Jean Raynell Bello

6 Questions 9 Answers 0 Followers

Questions related from Jean Raynell Bello

What would be the most appropriate test to assess the effectiveness of a treatment on changing BMI categories of patients?

Participants are randomly assigned to two groups- experimental (internet based) and control (physical visit). BMI Measurements will be conducted at 3, 6, and 12th month. In the end, I want to...

25 February 2021 9,153 4 View

Why are cancer cells used in biocompatibility tests?

I am doing my research on electrospun scaffolds for tissue regeneration and my team will have it them tested for biocompatibility and cell proliferation soon. I'm not yet sure which cell line will...

04 April 2019 3,712 4 View

Electrospinning - can someone explain these "protrusions" on my collector?

Hello, I am trying to fabricate electrospun nanofibers from 20wt.% PVDF solution in DMF:Acetone (7:3 ratio). My electrospinning time was set to 20 minutes however, in the first 10 minutes of the...

14 November 2018 1,763 7 View

How do I properly stop the electrospinning process?

Hello, I have a basic, closed electrospinning setup that has been modified several times. I noticed that turning off the power supply does not immediately stop the solution in the needle tip from...

26 May 2018 683 4 View

Why are there electrospun fibers on my syringe pump?

Hello, I did electrospinning of 15wt.% PVDF in DMF solvent. The setup was a simple horizontal spinning - collector plate with aluminum foil, syringe pump, syringe with spinneret, and high voltage...

23 February 2018 5,878 4 View

My solvent-casted PVDF film was opaque and somehow shrunk during vacuum drying. What should I do?

I'm trying to make smooth PVDF film using solvent casting dried under vacuum from 20 mL of 15% PVDF in DMF solution. The vacuum dryer temperature was at 55 deg C. After some time, this is what I...

30 January 2018 915 4 View