A bio-chemical application of N-GQDs and g-C3N4 QDs sensitized TiO2 nanopillars for the quantitative detection of pcDNA3-HBV

Construction of SnO2/graphene-like g-C3N4with enhanced visible light photocatalytic activity

“…Therefore, using semiconductor-based photocatalysts for the degradation of organic pollutants is considered as a sustainable and prospective solution for wastewater purication. 1 Graphitic carbon nitride (g-C 3 N 4 ) is a promising heterogeneous metal-free, non-toxic semiconductor with narrow band gap, good thermal stability, high chemical stability and interesting electronic properties, 2,3 has been widely researched for catalysis-driven application, 4,5 electrochemical application, 6 bio-chemical application, 7 biosensor application 8 and so on. And yet, it is found that the layered stacking structure and small specic surface area of g-C 3 N 4 hinder the effective separation of photoinduced electron-hole pairs, thus made g-C 3 N 4 suffering from rapid recombination of photogenerated electron-hole pairs.…”

Host–Guest Recognition on 2D Graphitic Carbon Nitride for Nanosensing

“…An exfoliation method using mixtures of acids, such as a mixture of H 2 SO 4 -HNO 3 , has also been used to prepare g-C 3 N 4 nanosheets. [30] Bulk g-C 3 N 4 powder was placed in a ceramic container and heated at 500 °C for 2 h with a ramp rate of 2 °C/min. Then, the resulting powder was dissolved in a mixture of H 2 SO 4 and HNO 3 (1:3) and treated with intense ultrasound for 18 h.…”

“…[124] (Figure 9c, d) for the detection of pcDNA3hepatitis B virus (HBV). [30] Under the optimal conditions, the response of the PEC sensor is ssDNA as the recognition units (Figure 9i). [126] The sensor response was linearly related to concentration in the range of 10 pg•mL -1 to 20.0 ng•mL -1 , and the LOD was 2 pg•L -1 .…”

Graphitic carbon nitride-based nanocomposites and their biological applications: a review

“…Currently, a combination of two detection mechanisms, photoelectrochemical (PEC) biosensing, is used, which can verify the concentration of the analyte using both electrical and optical methods simultaneously. [54][55][56][57][58][59][60] 4.1.1 g-CN-based biosensors with electrochemiluminescence (ECL) properties. Electrochemiluminescence (ECL) or electrochemical chemiluminescence is the luminescence that occurs during an electrochemical reaction in solution.…”