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Xu P, Liu J, Yi Y, Cai Z, Yin Y, Cai W, Zhang J, Gong Z, Xiao Y. A dew-responsive pectin-based herbicide for enhanced photodynamic inactivation. Carbohydr Polym 2024; 336:122114. [PMID: 38670775 DOI: 10.1016/j.carbpol.2024.122114] [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: 01/11/2024] [Revised: 03/27/2024] [Accepted: 03/29/2024] [Indexed: 04/28/2024]
Abstract
5-aminolevulinic acid (5-ALA) has been fully demonstrated as a biodegradable, without resistance, and pollution-free pesticide. However, the lack of targeting and the poor adhesion result in a low utilization rate, limiting its practical application. Herein, a dew-responsive polymer pro-pesticide Pec-hyd-ALA was successfully synthesized by grafting 5-ALA onto the pectin (PEC) backbone via acid-sensitive acylhydrazone bonds. When the pro-pesticide is exposed to acid dew on plant surfaces at night, 5-ALA is released and subsequently converted to photosensitize (Protoporphyrin IX, PpIX)in plant cells, leading to its accumulation and promoting photodynamic inactivation (PDI). An inverted fluorescence microscope has verified the accumulation of tetrapyrrole in plant cells. In addition, the highly bio-adhesive PEC backbone effectively improved the wetting and retention of 5-ALA on leaves. The pot experiment also demonstrated the system's control effect on barnyard grass. This work provides a promising approach to improving the herbicidal efficacy of 5-ALA.
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Affiliation(s)
- Peiyu Xu
- School of Chemistry, Chemical Engineering and Life Science, Wuhan University of Technology, Wuhan 430070, PR China; Wuhan University of Technology Weihai Research Institute, Weihai 264300, Shandong, PR China
| | - Jing Liu
- Renmin Hospital of Wuhan University, Wuhan 430060, PR China
| | - Ying Yi
- School of Chemistry, Chemical Engineering and Life Science, Wuhan University of Technology, Wuhan 430070, PR China; Wuhan University of Technology Weihai Research Institute, Weihai 264300, Shandong, PR China
| | - Zhi Cai
- School of Life Science and Technology, Wuhan Polytechnic University, Wuhan 430023, PR China.
| | - Yihua Yin
- School of Chemistry, Chemical Engineering and Life Science, Wuhan University of Technology, Wuhan 430070, PR China; Wuhan University of Technology Weihai Research Institute, Weihai 264300, Shandong, PR China.
| | - Weiquan Cai
- School of Chemistry and Chemical Engineering, Guangzhou University, Guangzhou 510006, PR China
| | - Jingli Zhang
- School of Chemistry, Chemical Engineering and Life Science, Wuhan University of Technology, Wuhan 430070, PR China
| | - Zhixia Gong
- School of Chemistry, Chemical Engineering and Life Science, Wuhan University of Technology, Wuhan 430070, PR China; Wuhan University of Technology Weihai Research Institute, Weihai 264300, Shandong, PR China
| | - Yaqi Xiao
- School of Chemistry, Chemical Engineering and Life Science, Wuhan University of Technology, Wuhan 430070, PR China; Wuhan University of Technology Weihai Research Institute, Weihai 264300, Shandong, PR China
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Application of synergistic β-lactamase inhibitors and antibiotics in the treatment of wounds infected by superbugs. ARAB J CHEM 2022. [DOI: 10.1016/j.arabjc.2022.103936] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
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