20 January 2022 6 6K Report

We need to measure the activity of commercial enzyme formulations which are about 5 years old. Can someone help us?

More Rubens Perez Calegari's questions See All
Wolin´s Vitamin solution higher temperature stability?

Hi, I would like to work at Hyperthermophilic condition (>80 C) and use the Wolins Vitamin solution in my culture media. Does anyone knows if the vitamins are stable at this temperature? The...

23 April 2023 7,657 0 View

Similar questions and discussions
Should I remove an item from a scale to raise Cronbach's alpha and McDonald's omega or is it better to leave it if they are both over .7 already?

Hello! I have this scale which had 10 items initially. I had to remove items 8 and 10 because they correlated negatively with the scale, and then I removed item 9 because Cronbach's alpha and...

01 August 2024 4,606 7 View

Could someone explain the basics of working with enzymes?

I'm interested in learning about enzyme usage. Could someone explain the basics of working with enzymes? I understand they're different from standard chemicals, but I'm uncertain about the...

01 August 2024 5,460 5 View

What do you consider to be the most relevant elements of EEG for studying cognitive biases?

I've seen articles that primarily focus on alpha and beta activity in the frontal regions, but these studies often compare healthy subjects with those having various pathologies. I haven't seen a...

31 July 2024 7,259 1 View

Dimensions of an MJ Research 96-well alpha module?

Can anyone with an MJ research / BioRad PCR machine from ~2010 or earlier tell me the external measurements (LxWxH) of the removable standard PCR alpha modules that can be removed from a PTC200 or...

30 July 2024 2,867 0 View

What are some diseases that are caused by overactivity of enzymes?

I want to choose a resarch topic regarding enzyme inhibition. So I did my research and found out most of the diseases that originate from enzymes were actually caused by the "deficiency" of...

30 July 2024 2,483 5 View

Ti6Al4V - Phase differentiation between alpha and alpha prime martensite?

Dear Researchers, Is it feasible to distinguish between alpha and alpha prime martensite in the Ti6Al4V alloy under rapid solidification in the as-cast state using XRD, in addition to...

30 July 2024 3,849 0 View

What are the steps of formulating a herbal extract into a sheep/goat drench?

I am working on natural remedies for de-worming in small ruminant livestocks. Part of my project involves formulation of drench-type product, which I have not much experience in. My experience is...

30 July 2024 9,806 1 View

Why only alpha wave of brain are found in some patients?

I have found an EEG where only alpha waves are present. Beta waves are not found in active patients. What interpretations ?

26 July 2024 4,741 1 View

How to maintain the drug concentration in cell culture study for long term?

I am working in the filed of long acting drugs with Nano formulation. I want to study the efficacy of my formulation in 2D cell cultures while this required media change on every two days. In such...

24 July 2024 8,696 0 View

I have two problems: 1) the enzyme is not immobilizing efficiently into the MOF material.. 2) the MOF itself has peak on 400nm by using p-NPA test.?

I am working on carbonic anhydrase immobilization into MOFs. I am facing problems with low enzyme loading.. The other issue is that when using p-NPA activity test to detect the activity of the...

20 July 2024 1,439 3 View

Our partners will collect data and use cookies for ad personalization and measurement. Learn how we and our ad partner Google, collect and use data. Agree & close