Molecular Imprinted Based Quartz Crystal Microbalance Nanosensors for Mercury Detection

Abstract

Mercury(II) ions are emerging as a result of more human activity, especially coal‐fired power plants, industrial processes, waste incineration plants, and mining. The mercury found in different forms after spreading around diffuses the nature of other living things. Although the damage to health is not yet clear, it is obvious that it is the cause of many diseases. This work detects the problem of mercury(II) ions, one of the active pollutants in wastewater. For this purpose, it is possible to detect the smallest amount of mercury(II) ions by means of the mercury(II) ions suppressed quartz crystal microbalance nanosensor developed. Zinc(II) and cadmium(II) ions are chosen as competitor elements. Developed nanosensor technology is known as the ideal method in the laboratory environment to detect mercury(II) ions from wastewater because of its low cost and precise result orientation. The range of linearity and the limit of detection are measured as 0.25 × 10 −9 –50 × 10 −9 m . The detection limit is found to be 0.21 × 10 −9 m . The mercury(II) ions imprinted nanosensors prepared according to the obtained experimental findings show high selectivity and sensitivity to detect mercury(II) ions from wastewater.

Detection of amoxicillin residues in egg extract with a molecularly imprinted polymer on gold microchip using surface plasmon resonance and quartz crystal microbalance methods

“…3.2.3 Selectivity studies of AMOX imprinted SPR and QCM sensors. Selectivity study, which is known as the ability to detect the target in the sensing system, is one of the most important parameters of molecular imprinting (Çimen et al, 2018;Hüseynli et al, 2019). Selectivity studies were made by β-lactam antibiotics CEP and AMP against AMOX, and the results are shown in Figure 4.…”

Polymer-Based Membranes and Composites for Safe, Potable, and Usable Water: A Survey of Recent Advances

“…Moreover, polymers have gained prominence in the artificial sensor field with the goal of mimicking natural sense organs because they are known to exhibit improved selectivity and rapid measurements when classical sensor materials are replaced with polymeric systems involving nanotechnology [86]. For example, a previous report by Hüseynli et al [87] described a molecularly imprinted quartz crystal microbalance nanosensor for Hg ions detection in wastewater. By benefiting from the concept of polymer memory, the report demonstrated the capability to combine the advantages of quartz crystal microbalance (QCM) and a molecular imprinted polymeric system to develop a very selective, cost effective, simple, and high resolution mass sensing system that detects the minutest mass change of the quartz crystal surface by measuring the changes in resonance frequency in real-time.…”

“…Then Hg (II) ions were imprinted onto the poly (hydroxyethyl methacrylate-N-metacryloyl-(l)-cysteine methyl ester (pHEMAC) film using a very cheap but effective method of molecular imprinting. The authors argued that the sensor developed showed a detection limit range of 0.21 × 10 -9 m, which they posited demonstrates better cost-effective fabrication, improved response time, and better sensitivity to Hg (II) detection than the well-known techniques of atomic absorption, emission, and mass spectroscopies currently employed [88], even though these techniques afford better selectivity and sensitivity, they, however, present high-cost implications and laborious methodologies [87].…”

“…The chemical formula of the complexed polymeric system (MAC) with Hg (II)[87].Copyright©2019, reproduced with permission from John Wiley & Sons, Inc…”

Surface Plasmon Resonance Nanosensors for Detecting Amoxicillin in Milk Samples with Amoxicillin Imprinted Poly(hydroxyethyl methacrylate‐N‐methacryloyl‐(L)‐ glutamic acid)

“…Sensors are an analytical device that converts a measurable signal directly proportional to chemical concentrations with the physical converter suitable for biological active elements. Sensors are used in different areas such as public health, environmental activities and food safety . Amoxicillin imprinted polymeric film and nanoparticles consisting of poly(hydroxyethyl methacrylate‐N‐methacryloyl‐(L)‐glutamic acid) poly(HEMAGA) were prepared for the determination of amoxicillin in the milk samples.…”