What is the best cut off for purifying influenza virus?

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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

Conjugation of PEG-Amine to an Amino Acid Using EDC?

I am attempting to conjugate PEG to an amino acid at the C-terminus, for the purposes of producing nanoparticles. I have been told that PEG modified with amine groups can be used for this purpose,...

31 July 2024 2,033 1 View

Does soybean seed coat or cotyledon contain chlorophyl or flavonoids? What types? determined by paper chromatography? other methods (high school lab)?

Am trying to develop a lesson/lab to determine and compare antioxidant properties of soybeans of various colors. Preference would be low tech and low cost. Any assistance is greatly appreciated.

25 July 2024 7,498 2 View

Does post-translational protein modification cause devisions on observed pI verses calculated pI?

In running two-dimensional gel electrophoresis on bacterial protein, some spots that appear to match a protein sequence have a significantly more acidic isoelectric point than the calculated pI....

24 July 2024 8,076 3 View

Could someone please provide a list of journals that accept the application of methodologies in nature-based solutions?

I am looking for journals that admit the publication of results from applying the IUCN Standard for designing and monitoring Nature-based solutions. Many thanks for considering my request.

23 July 2024 6,444 2 View

Pink bacterial colonies?

I am cloning an overexpression plasmid with my protein of interest tagged with mScarlet. After transforming my ligated product into DH5α bacteria and plating on LB agar, I noticed colonies with a...

22 July 2024 5,953 6 View

How I can add anew research in my account ?

Their is new research published in the biological control journal, and I am one of the authors. I want to add it to my account at researchgare. How can I do this?

21 July 2024 7,545 0 View

Cell proliferation assays suggestions?

What cell proliferation assay do you suggest? cyQUANT from thermo Fischer has good reviews, a lot of good articles for the kit from Abcam. and Promega kits look easy and straight forward.

21 July 2024 1,554 2 View

How do you assign allele numbers and sequence type after amplifying housekeeping genes by PCR for MLST?

How to assign allele numbers and sequence type after amplifying housekeeping genes by PCR for genotyping of S. pneumoniae strains by MLST using bioedit ?

19 July 2024 5,239 2 View

Can Document Analysis be used as the only method of research?

I have read that it is better to use other research methods alongside document analysis for triangulation, although it can also be used as a stand-alone method.

18 July 2024 4,218 0 View

How can I prepare virus for a TEM or SEM imaging?

I have virus (viral hemorrhagic septicemia virus) in suspension and the experiment will not involve cells. What level of TCID50 is preferred?

11 August 2024 3,115 1 View

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

Which Scopus Journal provides the most affordable fees?

"PUBLISHING IN A SCOPUS JOURNAL" Researchers are now at a cross road. The critical need to publish in a Scopus or ISI, etc journal is ever vital. Journal Publication fees must be submitted....

10 August 2024 8,621 1 View

Seeking Advice on Viability and Execution of Undergraduate Thesis Topic?

Hello everyone, I am currently developing a thesis proposal and would appreciate your input on its viability and how to effectively carry it out. My proposed topic is: "Does the perceived threat...

10 August 2024 8,992 0 View

Who will be moral responsible for the death of thousands of people in the event of an earthquake?

Who will bear moral responsibility for the deaths of thousands of people in the event of an earthquake? Weeks and months remain before the onset of strong earthquakes that bring death to...

08 August 2024 6,134 12 View

I can't see the ssDNA band after performing asymmetric PCR. Is there any way to do this?

After performing symmetric PCR, PCR purification was performed. Afterwards, asymmetric PCR was performed using the PCR purification product as a template, but no ssDNA band was confirmed in the...

08 August 2024 1,668 3 View

Does crude extraction using NaOH and Tris work well with Fungi?

I'm trying to find a DNA extraction method for fungi that does not require equipment and heating. Is there anyone who can suggest an alternative option? Thank you

08 August 2024 4,733 2 View

Are there any instruments for studying time similar to the way it is in space?

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06 August 2024 7,102 0 View

Why after performing site directed mutagenesis ,I don't see any colony after transformation?

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05 August 2024 9,059 3 View

In the case of a wound l recurrence after radical breast cancer and sentinel lymph node biopsy. Are the sentinel lymph node procedure recommended?

In the case of a wound l recurrence after radical breast cancer and sentinel lymph node biopsy. Are the sentinel lymph node procedure recommended? If no axillary lymph node dissection was not...

05 August 2024 8,056 1 View

Tatiana Kapelinskaya

Multi-stage process is better.Maybe you will be useful to these few articles.

Ravindra Muley

Yes I agree with Tatiana. You have to have a totally empirical approach with basic data on virus size, aggregation properties of the virus in given fluid, the types of proteins and their characteristics in the fluid along with membrane characteristics organized to design your experiments and come to conclusion.

Thanks.