What is your Blood Color??


1-Why does Blood looks blue when you see it through your skin? although it is red!!
2-Is everyone’s blood always the same color red?
You must want to know the answers!!

1-The blood always appears blue from outside in the vein under the skin. It is because of the absorption of the light of different wavelengths penetrating in your skin. The difference between capillary’s and vein’s blood color depends upon how recently blood gets oxygen.

2-Some Octupas, squids and snails= Blue Blood
Some Submarine worms= Pinkish Violet Blood
Some Skunks= Green Blood

Read on : https://www.facebook.com/the.bio.infos/posts/590070201065892
http://goo.gl/jYwFg2

Zinc..a starving agent for Streptococcus pneumoniae


Zinc

New research sheds light on exactly how zinc can ‘starve’ Streptococcus pneumoniae by preventing its uptake of manganese.

Manganese is essential for S. pneumoniae to be able to invade and cause disease in humans. The researchers identified that the bacterial transporter that normally binds to manganese (PsaBCA) can also bind to zinc. However, the smaller size of zinc means that when it binds to the transporter, the mechanism closes too tightly. This causes the ‘spring-hammer’ mechanisms of PsaCA to unwind too far and jam shut, and it becomes unable to take up manganese.

Reference:

http://goo.gl/wyyUrY

The genome re-writting


1375291_10152007540012518_813471796_n

 

This is the first time ever the genetic code has been fundamentally changed. The breakthrough is a huge step forward in synthetic biology and opens up the possibility of turning re-coded bacteria into biofactories, capable of producing potent new forms of protein that could fight disease or generate sustainable materials.

Reference: http://bit.ly/19bDzvZ

Use of E.coli (bacteria) for killing pathogens


E.coli

 

E. coli is best known for making people sick, but scientists have reprogrammed it to sense and kill off slimy groups of bacteria known as biofilms, which are responsible for hard-to-treat infections that occur in the lungs, bladder and on implanted medical devices.

Reference: http://bit.ly/1g4CQ3n

Suicide prevention from a blood test


suicidal behaviour

By identifying the bio-markers that show a heightened risk of suicide, doctors would be able to treat the condition, potentially saving the individual’s life. When the blood test is combined with clinical analysis of mental state, researchers were able to identify people with suicidal tendencies over 80% of the time.

It is important to note that this technique is still in the early stages and more extensive testing will be required before it can be used clinically.

Reference: www.nature.com/news/predictors-of-suicidal-behaviour-found-in-blood-1.13570

Your DNA is flame_retardent


Italian researchers have found a new use for DNA: as a flame retardant. Coating cotton cloth with extracted DNA, the scientists found that the genetic material reduced the fabric’s flammability.

DNA coated match sticks

When heated, DNA’s phosphate-rich backbone produces phosphoric acid, which helps replace water in cotton fibers with a flame-retarding residue. At the same time, the bases, which contain nitrogen, produce ammonia, which inhibits combustion and interacts with the residue to form a protective shield over the cloth.

Reference:

http://www.the-scientist.com/?articles.view/articleNo/34689/title/DNA-Is-a-Flame-Retardant/

why hands and feet get wrinkled after too much time in water?


The wrinkles that form on people’s hands and feet after soaking in water may have evolved to help humans handle wet objects more efficiently.

Pruniness on hands