ArticleBiointerphases2011
X-ray photoelectron spectroscopy characterization of gold nanoparticles functionalized with amine-terminated alkanethiols.
Article in Biointerphases, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 19 papers.
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Who cites it
19 citing papers in PubMed.
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- Depolarized Forward Light Scattering for Subnanometer Precision in Biomolecular Layer Analysis on Gold Nanorods.The journal of physical chemistry letters · 2025Article
- Biohybrid materials comprising an artificial peroxidase and differently shaped gold nanoparticles.Nanoscale advances · 2024Article
- Gold nanorods derivatized with CTAB and hydroquinone or ascorbic acid: spectroscopic investigation of anisotropic nanoparticles of different shapes and sizes.Nanoscale advances · 2023Article
- The influence of ferrocene anchoring method on the reactivity and stability of SBA-15-based catalysts in the degradation of ciprofloxacinRSC advances · 2023Article
- Nanocatalysts for High Selectivity Enyne Cyclization: Oxidative Surface Reorganization of Gold Sub-2-nm Nanoparticle Networks.JACS Au · 2021Article
- An effective strategy for development of docetaxel encapsulated gold nanoformulations for treatment of prostate cancer.Scientific reports · 2021Article
- XPS Analysis of 2- and 3-Aminothiophenol Grafted on Silicon (111) Hydride Surfaces.Molecules (Basel, Switzerland) · 2018Article
- Self-Assembly Synthesis of Silver Nanowires/Graphene Nanocomposite and Its Effects on the Performance of Electrically Conductive Adhesive.Materials (Basel, Switzerland) · 2018Article
- Nanodiamonds conjugated to gold nanoparticles for colorimetric detection of clenbuterol and chromium(III) in urine.Mikrochimica acta · 2017Article
- Biomedical surface analysis: Evolution and future directions (Review).Biointerphases · 2017Review
- Development of gold nanoparticles coated with silica containing the antibiofilm drug cinnamaldehyde and their effects on pathogenic bacteria.International journal of nanomedicine · 2017Article
- Multitechnique characterization of oligo(ethylene glycol) functionalized gold nanoparticles.Biointerphases · 2016Article
- Evidence of the Disassembly of α-Cyclodextrin-octylamine Inclusion Compounds Conjugated to Gold Nanoparticles via Thermal and Photothermal Effects.Molecules (Basel, Switzerland) · 2016Article
- Versailles Project on Advanced Materials and Standards Interlaboratory Study on Measuring the Thickness and Chemistry of Nanoparticle Coatings Using XPS and LEIS.The journal of physical chemistry. C, Nanomaterials and interfaces · 2016Article
- Quantifying the Impact of Nanoparticle Coatings and Nonuniformities on XPS Analysis: Gold/Silver Core-Shell Nanoparticles.Analytical chemistry · 2016Article
- Surface Analysis of Gold Nanoparticles Functionalized with Thiol-Modified Glucose SAMs for Biosensor Applications.Frontiers in chemistry · 2016Article
- Low energy ion scattering: Determining overlayer thickness for functionalized gold nanoparticles.Surface and interface analysis : SIA · 2013Article
Corrections and comments
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Authors and funding
3 authors.
Funding
Abstract
Gold nanoparticles (AuNPs) functionalized with a short chain amine-terminated alkanethiol (HS-(CH(2))(2)NH(2) or C2 NH(2)-thiol) are prepared via a direct synthesis method and then ligand-exchanged with a long chain amine-terminated alkanethiol (HS-(CH(2))(11)NH(2) or C11 NH(2)-thiol). Transmission electron microscopy analysis showed the AuNPs were relatively spherical with a median diameter of 24.2 ± 4.3 nm. X-ray photoelectron spectroscopy was used to determine surface chemistry of the functionalized and purified AuNPs. The ligand-exchange process was monitored within the time range from 30 min to 61 days. By the fourth day of exchange all the C2 NH(2)-thiol molecules had been replaced by C11 NH(2)-thiol molecules. C11 NH(2)-thiol molecules continued to be incorporated into the C11 NH(2) self-assembled monolayer between days 4 and 14 of ligand-exchange. As the length of the exchange time increased, the functionalized AuNPs became more stable against aggregation. The samples were purified by a centrifugation and resuspension method. The C2 NH(2) covered AuNPs aggregated immediately when purification was attempted. The C11 NH(2) covered AuNPs could be purified with minimal or no aggregation. Small amounts of unbound thiol (∼15%) and oxidized sulfur (∼20%) species were detected on the ligand-exchanged AuNPs. Some of the unbound thiol and all of the oxidized sulfur could be removed by treating the functionalized AuNPs with HCl.
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