How the presence of negative surface charge over iron nanoparticles remove hexavalent chromium?

As per my knowledge, there should be some interaction then only it get reduced. Pls. comment how reduction/removal/adsorption happens. What factors act as a driving force in interaction and...

08 September 2016 2,119 8 View

How does nanoremediation have advantages over microbial remediation?

Being a nanoparticles, it may show some toxic effect, then how it would be a better remediation practices than microbial remediation...

04 May 2015 2,318 6 View

Is there a comparative study among suspended and biofilm mode of nutrient degradation?

02 March 2015 1,669 3 View

Can you recommend a media to isolate acidophilic chromium resistant bacteria?

02 March 2015 1,967 3 View

What will be advantage of allowing acidotolerant metal resistant bacteria over neutrophilic metal resistant bacteria in heavy metal bioremediation ?

I think acidotolerant bacteria will have wider pH range for survivality and growth, hence they can work over a wide range of pH along with helping in the solubilisation of metal from the soils,...

31 December 2014 9,597 1 View

Why do I observe and increase of nutrient concentration in my bacterial culture after 24 hours of nutrient uptake?

I think after achieving the death phase by the bacteria it started releasing its concentration whatever bacteria accumulated within their system. Waiting for your valuable reply .

11 December 2014 3,721 5 View

What is the range of acidophilic, moderate acidophilic and acidotolerate bacteria?

Since it is difficult to fnd out the correct range and different papers shows different ranges hence I need to know your view regarding this question.

11 December 2014 7,412 9 View

Does the pressure(-600 mmHg) affects pH?

When I conducted the degassing experiment using decompression under anaerobic condition(and I used ferrous based chelating agent), the oxidized ferric were observerd. So, could you tell me the...

03 March 2021 4,892 5 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

Which database would give me this list of chemical components?

Dear colleagues: I would like to know if anyone knows of a database that gives me the parameters pH, K, K, Mg, P, C, N, Zn, Cu, Ni and Cd of common foods. I find a lot of information of proteins,...

26 February 2021 5,525 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

Why is NH4OH added in heavy metals limit test?

The limit test I'm referring to is USP method II. In this procedure you need to dropwise add 6N of NH4OH to the sample until it the pH is alkali. After that you need to dilute and add HOAc until...

23 February 2021 2,049 3 View

Is there an ideal incubation time of RGO-modified SPCE before subsequent use, i.e., electrochemical characterization or further modification?

I notice that upon washing and air-drying of my RGO/SPCE surface and characterizing again via DPV, the current response towards ferricyanide probe significantly decreases. My worry is that the...

22 February 2021 5,324 3 View

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22 February 2021 9,932 11 View

Can anyone help or comment on solubilising chlorobutanol in aqueous injections in minimum time possible?

Please suggest solubilisation of chlorobutanol in injections. Tried pH and high temperature. But the issue is of assay drop. If anyone can suggest any solution. Its a commonly used excipient for...

21 February 2021 7,397 1 View

What reaction will occur when adding hexamine into ammonium nitrate in an acidic medium?

Hello, I am investigating properties of water in oil emulsion explosives. And adding hexamine (hexamethylenetetramine) into one of the phases that are used to make the emulsion should increase the...

21 February 2021 8,680 1 View