How Bacteria changes the pH of nutrient broth media?

Bacteria can change the pH of media by producing EPS. In my work, initial pH of nutrient broth is 6.5 and after the bacterial growth pH increases about 7.5. Which type of reactions can involved in...

01 February 2019 7,393 5 View

Is siderite protective in nature for metals?

If mild steel exopsed to a solution for 3 months. after the 3 months exposure siderite is present in corrosion products. I observe that in this case corrosion is more in comparision of control. I...

10 November 2017 6,173 2 View

Why pitting occur in distilled water and deionized water when i perform cyclic polarization and anodic polarization?

I am facing a problem when i perform anodic and cyclic polarization in distilled and deionized water for SS304L. the pH of distilled water and deionized water is 6.3 to 6.5. and when i perform all...

09 October 2017 9,644 2 View

What are the effects of sulfites on corrosion?

06 July 2017 7,716 1 View

What is the difference between impact factor and impact index?

Please tell me what is the difference between impact index and impact factor? Suppose If any journal have impact index 4.3 what does it means?

09 October 2016 6,010 1 View

Bacterial growth by spectrophotometer

Why we take the optical density of bacteria at 600 nm generally. what is the basic concept behind it?

03 April 2016 1,557 6 View

Which technique i can use tomeasure biofilm thickness on metal surface?

How can i measure the biofilm thickness diposited on metal surface?

02 March 2016 2,753 5 View

What is the production process of CaFe ferroalloys?

I looking for ferro calcium production process

03 March 2021 1,755 4 View

1 nm thick MgO thin-film to be deposited on Si wafer using thermal evaporation. What will be the optimum deposition conditions?

Favourable conditions of base pressure, rate of deposition. Also, by which characterisation technique to be used to verify the thickness of the deposited film.

28 February 2021 3,640 3 View

Can water be extracted from Olivine?

I have always been interested in geology and wondered about how unique structures of materials behave in different circumstances. I stumbled upon Olivine, the magnesium iron silicate, and heard...

28 February 2021 7,330 4 View

What is the exact mechanism of the antimicrobial effect of local anesthetics?

The antimicrobial effect of local anesthetics has been known for more than 50 years, but it still seems to have an unclear mechanism of action. which bacteria? which concentration? etc etc. ....

27 February 2021 4,450 2 View

I want to performe MALDI-TOF MS for bacterial identification, I would appreciate it if anyone can tell me the matrix solution preparation protocol ?

based on what I've studied on multiple papers, for peptide and protein identification Alpha-cyano-4-hydroxycinnamic acid (CHCA) is an appropriate matrix to use, I also know that the CHCA powder...

26 February 2021 6,799 3 View

How does charge on working electrode changes with rising potential?

During performing CV of a GCE or modified GCE, we rise the potential in the first half of the cycle and reduce it in reverse half. During the first half, what is the nature of charge on GCE or...

25 February 2021 7,994 3 View

Uncertianiny in using dry or wet basis in mixing a sediment with fuel oil?

Hello I'm currently working on a topic related to studying the anaerobic biodegradation of TPH in marine sediments. In this work, sediment should be mixed with fuel oil to a concentration of 20 g...

24 February 2021 9,839 3 View

Advice on growing lactobacillus species in the lab?

Hello everyone, For part of my PhD project, I'm hoping to grow some lactobacillus species in the lab so that I can create standard curves for a qPCR quantification of a faecal sample. However, I...

24 February 2021 3,157 6 View

Recommendations on homogenizers for RNA isolation?

I will be performing RNA isolation with frozen lung biopsy samples and am in the market for a tissue homogenizer. I am wanting a homogenizer that will fit in a 1.5ml tube. I was looking at the...

24 February 2021 3,623 3 View

Universal bacterial primers targeting a mRNA?

Hi, I'm looking for universal primers targeting a bacterial mRNA to quatify bacterial load by qPCR in a complexe mixture (eukaryote and prokaryote RNA). Ribosomal RNA being depleted, I absolutly...

22 February 2021 9,969 3 View