Fe-based metallic glass supplier

More Mahmoud Zakaria Ibrahim's questions See All

Can I base on reverse DNA sequences to perform alignment, convert to amino acids and GenBank submission?

I have reverse sequences (AB1 format), can I base on reverse DNA sequences to perform nucleotide alignment, convert nucleotides to amino acids and deposit the sequence in GenBank database?

11 August 2024 5,138 1 View

Why does everyone use vs code?

Visual Studio Code (VS Code) has become a popular choice among developers for several reasons: 1. **Free and Open Source**: VS Code is free to use and open source, making it accessible to...

07 August 2024 7,013 4 View

How much Yeast should we add to fermentation media?

I have prepared a liquid broth containing Yeast (S. Cerevisiae) that i need to add from it to fermentation media of lignocellulosic hydrolysate. I need to know based on what parameters do we add...

06 August 2024 662 1 View

Why did the authors extrapolate a phenotype that they experimentally proved in one bacterial strain across the whole genus of the organism?

I aim to be as skeptical as possible regarding whether a pair of orthologous genes results in the same phenotype in their different but related bacterial organisms under similar environmental...

05 August 2024 6,787 4 View

I'm optimizing a tetra-ARMS PCR protocol with amplicon sizes: 165bp, 123bp and 93bp. Why, in the gel, only 165bp is visible while I'm expecting all 3?

It's an end-point PCR protocol. I'm using 1.5% agarose gel with SyBR Safe dye and TBE as a running buffer, visualization on BioRad XR+ system. I was primarily thinking of primer efficiency,...

01 August 2024 4,673 4 View

I have no added any resarch paper yet but showing three paper? how to delete it?

I have not addede any paper yet but it has selected 3 papers which are not mine in my account. i want to delete that information. please help me

30 July 2024 3,743 0 View

My question concerns MTT cell viability assay?

Despite not having cells in the media, I am getting purple color. I have tried many troubleshooting methods, varying media types, and even different MTTs from different companies to figure out the...

21 July 2024 9,914 1 View

Guidance needed for preparing the hydrogel samples for the XRD instrument?

I'm working with a hydrogel sample and I'd like to perform XRD analysis. Can anyone offer guidance on preparing the hydrogel for the XRD instrument? Specifically, I'm unsure about the best method...

20 July 2024 3,611 4 View

How can I extract the mathematical equation from existing Neural Network Model?

There exists a neural network model designed to predict a specific output, detailed in a published article. The model comprises 14 inputs, each normalized with minimum and maximum parameters...

14 July 2024 2,714 3 View

?como elimino articulos que no son propios?

eliminoar articulos que son de tu autoria

05 July 2024 2,107 1 View

What are the best solvents and plant extraction methods in the green synthesis of silver nanoparticles ?

1. Which form of plant extracts shows the greatest potential for green synthesis of silver nanoparticle: - direct homogenization with deionized water followed by filtration or centrifugation,...

02 May 2024 7,789 2 View

Stent radial force requried to cause damage to artery wall intima?

I am working on the measurement of radial forces exerted by self-expandable cardiovascular stents. I need to know how much force can damage the intima of arterial walls? Please refer me to a...

31 March 2024 1,774 5 View

After purification by centrifugation and washing with deionized water, what are the subsequent steps to produce silver nanoparticle AgNP?

1. If I air dry the sample overnight, how should I prepare it for UV-Vis, FTIR, DLS, and SEM/TEM characterization? 2. Do I need to add a buffer to maintain sample solubility? Should the...

19 March 2024 4,898 5 View

What are the best approaches for designing the green synthesis production of silver nanoparticles?

Is it more effective to optimize the ratio of plant extract to AgNO3, or should I adjust the final concentration of AgNO3 in a fixed concentration of plant extract, considering the optimization of...

19 March 2024 1,183 4 View

How much yield of AgNP is typically obtained in one batch of green synthesis with plant extract?

I am currently undertaking the synthesis of AgNP utilizing plant extract as a bioreductor. The synthesis procedure involved reacting the plant extract with 1 mM AgNO3 while optimizing the ratio....

19 March 2024 9,338 2 View

How can I optimize the pH of biosynthesis AgNP? Is it acceptable to use chemical reagents to adjust the pH in green synthesis approaches?

I am planning to synthesize AgNP using plant extract as a bioreductor. I have come across several papers recommending a neutral to alkaline pH range (pH 7-8) to achieve silver nanoparticles with...

19 March 2024 1,246 4 View

Is there any tolerance limit for the presence of the lowest wavelength peak (a blue shift) that still indicates the presence of AgNP?

Many references suggest that the formation of AgNPs is characterized by a single peak at lambda 380-420 nm. Additionally, are there any guidelines regarding the timing of characterization? I've...

19 March 2024 4,522 2 View

What's the ideal apparatus for AgNP biosynthesis? Can plant extract metabolites, crucial for AgNP reduction, withstand 121°C in 20 minutes autoclave ?

I am planning to synthesize AgNP using plant extract as a bioreductor. In the green synthesis approaches of silver nanoparticles, should I focus solely on preventing the degradation temperature of...

19 March 2024 8,287 4 View

Why do silver nanoparticles synthesized using different plant extracts exhibit variations in antibacterial activity, size characteristics, etc.?

In the green synthesis approaches of silver nanoparticles, do plant extracts solely influence secondary metabolite compounds that act as reducing agents and antioxidants? Or do the antibacterial,...

19 March 2024 8,064 4 View

How to determine the Interaction Volume in Elastic Nanoindentation?

I am interested in methods/equations for calculating the interaction volume during elastic nanoindentation. Specifically, I'm interested in determining how much of the material (other than the...

29 January 2024 5,318 2 View

Matthias Bicker

Hello, difficult to answers, because I worked in R&D more than 20 years ago on bulk metallic glasses.

You could try the following contacts: IFW in Dresden

Institute for Metallic Materials (ifw-dresden.de)

Caltech in US (probably higher chance to find a supplier)

Strong, Tough, and Now Cheap: Caltech Researchers Have New Way to Process Metallic Glass - www.caltech.edu

Chen Jingwen

Hi Mahmoud,

You may make an inquiry at Alfa Chemistry, they offer you advices and kinds of good-quality chemicals.

https://www.alfa-chemistry.com/inquiry