Enhanced biosensing strategies using electrogenerated chemiluminescence: recent progress and future prospects

An overview of enhancement strategies for highly sensitive ECL-based sensing of bioanalytes enabling early detection of cancer.

A highly sensitive glutamic acid biosensor based on the determination of NADH enzymically generated by l-glutamic dehydrogenase

In this article, a sensitive and stereo-selective biosensor for l-glutamic acid (l-Glu) based on the electrochemiluminescence (ECL) of Ru(bpy)₃²⁺ has been designed by applying l-glutamic dehydrogenase (GLDH) for enzymatic generation of NADH in situ.

An electrochemiluminescence sensor with dual signal amplification of Ru(bpy)32+based on PtNPs and glucose dehydrogenase for diagnosis of gas gangrene

Gas gangrene is a bacterial infection that produces gas in tissues in gangrene.C. perfringenswith alpha-toxin plays a key role in gas gangrene. Detection ofC. perfringensis highly important in clinical diagnosis of gas gangrene.

Biosensors Incorporating Bimetallic Nanoparticles

This article presents a review of electrochemical bio-sensing for target analytes based on the use of electrocatalytic bimetallic nanoparticles (NPs), which can improve both the sensitivity and selectivity of biosensors. The review moves quickly from an introduction to the field of bio-sensing, to the importance of biosensors in today's society, the nature of the electrochemical methods employed and the attendant problems encountered. The role of electrocatalysts is introduced with reference to the three generations of biosensors. The contributions made by previous workers using bimetallic constructs, grouped by target analyte, are then examined in detail; following which, the synthesis and characterization of the catalytic particles is examined prior to a summary of the current state of endeavor. Finally, some perspectives for the future of bimetallic NPs in biosensors are given.

A ferrocene-switched electrochemiluminescence "off-on" strategy for the sensitive detection of cardiac troponin I based on target transduction and a DNA walking machine

A ferrocene-switched electrochemiluminescence "off-on" sensor is proposed on the basis of target transduction and a DNA walking machine for the sensitive detection of cardiac troponin I (cTnI). The proposed method offers high selectivity with a low detection limit of 0.016 pg mL(-1), and provides a universal platform for detecting a wide range of targets, including other proteins and DNAs, by changing the molecular recognition elements to the corresponding antibodies, aptamers or DNA probes.