Development of a label-free impedimetric aptasensor based on Zr-MOF and titaniom carbide nanosheets for detection of L-tryptophan

Cerium Zirconium Oxide-Decorated Reduced Graphene Oxide Nanocomposite for Low Potential Voltammetric Detection of N-Hydroxysuccinimide

“…The inset of Figure S3B shows the five different GCEs along with their anodic peak current. The DPV peak current for the fabricated sensor clearly demonstrated good reproducibility with a related standard deviation (RSD) of 2.76% . Under optimum conditions, the repeatability of the proposed sensor was examined through seven consecutive measurements, exhibiting good repeatability with a RSD of 1.37% (Figure S3C).…”

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.…”

Electrochemical Nanoaptasensor Based on Graphitic Carbon Nitride/Zirconium Dioxide/Multiwalled Carbon Nanotubes for Matrix Metalloproteinase-9 in Human Serum and Saliva

“…In recent years, the integration of nanomaterials has gained significant attention in biosensing due to the exceptional advantages offered by the nanomaterials, including nanoscale dimensions, large surface area, high tunability, and adsorption capabilities. − Moreover, a substantial amount of research has focused on synergizing the properties of two or more nanomaterials along with an effective functionalization of the nanomaterial biorecognition element via covalent or noncovalent interactions. − Furthermore, this not only stabilizes the sensing interface but also facilitates easy read-out and enables enhanced recognition of analytes, particularly important for detecting disease biomarkers and pathogens. , Graphitic carbon nitride (g-C 3 N 4 ) has emerged as a promising two-dimensional (2D) semiconductor with tunable bandgap energy, facilitating efficient charge transfer for electrochemical biosensors. , To harness the physiochemical properties to their fullest, exfoliating bulk g-C 3 N 4 into nanosheets is a common strategy, which significantly increases the surface area for immobilization of biorecognition elements. , These g-C 3 N 4 nanosheets (g-C 3 N 4 -NS) have gained significant attention in various biosensing applications, such as photoelectrochemical, electrochemiluminescence, fluorescence, colorimetric, and electrochemical. , Moreover, metal oxide nanoparticles (MNPs) known for their large surface area and catalytic capability have been reported to be employed in combination with other nanomaterials and have been found to elevate the performance of the biosensors . Zirconium dioxide nanoparticles (ZrO 2 NPs) exhibit great potential in biosensing, , although research on their applications is relatively scarce compared to other metal oxide nanoparticles.…”