Quantifying leaking DNA from bacteria - what's the secret?

Hi, all! I need to determine if my treatment causes membrane damage in bacteria (S. aureus and E. cloacae), but I cannot use a fluorescent probe such as PI and similar ones because my compound is...

24 February 2021 2,006 2 View

How to generate .dlg files on PyRx?

Hi. I'm using the PyRx version 0.8 and getting the error message: WARNING: Filename mismatch: "2DFN_ADP_CL.maps.fld" :: "..\2DFN_ADP_CL.maps.fld" C:\Program Files (x86)\The Scripps Research...

17 January 2021 843 3 View

Confirming what statistics I need to run for a pilot study in social sciences?

I have altered two instruments and collected a sample of n=60. 1. For the first instrument, I changed the wording of the items to refer to life instead of work. I believe checking the cronbach...

13 March 2020 7,391 3 View

Recovery rate for PD-10 desalting column: Any idea?

Hi all, I have high levels of protein loss on PD-10 desalting column (gavity flow desalting column) when trying to buffer exchange. According to GE, the recovery rate should be higher that 70%,...

03 October 2019 8,483 3 View

Why did I get RMSD plot with 10ns if the MD was 100ns trajectory?

I am new in gromacs and I'm experiencing some difficulties in the analysis of my results. I calculated the RMSD of backbone and ligand from the MD with a trajectory of 100ns (nsteps = 50000000),...

04 September 2019 3,669 6 View

Reversed Flow in Spillway Simulation in Fluent?

Hi I'm trying to simulate the flow of water over an ogee spillway in Fluent. My problem is that I'm getting reversed flow on my pressure outlets. I am aware that it might not affect significantly...

05 December 2018 6,108 3 View

How can I quantify exosomes protein from cell culture media?

I've isolated exosomes from 5ml of cell culture media using ExoQuick TC PLUS kit. I got a visible pellet that was resuspended in the "resuspension buffer" and then purified with the...

13 June 2018 5,514 4 View

What method is best or standard to determine Glut1 expression in T cells?

I am trying to decide the best method between flow cytometry or qPCR to be used as I compare Glut1 expression in two different T cell lines. Is there an ideal protocol? I had read articles where...

17 March 2018 4,211 3 View

How to Build a silica nanosphere with Materials Studio?

Hello, I am beginner in Materials studio software and also in Molecular dynamics and I am needing to build a silica nanosphere with different numbers of hydroxyl groups to adsorb some molecules....

27 December 2017 5,577 2 View

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15 November 2017 8,055 2 View

What are the pros and cons for mice versus rats?

Hi Everyone, I am designing a pilot study using rodents to assess the effects of simulated space environments (radiation + altered gravity) on microbiome and immune system. I have limited...

24 February 2021 1,825 3 View

What should be the duration of exposure to simulated space environments with Rodents?

Hi, I am currently working on a pilot study to get some data related to the impact of long duration spaceflight to the microbiome and the immune system. I plan to use rats and simulate...

22 February 2021 592 1 View

How to successfully revive cells stored at -80 degree C for a year?

I am working on C6 cells along with other neuronal cell lines. We have preserved the cells in 90%FBS and 10% DMSO solution. We are reviving the cells after a year and cells are either not binding...

18 February 2021 4,499 1 View

What are alternatives for B27+ Supplement in neuronal cell culture?

Hello everybody In our iPSC-derived neuronal culture we use Maturationmedium, supplemented with B27+. As Thermo Fisher run out of stock and can deliver earliest in May, I wanted to ask whether...

16 February 2021 3,348 1 View

How can you tell if your organotypic slice culture is healthy ?

I'm working on organotypic cerebellar slice cultures from postnatal rats and I'm not sure how to tell if the slices are healthy at any given point. I know there should be a lot of microglial...

15 February 2021 2,830 2 View

Why daily dexamethasone given to rats fed high fat/fructose/salt cause very high mortality rate?

rats were given daily dexamethasone in drinking water corresponding to 0.5 mg/kg or 2 mg/kg. These rats are simultaneously fed 25% fat, 3% salt in diet and 10% fructose in drinking water but...

15 February 2021 7,634 2 View

Can anyone suggest a way to dissolve insulin which is for rat/mouse injection?

We are trying to inject insulin to rat or mouse, but the insulin we've got is powder, and there are many ways for dissolve, like in saline, PBS, DMSO, or in Tris-HCl, can anyone give us a...

13 February 2021 8,426 10 View

How do I fix tissue rolling while cutting frozen rat brain section with a cryostat?

I am cutting rat brain sections at 20um at -20C. The tissue is cutting nicely out of the O.C.T solution, but I can not get a decent section to adhere to the slide. I have included an image.

09 February 2021 1,345 5 View

RWP1 growing in RPMI medium?

Hello everyone, Has anyone try to culture the normal prostate RWPE-1 cell line in RPMI medium supplemented with foetal bovine serum? There's some articles available but neither describe details...

08 February 2021 6,455 1 View

Rat Macrophage Markers for Flow Cytometry?

Hello, I'm trying to identify good putative macrophage markers for flow cytometry in rats.

04 February 2021 3,913 4 View