Simultaneously obtain multi-dimensional data on particle size, concentration in a single measurement.

Wider particle size range: 50 - 2000 nm
Ultra-wide concentration detection range: 2×106 - 3×1011 particles/mL

Unparalleled Detection Performance

Particle size measurement precision comparable to electron microscopy

The NanoCoulterTM measures the average particle size and size distribution of polystyrene standard microspheres and other polydisperse samples,producing results that are fully consistent with SEM data, offering exceptionally high accuracy and precision.

Corresponding sizing data of Nanocoulter™
Electron microscopy results of the same sample

Measure concentration with high accuracy and repeatability

Samples were diluted in a gradient, and the concentration detection data showed a good linear relationship, consistent with the theoretical concentration(R2 > 0.99). With 10 repeated tests, the coefficient of variation (CV) was less than 5%.

10 Repeated Test of the 100 nm Standard Nanosphere
100 nm Standard Sample tested 10 times repeatedly

Related Cases

MISEV Recommends RPS for EV Characterization

“RPS measurements do have very high concordance with TEM data.” —MISEV 2023

RPS technology, a non-optical method, is ideal for orthogonal validating TEM and flow cytometry. NanoCoulter™ offers accurate size distribution analysis with a wide detection range (50-800 nm) and concentrations (5×10⁷-2×10¹¹ particles/mL), making it indispensable for EV research.”

Investigation of EV Isolation Methods

EVs purification often requires multiple steps. NanoCoulter™ quickly and accurately evaluates the impact of different methods on size and concentration.

Rapid Quantification of Exosome Purity

Exosome purity can be assessed by comparing particle counts before and after Triton X-100 lysis. A 87.2% purity was calculated, with a significant drop in particle number post-lysis—demonstrating effective membrane disruption and high sample quality.

Stability Study of Liposomal Drug

NanoCoulter™ precisely evaluates Liposome stability which varies and impacts the drug usage. The concentration changes of two liposome samples after vortex reveals the better stability of Sample 2.

Particle Size Composition & Zeta Potential Analysis of LNPs

Particle size and distribution are CQA for LNP drugs, varying with preparation methods and these differences are often misrepresented by DLS. NanoCoulter™ accurately analyzes size distribution, concentration, and percentage of custom-gated size fractions, while precisely correlating individual particle size with zeta potential across various LNP formulations.

Aggregation Analysis of Poxvirus

The virus’s storage conditions impact aggregation, with increased aggregates reducing infectivity. NanoCoulterTM, with its high particle size resolution, is one of the best methods, aside from TEM. for quickly and accurately assessing aggregation. As shown, under two storage conditions, virus particles in Condition 2 are more dispersed.

Latest Articles & News

AAVs are promising gene therapy vectors due to their small size and favorable safety profile. However, accurately characterizing these sub-50 nm particles remains a major technical challenge in the field.
A recent study employed the NanoCoulter particle analyzer, based on resistive pulse sensing (RPS) technology, to comprehensively evaluate five commonly used EV isolation methods, providing valuable insights for researchers.
In the fields of nanotechnology and materials science, particle size distribution (PSD) is a critical parameter that directly influences the performance and applicability of nanomaterials. Two of the most commonly used indicators to evaluate PSD are the Polydispersity Index (PDI) and the SPAN value. While often used interchangeably, these two metrics differ significantly in how they are calculated and interpreted. Understanding the distinction between PDI and SPAN is essential for accurate particle characterization.