Construction of sandwiched self-powered biosensor based on smart nanostructure and capacitor: Toward multiple signal amplification for thrombin detection

Polychlorinated Biphenyl Electrochemical Aptasensor Based on a Diamond–Gold Nanocomposite to Realize a Sub-Femtomolar Detection Limit

“… 13 Aptamers are single-strand DNA or RNA with high target affinities, unique conformations, and detailed three-dimensional structures, 14 providing a good alternative approach to sensitively and selectively identify target molecules by changing their structures to enhance the detection limit. 15 − 17 It was reported that the aptamers added in carbon nanotubes could importantly increase the detection limit to nM. 18 Also, Au-based biosensors with aptamers could realize the detection limit to pM 13 since Au electrodes had the advantages of high electrical conductivity, chemical stability, and easy attachment to aptamers.…”

Mini-Review: Recent Technologies of Electrode and System in the Enzymatic Biofuel Cell (EBFC)

“…Producing mesostructured support material needs to look at controlling uniform pore structure and pore size because the random size will cause underutilization of the support materials [60]. Development of new support materials needs to explore some of these factors to improve the ability to use supports in EBFC, namely electron transfer rate resulting from enzyme-support/electrode interaction [12], enzyme thickness, enzyme loading [15], enzyme conformation, and interfacial stability of the enzyme-support/electrode [3].…”

“…The Pt nanoparticle synthesized is located close to the enzyme, but the current difference produced without Pt is 1 mA/cm 2 . Wang et al [12] introduced the SnS2 nanoflower/Au nanoparticles as a support material for thrombin detection. The presence of SnS2 nanoflower/Au nanoparticles has shown that the resulting electrode has capacitor Immobilization of laccase enzyme (LAC) using the encapsulation technique through the highly porous and large surface area of the metal-organic frameworks (zeolitic imidazolate framework-8, ZIP-8) for both the anode and cathode was carried out by Li et al [3].…”

“…The Pt nanoparticle synthesized is located close to the enzyme, but the current difference produced without Pt is 1 mA/cm 2 . Wang et al [12] introduced the SnS 2 nanoflower/Au nanoparticles as a support material for thrombin detection. The presence of SnS 2 nanoflower/Au nanoparticles has shown that the resulting electrode has capacitor characteristics and produces very high sensitivity detection (18.4 times) compared to a standard electrode.…”

“…Detection of toxic pollutants can protect the environment from being exposed to the danger of molecule release at low concentrations [10]. In addition, the use of EBFC in medical devices is seen to bring advantages due to the small size of the EBFC [11], its flexibility, light weight, and easy portability [12], and more importantly, its sufficient usage at low power [13]. Making EBFCs for various uses is simple and low cost compared to other types of fuel cells.…”