AI device uses sound to repel malaria-carrying mosquitoes

A biomedical engineering student at the University of Southampton has developed an AI-powered device designed to identify and repel mosquitoes that transmit malaria. The technology uses artificial intelligence to recognise mosquito species through their wingbeat sounds and generates targeted acoustic signals intended to disrupt their navigation. Unlike conventional insect repellents, the prototype requires no chemicals or internet connection. Although its effectiveness has yet to be demonstrated in large-scale field studies, the innovation could offer a new approach to malaria prevention, particularly in regions with limited healthcare infrastructure.

The device, called ISARS (Intelligent Species-Specific Acoustic Repulsion System), was developed by 23-year-old Ulrich Mefenya Tanetsing, who grew up in Cameroon and experienced malaria himself during childhood. His personal experience with the disease motivated him to explore technological alternatives to existing mosquito control methods.

AI identifies mosquitoes

ISARS combines acoustic detection with artificial intelligence to distinguish mosquito species based on the characteristic sounds produced by their wings. The system is designed to identify species associated with malaria transmission and subsequently emit targeted sound frequencies intended to interfere with their navigation. Unlike conventional electronic mosquito repellents, which typically produce repetitive sounds, ISARS continuously adjusts its acoustic output. According to Tanetsing, this adaptive approach could help prevent mosquitoes from becoming accustomed to a particular sound frequency.

The compact device operates without chemical substances, internet connectivity or complex infrastructure. Its acoustic output is also designed to remain sufficiently quiet to avoid disturbing people while they sleep. These characteristics could make the technology particularly relevant for households in remote communities where access to electricity, healthcare services and conventional mosquito control products may be limited.

The idea originated when Tanetsing watched a documentary describing how submarines use acoustic technology to influence the movements of whales. He subsequently considered whether similar principles could be applied to mosquitoes, which also use acoustic signals in aspects of their behaviour. However, the underlying concept still requires scientific validation. The announcement does not provide quantitative results demonstrating how effectively ISARS identifies malaria-carrying mosquitoes or prevents bites under real-world conditions.

Prevention remains essential

Malaria continues to represent a major global public health challenge, particularly in sub-Saharan Africa. The disease is caused by Plasmodium parasites transmitted through the bites of infected female Anopheles mosquitoes. Hundreds of thousands of people die from malaria annually, with young children disproportionately affected. According to figures cited by the University of Southampton, children under five account for approximately 76% of malaria deaths in sub-Saharan Africa.

Current prevention strategies include insecticide-treated mosquito nets, indoor insecticide spraying and other protective measures. However, insecticide resistance among mosquito populations presents an increasing challenge. Practical barriers, including the availability and consistent use of protective equipment, can also limit prevention efforts. Tanetsing believes a low-cost acoustic device could eventually complement existing approaches by reducing exposure to mosquito bites without relying on insecticides.

Nevertheless, acoustic mosquito repellents have historically faced questions about their effectiveness. Demonstrating that ISARS can reliably repel relevant mosquito species will therefore be essential. Field studies will need to establish whether the technology reduces mosquito bites and, ultimately, malaria transmission. Until such evidence becomes available, established preventive measures remain necessary.

Practical application

Tanetsing is among ten finalists in the national Champion of Champions student innovation competition, organised by the Engineers and Scientists in Business Fellowship. He is scheduled to present ISARS at the Royal Academy of Engineering in London in November, competing for a share of £16,500 in funding and business mentoring. The prototype will also be presented at VentureFest South's Festival of Innovation on 18 November.

For the technology to progress beyond its current development stage, further research will be needed into mosquito species recognition, acoustic effectiveness, durability and performance in different environments. Independent testing will also be important to establish whether the device offers measurable advantages over existing prevention methods. If these challenges can be addressed, AI-guided acoustic technology could eventually become an additional tool in malaria prevention, particularly where affordable and easily deployable solutions are needed.