ArticleACS nano2025
Accurate Single-Nanoparticle Sizing down to 3 nm with an Optofluidic Microcavity.
Article in ACS nano, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
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Who cites it
2 citing papers in PubMed.
- Label-Free Optical Differentiation of Single Diffusing Amino Acids at Picomolar Concentrations.Research square · 2026Article
- Single-Particle Photothermal Microscopy Using On-Chip Silicon Nitride Microring Resonators.The journal of physical chemistry. A · 2026Article
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Authors and funding
5 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Nanoparticles are ubiquitous, and methods that reveal insights into single-particle properties are highly desired to enable their advanced characterization. Techniques that achieve label-free single-nanoparticle detection often lack bandwidth or do not provide quantitative information. Here, we present a cavity-based dispersive sensing method that achieves a high bandwidth to capture all relevant time scales of translational diffusion and a sensitivity to detect and size single particles with diameters down to 3 nm. We develop an analytical model describing the autocorrelation function for particle diffusion in a standing-wave sensing geometry and propose a method to address the challenges posed by the transient nature of single-particle signals. With this, we achieve quantitative particle sizing with high precision and accuracy and provide an important tool to analyze single-particle diffusion.
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Registered trials
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