Abstract: This invention relates to polysaccharide materials and more particularly to microbial cellulose having suitable implantation properties for repair or replacement of soft tissue. The invention also relates to the use of the implantable microbial cellulose as scaffolds for tendon and ligament repair, tissue closure reinforcement, buttresses for reinforcement of the soft tissue, adhesion barriers, articular cartilage repair, pericardial patches, bone graft substitutes, and as carrier vehicles for drug or other active agent delivery for repair or regeneration of tissue.

Abstract: Active or functional materials such as adsorbents, catalysts, defoamers and the like are combined with inert low density particles, preferably hollow microspheres, to provide a functional material of controlled density. This product is introduced into a liquid with a somewhat higher density under agitation for a time sufficient to accomplish the desired function. Then agitation is stopped and the spent product floats to provide easy separation.