Why does silver nitrate turn brown upon addition of leaf extract but no increase in absorption at 400 - 500 nm?

I am currently biosynthesizing silver nanoparticles using ethanolic leaf extract. Upon addition of the leaf extract to 1mM silver nitrate, the solution turns brown in color after exposure to...

08 November 2020 1,009 6 View

How to present the results of a binary logistic regression for an ecological paper?

I conducted a binary logistic regression using the glm function in R. My binary predictor is the presence or absence of my study species. I have two significant variables but am just not sure what...

19 October 2020 5,398 3 View

Why do we shift fermi to zero in electronic band structures?

In most electronic structures the fermi level is always shifted to zero , why ?

26 April 2020 163 1 View

What is the relationship between Imagination and emotion ?

It seems to me that this relationship is foregrounded in for example Japanese arts, but that the two are often uncoupled , for example in arts in the UK? I'm not restricting my field to the arts,...

13 January 2020 773 3 View

What is the relationship between creativity and democracy?

We have just started ReCreaDe a 3 year project investigating the ways that informal and nonformal learning can widen the scope for understanding the relationship between democracy, diversity and...

02 May 2019 3,162 7 View

How to cryopreserve tobacco BY-2 cells?

There is a protocol by Menges and Murray (2004) Plant J 37, 635-644, but the main description is for Arabidopsis cells, and I cannot make out the exact protocol used for the BY-2 cells. Does...

17 January 2019 6,651 3 View

Is anyone working with Fabry cell lines?

I am currently looking for laboratories or cell line repositories that are working or have worked with Fabry disease who are willing to provide me some transformed Fabry cell lines preferably...

03 August 2017 1,805 2 View

Can i find a short (<1000bp), strong and ubiquitous promoter for drosophila in vivo ?

Many of theses promoter i can find are very long (>2500bp; actin5c or tubulin) and i need some space on my plasmid. So, is it possible to find a smaller promoter ?

16 February 2017 4,447 1 View

Can anyone help me with a data set containing windows API calls for use in detecting malware?

25 October 2016 1,910 2 View

Does anyone have a good protocol for using H2DCFDA to measure ROS in adherent cells as macrophages?

I'm culturing adherent cells (5 x 10^5 peritoneal macrophages and bone marrow-derived macrophages), stimulating them with some drugs and a pro-inflammatory stimulus (LPS) for 24hours. I normally...

27 January 2016 733 4 View

How does the gut microbiome affect the fibrotic process within the liver?

and Can the gut microbe be used for the treatment or diagnosis of liver fibrosis?

02 March 2021 557 2 View

How to purify cycle sequencing PCR reaction?

i am purifying cycle sequencing PCR reaction. i have tried multiple methods given in BDT manual (provided with the instrument) .everytime i used 96 well reaction plate for this purpose. 7 wells...

14 February 2021 8,534 2 View

Can Fecal Microbiota Transplantation from young heathy person to elderly persons improve health conditions?

06 January 2021 7,353 10 View

Fish gut microbiota extraction and identification protocol?

Hi, I need a protocol to extract and identify microbiota from fish gut. Any suggestions? Thank you. (P.s. Something low tech as I am technologically limited, guess no funds and big high tech...

01 January 2021 808 1 View

How to set Decouplers in control systems?

09 December 2020 1,409 5 View

Does anyone know the neutrophil marker for qPCR in human gut (duodenum, ileum, colon) biopsies?

Hello everyone. I have collected intestinal biopsies from stem cell transplanted patients in RNAlater and wish to quantify neutrophils only via qPCR. As we know that the mucosa of gut is filled...

25 November 2020 2,680 3 View

Does anybody know any personality trait manipulations?

Dear All, I would like to write up a hypothetical experiment where I would need to manipulate participants perceptions of the following personality traits: Faithful, Conscientious, Trustworthy,...

22 November 2020 2,335 3 View

What can we infer from different microbial communities in fish gut from two different locations?

Recently I have been interested in microbial communities from gut & intestine of the same fish species popular in Indonesia marine aquaculture, Grouper (Epinephelus sp.), but are raised in...

18 November 2020 510 5 View

Does Arsenophonus replace the other gut bacteria in insects?

02 November 2020 4,628 4 View

When will we have access to Brazilian agricultural censuses microdata publically available? Can Google and Microsoft help it?

Microdata are a wonderful way of analyzing specific issues in an heterogeneous environment. Brazil is wonderfully diverse country, and its countryside is also extremely heterogeneous. We have...

25 October 2020 8,900 2 View