What happens when silver nanoparticles (Aggregate of Ag0) are released into the environment? Can it be change into the Ag3+ or remain as same (Ag0)?

I have synthesized silver nanoparticles form green route. While washing the glassware, the nanoparticle are released which must be entering into the environment. I want to know that is there any...

31 December 2018 1,876 14 View

Why the gold nanoparticles synthesized from leaf extract get negatively charged?

I have synthesized gold nanoparticles from aqueous leaf extract of Croton bonplandianum. The zeta potential result showed it is negatively charged. Please explain the exact reason of this...

05 June 2018 4,222 9 View

How to calculate the concentration of carbon quantum dots ?

I have prepared carbon quantum dots by taking 200 mg precursor in 200 mL distilled water. Its very tough to precipitate the carbon quantum dots by centrifugation. It is in solution form. How can I...

31 December 2017 3,630 4 View

How can I calculate the concentration of gold nanoparticles in suspension ?

Hello all,I have synthesized the AuNPs using 1.2 mM auric chloride salt. How can I know its concentration in suspension form?

06 July 2017 3,837 5 View

Why the size and anisotropic nature of the green synthesized AuNPs increased with the increase in metal ion concentration?

The green synthesis of gold nanoparticles was investigated using different metal ion concentration at a fixed inoculum dose and reaction incubation time. It was observed that the size of the...

11 December 2016 813 8 View

What should I write in discussion about the 2D, 3D and average roughness profile of nanoparticles?

09 October 2016 8,193 2 View

Which standard additional technique should be applied for the determination of Iron (III) in terms of validation?

The colorimetric detection of Iron (III) was carried out using AgNPs synthesized by plant extract. Different concentrations of Iron (III) were added into 1 mL solution of AgNPs and the change in...

08 September 2016 6,606 5 View

Why the peak of rGO did not appear in the XRD spectra of Ag-rGO-PANI?

The composite of Ag-rGO-PANI was prepared and characterized through XRD technique. When the XRD spectra of rGO and PANI were taken separately, a characteristic band appeared but these did not...

08 September 2016 7,268 7 View

What differences could be seen in pre and post annealed nanoparticles when characterized through XRD ?

I have synthesized the AgNPs using plant extract and annealed it at 300 degree Celsius. The pre annealed sample was also characterized by XRDNow what differences could be seen?

05 June 2016 3,424 16 View

Why hydrogen peroxide get decomposed into H2O and O2 at higher pH rather OH radical? and why it decomposed into two OH radical at lower pH?

I am investigating the peroxidase like activity of green synthesized gold nanoparticles. While optimizing the pH it was observed that the peroxidase like activity of the gold nanoparticles was...

01 January 1970 9,550 0 View

How to simultaneously perform multiple biochemical assays?

I am a research scholar working on heavy metal stress on plants. I will be doing biochemical characterisation( protein, carbohydrate, proline, antioxidant enzymes and many more assays) at interval...

01 March 2021 6,999 3 View

Does any one can help me choose a reasonable basis set for intermediate metal ions interactions with guanine (i.e Fe2+, Mn2+, Cu2+ and exc.)?

Hello every body Does any one has any idea to help me choose a reasonable basis set for intermediate metal ions (i.e Fe2+, Mn2+, Cu2+ and exc.) interactions with guanine or other DNA organic...

01 March 2021 6,187 2 View

Gas sensor response and recovery time independant of flow rate and chamber volume?

I am trying to obtain the response and recovery times for my gas sensor device. It appears the the response/recovery times are primarily dependant on the flow rate of the gas I inject into the...

26 February 2021 1,511 3 View

What is the suitable range of Sulfur content and Viscosity of Heavy fluid Oil that used in Kiln?

What is the disadvantages of high sulfur content to the ceramic burning process? and what is the effect of outranged viscosity?

24 February 2021 8,219 2 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 this the write procedure for acid digestion of soil for heavy metal analysis using AAS?

How to do acid digestion of soil sample with 3:1 aquaregia in an open vessel?

23 February 2021 3,053 7 View

Open Source IoT Simulators supported by Machine Learning?

Dear Research Gaters, Let me first add context to the question. I am looking to simulate the waste management system and resources of a city. The hardware devices I need to simulate include,...

21 February 2021 2,333 4 View

What type of pressure sensor are usually used in microfluidics?

My team is designing a dual channel microfluidic chip that runs air and water. I think we've decided on the NE1000 syringe pump for it's versatility and feedback control. We will be ordering the...

18 February 2021 9,928 2 View

How to realize refractive index values of 1 to 1.1?

Hello researchers! While studying the literature on refractive index sensors, most of the articles simulate their devices with a refractive index ranging from 1 to 1.1, with small steps in...

17 February 2021 1,578 4 View

I want to simulate a system containing protein and heavy metals; which force field is most reliable for this purpose?

The protein I want to simulate has multiple heavy metals. I wanted to know which force-field I should use with GROMACS to achieve this. Most importantly, do the latest updates in the force-field...

16 February 2021 2,420 1 View