Hydrogen Nanobubbles Protect Cells from Heavy Metal Toxicity
Mitigating environmental toxicity with hydrogen nanobubbles: A mitochondrial function-based approach to ecological restoration
Research hubs: Oxidative Stress
This research was done on cells or tissue in a lab, not in people or animals.
- Evidence type
- Laboratory study (cells or tissue)
- Authors
- Han Bao, You Zhang, Shuang Lv, Shu Liu, Wenhong Fan
- Journal
- Environment International
- Year
- 2024
- PMID
- 39515037
- Study Type
- Algae
- Delivery
- Water (Electrolysis)
- Dose
- hydrogen nanobubble water samples with varying nanobubble densities
- Duration
- 1 day or less
- Outcome
- Positive
- Peer Reviewed
- Yes
- Cited by
- 13 (OpenAlex, as of November 2026)
- Country
- China
TL;DR
Tiny hydrogen-filled bubbles (nanobubbles) in water can help protect green algae from metal-induced stress by improving the algae's energy-producing parts (mitochondria).
Key Finding
Hydrogen nanobubbles enhanced the delivery of hydrogen into algae cells and significantly improved mitochondrial function under oxidative stress, with protection increasing as the number of nanobubbles increased.
Summary
Researchers created water containing tiny hydrogen bubbles (nanobubbles) and tested whether they could protect algae cells from damage caused by toxic heavy metals like copper and cadmium. They found that the hydrogen nanobubbles were better at delivering hydrogen into the cells and protecting them by reducing harmful molecules called reactive oxygen species. The nanobubbles also improved how well the cells' energy-producing structures (mitochondria) worked by boosting their activity and helping them transfer electrons more efficiently.
Practical Takeaway
This study was conducted in algae cells in a laboratory setting, not in humans, so it cannot directly tell us whether hydrogen nanobubbles would have similar effects in people. The findings suggest hydrogen nanobubbles may have potential for protecting cells from oxidative stress, but much more research—including human studies—would be needed before any health claims could be made.
Abstract (excerpt)
In biological systems, nanobubbles (NBs) effectively enhance hydrogen molecule retention and scavenging reactive oxygen species (ROS), but the underlying mechanisms remain elusive. To investigate this, we prepared hydrogen NB water samples with consistent dissolved hydrogen levels but varying NB…