Can anyone help me obtain this paper?

06 July 2014 8,442 3 View

Does anyone have experience doing tyrosinase inhibitory measurements of crude plant extracts or isolated compounds?

I am looking for clear-cut protocols for the quantification of tyrosinase inhibition of plant extracts or isolated compounds from plant sources. What are the differences if crude extracts were...

02 March 2014 4,577 4 View

Is it possible to extract Cholecalciferol (Vitamin D3) from plants?

I may have detected vitamin D3 from my plant extracts using GC-MS. I searched the literature and came up with studies that say it's possible and others that says otherwise. What is your expert...

01 February 2014 7,444 11 View

Do you have any procedures or papers regarding analysis of phenols using HPLC-MS/MS?

I am planning to profile the phenolics in my plant extract using HPLC-MS/MS.

09 October 2013 5,495 4 View

UV-Visible Spectra Database - can anyone help?

Does anyone know a free online UV-Visible spectra database where someone can compare and verify their experimental spectra with? I am dealing with organic compounds (e.g. phenolics).

08 September 2013 2,072 12 View

Column chromatography of phenolics?

Can anyone provide some relevant information on using column chromatography in separating phenolics from crude plant extracts? Is it ok to use silica gel or do I have to use another type of...

08 September 2013 5,053 25 View

Does anyone have experience with separating phenolics via column chromatography?

Please give me some pointers and things to consider in phenolics separation using column chromatography. What are your experiences in doing so? What specific solvents did you use to elute your...

07 August 2013 5,944 7 View

Does anyone have experience doing anti-inflammatory property measurements using interleukin-8 (IL-8) gene expression inhibition test?

Is it possible to test IL-8 gene expression inhibition on ethanolic extracts? I am planning to do anti-inflammatory property measurements of my leaf extracts. Please give me some advice and...

07 August 2013 6,514 3 View

Does anyone have experience with qualitative and quantitative determination of cyanogenic glycosides in plant extracts?

I am planning to add either a qualitative detection or quantification of cyanogenic glycosides on my research. Please help me find protocols and methods in doing such analyses. Depending on the...

06 July 2013 9,971 6 View

ACE inhibition assay

I want to test the ACE inhibitory effect of my phenolic extracts. Can you give me a proper and suitable protocol for doing it? My phenolics came from the leaves of a plant material.

06 July 2013 6,354 10 View

Resistor definition in Piezoelectric bimorph with ANSYS workbench

Hello, good day! I am trying to simulate similar bimorph piezoelectric harvester with below commands. However, the output power doesn't change with resistor value. Please help to find the reason. ET,10,CIRCU94,0 !SET UP RESISTOR R,1,100000 !RESISTANCE VALUE TYPE,10 !SET ELEMENT TYPE E,1,2 !CREATE RESISTOR BETWEEN NODES 1 AND 2 Thanks in advance Regards,

02 March 2021 0 0 View

Where can I find life cycle inventory or assessment of non woven materials?

Dear network, I am looking for the LCA or LCI or at least the energy balances of the non woven fabrics process for my master project, in specific for natural fibers, yet I have found...

02 March 2021 9,662 1 View

I am interested in medicinal chemistry field, which books are highly recommended to learn from?

I am at the beginner level in drug design and drug discovery, and I am interested to learn more about this field. Which books are highly recommended to start from and gives me all essential...

02 March 2021 8,437 2 View

Which is better medicine or food in obesity?

Preference in terms of the scientific aspect

28 February 2021 796 2 View

Necessary tube lenght to cool Natural gas in a dry-ice cooling bath?

I have a tank which contains natural gas at 250 Bar and 293 Kelvin. I want to cool the gas in a dry-ice cooling bath to about 195 Kelvin. The gas will flow in a copper-tube through the bath with a...

27 February 2021 8,128 1 View

Exit velocity of natural gas from pressurized tank?

Hi Guys. I'm a mechanical engineer and have a bit trouble, would be very glad if you could help me with my questions. I have a pressurized tank which contains Natural Gas at 200 Bar and 293...

26 February 2021 6,253 3 View

Why do the air flow results vary totally when adding scalar in CFD ?

Dear All, We are using Autodesk cfd to calculate the air flow in a single sided naturally ventilated room, where air flow depends only on buoyancy due to temperature difference between inside and...

25 February 2021 9,602 4 View

How can plant phytochemistry be included in discussions about whole plant traits?

I am using the concept of plant functional traits (Cornellisen et al., 2003) in a paper. Considering descriptions for whole plant traits (life history; life form; growth form; plant height;...

24 February 2021 6,831 5 View

What is this fern?

Please help me to identify this fern species. Thank you in advance.

24 February 2021 2,435 5 View

How we can measure Kemp % in wool without using of benzene?

Would you please let me to know about the methods for measurement of medullation and Kemp % on animal? My problem is that the wool sampling and sending to laboratory is not possible. So I would...

21 February 2021 7,260 4 View