The present invention discloses a preparation method of a biomedical titanium implant with a function of eliminating a surface biomembrane. The method includes the following steps: firstly synthesizing mesoporous polydopamine (MPDA) nanoparticles by a “one-pot method”, constituting a surface-aminated titanium material through diacid corrosion and modification of a 3-aminopropyltriethoxysilane (APTES) coupling agent, and integrating the MPDA nanoparticles into the surface of the titanium material through Michael addition reaction; secondly, taking MPDA anchored on the surface of the titanium material as a photothermal material and a photosensitizer carrier, where MPDA contains abundant aromatic rings capable of facilitating abundant loading of a photosensitizer (indocyanine green, ICG) through π-π stacking interaction; and finally further modifying biocompatible RGD polypeptides on the surface of MPDA by Michael addition reaction, where a modified titanium material is referred to as Ti-M/I/RGD.

An intraocular lenses having a plurality of drug-containing microspheres attached to the intraocular lens. The intraocular lenses can be used for patients undergoing cataract surgery and reduces the need for recurrent surgery, follow-up treatment or postoperative eye-drops. Also provides a method for manufacturing such an intraocular lens and the use of an intraocular lens in the treatment of cataract.

The present invention is an inflatable balloon which is enclosed by an expandable cover which becomes increasingly porous/permeable during expansion. The balloon is coated or enclosed with a matrix which contains a pharmaceutically active agent. During expansion of the balloon, the pharmaceutically active agent is released or extruded through the expandable cover into a body cavity such as an artery or vein. The present invention also provides for a method of treating a disease or condition by delivering the inflatable balloon to a particular body cavity.

A nanofibrous mat comprising: electrospun nanofibres forming said mat; and ceramic particles dispersed throughout said nanofibres and comprising a ceramic matrix and a dopant releasably encapsulated within said ceramic matrix, wherein the ceramic particles are dispersed throughout the nanofibres during electrospinning of the nanofibres, whereby said dopant is protected by said ceramic matrix during said electrospinning.

One of the significant challenges to translation of intravenously administered nanomaterials has been complement-mediated infusion reactions which can be lethal. Slow infusions can reduce infusion reactions, but slow infusions are not always possible in applications like controlling bleeding following trauma. Nanocapsules based on polyurethane are introduced as candidates that do not substantially activate complement protein C5a and the PEGylation and functionalization of the nanocapsules with the GRGDS peptide to create a new class of hemostatic nanomaterials is disclosed. Advantageously, the nanocapsules substantially avoid complement-mediated infusion reactions, promote faster clotting than controls, maintain maximum clot firmness, and do not activate pro-inflammatory cytokines.

Described herein is a method of coating a prosthetic device, such as an ocular prosthetic device, the method comprising nanoelectrospraying droplets comprising an active ingredient and/or a carrier species onto a surface of the prosthetic device in a predetermined pattern, the nanoelectrospraying involving controlling the flow rate of the droplets from a nozzle of the nanoelectrospraying equipment by controlling the voltage between the nozzle and the ocular prosthetic device. Also described herein are ocular prosthetic device formable according to the method.

The present invention relates to an emulsion composition for chemoembolization comprising a nanoparticle comprising a drug and a biocompatible polymer, a water-soluble contrast agent and a water-insoluble contrast agent, and a water-insoluble drug as well as an aqueous drug can be administered in a form of stable emulsion, and drugs are slowly released, thereby enhancing the effect of chemoembolization.

Disclosed are Self-Gelling materials and structures or materials or structures having one or more self-gelling components that overcome existing gel limitations due to hydrogel localization for medical applications by providing, for example, 1) microstructurally, or physically, anchored characteristics to help localize the gel, and the overall printed, or otherwise formed structure, giving structural form to the gel that allows the gel to be localized within the body, and even sutured in place, and mitigates gel migration and extends its residence time; 2) to provide an underlying 3D printed structure to help contain and support the gel after implantation; and more. Self-Gelling 3D printed structures may be further processed via milling to yield deconstructed scaffold micro-granules, with the composition and nano-/micro- structure of the original larger structure. Deconstructed scaffold micro-granules may be hydrated to form a micro-granule embedded gel network that can be injected, giving form to injectable gels.

In a medical instrument that is inserted into an affected area or tissue to perform treatment, a technique of delivering various drugs to a target site is desired.

Provided is a medical instrument that is inserted into an affected area or tissue to perform treatment, wherein a drug-loaded nanostructure is covalently bound to the medical instrument via a photosensitive linker immobilized on the surface of at least a portion of the medical instrument.

Disclosed herein are bilayered substrates useful for treating infection and/or inflammation in a subject such as, for example, the upper respiratory system. In another aspect, the layers of the substrates disclosed herein include biocompatible and biodegradable polymers as well as one or more bioactive agents useful for treating infection and/or inflammation. In a further aspect, the layers of the substrate can contain nanoparticles incorporating the bioactive agents. In any one of the above aspects, the bioactive agents are released at a constant rate over a period of time. In still another aspect, the substrates disclosed herein are useful for reducing the mass of biofilms and reducing or preventing inflammation by inhibiting the production of interleukin-8.