As we all know, India has a plethora of universities, and many people graduate from them. Because it is possible for someone to falsify degree, secure based verification mechanism required. It will be achieved in an existing system through the exchange e-mails or postal mail; however, this time-consuming process that insecure owing human involvement. And, order solve these drawbacks, implemente...

Abstract An amphiphilic block copolymer of polyphosphinoborane has been prepared by a mechanism‐led strategy the sequential catalytic dehydropolymerization precursor monomers, H 3 B ⋅ PRH 2 (R=Ph, n‐hexyl), using simple pre‐catalyst [Rh(Ph PCH CH PPh ) ]Cl. Speciation, mechanism and polymer chain growth studies support step‐growth process where reversible transfer occurs, i.e. /oligomer/polymer...

Abstract In the traditional digital identity authentication, there are potential security threats caused by user’s personal privacy data being too centralized and vulnerable to attack, centralization will lead redundancy, poor permeability, lack of master control, high overall cost, abuse central rights. The authentication technology based on block chain can perfectly solve problem appeal. main...

We here report the synthesis and characterization of a complex polymeric architecture based on a block copolymer with a cylindrical brush block and a single-chain polymeric nanoparticle block folded due to strong intramolecular hydrogen-bonds. The self-assembly of these constructs on mica surfaces was studied with atomic force microscopy, corroborating the distinct presence of block copolymer a...

A series of n-alkyl-bis-alpha,omega-trimethylammonium (bisQn) compounds was synthesized, and their ability to block K+ currents through a K+ channel from sarcoplasmic reticulum was studied. K+ channels were inserted into planar phospholipid membranes, and single-channel K+ currents were measured in the presence of the blocking cations. These bisQn compounds block K+ currents only from the side ...

Block copolymers can be obtained by combining catalytic chain transfer polymerization (CCTP) and conventional free radical emulsion of ethylene.