What scientists should do to bring down predatory journals and publishers?

Recently there has been an upsurge in the number of predatory journals and publishers. These predators publish anything at all fee. Beall's list is a good starting point but what do scientists...

11 December 2017 9,363 5 View

Are you interested in a research collaboration?

We are a Kenyan Team working on traditional spontaneously fermented food products. Our project involves isolation and characterization of microorganisms using molecular diagnostic techniques and...

05 June 2015 9,146 4 View

Looking for a collaboration in Biotechnology or Chemical Engineering?

I am currently working on a proposal on the application of lignocellulosic biomass for production of value-added chemicals in Kenya. I am looking forward to collaborate with a senior faculty...

11 December 2014 3,089 4 View

What is the best method of detecting and quantifying Fumonisins?

I want to detect the presence of fumonisins in some samples and later quantify the level of contamination. What is the most accurate yet simple method to achieve this?

03 April 2014 4,380 4 View

How many plasmids can one use for expressing genes in E.coli?

I have 3 plasmids; kanamycin, ampicillin and chloramphenicol- as markers and the plasmids are compartible. Can these plasmids be retained in E. coli without becoming a burden or should I transfer...

03 April 2013 8,438 5 View

Does anyone know of a suitable software that I can use to predict the genes that I can overexpress or delete?

I want to improve yields of my target compound and I believe by traditional metabolic engineering, I cannot easily target specific genes from the metabolic pathways.

02 March 2013 6,778 3 View

No title

01 February 2013 1,813 11 View

Are the genes cloned into pT7 blue vector expressed in E. coli K12? No DE3 and IPTG induction! The vector has T7 promoter upstream, any experience?

If the genes could be expressed, I can avoid transfer to another plasmid

31 December 2012 2,881 1 View

flexibility of polymers chain

effect of double bond on the flexibility of polymers

07 April 2021 0 0 View

Formulation of polymer color flakes

I am writing to request some information for making polymer color flakes. I would appreciate the help.

17 March 2021 0 0 View

Polymer composites suddenly solidifies?

I am making polymer composite by solvent mixing method. When I am trying to add filler solution in polymer solution it quickly get solidified. How to make them then uinform? It doesn't give time...

03 March 2021 7,540 4 View

What techniques can I use to determine the miscibility of polymer blends?

The term miscibility refers to the single-phase state in thermodynamics. I do not mean the compatibility of different components. To determine the miscibility I know several techniques such as...

03 March 2021 4,107 4 View

Can polymer concentrations be calculated based on the number average molecular weight?

Hello, I spin-cast two different polymers onto wafers and measure their height as a function of initial concentration. For polymer A, I have the weight-average molecular weight (Mw) as well as...

28 February 2021 7,882 2 View

What is the density for pva electrospining?

I'm Juan Carlos, a high school student who is working with electropinning, I made an electropinning machine with a 21g needle and a 30kv high voltage source and the distance between my needle is...

28 February 2021 298 3 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

What could be reason for getting such type of graph for complex impedance in case of polymer blend films?

Its effect appears in real part of ac conductivity also. Can anyone suggest any reason behind it?

26 February 2021 3,487 3 View

No title

I am trying to find how to know the density needed for a pva electrospinning in a 0.6mm neddle, the electrospinning will be from top to bottom and the problem I really have is the solution because...

25 February 2021 2,615 3 View

How to prepare a thin polymer film by post-polymerization/crosslinking?

24 February 2021 2,362 5 View