Highly sensitive voltammetric determination of kanamycin based on aptamer sensor for signal amplification

2016 ◽  
Vol 8 (16) ◽  
pp. 3366-3372 ◽  
Author(s):  
Hai-Yan Song ◽  
Tian-Fang Kang ◽  
Na-Na Li ◽  
Li-Ping Lu ◽  
Shui-Yuan Cheng
Keyword(s):  
Horseradish Peroxidase ◽  
Signal Amplification ◽  
Voltammetric Determination ◽  
Complementary Dna ◽  
Highly Sensitive ◽  
Aptamer Sensor

In this paper, a novel aptamer sensor for kanamycin was prepared by using a complementary DNA (cDNA) strand of kanamycin aptamer as sensor and horseradish peroxidase (HRP) as a biocatalyst for signal amplification.

A simple and effective strategy based on sodium gallate-exfoliated graphene for the simultaneous voltammetric determination of guaiacol and vanillin

2019 ◽  
Vol 11 (32) ◽  
pp. 4099-4105
Author(s):  
Chenchen Li ◽  
Ju Fu ◽  
Xiaohong Tan ◽  
Xinjian Song ◽  
Qunfang Li
Keyword(s):  
Simultaneous Determination ◽  
Voltammetric Determination ◽  
Effective Strategy ◽  
Exfoliated Graphene ◽  
Highly Sensitive ◽  
Simultaneous Voltammetric Determination

A highly sensitive graphene-based sensor for the simultaneous determination of guaiacol and vanillin was constructed simply and effectively.

A QCM Immunosensor for Rapid Determination of Ractopamine in Food Based on Enzyme-AuNPs for Signal Amplification and Magnetic β-Cyclodextrins for Extraction

2015 ◽  
Vol 738-739 ◽  
pp. 56-60
Author(s):  
Shu Xian Chen ◽  
Jing Liu ◽  
Dao Dong Pan ◽  
Ning Gan
Keyword(s):  
Signal Amplification ◽  
Rapid Determination ◽  
Screening Method ◽  
High Sensitivity ◽  
The Novel ◽  
Highly Sensitive ◽  
Reliable Quantification ◽  
Highly Sensitive Detection ◽  
Amplification Strategy

An enzyme amplified immunosensor for highly sensitive detection of Ractopamine (RAC) in foodstuff was developed based on quartz crystal microbalance (QCM). The high sensitivity was achieved by enzyme-AuNPs signal amplification strategy and magnetic β-cyclodextrins (β-CD) enrichment capacity. The novel QCM immunosensor which combines with the advantages of high selectivity of immunoassays and the high sensitivity of QCM has been developed for the determination of trace residues of RAC in food production. Under optimum conditions, the differences in the frequencies (∆f) of the QCM were proportional to the concentration of RAC over the range from 0.01 to 10 ng mL-1. The minimal detection limit was 0.01 ng mL-1. Due to its high sensitivity, acceptable stability and good selectivity, the immunosensor realized reliable quantification of RAC in real foodstuff. The proposed project has the potential to become a successful on-site screening method in food safety.

Reduced graphene oxide/platinum nanoparticles/nafion nanocomposite as a novel 2D electrochemical sensor for voltammetric determination of aliskiren

2017 ◽  
Vol 41 (24) ◽  
pp. 15320-15326 ◽  
Author(s):  
Ali Kemal Ateş ◽  
Engin Er ◽  
Hüseyin Çelikkan ◽  
Nevin Erk
Keyword(s):  
Graphene Oxide ◽  
Electrochemical Sensor ◽  
Reduced Graphene Oxide ◽  
Platinum Nanoparticles ◽  
Biological Samples ◽  
Voltammetric Determination ◽  
Renin Inhibitors ◽  
Reduced Graphene ◽  
Highly Sensitive

A highly sensitive and selective 2D electrochemical sensor based on an rGO/PtNPs/NFN nanocomposite was developed for routine detection of renin inhibitors such as aliskiren in biological samples.

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