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Private Company

Total funding raised: $3.2M

Overview

Fluxus is a San Francisco-based innovator in ultrasensitive bioanalysis, operating at the intersection of optofluidics, microengineering, and assay development. Its core technology platform is designed for single-molecule counting, targeting a significant gap in clinical research and diagnostics by enabling highly sensitive detection of any analyte in any setting. Acquired by Fujirebio Holdings in 2022, the company now blends Silicon Valley agility with the resources of a multinational corporation to commercialize its detection systems and assay solutions.

Synthetic BiologyMetabolic

Technology Platform

Optofluidic platform combining advanced photonics and microfluidics for ultrasensitive, single-molecule detection of a wide range of biomolecular targets in configurable formats.

Funding History

1
Total raised:$3.2M
Seed$3.2M

Opportunities

The acquisition by Fujirebio provides a direct channel into the global IVD market and resources for long-term development.
The core technology addresses a major unmet need for detecting ultra-low-abundance biomarkers, opening opportunities in early disease detection, liquid biopsies, and precision monitoring across oncology, neurology, and infectious diseases.

Risk Factors

Key risks include the technical challenge of translating a complex optofluidic platform into a robust, manufacturable, and clinically validated product.
The company also faces intense competition in the ultrasensitive detection space and must overcome barriers to adoption by convincing the market to switch to a new, unproven platform.

Competitive Landscape

Fluxus competes in the ultrasensitive bioanalysis market against established players like Quanterix (Simoa technology) and Meso Scale Diagnostics, as well as other companies developing digital ELISA and single-molecule detection methods. Its differentiation hinges on the specific performance, flexibility, and cost profile of its optofluidic platform.