Document Detail


Visualizing Nanoparticle Dissolution by Imaging Mass Spectrometry.
MedLine Citation:
PMID:  24611464     Owner:  NLM     Status:  Publisher    
Abstract/OtherAbstract:
We demonstrate the ability to visualize nanoparticle dissolution while simultaneously providing chemical signatures that differentiate between citrate-capped silver nanoparticles (AgNPs), AgNPs forced into dissolution via exposure to UV radiation, silver nitrate (AgNO3), and AgNO3/citrate deposited from aqueous solutions and suspensions. We utilize recently developed inkjet printing (IJP) protocols to deposit the different solutions/suspensions into NP aggregates and soluble species, which separate onto surfaces in situ, and collect mass spectral imaging data via time-of-flight secondary ion mass spectrometry (ToF-SIMS). Resulting 2D Ag(+) chemical images provide the ability to distinguish between the different Ag-containing starting materials and, when coupled with mass spectral peak ratios, provide information-rich datasets for quick and reproducible visualization of NP-based aqueous constituents. When compared to other measurements aimed at studying NP dissolution, the IJP-ToF-SIMS approach offers valuable information that can potentially help in understanding the complex equilibria in NP-containing solutions and suspensions, including NP dissolution kinetics and extent of overall dissolution.
Authors:
Christopher Szakal; Melissa S Ugelow; Justin M Gorham; Andrew R Konicek; Richard David Holbrook
Related Documents :
18778044 - Arginine zwitterion is more stable than the canonical form when solvated by a water mol...
21553194 - Uniform lab-scale biocatalytic nanoporous latex coatings for reactive microorganisms.
21451234 - Thermal stability of the hydrogen-bonded water network in the hydration shell of islet ...
10963664 - Unbinding forces of single antibody-antigen complexes correlate with their thermal diss...
16466824 - Paclitaxel releasing films consisting of poly(vinyl alcohol)-graft-poly(lactide-co-glyc...
24686004 - Direct electrochemistry of cytochrome c immobilized on gold electrode surface via zr(iv...
Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2014-3-10
Journal Detail:
Title:  Analytical chemistry     Volume:  -     ISSN:  1520-6882     ISO Abbreviation:  Anal. Chem.     Publication Date:  2014 Mar 
Date Detail:
Created Date:  2014-3-11     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  0370536     Medline TA:  Anal Chem     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
Export Citation:
APA/MLA Format     Download EndNote     Download BibTex
MeSH Terms
Descriptor/Qualifier:

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


Previous Document:  Total Synthesis of (±)-Przewalskin B.
Next Document:  Simultaneous enantioselective determination of triazole fungicide Flutriafol in vegetables, fruits, ...