Constructing a TiO₂/PDA core/shell nanorod array electrode as a highly sensitive and stable photoelectrochemical glucose biosensor

Abstract

Developing stable PEC glucose biosensors with high sensitivity and low detection limit is highly desirable in the biosensor field.

Enhancing the performance of photoelectrochemical glucose sensorviathe electron cloud bridge of Au in SrTiO3/PDA electrodes

“… 11 Polydopamine (PDA) is a synthetic biomimetic material that has excellent biocompatibility and a stable semiconducting polymer. 12 In PEC sensors, PDA plays an important role in immobilizing enzymes and transferring photoelectrons. 13 Therefore, the low biocompatibility and inefficient charge separation of SrTiO 3 can be effectively resolved by combining it with PDA.…”

A novel photoelectrochemical sensor based on SiNWs@PDA for efficient detection of myocardial infarction

“…The smallest radii suggest the smallest R CT at the interface, consistent with the highest photocurrent density. 41 The bare SiNW array shown in curve a has a R CT value of about 15.64 kohm. After PDA modification, the heterojunction shows a minimum R CT value of about 13.11 kohm.…”

“…The smallest radii suggest the smallest R CT at the interface, consistent with the highest photocurrent density. 41 Fig. 3…”

A Comprehensive Review on Core‐Shell Polymeric Particles for Enzyme Immobilization

“…Although most studies involve magnetic core‐shell particles, [73–75] interest in polymeric particles has increased in the last few years. Recently, a study was developed to detect glucose by photoelectrochemical biosensors formed by the enzyme glucose oxidase immobilized in a structure composed of a titanium dioxide core and a polydopamine shell [76] . In addition, core‐shell particles of carbon and polyaniline were identified as support for the immobilization of acetylcholine esterase and applied as a biosensor for insecticide detection [77] …”