Why the increase temperatures absorption peak uv-vis protein bovine serum albumin reduced?

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How can in test Western Blottes transfer all proteins from gel to membrane (PVDF)?

When I work with this method, all proteins are not completely transferred from the gel to the membrane (PVDF), and after staining, there is still some protein remaining on the gel. I'm looking for...

01 February 2018 8,962 6 View

How can I get a better coloration of the electrophoresis gel using coomassie Blue method?

I could not see the protein bands very clearly when painting coomassie Blue.

11 December 2017 8,680 5 View

How is the activity of an enzyme-like nanocomposite calculated?

I want calculate activity enzyme as peroxidase in nanocomposite with the 4-AAP and H2O2 substrates(method Worthigton), but I dont have formula standard. Please guide me. Thanks Sepideh

31 December 2016 6,719 6 View

To calculate the number epsilon enzyme activity How do I report?

To measure the peroxidase substrates in the presence of phenol and 4-aminoantipyrine Worthington book value of Epsilon is 6.58 was reported . But I read somewhere else that is not a constant...

09 October 2016 5,495 4 View

How is assay peroxidase gold nanoparticles?

Please help me

31 December 2015 6,434 0 View

How to prepare 25mM sodium phosphate buffer with pH 4.0 ?

31 December 2015 3,256 0 View

How to determine the concentration of nano particles get mixed with protein?

10 November 2015 2,521 0 View

How can coat metalic nanoparticles example whit sulfide?

03 April 2015 3,921 0 View

Which type of compound does lamda max of 218 indicate in a uv-vis spectrum of a partially purified compound through column and TLC?

A crude extract of fungal culture using EtOH was subjected to column and TLC and partially purified compound was obtained. UV vis spectrum of the compound/s has max absorbance at 218nm. The...

11 August 2024 9,801 2 View

Baseline drift in HPLC? What causes this?

Hello, Why do i see this baseline drift when i compare my blank (black) to the sample (blue)? Any suggestions as to why this happened? Thank you!

11 August 2024 3,770 4 View

How to calculate CCS for Sodiated adduct ions and Multiply Charged Ions?

I'm currently working on calculating the collision cross section (CCS) for various ions, and I'm facing challenges when dealing with sodiated and multiply charged ions. Most of the resources I’ve...

08 August 2024 8,329 0 View

Why does my protein refolded to beta sheet during thermal denaturation analysis?

Hi! So i attempted to understand a novel protein behavior towards heat application by analyzing its secondary structure change. I subjected the protein to a thermal denaturation analysis using...

06 August 2024 1,989 3 View

Why might the impedance values for DI water and 0.1X PBS buffer solution exhibit a decreasing and increasing trend, respectively over time (HP 4194A)?

Hello everyone, I'm encountering an issue with my electrochemical impedance spectroscopy (EIS) measurements and would appreciate some insights. Experimental Setup: Electrodes: Gold interdigitated...

05 August 2024 3,783 2 View

Can a Conventional 50W visible LED Lamp Emit UV Light?

I'm researching light sources and their UV emissions. I'm curious if a 50W, 7500K conventional LED lamp emits any UV light. I found that a 200W tungsten lamp can emit up to 1.5 mW/cm² at 350 nm....

31 July 2024 3,843 7 View

Transfection in HEK293T cells?

Dear All, I am trying to transfect a pCDNA3.1 vector containing my gene of interest. The purpose is to figure out the localization of the protein of interest. I have fused the protein with GFP on...

31 July 2024 9,892 4 View

Mossbauer spectroscopy Co0.6Mn0.4Fe2O4 MNPs?

Following curve related to Co0.6Mn0.4Fe2O4 Magnetic nanoparticles with extra phase a-Fe2O3. I will appreciate to help me to interpretation this spectroscopy, especially the blue line.

31 July 2024 9,140 2 View

Inquiry on Maximum Nucleic Acid Volume for 2.5 mL Liposome Solution?

I am currently working on a project involving liposomes and need to determine the maximum volume of siRNA that can be added to a 2.5 mL liposome solution with a total lipid concentration of 10...

30 July 2024 6,420 1 View

How to calculate conductivity using Electrochemical Impedance Spectroscopy's Nyquist plot?

Hello everyone, I am new to this characterization but watching videos on youtube I have already plotted a Nyquist plot (Z' and -Z'') and already fitted models on my material using Zsim. But now I...

29 July 2024 1,376 0 View