What to do with absence of fluorescence label in Fucci2a mouse-derived fibroblast culture?

Dear all, I have harvested fibroblast cells from R26p-Fucci2 mouse embryos (mouse line as described in this paper: https://dev.biologists.org/content/140/1/237) and cultured them on plastic,...

17 February 2021 3,368 2 View

What is the method of removing RNase contamination from a filter paper surface?

I am working on a biosensing project on paper substrate, however, it is found that the RNase contamination occurs on the filter paper. Might I ask is there any method to clean the paper surface...

12 February 2021 3,926 3 View

What is causing the raw fluorescence to be negative?

Hi everyone, I would really appreciate it if someone can tell me when and why a raw fluorescence starts below zero. In the picture attached below the blue colour curve starts from a negative...

09 February 2021 4,642 3 View

Regarding immunology, transmissivity, herd immunity and vaccines in Sars CoV-2?

This is a follow-up on an earlier question regarding mechanistics of vaccines: why current vaccines don't block transmission. In summary, they don't engage mucosal immune cells to produce IgA....

08 February 2021 8,321 3 View

How can I enter the load increment values to the Abaqus?

In Abaqus I know that there are two methods for incrementation (Automatic and fixed incrementation). I want to control the incrementation by myself. I want to input the values of load increment...

03 February 2021 6,943 3 View

Distortion problem in Abaqus explicit?

Dear all. I'm modeling the RC column with cyclic displacement by Abaqus-Explicit. The concrete model used Concrete Plastic Damage model. However I'm facing with a error about the excessive...

01 February 2021 7,726 1 View

(Scale request) Anyone has the Malay version of Eating Attitude Test-26/40 (EAT-26/40)?

Dear Researchers, My research team is conducting a eating disorder related research in Malaysia and we would like to use the Malay translated version of EAT26/40. I have tried to email the...

24 January 2021 8,925 2 View

I am finding a lot of cellular debris in the culture flask? What are the reason behind it?

I am facing a problem that cellular debris observed in my SHSY5Y cells. I have seeded the cells in DMEM media with 10% FBS in T-25/ 60mm dish (antibiotic used PEN-Strepand gentamycin). I have also...

17 January 2021 3,074 3 View

Difficult to silence gene?

I have been trying to silence a gene of interest but I could not get silencing efficiencies beyond 50% My method of detection is via RT-qPCR and samples were extracted 48hrs post transfection. Are...

09 January 2021 3,404 4 View

What is the reason for discontinued Stage II fatigue crack growth in pearlitic steel?

Conventionally, the process of Stage II fatigue crack growth is governed by Paris law with less microstructural effect. When fatigue crack growth test was carried out for pearlitic steels ( both...

03 January 2021 7,075 3 View

How do I increase the yield of my PCR product?

Hello, We would like to increase the yield of our PCR product. We are running a series of PCR reactions that is targeting ~1.1kb sequence. We begin each reaction with ~400pg of template DNA...

02 March 2021 4,029 3 View

Precipitate after adding laemmli buffer to protein solution containing Potassium Acetate?

Hi, I am running a size exclusion chromatography experiment with a buffer containing Potassium Acetate as a salt. I analyse these fractions through SDS-PAGE. After boiling my SEC fractions in...

01 March 2021 2,622 3 View

How to prepare electrolyte of NaClO4 salt for Na-ion battery? Any problem with this salt?

Hello, I am trying to make anode for Na-ion batteries. I have no experience with preparation of the electrolyte for any batteries. NaClO4 salt are available and I am planning to use EC:PC as...

21 February 2021 8,132 1 View

I want to remove TiO2 and SiO2 coating from surface. any one can help me?

I want to remove TiO2 and SiO2 coating from surface. I think that i should use HCl and MgCl2 and an oxidation agent such as potassium nitrate, but i dont know in which propertion should these...

14 February 2021 300 3 View

By which mechanism does potassium hyrdoxide works as an activator in the preparation of activated carbon?

Activated carbon is prepared from biomass using KOH as the activating agent. What is the possible reaction between KOH and the biomass?

14 February 2021 8,095 4 View

Does any one have experience with Autoclavable cell culture media (RPMI 1640/DMEM)? Does it work well?

12 February 2021 2,958 1 View

How to determinate of molecular structure of salt into the liquid?

I need to determine the open formula of our complex, presumably consisting of sodium tungstate Na2WO4 and aluminum sulfate Al2 (SO4) 3. Our problem is that with an increase in the concentration...

11 February 2021 5,821 1 View

How do I change g/l into mM for bacto agar. I am trying to get the millimolar content of sodium and chloride percentage in bacto agar. How do I do it?

I am doing a salt tolerance-related experiment and for that I need to relate my salt levels to that in bacto agar. I don't want my salt concentrations to increase due to already salt content...

09 February 2021 4,158 1 View

References for relative humidity created by salt solutions at different temperatures?

I understand that the ability of standard salt solutions commonly used to produce a certain relative humidity (RH) in a closed space changes somewhat with the temperature. Where do I find data...

04 February 2021 7,370 4 View

Why does sodium metabisulfite generate turbidity when mixing with sodium hydroxide?

When I tried to mix a sodium metabisulfite solution with sodium hydroxide solution, the mixture solution quickly became turbid. Before mixing both were clear solutions. Please help explain the...

03 February 2021 8,075 2 View