PIPages
Labs

William Grover

University of California-Riverside, CA·Biomedical Engineering

Many things biologists study live in liquid: cells, microorganisms, fish embryos, insect larvae, sprouting seeds, hydrogels and pills. Weighing them on an ordinary laboratory balance is hard or impossible while they sit in fluid.

Fields

Biomedical Engineering

Engineering

Chemistry

Topics

vibrating tube sensor

resonance frequency

mass measurement

Grants
1 known grant, through Jan 2027

What they work on

  1. Develop a low-cost vibrating tube sensor, a glass tube shaken at its resonance frequency, that records the mass of a millimeter-sized biosample in fluid as a shift in that frequency.
  2. Build an automated instrument that continuously monitors the mass, volume and density of microgram-sized biosamples in any liquid, with nanogram-scale resolution, over any chosen timescale.
  3. Refine the instrument using feedback from five UC Riverside beta-testing labs that apply it in toxicology, biomaterials, drug delivery, entomology and plant science.
  4. Release a free, open-source design that other researchers can replicate, with undergraduates helping build the beta units.

More about the research

Their mass also changes in meaningful ways over time. An organism gains mass as it grows, and a biodegradable material loses mass as it dissolves. Tracking those changes by hand is slow and labor-intensive, which leaves a gap in what researchers can measure.

Why it matters

Biologists studying growth, toxicity, drug release or material breakdown often cannot easily weigh small samples that live in liquid. An open, low-cost instrument that tracks mass and density automatically could let labs in toxicology, drug delivery, entomology and plant science measure these changes continuously. Because the design is meant to be replicable and suitable for future commercial production, many labs could build or eventually buy it.

Known grants

From NIH and NSF research grants. Labs often have other funding we can't see.

Vibrating tube sensors: A versatile and low-cost instrument for continuously monitoring the mass, volume, and density of any microgram-sized biosample in fluid

NSF · Feb 2022 – Jan 2027

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The school

University of California-Riverside: 21 labs on PI Pages, $232M a year on research, 328 research doctorates a year.

More about University of California-Riverside

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