A Conjugated Polymer-Based Electrochemical DNA Sensor: Design and Application of a Multi-Functional and Water-Soluble Conjugated Polymer

2008 ◽  
Vol 29 (17) ◽  
pp. 1489-1494 ◽  
Author(s):  
Lanyong Zhang ◽  
Huan Sun ◽  
Di Li ◽  
Shiping Song ◽  
Chunhai Fan ◽  
...  
Keyword(s):  
Conjugated Polymer ◽  
Water Soluble ◽  
Sensor Design ◽  
Dna Sensor ◽  
Electrochemical Dna Sensor ◽  
Design And Application

scholarly journals Determination of L-Argininamide Based on Water-Soluble Fluorescent Conjugated Polymer-Aptamer

2013 ◽  
Vol 2013 ◽  
pp. 1-5 ◽  
Author(s):  
Hongliang Guan ◽  
Zhike He
Keyword(s):  
Conjugated Polymer ◽  
Specific Binding ◽  
Water Soluble ◽  
Dna Sensor ◽  
Label Free ◽  
Binding Reaction ◽  
Molecular Sensors ◽  
Free Dna ◽  
Highly Sensitive

Water-soluble fluorescent conjugated polymer is a promising material which could be used as an optical platform in highly sensitive molecular sensors. In this paper, a simple label-free DNA sensor, which consisted of a poly(3-alkoxy-4-methylthiophene) and an aptamer, was used to detect L-argininamide (L-Arm). Due to the specific binding reaction between L-Arm and its aptamer, the proposed method can easily determinate the L-Arm through the recovery of fluorescence without any modification. Other ions or similar molecules had little effect on the detection. Moreover, there was a linear relationship between fluorescence intensity and the concentration of L-Arm. The detection limit of L-Arm was as low as 4.7 nM.

Silver Nanoparticles Decorated Polyaniline Nanowires-Based Electrochemical DNA Sensor: Two-step Electrochemical Synthesis

2020 ◽  
Vol 167 (8) ◽  
pp. 087508 ◽  
Author(s):  
Luyen Thi Tran ◽  
Hoang Vinh Tran ◽  
Hue Thi Minh Dang ◽  
Chinh Dang Huynh ◽  
Tuan Anh Mai
Keyword(s):  
Silver Nanoparticles ◽  
Electrochemical Synthesis ◽  
Dna Sensor ◽  
Electrochemical Dna Sensor ◽  
Polyaniline Nanowires

Novel Water-Soluble Cyclodextrin-Based Conjugated Polymer for Selective Host–Guest Interactions of Cationic Surfactant CTAB and Reverse FRET with Rhodamine B Tagged Adamantyl Guest

2016 ◽  
Vol 49 (15) ◽  
pp. 5587-5598 ◽  
Author(s):  
Atul Kumar Dwivedi ◽  
Ravinder Singh ◽  
Ashutosh Singh ◽  
Kung-Hwa Wei ◽  
Chu-Ya Wu ◽  
...  
Keyword(s):  
Cationic Surfactant ◽  
Rhodamine B ◽  
Conjugated Polymer ◽  
Water Soluble

A new DNA sensor design for the simultaneous detection of HPV type 16 and 18 DNA

2018 ◽  
Vol 265 ◽  
pp. 514-521 ◽  
Author(s):  
Sakda Jampasa ◽  
Weena Siangproh ◽  
Rawiwan Laocharoensuk ◽  
Pattamawadee Yanatatsaneejit ◽  
Tirayut Vilaivan ◽  
...  
Keyword(s):  
Simultaneous Detection ◽  
Sensor Design ◽  
Dna Sensor

scholarly journals Electrochemical DNA Sensor Based on Carbon Black—Poly(Neutral Red) Composite for Detection of Oxidative DNA Damage

Sensors ◽  
2018 ◽  
Vol 18 (10) ◽  
pp. 3489 ◽  
Author(s):  
Yurii Kuzin ◽  
Dominika Kappo ◽  
Anna Porfireva ◽  
Dmitry Shurpik ◽  
Ivan Stoikov ◽  
...  
Keyword(s):  
Carbon Black ◽  
Oxidative Dna Damage ◽  
Electrochemical Impedance ◽  
Neutral Red ◽  
Redox Activity ◽  
Antitumor Drugs ◽  
Oxygen Species ◽  
Dna Sensor ◽  
Electrochemical Dna Sensor ◽  
Polymeric Dye

Voltammetric DNA sensor has been proposed on the platform of glassy carbon electrode covered with carbon black with adsorbed pillar[5]arene molecules. Electropolymerization of Neutral Red performed in the presence of native or oxidatively damaged DNA resulted in formation of hybrid material which activity depended on the DNA conditions. The assembling of the surface layer was confirmed by scanning electron microscopy and electrochemical impedance spectroscopy. The influence of DNA and pillar[5]arene on redox activity of polymeric dye was investigated and a significant increase of the peak currents was found for DNA damaged by reactive oxygen species generated by Cu2+/H2O2 mixture. Pillar[5]arene improves the electron exchange conditions and increases the response and its reproducibility. The applicability of the DNA sensor developed was shown on the example of ascorbic acid as antioxidant. It decreases the current in the concentration range from 1.0 μM to 1.0 mM. The possibility to detect antioxidant activity was qualitatively confirmed by testing tera infusion. The DNA sensor developed can find application in testing of carcinogenic species and searching for new antitumor drugs.

scholarly journals Sensitive electrochemical DNA sensor for the detection of HIV based on a polyaniline/graphene nanocomposite

2019 ◽  
Vol 5 (2) ◽  
pp. 313-319 ◽  
Author(s):  
Qiaojuan Gong ◽  
Haixia Han ◽  
Haiying Yang ◽  
Meiling Zhang ◽  
Xiaoling Sun ◽  
...  
Keyword(s):  
Dna Sensor ◽  
Electrochemical Dna Sensor ◽  
Graphene Nanocomposite
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