How we can determine λ(max) of Al2O3 nanofluid by UV-Vis?

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Knowledge graph of cold chain?

Dear Friends I hope you are well. "I'm interested in the concept of a 'Knowledge Graph of the Cold Chain.' If you have any files or information on this topic, could you please share it with me?...

05 March 2024 2,305 2 View

Does passive movement produce EMG?

Can passive movement of a joint, for example plantar/dorsiflexion of ankle joint, elicit EMG activity in tibialis anterior and gastrocnemius muscles?

09 June 2023 8,007 4 View

How to measure the concentration of free calcium in the cytoplasm of rat beta cells?

Hi How to measure the concentration of free calcium in the cytoplasm of rat beta cells? Thanks

15 April 2023 3,122 7 View

Why chitosan glutaraldehyde hydrogel does not swell?

Why chitosan glutaraldehyde hydrogel does not swell and absorb water after being placed in the refrigerator?

11 March 2023 1,607 3 View

Amaxa Nucleofector vs Neon thermofisher electroporator systems?

Does anyone have experience with using Amaxa nuclefactor or Neon for electroporating CRISPR plasmids or any other vectors in primery cells?

28 February 2023 6,834 2 View

Has anyone done cDNA transfection on human primary T cells successfully using NEON pipette (ThermoScientific System)??

I was wondering how this system compares to the BioRad electric pulse system for delivery of plasmid components? what is the optimized buffer or what is your advice to imorove KD efficiency?

20 February 2023 3,767 0 View

How can we maintain our peace, freshness and good mood in a life full of work and activities?

Hello. Good Night Recently in class, students were asked a question that is important to me, and I heard some interesting answers. My question is, how can a woman perform many duties and...

05 December 2022 6,891 8 View

Anyone knows why the NMR integration value becomes negative?

I have two small characteristic peaks in the NMR spectrum showing negative integration values. I would appreciate it if you could share your opinion.

28 November 2022 9,933 2 View

What is the mystry of rose?

Sohrab Sepehri one of Persian poets says at the end of one of his tender and mystical poems called "water`s footsteps" : It is not our business to fathom the mystery of rose🌹 Perhaps our...

26 November 2022 6,979 90 View

Does anybody know How I can transport samples for SA-b galactosidase staining?

I want to have an in vivo experiment in one lab and cryosectioning and SA-b galactosidase staining in another lab, for long-distance transportation of mice kidney samples, Does anybody have...

19 August 2021 3,603 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

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

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

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

How can we calculate the percentage of configuration interaction (CI) in the UV output data of the Gaussian program?

How can we calculate the percentage of configuration interaction (CI) in the UV output data of the Gaussian program? for example: Excited State 17: Singlet-A 5.1359 eV 241.41 nm...

28 July 2024 9,165 2 View

Why semicircle of nyquist plot is not complete?

While I am doing HER, I noticed that nyquist plots of Electrochemical Impedance Spectroscopy (EIS) is not complete. Will it affect for the Linear Sweep Voltametry (LSV) data? However, I can found...

26 July 2024 7,542 4 View

What is single absorption ESR spectroscopy ?

In the context of Electron Spin Resonance (ESR) spectroscopy, under what conditions is an absorption spectrum considered to be a single absorption spectrum?

25 July 2024 2,325 1 View

Can we fit a gaussian Fit on a LIBS Peak ?

Though much literature suggests fitting a Voigt profile on a LIBS peak, is it also possible to fit a Gaussian profile on the LIBS peak? I have 204 spectra files, and I am building a pipeline for...

23 July 2024 6,127 1 View

Mohamed A Elbagerma

check the attached file to get article may be will help you

Yousef Zeraatkish

you can disperse the particles in a liquid such as water or ethanol via ultrasonic dispersant probe and then using vis spectrum from 200 -800 nm.

be happy

Hosein Kamani

you can mesure the UV- Vis spectra and draw the plot lamda Vs reflectance at faculity of physic in sharif university. No of Lab=125 Ms karimi