Abstract: The present invention discloses a grinding clamp, comprising a clamp main body. The clamp main body is provided with multiple elastic clamping portions, the elastic clamping portion and the clamp main body are of an integral structure formed integrally, and the elastic clamping portion is provided with a clamping gap, a clamping hole, and a distracting hole. The clamping hole and the distracting hole are both located at the clamping gap, a product is clamped at the clamping hole by means of the self-elasticity of the elastic clamping portion, the distraction hole is used for docking an external switch, and the clamping gap is distracted via the external switch so as to place the product; by providing an elastic clamping portion integrally formed with the clamp main body on the clamp main body, such that the addition of relying on an external connecting piece is eliminated, the structure is simplified.

Abstract: The present invention is directed to a novel group of amino acid-based poly(ester urea)s (PEUs) for use in biodegradable adhesive and related methods for their making and use. These novel amino acid-based PEUs have a wide variation in mechanical properties and degradation behavior that can be tuned by varying the amino acids and polyols used to form the polyester monomers that form the PEUs. Importantly, these novel PEUs have been shown to be non-toxic in vitro and in vivo and may be suitable to a wide variety of biomedical and other uses. In some embodiments, the adhesive properties of these degradable amino acid-based poly(ester urea) adhesives has been further improved by the incorporation of controlled amounts of catechol functional groups into the side chains of the PEU via post-polymerization functionalization chemistry.

Abstract: The present invention is directed to a novel group of amino acid-based poly(ester urea)s (PEUs) for use in biodegradable adhesive and related methods for their making and use. These novel amino acid-based PEUs have a wide variation in mechanical properties and degradation behavior that can be tuned by varying the amino acids and polyols used to form the polyester monomers that form the PEUs. Importantly, these novel PEUs have been shown to be non-toxic in vitro and in vivo and may be suitable to a wide variety of biomedical and other uses. In some embodiments, the adhesive properties of these degradable amino acid-based poly(ester urea) adhesives has been further improved by the incorporation of controlled amounts of catechol functional groups into the side chains of the PEU via post-polymerization functionalization chemistry.