Electrochemical biosensors in food safety: Challenges and perspectives

A Curulli - Molecules, 2021 - mdpi.com
Safety and quality are key issues for the food industry. Consequently, there is growing
demand to preserve the food chain and products against substances toxic, harmful to human …

Recent advances in DNA walker machines and their applications coupled with signal amplification strategies: A critical review

M Xu, D Tang - Analytica Chimica Acta, 2021 - Elsevier
DNA walkers, a type of dynamic nanomachines, have become the subject of burgeoning
research in the field of biology. These walkers are powered by driving forces based on …

Near-Infrared Light Controllable DNA Walker Driven by Endogenous Adenosine Triphosphate for in Situ Spatiotemporal Imaging of Intracellular MicroRNA

M Ye, Y Kong, C Zhang, Y Lv, S Cheng, D Hou… - ACS nano, 2021 - ACS Publications
As a powerful signal amplification tool, the DNA walker has been widely applied to detect
rare microRNA (miRNA) in vivo. Despite the significant advances, a near-infrared (NIR) light …

Self-Assembled DNA Nanoflowers Triggered by a DNA Walker for Highly Sensitive Electrochemical Detection of Staphylococcus aureus

R Cai, S Zhang, L Chen, M Li, Y Zhang… - ACS Applied Materials …, 2021 - ACS Publications
With the development of DNA nanotechnology, DNA has been widely used to construct a
variety of nanomachines. Among them, a DNA walker is a unique nanomachine that can …

Rational Engineering of the DNA Walker Amplification Strategy by Using a Au@Ti3C2@PEI-Ru(dcbpy)32+ Nanocomposite Biosensor for Detection of the SARS …

B Yao, J Zhang, Z Fan, Y Ding, B Zhou… - … Applied Materials & …, 2021 - ACS Publications
The detection of the severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) is
crucial for preventing and controlling infectious diseases and disease treatment. In this work …

Sensitive sandwich-type electrochemical SARS-CoV‑2 nucleocapsid protein immunosensor

C Karaman, BB Yola, O Karaman, N Atar, İ Polat… - Microchimica Acta, 2021 - Springer
A sensitive and fast sandwich-type electrochemical SARS-CoV‑2 (COVID-19) nucleocapsid
protein immunosensor was prepared based on bismuth tungstate/bismuth sulfide composite …

Flap endonuclease 1-assisted DNA walkers for sensitively and specifically sensing ctDNAs

X Cheng, Y Bao, S Liang, B Li, Y Liu, H Wu… - Analytical …, 2021 - ACS Publications
DNA walkers have shown superior performance in biosensing due to their programmability
to design molecular walking behaviors with specific responses to different biological targets …

Graphene oxide quantum dots based nanotree illuminates AFB1: Dual signal amplified aptasensor detection AFB1

Q Wang, F Zhao, Q Yang, W Wu - Sensors and Actuators B: Chemical, 2021 - Elsevier
Abstract Aflatoxin B 1 (AFB 1) is the most toxic metabolite of mycotoxins and constantly
contaminates food crops, which seriously endangers human health. Therefore, it is essential …

A dual-potential ratiometric electrochemiluminescence biosensor based on Au@ CDs nanoflowers, Au@ luminol nanoparticles and an enzyme-free DNA …

L Wang, P Liu, Z Liu, H Cao, S Ye, K Zhao… - Sensors and Actuators B …, 2021 - Elsevier
Herein, an amplified electrochemiluminescence (ECL) ratiometric biosensor for p53 DNA
sequence assay was described based on gold@ carbon dots nanoflowers (Au@ CDs) …

A zero-background fluorescent aptasensor for ultrasensitive detection of pesticides based on magnetic three-dimensional DNA walker and poly (T)-templated copper …

Y Zhao, Y Wang, R Yang, H Zhang, Y Zhao… - Sensors and Actuators B …, 2021 - Elsevier
A zero-background fluorescent aptasensor for the ultrasensitive detection of pesticides has
been successfully constructed, using poly (T) stabilized copper nanoparticles (CuNPs) as a …