Electrochemical sensor based on molecularly imprinted membranes at platinum nanoparticles-modified electrode for determination of 17β-estradiol

Reduced graphene oxide-platinum nanoparticles composites based imprinting sensor for sensitively electrochemical analysis of 17β-estradiol

“…The LOD was calculated to be 0.002 lM (based on S/N = 3). As shown in Table 2, it was much lower than the reported methods [15,[39][40][41][42][43]. PtNPs, which were reported to have unique catalytic activities to E2 [43], facilitated the electrocatalysis process of estrogens.…”

Electrochemical sensor for the detection of estradiol based on electropolymerized molecularly imprinted polythioaniline film with signal amplification using gold nanoparticles

“…In another approach Yuan's group fabricated an MIP sensor for 17β-estradiol based on the electropolymerization of 6-mercaptonicotinic acid on Pt nanoparticles-modified electrode. The sensor was able to detect concentrations of 17β-estradiol as low as 1.6 × 10 −8 M [12].…”

Magnetic molecularly imprinted nanoparticles based on dendritic-grafting modification for determination of estrogens in plasma samples

“…These results were calculated using Eqs. (5)- (7). The selectivity parameters were measured at the initial concentration of 8 mM of each compound.…”

“…However, because of the low concentration of estrogens in blood plasma and the interference of complex matrix components, improving detecting sensitivity of estrogens is a major analytical challenge. In order to effectively solve this problem, several pretreatment methods using molecular imprinting technology for extraction of estrogens have been established [6][7][8].…”