Qiime2- No reads passed the filter. How to set the trunc value?

Hi, I am working on some 16S sequencing data, and seems some of them are low quality. I am not sure how to set the trunc value in dada2. qiime dada2 denoise-paired \ --i-demultiplexed-seqs...

30 January 2021 6,213 3 View

What is the best way to prepare anaerobic medium?

Hi, I would like to prepare anaerobic medium for cultivation of gut microflora. I have an anaerobic chamber. How should I remove oxygen from the medium? Is it enough to leave it for 48 hours in...

05 October 2020 3,093 4 View

Any online tools for metagenomics data analysis, specifically 18S rRNA?

Could you please recommend any online tools for metagenomics data analysis for 18S rRNA?

01 March 2020 5,424 5 View

Is it possible to do SEM on a cross-section cut of a fresh leaf?

Hello, I'm working with pulsed electric field applied to lemongrass leaves to generate pores on the cell membrane to enhance essential oil extraction. I would like to know if there is a way to...

20 October 2019 1,364 3 View

How can I preserve leaf samples to measure the trichome density?

Hi. I'm working in a tropical rainforest and I need to measure the density of trichomes, but due the lack of equipment in the station, I need to preserve the samples during 1 month to then count...

10 October 2019 1,460 4 View

Intracellular staining of peritoneal mast cells for cytokine detection by flow cytometry?

Hi! Can anyone suggest a protocol for intracellular staining of peritoneal mast cells for cytokine detection by flow cytometry?

19 March 2019 9,262 3 View

Any experience/opinion on sociolinguistic interviews without the interviewer, i.e., only a questionnaire and the interviewees recording themselves?

I want to interview non-native speakers of English, but I am not a native speaker, so to avoid certain implications of this (unnatural setting, accommodation, etc.), I am thinking of sending them...

11 October 2017 4,867 4 View

Does anyone know of a good reference that describes the biology of monocyte/macrophage recruitment and differentiation during wound healing?

Please send me the title/author if you know of a good reference. Thank you!

04 October 2017 7,695 3 View

How do I do immunocytochemistry staining on non-adherent cells?

Are centrifugations required between every wash step/blocking/antibody incubation in order to not lose the cells? Is there a way to make them adhere through a fixative or some other process in...

03 October 2017 8,611 4 View

Staining plant by Safranine O Fast Green FCF?

14 March 2017 1,404 1 View

I need to image mesoporous silica nanoparticles that are in ~100 nm size and do high resolution TEM to look at mesopores. what grids should I use?

Need to image mesoporous silica nanoparticles using the TEM. Also, need high resolution TEM images to see the mesoporous structure. Kindly suggest what kind of grids to use. Thanks, Shatadru

02 March 2021 1,787 2 View

Have someone successfully used the ER alpha (Santa Cruz sc-8002) antibody in immunostaining ?

Santa Cruz now recommends this new antibody (F-10) but I can't find a publication using this reference. I'm working on human et non human primate hypothalamus and so far, it doesn't work. Is...

02 March 2021 10,003 2 View

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02 March 2021 3,060 3 View

Is There Any Feasible Method To Test Fluorescent Compounds Other Than Fluorescence Spectrometers ??

Is There Any Feasible Method To Test The Efficiency Of Fluorescent Compounds Other Than UV Spectrometers ? Suggestions Would Be Appreciated !

02 March 2021 5,785 3 View

Does Napabucasin soluble in dichloromethane and in ethanol?

I need to prepare a solution of Napabucasin (inhibitor of cancer cell stemness) in dichloromethane. The drug is expensive, so maybe somebody already tried to do it. If it is soluble, what is the...

02 March 2021 9,945 3 View

Shall I skip the measurement model in SmartPLS?

Hello everyone, I had run a mediation model in SmartPLS using questionnaires that were already validated among my statistical population. A professor who edited my paper -though she is not...

01 March 2021 3,052 3 View

Issues with Permeabilization during Flow Cytometry?

Hello Everyone. Currently I am working to characterize macrophages in the myocardium after ischemia-reperfusion injury in rats. Due to the low total cell number isolated from rat hearts I can...

01 March 2021 3,867 3 View

Which cell line should we use to perform biological dosimetry experiments?

We are preparing some experiments based on irradiating cells under different conditions in order to evaluate the effects in terms of DNA damage, genetic expression, etc. As our project is...

01 March 2021 3,355 3 View

How to accurately quantify chitin?

Hi all, I have been working on the quantification of chitin in insect samples and feed for a while but I can notice that the quantification methods (e.g. exposure to HCl, NaOH, and weighing sample...

01 March 2021 1,843 2 View

Is it possible for two human neuronal cell lines to have different gene sequence for the same protein?

I am looking at the ATP1A2 (Sodium/Potassium ATPase alpha subunit 2) in two human neuronal cell lines. Expression levels of this protein seems to be almost equal when detected by one antibody....

01 March 2021 3,607 3 View