ArticleJACS Au2022
Surfactant-free Synthesis of Spiky Hollow Ag-Au Nanostars with Chemically Exposed Surfaces for Enhanced Catalysis and Single-Particle SERS.
Article in JACS Au, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 16 papers.
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Who cites it
16 citing papers in PubMed.
- Au@Ag spiny sphere-based SERS for the ultrasensitive and rapid detection of nicotine in mainstream cigarette smoke.Mikrochimica acta · 2026Article
- SERS-Based Immunoassay for α-Fetoprotein Biomarker Detection Using an Au-Ag Nanostars Platform.Biosensors · 2025Article
- Engineering plasmonic Au nanostars: Enhanced plasmonic properties, preparation and biomedical application.Materials today. Bio · 2025Review
- Surface-Enhanced Raman Spectroscopy for Biomedical Applications: Recent Advances and Future Challenges.ACS applied materials & interfaces · 2025Review
- Pickering emulsions with low interface coverage but enhanced stability for emulsion interface catalysis and SERS-based detection.Nature communications · 2025Article
- Article
- Differences between surfactant-free Au@Ag and CTAB-stabilized Au@Ag star-like nanoparticles in the preparation of nanoarrays to improve their surface-enhanced Raman scattering (SERS) performance.Nanoscale advances · 2023Article
- Combining surface-accessible Ag and Au colloidal nanomaterials with SERS for in situ analysis of molecule-metal interactions in complex solution environments.Nature protocols · 2023Review
- SERS as a Probe of Surface Chemistry Enabled by Surface-Accessible Plasmonic Nanomaterials.Accounts of chemical research · 2023Article
- Article
- General approach to surface-accessible plasmonic Pickering emulsions for SERS sensing and interfacial catalysis.Nature communications · 2023Article
- Diffusive Formation of Au/Ag Alloy Nanoparticles of Governed Composition in Glass.Nanomaterials (Basel, Switzerland) · 2022Article
- High spin FeChemical science · 2022Article
- Synergistic photothermal-photodynamic-chemotherapy toward breast cancer based on a liposome-coated core-shell AuNS@NMOFs nanocomposite encapsulated with gambogic acid.Journal of nanobiotechnology · 2022Article
- Article
- In-Situ Monitoring the SERS Spectra of para-Aminothiophenol Adsorbed on Plasmon-Tunable Au@Ag Core-Shell Nanostars.Nanomaterials (Basel, Switzerland) · 2022Article
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Authors and funding
11 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Spiky/hollow metal nanoparticles have applications across a broad range of fields. However, the current bottom-up methods for producing spiky/hollow metal nanoparticles rely heavily on the use of strongly adsorbing surfactant molecules, which is undesirable because these passivate the product particles' surfaces. Here we report a high-yield surfactant-free synthesis of spiky hollow Au-Ag nanostars (SHAANs). Each SHAAN is composed of >50 spikes attached to a hollow ca. 150 nm diameter cubic core, which makes SHAANs highly plasmonically and catalytically active. Moreover, the surfaces of SHAANs are chemically exposed, which gives them significantly enhanced functionality compared with their surfactant-capped counterparts, as demonstrated in surface-enhanced Raman spectroscopy (SERS) and catalysis. The chemical accessibility of the pristine SHAANs also allows the use of hydroxyethyl cellulose as a weakly bound stabilizing agent. This produces colloidal SHAANs that remain stable for >1 month while retaining the functionalities of the pristine particles and allows even single-particle SERS to be realized.
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Registered trials
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.