MALACHITE Green, also known as Aniline Green or Basic Green 4, is banned in foodstuffs in most western countries, including the USA and the UK. The compound is legitimately used as a dye in the tanning of leather, but is…
Category: methods and protocols
3D cell culture made simple
A NEW system which promises to make consistent and reproducible 3D cell culture a simple procedure has been launched by Tap Biosystems. The new Raft system includes a custom microplate and heater together with reagents and a protocol to follow…
Direct determination of CHN in filter residue
A PROTOCOL for the direct determination of total CHN (carbon, hydrogen, nitrogen) in filter samples using the Model 440 elemental analyser has been published by Exeter Analytical. The company says using this technology to determine the percentage C, H, and…
How to image 3D cell cultures
A NEW white paper from Reinnervate provides helpful information on making the switch to 3D cell culture using the company’s Alvetex scaffold. The document covers a number of different approaches to the visualisation and growth of cells in 3D, as…
Viscosity measurement in tiny samples
A NEW viscosity test protocol from Rheosense demonstrates how it is possible to obtain accurate test measurements on samples as small as 20ul. The company says this is the the lowest sample volume requirement available, and is achieveable with its…
Online calculator generates HPLC methods
A NEW online tool to generate HPLC and UHPLC methods has been unveilied by Phenomenex. Kinetex Calculator produces a method based on the running conditions that are entered online, which should provide an optimised result for users. It also calculates…