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- W4313340092 abstract "Paraquat (PQ) is an herbicide which has brought some health problems through the production of reactive oxygen species. The increasing interest in the novel formulation of agrochemicals has been aiming to provide safety for non-target organisms. Chitosan is a well-known non-toxic polymer, commonly used in preparing particles via ionotropic gelation. In this study, we prepared PQ nanoparticles (PQNPs) and evaluated their toxicity in vivo and in vitro. PQNPs were prepared and characterized in two forms, with and without the utilization of chitosan. Relative cell survival of PQNPs were studied against bulk PQ in HEK-293. Also, the acute lung injury of PQNP was assessed against treatment with acetylcysteine. Total antioxidant capacity (TAC), lipid peroxidation (LPO), total thiol groups (TTG), and hydroxyproline, along with histological changes were assessed in the lungs. The size, zeta potential, and polydispersity index of the optimum particles were about 157.7 ± 7.03, 22.25 ± 4.52, and 0.701, respectively. The encapsulation efficiency was 65.11 ± 10.45, and the loading percent of PQ was 58.57 ± 2.37. PQNPs showed an initial burst of PQ release followed by a zero-degree pattern. PQNPs displayed lower cell cytotoxicity compared to bulk PQ. LPO, TAC, TTG, and hydroxyproline levels in lungs generally showed more satisfying status in PQNPQs as well. The levels of oxidative status markers indicate lower oxidative damage in lungs and a more desirable response to acetylcysteine treatment, in line with histological changes. PQ loaded in chitosan-alginate particles offers safer characteristics compared with bulk PQ." @default.
- W4313340092 created "2023-01-06" @default.
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- W4313340092 date "2023-01-01" @default.
- W4313340092 modified "2023-09-26" @default.
- W4313340092 title "Is nanoparaquat safer than bulk paraquat? An in vitro and in vivo evaluation" @default.
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- W4313340092 doi "https://doi.org/10.1016/j.tox.2022.153398" @default.
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