Laser Drilling Improved Blood Oxygenator Performance
Researchers developed a low-cost membrane using glass substrates to increase oxygen transfer efficiency for clinical use.
Updated on Oct. 8, 2026 in Materials Science
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Researchers have demonstrated a new semipermeable membrane for microfluidic blood oxygenators using laser micro-drilled borosilicate glass. The research-stage development shows improved oxygen transfer performance compared to conventional silicon-based models.
Why it matters
Current fabrication methods like deep reactive ion etching are prohibitively expensive and difficult to scale for clinical use. This new approach could lower manufacturing costs while improving gas-transfer efficiency in ECMO devices.
The membrane achieved an oxygen transfer volume of 0.59%, more than double the 0.28% observed with traditional deep reactive ion etching. The device utilizes a 400-micrometer-thick glass substrate with 10-micrometer pores spaced at a 20-micrometer pitch.
The players
Researchers
An unidentified academic team focused on the development of microfluidic devices and advanced membrane materials.
The details
The design features laser micro-drilling to create uniform arrays of through-pores, which eliminates the non-porous support regions that typically limit diffusion. These glass substrates are bonded to a polydimethylsiloxane layer—a gas-permeable, rubber-like silicone material—to facilitate oxygen transfer. By moving away from deep reactive ion etching, a plasma-based process that is both costly and complex, the researchers were able to create a more efficient and scalable architecture for microfluidic oxygenators.
Timeline
October 8, 2026: The research results were published.
The Tech Race
This development challenges the established dependence on costly silicon-based fabrication techniques currently limiting the accessibility of ECMO devices. By providing a scalable glass-based alternative, the research aims to bridge the gap between high-performance prototypes and affordable clinical hardware.
This research is at an early experimental stage and not yet ready for hospital implementation. If successful, it could reduce the manufacturing costs of neonatal oxygenators from $100,000 to an estimated $8,500, potentially increasing the availability of respiratory support equipment.
The takeaway
This study demonstrates that simpler fabrication methods can outperform legacy silicon techniques in oxygen transfer volume. Interested observers should track the transition of this glass-based membrane from laboratory bench testing to prototype reliability trials.
Further reading
For more on the latest research in high-performance synthetic materials, visit our Materials Science section.
Source note: This article includes information reported by Nature.
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