Excellent for Low-Concentration Protein Samples

August 13, 2026

BlueskyReddit
Houston Methodist

Overall

Quality of Results

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Questions/Comments

Company:

ThermoScientific

Product Name:

Micro BCA Protein Assay Kit

Catalog Number:

23235

Is a very reliable and sensitive assay for measuring low protein concentrations. I find it especially useful for exosome protein extraction, where sample amounts can be limited and accurate quantification is important before downstream analysis.

Experimental Design and Results Summary

Application

Sensitive quantification of low protein concentrations, especially useful for exosome-derived protein samples where total protein yield may be limited.

Starting Material

exosomes

Tips

The main drawback is that the assay can consume a relatively large amount of reagents and laboratory supplies, especially when running standards, replicates, and multiple samples, so the kit can be used up quickly.

Results Summary

The Micro BCA assay provides reliable and sensitive protein quantification for low-yield samples such as exosome extracts, with consistent and reproducible results.

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Summary

The Good

Highly sensitive and reliable for low-concentration protein samples, making it especially useful for exosome protein quantification.

The Bad

The assay uses a substantial amount of reagents and consumables when running standards and replicates, so supplies can be depleted quickly.

The Bottom Line

An excellent and sensitive protein assay for exosome samples, although it can consume reagents and supplies fairly quickly.

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