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Profile heterogeneity in your samples by measuring protein expression in thousands of single cells in a single run. All you need to do is load your cell suspension. The scWest chip captures ~1,000 single-cells. Once everything is ready, Milo performs a fast, 1 minute SDS-PAGE separation on each single-cell lysate on-chip. Finally, probe with your favorite conventional Western antibodies to measure ~12 proteins per cell using a variety of multiplexing strategies.  ProteinSimple is now a brand in the Bio-Techne family of brands that includes R&D Systems, Novus Biologicals and Tocris. As a company, Bio-Techne has developed, manufactured and sold biotechnology products, clinical calibrators and controls, and consumables for protein analysis—and now analytical instrumentation and consumables through ProteinSimple. 

Unlock the Single-Cell Proteome

Milo instrument by ProteinSimple a Bio-Techne brand


The world's first Single-Cell Western platform

Single Cell Western consumables by ProteinSimple a Bio-Techne brand

Single-Cell Western Consumables

Consumables include probing chambers & scWestern Kits

Requirements & compatibility

Sample type

Suspension containing >10,000 cells

Cell diameter

7-25 µm in suspension

Cell type

Mammalian cells; globular in suspension and unfixed

Antibody requirement

Standard unlabeled primaries and fluorescent secondaries

Other equipment needed

Open-format fluorescence microarray scanner capable of 5 µm resolution

Performance & specifications

Typical cell dilutions

Yield capture and analysis of 1,000-2,000 cells per scWest chip

Molecular weight (MW) range

15-175 kDa

MW resolution

10% difference in distinct spectral channels, as low as 30% differences in same spectral channel

Typical target multiplexing

Up to four proteins per cell by spectral and size-based multiplexing Twelve-plus proteins per cell using stripping & reprobing

Workflow time

4-6 hours

Single-Cell Western Applications

Cancer & Immuno-Oncology

Cancer & Immuno-Oncology

Transform your Cancer & Immuno-oncology research by utilizing next-generation western blotting tools to give you richer views into your samples.



Reduce your lab time with automated simple western systems while accelerating your COVID-19 research. Set up, leave and remotely review your data in just 3 hours!

Cell & Gene Therapy

Cell & Gene Therapy

Next-generation analytical instrumentation to help improve and accelerate your cell and gene therapy workflows.

Targeted Degradation

Targeted Degradation

Boost your screening studies using high throughput & hands-free Simple Western systems for quantitative analysis.

SARS-CoV-2 Serology

SARS-CoV-2 Serology

Quantitatively characterize serum or plasma human IgG antibodies reactive against 5 key viral antigens within one 3-hour run!



A validated workflow for protein analysis in extracellular vesicle samples from the leaders in exosome isolation and high sensitivity western blotting solutions.


Vaccine Development

Improve reproducibility, quantitation, and time to market for your vaccine candidates.



Increase your sensitivity and multiplexing capabilities with neural samples using automated Western blotting systems.