Characterization and preliminaryin vivoevaluation of a self-expandable hydrogel stent with anisotropic swelling behavior and endoscopic deliverability for use in biliary drainage

Abstract

We demonstrate the potential of a novel self-expandable biliary stent comprised of poly(vinyl alcohol) (PVA) hydrogel with anisotropic swelling behavior, endoscopic deliverability, and removability in vivo, using a porcine stent model.

Seawater-degradable, tough, and fully bio-derived nonwoven polyester fibres reinforced with mechanically defibrated cellulose nanofibres

“…Structures with a long period (2π/ q ) were evaluated according to Bragg's law, where q is the value of the peak ( q max ) in the q 2 I ( q ) − q plot. 33…”

“…Structures with a long period (2π/q) were evaluated according to Bragg's law, where q is the value of the peak (q max ) in the q 2 IIJq) − q plot. 33 Gel permeation chromatography (GPC). The molecular weight of PHBH was determined by GPC.…”