AI Article Synopsis
- - The study focuses on creating gold nanoparticles (AuNPs) with specialized functions to enhance the use of hybrid materials, specifically for detecting iron ions (Fe(III)) with both color change and fluorescence as output signals.* - By using a piperazinyl compound, the AuNPs can switch between aggregation and dispersion when interacting with Fe(III), which allows for effective ion recognition.* - The functionalized AuNPs also show sensitivity to changes in pH and have promising applications in sophisticated nanoscale chemosensors.*
Article Abstract
Developing gold nanoparticles (AuNPs) with well-designed functionality is highly desirable for boosting the performance and versatility of inorganic-organic hybrid materials. In an attempt to achieve ion recognition with specific signal expressions, we present here 4-piperazinyl-1,8-naphthalimide-functionalized AuNPs for the realization of quantitative recognition of Fe(III) ions with dual (colorimetric and fluorescent) output. The research takes advantage of 1) quantity-controlled chelation-mode transformation of the piperazinyl moiety on the AuNPs towards Fe(III), thereby resulting in an aggregation-dispersion conversion of the AuNPs in solution, and 2) photoinduced electron transfer of a naphthaimide fluorophore on the AuNPs, thus leading to reversible absorption and emission changes. The functional AuNPs are also responsive to pH variations. This strategy for realizing the aggregation-dispersion conversion of AuNPs with returnable signal output might exhibit application potential for advanced nanoscale chemosensors.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1002/chem.201303958 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Want AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!