Patent application number | Description | Published |
20100330025 | Surface Independent, Surface-Modifying, Multifunctional Coatings and Applications Thereof - The invention provides surface treatments that reduce or eliminate marine biofouling of various surfaces. A surface that is to be subjected to a marine environment can be treated with a mPEG-DOPA. The treated surface is thus rendered less susceptible to fouling of the surface. | 12-30-2010 |
20110077216 | COMPOSITIONS AND METHODS FOR THE TREATMENT OF ATHEROSCLEROSIS AND OTHER RELATED DISEASES - The present invention provides compositions and methods for the treatment of atherosclerosis and other related diseases. In some embodiments, a method comprises providing a composition and forming a coating of the composition on at least a portion of the interior and/or exterior surface of a tissue lumen or other body surface. The composition may remain associated with the tissue lumen or other body surface even in the presence of a strong flow of a fluid (e.g., blood flow in a blood vessel). The composition may associate with the tissue lumen via a plurality of covalent bonds. In some cases, the compositions may comprise at least one additive, for example, a therapeutically active agent or an imaging agent. | 03-31-2011 |
20120064061 | ADHESIVE COMPOSITION COMPRISING TANNIN, POLY(ETHYLENE GLYCOL), AND WATER, LOWER ALCOHOL OR MIXTURE THEREOF - Provided is an adhesive composition disclosed herein includes tannin, poly(ethylene glycol) and water. The adhesive composition has little toxicity, allows adhesion even in the absence of a thermosetting curing agent, and is hardly soluble in water to show moisture resistance, unlike known tannin adhesives. Therefore, the adhesive composition may be used as a medical adhesive, adhesive depot for sustained release of drug, anti-adhesion agent, cell/protein adsorption barrier and medical hemostatic applicable to various wet environments. | 03-15-2012 |
20120208258 | CONJUGATE OF CATECHOL-MODIFIED POLYETHYLENE GLYCOL WITH PROTEIN OR PEPTIDE AND PREPARATION METHOD THEROF - The present invention relates to a conjugate of a protein or peptide with a polyethylene glycol derivative having catechol, wherein the protein or peptide is mono-PEGylated at the N-terminal with the polyethylene glycol derivative, and to a preparation method thereof. According to the invention, the catechol-PEG derivative can be site-specifically conjugated with the N-terminal amine group of a protein or peptide, so that a homogeneous polyethylene glycol-protein or -peptide conjugate can be obtained in high yield. Unlike a prior art conjugate, the conjugate obtained according to the invention allows the decrease in the activity of the protein to be minimized without chemically modifying the protein, and thus the conjugate has an excellent pharmacological effect. Also, because the conjugate is homogeneous, the process for preparing the conjugate can be simplified. Moreover, the conjugate has uniform biological efficacy in vivo and shows strong resistance to hydrolysis and thus a long in vivo duration time. Accordingly, the conjugate has the effect of increasing the in vivo efficacy and stability of the protein drug. | 08-16-2012 |
20130064786 | siRNA HYDROGEL AND METHOD FOR MANUFACTURING THE SAME - The present invention relates to siRNA hydrogel and a method for manufacturing the same, and more particularly, to siRNA hydrogel for targeted gene silencing, which is nano-structured for targeted gene silencing, and a method for manufacturing the same. | 03-14-2013 |
20140011956 | Substrate-Independent Layer-By-Layer Assembly Using Catechol-Functionalized Polymers - The present invention provides a simple, non-destructive and versatile method that enables layer-by-layer (LbL) assembly to be performed on virtually any substrate. A novel catechol-functionalized polymer which adsorbs to virtually all surfaces and can serve as a platform for LbL assembly in a surface-independent fashion is also provided. | 01-09-2014 |
20140061135 | Water Detoxification by a Substrate-Bound Catecholamine Adsorbent - A bio-inspired method for detoxifying contaminated water is disclosed. In the method, polydopamine, a mussel-inspired adhesive catecholamine was used as an adsorbent to effectively remove from contaminated water three major classes of toxic agents: heavy metal ions (e.g., Cr, Hg, Pb, Cu, and Cd), toxic organic species (e.g., 4-aminopyridine), and radioisotopes (e.g., Lutetium-177). Furthermore, the polydopamine adsorbent was regenerated by treatment with acid or hydrogen peroxide. | 03-06-2014 |
20140127277 | METHOD OF PREPARING COATING FILM CONTAINING NITROGEN MONOXIDE ON SURFACE OF MATERIAL USING CATECHOLAMINE - A method of coating surfaces of various body-implantable materials with control-releasable nitrogen monoxide using a catecholamine, more particularly, technology of preparing a coating film containing a diazeniumdiolate functional group on a surface of a material to be coated using a catecholamine, is provided. The coating film prepared by the method has advantages in that nitrogen monoxide can be stably supplied under an in vivo environment, and can be suitably used in a living body without causing cytotoxicity. Therefore, among the materials having a coating film formed on a surface thereof, the body-implantable material is especially expected to be widely used for medical and health applications including treatment of ischemic disorders such as arteriosclerosis through controlled release of nitrogen monoxide, regulation of penile erections, antibacterial and antiviral effects, and wound healing. | 05-08-2014 |
20140193360 | HYDROGEL COMPRISING CATECHOL GROUP-COUPLED CHITOSAN OR POLYAMINE AND POLOXAMER COMPRISING THIOL GROUP COUPLED TO END THEREOF, PREPARATION METHOD THEREOF, AND HEMOSTAT USING SAME - The present invention relates to an adhesive hydrogel composition containing catechol group-coupled chitosan and Pluronic comprising a thiol group coupled to the end thereof, and more specifically, to an adhesive composition which is safe in vivo and in vitro, is temperature sensitive, and has an excellent hemostatic effect and thus can be used as a bioadhesive, and a medical adhesive, an adhesion barrier and a surface adsorption inhibitor comprising the same. | 07-10-2014 |
20140329967 | Substrate-Independent Layer-By-Layer Assembly Using Catechol-Functionalized Polymers - The present invention provides a simple, non-destructive and versatile method that enables layer-by-layer (LbL) assembly to be performed on virtually any substrate. A novel catechol-functionalized polymer which adsorbs to virtually all surfaces and can serve as a platform for LbL assembly in a surface-independent fashion is also provided. | 11-06-2014 |