Tag: "lenses" at biology news
American Chemical Society's Weekly PressPac -- Aug. 8, 2007
...newly developed method for coating the intraocular lenses
(IOLs) used in millions of cataract surgery procedures may prevent a common complication of cataract surgery, according to a report scheduled for the Aug. 13 issue of ACS Biomacromolecules , a monthly journal. Such surgery corrects the vision loss t...
New impetus through networking
...e optical properties, such as image enlargement or lenses
with alterable focus length, is the goal of the Priority Programme "Active micro-optics". The potential application areas of this research include optical measuring and sensor technologies, medical engineering and monitoring cameras in difficult to a...
ACS News Service Weekly PressPac -- March 21, 2007
... a time-tested cholesterol-fighter Smart sunglass lenses
change color on demand MRI contrast agent can det...March 27, 9:30 a.m., Central Time Smart sunglass lenses
change color on demand Chemists in Seattle are developing smart sunglasses that will allow the wea...
ACS News Service Weekly PressPac -- Jan. 17, 2007
...l implants -- used in devices ranging from contact lenses
to artificial hearts, as well as surgical devices and operating room equipment -- from bacterial infections has led scientists in Mississippi to develop a penicillin-coated version of a key polymer biomaterial. In a report scheduled for the Feb. 12...
Rensselaer licenses microscope technology to Thorlabs
...t very high resolution, without the need to switch lenses
or move the sample. The challenge with this method is that when the mirror is not looking straight down onto the sample, it introduces blurriness. CATS researchers fixed this problem by employing an adaptive optic element, in this case a "deformabl...
Weather forecasting technique wins top prize in 2006 Collegiate Inventors Competition
...venty million people around the world wear contact lenses
and contracting lens-induced infections is not unc...metrist, Yang was discouraged from wearing contact lenses
because of the possible risk of infection. Her experiences led her to focus on her current anti-adh...
OHSU eye doctor says laser surgery safer than contacts
... -- Traditional assumptions have held that contact lenses
are safer than laser surgery to correct vision pro...eater chance of suffering vision loss from contact lenses
than from laser vision correction surgery, also known as "refractive" surgery. His findings are publ...
Fantastic Voyage: A new nanoscale view of the biological world
...an then be manipulated with ion optics in the way lenses
and prisms manipulate visible light - to create an atomic mass image of the sample. Lechene et al. developed MIMS by combining the use of a novel secondary-ion mass spectrometer developed by Georges Slodzian, from the Universit Paris-Sud in France, l...
An artificial cornea is in sight, thanks to biomimetic hydrogels
...ore comfortable contact lenses. Onlays of hydrogel lenses
on the surface of the cornea could serve as extend...ible, Myung says. He envisions implantable contact lenses
that can be replaced if the prescription changes. Hydrogel lenses
may even make their way deeper i...
Purdue creates new low-cost system to detect bacteria
...-wave patterns are distorted after passing through lenses
having complex flaws or aberrations. Individual ...tterns. "Therefore, we can treat the colonies as lenses
and use Zernike polynomials," Rajwa said. Factors such as the shape of bacteria, their refractive ...
First human trial of antibacterial contact lens
...vents caused by microbial contamination of contact lenses
are a major impediment to more convenient, extende...ar of the estimated 100 million wearers of contact lenses
worldwide. Microbial keratitis, a serous eye disease that can cause blindness, occurs in one in 500 ...
Soft materials buckle up for measurement
...t polymers and gels, such as those used in contact lenses
and as tissue-engineering scaffolds. For such applications, stiffness is an indicator for key material performance qualities, such as comfort and durability, and it is important to controlling cell adhesion. The new method uses "sensor films" with ...
Biggest physics meeting of the year
...l Renewable Energy Laboratory will explain (G5.2), lenses
and/or mirrors that focus light on small solar cells can greatly improve efficiency and lower cost, possibly soon bringing efficiency to 50%. Many companies are already investing in this solar concentrator technology. Peidong Yang of UC Berkeley will...
A better tool to study role of iron in Alzheimer's, Parkinson's
...the UF researchers crafted a system of mirrors and lenses
that taps one of the cyclotron's 35 "beam lines," or X-ray sources, for the new purpose of analyzing brain tissue. The results are impressive. Whereas an electron microscope can examine tissue one micron, or one thousandth of a centimeter, the new de...
Battle to beat the bugs wins bio-firm top honour
...ompounds is likely to be in the coating of contact lenses
to prevent eye infections. Longer-term, the company hopes the compounds can be developed into antiviral drugs that could treat diseases like HIV and hepatitis. "In the lab, apolipovirs have been shown to attack the HIV virus before it can attach itse...
FSU chemist's ultrathin films promise a multitude of uses
... arteries and restriction of blood flow. Contact lenses
could be treated to prevent proteins and calcium deposits from binding to them during wear. High-speed electronics could be coated with ultrathin films to make them resistant to electrostatic fields that interfere with their functions. Glass slid...
Gold bowties may shed light on molecules and other nano-sized objects
...Electrical Engineering, Emeritus. "Normally we use lenses
to focus, but it's not possible to resolve detail in objects smaller than one-half the wavelength of light." Because the shortest wavelength of visible light is 400 nanometers, a conventional microscope cannot resolve objects 200 nanometers or small...
Eye on the prize: UH optometry students set record with fellowships
...his research on wavefront guided design of contact lenses
for patients with corneas distorted by disease. Ostrin was awarded the Essilor of American Ezell Fellowship for her research in the focus mechanisms in the lens of the eye. Huang and Robertson were both given the VISTAKON Ezell Fellowships Huang ...
Scientists characterize proteome of human cornea
...le in the United States wear eyeglasses or contact lenses
to correct nearsightedness, farsightedness, or astigmatism. These vision disorders are often the result of incorrect curvature or irregular shape of the cornea and are the most common vision disorders in this country. Other diseases that affect the c...
New law for resolution allows unprecedented sharpness in fluorescence microscopy
...where delta d is equal to 200nm using conventional lenses
and visible light. For a long time, Abbe's law was regarded as being insurmountable. For higher resolution, the textbook knowledge was that a complicated and costly electron or scanning tunneling microscope would be required. However, over the past f...