Showing posts with label Biomaterials. Show all posts
Showing posts with label Biomaterials. Show all posts

9/23/2007

LED from Salmon sperm

Researcher and scientists all over the world talk about eco-friendly, biodegradable materials, etc, and a new invention we can proud is LED from salmon sperm. What is salmon sperm and why they used it? Salmon sperm is considered a waste product of the fishing industry. It’s thrown away by the ton,” says Prof. Steckl, a leading expert in light-emitting diodes, is intensifying the properties of LEDs by introducing biological materials, specifically salmon DNA. Electrons move constantly — think of tiny particles with a negative charge and attention deficit disorder. It is through the movement of these electrons that electric current flows and light is created.

He thinks that besides salmon DNA, other animal or plant sources might be equally useful. Biological materials have many technologically important qualities — electronic, optical, structural, magnetic,” says Steckl. “But certain materials are hard for to duplicate, such as DNA and proteins.”

So began Steckl’s work with BioLEDs, devices that incorporate DNA thin films as electron blocking layers. Most of the devices existing today are based on inorganic materials, such as silicon. In the last decade, researchers have been exploring using naturally occurring materials in devices like diodes and transistors. “The driving force, of course, is cost: cost to the producer, cost to the consumer and cost to the environment” Steckl points out, “but performance has to follow.”

“The story continues,” says Steckl, again smiling. “I’m receiving salmon sperm from researchers around the world wanting to see if their sperm is good enough.” The next step is to now replace some other materials that go into an LED with biomaterials. The long-term goal is be able to make “green” devices that use only natural, renewable and biodegradable materials.

Can we imagine their long term goal, be able to make "green" devices that use only natural, renewable and biodegradable materials? So, if we can understand like I do what they mean, almost all gadgets do not need a batery to operate its which what they will do are manipulate proton to interact with photons.

Source : Cincinnati