Zinc could be a “golden” bullet for bioabsorbable stents

This series of scanning electron microscope images illustrates the corrosion of zinc wire implanted in rats' arteries at 1.5 months, 3 months, 4.5 months and 6 months. The wires degraded at a rate just below 0.2 millimeters per year -- the "magic" value for bioabsorbable stents -- for the first three months. After that, the corrosion accelerated, so the implant would not remain in the artery for too long. Image: Patrick Bowen.

Some materials dissolve too quickly in the body, and some hang around forever — zinc, however, may be just right.

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Spinning for Safety: Biocompatible Fibres from Renewable Sources

Bicomponent fibres for use in humans.

Melt-processed fibres have been found to be biocompatible and biodegradable with no cytotoxicity.

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Chemical modification of LPEI for gene delivery

Schematic representation of the synthesis of PEtOx-b-LPEI.

The PEtOx-b-LPEI copolymer could have important applications in gene delivery and gene silencing as a polymeric vector.

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Gold interconnects: stretching biological applications

The researchers believe this technology is best used in implantation systems, in vivo and in vitro drug delivery, and current μ-TAS applications where interconnects are desired to connect electrical chip components to the human body.

Polyimide supported gold interconnect fabrication paves the way for medical grade stretchable electronics.

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More biocompatibility for polyurethane

Platlet adhesion morphology

Polyurethane can be made more biocompatible for medical devices by grafting chitosan on it.

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Edible Electronics: Purely Biocompatible Electrical Devices

edible-electronics-devices

Scientists from the University of Linz engage in developing electronics that can simply be thrown onto the compost heap or, if in a pinch, could even be eaten!

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