A recent incident involving a power bank catching fire on a commercial flight has reignited concerns around the safety of lithium-ion batteries during air travel. While no injuries were reported, the event has served as a stark reminder of the potential hazards associated with carrying electronic devices onboard. With the growing reliance on gadgets like smartphones, tablets, and portable chargers, travellers must understand the risks these batteries can pose and how to handle them responsibly.
Lithium-ion batteries are commonly used due to their high energy density and rechargeability. However, they are also sensitive to damage, overheating, and manufacturing defects—all of which can lead to thermal runaway, a chain reaction that causes the battery to overheat, ignite, or even explode. In the confined space of an aircraft, such incidents can quickly escalate into dangerous situations.
Airlines and aviation authorities have long established guidelines to minimize these risks. Power banks and spare lithium-ion batteries are typically allowed only in carry-on luggage and must not exceed specific watt-hour (Wh) ratings. Passengers are also advised to avoid charging devices unattended or using damaged batteries and to report any unusual heat or swelling immediately to cabin crew.
Meanwhile, in a completely different field of science, a groundbreaking development has emerged from Japan that could reshape cancer research. A team of scientists, led by Professor Jun Suzuka, has created a hydrogel capable of reverting cancer cells back to cancer stem cells. This “double network” (DN) gel, detailed in the journal Nature Biomedical Engineering, has shown the ability to rapidly reprogram differentiated cancer cells.
The breakthrough is significant because cancer stem cells are believed to be at the root of tumor growth and recurrence. By converting regular cancer cells back into their stem-like state, researchers can better study how tumors form, evolve, and resist treatment. While the implications are still being explored, this novel hydrogel may one day play a crucial role in developing more effective cancer therapies.
Together, these stories underline the importance of both technological caution and innovation—whether it’s ensuring passenger safety in flight or rethinking the foundations of modern medicine.
