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Novel spherical and homogeneous Alstonia Scholaris silver nanoparticles for dual applications: Detection of ultra-trace amounts of Cr(III) ions and MB discoloration sustained by 3-input AND gate
Chemical Engineering Science ( IF 4.1 ) Pub Date : 2024-08-28 , DOI: 10.1016/j.ces.2024.120667
Kritika S. Sharma , Kajal Panchal , Kaushalya Bhakar , Dinesh Kumar

This study unveils an effective method for detecting Cr(III) and MB dye discoloration using biosynthesized silver nanoparticles obtained from leaves of Alstonia Scholaris (AS-AgNPs). HR-TEM images showed that the mean diameter of AS-AgNPs increased from 14.68 to 37.05 nm after the interaction with Cr(III) ions. The AS-AgNPs show an impressive detection limit of 2.1 nM for Cr(III) and demonstrate high efficacy in MB discoloration of 91.27% in 12 min. The discoloration reaction fitted pseudo-first-order kinetics with the R2 value of 0.9634. When comparing the kinetics of MB discoloration by NaBH4 alone, and addition of AS-AgNPs to NaBH4 resulted in a 102 fold decrease in t1/2 and a 102 fold increase in k values. This is the first report to use spherical AS-AgNPs for dual applications, supported by 3-Input AND gate logic, and also highlights AS-AgNPs' potential application for real sample analysis.

中文翻译:


用于双重应用的新型球形和均相 Alstonia Scholaris 银纳米颗粒:检测超痕量 Cr(III) 离子和由 3 输入 AND 门维持的 MB 变色



本研究揭示了一种使用从 Alstonia Scholaris (AS-AgNPs) 叶片中获得的生物合成银纳米颗粒检测 Cr(III) 和 MB 染料变色的有效方法。HR-TEM 图像显示,与 Cr(III) 离子相互作用后,AS-AgNPs 的平均直径从 14.68 nm 增加到 37.05 nm。AS-AgNPs 对 Cr(III) 的检测限为 2.1 nM,并且在 12 分钟内表现出 91.27% 的 MB 变色高效。变色反应拟合了 R2 值为 0.9634 的准一级动力学。当比较单独 NaBH4 对 MB 变色的动力学时,以及向 NaBH4 中添加 AS-AgNPs 导致 t1/2 降低 102 倍,k 值增加 102 倍。这是第一份将球形 AS-AgNP 用于双应用的报告,由 3 输入 AND 门逻辑支持,还强调了 AS-AgNP 在真实样品分析中的潜在应用。
更新日期:2024-08-28
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