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学者姓名：蔡利琴
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Abstract ：
The improper disposal of waste high purity acetonitrile (HPA) not only causes environmental degradation but also poses significant risks to human health. One of the major challenges in the recycling and reuse of waste HPA is the removal of trace metal ions. In this study, we successfully fabricated a chitin/ZIF-67 composite hydrogel (CZ-n) by one pot in situ synthesis method for the purification and recovery of waste HPA for the first time. ZIF-67 was embedded into chitin through hydrogen bonding and coordination and provided more active adsorption sites, which resulted in CZ-3 with higher adsorption capacity than CZ-0. The maximum adsorption capacities of CZ-3 for Zn2+ and Ag+, as determined by fitting the Langmuir model, were 85.46 mg·g-1 and 91.26 mg·g-1, respectively. CZ-3 was able to effectively decrease the metal ion (Zn2+ and Ag+) concentration to below 10 ppb within 24 h through a monolayer adsorption process using chelation. Furthermore, the adsorption capacity remained satisfactory even in the presence of an equivalent concentration of NaCl, and CZ-3 exhibited remarkable reusability, with a removal rate exceeding 80 % after five cycles. Additionally, it also displayed notable biodegradability, with complete degradation observed within 60 days. These results indicated that CZ-3 could be a potential absorbent in the purification and recovery of waste HPA. © 2024 Elsevier B.V.
Keyword ：
Chitin Chitin Coordination reactions Coordination reactions Hydrogen bonds Hydrogen bonds
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| GB/T 7714 | Wang, Sen , Cai, Jingyu , Shi, Junjie et al. In situ synthesis of Chitin/ZIF-67 composite hydrogel for efficient recovery of high purity acetonitrile by removal of Zn2+ and Ag+ [J]. | Chemical Engineering Journal , 2024 , 499 . |
| MLA | Wang, Sen et al. "In situ synthesis of Chitin/ZIF-67 composite hydrogel for efficient recovery of high purity acetonitrile by removal of Zn2+ and Ag+" . | Chemical Engineering Journal 499 (2024) . |
| APA | Wang, Sen , Cai, Jingyu , Shi, Junjie , Shao, Xiang , Cai, Liqin , Hou, Linxi . In situ synthesis of Chitin/ZIF-67 composite hydrogel for efficient recovery of high purity acetonitrile by removal of Zn2+ and Ag+ . | Chemical Engineering Journal , 2024 , 499 . |
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Abstract ：
The improper disposal of waste high purity acetonitrile (HPA) not only causes environmental degradation but also poses significant risks to human health. One of the major challenges in the recycling and reuse of waste HPA is the removal of trace metal ions. In this study, we successfully fabricated a chitin/ZIF-67 composite hydrogel (CZ-n) by one pot in situ synthesis method for the purification and recovery of waste HPA for the first time. ZIF67 was embedded into chitin through hydrogen bonding and coordination and provided more active adsorption sites, which resulted in CZ-3 with higher adsorption capacity than CZ-0. The maximum adsorption capacities of CZ-3 for Zn2+ and Ag+, as determined by fitting the Langmuir model, were 85.46 mg & sdot;g-1 and 91.26 mg & sdot;g-1, respectively. CZ-3 was able to effectively decrease the metal ion (Zn2+ and Ag+) concentration to below 10 ppb within 24 h through a monolayer adsorption process using chelation. Furthermore, the adsorption capacity remained satisfactory even in the presence of an equivalent concentration of NaCl, and CZ-3 exhibited remarkable reusability, with a removal rate exceeding 80 % after five cycles. Additionally, it also displayed notable biodegradability, with complete degradation observed within 60 days. These results indicated that CZ-3 could be a potential absorbent in the purification and recovery of waste HPA.
Keyword ：
Adsorption Adsorption Chitin hydrogel Chitin hydrogel High-purity acetonitrile High-purity acetonitrile Trace metal ions Trace metal ions ZIF-67 ZIF-67
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| GB/T 7714 | Wang, Sen , Cai, Jingyu , Shi, Junjie et al. In situ synthesis of Chitin/ZIF-67 composite hydrogel for efficient recovery of high purity acetonitrile by removal of Zn2+and Ag+ [J]. | CHEMICAL ENGINEERING JOURNAL , 2024 , 499 . |
| MLA | Wang, Sen et al. "In situ synthesis of Chitin/ZIF-67 composite hydrogel for efficient recovery of high purity acetonitrile by removal of Zn2+and Ag+" . | CHEMICAL ENGINEERING JOURNAL 499 (2024) . |
| APA | Wang, Sen , Cai, Jingyu , Shi, Junjie , Shao, Xiang , Cai, Liqin , Hou, Linxi . In situ synthesis of Chitin/ZIF-67 composite hydrogel for efficient recovery of high purity acetonitrile by removal of Zn2+and Ag+ . | CHEMICAL ENGINEERING JOURNAL , 2024 , 499 . |
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Abstract ：
Triple negative breast cancer (TNBC) seriously endangers women's life and health due to its high invasion and mortality. Reactive oxygen species (ROS) mediated tumor cells apoptosis is considered an effective anticancer approach. Herein, we designed a natural active triple helix beta-Glucan (BFP) wrapped single walled carbon nanotubes (SWNTs)-loaded doxorubicin (DOX) self-assembly (BSD) via generating excess ROS to induce oxidative stress damage for TNBC therapy. BSD could directly consume glutathione (GSH) to promote ROS. In vitro results demonstrated that BSD exhibited obvious antitumor effects to breast cancer cells by promoting apoptosis. Un-targeted metabolomics under molecular level identified the specific metabolic targets and unveiled that BSD markedly disturbed multiple metabolic pathways, including purine metabolism, pentose phosphate pathway, glutathione metabolism pathways, amino sugar and nucleotide sugar metabolism and energy metabolism, led to the inhibition of DNA and RNA synthesis, the generation of ROS, the exacerbation of DNA damage, the disruption of cell membrane integrity and the decrease of ATP. In vitro and in vivo oxidative stress assays further verified that BSD significantly promoted intracellular oxidative stress and resulted in cell damage. This study provides theoretical basis for the development and screening of new drugs based on ROS therapy for TNBC.
Keyword ：
Metabolomics Metabolomics Reactive oxygen species Reactive oxygen species Triple helix beta-glucan Triple helix beta-glucan
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| GB/T 7714 | Cai, Liqin , Shao, Xiang , Mao, Xinghuai et al. Triple-helix β-glucan-based self-assemblies, synthesis, characterization and anticarcinogenic effect [J]. | INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES , 2024 , 286 . |
| MLA | Cai, Liqin et al. "Triple-helix β-glucan-based self-assemblies, synthesis, characterization and anticarcinogenic effect" . | INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES 286 (2024) . |
| APA | Cai, Liqin , Shao, Xiang , Mao, Xinghuai , Fu, Yaming , Yang, Qian . Triple-helix β-glucan-based self-assemblies, synthesis, characterization and anticarcinogenic effect . | INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES , 2024 , 286 . |
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