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An electrochemical investigation of glucose oxidase at a CdS nanoparticles modified electrode.
TLDR
The results showed that the fabricated biosensor was sensitive and stable in detecting glucose, indicating that CdS nanoparticle was a good candidate material for the immobilization of enzyme in glucose biosensor construction. Expand
A gold nanoparticle-based aptamer target binding readout for ATP assay
A gold nanoparticle-based detection strategy for ATP assays. In the absence of ATP, gold nanoparticles are not stabilized by the rigid duplex, thus they are readily aggregated by salt (solutionExpand
Combination of aptamer with gold nanoparticles for electrochemical signal amplification: application to sensitive detection of platelet-derived growth factor.
TLDR
It is found that this electrochemical system with "sandwich" structure and Au-NPs can significantly amplify the signal of electrochemical probe [Ru(NH(3))(5)Cl](2+) for PDGF detection, and thus increase the detection sensitivity significantly. Expand
Strategy to fabricate an electrochemical aptasensor: application to the assay of adenosine deaminase activity.
TLDR
A novel strategy for the fabrication of electrochemical aptasensor that is not required to be bound with the oligonucleotide, which may integrate the advantages of both the labeled and label-free strategies is proposed. Expand
Effect of Silver Nanoparticles on the Electron Transfer Reactivity and the Catalytic Activity of Myoglobin
TLDR
UV‐visible spectroscopy studies revealed that silver nanoparticles could induce a small change of the heme‐group environment of the protein; this contributed to the enhancement of the electron‐transfer reactivity and the catalytic activity. Expand
Highly sensitive electrochemical sensor for mercury(II) ions by using a mercury-specific oligonucleotide probe and gold nanoparticle-based amplification.
TLDR
It is expected this Au NPs-based Hg(2+) sensor will be a promising candidate for field detection of environmentally toxic mercury and exhibits excellent selectivity over a spectrum of interference metal ions. Expand
A hydrogen peroxide biosensor based on the bioelectrocatalysis of hemoglobin incorporated in a kieselgubr film
Abstract An unmediated hydrogen peroxide biosensor was prepared by co-immobilizing hemoglobin (Hb) with kieselgubr at a pyrolytic graphite electrode surface. Hb exhibited direct electrochemistry inExpand
Graphene quantum dots-based platform for the fabrication of electrochemical biosensors
Based on the strong interaction between single-stranded DNA (ssDNA) and graphene material, we have designed a simple but smart platform in this work to fabricate electrochemical biosensors by usingExpand
Detection of vascular endothelial growth factor based on rolling circle amplification as a means of signal enhancement in surface plasmon resonance.
TLDR
By replacing the sensing element, i.e., the aptamer of VEGF used in this work, more biosensors for sensitive detection of other biomarkers proteins can be fabricated based on the strategy proposed in this study. Expand
A new electrochemical method for the detection of cancer cells based on small molecule-linked DNA.
TLDR
The proposed cytosensor has been proven to linearly detect MCF-7 cells in a wide range from 10(2)-10(6) cell mL(-1) with a low detection limit of 67 cellmL(-1), which can also easily distinguish the folate receptor-negative normal cells, for instance, islet β cells. Expand
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