Jellyfish Proteins Could Revolutionize Biology and Medicine

Researchers are tapping into the quantum properties of fluorescent proteins to create powerful new sensing tools.

Mar. 3, 2026 at 9:35pm

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Crystal jellyfish, known for their ethereal green glow, hold a secret that could reshape the future of biological research and medical diagnostics. Scientists are now harnessing the quantum properties of these fluorescent proteins, transforming them into tools with unprecedented sensitivity and potential for applications ranging from early disease detection to mapping brain activity.

Why it matters

Fluorescent proteins are ubiquitous in biology labs, but the latest advancements aren't about simply making these proteins brighter. Researchers are unlocking their hidden quantum capabilities, which could lead to the development of quantum sensors far more sensitive than existing technologies. These sensors have the potential to detect incredibly faint signals, opening doors to groundbreaking diagnostic and therapeutic approaches.

The details

By tapping into the triplet state - a temporary, non-fluorescent state electrons enter when excited by light - scientists are realizing this phenomenon is key to creating quantum sensors. These sensors could detect minuscule magnetic fields generated by firing neurons, identify subtle flows of ions, or pinpoint trace amounts of free radicals, which are indicators of cellular stress and early-stage cancer. Researchers are also exploring the ability to remotely switch these protein-based sensors on and off, paving the way for advanced imaging and targeted therapies.

  • Researchers have been harnessing the power of proteins from crystal jellyfish, like green fluorescent protein (GFP), for decades to illuminate the inner workings of cells.

The players

Peter Maurer

A quantum engineer at the University of Chicago who explains that these fluorescent proteins can be turned into a qubit, the basic unit of quantum information.

Jin Zhang

A biosensor developer at the University of California, San Diego (UCSD) who notes the ongoing surprises in protein capabilities and expresses excitement about the possibilities these quantum variants might unlock.

Ania Jayich

A physicist at the University of California, Santa Barbara who says the small size of fluorescent proteins and their ability to be precisely positioned within cells using genetic engineering is a significant advantage over other quantum sensing technologies.

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What they’re saying

“These fluorescent proteins that everybody uses as a fluorescent label can actually be turned into a qubit.”

— Peter Maurer, Quantum Engineer

“We often struggle with the sensitivity of fluorescent labels. I'm excited about the possibilities these quantum variants might unlock.”

— Jin Zhang, Biosensor Developer

“The gain you obtain from [the small size and precise positioning of fluorescent proteins] is huge.”

— Ania Jayich, Physicist

What’s next

Researchers are actively investigating a wide range of applications for quantum biosensors, from early disease detection to mapping semiconductor performance. The field is rapidly gaining traction, attracting funding from organizations like the US National Science Foundation and the UK Quantum Biomedical Sensing Research Hub.

The takeaway

This surge in quantum biosensing is part of a larger 'second revolution' in quantum physics, where scientists are intentionally manipulating quantum properties to create powerful new technologies. The potential applications of these quantum-enabled fluorescent proteins are vast, from unlocking insights into brain activity and neurological diseases to enabling advanced imaging and targeted therapies.