Low-Dimension Nanomaterial-Based Sensing Matrices for Antibiotics Detection: A Mini Review

Abstract

Antibiotics, a kind of secondary metabolite with antipathogen effects as well as other properties, are produced by microorganisms (including bacterium, fungi, and actinomyces) or higher animals and plants during their lives. Furthermore, as a chemical, an antibiotic can disturb the developmental functions of other living cells. Moreover, it is impossible to avoid its pervasion into all kinds of environmental media via all kinds of methods, and it thus correspondingly becomes a trigger for environmental risks. As described above, antibiotics are presently deemed as a new type of pollution, with their content in media (for example, water, or food) as the focus. Due to their special qualities, nanomaterials, the most promising sensing material, can be adopted to produce sensors with extraordinary detection performance and good stability that can be applied to detection in complicated materials. For low-dimensional (LD) nanomaterials, the quantum size effect, and dielectric confinement effect are particularly strong. Therefore, they are most commonly applied in the detection of antibiotics. This article focuses on the influence of LD nanomaterials on antibiotics detection, summarizes the application of LD nanomaterials in antibiotics detection and the theorem of sensors in all kinds of antibiotics detection, illustrates the approaches to optimizing the sensitivity of sensors, such as mixture and modification, and also discusses the trend of the application of LD nanomaterials in antibiotics detection.

Preparation and characterization of α-Fe2O3/Fe3O4 heteroplasmon nanoparticles via the hydrolysis-combustion-calcination process of iron nitrate

“…Nanomaterial refers to materials that have at least one dimension in the nanometer size in a three-dimensional space or are composed of them as basic units [4,5]. When the size of materials reaches the nanometer level, nanomaterials will show novel characteristics different from traditional materials, including quantum tunnel [6], surface [7], dielectric confinement, quantum size, and volume effect [8]. Magnetic nanoparticles are a kind of nanomaterials.…”

Electrochemical Biosensing Interface Based on Carbon Dots-Fe3O4 Nanomaterial for the Determination of Escherichia coli O157:H7

“…Therefore, there is an urgent need to establish a sensitive, simple, and highly specific method for detecting E. coli O157: H7. At present, many different electrochemical sensors have been used in food safety due to their some advantages, such as high sensitivity, economy, and accuracy (Li et al, 2015b;Li et al, 2016;Dong et al, 2020). Therefore, electrochemical biosensors for the detection of E. coli O157:H7 have received extensive attention.…”