Q Chip, a developer of microencapsulation technology, has launched ReaX Lab-in-a-Bead — a gel-based bead that “encapsulates all the reagents required to perform PCR in a single dose,” according to the company. The system can be used with any thermal cycler and is applicable to field-based experiments such as bacterial detection and DNA-based security tagging.
Q Chip said that the ReaX beads can be used for end-point, qPCR, and RT-PCR and with multiple fluorescent chemistries, including SYBR Green and TaqMan. The beads can be stored and shipped at either 4 degrees Celsius or ambient temperature. The company claims that they can also reduce overall test costs “due lower repeat rates and less reagent wastage.”
The National Center for Biotechnology Information has released RefSeq 23. RefSeq 23 includes 5,503,385 records from 3,648,590 proteins and sequences from 4,300 different organisms. The number of species represented in each release sub-directory includes 4,300 complete species, 77 fungi, 277 invertebrate, 1,115 microbial, 1,143 mitochondrion, 100 plant, 531 plastid, 82 protozoa, 215 mammalian, 555 other vertebrate, and 1,849 viral.