Blood analysis chip made so compact it can be connected to a smartphone

A Russian research team is building a plasmonic lab-on-a-chip designed to read blood chemistry from a small drop.

Image: Illustrative figure from a related study: Baek SH et al., Biosensors (2020), CC BY 4.0

Source: www1.ru, by Maksim Borisov (October 4, 2026). AI-generated summary by biochip.com, published . Not independently reviewed.

Key takeaways

  • The Institute of Automation and Control Processes is developing a lab-on-a-chip for real-time biochemical blood analysis.
  • Microscopic needle-like structures are intended to amplify weak photoluminescence signals from small blood drops.
  • The system remains under development, with no reported diagnostic accuracy, clinical validation, or release timeline.

Scientists at the Institute of Automation and Control Processes, part of the Far Eastern Branch of the Russian Academy of Sciences, are developing a compact lab-on-a-chip for analyzing the biochemical composition of blood. The proposed device would use a small blood sample and could eventually send results directly to a smartphone. Yuri Kulchin, vice president of the Russian Academy of Sciences and chairman of its Far Eastern Branch, announced the work. If the system performs as intended, it could shrink part of an optical blood-testing laboratory into a portable sensor.

Reading Blood With Light

The device is designed around induced photoluminescence, an optical technique that examines how molecules respond after exposure to light. Think of it as shining a light on a sample and recording its distinctive glow, much like identifying a song from its audio fingerprint.

Each molecule can produce a response across a particular range of light wavelengths, known as a spectrum. The team aims to use that response as a biochemical “passport” for the blood sample, because changes in blood composition, including those associated with disease, can alter the measured optical pattern.

Why the Chip Needs Microscopic Needles

Weak optical signals are the central technical obstacle. A tiny amount of blood may not naturally emit enough light for a compact device to detect reliably, especially when the goal is to replace larger laboratory equipment.

To address this problem, the researchers are building a plasmonic amplification system on the chip. It uses an array of microscopic needle-like structures intended to boost the optical signal from the sample. In simple terms, the structures are meant to act like a set of miniature antennas that concentrate and strengthen the light-based response.

That signal amplification is what could allow the device to work with small drops of blood rather than a larger specimen. The planned sensor would then infer information about the sample’s composition from its amplified optical response.

A Smartphone-Linked Lab-on-a-Chip

A lab-on-a-chip integrates steps normally performed with laboratory instruments onto a small device. Here, the intended role is not simply to display a result on a phone, but to create a compact sensing system that captures and analyzes an optical signal from blood.

The scientists are still creating the system, rather than reporting completed clinical validation or a finished consumer device. The smartphone connection is a future goal, and the announcement does not specify which blood conditions the chip can identify, how accurate it is, or when it could be available.

Why This Matters

Portable blood analysis depends on making measurements sensitive enough to work outside a conventional laboratory. By combining photoluminescence with a plasmonic nanostructure, the Far Eastern Branch team is targeting that core problem: extracting a useful signal from a very small biological sample.

The next meaningful milestones will be demonstrating that the chip can distinguish relevant biochemical changes consistently, then testing whether its results agree with established laboratory methods. Those steps will determine whether a smartphone-linked optical sensor can become a practical tool rather than a promising compact design.

Topics: Lab-on-a-chip

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