The spongy graphene known as laser-induced graphene (LIG) is extremely resistant to biofilm formation and exhibits antibacterial properties, according to researchers at Rice University.
The inherent anti-fouling characteristics make LIG a candidate for possible use in water treatment, oil drilling operations, hospitals, and various underwater applications.
Amped-up antibacterial traits
The already-known antibacterial traits of LIG were greatly enhanced when researchers applied low voltage current, ranging from from 1.1 to 2.5 V. The researchers likened the graphene to a bug zapper for bacteria.
While viewing a solution under a microscope, the researchers passed a 1.5 V current through a solution using LIG electrodes. A test showed that aeruginosa bacteria completely vanished in 30 second. At 2.5V, surface bacteria almost completely disappeared in one second.