News / Africa

iPhone Becomes Low-Cost Microscope

The handheld device that has transformed the way people communicate is also changing the medical field. Credit: Issac Bogoch
The handheld device that has transformed the way people communicate is also changing the medical field. Credit: Issac Bogoch

Multimedia

Audio
Joe DeCapua
The Apple iPhone can be used for lot of things – making calls, playing games and sending pictures, video and text. Scientists say it also can be converted into a low-cost microscope to detect worm-related infections in children.

Dr. Issac Bogoch, an infectious disease specialist at Toronto General Hospital, says with a few dollars and a little ingenuity, the "smart phone" is turning into an important medical diagnostic tool in places that often lack such techology, like rural Africa. 

“I used an iPhone 4s and that’s simply because I just happen to own one, but any smart phone with a decent camera and a zoom-in function should work just fine," he said. "Then we bought a ball lens, which is about eight dollars. We just got it online. And then we used some double-sided tape to stick the ball lens to the lens of the camera on the iPhone.”


Bogoch is the lead author of a new study on the iPhone-turned-microscope. It appears in the American Journal of Tropical Medicine and Hygiene.

“We got this idea from reading some of the medical literature, and we saw that some other groups had published neat images that were taken in the laboratory using smart phones and converting them into microscopes," he said. "But we thought that this was a really neat concept and we wanted to take it to real world and practical settings."

Bogoch and his colleagues from Massachusetts General Hospital and the Swiss Tropical and Public Health Institute tested their idea on Pemba Island in Tanzania.

“We were looking at school-age children that are unfortunately disproportionately affected by intestinal parasitic infections. And these infections affect over a billion people on the planet,” he said.

The make-shift microscope could detect parasitic infections to varying degrees. The best results came in detecting moderate to heavy infections. Results were not as good for mild infections. However, Bogoch thinks that will change when the technology improves.

“We took slides. We were looking for intestinal parasites. So these are stool samples. The slide had a little bit of cellophane covering the stool sample and we put the slide very close to our ball lens, which was stuck up against the iPhone. And we were able to zoom-in and we could see the parasites that we were looking for pretty easily.”

Intestinal worms include hookworms and round worms. They can cause chronic anemia and malnutrition. Typical diagnosis is done by examining a stool sample with a conventional light microscope.

Bogoch said that the next step is to improve the image quality. He says the smartphone microscope could greatly enhance disease control in poor, rural areas. He added that treatment for many intestinal parasites is generally widely available and very well tolerated.

If health workers in the field are unsure what the image means, he says they could text or email it to experts elsewhere and get a diagnosis a short time later.

You May Like

Video Iran Nuclear Deal Becomes US Campaign Issue

Voters in three crucial battleground states - Florida, Ohio and Pennsylvania - overwhelmingly oppose nuclear deal with Iran More

Al-Qaida's Syria Affiliate Reemerges

Jabhat al-Nusra has rebounded, increasingly casting itself as a critical player in battle for Syria’s future More

Lessons Learned From Katrina, 10 Years Later

FEMA chief Craig Fugate says key changes include better preparation, improved coordination among state, federal assistance agencies More

This forum has been closed.
Comments
     
There are no comments in this forum. Be first and add one

Featured Videos

Your JavaScript is turned off or you have an old version of Adobe's Flash Player. Get the latest Flash player.
Colombians Flee Venezuela as Border Crisis Escalatesi
X
August 27, 2015 2:08 AM
Hundreds of Colombians have fled Venezuela since last week, amid an escalating border crisis between the two countries. Last week, Venezuelan President Nicolas Maduro ordered the closure of a key border crossing after smugglers injured three Venezuelan soldiers and a civilian. The president also ordered the deportation of Colombians who are in Venezuela illegally. Zlatica Hoke reports.
Video

Video Colombians Flee Venezuela as Border Crisis Escalates

Hundreds of Colombians have fled Venezuela since last week, amid an escalating border crisis between the two countries. Last week, Venezuelan President Nicolas Maduro ordered the closure of a key border crossing after smugglers injured three Venezuelan soldiers and a civilian. The president also ordered the deportation of Colombians who are in Venezuela illegally. Zlatica Hoke reports.
Video

Video Is China's Economic Data Accurate?

Some investors say China's wild stock market gyrations have been made worse by worries about the reliability of that nation's economic data. And some critics say the reports can mislead investors by painting an unrealistically-strong picture of the economy. A key China scholar says Beijing is not fudging ((manipulating)) the numbers, but that the economy is evolving quickly from smoke-stack industries to services, and the ways of tracking new economic activity are falling behind the change. V
Video

Video Next to Iran, Climate at Forefront of Obama Agenda

President Barack Obama this week announced new initiatives aimed at making it easier for Americans to access renewable energy sources such as solar and wind. Obama is not slowing down when it comes to pushing through climate change measures, an issue he says is the greatest threat to the country’s national security. VOA correspondent Aru Pande has more from the White House.
Video

Video Shipping Containers Provide Experimental Housing

Housing prices around the San Francisco Bay area are out of reach for many people, so some young entrepreneurs, artists and tech industry workers are creating their own houses using converted shipping containers. But as VOA's Mike O’Sullivan reports from Oakland, the effort requires ingenuity and dealing with restrictive local laws.
Video

Video Arctic Draws International Competition for Oil

A new geopolitical “Great Game” is underway in earth’s northernmost region, the Arctic, where Russia has claimed a large area for resource development and President Barack Obama recently approved Shell Oil Company’s test-drilling project in an area under U.S. control. Greg Flakus reports.
Video

Video Philippine Maritime Police: Chinese Fishermen a Threat to Country’s Security

China and the Philippines both claim maritime rights in the South China Sea.  That includes the right to fish in those waters. Jason Strother reports on how the Philippines is catching Chinese nationals it says are illegal poachers. He has the story from Palawan province.
Video

Video Technique May Eliminate Drill-and-Fill Dental Care

Many people dread visiting dentists because they're afraid of drills. Now, however, a technology developed by a British firm promises to eliminate the need for mechanical cleaning of dental cavities by speeding a natural process of tooth repair. VOA’s George Putic reports.
Video

Video China's Spratly Island Building Said to Light Up the Night 'Like A City'

Southeast Asian countries claim China has illegally seized territory in the Spratly islands. It is especially a concern for a Philippine mayor who says Beijing is occupying parts of his municipality. Jason Strother reports from the capital of Palawan province, Puerto Princesa.
Video

Video Ages-old Ice Reveals Secrets of Climate Change

Ice caps don't just exist at the world's poles. There are also tropical ice caps, and the largest sits atop the Peruvian Andes - but it is melting, quickly, and may be gone within the next 20 years. George Putic reports scientists are now rushing to take samples to get at the valuable information about climate change locked in the ice.
Video

Video French Experiment in Integrating Roma Under Threat

Plans to destroy France’s oldest slum have sparked an outcry on the part of its Roma residents. As Lisa Bryant reports from the Paris suburb of La Courneuve, rights groups argue the community is a fledgling experiment on integrating Roma who are often outcasts in many parts of Europe.
Video

Video Kenyans Turn to Agriculture for Business

Each year Kenyan universities continue to churn out graduates for the job market despite the already existing high rate of unemployment among youth in the country. Some of these young men and women have realized that agriculture can be as rewarding as any other business or job, and they are resorting to agribusiness in large numbers as a way of tackling unemployment. Rael Ombuor reports for VOA.
Video

Video First Women Graduate Elite Army Ranger School

Two women are making history for the U.S. Army by proving they are among the toughest of the tough. VOA's Carla Babb reports from Fort Benning, Georgia as 94 men and those two women rise as graduates of the difficult Ranger school.

VOA Blogs