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At the American Chemical Society Meeting in Boston: Berkeley Lab’s Paul Alivisatos and Noah Bronstein Discuss Nanoparticles and Solar Energy Applications

LSC image

At the ACS Meeting in Boston, Berkeley Lab Director Paul Alivisatos discussed quantum dots and next generation luminescent solar concentrators (LSCs).

Berkeley Lab Spinoff Company Makes Fast, Accurate Nanoscale Sensor

Robert Chebi (right) and Frank Chen

Imagine being able to test your food in your very own kitchen to quickly determine if it carried any deadly microbes. Research conducted at Lawrence Berkeley National Laboratory and now being commercialized by Optokey may make that possible.

Opening a New Route to Photonics

In this adiabatic elimination scheme, the movement of light through two outer waveguides is controlled via a “dark” middle waveguide that does not accumulate any light. (Image by Zhosia Rostomian)

Berkeley scientists have developed a technique for effectively controlling pulses of light in closely packed nanoscale waveguides, an essential requirement for ultrahigh density, ultracompact integrated photonic circuitry.

Major Advance in Artificial Photosynthesis Poses Win/Win for the Environment

Peidong feature image

By combining biocompatible light-capturing nanowire arrays with select bacterial populations, a potentially game-changing new artificial photosynthesis system offers a win/win situation for the environment: solar-powered green chemistry using sequestered carbon dioxide.

Bacterial Armor Holds Clues for Self-Assembling Nanostructures

S-layer bacteria

Berkeley Lab researchers at the Molecular Foundry have uncovered key details in the process by which bacterial proteins self-assemble into a protective coating, like chainmail armor. This process can be a model for the self-assembly of 2D and 3D nanostructures.

New Design Tool for Metamaterials

Xiang Zhang  new feature

Berkeley Lab researchers have shown that it is possible to predict the nonlinear optical properties of metamaterials using a recent theory for nonlinear light scattering when light passes through nanostructures.

From the Lab to Your Digital Device, Quantum Dots Have Made Quantum Leaps

The TV on the right using Nanosys’ quantum dot technology shows a 50% wider range of colors than the standard white LED set on the right. (Courtesy Nanosys)

Berkeley Lab’s quantum dots have not only found their way into tablets, computer screens, and TVs, they are also used in biological and medical imaging tools, and now Paul Alivisatos’ lab is exploring them for solar cell as well as brain imaging applications.

Outsmarting Thermodynamics in Self-assembly of Nanostructures

Simulation of feedback driven self-assembly in mass assembly-line. The tilted network indicates aqueous flow in space (blue reservoir). The plasmon gauged potential (red) phothermally dissociates unwanted assemblies and re-assembles into the desired dimers.

Berkeley Lab researchers have achieved symmetry-breaking in a bulk metamaterial solution for the first time, a critical step game toward achieving new and exciting properties in metamaterials.

Nanotubes that Insert Themselves into Cell Membranes

An artist’s interpretation of a nanotube embedded within a cell membrane, allowing a DNA molecule to pass through. Credit: Xavier Studios

Berkeley Lab researchers have helped show that short carbon nanotubes can make excellent artificial pores within cell membranes. Moreover, these nanotubes, which are far more rugged than their biological counterparts, can self-insert into a cell membrane or other lipid bilayers.

Lord of the Microrings

Schematic of a PT symmetry microring laser cavity that provides single-mode lasing on demand.

Berkeley Lab researchers report a significant breakthrough in laser technology with the development of a unique microring laser cavity that can produce single-mode lasing on demand. This advance holds ramifications for a wide range of optoelectronic applications including metrology and interferometry, data storage and communications, and high-resolution spectroscopy.