How Salmonella 'die' at low temperatures

08-Feb-2018 - The most economical way to kill bacteria that cause common food-borne illnesses -- mostly caused by Salmonella enterica -- is heat, but, the mechanisms that kill Salmonella at lower temperatures were not fully understood until now, according to a team of researchers. Bacteria can develop ways to ...

Good vibrations: Using light-heated water to deliver drugs

03-Apr-2014 - Researchers from the University of California, San Diego Skaggs School of Pharmacy and Pharmaceutical Sciences, in collaboration with materials scientists, engineers and neurobiologists, have discovered a new mechanism for using light to activate drug-delivering nanoparticles and other targeted ...

Quartz crystal microbalances enable new microscale analytic technique

30-Nov-2010 - A new chemical analysis technique developed by a research group at the National Institute of Standards and Technology (NIST) uses the shifting ultrasonic pitch of a small quartz crystal to test the purity of only a few micrograms of material. Since it works with samples close to a thousand times ...

CCNY chemists design molecule that responds to stimuli

25-Nov-2010 - The venus flytrap plant captures its prey when it senses the presence of an insect on the tips of its leaves. An amphiphilic molecule designed by chemists at The City College of New York acts in a similar manner by changing its structure when heated slightly and, then, reverting to its original ...

Graphene: Singles and the few

11-Nov-2010 - A timely review analyzing the correlation of synthesis methods and physical properties of single-layer and few-layered graphene flakes. A review of methods used for synthesizing both single and few-layer graphene and the resulting properties is presented by C.N.R. Rao and colleagues at the ...

Getting a grip on CO2 capture: Canadian researchers 'see' how to capture CO2

02-Nov-2010 - The ability to keep CO2 out of the atmosphere to help prevent climate change is a global issue. The challenge is to use materials that can capture the CO2 and easily release it for permanent storage. Researchers at the University of Calgary and University of Ottawa have provided deeper insights ...

How do your crystals grow?

16-Sep-2010 - Because one of the main bottlenecks in determining the structure of protein molecules is producing good isolated single crystals, improved crystallization techniques would be useful in a wide range of genomics and pharmaceutical research. Research reported in The Journal of Chemical Physics uses ...

ORNL scientists help explain graphene mystery

25-Aug-2010 - Nanoscale simulations and theoretical research performed at the Department of Energy's Oak Ridge National Laboratory are bringing scientists closer to realizing graphene's potential in electronic applications. A research team led by ORNL's Bobby Sumpter, Vincent Meunier and Eduardo Cruz-Silva ...

Nanoribbons for graphene transistors

Materials for tomorrow's nanoelectronics

23-Jul-2010 - In the recent issue of Nature, scientists from Empa and the Max Planck Institute for Polymer Research report how they have managed for the first time to grow graphene ribbons that are just a few nanometres wide using a simple surface-based chemical method. Graphene ribbons are considered to be ...

Seeing moire in graphene

03-May-2010 - Researchers at the National Institute of Standards and Technology (NIST) and the Georgia Institute of Technology have demonstrated that atomic scale moiré patterns, an interference pattern that appears when two or more grids are overlaid slightly askew, can be used to measure how sheets of ...