History of micro-centrifuge

by Sophie Moore Articles About Latest Updates| News A micro-centrifuge is a device that is driven by an electric motor. It has the ability to rotate (spin) the contents of the device at a very high speed. It uses the principal of sedimentation and is used for the separation of substances. The denser the substance it begins to settle at the bottom and the lighter substance remain at the top. It uses centrifugal force to do so. Centrifugal force is the apparent force that draws a rotating body away from the center of rotation. The concept of centrifugal force is usually applied in rotating devices.



The micro-centrifuge is as common laboratory device and has been used in laboratories for a while now. It can be traced back to the mid 15th century when centrifuge systems were operated by hand to separate cream from milk. The first dairy centrifuge was developed in 1864 which was to be used commercially to separate cream from milk. While the potential use of centrifuge systems in a laboratory was first explored by Friedrich Miescer in 1869, it was on in 1879 that the first centrifugal separator was started by Gustaf de Lavai. The centrifuge further evolved in the 1920s and 1930s with Theodor Svedberg’s work who was a Swedish colloid chemist. However it was only in 1949 that Spinco introduced the first preparative centrifuge that could reach speeds of 40,000 rotations per minute. Beckman instruments took control of Spinco in 1945 and along with that the centrifuge technology as well. They further developed the technology by upgrading the rotor blades material and replaced drive systems with high speed motors. Some of the centrifuges developed by Beckman are still in use today.

 

Thus micro-centrifuges have come a long way and are highly sophisticated device now. They are quite common to any testing laboratory too. But with development comes risk as well. There are certain risks involved while working with the micro-centrifuges available in the laboratory these days. For example opening or touch a micro-centrifuge while it is in use could have disastrous results. This could seriously injure the operator. Also at time you will find that the micro-centrifuge is vibrating a lot and making a lot of noise. In such a situation the device should be turned off immediately and should be checked if it is balanced. For example if a sample of certain density is placed on one side then it is necessary to balance the centrifuge by placing a sample of equal volume and density on the other side before running any tests.



Thus from a simple device that was used to produce cream from milk a new device has been introduced which has many applications like in Blood banks where they utilize high speed centrifuges to separate the different components of blood.

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Other Microcentrifuge related posts:

1. Micro-centrifuges: Careful selections make Easier Experiments
2. How Does A Micro Centrifuge Work In A Laboratory
   
3. Interpreting the working patterns of Micro Centrifuge and Mini Micro centrifuge inside the Laboratory

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Created on Dec 31st 1969 18:00. Viewed 0 times.

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