High-sensitivity photo-electrochemical heterostructure of the cuprous oxide-metal organic framework for a dioctyl phthalate molecularly imprinted sensor

Abstract

This work designed a novel dioctyl phthalate (DOP) photoelectrochemical (PEC) sensor based on a molecularly imprinted polymer (MIP) modified Cu3(BTC)2@Cu2O heterostructure. In this work, a metal organic framework (MOF), Cu3(BTC)2,...

Endocrine disrupting chemicals in water and recent advances on their detection using electrochemical biosensors

“…PEC can produce responsive curves with a distinctive difference even in ultralow concentrations, which has been demonstrated in many studies. 162,163,166,167,193 Impedimetric measurement applies a certain potential to the working electrode to generate a current and calculates the resulting resistance or impedance as a final readout. Resistance can be expressed as the slope of the I-V curve according to Ohm's Law.…”

“…170 Ethylene glycol dimethacrylate (EGDMA) and azodiisobutyronitrile (AIBN) are common chemicals for a cross-linker and initiator, respectively. 158,161,165,166 There is an exception reported in Venkatesh et al, 111 where the cross-linking and activation were conducted in the presence of N,N-methylene-bisacrylamide and tetramethylethylenediamine (TEMED), respectively. Zhang et al 168 applied tetraethoxysilane (TEOS) as a special linkage reagent (see Fig.…”

“…Chemicals such as methanol/acetic acid, 156,158,159,161,165,[168][169][170]172 ethanol/acetic acid, 160,171 hydrochloric acid, 157,164 and sodium hydrate mixed with ethanol 173 are used to remove template molecules after the imprinted matrix was generated. For some photoelectrochemical MIPs, the template molecules are normally removed by water with high temperature annealing, 156 ethanol, 163 deionized water/ethanol, 166 and sodium hydrate. 167 3.2.4 Enzymatic and cyclodextrin-based receptors.…”

Application of Molecularly Imprinted Polymers in the Analysis of Waters and Wastewaters

“…A novel spectroelectrochemical sensor was also presented for the detection of dioctylphthalate (DOP) [153]. Firstly, a thin layer of Cu 2 O was prepared on the surface of indium tin oxide (ITO) by electropolymerization process, then a metal-organic framework (MOF), Cu 3 (BTC) 2 , benzene-1,3,5-tricarboxylate (BTC), was covered on Cu 2 O/ITO to form the heterostructure of Cu 3 (BTC) 2 @Cu 2 O/ITO.…”

Reusable and universal impedimetric sensing platform for the rapid and sensitive detection of pathogenic bacteria based on bacteria-imprinted polythiophene film

“…23 MIPs have many distinct advantages, such as easy preparation, being cost-efficient, and having long-term physical and chemical stability, which make them promising alternatives to natural antibodies. 24 Owing to these unique characteristics, MIPs have been integrated with various sensing platforms for detecting simple organic molecules, [25][26][27] and biomacromolecules like proteins, 28,29 viruses, 30 and bacteria. 31 However, we have to acknowledge that the imprinting of whole bacterial cells is still very challenging due to their large size and complex chemical composition, leading to increased difficulty in the complete removal of the template, and the generation of imprinted sites with good accessibility and recognition capability.…”