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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VHP warns of statewide stir in Karnataka against move to ease cattle transport law
Udupi (Karnataka) (PTI): The VHP on Saturday demanded the immediate withdrawal of a proposed amendment to the Karnataka Prevention of Slaughter and Preservation of Cattle Act, 2020, accusing the state government of weakening a law that has deterred illegal cattle transport.
The organisation's Go Raksha Wing, Karnataka South, has also announced district-level protests on December 8.
According to officials, the existing law mandates a bank guarantee for securing the release of vehicles seized for alleged illegal cattle transportation.
On December 4, the state Cabinet proposed an amendment enabling the release of such vehicles on an indemnity bond instead.
Addressing reporters in Udupi, VHP leader and Prantha Goraksha Pramukh Sunil K R, said the government's move amounted to "sympathy for cattle lifters" and claimed that it was part of broader actions "targeting Hindus".
He argued that the law in its current form is stringent and has played a crucial role in reducing incidents of illegal cattle transport and theft.
Under the Act, vehicles involved in offences can be surrendered and, upon conviction, permanently seized by authorities. "Diluting these provisions will embolden offenders," Sunil said.
The VHP leader warned that easing the process of vehicle release would not only encourage violators but also result in rising cruelty against cattle.
Sunil further claimed that the strict enforcement of the 2020 law had brought down cases of cattle-related offences significantly. Rolling back these provisions, he said, could reverse those gains and would lead to an increase in illegal transport.
He reiterated that the government must reconsider its decision and preserve the integrity of the existing law.
