Acute toxicity assessment of polyaniline/Ag nanoparticles/graphene oxide quantum dots on Cypridopsis vidua and Artemia salina.
Acute toxicity assessment of polyaniline/Ag nanoparticles/graphene oxide quantum dots on Cypridopsis vidua and Artemia salina.
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DOI：
10.1038/s41598-021-84903-5
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发表时间：
2021-03-05
影响因子：
4.6
通讯作者：
Ebrahim S
中科院分区：
文献类型：
--
作者：
Shokry A;Khalil M;Ibrahim H;Soliman M;Ebrahim S
纳米毒理学被认为是新兴的主题之一。研究了聚苯胺（PANI）/2-丙烯酰胺基-2-甲基丙磺酸（AMPSA）包覆的银纳米粒子（NPs）/氧化石墨烯（GO）量子点（QDs）纳米复合材料（PANI/Ag（AMPSA）/GO QDs NC）作为纳米吸附剂对水中有毒六价铬（Cr（VI））离子的吸附性能。以卤虫（Artemia salina）和淡水介形虫（Cypridopsis vidua）幼虫为试验材料，进行48 h的急性毒性试验。在24和48 h进行测量，重复3次。在这些微生物暴露后，测定NC的50%有效浓度（EC 50）值。根据光学显微镜的结果，发现两种实验生物都摄入了NC。在介形类动物毒性试验中，NC仅在250 mg/L时对介形类动物有较强的毒性作用，作用48 h的EC 50值为157.6 ± 6.4 mg/L。卤虫的敏感性低于介形类，48 h的EC 50值为476 ± 25.1 mg/L。这些结果表明PANI/Ag（AMPSA）/GO QD NC对两种研究的生物体都具有低毒性。
Nanotoxicology is argued and considered one of the emerging topics. In this study, polyaniline (PANI)/2-acrylamido-2-methylpropanesulfonic acid (AMPSA) capped silver nanoparticles (NPs)/graphene oxide (GO) quantum dots (QDs) nanocomposite (PANI/Ag (AMPSA)/GO QDs NC) as a nanoadsorbent has a potential for removal of toxic hexavalent chromium (Cr(VI)) ions from water. The acute toxicity of this NC was evaluated on Artemia salina and freshwater Ostracods (Cypridopsis vidua) larvae for 48 h. The measurements were made at 24 and 48 h with 3 repetitions. The 50% effective concentration (EC50) values of the NC were determined after the exposure of these organisms. According to the results of the optical microscope, it was found that both experimental organisms intake the NC. In the toxicity results of Ostracods, the NC had a highly toxic effect only at 250 mg/L after 48 h and the EC50 value was 157.6 ± 6.4 mg/L. For Artemia salina individuals, it was noted that they were less sensitive than the Ostracods and EC50 value was 476 ± 25.1 mg/L after 48 h. These results indicated that PANI/Ag (AMPSA)/GO QDs NC has low toxicity towards both investigated organisms.
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