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Dong Y, Ghasemzadeh M, Khorsandi Z, Sheibani R, Nasrollahzadeh M. Starch-based hydrogels for environmental applications: A review. Int J Biol Macromol 2024; 269:131956. [PMID: 38692526 DOI: 10.1016/j.ijbiomac.2024.131956] [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: 10/06/2023] [Revised: 04/19/2024] [Accepted: 04/27/2024] [Indexed: 05/03/2024]
Abstract
Water sources have become extremely scarce and contaminated by organic and inorganic industrial and agricultural pollutants as well as household wastes. Poisoning water resources by dyes and metals is a problem because contaminated water can leak into subsurface and surface sources, causing serious contamination and health problems. Therefore, developing wastewater treatment technologies is valuable. Today, hydrogels have attracted considerable attention owing to their broad applications. Hydrogels are polymeric network compositions with significant water-imbibing capacity. Hydrogels have potential applications in diverse fields such as biomedical, personal care products, pharmaceuticals, cosmetics, and biosensors. They can be prepared by using natural (biopolymers) and synthetic polymers. Synthetic polymer-based hydrogels obtained from petrochemicals are not environmentally benign; thus, abundant plant-based polysaccharides are found as more suitable compounds for making biodegradable hydrogels. Polysaccharides with many advantages such as non-toxicity, biodegradability, availability, inexpensiveness, etc. are widely employed for the preparation of environmentally friendly hydrogels. Polysaccharides-based hydrogels containing chitin, chitosan, gum, starch (St), etc. are employed to remove pollutants, metals, and dyes. Among these, St has attracted a lot of attention. St can be mixed with other compounds to make hydrogels, which remove dyes and metal ions to variable degrees of efficiency. Although St has numerous advantages, it suffers from drawbacks such as low stability, low water solubility, and fast degradability in water which limit its application as an environmental adsorbent. As an effective way to overcome these weaknesses, various modification approaches to form starch-based hydrogels (SBHs) employing different compounds have been reported. The preparation methods and applications of SBH adsorbents in organic dyes, hazardous materials, and toxic ions elimination from water resources have been comprehensively discussed in this review.
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Affiliation(s)
- Yahao Dong
- Henan Key Laboratory of Green Chemistry, Collaborative Innovation Center of Henan Province for Green Manufacturing of Fine Chemicals, Henan Engineering Laboratory of Chemical Pharmaceutical and Biomedical Materials, Key Laboratory of Green Chemical Media and Reactions, Ministry of Education, School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang 453007, PR China.
| | | | - Zahra Khorsandi
- Department of Chemistry, Faculty of Science, University of Qom, Qom 37185-359, Iran
| | - Reza Sheibani
- Amirkabir University of Technology-Mahshahr Campus, University St., Nahiyeh san'ati, Mahshahr, Khouzestan, Iran
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Huang J, Gotoh T, Nakai S, Ueda A. Dual Benefits of Hydrogel Remediation of Cadmium-Contaminated Water or Soil and Promotion of Vegetable Growth under Cadmium Stress. PLANTS (BASEL, SWITZERLAND) 2023; 12:4115. [PMID: 38140442 PMCID: PMC10747576 DOI: 10.3390/plants12244115] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/23/2023] [Revised: 12/04/2023] [Accepted: 12/07/2023] [Indexed: 12/24/2023]
Abstract
This study aims to solve the problem of cadmium heavy metal ion pollution caused by the abuse of chemical fertilizers and activities such as mining, which pose a serious threat to the plant growth environment. We successfully synthesized DMAPAA (N-(3-(Dimethyl amino) propyl) acrylamide)/DMAPAAQ (N, N-Dimethyl amino propyl acrylamide, methyl chloride quaternary) hydrogels via free radical polymerization. Subsequently, we conducted experiments on this hydrogel for growing vegetables under cadmium stress conditions in aqueous solutions and soil. The cadmium capture capacity of DMAPAA/DMAPAAQ hydrogels under different cadmium ion concentrations and pH values was evaluated by using inductively coupled plasma optical emission spectrometry (ICP). The research results show that under the condition of pH = 7.3, the cadmium capture capacity of DMAPAA/DMAPAAQ hydrogels is the greatest. We used the Langmuir model to fit the adsorption data, and the correlation coefficient was as high as 0.96, indicating that the model fits well. The application of the hydrogels promoted the growth of vegetables in soil under cadmium stress conditions. The results showed that when the added amount of hydrogel was 4%, the dry weight of the vegetables was the largest. In addition, when the added amount of cadmium was 500 mg/kg and the added amount of hydrogel was 4%, the absorption of cadmium by the vegetables decreased to an undetectable level. In summary, the hydrogel successfully synthesized in this study can be effectively used to immobilize cadmium ions in soil while positively promoting the growth and yield of vegetables. This achievement has practical significance for solving the problem of heavy metal ion pollution.
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Affiliation(s)
- Jin Huang
- Graduate School of Advanced Science and Engineering, Hiroshima University, 1-4-1 Kagamiyama, Higashi-Hiroshima 739-8527, Hiroshima, Japan; (J.H.); (S.N.)
| | - Takehiko Gotoh
- Graduate School of Advanced Science and Engineering, Hiroshima University, 1-4-1 Kagamiyama, Higashi-Hiroshima 739-8527, Hiroshima, Japan; (J.H.); (S.N.)
| | - Satoshi Nakai
- Graduate School of Advanced Science and Engineering, Hiroshima University, 1-4-1 Kagamiyama, Higashi-Hiroshima 739-8527, Hiroshima, Japan; (J.H.); (S.N.)
| | - Akihiro Ueda
- Graduate School of Integrated Sciences for Life, Hiroshima University, 1-4-1 Kagamiyama, Higashi-Hiroshima 739-8527, Hiroshima, Japan
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Lee I, Moon J, Lee H, Koh S, Kim GM, Gauthé L, Stellacci F, Huh YS, Kim P, Lee DC. Photodynamic treatment of multidrug-resistant bacterial infection using indium phosphide quantum dots. Biomater Sci 2022; 10:7149-7161. [PMID: 36367125 DOI: 10.1039/d2bm01393b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
Infections caused by multidrug-resistant (MDR) bacteria pose an impending threat to humanity, as the evolution of MDR bacteria outpaces the development of effective antibiotics. In this work, we use indium phosphide (InP) quantum dots (QDs) to treat infections caused by MDR bacteria via photodynamic therapy (PDT), which shows superior bactericidal efficiency over common antibiotics. PDT in the presence of InP QDs results in high-efficiency bactericidal activity towards various bacterial species, including Staphylococcus aureus, Bacillus cereus, Escherichia coli and Pseudomonas aeruginosa. Upon light absorption, InP QDs generate superoxide (O2˙-), which leads to efficient and selective killing of MDR bacteria while mammalian cells remain intact. The cytotoxicity evaluation reveals that InP QDs are bio- and blood-compatible in a wide therapeutic window. For the in vivo study, we drop a solution of InP QDs at a concentration within the therapeutic window onto MDR S. aureus-infected skin wounds of mice and perform PDT for 15 min. InP QDs show excellent therapeutic and prophylactic efficacy in treating MDR bacterial infection. These findings show that InP QDs have great potential to serve as antibacterial agents for MDR bacterial infection treatment, as an effective and complementary alternative to conventional antibiotics.
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Affiliation(s)
- Ilsong Lee
- Department of Chemical and Biomolecular Engineering, Korea Advanced Institute of Science and Technology (KAIST), Daejeon 34141, Korea. .,KAIST Institute for the Nanocentury (KINC), KAIST, Daejeon 34141, Korea.,Energy & Environmental Research Center (EERC), KAIST, Daejeon 34141, Korea
| | - Jieun Moon
- Graduate School of Nanoscience and Technology, KAIST, Daejeon 34141, Korea. .,KI for Health Science and Technology (KIHST), KAIST, Daejeon 34141, Korea
| | - Hoomin Lee
- NanoBio High-Tech Materials Research Center, Department of Biological Engineering, Inha University, Incheon 22212, Korea.
| | - Sungjun Koh
- Department of Chemical and Biomolecular Engineering, Korea Advanced Institute of Science and Technology (KAIST), Daejeon 34141, Korea. .,KAIST Institute for the Nanocentury (KINC), KAIST, Daejeon 34141, Korea.,Energy & Environmental Research Center (EERC), KAIST, Daejeon 34141, Korea
| | - Gui-Min Kim
- Department of Chemical and Biomolecular Engineering, Korea Advanced Institute of Science and Technology (KAIST), Daejeon 34141, Korea. .,KAIST Institute for the Nanocentury (KINC), KAIST, Daejeon 34141, Korea.,Energy & Environmental Research Center (EERC), KAIST, Daejeon 34141, Korea
| | - Laure Gauthé
- Department of Chemical and Biomolecular Engineering, Korea Advanced Institute of Science and Technology (KAIST), Daejeon 34141, Korea. .,KAIST Institute for the Nanocentury (KINC), KAIST, Daejeon 34141, Korea.,Energy & Environmental Research Center (EERC), KAIST, Daejeon 34141, Korea
| | - Francesco Stellacci
- Institute of Materials Science & Engineering, École Polytechnique Fédérale de Lausanne (EPFL), Lausanne 1015, Switzerland
| | - Yun Suk Huh
- NanoBio High-Tech Materials Research Center, Department of Biological Engineering, Inha University, Incheon 22212, Korea.
| | - Pilhan Kim
- Graduate School of Nanoscience and Technology, KAIST, Daejeon 34141, Korea. .,KI for Health Science and Technology (KIHST), KAIST, Daejeon 34141, Korea.,Graduate School of Medical Science and Engineering, KAIST, Daejeon 34141, Korea
| | - Doh C Lee
- Department of Chemical and Biomolecular Engineering, Korea Advanced Institute of Science and Technology (KAIST), Daejeon 34141, Korea. .,KAIST Institute for the Nanocentury (KINC), KAIST, Daejeon 34141, Korea.,Energy & Environmental Research Center (EERC), KAIST, Daejeon 34141, Korea
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