By being able to replace blood tests with a pulse of light from a smartphone connected device researchers have just made a major breakthrough.


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You might think your smartphone is a phone. Or a messaging or entertainment device … But you’d be wrong, increasingly it’s a tricorder that can be used to diagnose everything from cholesterol and high blood pressure, diabetes, pancreatic cancer, and skin cancer all the way through to ADHD, COVID-19, dementia, depression, genetic disorders, pathogens, PTSD, and even heart attacks. It’s amazing what you can do today with some sensors and Artificial Intelligence (AI).


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Now, in another medical first a team from the University of Queensland have figured out how to diagnose patients with malaria using light rather than having to use blood tests which could help save hundreds of thousands of lives annually.

Malaria is usually detected by a blood test, but scientists have devised a method using a device that shines a beam of harmless infrared light on a person’s ear or finger for five-to-10 seconds, it collects an infrared signature that is processed by a computer algorithm.

International team leader, Dr Maggy Lord from UQ’s School of Biological Sciences, said the technology would revolutionise how malaria is fought globally.

“Currently it’s incredibly challenging to test large groups of people, such as the population of a village or town – you have to take blood from everyone and mix it with a reagent to get a result,” Lord said. “But with this tool we can find out very quickly whether a whole village or town is suffering from, or carrying, malaria.”


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“The technique is chemical-free, needle-free and detects malaria through the skin using infrared-light – it’s literally just a flash on a person’s skin and it’s done, and the device is smart-phone operated, so results are acquired in real time,” added Lord.

The researchers believe the technology is the first step to eliminating malaria.

“According to the World Health Organisation malaria report, in 2020 there were an estimated 241 million cases worldwide and more than 600,000 died from malaria,” Lord said. “Most of the cases are in sub-Saharan Africa, where 90 per cent of deaths are children under five years old. The biggest challenge in eliminating the disease is the presence of asymptomatic people in a population who act as a reservoir for transmission by mosquitos. The World Health Organisation has proposed large-scale surveillance in endemic areas and our non-invasive, affordable and rapid tool offers a way to achieve that.”

The technology could also help tackle other diseases.


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“We’ve successfully used this technology on mosquitoes to non-invasively detect infections such as malaria, Zika and dengue,” Dr Lord said. “In our post-COVID world, it could be used to better tackle diseases as people move around the globe. We hope the tool could be used at ports of entry to screen travellers, minimising the re-introduction of diseases and reducing global outbreaks. It’s still early days, but this proof-of-concept is exciting.”

The research is published in PNAS Nexus.

UQ collaborated with the Instituto Oswaldo Cruz, Brazil, led by Dr Rafael Maciel de Freitas, who applied the tool to detect malaria in patients in the Amazon region.

The work was funded by Fiocruz INOVA Ideias Inovadoras, Conselho Nacional de Pesquisa e Desenvolvimento Científico e Tecnológico, Fundação Carlos Chagas Filho de Amparo a Pesquisa do Estado do Rio de Janeiro and by Advance Queensland Industry Research Fellowship and the National Health and Medical Research Council.

About author

Matthew Griffin

Matthew Griffin, described as “The Adviser behind the Advisers” and a “Young Kurzweil,” is the founder and CEO of the World Futures Forum and the 311 Institute, a global Futures and Deep Futures consultancy working between the dates of 2020 to 2070, and is an award winning futurist, and author of “Codex of the Future” series. Regularly featured in the global media, including AP, BBC, Bloomberg, CNBC, Discovery, RT, Viacom, and WIRED, Matthew’s ability to identify, track, and explain the impacts of hundreds of revolutionary emerging technologies on global culture, industry and society, is unparalleled. Recognised for the past six years as one of the world’s foremost futurists, innovation and strategy experts Matthew is an international speaker who helps governments, investors, multi-nationals and regulators around the world envision, build and lead an inclusive, sustainable future. A rare talent Matthew’s recent work includes mentoring Lunar XPrize teams, re-envisioning global education and training with the G20, and helping the world’s largest organisations envision and ideate the future of their products and services, industries, and countries. Matthew's clients include three Prime Ministers and several governments, including the G7, Accenture, Aon, Bain & Co, BCG, Credit Suisse, Dell EMC, Dentons, Deloitte, E&Y, GEMS, Huawei, JPMorgan Chase, KPMG, Lego, McKinsey, PWC, Qualcomm, SAP, Samsung, Sopra Steria, T-Mobile, and many more.

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