Evidence map›Paper›PMID 31494775›Full record

ArticleMikrochimica acta2019

Water-dispersed silicon quantum dots for on-off-on fluorometric determination of chromium(VI) and ascorbic acid.

Wen Xu, Lishuang Yu, Huifeng Xu, Shiqi Zhang, Wei Xu, Yu Lin, Xi Zhu

Abstract read
PubMed Publisher
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 7 papers.

0numbers the graph read from it
0cells of the map it votes in
7citing papers in PubMed
4.2field-weighted citation impact, top 5% 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

7 citing papers in PubMed, 41 citations in OpenAlex.

  1. Article
  2. Article
  3. Article
  4. Promoted off-on recognition of HMikrochimica acta · 2020
    Article
  5. Review
  6. Article
  7. Article
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

7 authors at 2 institutions in 1 country.

Wen XuCollege of Pharmacy, Fujian University of Traditional Chinese Medicine, 350002, Fuzhou, Fujian, China.
Lishuang YuCollege of Pharmacy, Fujian University of Traditional Chinese Medicine, 350002, Fuzhou, Fujian, China.
Huifeng XuFujian Key Laboratory of Integrative Medicine on Geriatrics, Academy of Integrative Medicine, Fujian University of Traditional Chinese Medicine, 350002, Fuzhou, Fujian, China.
Shiqi ZhangCollege of Pharmacy, Fujian University of Traditional Chinese Medicine, 350002, Fuzhou, Fujian, China.
Wei XuCollege of Pharmacy, Fujian University of Traditional Chinese Medicine, 350002, Fuzhou, Fujian, China. 2000017@fjtcm.edu.cn.
Yu LinCollege of Pharmacy, Fujian University of Traditional Chinese Medicine, 350002, Fuzhou, Fujian, China. yulam@163.com.
Xi ZhuCollege of Life Sciences, Fujian Agriculture and Forestry University, Fuzhou, 350002, Fujian, China. zhuxi5810@sina.com.
Fujian University of Traditional Chinese Medicine · CNFujian Agriculture and Forestry University · CN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Water-dispersed silicon quantum dots (SiQDs) with the quantum yield of 25% was prepared using aminopropyltrimethoxysilane as the silicon source and ascorbic acid (AA) as the reduction reagent. The SiQDs display blue fluorescence with excitation/emission peaks at 350 nm/440 nm. The synthesized SiQDs are shown to be a viable "on-off-on" fluorescent probe for the detection of Cr(VI) and AA. Cr(VI) ions exert an inner filter effect on the fluorescence of the SiQDs which results in a reduction of fluorescence (off-state). On addition of AA, Cr(VI) is chemically reduced to Cr(III) which weakens the inner filter effect and restores fluorescence (on-state). The method has low detection limits for both Cr(VI) and AA (0.16 μM and 0.57 μM, respectively). It was applied to the analysis of spiked lotus seeds and human serum samples. Graphical abstract A simple and facile "on-off-on" fluorometric method for Cr(VI) and ascorbic acid (AA) was developed using water-soluble silicon quantum dots (SiQDs) as the fluorescent probe. The approach was also used to assay Cr(VI) and AA in the lotus seeds and human serum, respectively.

Indexed as

Ascorbic acidCr(VI)Fluorescent nanoprobeSilicon quantum dots

Identifiers

PMID31494775
OpenAlexW2971467932

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

None linked

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.