Student or educator? Sign up with your school email and get 6 months of Pro free.
CoChat
Sign Up
Cited by 293

The DOI matches its Crossref record.

Recognition of Potassium Ion in Water by 15-Crown-5 Functionalized Gold Nanoparticles

Lin, Sui-Yi, Liu, Shi-Wei, Lin, Chia-Mei, Chen, Chun-hsien·2002·Analytical Chemistry
DOI 10.1021/ac0156316
Open this paper in CoChat — free account

Abstract

Reported here is an efficient recognition of K+ by 15-crown-5 functionalized gold nanoparticles in aqueous matrix containing physiologically important cations, such as Li+, Cs+, NH4+, Mg2+, Ca2+, and excess amount of Na+. Upon exposure to K+, the colloidal solution changes from red to blue, in response to surface plasmon absorption of dispersed and aggregated nanoparticles. The concentration ranges of K+ detected in this study are 0.099-0.48 mM and 7.6 microM-0.14 mM, when concentrations of colloidal gold are 54.9 and 7.1 nM, respectively. Recognition of K+ and formation of the aggregates are proposed via a sandwich complex of 2:1 between 15-crown-5 moiety and K+. Also discussed is the possibility of a preorganized structure of 15-crown-5 at the water-organic interface for the efficient complexation with K+.

Overview

The claims and statistics of this paper haven’t been checked yet.

Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.

A few free checks a day · papers already verified open instantly · results are public

Integrity signals

Registry

Crossref · 10.1021/ac0156316

Cites

Statistics

Verification

Claims the paper makes

The claims and statistics of this paper haven’t been checked yet.

Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.

A few free checks a day · papers already verified open instantly · results are public

Self-check

Percentages, sums and reported differences re-computed from the paper’s own numbers.

The self-check needs the paper’s full text.

Citations

Cited by

See all 293

Metadata

Authors
Lin, S.-Y., Liu, S.-W., Lin, C.-M., & Chen, C.-H.
Venue
Analytical Chemistry
Publisher
American Chemical Society (ACS)
Published
2001-12-12
Volume
74
Issue
2
Pages
330-335
ISSN
  • 0003-2700 (ISSN-L)
  • 1520-6882
DOI
10.1021/ac0156316
OpenAlex
W2061002655
Cited by
293
References
0
FWCI
6.67
Type
journal article
Language
en
Open access
closed

About these checks

Registry, retraction, Cites and statistics results are computed, not judged, with one exception: a printed reference that no index lists is read once by a model before it counts as a citation error. Claims are extracted by a model and kept only when their quote appears verbatim in the text; each cited source is then checked, with a model’s help, for whether it says what the claim relies on. Those verdicts can be wrong — read the claim’s quote and the cited source before relying on one.

Statistics and arithmetic are recomputed, not judged.

Confidence bands are shown only for fields calibrated on our annotated test set. None is calibrated yet, so no band is shown.

What counts as a claim ›How we measure confidence ›How we check this ›

Are you an author, or do you see a problem with this page? Request a review

How to cite

Cite CoChat for the checks on this page, and the paper for its own findings.

This page
CoChat. (2026). Citation check: Recognition of Potassium Ion in Water by 15-Crown-5 Functionalized Gold Nanoparticles. https://app.cochat.ai/papers/10.1021/ac0156316
The paper
Lin, S.-Y., Liu, S.-W., Lin, C.-M., & Chen, C.-H. (2002). Recognition of Potassium Ion in Water by 15-Crown-5 Functionalized Gold Nanoparticles. Analytical Chemistry. https://doi.org/10.1021/ac0156316

Data sources

Bibliographic data: Semantic Scholar, OpenAlex, Crossref.

Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).

Semantic Scholar’s data is described in: Kinney, R., et al. (2023). The Semantic Scholar Open Data Platform. arXiv:2301.10140.