The widely used dyes in the pharmaceutical, chemical, and medical industries have brought about an intensive concern for sustainable development of environment. Membrane separation offers a versatile method classified recycling reuse residual components. In this work, polyimide membranes were synthesized via polymerization 4,4′-(hexafluor-isopropylidene) diphthalic anhydride 1,4-bis (4-aminophe...

This report describes an integrated and modular microsystem providing rapid analyses of trace-level tryptic digests for proteomics applications. This microsystem includes an autosampler, a microfabricated device comprising a large channel (2.4 microl total volume), an array of separation channels, together with a low dead volume enabling the interface to nanoelectrospray mass spectrometry. The ...

When a polymer solution undergoes viscoelastic phase separation, the polymer-rich forms network-like structure even if it is minor phase. This unique feature induced by dynamics, which are constrained temporal entanglement of chains. The fundamental mechanisms separation have already been elucidated theory and experiments over past few decades; however, not yet well understood how occurs in mul...

a series of sorbents containing various amounts of borate groups were prepared by chemical immobilization ofp-aminoethylphenylboric acid on a copolymer- treated organosilane spacer glass plates. it was found thatbaker's yeast cells selectively adhered to these supports. yeast cells stained with procion red he-3b formeddenser and more stable layer on the copolymer-grafted supports compared onto ...

Affinity separation using functionalized microfiltration (MF) membranes provides a hydrodynamically favorable and cost-effective alternative to conventional column chromatography for the separation and purification of a specific protein from mixture of proteins. This type of separation in MF membranes is carried out by functionalizing the membrane with a suitable ligand containing specific inte...