Cellphone-based tech could cut lab visits for blood tests
New York: Researchers have developed a cellphone-based blood test technology that can provide immediate results in the comfort of one's home or a doctor's clinic, thereby cutting visits to the laboratory.
In a paper published in the journal Biosensors and Bioelectronics, the researchers detailed a mobile version of the "Enzyme Linked Immunosorbent Assay" (ELISA), the gold standard technique used to detect the presence of an antibody or antigen.
"ELISA is an important technology for biochemical analysis of proteins and hormones and is critical for the diagnosis of many diseases, such as HIV and Lyme Disease," said corresponding author Anna Pyayt, Assistant Professor at the University of South Florida in Tampa, US.
"But the machines required for the incubation and reading are expensive and bulky," Pyayt said.
Instead of sending patients to a laboratory, the new cellphone-based technology - Mobile Enzyme Linked Immunosorbent Assay (MELISA) -- allows for the very same test to be conducted in the doctor's office, clinic or even in a remote area.
"The MELISA allows patients to undergo testing and obtain results at point-of-care," Pyayt said.
The device accurately measures progesterone levels, a key hormone that impacts female fertility and is indicative of some cancers.
It consists of a water bath heater that incubates samples at a target temperature and analyses them via images taken by mobile phone.
The device uses colour analysis to determine the RGB (red, green, blue) colour components of each sample.
The blue colour component is used for further analysis due to its sensitivity to the changes in progesterone concentration.
"It is designed to make biomedical testing simple and affordable. When low cost testing can be integrated with routine clinic visits, this would greatly improve the quality of healthcare and detect worrisome signs earlier," Pyayt added.
The portable MELISA weighs less than half a kg, and the researchers believe that it has the potential help older patients suffering chronic conditions and those across the world.
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Food delivery agent intervenes to stop street fight in Delhi's Dwarka, stabbed to death
New Delhi (PTI): A 32-year-old food delivery executive was stabbed to death when he allegedly intervened in a violent altercation between two groups in southwest Delhi's Dwarka, police said on Monday.
The deceased has been identified as Govind Jha, a resident of Mohan Garden.
Three others sustained stab injuries in the incident and are currently undergoing treatment at a hospital, they said.
Authorities also cautioned against attempts to give the incident a communal colour.
According to the police, Jha was on his way to work on Sunday night when he noticed a street fight taking place at Rajapuri in Madhu Vihar area of Dwarka. The altercation involved two men pitted against three others, who were later identified as Parvesh, Anish and Rohit.
"Jha stopped at the spot and attempted to intervene. During the scuffle, the two men allegedly pulled out knives and began stabbing Parvesh, Anish and Rohit. When Jha tried to intervene, he was also attacked," a police officer said.
All four injured persons were rushed to a nearby hospital, where Jha succumbed to his injuries during treatment. The other three men are under medical observation.
Police said the accused fled the spot after the incident, and multiple teams have been formed to identify and apprehend them.
Meanwhile, Deputy Commissioner of Police (Dwarka) Kushal Pal Singh, in a statement, said that some messages circulating on social media are attempting to give a communal angle to the incident.
"In the incident, four people suffered stab injuries and were admitted to the hospital. One person died at the hospital, and the remaining three are undergoing treatment. The victims belong to two different communities. The accused stabbed all four victims. Dwarka Police is conducting a search for the accused," the DCP said.
"There is no communal angle to the incident. Strict action will be taken against those spreading false information," he said.
