Chemistry: Levitating micro-reactors
Nature Communications
2013년10월30일
A green strategy for fabricating nanoparticles, creating nanoscale coatings and designing porous materials was reported in Nature Communications this week. The process exploits the superheated and charged environment within levitated Leidenfrost water droplets. It is a relatively low energy procedure and water is the only solvent required.
Everyone is familiar with the experience of sprinkling water onto a hot frying pan. The water drop vaporizes and appears to levitate upon its own vapour; this is the Leidenfrost effect in action. Mady Elbahri and colleagues have investigated these droplets and show them to be not only superheated, but also highly charged. They can thus be used as “microreactors” and their internal environments are ideal for nanosynthesis. The authors demonstrate this application by fabricating several nanoscale products such as nanoporous gold with wideband absorption, which can be coated onto a range of materials and may have energy harvesting applications.
doi: 10.1038/ncomms3400
리서치 하이라이트
-
7월7일
Public health: Tackling adolescent stressNature
-
6월23일
Scientific community: Women credited less than men in scientific paper authorshipNature
-
5월12일
Geoscience: Monitoring earthquakes at the speed of lightNature
-
5월4일
Microbiology: Bacteriophage therapy helps treat multi-drug resistant infection in an immunocompromised patientNature Communications
-
4월27일
Planetary science: Building blocks of DNA detected in meteoritesNature Communications
-
4월8일
Health: Psilocybin use associated with lower risk of opioid addictionScientific Reports