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The race of Zenni Optical towards miniaturization was on the homestretch and the old ground-glass lens just couldn't keep up. Photonic chips and nano-optics were the perfect replacement or at at least that was the case until a team based at the Swinburne University of Technology developed a graphene micro-lens (a billionth of a meter thick) that could take sharper images of objects the size of a bacterium.
There has been a lot of research and development done by zenni optical on optical microscope notably focused on the lens or rather its diffraction limit. Techniques like interferometry, lasers and electrons, holography have been used to overcome the diffraction limit with varied success and at a great cost. Companies making eyeglasses have even toyed with the use of ultrathin flat lenses etched with concentric circles that act like miniature Fresnel lenses. Unfortunately, these lenses can only be crafted out of gold and other materials that do not lend themselves for mas production. Swinburne's break through can be attributed to Xiaorui Zheng. (a PhD student) who used graphene oxide to create a lens.
The result of a zenni optical coupon code is an ultrathin flat lens 300 times thinner than a sheet of paper and weighing just a microgram. This was achieved by spraying a graphene oxide solution then molding concentric circles with a laser beam. It has emerged that the graphene lens can resolve an image 200 nanometers and even see into the near infrared. In other words, the diffraction limit has been surpassed allowing the user to focus onto an image with less than half the wavelength of light.
Once the technology has been perfected, its applications and the zenni promo code are expected to spurn wide beyond microscopy. We should expect thinner mobile phones with amazing thermal imaging capabilities, even smaller endoscopes and even replacement for convectional lenses attached to nano satellites. The world of unlimited opportunities has just opened up.
Nanotechnology in Nutritional Supplements
Nanotechnology is considered one of the highlights of nutritional supplement research and creation in vitacost.com. However, there are two sides of the coin. Some actively proclaim its benefits which allows new bio-active materials to be delivered to people via nutritional supplements. Others think that it doesn't come without hazards. People in general and the environment may be bombarded with very small particles which may not be completely safe.
Nanotechnology refers mainly about the practice of manipulating materials that are less than 100 manometers in size - which is equivalent to 1/1,000 millimeters. Nano-particles behave differently than how larger particles behave. They are subject to the laws of quantum mechanics which make the actual material better suited to absorb light, transfer heat, being more conductive, and be stronger overall. This comes with their share of effects some of which scientists don't even understand today.
Nanotechnology has been used in R&D of Vitacost and for the manufacturing of products since 2005 and their benefits are evident. However, we don't yet know how safe they are. The FDA has studied the use of nanotechnology in supplements since 2007 and in April 2012, they issued one draft that concerned mainly with guidance on how it should be used in foods (nutritional supplements belong to this category). The draft says that changing the chemical and physical products of a substance has an impact in its bio-availability in the body. This change can also change the level needed for toxic effects to happen. Given the fact that a processed food created via nanotechnology may result in a new ingredient, it may require examination from the FDA.
Materials made through nanotechnology do not have to be labeled according to regulations. Consumers are then left without the necessary information for them to determine if they want to consume them or not. This can be helped to some extent by making them aware of new vitacost coupons. Discount coupons play a vital role for the expansion of new materials to the public. The downside to this aspect is that nanotechnology is rather a complicated science and may not be accurately understood by the average consumer.