A method of synthesizing copper oxide nanoparticles includes preparing a liquid extract of Rumex vesicarius, dissolving copper salt in the liquid extract to provide a solution with copper nanoparticles, adding a base to the solution with copper nanoparticles to form a precipitate including copper oxide nanoparticles. Copper oxide nanoparticles prepared according to the method are effective photocatalysts for degrading organic dyes and antibacterial agents and exhibit anticancer activities.

A method of synthesizing copper oxide nanoparticles includes preparing a liquid extract of Rumex vesicarius, dissolving copper salt in the liquid extract to provide a solution with copper nanoparticles, adding a base to the solution with copper nanoparticles to form a precipitate including copper oxide nanoparticles. Copper oxide nanoparticles prepared according to the method are effective photocatalysts for degrading organic dyes and antibacterial agents and exhibit anticancer activities.

Among other things, the present disclosure provides technologies useful as super absorbent polymers.

The present invention addresses the problem of providing a pregnancy-induced hypertension syndrome therapy composition having controlled placental permeability. Provided are nicotinamide-encapsulating micelles having a particle diameter of 25-100 nm. Controlling the particle diameter of the nicotinamide-encapsulating micelles enables control of placental permeability so as to make it possible to accumulate nicotinamide-encapsulating micelles in a placental while suppressing transfer to a fetus. Administering the nicotinamide-encapsulating micelles brings about a superior effect of reducing blood pressure during a pregnancy-induced hypertension syndrome.

The present invention addresses the problem of providing a pregnancy-induced hypertension syndrome therapy composition having controlled placental permeability. Provided are nicotinamide-encapsulating micelles having a particle diameter of 25-100 nm. Controlling the particle diameter of the nicotinamide-encapsulating micelles enables control of placental permeability so as to make it possible to accumulate nicotinamide-encapsulating micelles in a placental while suppressing transfer to a fetus. Administering the nicotinamide-encapsulating micelles brings about a superior effect of reducing blood pressure during a pregnancy-induced hypertension syndrome.

The present disclosure discloses a semi-aromatic polyamide and a preparation method therefor. The semi-aromatic polyamide is obtained by polymerization reaction using a diamine, a dibasic acid and a monoacid as main raw materials while adding a special end-capping agent. The semi-aromatic polyamide prepared according to the present disclosure has good thermal stability, a yellowness index of less than 20, a glass transition temperature of 90° C. or above, and a melting point of 300° C. or above, and can be applied to spare parts for fuel pipelines in automobiles, and electronic and electrical industries such as LED panels.

The present disclosure discloses a semi-aromatic polyamide and a preparation method therefor. The semi-aromatic polyamide is obtained by polymerization reaction using a diamine, a dibasic acid and a monoacid as main raw materials while adding a special end-capping agent. The semi-aromatic polyamide prepared according to the present disclosure has good thermal stability, a yellowness index of less than 20, a glass transition temperature of 90° C. or above, and a melting point of 300° C. or above, and can be applied to spare parts for fuel pipelines in automobiles, and electronic and electrical industries such as LED panels.

A compound, comprising a segment having the formula (AA) or (BB):

##STR00001## wherein C.sub.31 and C.sub.32 are carbons (C), wherein R.sub.32 and R.sub.33 are both hydrogens or collectively forms a carbonyl with C.sub.31, wherein R.sub.34 and R.sub.35 are both hydrogens or collectively forms a carbonyl with C.sub.32, wherein X is oxygen (O) or nitrogen attached to an organic residue, wherein R.sub.31 is a hydrogen, a hydroxymethyl, a halogen-substituted methyl, or an unsubstituted methylene —CH.sub.2— group covalently and directly bonded to X, wherein dashed lines (---) represent optional covalent bonds to satisfy valence.

A compound, comprising a segment having the formula (AA) or (BB):

##STR00001## wherein C.sub.31 and C.sub.32 are carbons (C), wherein R.sub.32 and R.sub.33 are both hydrogens or collectively forms a carbonyl with C.sub.31, wherein R.sub.34 and R.sub.35 are both hydrogens or collectively forms a carbonyl with C.sub.32, wherein X is oxygen (O) or nitrogen attached to an organic residue, wherein R.sub.31 is a hydrogen, a hydroxymethyl, a halogen-substituted methyl, or an unsubstituted methylene —CH.sub.2— group covalently and directly bonded to X, wherein dashed lines (---) represent optional covalent bonds to satisfy valence.

The present invention relates to a composition for hydrogel formation, a hydrogel formed by photo-crosslinking same, and a method for preparing the hydrogel and, more specifically, to a composition which comprises a photo-initiator and a polyglutamic acid polymer having a photo-crosslinkable functional group introduced thereto and is capable of forming a hydrogel in real time through photo-crosslinking, to a hydrogel which is formed by photo-crosslinking the composition and can be utilized as a tissue adhesive, a surgical sealant, anti-adhesive agent, or the like due to excellent biocompatibility, superior adhesive strength in wet environments, flexibility, and ease of use, and to a method for preparing the hydrogel.