High-cell-density cultivation (HCDC) is a process that improves the formation of microbial biomass and products. It can be used for microorganisms such as bacteria, archaea, and yeasts. HCDC can make the fermentation process […]
Miscellaneous
How to protect RNA from degradation?
To protect RNA from degradation, you can: RNA is prone to enzymatic degradation and hydrolysis. Even at low temperatures, RNA can still be reactive, and some ribozymes can be enhanced by […]
What is the main reason for RNA being unstable?
Unlike DNA, RNA is usually single-stranded. Additionally, RNA contains ribose sugars rather than deoxyribose sugars, which makes RNA more unstable and more prone to degradation. RNA is generally stable at –80° […]
Potential Reasons for Lack of Supercoiled DNA
Conclusion In conclusion, the absence of apparent supercoiling in plasmid DNA preparations can result from a variety of factors related to DNA extraction, purification, handling, and analysis. By systematically addressing […]
Transfection Efficiency: What Makes Plasmid DNA Transfection Grade
Successful transient transfection relies on many factors, starting with a successful plasmid prep. To ensure high transfection efficiency, resulting DNA from your plasmid preps must be transfection grade. But what […]
Why Uncut Plasmid DNA on Agarose Gel Has 3 Bands
When uncut plasmid DNA is isolated and run on an agarose gel, you may observe two, three, or even four or more bands. Hopefully, the majority of your isolated DNA […]
Homemade qPCR Mix Recipe
For a 20µl reaction: Component Volume (µl) Final Concentration H2O 12.9 10x homemade core buffer 2 1x 2mM dNTP mix 2 0.2mM 20µM primer mix 0.5 500nM […]
Home made qPCR Master Mix
Reagent Volume (for 150 µL) qPCR mix (2×) 100 µL Sense primer (1 µM) 2 µL Antisense primer (1 µM) 2 µL Fluorescein (1 µM) 2 µL SYBR Green (40×) […]
The Principle of Transformation
As DNA is a highly hydrophilic molecule, it usually cannot pass through the cell membrane of bacteria. Hence, to make bacteria capable of internalizing genetic material, they must be made […]
How Orbital Diameter and Shaker Agitation Rate Affect Bacteria Growth
A common use for orbital shakers is to grow bacteria for a variety of purposes, including the production of proteins and genetic matter and for the study of bacteria themselves. […]