virtual learning articles

Last Updated on March 9, 2023 by Nourhan Essam The XTT assay is an assay used for cellular metabolic activity measuring as an indicator of cell cytotoxicity, viability and proliferation. XTT assay stands for (2,3-bis-(2-methoxy-4-nitro-5-sulfophenyl)-2H-tetrazolium-5-carboxanilide) which is a tetrazolium-based compound. XTT is a colorless or slightly yellow compound and becomes brightly orange when reduced. In this article we will explain …

Last Updated on March 9, 2023 by Nourhan Essam When you’re reading a scientific text, or having a science lesson regarding bonding and valency, you may come across the term valence electrons. But what does it mean? This is what we will know in this article in detail. In addition to explaining how to find valence electrons in more than …

Last Updated on February 2, 2023 by Nourhan Essam It’s been another year of amazing challenges and achievements for our company ”PraxiLabs”. We’ve reached milestones and overcome obstacles. We were thrilled to share PraxiLabs 2022 recap with you. We’ve picked out the biggest achievements and the most challenging moments, so you can get straight to the point and have a …

Last Updated on November 16, 2022 by Sherouk Badr Shehata The PCR test is a method of amplifying specific DNA sequences using taq polymerase. This technique was first developed in the 1980s and has since revolutionized biology testing. Prior to PCR, only small amounts of DNA could be isolated and analyzed from samples. However, PCR allows for the amplification of …

Last Updated on November 15, 2022 by Sara Assem On September 21st, a very exciting online webinar was hosted by Khadija El-Bedweihy—Founder of PraxiLabs virtual labs—to reveal the significant on-hands learning outcomes and changes that came as a result of using PraxiLabs. The webinar guest speakers varied from professors to students: Mrs. Iluminada A. Ronio— Program Chair, Department of Biotechnology, …