NIR-accelerated cascade reaction for degradation of organophosphorus compounds by Au/PTE/ZIF-8: cooperative effect and mechanism
文献类型： 外文期刊
作者： Wang, Fang 1 ; Ouyang, Yi 2 ; Zhou, Pengfei 2 ; Zhang, Yan 2 ; Gao, Renjun 1 ; Eser, Bekir Engin 2 ; Guo, Zheng 2 ;
作者机构： 1.Jilin Univ, Sch Life Sci, Key Lab Mol Enzymol & Engn, Minist Educ, Changchun 130021, Peoples R China
2.Aarhus Univ, Fac Tech Sci, Dept Biol & Chem Engn, DK-8000 Aarhus, Denmark
3.Sericultural & Agrifood Res Inst, Guangdong Acad Agr Sci, Key Lab Funct Foods, Guangdong Key Lab Agr Prod Proc,Minist Agr & Rural, Guangzhou 510610, Peoples R China
期刊名称：CATALYSIS SCIENCE & TECHNOLOGY （ 影响因子：5.0； 五年影响因子：5.4 ）
ISSN： 2044-4753
年卷期： 2024 年
页码：
收录情况： SCI
摘要： Herein, we designed a NIR (near-infrared)-responsive multifunctional nanoreactor that can be used for precise and immediate regulation of chemoenzymatic degradation of organophosphates (OPs). The thermophilic phosphotriesterases (PTEs) and gold nanoparticles (AuNPs) were encapsulated in the ZIF-8 structure yielding an Au/PTE/ZIF-8 nanocomposite, which can be modulated by NIR as a result of the photothermal effect of AuNPs. The Au/PTE/ZIF-8 nanoreactor demonstrated excellent performance in mediating cascade reactions from enzymatic hydrolysis of OPs (>90% conversion in 10 min) to the subsequent reduction of the resulting 4-nitrophenol (4-NP) into 4-aminophenol (4-AP) by NaBH4 (>90% yield of 4-AP in 30 min). An immediate light-to-heat conversion when NIR was applied to Au/PTE/ZIF-8 at room temperature enables a 2-fold increase in the specific activity of phosphotriesterase from S. islandicus compared to thermo-heating at 70 degrees C. Based on the fact that there was a significant acceleration in 4-NP reduction by Au/PTE/ZIF-8, we proposed a plausible reaction mechanism (reaction pathway) suggesting that: 1) cooperative actions between Au, ZIF-8 and substrates take place by promoting polarization and cleavage of the B-H bond in NaBH4 for releasing hydride facilitating electron and hydride transfer to 4-NP; and 2) stabilizing the formation of intermediates or the transition state by coordination with a ZIF-8 delocalized network and/or Au.
- 相关文献
作者其他论文 更多>>
-
Regulating heat-induced fibrous whey protein-wheat starch composite emulsion gels as dysphagia food by preheating temperature: Insights from protein-starch interactions
作者：Wang, Zhiming;Zeng, Jiarui;Deng, Yuanyuan;Zhou, Pengfei;Li, Ping;Zhao, Zhihao;Liu, Guang;Zhang, Mingwei;Wang, Zhiming;Zhang, Mingwei;Zhang, Mingwei
关键词：Texture-modified; IDDSI test; Protein aggregates; Gel network structure; Starch digestibility
-
Impact of homogenization methods on the interfacial protein composition and stability of peanut oil body emulsion with sodium caseinate and maltodextrin
作者：Lin, Zihui;Zhou, Pengfei;Deng, Yuanyuan;Liu, Guang;Li, Ping;Zeng, Jiarui;Zhang, Yan;Tang, Xiaojun;Zhao, Zhihao;Zhang, Mingwei;Lin, Zihui
关键词：Peanut oil body; Homogenization methods; Emulsion; Interfacial protein; Stability
-
Cyclic trace enzymatic hydrolysis pretreatment enhances brown rice: Cooking and taste
作者：Deng, Yuanyuan;Zhou, Pengfei;Li, Ya;Li, Ping;Zhao, Zhihao;Wang, Jiajia;Zhong, Lihuang;Liu, Guang;Zhang, Mingwei;Zeng, Jiarui;Liu, Dong
关键词：Brown rice; Cyclic trace enzymatic hydrolysis; Quality improvement
-
Modulation of Gut Mycobiome and Serum Metabolome by a MUFA-Rich Diet in Sprague Dawley Rats Fed a High-Fructose, High-Fat Diet
作者：Zhao, Zhihao;Zhong, Lihuang;Zeng, Guangzhen;Liu, Songbin;Deng, Yuanyuan;Zhang, Yan;Tang, Xiaojun;Zhang, Mingwei;Wu, Jiajin
关键词：dietary fatty acids; oleic acid; high-fat; high-fructose diet; gut fungi; bile acid metabolism; CoA biosynthesis
-
A Genome-Wide Analysis of the VuR2R3-MYB Gene Family in Cowpea and Its Expression in Anthocyanin Accumulation
作者：Yang, Yi;Zhou, Xuan;Wu, Zengxiang;Shen, Zhuo;Li, Tinyao;Zhang, Yan;Yang, Yi;Zhou, Xuan;Wu, Zengxiang;Shen, Zhuo;Li, Tinyao;Zhang, Yan;Yu, Canye
关键词：cowpea; anthocyanin accumulation
-
Black rice stepwise fermentation enhances yogurt gel quality: Solidification rate, texture, LAB distribution and viability persistence
作者：Zeng, Jiarui;Wang, Zhiming;Liu, Guang;Jia, Xuchao;Zhou, Pengfei;Li, Ping;Zhao, Zhihao;Zhang, Yan;Tang, Xiaojun;Deng, Yuanyuan;Zhang, Mingwei;Liu, Dong
关键词：Black rice; Stepwise fermentation; Yogurt; LAB distribution; LAB viability; Texture quality
-
Ultrastable high internal phase Pickering emulsions stabilized by deamidated pea protein: Formation mechanisms and applications in 3D printing
作者：Luo, Lijuan;Li, Ping;Deng, Yuanyuan;Liu, Guang;Zhang, Yan;Tang, Xiaojun;Zhou, Pengfei;Zhao, Zhihao;Zhang, Mingwei;Luo, Lijuan
关键词：Deamidated pea protein isolate; High internal phase emulsions; 3D printing; Rheological properties; Lipid digestion
