article on recent development in sceince
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In the race to find efficient and plentiful alternative fuels, researchers have always hit a roadblock when trying to come up with an efficient method of splitting seawater to produce hydrogen fuel. On June 10th, a team at the Australian Research Council Centre of Excellence for Electromaterials Science unveiled a catalyst that is able to split ocean water with very little energy needed.
The catalyst has been fashioned into a flexible plastic film that soaks up and uses the energy obtained from light to oxidize the seawater. Unlike current methods that require a large amount of energy to oxidize the water, this method would produce enough energy to power the average home and car for a full day using only 5 liters (1.3 gal) of seawater. The film contains synthetic chlorophyll molecules to harness the energy of the sun in the same way the leaves of many plants do. Nor are there any chemical downfalls to using this method, unlike the current water-splitting method that emits clouds of poisonous chlorine gas.
This efficient and effective method could greatly reduce the cost of hydrogen fuel, allowing it to be a competitive alternative fuel to gasoline in the future.
7Tiny Battery
With the recent invention of 3-D printers, the sky is the limit for the types of intricate and complex objects it can create. On June 18th, it was announced that a team of researchers at Harvard and the University of Illinois were able to synthesize a lithium-ion battery smaller than a grain of sand and less than the width of a human hair.
Researchers were able to achieve this astounding accomplishment through the delicate layering of a network of interlaced electrodes. After a 3-D design is complete on the computer, the printer uses specially made liquid inks containing electrodes designed to immediately harden once they hit the air. The device can serve a wide range of uses due to its size.
Prior to this battery, the existence of incredibly small battery-powered objects was few and far between. This is because devices designed to be incredibly small required batteries that were just as big as they were to give subsequent energy or they were given incredibly small batteries lacking any substantial power. The 3-D printer uses the inks and a detailed design from a computer program to be able to create the microbatteries.
6Bioengineered Body Parts
On June 6th, a group of doctors at Duke University successfully implanted the first bioengineered blood vessel into a live patient. Though bioengineering has been advancing rapidly, this procedure was the first successful implant of any synthetically bioengineered body part.
Implanted into a patient suffering from the end stages of kidney disease, the vein had been synthesized from donated human cells that were then developed on a scaffold. In order to prevent any antibodies in the patient from attacking the foreign vessel, the qualities that could trigger the attack were removed. The vein has proved more successful in tests than synthetic or animal-based implants because they are not prone to clotting and don’t pose risk of infection during the surgery.
Incredibly, the veins are made of the same flexible materials that they’re connected to and even take on the properties of their cellular environment and other veins. With the success of this procedure, this emerging field has huge implications for further uses in the medical world. Soon, doctors hope to be bioengineering veins for heart disease and maybe even go on to bioengineer whole organs or body parts.
The benefits conferred by science upon human society are very much evident science has given us thousand of gifts to make our life comfortable.
The science and technology is spreading all over the world's just imagine the world in the 80's . science were not having any kind of influence on our lives. that time no one could have imagined that science would have one day a very important part in our life ! could we ever imagined back in the 80's that science would play such a huge role in our lives?
ours in an age of science . In this age we can do nothing without the help of science. it's influence can be seen every where, in all spheres of life. Everything that we need every day is a gift of science. Science has invented a world of comfort and happiness for us. it has made life prosperous. All our neccessaries like cloth, paper, Furniture, book , utensils and even oil, sugar, and even bread are made by machines . these machines are invented by science. science has helped us to use natural resources for building our prosperous society. Human life has been made very comfortable today. we go to places in a very short time by motor cars and train.
Today , with the help of science man has become the real master of animal world. He can have almost everything he wants by just turning the switch on even science has made robots that behave like humans and do everything for us over.
when we have already gained complete control over the world of nature, science has begun sending men into space . That day is not far off when man will conquer other planets with the help of science.
Achievements of science are numerous and wonderful in every department of life. It has given eyes to blind, ears to deaf, as science has worked wonders in the field of medicine and surgery. scientific inventions and discoveries overcome many diseases which are thought to be incurable in the past. one of the wonders in the field of surgery is plastic surgery. science can be blessing or a curse it depends how we use it. As long as we use it for developmental purposes, it is a blessing and if we use it for destruction it is curse.
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BEST OF LUCK ;-)
#akashmandal.