Skip to main content

Leo System

ProteinSimple, part of Bio-Techne | Catalog # 004-550

ProteinSimple, part of Bio-Techne
The Leo™ System, powered by Simple Western™ Technology

Leo Provides High-throughput Quantitative Western Analysis – Shipping available in 2025! 

The Leo™ System, powered by Simple Western™ Technology, is a high-throughput, fully automated capillary western platform. It enables fast, simple, and sensitive protein quantification and detection, processing up to 100 samples per run, increasing experimental size for quantitative assay designs and delivering results in as little as 3 hours.

How Does Leo Work?

Leo, built on proven and trusted Simple Western technology, processes up to 100 samples in a single run, with a processing time of 3 hours, greatly increasing experimental throughput and enabling larger experiments for analytical grade protein quantification. Get the quantitative capabilities of immunoassays with the size resolution and specificity of westerns. Leo offers flexibility with the ability to utilize 1-4 capillary cartridges to run 25-100 samples per run and detect up to 8 protein targets per sample. Each well can be resampled up to 4 times and analyzed in a separate capillary, thus avoiding any concerns with carryover of samples from a prior sampling. Invest confidently in one instrument that meets your needs through the full drug development process.
Leo 3D Tour

Take a Virtual Tour of Leo

Explore Leo for free with an immersive 3D experience and navigate Leo's features at your own pace in a virtual environment. 

Watch the replay of the Leo launch event to explore how Leo can meet your needs, from discovery through analytical development to commercialization, and enable you to reach your next milestone faster.

Watch the Leo Launch Event

Watch the replay of the Leo launch event to explore how Leo can meet your needs and reach your next milestone faster, from discovery through analytical development to commercialization.

Accelerated Discovery in Targeted Protein Degradation Webinar

Accelerating Discovery in Targeted Protein Degradation

Learn how Leo accelerates discovery in targeted protein degradation (TPD) with fully automated protein degradation analysis in 96 lysate samples in 3 hours, providing reliable and reproducible quantitative protein expression data and size resolution for added specificity.

The Simple Way to Advance Protein Research Webinar

The Simple Way to Advance Protein Research

In this webinar, we show how Leo has the potential to transform western blots into quantitative bioanalytical methods suitable for adoption for robust quantitative measures of protein expression, ranging from gene therapy potency to targeted protein degradation studies.  

Citations for Leo System

View all citations for the Simple Western platform.
Please visit our Instrument Citation Database to search our collection of scientific articles that feature our instruments.

Testimonials from your Peers for Simple Western

Showing  1 - 5 of 32 testimonials Showing All

"Using Simple Western has been extremely rewarding, especially due to how easy it was to transfer our western blotting assays to a fully automated format on Simple Western and how well CST antibodies perform on the platform."

Chris LaBreck, Ph.D., Senior Product Scientist, Cell Signaling Technology (CST)

"Simple Western™ allows us to run three-hour assays, which would usually take us two days with traditional Western blots."

Laura Martins, Ph.D., Early Development Scientist, Oxford Biomedica

"Jess allows us to immediately identify potential autophagy biomarkers as they are upregulated or downregulated in response to treatment. This allows us to use more advanced statistical techniques such as principal component analysis and hierarchal clustering to recognize key correlations in our research with ease"

John K. Blackwood PhD, Head of Biology, and Jakub Stefaniak PhD, Samsara Therapeutics

"The introduction of an Abby will enable us to answer important questions quicker, such as identifying the disease driving mechanism and molecules surrounding osteoarthritis. Moving away from the tedious manual western blotting process, which can take up to two days, and introducing automation will speed up time to data and provide increased sensitivity and accuracy."

Dr. Mario Rothbauer, Postdoc Researcher, Department of Orthopedics and Trauma Surgery, Medical University of Vienna

Showing  1 - 5 of 32 testimonials Showing All

More Information About Leo System

Description Leo System
Max samples per run 100
Run time 3 hours
or
5 hours with RePlex
Minimal sample volume required 3-5 μL/well
Detection Chemiluminescence
RePlex™ (Strip & ReProbe Replacement) Yes
Standard Fluorescence (NIR/IR) No
Stellar™ (NIR / IR fluorescence detection) No
Dimensions (H x W x D) 72 x 74 x 74 cm / 28.3 x 29.1 x 29.1 inch
Weight 136 kg / 300 lbs