Self-Replicating Catalyzed Hairpin Assembly for Rapid Signal Amplification
A rapid signal amplification system based on the self-replicating catalyzed hairpin assembly is reported in which two hairpins, H1 and H2, were well-designed in which two split target/trigger DNA and two split G-quadruplex sequences were respectively integrated into H1 and H2. Target/trigger DNA can...
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| Vydáno v: | Analytical chemistry (Washington) Ročník 89; číslo 22; s. 11971 |
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| Hlavní autoři: | , , , , |
| Médium: | Journal Article |
| Jazyk: | angličtina |
| Vydáno: |
United States
21.11.2017
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| ISSN: | 1520-6882, 1520-6882 |
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| Abstract | A rapid signal amplification system based on the self-replicating catalyzed hairpin assembly is reported in which two hairpins, H1 and H2, were well-designed in which two split target/trigger DNA and two split G-quadruplex sequences were respectively integrated into H1 and H2. Target/trigger DNA can be cyclically used in this system to form the duplex DNA assemblies (H1-H2), which will bring the two G-quadruplex fragments into close-enough proximity to induce the formation of intact G-quadruplex as a colorimetric signal readout. Similarly, the two split target/trigger DNA sequences will reunite into a DNA sequence that is identical to the target/trigger DNA; then, the obtained replica can also be cyclically used as a new activator unit to trigger the CHA reaction, leading to the rapidly and significantly enhanced formation of target/trigger DNA replicas with the concomitant generation of a higher signal. This self-replication-based autocatalytic signal amplified approach has been successfully used to develop a rapid and visual assay for DNA and small molecule detection. |
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| AbstractList | A rapid signal amplification system based on the self-replicating catalyzed hairpin assembly is reported in which two hairpins, H1 and H2, were well-designed in which two split target/trigger DNA and two split G-quadruplex sequences were respectively integrated into H1 and H2. Target/trigger DNA can be cyclically used in this system to form the duplex DNA assemblies (H1-H2), which will bring the two G-quadruplex fragments into close-enough proximity to induce the formation of intact G-quadruplex as a colorimetric signal readout. Similarly, the two split target/trigger DNA sequences will reunite into a DNA sequence that is identical to the target/trigger DNA; then, the obtained replica can also be cyclically used as a new activator unit to trigger the CHA reaction, leading to the rapidly and significantly enhanced formation of target/trigger DNA replicas with the concomitant generation of a higher signal. This self-replication-based autocatalytic signal amplified approach has been successfully used to develop a rapid and visual assay for DNA and small molecule detection.A rapid signal amplification system based on the self-replicating catalyzed hairpin assembly is reported in which two hairpins, H1 and H2, were well-designed in which two split target/trigger DNA and two split G-quadruplex sequences were respectively integrated into H1 and H2. Target/trigger DNA can be cyclically used in this system to form the duplex DNA assemblies (H1-H2), which will bring the two G-quadruplex fragments into close-enough proximity to induce the formation of intact G-quadruplex as a colorimetric signal readout. Similarly, the two split target/trigger DNA sequences will reunite into a DNA sequence that is identical to the target/trigger DNA; then, the obtained replica can also be cyclically used as a new activator unit to trigger the CHA reaction, leading to the rapidly and significantly enhanced formation of target/trigger DNA replicas with the concomitant generation of a higher signal. This self-replication-based autocatalytic signal amplified approach has been successfully used to develop a rapid and visual assay for DNA and small molecule detection. A rapid signal amplification system based on the self-replicating catalyzed hairpin assembly is reported in which two hairpins, H1 and H2, were well-designed in which two split target/trigger DNA and two split G-quadruplex sequences were respectively integrated into H1 and H2. Target/trigger DNA can be cyclically used in this system to form the duplex DNA assemblies (H1-H2), which will bring the two G-quadruplex fragments into close-enough proximity to induce the formation of intact G-quadruplex as a colorimetric signal readout. Similarly, the two split target/trigger DNA sequences will reunite into a DNA sequence that is identical to the target/trigger DNA; then, the obtained replica can also be cyclically used as a new activator unit to trigger the CHA reaction, leading to the rapidly and significantly enhanced formation of target/trigger DNA replicas with the concomitant generation of a higher signal. This self-replication-based autocatalytic signal amplified approach has been successfully used to develop a rapid and visual assay for DNA and small molecule detection. |
| Author | He, Hongfei Xiao, Dan Duan, Zhijuan Guo, Yong Dai, Jianyuan |
| Author_xml | – sequence: 1 givenname: Jianyuan surname: Dai fullname: Dai, Jianyuan organization: College of Chemistry, Sichuan University , Chengdu 610064, China – sequence: 2 givenname: Hongfei surname: He fullname: He, Hongfei organization: College of Chemistry, Sichuan University , Chengdu 610064, China – sequence: 3 givenname: Zhijuan surname: Duan fullname: Duan, Zhijuan organization: College of Chemistry, Sichuan University , Chengdu 610064, China – sequence: 4 givenname: Yong surname: Guo fullname: Guo, Yong organization: College of Chemistry, Sichuan University , Chengdu 610064, China – sequence: 5 givenname: Dan orcidid: 0000-0001-5295-0540 surname: Xiao fullname: Xiao, Dan organization: College of Chemical Engineering, Sichuan University , Chengdu 610065, China |
| BackLink | https://www.ncbi.nlm.nih.gov/pubmed/29069894$$D View this record in MEDLINE/PubMed |
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