(Nanowerk News) Density gradient ultracentrifugation (DGUC), as an effective method for the purification of nanomaterials, has attracted tremendou attentions of researchers. A recent review was ...

Separation techniques and principles that were used by early gold prospectors are still used today in the mining industry. Some of these methods, transferred to the recycling industry, have ...

A float-sink technique to separate seeds by density differences is described. Mixtures of hexane and chloroform were used to obtain solutions of 0.66 to 1.47 g/cc, respectively. Wheat (Triticum ...

Giving a 65-year-old laboratory technique a new role, researchers have performed the cleanest separation to date of synthetic nanoparticles from a living organism. Sometimes old-school methods provide ...