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In this study, the dissipation and transformation of acetamiprid were investigated during the cowpea pickling process and the toxicity assessment software Ecological Structure Activity Relationship (ECOSAR) and the Toxicity Estimation Software Tool (T.E.S.T.) were used to predict the toxicity of acetamiprid and its transformation products (TPs). The results showed that acetamiprid was rapidly degraded during the pickling process with a degradation rate constant of 0.967 61 and a half-life of (34.95 ± 0.78) d. Four TPs from acetamiprid were found during cowpea pickling process. Among them, the oral lethal doses of TP1 and TP2 in rats were 358.17 and 385.7 mg/kg, respectively, which belonged to the “hazardous” category, and the developmental toxicity of TP1 and TP2 was significantly increased compared with that of acetamiprid. In addition, acetamiprid, TP1, TP2, and TP3 were detected in all real samples. The highest mass concentration of acetamiprid was 473.8 μg/L and the median concentration was 41.1 μg/L. These results reveal the degradation and biotransformation of acetamidine during pickling of cowpea and contribute to a better understanding of the possible health risks of pickling foods.

Purpose: Liver cancer is considered as the third leading cause of cancer-related deaths, with hepatocellular carcinoma (HCC) accounting for approximately 90% of liver cancers. Improving the treatment of HCC is a serious challenge today. The primary objective of this study was to construct SP94-Fe 3 O 4 @ICG&DOX nanoparticles and investigate their potential diagnosis and treatment effect benefits on HCC., Methods: Firstly, we synthesized and characterized SP94-Fe 3 O 4 @ICG&DOX nanoparticles and confirmed their in vitro release behavior, photothermal and photodynamic performance. Moreover, the in vivo imaging capability was also observed. Finally, the inhibitory effects on Hepa1-6 in vitro and in vivo were observed as well as biosafety., Results: SP94-Fe 3 O 4 @ICG&DOX nanoparticles have a size of ~22.1 nm, with an encapsulation efficiency of 45.2% for ICG and 42.7% for DOX, showing excellent in vivo MPI and fluorescence imaging capabilities for precise tumor localization, and synergistic photo-chemotherapy (pH- and thermal-sensitive drug release) against tumors under irradiation. With the assistance of a fluorescence molecular imaging system or MPI scanner, the location and contours of the tumor were clearly visible. Under a constant laser irradiation (808 nm, 0.6 W/cm 2 ) and a set concentration (50 µg/mL), the temperature of the solution could rapidly increase to ~45 °C, which could effectively kill the tumor cells. It could be effectively uptaken by HCC cells and significantly inhibit their proliferation under the laser irradiation (100% inhibition rate for HCC tumors). And most importantly, our nanoparticles exhibited favorable biocompatibility with normal tissues and cells., Conclusion: This versatile agent can serve as an intelligent and promising nanoplatform that integrates multiple accurate diagnoses, precise positioning of cancer tissue, and effective coordination with synergistic tumor photodynamic therapy., Competing Interests: The authors declare that they have no known competing financial interests or personal relationships that could influence the work reported in this study., (© 2024 Jin et al.)

To fabricate a novel stimuli-responsive system enabling controlled drug release and synergistic therapy, yolk-shell shaped bismuth sulfide modified with Au nanoparticles (Au-Bi 2 S 3 ) was prepared. The Au-Bi 2 S 3 nanomaterial with heterojunction structure exhibited excellent photothermal conversion efficiency and considerable free radicals yield under laser irradiation. The drug delivery capacity was confirmed by co-loading Berberine hydrochloride (BBR) and a phase change material 1-tetradecanol (PCM), which could be responsible for NIR light induced thermal controlled drug release. In vitro investigation demonstrated that Au-Bi 2 S 3 has cell selectivity, and with the assistance of the properties of Au-Bi 2 S 3 , the loaded drug could give full play to their cancer cell inhibition ability. Our work highlights the great potential of this nanoplatform which could deliver and control Berberine hydrochloride release as well as realize the synergistic anti-tumor strategy of photothermal therapy, photodynamic therapy and chemotherapy for tumor therapy., (© 2022 IOP Publishing Ltd.)