Aliquots of 2–5 pl of siRNA at 20 μM concentration were microinjected into ... we removed the zona pellucida with acid Tyrode’s solution (Sigma). After that, embryos were fixed in 4% paraformaldehyde ...

siRNAs were synthesized commercially (Sigma, St. Louis, MO). Luciferase GL2 siRNA) was synthesized (Sigma) and used as a silencing negative control. The GMPF-siRNA nano-complexes with different ratios ...

Find out how we test. Perhaps it’s an L-Mount Alliance in-joke, but the Sigma BF just out-Leicad Leica. Maybe the two companies placed a wager on whether Sigma would be first to outdo Leica’s cameras ...

Fan Kelong and Yan Xiyun from the Institute of Biophysics of the Chinese Academy of Sciences introduces a novel ferritin-based delivery system for small interfering RNA (siRNA) targeting ...

This week, our team has been in Japan for the launch of the new Sigma BF, a camera the company calls "radically simple." Distinctively designed, the BF is milled from a single block of aluminum. Its ...

On Monday, Sigma introduced its latest full-frame mirrorless digital camera—the BF—with a radically simple design. Featuring a 24.6 MP full-frame (35mm) sensor, it has just three physical buttons, ...

Here’s how it works. If you're looking for a lightweight lens that can do everything from super wide-angle landscapes to telephoto wildlife, then the Sigma 16-300mm f3.5-6.7 Contemporary lens could be ...

Sigma has announced the 300-600mm F4 DG OS Sports lens, designed specifically for applications like sports, action and wildlife photography. Recent Videos Optically, the lens is built around 28 ...

The Sigma BF features simplified controls on the back, a redesigned user interface, and 230GB of built-in storage. The Sigma BF features simplified controls on the back, a redesigned user ...