Electrochemical aptasensor based on gold modified thiol graphene as sensing platform and gold-palladium modified zirconium metal-organic frameworks nanozyme as signal enhancer for ultrasensitive detection of mercury ions was written by Wang, Yaoguang;Wang, Yingying;Wang, Fangzheng;Chi, Hong;Zhao, Guanhui;Zhang, Yong;Li, Tianduo;Wei, Qin. And the article was included in Journal of Colloid and Interface Science in 2022.Application of 13820-53-6 The following contents are mentioned in the article:
Gold modified thiol graphene (Au@HS-rGO) was prepared and applied as sensing platform for constructing the electrochem. aptasensor. While gold-palladium modified zirconium metal-organic frameworks (AuPd@UiO-67) nanozyme was employed as signal enhancer for detecting mercury ions (Hg2+) sensitively. Herein, gold nanoparticles (Au NPs) were modified on HS-rGO to form the thin Au@HS-rGO layer. Then the substrate strand (Apt1) was modified on the platform through Au-S bond. The signal strand (Apt2) was further decorated on the platform in the presence of Hg2+. Herein, the Apt2 was labeled with AuPd@UiO-67 nanozyme, which exhibited catalase-like properties to catalyze H2O2, thereby generating the elec. signal. With the concentration of Hg2+ increased, the amount of modified Apt2-AuPd@UiO-67 increased, leading to the rise of current response. Since the current responses were linear with concentration of Hg2+, the detection of Hg2+ can be achieved. Under the optimum conditions, the prepared electrochem. aptasensor exhibited wide linear range from 1.0 nmol/L to 1.0 mmol/L, along with a low detection limit of 0.16 nmol/L. Moreover, the electrochem. aptasensor showed excellent selectivity, reproducibility and stability, together with superior performance in actual water sample anal. Therefore, this proposed electrochem. aptasensor may have promising applications and provide references for environmental monitoring and management. This study involved multiple reactions and reactants, such as Sodium tetrachloropalladate(II) (cas: 13820-53-6Application of 13820-53-6).
Sodium tetrachloropalladate(II) (cas: 13820-53-6) belongs to organic chlorides. Organic chlorides can be used in production of: PVC, pesticides, chloromethane, teflon, insulators. Organochlorine compounds are lipophylic, meaning they are more soluble in fat than in water. This gives them a high tenancy to accumulate in the food chain (biomagnification).Application of 13820-53-6
Referemce:
Chloride – Wikipedia,
Chlorides – an overview | ScienceDirect Topics