Meta-surface corrects for chromatic aberrations across all kinds of lenses

Single-layer surface of nanostructures can be incorporated into commercial optical systems

23-Nov-2018 - Today's optical systems -- from smartphone cameras to cutting-edge microscopes -- use technology that hasn't changed much since the mid-1700s. Compound lenses, invented around 1730, correct the chromatic aberrations that cause lenses to focus different wavelengths of light in different spots. ...

Combining metalens with an artificial muscle

27-Feb-2018 - Inspired by the human eye, researchers at the Harvard John A. Paulson School of Engineering and Applied Sciences (SEAS) have developed an adaptive metalens, that is essentially a flat, electronically controlled artificial eye. The adaptive metalens simultaneously controls for three of the major ...

The first nanometrically-sized superelastic alloy

14-Jun-2017 - UPV/EHU-University of the Basque Country's researchers have explored superelasticity properties on a nanometric scale based on shearing an alloy's pillars down to nanometric size. The researchers have found that below one micron in diameter the material behaves differently and requires much ...

Flat lens opens a broad world of color

10-Feb-2017 - Last summer, researchers at the Harvard John A. Paulson School of Engineering and Applied Sciences (SEAS) announced a new, flat lens that could focus light with high efficiency within the visible spectrum. The lens used an ultrathin array of nanopillars to bend and focus light as it passed. The ...

Self-assembly approach to engineer nanoscale metamaterials

09-Jan-2017 - A research team has developed a novel self-assembly approach to fabricate nanoscale metamaterials made of metallic nanopillars in oxide matrices. This method enables control over the density, size, and alignment of nanopillars instead of a random distribution of particles in the oxide matrix. ...

Dynal Biotech: Magnetic Bead Chromatography: No Columns Required

07-Jun-2005 - Dynal Biotech, a subsidiary of Invitrogen Corporation announced the release of the first two products in its new proteomic preparation range - weak cation exchange (WCX) Dynabeads(r) and reversed phase chromatography (RPC) Dynabeads(r). These novel beads are an excellent alternative to ...

Agilent Technologies and Metrohm introduce solution to easily measure chromium (III) and toxic chromium (VI) in the environment

11-May-2005 - Agilent Technologies Inc. and Metrohm AG introduced a high-sensitivity solution to easily detect and differentiate chromium (III), an essential nutrient, from toxic chromium (VI). Also known as hexavalent chromium, chromium (VI) is a potent toxin associated with lung cancer, kidney and liver ...

Agilent Technologies develops sensitive analysis of PBDE, toxic chemical found in computer dust and household products

21-Jul-2004 - Agilent Technologies Inc. announced a highly sensitive method for analyzing polybrominated diphenyl ethers (PBDEs), a class of toxic chemicals found in thousands of consumer products. This gas chromatography/mass spectrometry (GC/MS) method can detect PBDEs at the lowest levels available in ...

Varian, Inc. Introduces New HPLC Column for DNA Analysis System

07-Nov-2003 - Varian, Inc. introduced a new HPLC column for its Helix(TM) System, a fully automated tool for DNA mutation detection and SNP discovery based on the technique of DHPLC (Denaturing High Performance Liquid Chromatography). Varian, Inc.'s new column uses patent-pending monolithic polymer technology ...

Waters New 2003-2004 Chromatography Columns and Supplies Catalog Available

04-Mar-2003 - Waters® Corporation has released a new 2003-2004 Chromatography Columns and Supplies Catalog. This 400-page comprehensive catalog contains the complete line of Waters chromatography products for sample preparation, analysis and purification. The illustrations and chromatograms span a broad ...