The present disclosure provides compositions and methods useful for tissue engineering including a composition having chemically modified RNA (cmRNA) encapsulated in or complexed with a non-viral delivery vehicle and a biocompatible, bioresorbable scaffold and methods of using the composition to regenerate, for example, bone tissue.

A bandage is formed of a film layer, an adhesive applied to the film layer, and an absorbent layer connected to the film layer. The absorbent layer comprises a compressed fabric. A plurality of microneedles are disposed within the absorbent layer, each microneedle having an end that extends through the absorbent layer and is configured to penetrate a wound when the bandage is applied over the wound. An antimicrobial agent disposed within the bandage and in communication some of the microneedles, so that upon application of the bandage to the wound, the antimicrobial agent is transported though said microneedles to the wound. The microneedles not in communication with the microbial agent are configured to transport fluid from the wound to the absorbent layer.

A 3D printed tubular construct, such as a nephron, with or without embedded vasculature as well as methods of printing tubular tissue constructs are described.

This invention relates to a method of treating a subject suffering from a condition characterized by damaged or degenerated soft tissue (such as, for example, intervertebral discs) by injecting swellable microgel particles to a location within the subject containing the damaged or degenerated soft tissue, after which said microgel particles covalently bind together in vivo to form a doubly cross-linked gel.

The invention broadly provides an implantable medical device comprising a liquid rope coil scaffold. The implant may consist essentially of the scaffold, where the scaffold is the implant and pores in the scaffold may incorporates one or more agents (i.e. drugs, growth factors), or the scaffold may comprise only part of the medical device, for example an implant that is partly or fully covered with a layer of the scaffold. The porosity of the scaffold may be tailored to suit the application, for example a porosity that is tailored to hold and release drug or biological molecules in vivo, a porosity to provide a surface roughness that is conducive to promotion of in-vivo bio-integration (for example vascularisation) or prevention of fibrosis, or a porosity that provides structural strength. The scaffold may be essentially tubular, or may be provided as a planar structure, or may be any shape and can be used to coat, fully or partially any shape or size of medical implant.

A process for producing a 3D tissue culture model by (a) printing a drop of bio-ink to a substrate; (b) printing a drop of activator to the drop of bio-ink to form a hydrogel droplet; (c) repeating steps (a) and (b) in any order to form a hydrogel mold adapted to receive a drop containing cells; (d) printing a drop containing cells to the hydrogel mold; and (e) repeating steps (a) and (b) in any order to form a 3D tissue culture model comprising the cells encapsulated in the hydrogel mold.

This invention relates to microgel compositions, and in particular, to gel compositions formed by binding a plurality of individual microgel particles together. The present invention also relates to processes for the preparation of these compositions and their use for particular applications, especially medical applications such as the repair of damaged, degenerated or inappropriately formed load-bearing tissue (such as, for example, intervertebral discs).

Disclosed are various bioactive and/or biocompatible materials and methods of making the same.

Described herein is the synthesis of reinforced adhesive complex coacervates and their use thereof. The reinforced adhesive complex coacervates are composed of (a) at least one polycation, (b) at least one polyanion, and (c) a reinforcing component. The adhesive complex coacervates described herein can be subsequently cured to produce strong, cohesive adhesives. The reinforced adhesive complex coacervates have several desirable features when compared to conventional adhesives. The reinforced adhesive complex coacervates are effective in wet or underwater applications. The reinforced adhesive complex coacervates described herein, being phase separated from water, can be applied underwater without dissolving or dispersing into the water. The reinforced adhesive complex coacervates have numerous biological applications as bioadhesives and bioactive delivery devices. In particular, the reinforced adhesive complex coacervates described herein are particularly useful in underwater applications and situations where water is present such as, for example, wet tissues in physiological conditions.

Systems, methods, and apparatuses for generating and releasing iodine are described. Some embodiments may include a dressing member including a plurality of iodine-forming reagents and a water-swellable material. In some embodiments, the dressing member may include water-swellable fibers. The water-swellable fibers may each include a water-swellable material in which iodine-forming reagents are dispersed. As liquid comes into contact with and is absorbed by the water-swellable material, the iodine-forming reagents may come into contact with each other, causing an iodine-forming reaction to occur, producing iodine.