A plastic material for extended release of a bio-active agent, the plastic material comprising a structural polymer, at least one bio-active ingredient embedded within the structural polymer as solid islands, a liquid binding material embedded within the structural polymer as granules, and a carrier liquid absorbed within the liquid-absorbent material. The carrier liquid may be sufficiently non-compatible with the structural polymer so that at least a portion of the carrier liquid is released from the liquid-absorbent material through the structural polymer to an outer surface of the plastic material over a period of time, such as a week or more, a month or more, or about three months. The bio-active agent comprised in the at least one bio-active ingredient may be sufficiently soluble in the carrier liquid at room or body temperature so that the carrier liquid released to the outer surface comprises the bio-active agent in solution.

A plastic material for extended release of a bio-active agent, the plastic material comprising a structural polymer, at least one bio-active ingredient embedded within the structural polymer as solid islands, a liquid binding material embedded within the structural polymer as granules, and a carrier liquid absorbed within the liquid-absorbent material. The carrier liquid may be sufficiently non-compatible with the structural polymer so that at least a portion of the carrier liquid is released from the liquid-absorbent material through the structural polymer to an outer surface of the plastic material over a period of time, such as a week or more, a month or more, or about three months. The bio-active agent comprised in the at least one bio-active ingredient may be sufficiently soluble in the carrier liquid at room or body temperature so that the carrier liquid released to the outer surface comprises the bio-active agent in solution.

The object of the present invention relates to the new and surprising use of sulfated hyaluronic acid (HAS) as regulator agent of the cytokine activity (pro- and antiinflammatory) and consequently the use of HAS for the preparation of a new medicine for the prevention and treatment of pathologies associated with the activation and/or deficiency of cytokines of a pro- and antiinflammatory nature. The Applicant has in fact discovered its exclusive capacity in modulating the activity of these particular proteins, it has studied the action mechanism and demonstrated the substantial difference between the different sulfated types known in the state of the art, but above all it has demonstrated an unexpectedly high activity of HAS vs different types and strains of Herpes virus, HIV, Cytomegalovirus and the virus of vesicular stomatitis.

The object of the present invention relates to the new and surprising use of sulfated hyaluronic acid (HAS) as regulator agent of the cytokine activity (pro- and antiinflammatory) and consequently the use of HAS for the preparation of a new medicine for the prevention and treatment of pathologies associated with the activation and/or deficiency of cytokines of a pro- and antiinflammatory nature. The Applicant has in fact discovered its exclusive capacity in modulating the activity of these particular proteins, it has studied the action mechanism and demonstrated the substantial difference between the different sulfated types known in the state of the art, but above all it has demonstrated an unexpectedly high activity of HAS vs different types and strains of Herpes virus, HIV, Cytomegalovirus and the virus of vesicular stomatitis.

A contact lens product having a cornea repair function includes a composition in the form of a solution. The composition includes gold nanoparticles and at least one auxiliary repairing ingredient. The gold nanoparticles are present in an effective concentration from 0.01 ppm to 3000 ppm and have an average particle size from 0.01 nm to 100 nm. The at least one auxiliary repairing ingredient is selected from the group consisting of chondroitin sulfate, α-lipoic acid, 2-aminoethanesulfonic acid, and potassium L-aspartate and present in an amount greater than 0 wt % and less than 20 wt % based on the composition being 100 wt %.

A contact lens product having a cornea repair function includes a composition in the form of a solution. The composition includes gold nanoparticles and at least one auxiliary repairing ingredient. The gold nanoparticles are present in an effective concentration from 0.01 ppm to 3000 ppm and have an average particle size from 0.01 nm to 100 nm. The at least one auxiliary repairing ingredient is selected from the group consisting of chondroitin sulfate, α-lipoic acid, 2-aminoethanesulfonic acid, and potassium L-aspartate and present in an amount greater than 0 wt % and less than 20 wt % based on the composition being 100 wt %.

The invention provides low-molecular-weight over-sulfated polysaccharides with anti-heparanase activity prepared from marine native exopolysaccharides excreted by mesophilic marine bacteria from a deep-sea hydrothermal environment and relates to the use of these low-molecular-weight over-sulfated polysaccharides for the prevention or treatment of mucopolysaccharidoses, in particular mucopolysaccharidoses type III (Sanfilippo syndrome).

The invention provides low-molecular-weight over-sulfated polysaccharides with anti-heparanase activity prepared from marine native exopolysaccharides excreted by mesophilic marine bacteria from a deep-sea hydrothermal environment and relates to the use of these low-molecular-weight over-sulfated polysaccharides for the prevention or treatment of mucopolysaccharidoses, in particular mucopolysaccharidoses type III (Sanfilippo syndrome).

A fucosylated chondroitin sulfate oligosaccharide having the structure as shown in J, and further disclosed is a method for preparing the fucosylated chondroitin sulfate oligosaccharide: using a chondroitin sulfate A salt as a raw material, sequentially performing enzymolysis, a group protection operation, and glycosylation to synthesize the oligosaccharide compound; the certainty of the described structure allows said oligosaccharide to be applied to the medical field.

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The invention relates to a composition, and a medicament for preventing or stopping of metastases, in particular metastases originating from epithelia cancer, such as skin cancer, lung cancer, stomach cancer, brain cancer, breast cancer, colo-rectal cancer, prostate cancer, pancreas cancer, head/neck cancer, and esophagus cancer. It has been found that the present composition irreversibly converts cancer cells with metastatic potential into harmless cells with no metastatic potential.