Navigation Links
Einstein's Tea Leaves Inspire New Blood Separation Technique

Scientists at Monash University in Australia have developed a process for rapidly and efficiently separating blood plasma at the microscopic level without any moving parts, potentially allowing doctors //to do blood tests without sending samples to a laboratory.

The new method uses the same principle that causes tea leaves to accumulate at the center of the bottom in a stirred teacup, a phenomenon first explained by Einstein in the 1920s.

Separating blood plasma from red blood cells, proteins and other microscopic particles is an essential step in many common medical tests, including those for cholesterol levels, drugs in athletes, blood types in donors and glucose levels in diabetics. Current testing requires samples to be taken in a doctor's office and sent off to a laboratory and analyzed with a large centrifuge, a process that can take several days.

In the new method, a tiny amount of blood enters a fluid chamber, and a needle tip is placed close to the surface of the blood at an angle. A voltage is applied to the needle, generating ions around its tip that repel the oppositely charged ions close to it. This creates an airflow known as "ionic wind" that sweeps across the surface of the blood, causing it to circulate. The microscopic particles in the blood travel in a downward spiral because of the needle's angle relative to the surface.

When the fluid begins to circulate, one might intuitively expect the microscopic particles such as red blood cells would be pulled to the outside wall of the chamber owing to centrifugal force. But because of a phenomenon called the 'tea leaf paradox,' the particles are instead pulled inward near the bottom of the chamber. Einstein proposed an explanation to this phenomenon in 1926 when he noticed that tea leaves collected at the center of the bottom of a stirred teacup instead of being expelled outward.

The tiny chamber of blood, like the teacup, is a cylinder of liquid that is rota ted at the top while the base remains stationary. To satisfy a zero-velocity condition at the base, an inward force near the bottom of the liquid is generated, suppressing the centrifugal force there. Thus the microscopic particles spiral inward toward the bottom of the chamber like a miniature tornado, leaving a clear layer of plasma above.

Yeo anticipates the technology could be incorporated into a chip roughly the size of a credit card. He said the devices could be produced cheaply with current manufacturing techniques -- about 50 cents per chip -- but could still be five to 10 years away from mass production.

Source-Newswise
'"/>




Related medicine news :

1. Cancer-causing Property Of Teflon Leaves US Regulators Concerned
2. Strange Theft Of HIV Infected Blood Leaves Authorities Puzzled
3. Mass Leave By Doctors Leaves Patients Helpless
4. Anti Inflammatory Evaluation Of Plumeria Acuminata Leaves
5. United Kingdom: Maternity Units Exposed! Leaves Much to Be Desired
6. No Smoking Day Inspires Many to Kick the Butt
7. Recommendations for Treatment of Blood Pressue
8. Blood Cells Capable of Regenerating Liver
9. Blood clots likely in long travel
10. Hemochromatosis Patients Blood is Safe
11. Blood transfusions beneficial after heart attacks
Post Your Comments:
*Name:
*Comment:
*Email:


(Date:6/26/2017)... ... June 26, 2017 , ... LARKR™ , an innovative new smartphone app ... across the country to join its online treatment platform. , Launching in just ... a substantially greater number of people in need nationwide, and to supplement their traditional ...
(Date:6/26/2017)... ... June 26, 2017 , ... New patients with missing teeth ... with or without a referral. Dr. Cotey is a trusted dentist who has placed ... replacement option. , Patients with missing teeth in Fitchburg, WI, are encouraged to find ...
(Date:6/25/2017)... , ... June 25, 2017 , ... Republicans in the ... and replace Obamacare, called the Better Care Reconciliation Act. It differs significantly from the ... will need to be reconciled in committee, or the House will have to take ...
(Date:6/25/2017)... ... ... heatwave currently bearing down on Northern California pushing temperatures to the maximum, many people are ... with laser hair removal. , The process of summer waxing and constantly shaving unwanted ... want to do is get out, dive in and cool off. There is a way ...
(Date:6/24/2017)... ... June 24, 2017 , ... ... PA at the Sheraton Erie Bayfront and Erie Convention Center on June 8-10. ... experience, exhibits, a student quiz bowl, award and scholarship presentations, and professional networking. ...
Breaking Medicine News(10 mins):
(Date:5/30/2017)... CAESAREA, Israel , May 30, 2017 DarioHealth Corp. ... and big data solutions, today announced that it will be presenting ... 2017, at 8:00 AM PT. Erez Raphael , CEO, of ... The conference will be held on June 6th & 7th, ... 180 companies in the small / micro-cap space. ...
(Date:5/26/2017)... plc (NASDAQ: ENDP ) announced today that ... in a fireside chat at Goldman Sachs, 38 th ... 10:40 a.m. PT / 1:40 p.m. ET. The conference will ... Verdes, CA. A live webcast and ... Company,s website at http://www.endo.com/investors/overview . Participants should allow approximately ...
(Date:5/22/2017)... , May 22, 2017  Lilac Corp, ... Gene-Eden-VIR/Novirin, announces the launch of a new ... the results of a clinical study that showed ... treatment with Gene-Eden-VIR/Novirin in individuals suffering from HPV ... note that there are no other treatments that ...
Breaking Medicine Technology: