Composition and architecture-engineered Au–SnO2/GNs-SWCNTs nanocomposites as ultrasensitive and robust electrochemical sensor for antioxidant additives in foods

Development of a photoelectrochemical sensor for detection of TBHQ antioxidant based on LiTCNE-TiO2 composite under visible LED light

“…A detection limit (LD) of 100 nmol L −1 was determined using the equation LD = 3 σ bl / slope, where σ bl is the standard deviation of the blank response which is obtained from 10 replicate measurements of the blank solution and slope is the slope of the analytical curve. The linear range of response and limit of detection were analyzed in comparison to electrochemical sensors to TBHQ reported in the literature (Table 1) [37][38][39][40][41][42][43][44]. As can be seen, the LiTCNE/TiO 2 photoelectrochemical sensor shows a linear range of response about of three magnitude orders and a limit of detection of 100 nmol L − 1 , which is comparable to the best electrochemical sensors to TBHQ.…”

Nanomaterials towards fabrication of cholesterol biosensors: Key roles and design approaches

“…From the vast research literature in the area of nanomaterials, it is clear that each of the nanomaterial has its own advantages and therefore for many applications, it becomes quite important to involve synergistic properties of different nanomaterials (Ahmad et al, 2010;Wang et al, 2009). For designing a biosensor with high analytical performance, it is beneficial to incorporate multiple nanomaterials into the enzyme immobilization matrix (Du et al, 2014;Wu et al, 2007). Many reports show the use of nanomaterials in the form of composite materials for developing cholesterol biosensors.…”

Nanotechnological Methods of Antioxidant Characterization

“…Du et al (59) synthesized Au-SnO 2 /graphenes−single-walled carbon nanotubes (SWCNs) nanocomposite and fabricated a highly sensitive electrochemical sensor based on this nanocomposite-modified glassy carbon (GC) electrode. Researchers reported that Au/SnO 2 provides a catalytically active center for reactions between electrons on the electrode and redox species in solution, leading to the detection of tert-butylhydroquinone (TBHQ) which is an important antioxidant additive in the food industry.…”