Target-triggered autonomous assembly of DNA polymer chains and its application in colorimetric nucleic acid detection

2016 ◽  
Vol 4 (19) ◽  
pp. 3191-3194 ◽  
Author(s):  
Jianyuan Dai ◽  
Hongfei He ◽  
Zhijuan Duan ◽  
Cuisong Zhou ◽  
Yuyin Long ◽  
...  
Keyword(s):  
Nucleic Acid ◽  
Self Assembly ◽  
Polymer Chains ◽  
Nucleic Acid Detection ◽  
One Dimensional ◽  
Autonomous Assembly ◽  
Nucleic Acid Assay ◽  
Sticky End ◽  
Catalyzed Hairpin Assembly

One-dimensional DNA polymer chains were obtained based on the catalyzed hairpin assembly and sticky end self-assembly, which led to a signal amplified colorimetric nucleic acid assay.

Graphene Oxide-based Amplified Fluorescence Sensor for Nucleic Acid Detection through Target-catalyzed Hairpin Assembly

2015 ◽  
Vol 44 (10) ◽  
pp. 1353-1355 ◽  
Author(s):  
Yusuke Kitamura ◽  
Takaaki Miyahata ◽  
Hirotaka Matsuura ◽  
Kazuto Hatakeyama ◽  
Takaaki Taniguchi ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Nucleic Acid ◽  
Fluorescence Sensor ◽  
Nucleic Acid Detection ◽  
Catalyzed Hairpin Assembly

Self-assembly of DNA nanoparticles through multiple catalyzed hairpin assembly for enzyme-free nucleic acid amplified detection

Talanta ◽  
2018 ◽  
Vol 179 ◽  
pp. 641-645 ◽  
Author(s):  
Hongfei He ◽  
Jianyuan Dai ◽  
Yan Meng ◽  
Zhijuan Duan ◽  
Cuisong Zhou ◽  
...  
Keyword(s):  
Nucleic Acid ◽  
Self Assembly ◽  
Dna Nanoparticles ◽  
Catalyzed Hairpin Assembly

Rapid and enzyme-free nucleic acid detection based on exponential hairpin assembly in complex biological fluids

The Analyst ◽  
2016 ◽  
Vol 141 (10) ◽  
pp. 2883-2886 ◽  
Author(s):  
Cuiping Ma ◽  
Menghua Zhang ◽  
Shan Chen ◽  
Chao Liang ◽  
Chao Shi
Keyword(s):  
Nucleic Acid ◽  
Self Assembly ◽  
Detection Method ◽  
Biological Fluids ◽  
Nucleic Acid Amplification ◽  
Nucleic Acid Detection ◽  
Dna Hairpins ◽  
Fret Pair

Herein, we have developed a rapid and enzyme-free nucleic acid amplification detection method that combined the exponential self-assembly of four DNA hairpins and the FRET pair Cy3 and Cy5.

scholarly journals One-Dimensional Nanocomposites Based on Polypyrrole-Carbon Nanotubes and Their Thermoelectric Performance

Polymers ◽  
2021 ◽  
Vol 13 (2) ◽  
pp. 278
Author(s):  
Neazar Baghdadi ◽  
M. Sh. Zoromba ◽  
M. H. Abdel-Aziz ◽  
A. F. Al-Hossainy ◽  
M. Bassyouni ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Self Assembly ◽  
In Situ Polymerization ◽  
Thin Layers ◽  
Polymer Chains ◽  
One Dimensional ◽  
Low Concentrations ◽  
Multi Walled Carbon Nanotubes ◽  
High Concentrations ◽  
Walled Carbon Nanotubes

Conducting polymers have attracted significant attention due to their easy fabrication, morphology modification, and their electrical properties. Amongst them, polypyrrole (PPy) has attractive thermoelectric (TE) properties. Engineering of this polymer in one-dimensional (1D) nanostructured form is found to enhance its TE performance. This was achieved in the present work by using multi-walled carbon nanotubes (MWCNTs) as a core template to direct the self-assembly of PPy and also to further enhance its TE performance. The growth of PPy on the sidewalls of MWCNTs was performed in an acidic medium based oxidative in situ polymerization. Various concentrations of MWCNTs within the range 1.1–14.6 wt.% were used to form the MWCNTs/PPy nanocomposites in 1D core-shell structures. The morphology and microstructure results of the produced nanocomposite samples showed that this MWCNTs were successfully coated by thick and thin layers of PPy. At low concentrations of MWCNTs, thick layers of PPy are formed. While at high concentrations thin layers are coated. The formed 1D nanocomposites have enhanced TE performance, particularly those containing higher contents of MWCNTs. The power factor and figure of merit values for the formed 1D nanocomposites recorded around 0.77 µV/mK2 and 1 × 10−3 at room temperature (RT), respectively. This enhancement was attributed to the perfect coating and good interaction between PPy and MWCNT through π–π stacking between the polymer chains and these nanotubes. These results might be useful for developing future TE materials and devices.

Nucleic acid detection on DNA chips using highly reactive and stable diazo-biotins

2008 ◽  
Author(s):  
Alain Laurent ◽  
Arnaud Burr ◽  
Thibault Martin ◽  
Frédéric Lasnet ◽  
Sébastien Hauser ◽  
...  
Keyword(s):  
Nucleic Acid ◽  
Nucleic Acid Detection ◽  
Dna Chips

scholarly journals Synthesis of aminated polystyrene and its self-assembly with nanoparticles at oil/water interface

e-Polymers ◽  
2020 ◽  
Vol 20 (1) ◽  
pp. 317-327
Author(s):  
Chenliang Shi ◽  
Ling Lin ◽  
Yukun Yang ◽  
Wenjia Luo ◽  
Maoqing Deng ◽  
...  
Keyword(s):  
Interfacial Tension ◽  
Self Assembly ◽  
Carbon Dots ◽  
Chain Transfer ◽  
Functionalized Polymers ◽  
Amino Groups ◽  
One Dimensional ◽  
Reversible Addition ◽  
Oil Water ◽  
Chain Transfer Polymerization

AbstractThe influence of density of amino groups, nanoparticles dimension and pH on the interaction between end-functionalized polymers and nanoparticles was extensively investigated in this study. PS–NH2 and H2N–PS–NH2 were prepared using reversible addition–fragmentation chain transfer polymerization and atom transfer radical polymerization. Zero-dimensional carbon dots with sulfonate groups, one-dimensional cellulose nanocrystals with sulfate groups and two-dimensional graphene with sulfonate groups in the aqueous phase were added into the toluene phase containing the aminated PS. The results indicate that aminated PS exhibited the strongest interfacial activity after compounding with sulfonated nanoparticles at a pH of 3. PS ended with two amino groups performed better in reducing the water/toluene interfacial tension than PS ended with only one amino group. The dimension of sulfonated nanoparticles also contributed significantly to the reduction in the water/toluene interfacial tension. The minimal interfacial tension was 4.49 mN/m after compounding PS–NH2 with sulfonated zero-dimensional carbon dots.

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