A hemostatic material is described, which eliminates the risks of conventional chitosan-derived products, such as the onset of shellfish allergy and endotoxin contamination, can be used safely for more people, and has an antibacterial property and a hemostatic function that widely-used hydrogels lack, and a wound dressing containing the same. A hemostatic material containing cationized cellulose and a wound dressing containing the hemostatic are described. At least one of hydroxyl groups of the cationized cellulose is modified with —R.sup.2—N.sup.+(R.sup.3)(R.sup.4)(R.sup.5)X.sup.−, other hydroxyl groups of the cationized cellulose have —H, or —(CH.sub.2CH.sub.2O).sub.m—H, R.sup.2 represents C.sub.1-6 alkylene, C.sub.2-6 hydroxyalkylene, —(CH.sub.2CH.sub.2O).sub.1—, or a combination thereof, 1 represents 1 or 2, m represents 1 or 2, and X.sup.− may represent an anionic group.

A hemostatic material is described, which eliminates the risks of conventional chitosan-derived products, such as the onset of shellfish allergy and endotoxin contamination, can be used safely for more people, and has an antibacterial property and a hemostatic function that widely-used hydrogels lack, and a wound dressing containing the same. A hemostatic material containing cationized cellulose and a wound dressing containing the hemostatic are described. At least one of hydroxyl groups of the cationized cellulose is modified with —R.sup.2—N.sup.+(R.sup.3)(R.sup.4)(R.sup.5)X.sup.−, other hydroxyl groups of the cationized cellulose have —H, or —(CH.sub.2CH.sub.2O).sub.m—H, R.sup.2 represents C.sub.1-6 alkylene, C.sub.2-6 hydroxyalkylene, —(CH.sub.2CH.sub.2O).sub.1—, or a combination thereof, 1 represents 1 or 2, m represents 1 or 2, and X.sup.− may represent an anionic group.

The present application provides a medical multi-layer product comprising a layer comprising nanofibrillar cellulose, and a layer of gauze. The present application also provides a medical product comprising the medical multi-layer product, and a cosmetic product comprising the medical multi-layer product. The present application also provides a method for preparing a medical multi-layer product, the method comprising providing a filter, providing a dispersion comprising nanofibrillar cellulose, providing a gauze, applying the dispersion onto the filter, applying the gauze onto the dispersion, and dewatering the structure through the filter to obtain the medical multi-layer product.

The present application provides a medical multi-layer product comprising a layer comprising nanofibrillar cellulose, and a layer of gauze. The present application also provides a medical product comprising the medical multi-layer product, and a cosmetic product comprising the medical multi-layer product. The present application also provides a method for preparing a medical multi-layer product, the method comprising providing a filter, providing a dispersion comprising nanofibrillar cellulose, providing a gauze, applying the dispersion onto the filter, applying the gauze onto the dispersion, and dewatering the structure through the filter to obtain the medical multi-layer product.

Disclosed herein are fluff pulp compositions, absorbent articles comprising the fluff pulp compositions, and related methods. The fluff pulp compositions comprise a chemiluminescent system configured to produce visible light upon contact with an aqueous system. Representative absorbent articles include disposable diapers and adult incontinence products. Representative chemiluminescent systems include bioluminescent systems.

Disclosed herein are fluff pulp compositions, absorbent articles comprising the fluff pulp compositions, and related methods. The fluff pulp compositions comprise a chemiluminescent system configured to produce visible light upon contact with an aqueous system. Representative absorbent articles include disposable diapers and adult incontinence products. Representative chemiluminescent systems include bioluminescent systems.

Artificial cartilage materials for repair and replacement of cartilage, such as load-bearing and articular cartilage. The artificial cartilage materials can include a hydrogel with an internal polymer support network that impart the hydrogel mechanical properties similar to that of natural cartilage. In some examples, the hydrogels include a cross-linked cellulose network and a double network of polyvinyl alcohol (PVA) and polyacrylamide-methyl propyl sulfonic acid (PAMPS) polymers. The hydrogels may include specific formulations of different polymers to impart mechanical properties that are within a cartilage equivalent range. The artificial cartilage materials may include a porous base that is bonded to the hydrogel for interfacing with surrounding tissues and promoting ingrowth of bone and/or cartilage. Thus, the materials may be well suited for forming a synthetic graft, such as an osteochondral graft, for implantation into a patient's body.

Artificial cartilage materials for repair and replacement of cartilage, such as load-bearing and articular cartilage. The artificial cartilage materials can include a hydrogel with an internal polymer support network that impart the hydrogel mechanical properties similar to that of natural cartilage. In some examples, the hydrogels include a cross-linked cellulose network and a double network of polyvinyl alcohol (PVA) and polyacrylamide-methyl propyl sulfonic acid (PAMPS) polymers. The hydrogels may include specific formulations of different polymers to impart mechanical properties that are within a cartilage equivalent range. The artificial cartilage materials may include a porous base that is bonded to the hydrogel for interfacing with surrounding tissues and promoting ingrowth of bone and/or cartilage. Thus, the materials may be well suited for forming a synthetic graft, such as an osteochondral graft, for implantation into a patient's body.

A cell delivery device and a method of producing a three dimensional device which is vascularized when implanted or topologically applied to human or animal body. Cell laden hydrogel (cells mixed with hydrogel) is casted or injected or 3D bioprinted in a leaf-like form, which contains removable parts (templates). After crosslinking, the templates are removed and the channel for vascularization is created. The device is ready for use in vitro or in vivo.

A cell delivery device and a method of producing a three dimensional device which is vascularized when implanted or topologically applied to human or animal body. Cell laden hydrogel (cells mixed with hydrogel) is casted or injected or 3D bioprinted in a leaf-like form, which contains removable parts (templates). After crosslinking, the templates are removed and the channel for vascularization is created. The device is ready for use in vitro or in vivo.