Synthesis of a CdS-decorated Eu-MOF nanocomposite for the construction of a self-powered photoelectrochemical aptasensor

Abstract

A CdS/Eu-MOF composite with enhanced photoelectrochemical (PEC) performance was synthesized and coupled with an aptamer to construct a PEC sensor for ampicillin detection.

Recent Advances in Aptamer Sensors

“…Another technique is based on the increase in charge transfer resistance via the impedance technique [174]. Therefore, an electrochemical aptasensor was provided for the detection of several targets, such as ampicillin (AMP), avian influenza virus (H5N1), carbohydrate antigen 125, Pb 2+ , lysozymes, insulin, thrombin, CD44, vanillin, circulating human MDA-MB-231 breast cancer cells, bisphenol A, furaneol, and Hg 2+ , among others [8,46,[175][176][177][178][179][180][181][182][183][184][185][186][187][188][189].…”

Metal−Organic Frameworks for Liquid Phase Applications

“…This was attributed to the size exclusion of SO 4 2− and PO 4 3− being unable to fit into the framework channels. [277] Similar anion size-based intensity enhancement was observed in Zn-and Cd-MOFs containing 4,4′-bipyridine (bipy) and p-aminobenzoatein Fe 3+ , Hg 2+ and Cr 3+ FSOF (AIE) [268] Fe 3+ in water Cu-MOFs [269] Fe 3+ in water Eu-MOF/EDTA-NiAl-CLDH-M motor [270] Fe 3+ in water Tb-HIAAC [271] Fe 3+ in water Zn-DTA and Cd-DTA [272] Hg 2+ RuUiO-67 [273] Al 3+ and Lysine in HEPES buffer Cd-TCOOH [ Sulfonamide antibiotics FCS-1 [307] Nitrofuran, nitroimidazole, chloramphenicol, sulfonamide, and quinoline antibiotics TMPyPE@bio-MOF-1 [308] Nitro explosives and antibiotics in water Methyl red (MR) isomers (ortho, meta, and para) in ethanol MIL-100(Al) [310] Hippuric acid in urine MIL-121 [311] Polycyclic aromatic hydrocarbons Fe 3 O 4 @COF-(TpBD) [312] Mycotoxin ( Phenols and anilines in water LVMOF-1 [319] Enantioselective sensing (proline) S(R)-ZIF-78 h [320] Urea in human body fluids Ni-MIL-77 [321] Solvent molecules PU-1 and PU-2 [322] Bilirubin in human biofluids 1-NH 2 @THB [323] Glucose in blood PCN-222(Fe) [324] PhCHO and Fe 2+ in DMF Cd 0.5 (TBC)] n [325] Cardiac troponin I (cTn) in human bio-fluids Mn-MOF-PVC [326] o-and p-TCBQ isomers Tb@UiO-66-(COOH) 2 NH 2 [327] Pyrophosphate anion and antibiotics in water ZTMOF-1 [328] Trichloroacetic Adrenaline in human serum ZIF-67/NC/3DG [334] Chlorpyrifos in water and food samples Tb-MOF@PDDA-aggregated-AuNP [335] Tyrosine Ampicillin-binding aptamer in water (CdS/Eu-MOF) [343] Histamine and histidine in red wine and urine Cu-MOFs [344] n-methylformamide in urine and methylglyoxal in serum Tb 1− x Ybx@Cu-Hcbpp [345] Macrophage cells MOF-1114(Yb) and MOF-1140(Yb) [346] Nitrobenzene Mandelic acid, 1,2-cyclohexanediamine, 1-phenyleth...…”

“…Anthocyanins from blackberries and methyl viologen in water ( Phenols and anilines in water LVMOF-1 [319] Enantioselective sensing (proline) S(R)-ZIF-78 h [320] Urea in human body fluids Ni-MIL-77 [321] Solvent molecules PU-1 and PU-2 [322] Bilirubin in human biofluids 1-NH 2 @THB [323] Glucose in blood PCN-222(Fe) [324] PhCHO and Fe 2+ in DMF Cd 0.5 (TBC)] n [325] Cardiac troponin I (cTn) in human bio-fluids Mn-MOF-PVC [326] o-and p-TCBQ isomers Tb@UiO-66-(COOH) 2 NH 2 [327] Pyrophosphate anion and antibiotics in water ZTMOF-1 [328] Trichloroacetic acid in human urine [333] Adrenaline in human serum ZIF-67/NC/3DG [334] Chlorpyrifos in water and food samples Tb-MOF@PDDA-aggregated-AuNP [335] Tyrosine Ampicillin-binding aptamer in water (CdS/Eu-MOF) [343] Histamine and histidine in red wine and urine Cu-MOFs [344] n-methylformamide in urine and methylglyoxal in serum Tb 1− x Ybx@Cu-Hcbpp [345] Macrophage cells MOF-1114(Yb) and MOF-1140(Yb) [346] Nitrobenzene [351] (exp./DFT)…”

A Comprehensive Overview on Advanced Sensing Applications of Functional Metal Organic Frameworks (MOFs)

“…Afterwards, a self-fueled PEC aptasensor displaying a particular photocurrent response to AMP (ampicillin) was assembled by immobilising AMP-binding aptamer onto the CdS/Eu-MOF modified electrode as a recognition element. [113] Cao et al synthesised a hierarchically porous Cu-BTC/g-C 3 N 4 nanosheet composite material and constructed a highly potential photoelectrochemical sensor based on the MOF. As the visible light strikes, the Cu metal centre will coordinate with the added glyphosate to yield Cuglyphosate complexes, resulting in the improved steric hindrance of electron transfer and finally resulted in a visible reduction in photocurrent.…”