Evidence map›Paper›PMID 31197573›Full record

ArticleMikrochimica acta2019

Intracellular fluorometric determination of microRNA-21 by using a switch-on nanoprobe composed of carbon nanotubes and gold nanoclusters.

Yuanyuan Liu, Liping Jiang, Xiaojian Fan, Pingping Liu, Shenghao Xu, Xiliang Luo

Abstract read
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In one paragraph

Article in Mikrochimica acta, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers.

0numbers the graph read from it
0cells of the map it votes in
5citing papers in PubMed
1.1field-weighted citation impact, top 23% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

5 citing papers in PubMed, 21 citations in OpenAlex.

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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

6 authors at 3 institutions in 1 country.

Yuanyuan LiuKey Laboratory of Optic-electric Sensing and Analytical Chemistry for Life Science, MOE; College of Chemistry and Molecular Engineering, Qingdao University of Science and Technology, Qingdao, 266042, People's Republic of China.
Liping JiangKey Laboratory of Optic-electric Sensing and Analytical Chemistry for Life Science, MOE; College of Chemistry and Molecular Engineering, Qingdao University of Science and Technology, Qingdao, 266042, People's Republic of China.
Xiaojian FanDepartment of Breast Surgery, The Eighth Peoples' Hospital of Qingdao, Qingdao, 266100, China.
Pingping LiuZhengzhou Tobacco Research Institute, CNTC, Zhengzhou, 450000, People's Republic of China.
Shenghao XuKey Laboratory of Optic-electric Sensing and Analytical Chemistry for Life Science, MOE; College of Chemistry and Molecular Engineering, Qingdao University of Science and Technology, Qingdao, 266042, People's Republic of China. xushenghao@qust.edu.cn.
Xiliang LuoKey Laboratory of Optic-electric Sensing and Analytical Chemistry for Life Science, MOE; College of Chemistry and Molecular Engineering, Qingdao University of Science and Technology, Qingdao, 266042, People's Republic of China. xiliangluo@qust.edu.cn.ORCID 0000-0001-6075-7089
Qingdao University of Science and Technology · CNQingdao Eighth People's Hospital · CNTobacco Research Institute · CN

Funding

National Natural Science Foundation of China-Yunnan Joint Fund 21505081National Natural Science Foundation of China-Yunnan Joint Fund 21675093
6 · The paper itself

Abstract

A sensitive and rapid fluorometric "switch on" assay is described for the detection of microRNA-21. It is based on the use of a fluorescence resonance energy transfer pair consisting of lysozyme-modified gold nanoclusters (Lys-Au NCs) and carbon nanotubes (CNTs). The Lys-Au NCs can be synthesized by a microwave-assisted technique within 2.5 min. They were modified with the ss-DNA probe (a 22-mer) for microRNA-21. Once the ss-DNA associates with the CNTs due to π stacking, the orange-red fluorescence (with excitation/emission peaks at 500/610 nm) is quenched. Nevertheless, the quenched fluorescence can be recovered after addition of microRNA-21 because of the stronger affnity between ss-DNA and microRNA-21. On the basis of the fluorescence recovery at 610 nm caused by microRNA-21, the latter can be quantified in the 0.01 to 100 nM concentration range, with a 36 pM detection limit. The method was applied to the determination of microRNA-21 in spiked serum with recoveries ranging from 98.6% to 110.0%. It also enables normal and cancer cells to be differentiated by direct imaging of intracellular microRNA-21. Graphical abstract A sensitive "switch on" FRET-based fluorometric assay for microRNA-21 is described. It is based on the use of  lysozyme-modified gold nanoclusters (Lys-Au NCs) and carbon nanotubes (CNTs) as energy donor and energy acceptor, respectively.

Indexed as

Fluorescence Resonance Energy TransferFluorescent DyesGoldHumansLimit of DetectionMetal NanoparticlesMicroRNAsMicroscopy, FluorescenceNanotubes, CarbonFluorescent DyesGoldMicroRNAsMIRN21 microRNA, humanNanotubes, CarbonCell imagingFluorescenceFluorescence resonance energy transferHybridization specificity

Identifiers

PMID31197573
OpenAlexW2952881957

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Registered trials

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.