Sensitive Detection of Coralyne and Heparin Using a Singly Labeled Fluorescent Oligonucleotide Probe

Zhu, Xingxing; Chen, Miangjian; Ma, Changbei

doi:10.1002/slct.201900942

Cited by 7 publications

(2 citation statements)

References 42 publications

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“…In general, aptamers and ribozymes are two types of nucleic acid recognition elements for non-nucleic acid biomarkers. In this section, we mainly introduce nucleic acid recognition elements for the detection of small molecules, ,,− proteins, ,,− cells, and metal ions ,− based on aptamers and ribozymes (Figure ).…”

Section: Clinical Translation-driven Nucleic Acid-based Testsmentioning

confidence: 99%

Nucleic Acid Tests for Clinical Translation

et al. 2021

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Nucleic acids, including deoxyribonucleic acid (DNA) and ribonucleic acid (RNA), are natural biopolymers composed of nucleotides that store, transmit, and express genetic information. Overexpressed or underexpressed as well as mutated nucleic acids have been implicated in many diseases. Therefore, nucleic acid tests (NATs) are extremely important. Inspired by intracellular DNA replication and RNA transcription, in vitro NATs have been extensively developed to improve the detection specificity, sensitivity, and simplicity. The principles of NATs can be in general classified into three categories: nucleic acid hybridization, thermal-cycle or isothermal amplification, and signal amplification. Driven by pressing needs in clinical diagnosis and prevention of infectious diseases, NATs have evolved to be a rapidly advancing field. During the past ten years, an explosive increase of research interest in both basic research and clinical translation has been witnessed. In this review, we aim to provide comprehensive coverage of the progress to analyze nucleic acids, use nucleic acids as recognition probes, construct detection devices based on nucleic acids, and utilize nucleic acids in clinical diagnosis and other important fields. We also discuss the new frontiers in the field and the challenges to be addressed.

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Section: Clinical Translation-driven Nucleic Acid-based Testsmentioning

confidence: 99%

Nucleic Acid Tests for Clinical Translation

et al. 2021

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“…In recent decades, scientists have made continuous efforts to establish various methods for COR detection, such as high-performance liquid chromatography-electrospray ionization-mass spectrometry (HPLC-ESI-MS), fluorescence, colorimetry, electrochemical ones, etc. [ 8 , 9 , 10 , 11 , 12 , 13 , 14 , 15 , 16 , 17 , 18 ]. Although these strategies presented different advantages and disadvantages, to some extent, all of them pushed forward the development of COR sensors.…”

Section: Introductionmentioning

confidence: 99%

Integration of G-Quadruplex and Pyrene as a Simple and Efficient Ratiometric Fluorescent Platform That Programmed by Contrary Logic Pair for Highly Sensitive and Selective Coralyne (COR) Detection

Han

Ding

et al. 2023

Biosensors

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The effective and accurate detection of the anticancer drug coralyne (COR) is highly significant for drug quality control, medication safety and good health. Although various COR sensors have been reported in recent years, previous ones can only exhibit single-signal output (turn ON or turn OFF) with poor reliability and anti-interference ability. Therefore, exploring novel platform with dual-signal response for COR detection is urgently needed. Herein, we reported the first ratiometric fluorescent platform for highly sensitive and selective COR detection by integrating G-quadruplex (G4) and Pyrene (Py) as signal probes and harnessing A-COR-A interaction. In the absence of COR, the platform shows a low fluorescence signal of PPIX (F642) and a high one of Py monomer (F383). With the addition of COR, two delicately designed poly-A ssDNAs will hybridize with each other via A-COR-A coordination to form complete G4, yielding the increased fluorescence signal of PPIX and the decreased one of Py due to the formation of Py excimer. Based on the above mechanism, we constructed a simple and efficient sensor that could realize the ratiometric fluorescent detection of COR with high sensitivity and selectivity. A linear relationship between F642/F383 and COR’s concentration is obtained in the range from 1 nM to 8 μM. And the limit of detection of COR could reach to as low as 0.63 nM without any amplification, which is much lower than that of most COR sensors reported so far. Notably, the logical analysis of COR can be carried out under the control of a “YES-NOT” contrary logic pair, enabling the smart dual-channel response with an adequate S/N ratio and improved reliability and anti-interference ability. Moreover, this system also presents satisfactory performance in fetal bovine serum (FBS) samples.

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Oligo‐Adenine Derived Secondary Nucleic Acid Frameworks: From Structural Characteristics to Applications

Hu,

Willner

2024

Angewandte Chemie

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Oligo‐adenine (polyA) is primarily known for its critical role in mRNA stability, translational status, and gene regulation. Beyond its biological functions, extensive research has unveiled the diverse applications of polyA. In response to environmental stimuli, single polyA strands undergo distinctive structural transitions into diverse secondary configurations, which are reversible upon the introduction of appropriate counter‐triggers. In this review, we systematically summarize recent advances of noncanonical structures derived from polyA, including A‐motif duplex, A‐cyanuric acid triplex, A‐coralyne‐A duplex, and T·A‐T triplex. The structural characteristics and mechanisms underlying these conformations under specific external stimuli are addressed, followed by examples of their applications in stimuli‐responsive DNA hydrogels, supramolecular fibre assembly, molecular electronics and switches, biosensing and bioengineering, payloads encapsulation and release, and others. A detailed comparison of these polyA‐derived noncanonical structures is provided, highlighting their distinctive features. Furthermore, by integrating their stimuli‐responsiveness and conformational characteristics, advanced material development, such as pH‐cascaded DNA hydrogels and supramolecular fibres exhibiting dynamic structural transitions adapting environmental cues, are introduced. An outlook for future developments is also discussed. These polyA derived, stimuli‐responsive, noncanonical structures enrich the arsenal of DNA “toolbox”, offering dynamic DNA frameworks for diverse future applications.

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Sensitive Detection of Coralyne and Heparin Using a Singly Labeled Fluorescent Oligonucleotide Probe

Cited by 7 publications

References 42 publications

Nucleic Acid Tests for Clinical Translation

Nucleic Acid Tests for Clinical Translation

Integration of G-Quadruplex and Pyrene as a Simple and Efficient Ratiometric Fluorescent Platform That Programmed by Contrary Logic Pair for Highly Sensitive and Selective Coralyne (COR) Detection

Oligo‐Adenine Derived Secondary Nucleic Acid Frameworks: From Structural Characteristics to Applications

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