Fabrication of an electrochemical aptasensor for the determination of sarcosine based on synthesized CuCo₂O₄ nanosheets

Abstract

The sarcosine (SRN) detection in body fluids is related to the diagnosis of prostate cancer. However, the development of SRN biosensors has been limited due to the low concentration of...

A 2D carbon nitride-based electrochemical aptasensor with reverse amplification for highly sensitive detection of okadaic acid in shellfish

“…Nanomaterials have been extensively used as carriers of sensitive materials to greatly improve the performance of biosensors due to their high specific surface area, abundant microporous structure, and outstanding structural stability. 17–22 Graphite-phase carbon nitride (g-C 3 N 4 ) is a two-dimensional layered material with the most stable allotrope with a small direct band gap (2.7 eV), unique structure, and physicochemical properties under ambient conditions. 23 As a result, it has been widely used as a carrier of sensitive materials in biosensor construction, which greatly eliminates the limitations of a narrow working area on the transducer surface to effectively broaden the quantification range, and simultaneously improve the detection performance of electrochemical biosensors.…”

Nanocomposite of Palladium Nanoparticles Anchored on Boron Nitride Nanosheets as a Sensor for Liver Treatment Drug Silymarin

“…Recently, efforts have been made to use these materials to produce nanocomposites for sensors, energy storage, and other purposes. − 2D-hexagonal BNNSs (2D-hBNNS) are mainly used for bioimaging and drug delivery systems in biomedical fields due to their important applications such as electronics, sensing, and catalysis. − Recently, the use of 2D-hBNNS to load metal nanoparticles (NPs) for various sensor applications has been investigated. As reported, the modified electrodes in electrochemical sensors with these materials have provided satisfactory selectivity and efficiency. − In addition, the introduction of supported NPs on BNNS can also improve the electrochemical proficiency of the electrocatalyst through heterogeneous binding of nanoparticles (NPs) on BNNS, which is one of the excellent catalysts due to the synergistic effect and electronic interaction between NPs and BNNS. Palladium NPs (PdNPs) can be mentioned among the most widely used NPs in electrode modification that has been demonstrated as a good support for the electrochemical sensors because of its stability, controllable size distribution, and large surface to volume ratio. , …”