Smart Nanoparticles Use Hydrogen Gas to Kill Cancer Cells
- Authors
- Chunxue Dai, Yingjiao He, Hongyan Lu, Xiaotong Feng, Naling Long, Qile Song, Yuwei Li, Yifan Wang, Lisandra L Martin, Cundong Fan, Dongdong Sun
- Journal
- Biomaterials
- Year
- 2025
- DOI
- 10.1016/j.biomaterials.2025.123635
- Study Type
- Cell Culture
- Outcome
- Positive
- Peer Reviewed
- Yes
- Country
- China
- Health Condition
- Cancer
- Body System
- Cellular
TL;DR
Researchers created a light-activated nanoparticle that safely releases hydrogen and selenium inside tumors to kill cancer cells by triggering oxidative stress and cell death.
Key Finding
A palladium-selenium nanoparticle that releases hydrogen gas when exposed to near-infrared light triggered ferroptosis and inhibited tumor growth in mice, with no observed toxic side effects.
Summary
Researchers designed a tiny nanoparticle made of palladium and selenium that can store and release hydrogen gas when exposed to near-infrared light (a type of invisible light). In laboratory tests with cancer cells and in mice, this nanoparticle accumulated in tumors and released hydrogen, which triggered a type of cancer cell death called ferroptosis (a process where cells accumulate damaging molecules). The nanoparticle slowed cancer cell growth and reduced tumor size in mice without apparent toxic effects.
Practical Takeaway
This is early-stage laboratory research in cells and animals only—not yet tested in humans. While the results are promising for a potential future cancer therapy, this nanoparticle approach is fundamentally different from drinking hydrogen water and cannot be compared to it. Many promising laboratory findings do not translate to human treatments, so much more research would be needed before any clinical applications.
Abstract (excerpt)
Hydrogen therapy as an emerging strategy for anticancer medicine is attracting attention. However, the limitations of effective hydrogen storage and release have hindered its development and application for hydrogen therapy. Herein, a high hydrogen storage nanoquadruplex (PdH0.2)4Se based…