We frequently get the question, "how do I know that my equipment is working, or that these tests are accurate?" The best way to determine this and be sure of your results is to run a system suitability test.
Hello! We are pleased to announce that we are releasing a major software update for the VROC® Initium, software version 1.4.1. This software update includes a new user interface (UI) and the ability to export databases.
For any medication sold over the counter of your local drugstore to the medication you are prescribed, you can bet that all of those drugs are approved by the U.S. federal food and drugs administration (FDA). "The FDA is responsible for protecting the public health by assuring the safety, efficacy, and the security of human and veterinary drugs, biological products, medical devices, the nation's food supply, cosmetics and products that emit radiation" (FDA). Providing federal guidelines for almost everything consumed, medication is but one spectrum of what the FDA regulates.
We are all familiar with maintaining our lab instruments, but how often do we perform maintenance on our lab methods or SOPs?
In the upcoming weeks, we are proud to announce the release of our latest application note regarding concentration dependence in protein viscosity. In this app note, Dr. Stacey Elliott gathered viscosity data for Bovine Gamma Globulin (BgG) formulations over the full concentration range, including therapeutic levels ≥ 100 mg/mL, using the VROC®Initium. The solution buffer included sucrose which is a common additive to enhance stabilization during freeze-drying and storage. Relative viscosity versus concentration curves were fit with the Ross-Minton equation which is a frequently used analysis tool for protein formulations.
To view application note, click below!
According to a GEN – genetic engineering & biotechnology article, researchers found that the consumption of coffee stimulates the complex network of neurotransmitters, also known as the endocannabinoid system (ECS), much like that of cannabis. ECS consists of a biological structure composed of endocannabinoids, which are essentially the "small molecules that activate the cannabinoid receptors" (Jikomes). ECS is a system that is necessary in maintaining homeostasis on a cellular level. Furthermore, ECS is also responsible as it acts as a regulator for stress response, appetite, addiction, energy, and much more (GEN).
Measuring viscosity dates back to as early as the 19th century. French physicist Jean Poiseuille discovered the concept of measuring viscosity by formulating the "mathematical expression for the flow rate for the laminar flow of fluids in circular tubes." Later on, this formulation was discovered by a German hydraulic engineer Gotthilf Hagen, which came to be known as the Hagen-Poiseuille equation (Britannica). Early measurements of viscosity focused primarily on the flow of blood. Measurements were conducted using the hemodynamometer that incorporated narrow tubes & glass capillaries in effort to measure the pressures in the arteries of horses and dogs (Sutera).
Recently we received our first order from Saudi Arabia. The order is from the leading university in Saudi Arabia and they order an m-VROC® with multiple chips.
*Lu's Corner is a new concept hosted by our Technical Specialist, Lu Lu. Lu has been a Technical Specialist with RheoSense for over 2 years. Through meticulous customer relationship development and continuous exploration of new applications, Lu has been able to provide a level of outstanding customer service and support.
What do we talk about when we talk about viscosity? A series stories of viscosity in life.
Story One - Cosmos and Cosmetics