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Maximize throughput and process more samples in a day.
Leo can dramatically increase your throughput, with analysis of up to 100 samples per 3 hours run so you can get 4-times the throughput of Jess™ or Abby™ Systems and 5-times the throughput of Peggy Sue or Sally Sue Systems. Like other Simple Western Systems, Leo automates the protein separation and immunodetection of traditional western blotting, giving you fully analyzed results in just 3 hours. Everything happens inside a capillary, and the Leo precisely controls the protein separation and reagent additions and incubations, even the detection.
Run larger experiments for analytical grade protein quantitation.
With space for up to 96 unique samples and 4 molecular weight ladders per run, now you can run full standard curves, quality control (QC) samples, blanks, controls, references, and replicates alongside your unknown samples for robust analytical-grade quantitation of protein biomarker concentration and protein expression.
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Design high specificity quantitative immunoassays, even in crude lysates and tissue homogenates.
Leo separates sample proteins by molecular weight before immunodetection, offering the ability to resolve non-specific binding and impart additional specificity in peak detection compared to other quantitative immunoassays that rely solely on immunodetection. After separation and immobilization of sample proteins, the sample matrix is flushed thoroughly from the capillary, so immunodetection occurs within an idealized buffer environment, minimizing cross-reactivity and non-specific binding for complex sample analysis.
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Quantify protein isoforms and size variants.
Simple Western is the only quantitative immunoassay technology that adds electrophoretic separation of sample proteins before immunodetection, enabling quantification of protein isoforms that differ in size. Using Simple Western technology, isoforms can be separated by size and subsequently detected using pan-target antibodies that bind to all isoforms present in the sample. The Leo System provides robust quantitative immunoassays that distinguish intact vs cleaved isoforms, fragments, aggregates, degradation products, oligomers, and more.
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Get more results from your precious sample.
Detect up to 8 targets from just 3–5 µL of sample. Use the RePlex™ Module, an automated stripping and re-probing replacement, to run two immunoassays in series or run an immunoassay followed by total protein detection for more accurate protein expression normalization. Plus, resample up to 4 times from the same well for analysis in independent capillaries, thus avoiding any concerns about antibody cross reactivity.
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Speed up your Simple Western method development and optimization.
Determine optimal assay conditions on the Leo System in as little as a day. You can test multiple sample concentrations, antibody titration series, and positive and negative controls in 100 independent capillaries in one run. In addition, Leo includes high dynamic range (HDR) detection, like Jess and Abby.
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One system that meets your needs from discovery through analytical development and commercialization.
Maintain flexibility in your assay design and throughput as you progress from discovery through IND and into commercialization. You have the option to run 1-4 cartridges (25-100 samples) per run and detect up to 8 targets per sample. Start developing your assay on the Leo System with one cartridge at a time and scale up to maximal throughput when needed. Leo allows you to design assays capable of relative or absolute protein quantitation. Save time by developing and scaling up on the same system, enabling you to reach your next milestone faster.
Confidence to meet regulatory guidelines for bioanalytical method validation.
Compass™ Software for Simple Western™ Technology is the software package that all Simple Western instruments use to acquire, manage, and analyze data. Compass for Simple Western Software 7.0 has all the tools required for 21 CFR Part 11 compliance. Leo can boost your confidence to generate data that meets regulatory guidelines for bioanalytical method validation.
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