Sanal Sebastian Payyappilly

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Questions related from Sanal Sebastian Payyappilly

Why are triblock copolymers more hydrophilic than diblock copolymers?

We observed that a triblock copolymer (PEG12-PCL24-PEG12) is more hydrophilic than diblock (PEG12-PCL12). Micelles prepared from the diblock copolymers were less stable and aggregated much faster.

06 June 2014 8,118 5 View

How can we differentiate a nanostructre formed from an amphiphilic block copolymer is micelle or nanoparticle?

We have synthesized amphiphilic block copolymer of polyethylene glycol and polycaprolactone. Tem study shows that structures formed are spherical in shape. DLS study shows that its size is in...

11 November 2013 3,676 6 View

Alternating magnetic field of 1.7–2.5 kA/m and frequency 375 kHz for bio application?

For bio application we have to generate an alternating magnetic field of 1.7–2.5 kA/m and frequency 375 kHz. Does this require costly equipment? Where are these types of machines used?

08 August 2012 2,343 1 View

Does polycaprolactone affect protein secondary structure determination?

Polycaprolactone is present in the solution containing a protein. Will it affect the secondary structure determination using CD spectrum? Protein dissolved in a solution containing polyethylene...

07 July 2012 1,227 5 View