 207.3 g·g-1, respectively. The water absorption behavior of cellulose-g-PAMPS was interpreted by the pseudo-second-order model. Furthermore, cellulose-g-PAMPS could be used in some extreme conditions due to its high acid and alkali resistance. The water retention rate of cellulose-g-PAMPS could be maintained above 90 % at 25 °C for 6 h. As a consequence, the synthesized SAP can be applied to increase the plant growth and survival time under drought conditions, even under saline alkali conditions.
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Affiliation(s)
- Yan Hao
- Institute of Applied Chemistry School of Chemistry and Chemical Engineering, Inner Mongolia University of Science & Technology, Baotou 014010, PR China.
| | - Jing Qu
- Institute of Applied Chemistry School of Chemistry and Chemical Engineering, Inner Mongolia University of Science & Technology, Baotou 014010, PR China
| | - Lei Tan
- Institute of Applied Chemistry School of Chemistry and Chemical Engineering, Inner Mongolia University of Science & Technology, Baotou 014010, PR China
| | - Zunyi Liu
- Institute of Applied Chemistry School of Chemistry and Chemical Engineering, Inner Mongolia University of Science & Technology, Baotou 014010, PR China
| | - Yicheng Wang
- Beijing National Laboratory for Molecular Sciences, Radiochemistry and Radiation Chemistry Key Laboratory of Fundamental Science, the Key Laboratory of Polymer Chemistry and Physics of the Ministry of Education, College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, PR China
| | - Tingrui Lin
- Beijing National Laboratory for Molecular Sciences, Radiochemistry and Radiation Chemistry Key Laboratory of Fundamental Science, the Key Laboratory of Polymer Chemistry and Physics of the Ministry of Education, College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, PR China; Fujian Key Laboratory of Architectural Coating, Skshu Paint Co., Ltd., Putian, Fujian 351100, PR China
| | - Hui Yang
- Institute of Applied Chemistry School of Chemistry and Chemical Engineering, Inner Mongolia University of Science & Technology, Baotou 014010, PR China
| | - Jing Peng
- Beijing National Laboratory for Molecular Sciences, Radiochemistry and Radiation Chemistry Key Laboratory of Fundamental Science, the Key Laboratory of Polymer Chemistry and Physics of the Ministry of Education, College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, PR China
| | - Maolin Zhai
- Beijing National Laboratory for Molecular Sciences, Radiochemistry and Radiation Chemistry Key Laboratory of Fundamental Science, the Key Laboratory of Polymer Chemistry and Physics of the Ministry of Education, College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, PR China.
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9
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Han N, Yao X, Wang Y, Huang W, Niu M, Zhu P, Mao Y. Recent Progress of Biomaterials-Based Epidermal Electronics for Healthcare Monitoring and Human-Machine Interaction. BIOSENSORS 2023; 13:393. [PMID: 36979605 PMCID: PMC10046871 DOI: 10.3390/bios13030393] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 01/30/2023] [Revised: 03/08/2023] [Accepted: 03/14/2023] [Indexed: 06/18/2023]
Abstract
Epidermal electronics offer an important platform for various on-skin applications including electrophysiological signals monitoring and human-machine interactions (HMI), due to their unique advantages of intrinsic softness and conformal interfaces with skin. The widely used nondegradable synthetic materials may produce massive electronic waste to the ecosystem and bring safety issues to human skin. However, biomaterials extracted from nature are promising to act as a substitute material for the construction of epidermal electronics, owing to their diverse characteristics of biocompatibility, biodegradability, sustainability, low cost and natural abundance. Therefore, the development of natural biomaterials holds great prospects for advancement of high-performance sustainable epidermal electronics. Here, we review the recent development on different types of biomaterials including proteins and polysaccharides for multifunctional epidermal electronics. Subsequently, the applications of biomaterials-based epidermal electronics in electrophysiological monitoring and HMI are discussed, respectively. Finally, the development situation and future prospects of biomaterials-based epidermal electronics are summarized. We expect that this review can provide some inspirations for the development of future, sustainable, biomaterials-based epidermal electronics.
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Manaila E, Craciun G, Lungu IB, Dumitru Grivei MD, Maria Daniela S. Degradation by Electron Beam Irradiation of Some Elastomeric Composites Sulphur Vulcanized. MATERIALS (BASEL, SWITZERLAND) 2023; 16:2152. [PMID: 36984033 PMCID: PMC10058693 DOI: 10.3390/ma16062152] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 02/06/2023] [Revised: 03/02/2023] [Accepted: 03/03/2023] [Indexed: 06/18/2023]
Abstract
Composites based on natural rubber and plasticized starch obtained by the conventional method of sulfur cross-linking using four types of vulcanization accelerators (Diphenyl guanidine, 2-Mercaptobenzothiazole, N-Cyclohexyl-2-benzothiazole sulfenamide, and Tetramethylthiuram disulfide) were irradiated with an electron beam in the dose range of 150 and 450 kGy for the purpose of degradation. The vulcanization accelerators were used in different percentages and combinations, resulting in four mixtures with different potential during the cross-linking process (synergistic, activator, or additive). The resulting composites were investigated before and after irradiation in order to establish a connection between the type of accelerator mixture, irradiation dose, and composite properties (gel fraction, cross-linking degree, water absorption, mass loss in water and toluene, mechanical properties, and structural and morphological properties). The results showed that the mixtures became sensitive at the irradiation dose of 300 kGy and at the irradiation dose of 450 kGy, and the consequences of the degradation processes were discussed.
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Affiliation(s)
- Elena Manaila
- Electron Accelerators Laboratory, National Institute for Laser, Plasma and Radiation Physics, 409 Atomistilor St., 077125 Magurele, Romania
| | - Gabriela Craciun
- Electron Accelerators Laboratory, National Institute for Laser, Plasma and Radiation Physics, 409 Atomistilor St., 077125 Magurele, Romania
| | - Ion Bogdan Lungu
- Multipurpose Irradiation Facility Center—IRASM, Horia Hulubei National Institute for R&D in Physics and Nuclear Engineering, 30 Reactorului St., 077125 Magurele, Romania
| | - Marius Daniel Dumitru Grivei
- Electron Accelerators Laboratory, National Institute for Laser, Plasma and Radiation Physics, 409 Atomistilor St., 077125 Magurele, Romania
| | - Stelescu Maria Daniela
- National R&D Institute for Textile and Leather—Leather and Footwear Research Institute, 93 Ion Minulescu St., 031215 Bucharest, Romania
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11
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Tiamwong S, Yukhajon P, Noisong P, Subsadsana M, Sansuk S. Eco-Friendly Starch Composite Supramolecular Alginate–Ca2+ Hydrogel as Controlled-Release P Fertilizer with Low Responsiveness to Multiple Environmental Stimuli. Gels 2023; 9:gels9030204. [PMID: 36975653 PMCID: PMC10048729 DOI: 10.3390/gels9030204] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2023] [Revised: 03/03/2023] [Accepted: 03/06/2023] [Indexed: 03/10/2023] Open
Abstract
Environmentally friendly fertilizers (EFFs) have been developed to improve fertilizer efficiency and minimize adverse environmental impacts, but their release behavior under various environmental conditions has been less explored. Using phosphorus (P) in the form of phosphate as a model nutrient, we present a simple method for preparing EFFs based on incorporating the nutrient into polysaccharide supramolecular hydrogels using Cassava starch in the Ca2+-induced cross-link gelation of alginate. The optimal conditions for creating these starch-regulated phosphate hydrogel beads (s-PHBs) were determined, and their release characteristics were initially evaluated in deionized water and then under various environmental stimuli, including pH, temperature, ionic strength, and water hardness. We found that incorporating a starch composite in s-PHBs at pH = 5 resulted in a rough but rigid surface and improved their physical and thermal stability, compared with phosphate hydrogel beads without starch (PHBs), due to the dense hydrogen bonding-supramolecular networks. Additionally, the s-PHBs showed controlled phosphate-release kinetics, following a parabolic diffusion with reduced initial burst effects. Importantly, the developed s-PHBs exhibited a promising low responsiveness to environmental stimuli for phosphate release even under extreme conditions and when tested in rice field water samples, suggesting their potential as a universally effective option for large-scale agricultural activities and potential value for commercial production.
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Affiliation(s)
- Supattra Tiamwong
- Materials Chemistry Research Center, Department of Chemistry and Center of Excellence for Innovation in Chemistry, Faculty of Science, Khon Kaen University, Khon Kaen 40002, Thailand
| | - Pratchayaporn Yukhajon
- Materials Chemistry Research Center, Department of Chemistry and Center of Excellence for Innovation in Chemistry, Faculty of Science, Khon Kaen University, Khon Kaen 40002, Thailand
| | - Pittayagorn Noisong
- Materials Chemistry Research Center, Department of Chemistry and Center of Excellence for Innovation in Chemistry, Faculty of Science, Khon Kaen University, Khon Kaen 40002, Thailand
| | - Maliwan Subsadsana
- Program of Chemistry, Faculty of Science and Technology, Nakhon Ratchasima Rajabhat University, Nakhon Ratchasima 30000, Thailand
| | - Sira Sansuk
- Materials Chemistry Research Center, Department of Chemistry and Center of Excellence for Innovation in Chemistry, Faculty of Science, Khon Kaen University, Khon Kaen 40002, Thailand
- Correspondence:
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12
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Wang R, Li R, Li F, Zheng P, Wang Z, Qian S. Glycerol and Antimicrobial Peptide-Modified Natural Latex for Bacteriostasis of Skin Wounds. ACS OMEGA 2023; 8:1505-1513. [PMID: 36643537 PMCID: PMC9835661 DOI: 10.1021/acsomega.2c07008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/31/2022] [Accepted: 12/16/2022] [Indexed: 06/17/2023]
Abstract
This work aimed to develop a glycerol antimicrobial peptide natural latex film (NRL-GI-AMP film) for the treatment of skin wound infections. The contents of this work mainly include investigating the effect of adding glycerol (GI) and an antimicrobial peptide (AMP) on the physical and chemical properties of natural latex (NRL) and analyzing the cytocompatibility, bacteriostatic activity, and infected wound healing promotion of the NRL-GI-AMP film. The results showed that the addition of GI resulted in more pores in the internal structure of the NRL film, while the addition of G(LLKK)3L AMP did not change the structure and properties of the NRL film. Compared with that of the NRL film, the infrared spectrum of the NRL-GI-AMP film did not produce new characteristic peaks, indicating that GI and AMP were non-covalently cross-linked with NRL. Addition of 10% GI reduces the toughness of the NRL-GI-AMP film by 62.0%, increases the water vapor transmission rate by 8.95 mg/(cm2·h), and reduces the water absorption and water retention distributions by 33.0 and 24.7%, respectively. AMP in the NRL-GI-AMP film could be released continuously for 40 h, and the release rate was about 45%. The NRL-GI-AMP film showed good biocompatibility and antibacterial activity and promoted the healing of infected wounds. Therefore, the NRL-GI-AP film has potential application in the development of dressings to inhibit skin wound infection and promote wound healing.
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Affiliation(s)
- Ruonan Wang
- College
of Biological and Food Engineering, Anhui
Polytechnic University, Wuhu241000, China
| | - Rongyu Li
- School
of Basic Medical Sciences, Wannan Medical
College, Wuhu241002, China
| | - Fangkai Li
- College
of Biological and Food Engineering, Anhui
Polytechnic University, Wuhu241000, China
| | - Peng Zheng
- College
of Biological and Food Engineering, Anhui
Polytechnic University, Wuhu241000, China
| | - Zhou Wang
- College
of Biological and Food Engineering, Anhui
Polytechnic University, Wuhu241000, China
| | - Senhe Qian
- College
of Biological and Food Engineering, Anhui
Polytechnic University, Wuhu241000, China
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13
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Sowińska-Baranowska A, Maciejewska M, Duda P. The Potential Application of Starch and Walnut Shells as Biofillers for Natural Rubber (NR) Composites. Int J Mol Sci 2022; 23:ijms23147968. [PMID: 35887318 PMCID: PMC9323199 DOI: 10.3390/ijms23147968] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2022] [Revised: 07/15/2022] [Accepted: 07/16/2022] [Indexed: 02/01/2023] Open
Abstract
The goal of this study was application of corn starch and ground walnut shells in various amounts by weight as biofillers of natural rubber (NR) biocomposites. Additionally, ionic liquid 1-butyl-3-methylimidazolium chloride (BmiCl) and (3-aminopropyl)-triethoxysilane (APTES) were used to increase the activity of biofillers and to improve the curing characteristics of NR composites. The effect of biofillers used and their modification with aminosilane or ionic liquid on the curing characteristics of NR composites and their functional properties, including crosslink density, mechanical properties in static and dynamic conditions, hardness, thermal stability and resistance to thermo-oxidative aging were investigated. Starch and ground walnut shells were classified as inactive fillers, which can be used alternatively to commercial inactive fillers, e.g., chalk. BmiCl and APTES were successfully used to support the vulcanization and to improve the dispersion of biofillers in NR elastomer matrix. Vulcanizates with starch, especially those containing APTES and BmiCl, exhibited improved tensile properties due to the higher crosslink density and homogenous dispersion of starch, which resulted from BmiCl addition. NR filled with ground walnut shells demonstrated improved resistance to thermo-oxidative aging. It resulted from lignin present in walnut shells, the components of which belong to polyphenols, that have an antioxidant activity.
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Manaila E, Craciun G, Ighigeanu D, Lungu IB, Dumitru Grivei MD, Stelescu MD. Degradation by Electron Beam Irradiation of Some Composites Based on Natural Rubber Reinforced with Mineral and Organic Fillers. Int J Mol Sci 2022; 23:ijms23136925. [PMID: 35805934 PMCID: PMC9266345 DOI: 10.3390/ijms23136925] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2022] [Revised: 06/20/2022] [Accepted: 06/20/2022] [Indexed: 12/10/2022] Open
Abstract
Composites based on natural rubber reinforced with mineral (precipitated silica and chalk) and organic (sawdust and hemp) fillers in amount of 50 phr were obtained by peroxide cross-linking in the presence of trimethylolpropane trimethacrylate and irradiated by electron beam in the dose range of 150 and 450 kGy with the purpose of degradation. The composites mechanical characteristics, gel fraction, cross-linking degree, water uptake and weight loss in water and toluene were evaluated by specific analysis. The changes in structure and morphology were also studied by Fourier Transform Infrared Spectroscopy and Scanning Electron Microscopy. Based on the results obtained in the structural analysis, possible mechanisms specific to degradation are proposed. The increasing of irradiation dose to 450 kGy produced larger agglomerated structures, cracks and micro voids on the surface, as a result of the degradation process. This is consistent with that the increasing of irradiation dose to 450 kGy leads to a decrease in crosslinking and gel fraction but also drastic changes in mechanical properties specific to the composites’ degradation processes. The irradiation of composites reinforced with organic fillers lead to the formation of specific degradation compounds of both natural rubber and cellulose (aldehydes, ketones, carboxylic acids, compounds with small macromolecules). In the case of the composites reinforced with mineral fillers the degradation can occur by the cleavage of hydrogen bonds formed between precipitated silica or chalk particles and polymeric matrix also.
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Affiliation(s)
- Elena Manaila
- Electron Accelerators Laboratory, National Institute for Laser, Plasma and Radiation Physics, 409 Atomistilor Street, 077125 Magurele, Romania; (E.M.); (D.I.); (M.D.D.G.)
| | - Gabriela Craciun
- Electron Accelerators Laboratory, National Institute for Laser, Plasma and Radiation Physics, 409 Atomistilor Street, 077125 Magurele, Romania; (E.M.); (D.I.); (M.D.D.G.)
- Correspondence: ; Tel.: +40-21-457-4346
| | - Daniel Ighigeanu
- Electron Accelerators Laboratory, National Institute for Laser, Plasma and Radiation Physics, 409 Atomistilor Street, 077125 Magurele, Romania; (E.M.); (D.I.); (M.D.D.G.)
| | - Ion Bogdan Lungu
- Multipurpose Irradiation Facility Center—IRASM, Horia Hulubei National Institute for R&D in Physics and Nuclear Engineering, 30 Reactorului Street, 077125 Magurele, Romania;
| | - Marius Daniel Dumitru Grivei
- Electron Accelerators Laboratory, National Institute for Laser, Plasma and Radiation Physics, 409 Atomistilor Street, 077125 Magurele, Romania; (E.M.); (D.I.); (M.D.D.G.)
| | - Maria Daniela Stelescu
- Leather and Footwear Research Institute, National R&D Institute for Textile and Leather, 93 Ion Minulescu Street, 031215 Bucharest, Romania;
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15
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Chiaregato CG, França D, Messa LL, Dos Santos Pereira T, Faez R. A review of advances over 20 years on polysaccharide-based polymers applied as enhanced efficiency fertilizers. Carbohydr Polym 2022; 279:119014. [PMID: 34980357 DOI: 10.1016/j.carbpol.2021.119014] [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: 08/03/2021] [Revised: 12/07/2021] [Accepted: 12/09/2021] [Indexed: 11/28/2022]
Abstract
Over the last 20 years, polysaccharide-based materials have garnered attention in the enhanced efficiency fertilizers (EEFs) research. Biodegradability, non-toxicity, water-solubility, swellability, and ease of chemical modification make these polymers suitable for agricultural applications. In this review, the polysaccharides-based EEFs advances are summarized over the polymer and co-materials selection, the methods, and the chemical/structure aspects necessary for an appropriate production. We also briefly discuss terminologies, nutrient release mechanisms, biodegradation, and future trends. The most used polysaccharides are chitosan, starch, and alginate, and the non-Fickian model most describes the release mechanism. It is dependent on the relaxation of polymer chains by the matrix swelling followed by the nutrient diffusion. EEFs-polymers-based should be designed as more packed and less porous structures to avoid the immediate contact of the fertilizer with the surrounding water, improving fertilizer retention. Furthermore, the preparation methods will determine the scale-up of the material.
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Affiliation(s)
- Camila Gruber Chiaregato
- Laboratory of Polymeric Materials and Biosorbents, Federal University of São Carlos, UFSCar, 13600970 Araras, SP, Brazil
| | - Débora França
- Laboratory of Polymeric Materials and Biosorbents, Federal University of São Carlos, UFSCar, 13600970 Araras, SP, Brazil
| | - Lucas Luiz Messa
- Laboratory of Polymeric Materials and Biosorbents, Federal University of São Carlos, UFSCar, 13600970 Araras, SP, Brazil
| | - Tamires Dos Santos Pereira
- Laboratory of Polymeric Materials and Biosorbents, Federal University of São Carlos, UFSCar, 13600970 Araras, SP, Brazil
| | - Roselena Faez
- Laboratory of Polymeric Materials and Biosorbents, Federal University of São Carlos, UFSCar, 13600970 Araras, SP, Brazil.
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16
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Thomas SK, Parameswaranpillai J, Krishnasamy S, Begum PS, Nandi D, Siengchin S, George JJ, Hameed N, Salim N, Sienkiewicz N. A comprehensive review on cellulose, chitin, and starch as fillers in natural rubber biocomposites. CARBOHYDRATE POLYMER TECHNOLOGIES AND APPLICATIONS 2021. [DOI: 10.1016/j.carpta.2021.100095] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022] Open
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17
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Green synthesis and evaluation of calcium-based nanocomposites fertilizers: A way forward to sustainable agricultural. JOURNAL OF THE SAUDI SOCIETY OF AGRICULTURAL SCIENCES 2021. [DOI: 10.1016/j.jssas.2021.06.005] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
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18
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Tanan W, Panichpakdee J, Suwanakood P, Saengsuwan S. Biodegradable hydrogels of cassava starch-g-polyacrylic acid/natural rubber/polyvinyl alcohol as environmentally friendly and highly efficient coating material for slow-release urea fertilizers. J IND ENG CHEM 2021. [DOI: 10.1016/j.jiec.2021.06.008] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
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19
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Manaila E, Craciun G, Ighigeanu D, Stelescu MD. Water Absorption Kinetics in Composites Degraded by the Radiation Technique. MATERIALS 2021; 14:ma14164659. [PMID: 34443179 PMCID: PMC8399285 DOI: 10.3390/ma14164659] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/05/2021] [Revised: 08/09/2021] [Accepted: 08/12/2021] [Indexed: 11/16/2022]
Abstract
Rubber-based wastes represent challenges facing the global community. Human health protection and preservation of environmental quality are strong reasons to find more efficient methods to induce degradation of latex/rubber products in order to replace devulcanization, incineration, or simply storage, and electron beam irradiation is a promising method that can be can be taken into account. Polymeric composites based on natural rubber and plasticized starch in amounts of 10 to 50 phr, obtained by benzoyl peroxide cross-linking, were subjected to 5.5 MeV electron beam irradiation in order to induce degradation, in the dose range of 150 to 450 kGy. A qualitative study was conducted on the kinetics of water absorption in these composites in order to appreciate their degradation degree. The percentages of equilibrium sorption and mass loss after equilibrium sorption were found to be dependent on irradiation dose and amount of plasticized starch. The mechanism of water transport in composites was studied not only through the specific absorption and diffusion parameters but also by the evaluation of the diffusion, intrinsic diffusion, permeation, and absorption coefficients.
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Affiliation(s)
- Elena Manaila
- Electron Accelerators Laboratory, National Institute for Laser, Plasma and Radiation Physics, 409 Atomistilor St., 077125 Magurele, Romania; (E.M.); (D.I.)
| | - Gabriela Craciun
- Electron Accelerators Laboratory, National Institute for Laser, Plasma and Radiation Physics, 409 Atomistilor St., 077125 Magurele, Romania; (E.M.); (D.I.)
- Correspondence: ; Tel.: +40-04-021-457-4346
| | - Daniel Ighigeanu
- Electron Accelerators Laboratory, National Institute for Laser, Plasma and Radiation Physics, 409 Atomistilor St., 077125 Magurele, Romania; (E.M.); (D.I.)
| | - Maria Daniela Stelescu
- National R&D Institute for Textile and Leather—Leather and Footwear Research Institute, 93 Ion Minulescu St, 031215 Bucharest, Romania;
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20
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Waterborne butyl methacrylate (co)polymers prepared by pickering emulsion polymerization: Insight of their use as coating materials for slow release-fertilizers. Eur Polym J 2021. [DOI: 10.1016/j.eurpolymj.2021.110598] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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21
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Kalendova P, Svoboda L, Hroch J, Honcova P, Drobna H, Slang S. Hydrogels Based on Starch from Various Natural Sources: Synthesis and Characterization. STARCH-STARKE 2021. [DOI: 10.1002/star.202100051] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Affiliation(s)
- Petra Kalendova
- Faculty of Chemical Technology University of Pardubice Department of Inorganic Technology Doubravice 41 Pardubice 53210 Czech Republic
| | - Ladislav Svoboda
- Faculty of Chemical Technology University of Pardubice Department of Inorganic Technology Doubravice 41 Pardubice 53210 Czech Republic
| | - Jan Hroch
- Faculty of Chemical Technology University of Pardubice Department of Inorganic Technology Doubravice 41 Pardubice 53210 Czech Republic
| | - Pavla Honcova
- Faculty of Chemical Technology University of Pardubice Department of Inorganic Technology Doubravice 41 Pardubice 53210 Czech Republic
| | - Helena Drobna
- Faculty of Chemical Technology University of Pardubice Department of Physical Chemistry Studentska 573 Pardubice 53210 Czech Republic
| | - Stanislav Slang
- Faculty of Chemical Technology University of Pardubice Center of Materials and Nanotechnologies Nam Cs. Legii 565 Pardubice 53002 Czech Republic
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22
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Electron Beam Irradiation: A Method for Degradation of Composites Based on Natural Rubber and Plasticized Starch. Polymers (Basel) 2021; 13:polym13121950. [PMID: 34208234 PMCID: PMC8230875 DOI: 10.3390/polym13121950] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2021] [Revised: 05/28/2021] [Accepted: 06/08/2021] [Indexed: 11/18/2022] Open
Abstract
Polymeric composites based on natural rubber (NR) and plasticized starch (PS) obtained by peroxide cross-linking have been subjected to electron beam irradiation in order to investigate their degradation. The amount of PS ranged from 10 to 50 phr and the irradiation dose from 150 to 450 kGy. Irradiation was performed in atmospheric conditions using a linear electron accelerator of 5.5 MeV. Changes in chemical, physical, structural, and morphological properties of composites were correlated with variables, such as PS loading and irradiation dose. Thus, mechanical properties, gel fraction, cross-linking degree, water uptake, weight loss in toluene/water were compared with those obtained before irradiation. The changes in structure and morphology were studied by Fourier Transform Infrared Spectroscopy and Scanning Electron Microscopy. Both PS loading and irradiation dose were found to be responsible for the degradation installing. Moreover, it has been shown that at the dose of 450 kGy, chain scission is dominant over cross-linking.
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23
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Abid U, Gill YQ, Irfan MS, Umer R, Saeed F. Potential applications of polycarbohydrates, lignin, proteins, polyacids, and other renewable materials for the formulation of green elastomers. Int J Biol Macromol 2021; 181:1-29. [PMID: 33744249 DOI: 10.1016/j.ijbiomac.2021.03.057] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2020] [Revised: 02/24/2021] [Accepted: 03/10/2021] [Indexed: 12/18/2022]
Abstract
Renewable resources including polycarbohydrates, lignin, proteins, and polyacids are the intrinsically valuable class of materials that are naturally available in great quantities. Their utilization as green additives and reinforcing bio-fillers, in substitution of environmentally perilous petroleum-based fillers, for developing high-performance green rubber blends and composites is presently a highly tempting option. Blending of these renewable materials with elastomers is not straight-forward and research needs to exploit the high functionality of carbohydrates and other natural materials as proper physicochemical interactions are essential. Correlating and understanding the structural properties of lignin, carbohydrates, polyacids, and other biopolymers, before their incorporation in elastomers, is a potential approach towards the development of green elastomers for value-added applications. Promising properties i.e., biodegradability, biocompatibility, morphological characteristics, high mechanical properties, thermal stability, sustainability, and various other characteristics along with recent advancements in the development of green elastomers are reviewed in this paper. Structures, viability, interactions, properties, and use of most common natural polycarbohydrates (chitosan and starch), lignin, and proteins (collagen and gelatin) for elastomer modification are extensively reviewed. Challenges in commercialization, applications, and future perspectives of green elastomers are also discussed. Sustainability analysis of green elastomers is accomplished to elaborate their cost-effectiveness and environmental friendliness.
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Affiliation(s)
- Umer Abid
- Department of Polymer and Process Engineering, University of Engineering and Technology, G. T. Road, PO Box 54890, Lahore, Pakistan.
| | - Yasir Qayyum Gill
- Department of Polymer and Process Engineering, University of Engineering and Technology, G. T. Road, PO Box 54890, Lahore, Pakistan.
| | - Muhammad Shafiq Irfan
- Department of Polymer and Process Engineering, University of Engineering and Technology, G. T. Road, PO Box 54890, Lahore, Pakistan; Department of Aerospace Engineering, Khalifa University of Science and Technology, PO Box 127788, Abu Dhabi, United Arab Emirates.
| | - Rehan Umer
- Department of Aerospace Engineering, Khalifa University of Science and Technology, PO Box 127788, Abu Dhabi, United Arab Emirates.
| | - Farhan Saeed
- Department of Polymer and Process Engineering, University of Engineering and Technology, G. T. Road, PO Box 54890, Lahore, Pakistan.
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Controlled Release Fertilizers: A Review on Coating Materials and Mechanism of Release. PLANTS 2021; 10:plants10020238. [PMID: 33530608 PMCID: PMC7912041 DOI: 10.3390/plants10020238] [Citation(s) in RCA: 71] [Impact Index Per Article: 23.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/16/2020] [Revised: 01/14/2021] [Accepted: 01/20/2021] [Indexed: 02/06/2023]
Abstract
Rising world population is expected to increase the demand for nitrogen fertilizers to improve crop yield and ensure food security. With existing challenges on low nutrient use efficiency (NUE) of urea and its environmental concerns, controlled release fertilizers (CRFs) have become a potential solution by formulating them to synchronize nutrient release according to the requirement of plants. However, the most significant challenge that persists is the "tailing" effect, which reduces the economic benefits in terms of maximum fertilizer utilization. High materials cost is also a significant obstacle restraining the widespread application of CRF in agriculture. The first part of this review covers issues related to the application of conventional fertilizer and CRFs in general. In the subsequent sections, different raw materials utilized to form CRFs, focusing on inorganic and organic materials and synthetic and natural polymers alongside their physical and chemical preparation methods, are compared. Important factors affecting rate of release, mechanism of release and mathematical modelling approaches to predict nutrient release are also discussed. This review aims to provide a better overview of the developments regarding CRFs in the past ten years, and trends are identified and analyzed to provide an insight for future works in the field of agriculture.
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25
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Yin P, Chen C, Ma H, Gan H, Guo B, Li P. Surface cross-linked thermoplastic starch with different UV wavelengths: mechanical, wettability, hygroscopic and degradation properties. RSC Adv 2020; 10:44815-44823. [PMID: 35516245 PMCID: PMC9058671 DOI: 10.1039/d0ra07549c] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2020] [Accepted: 12/07/2020] [Indexed: 11/21/2022] Open
Abstract
Here, we report a method to improve the properties of thermoplastic starch (TPS) by surface ultraviolet (UV) cross-linking. TPS sheets were prepared by injection molding and coated with an ethanol solution of photo-initiator TPO (2,4,6-trimethyl benzoyl diphenyl phosphine oxide), then, irradiated by UV with different wavelengths for 15 min. Untreated and irradiated TPS sheets were characterized using tensile and bending tests, impact tests, dynamic mechanical thermal analysis (DMTA) and infrared spectroscopy (FTIR). FTIR spectra showed that UV irradiation can effectively trigger surface cross-linking of TPS sheets. The mechanical and dynamic mechanical properties of the TPS were improved and the optimized properties were obtained by 308 nm UV irradiation. A tensile strength of 4.1 MPa, a bending strength of 2.7 MPa, an impact strength of 96.8 kJ m-2, and the corresponding activation energy of 251.22 kJ mol-1 were obtained. The water contact angle and moisture absorption of the samples were also investigated and the 308 nm UV irradiated sheets have a contact angle of 74°. Moisture absorption rate as a function of the square root of time showed a sigmoid curve including a linear stage which conforms to Fick's second law. The samples irradiated by 308 nm UV had the lowest equilibrium moisture absorption rate M ∞ and the longest time T 0 to enter into the Fick's diffusion stage and the lowest slope K and diffusion coefficient D. All samples displayed biodegradable properties when buried in soil. This method has potential applications for agricultural mulch films, packing and medical film products.
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Affiliation(s)
- Peng Yin
- College of Science, Nanjing Forestry University Nanjing 210037 China +86 25 85427625
| | - Chunhao Chen
- College of Science, Nanjing Forestry University Nanjing 210037 China +86 25 85427625
| | - Hongpeng Ma
- College of Science, Nanjing Forestry University Nanjing 210037 China +86 25 85427625
| | - Huijuan Gan
- College of Science, Nanjing Forestry University Nanjing 210037 China +86 25 85427625
| | - Bin Guo
- College of Science, Nanjing Forestry University Nanjing 210037 China +86 25 85427625.,Agricultural and Forest Products Processing Academician Workstation Luohe 462600 China.,Post-Doctoral Research Center of Nanjiecun Group Luohe 462600 China
| | - Panxin Li
- Agricultural and Forest Products Processing Academician Workstation Luohe 462600 China.,Post-Doctoral Research Center of Nanjiecun Group Luohe 462600 China
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Prabhu S, S. G. B, Gudennavar SB. Sodium alginate/bismuth (
III
) oxide composites for γ‐ray shielding applications. J Appl Polym Sci 2020. [DOI: 10.1002/app.50369] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Affiliation(s)
- Srilakshmi Prabhu
- Department of Physics and Electronics CHRIST (Deemed to be University), Bangalore Central Campus Bengaluru India
| | - Bubbly S. G.
- Department of Physics and Electronics CHRIST (Deemed to be University), Bangalore Central Campus Bengaluru India
| | - Shivappa B. Gudennavar
- Department of Physics and Electronics CHRIST (Deemed to be University), Bangalore Central Campus Bengaluru India
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27
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A packaging material from a waste paper/sugar cane stalk composite: Preparation and properties. Food Packag Shelf Life 2020. [DOI: 10.1016/j.fpsl.2020.100568] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
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Riyajan SA, Chantawee K. Cassava starch composite based films for encapsulated neem: Effect of carboxylated styrene-butadiene rubber coating. Food Packag Shelf Life 2020. [DOI: 10.1016/j.fpsl.2019.100438] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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29
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Cui Y, Xiang Y, Xu Y, Wei J, Zhang Z, Li L, Li J. Poly-acrylic acid grafted natural rubber for multi-coated slow release compound fertilizer: Preparation, properties and slow-release characteristics. Int J Biol Macromol 2020; 146:540-548. [DOI: 10.1016/j.ijbiomac.2020.01.051] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2019] [Revised: 12/31/2019] [Accepted: 01/06/2020] [Indexed: 01/07/2023]
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30
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Superabsorbent polymers: A review on the characteristics and applications of synthetic, polysaccharide-based, semi-synthetic and ‘smart’ derivatives. Eur Polym J 2019. [DOI: 10.1016/j.eurpolymj.2019.04.054] [Citation(s) in RCA: 96] [Impact Index Per Article: 19.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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31
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Tanan W, Panichpakdee J, Saengsuwan S. Novel biodegradable hydrogel based on natural polymers: Synthesis, characterization, swelling/reswelling and biodegradability. Eur Polym J 2019. [DOI: 10.1016/j.eurpolymj.2018.10.033] [Citation(s) in RCA: 43] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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32
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Alwaan IM, Jafar MMRM, Allebban ZSM. Development of biodegradable starch nanocrystals/gum Arabic hydrogels for controlled drug delivery and cancer therapy. Biomed Phys Eng Express 2019. [DOI: 10.1088/2057-1976/aafc14] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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33
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Development of a novel pH-sensitive polymer matrix for drug encapsulation from maleated poly(vinyl alcohol) grafted with polyacrylamide. Polym Bull (Berl) 2018. [DOI: 10.1007/s00289-018-2615-4] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
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The use of biovesicles to improve the efficiency of Zn foliar fertilization. Colloids Surf B Biointerfaces 2018; 173:899-905. [PMID: 30551307 DOI: 10.1016/j.colsurfb.2018.10.057] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2018] [Revised: 10/17/2018] [Accepted: 10/22/2018] [Indexed: 11/24/2022]
Abstract
Foliar fertilization is becoming very popular since it is highly efficient, minimizes contamination, and is target oriented. However, the low mobility of several nutrients and low penetration through the leaf cuticle should be addressed, to establish an efficient leaf applied fertilizer. During the last few years, nanotechnologies - such as nanocarriers - have been studied with regard to improving the penetration and delivery of compounds. This work describes the use of membrane vesicles obtained from Brassica oleracea L. as nanobiocarriers of Zn and the evaluation of their potential as a foliar fertilizer, also in Brassica. The results show a high Zn encapsulation efficiency and high delivery into protoplasts. Also, the foliar fertilization experiments demonstrated a very effective system of Zn nanofertilization.
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35
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Riyajan SA. Novel polymer from a cassava starch/carboxylated styrene-butadiene blend containing potassium persulfate: design and properties. Polym Bull (Berl) 2018. [DOI: 10.1007/s00289-018-2273-6] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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36
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Manaila E, Stelescu MD, Craciun G. Degradation Studies Realized on Natural Rubber and Plasticized Potato Starch Based Eco-Composites Obtained by Peroxide Cross-Linking. Int J Mol Sci 2018; 19:ijms19102862. [PMID: 30241399 PMCID: PMC6212896 DOI: 10.3390/ijms19102862] [Citation(s) in RCA: 33] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2018] [Revised: 09/14/2018] [Accepted: 09/18/2018] [Indexed: 11/16/2022] Open
Abstract
The obtaining and characterization of some environmental-friendly composites that are based on natural rubber and plasticized starch, as filler, are presented. These were obtained by peroxide cross-linking in the presence of a polyfunctional monomer used here as cross-linking co-agent, trimethylolpropane trimethacrylate. The influence of plasticized starch amount on the composites physical and mechanical characteristics, gel fraction and cross-link density, water uptake, structure and morphology before and after accelerated (thermal) degradation, and natural (for one year in temperate climate) ageing, was studied. Differences of two orders of magnitude between the degradation/aging methods were registered in the case of some mechanical characteristics, by increasing the plasticized starch amount. The cross-link density, water uptake and mass loss were also significant affected by the plasticized starch amount increasing and exposing for one year to natural ageing in temperate climate. Based on the results of Fourier Transform Infrared Spectroscopy (FTIR) and cross-link density measurements, reaction mechanisms attributed to degradation induced by accelerated and natural ageing were done. SEM micrographs have confirmed in addition that by incorporating a quantity of hydrophilic starch amount over 20 phr and by exposing the composites to natural ageing, and then degradability can be enhanced by comparing with thermal degradation.
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Affiliation(s)
- Elena Manaila
- Electron Accelerators Laboratory, National Institute for Laser, Plasma and Radiation Physics, 409 Atomistilor Street, 077125 Magurele, Romania.
| | - Maria Daniela Stelescu
- National R&D Institute for Textile and Leather-Leather and Footwear Research Institute, 93 Ion Minulescu Street, 031215 Bucharest, Romania.
| | - Gabriela Craciun
- Electron Accelerators Laboratory, National Institute for Laser, Plasma and Radiation Physics, 409 Atomistilor Street, 077125 Magurele, Romania.
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Azeem B, KuShaari K, Man Z, Irfan SA. Parametric study of tumbling fluidized bed to evaluate nitrogen release characteristics of biopolymer-coated controlled release urea. CHEM ENG COMMUN 2018. [DOI: 10.1080/00986445.2018.1451993] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Affiliation(s)
- Babar Azeem
- Department of Chemical Engineering, Universiti Teknologi Petronas, Perak, Malaysia
| | - KuZilati KuShaari
- Department of Chemical Engineering, Universiti Teknologi Petronas, Perak, Malaysia
| | - Zakaria Man
- Department of Chemical Engineering, Universiti Teknologi Petronas, Perak, Malaysia
| | - Sayed Ameenuddin Irfan
- Department of Fundamental and Applied Sciences, Universiti Teknologi Petronas, Perak, Malaysia
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38
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Binary grafted chitosan film: Synthesis, characterization, antibacterial activity and prospects for food packaging. Int J Biol Macromol 2018; 115:341-348. [DOI: 10.1016/j.ijbiomac.2018.04.084] [Citation(s) in RCA: 55] [Impact Index Per Article: 9.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2017] [Revised: 04/07/2018] [Accepted: 04/15/2018] [Indexed: 11/17/2022]
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39
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Azeem B, KuShaari K, Man Z, Trinh TH. EFFECT OF FLUIDIZED-BED PROCESS VARIABLES ON CONTROLLED-RELEASE OF NITROGEN AND COATING. BRAZILIAN JOURNAL OF CHEMICAL ENGINEERING 2018. [DOI: 10.1590/0104-6632.20180352s20160424] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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40
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Alwaan IM. Rheological characterization and modeling of vulcanization kinetics of natural rubber/starch blends. J Appl Polym Sci 2018. [DOI: 10.1002/app.46347] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Affiliation(s)
- Ismaeel Moslam Alwaan
- Department of Materials Engineering, College of Engineering; University of Kufa; Najaf Iraq
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41
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Chen J, Lü S, Zhang Z, Zhao X, Li X, Ning P, Liu M. Environmentally friendly fertilizers: A review of materials used and their effects on the environment. THE SCIENCE OF THE TOTAL ENVIRONMENT 2018; 613-614:829-839. [PMID: 28942316 DOI: 10.1016/j.scitotenv.2017.09.186] [Citation(s) in RCA: 134] [Impact Index Per Article: 22.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/14/2017] [Revised: 09/18/2017] [Accepted: 09/18/2017] [Indexed: 05/21/2023]
Abstract
Fertilizer plays an important role in maintaining soil fertility, increasing yields and improving harvest quality. However, a significant portion of fertilizers are lost, increasing agricultural cost, wasting energy and polluting the environment, which are challenges for the sustainability of modern agriculture. To meet the demands of improving yields without compromising the environment, environmentally friendly fertilizers (EFFs) have been developed. EFFs are fertilizers that can reduce environmental pollution from nutrient loss by retarding, or even controlling, the release of nutrients into soil. Most of EFFs are employed in the form of coated fertilizers. The application of degradable natural materials as a coating when amending soils is the focus of EFF research. Here, we review recent studies on materials used in EFFs and their effects on the environment. The major findings covered in this review are as follows: 1) EFF coatings can prevent urea exposure in water and soil by serving as a physical barrier, thereby reducing the urea hydrolysis rate and decreasing nitrogen oxide (NOx) and dinitrogen (N2) emissions, 2) EFFs can increase the soil organic matter content, 3) hydrogel/superabsorbent coated EFFs can buffer soil acidity or alkalinity and lead to an optimal pH for plants, and 4) hydrogel/superabsorbent coated EFFs can improve water-retention and water-holding capacity of soil. In conclusion, EFFs play an important role in enhancing nutrients efficiency and reducing environmental pollution.
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Affiliation(s)
- Jiao Chen
- State Key Laboratory of Applied Organic Chemistry, Key Laboratory of Nonferrous Metal Chemistry and Resources Utilization of Gansu Province, Department of Chemistry, Lanzhou University, Lanzhou 730000, People's Republic of China
| | - Shaoyu Lü
- State Key Laboratory of Applied Organic Chemistry, Key Laboratory of Nonferrous Metal Chemistry and Resources Utilization of Gansu Province, Department of Chemistry, Lanzhou University, Lanzhou 730000, People's Republic of China.
| | - Zhe Zhang
- State Key Laboratory of Applied Organic Chemistry, Key Laboratory of Nonferrous Metal Chemistry and Resources Utilization of Gansu Province, Department of Chemistry, Lanzhou University, Lanzhou 730000, People's Republic of China
| | - Xuxia Zhao
- State Key Laboratory of Applied Organic Chemistry, Key Laboratory of Nonferrous Metal Chemistry and Resources Utilization of Gansu Province, Department of Chemistry, Lanzhou University, Lanzhou 730000, People's Republic of China
| | - Xinming Li
- State Key Laboratory of Applied Organic Chemistry, Key Laboratory of Nonferrous Metal Chemistry and Resources Utilization of Gansu Province, Department of Chemistry, Lanzhou University, Lanzhou 730000, People's Republic of China
| | - Piao Ning
- State Key Laboratory of Applied Organic Chemistry, Key Laboratory of Nonferrous Metal Chemistry and Resources Utilization of Gansu Province, Department of Chemistry, Lanzhou University, Lanzhou 730000, People's Republic of China
| | - Mingzhu Liu
- State Key Laboratory of Applied Organic Chemistry, Key Laboratory of Nonferrous Metal Chemistry and Resources Utilization of Gansu Province, Department of Chemistry, Lanzhou University, Lanzhou 730000, People's Republic of China.
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42
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A new biodegradable sisal fiber-starch packing composite with nest structure. Carbohydr Polym 2018; 189:56-64. [PMID: 29580426 DOI: 10.1016/j.carbpol.2018.01.063] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2017] [Revised: 01/06/2018] [Accepted: 01/20/2018] [Indexed: 11/22/2022]
Abstract
A new completely biodegradable sisal fiber-starch packing composite was proposed. The effects of fiber content and alkaline treatment on the cushioning property of the composites were studied from energy absorption efficiency, cellular microstructure and compatibility between fiber and starch. With increasing fiber content, the nest structure of composites becomes dense first and then loosens, resulting in initial enhancement and subsequent weakening of the cushioning property of the composites. The composite with 4:13 mass ratio of fiber and thermoplastic starch (TPS) exhibit the optimal cushioning property. Alkaline treatment increases the compatibility between sisal fiber and TPS, promotes the formation of dense nest structure, thereby enhances the cushioning property of the composites. After biodegradability tests for 28 days, the weight loss of the composites was 62.36%. It's found that the composites are a promising replacement for expandable polystyrene (EPS) as packing material, especially under large compression load (0.7-6 MPa).
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Polgar LM, Fallani F, Cuijpers J, Raffa P, Broekhuis AA, van Duin M, Picchioni F. Water-swellable elastomers: synthesis, properties and applications. REV CHEM ENG 2017. [DOI: 10.1515/revce-2017-0052] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Abstract
Water-swellable elastomers (WSE) constitute a class of rubbery materials that have been widely studied both in academia and industry during the last 25 years. Market pull is the major driver for the exploration of these materials. The need of WSE in several sealing applications has driven the attention of many academic researchers toward the possibility to provide a rubber with water-swelling characteristics. As commercial rubbers are hydrophobic materials, making them swell in water presents an interesting and difficult challenge. This paper reviews the scientific and patent literature on the fundamental aspects of WSE: the various synthetic approaches, the properties of the corresponding polymers (not only the swelling performance but also the mechanical behavior), and some of their applications. Particular attention is paid to the chemical structure/performance relationships of WSE. Finally, the authors speculate on a great future for WSE that can be rationally designed for improved and/or new applications.
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Affiliation(s)
- Lorenzo M. Polgar
- University of Groningen , Department of Chemical Engineering , Nijenborgh 4 , 9747 AG Groningen , the Netherlands
| | - Francesca Fallani
- Allnex Netherlands B.V. , Synthesebaan 1 , 4600 AB Bergen op Zoom , the Netherlands
| | - Juul Cuijpers
- DSM Resins B.V. , Ceintuurbaan 5 , 8022 AW, Zwolle , the Netherlands
| | - Patrizio Raffa
- University of Groningen , Department of Chemical Engineering , Nijenborgh 4 , 9747 AG Groningen , the Netherlands
| | - Antonius A. Broekhuis
- University of Groningen , Department of Chemical Engineering , Nijenborgh 4 , 9747 AG Groningen , the Netherlands
| | - Martin van Duin
- University of Groningen , Department of Chemical Engineering , Nijenborgh 4 , 9747 AG Groningen , the Netherlands
- ARLANXEO Performance Elastomers, Keltan R&D , P.O. Box 1130 , 6160 BC Geleen , the Netherlands
| | - Francesco Picchioni
- University of Groningen , Department of Chemical Engineering , Nijenborgh 4 , 9747 AG Groningen , the Netherlands
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44
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Choowongapiichat S, Paradee N, Sirivat A. Refining natural rubber matrix for electrically stimulated transdermal drug delivery. INT J POLYM MATER PO 2017. [DOI: 10.1080/00914037.2017.1383251] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Affiliation(s)
| | - Nophawan Paradee
- Department of Chemistry, Faculty of Science, King Mongkut’s University of Technology Thonburi, Bangkok, Thailand
| | - Anuvat Sirivat
- The Petroleum and Petrochemical College, Chulalongkorn University, Bangkok, Thailand
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45
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Deproteinized natural rubber latex/gelatinized starch blended films as drug delivery carrier. MONATSHEFTE FUR CHEMIE 2017. [DOI: 10.1007/s00706-017-2005-x] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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46
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Tian B, Dong W, Liu Y. Grafting poly(vinyl alcohol) onto polybutadiene rubber latex particles by pre-irradiation. Radiat Phys Chem Oxf Engl 1993 2017. [DOI: 10.1016/j.radphyschem.2017.02.021] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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47
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Meimoun J, Wiatz V, Saint-Loup R, Parcq J, Favrelle A, Bonnet F, Zinck P. Modification of starch by graft copolymerization. STARCH-STARKE 2017. [DOI: 10.1002/star.201600351] [Citation(s) in RCA: 53] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Julie Meimoun
- Univ. Lille, CNRS, Centrale Lille, ENSCL, Univ. Artois; UMR 8181 - UCCS - Unité de Catalyse et Chimie du Solide; Lille France
- Institut Français des Matériaux Agro-Sourcés; Villeneuve-d'Ascq France
| | | | | | | | - Audrey Favrelle
- Univ. Lille, CNRS, Centrale Lille, ENSCL, Univ. Artois; UMR 8181 - UCCS - Unité de Catalyse et Chimie du Solide; Lille France
| | - Fanny Bonnet
- Univ. Lille, CNRS, Centrale Lille, ENSCL, Univ. Artois; UMR 8181 - UCCS - Unité de Catalyse et Chimie du Solide; Lille France
| | - Philippe Zinck
- Univ. Lille, CNRS, Centrale Lille, ENSCL, Univ. Artois; UMR 8181 - UCCS - Unité de Catalyse et Chimie du Solide; Lille France
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48
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Azeem B, KuShaari K, Man Z, Trinh TH. Nutrient release characteristics and coating homogeneity of biopolymer coated urea as a function of fluidized bed process variables. CAN J CHEM ENG 2016. [DOI: 10.1002/cjce.22741] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Babar Azeem
- Universiti Teknologi PETRONAS; 32610 Bandar Seri Iskandar Perak Darul Ridzuan Malaysia
| | - KuZilati KuShaari
- Universiti Teknologi PETRONAS; 32610 Bandar Seri Iskandar Perak Darul Ridzuan Malaysia
| | - Zakaria Man
- Universiti Teknologi PETRONAS; 32610 Bandar Seri Iskandar Perak Darul Ridzuan Malaysia
| | - Thanh H. Trinh
- Universiti Teknologi PETRONAS; 32610 Bandar Seri Iskandar Perak Darul Ridzuan Malaysia
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49
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A novel pH and temperature-sensitive maleate poly(vinyl alcohol)-graft-isopropylacrylamide/natural rubber blend: preparation and properties. Polym Bull (Berl) 2016. [DOI: 10.1007/s00289-016-1746-8] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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50
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Riyajan SA, Keawittarit P. A novel natural rubber-graft-cassava starch foam for oil/gasohol absorption. POLYM INT 2016. [DOI: 10.1002/pi.5062] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Sa-Ad Riyajan
- Department of Chemistry, Faculty of Science and Technology; Thammasat University; Knongluang Patumthani 12120 Thailand
- Department of Material Science and Technology, Faculty of Science; Prince of Songkla University; Songkhla 90110 Thailand
| | - Pramort Keawittarit
- Department of Material Science and Technology, Faculty of Science; Prince of Songkla University; Songkhla 90110 Thailand
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