Abstract: A bioactive substance delivery system includes a bioactive substance comprising nucleic acid, and a bioactive substance carrier comprising a porous silica particle having a plurality of pores with a diameter of 5 nm to 100 nm, and having not less than 24 hours at which a ratio of absorbance is ½. The porous silica particles may be positively charged inside the pore at neutral pH.

Abstract: A porous silica particles according to an embodiment of the present disclosure includes a plurality of pores with a diameter of 5 nm to 100 nm. The porous silica particles have particular physical properties, can deliver all various drugs by a supported amount in a sustained manner, and can be parenterally administered.

Abstract: A composition for delivering a bioactive material include a porous silica nanoparticle containing pores with an average pore diameter ranging from 1 nm to 100 nm, at least one of (i) a functional group which binds to the pore surface of the porous silica nanoparticle and gives the pore surface a negative charge or a positive charge, (ii) a ligand which binds to the pore surface of the porous silica nanoparticle and specifically binds to the bioactive material, and (iii) a combination of the functional group and the ligand, and a bioactive material having a size to be accommodated within the pores of the porous silica nanoparticle, the bioactive material bound to said at least one of the functional group and the ligand bound to the pore surface of the mesoporous silica nanoparticle and accommodated within the pores of the porous silica nanoparticle.

Abstract: A method for treatment of cancer selected from the group consisting of metastatic ovarian cancer, endometrial cancer, and breast cancer includes administering a composition comprising a compound represented by Formula 1, a pharmaceutically acceptable salt thereof to a subject in need thereof: The composition can efficiently kill cancer cells present in a spheroid form, thereby being usefully applied as novel medicament for metastatic ovarian cancer, endometrial cancer or breast cancer.

Abstract: A composition includes porous silica particles to carry a cell fate modulating factor therein. A method for modulating cell fate includes treating various cells with the composition. The cell fate modulating factor is delivered to a stable target receptor, toxicity to subject cells for delivery may be reduced, a fate of the subject cells can be controlled through sustained release of at least 99 wt. % of the cell fate modulating factor.

Abstract: The present invention provides siRNA or dsRNA, which can effectively inhibit the expression of three highly expressed markers in liver cancer, and a pharmaceutical composition including the same can obtain excellent effects of preventing or treating liver cancer through RNAi. A pharmaceutical composition for preventing or treating liver cancer according to an embodiment of the present invention includes at least one of siRNA which includes a sense RNA having at least one sequence selected from the group consisting of sequences of SEQ ID NOs: 5 to 157, and an antisense RNA having a complementary sequence thereto and dsRNA having at least one sequence selected from the group consisting of sequences of SEQ ID NOs: 158 to 310.

Abstract: A porous silica particles according to an embodiment of the present disclosure includes a plurality of pores with a diameter of 5 nm to 100 nm. The porous silica particles have particular physical properties, can deliver all various drugs by a supported amount in a sustained manner, and can be parenterally administered.

Abstract: A bioactive substance carrier includes a bioactive substance and porous silica particles supporting the bioactive substance and having a plurality of pores with a diameter of 5 nm to 100 nm. The porous silica particles have particular physical properties, can deliver all various drugs by a supported amount in a sustained manner, and can be parenterally administered.

Abstract: A method for treatment of cancer selected from the group consisting of metastatic ovarian cancer, endometrial cancer, and breast cancer includes administering a composition comprising a compound represented by Formula 1, a pharmaceutically acceptable salt thereof to a subject in need thereof: The composition can efficiently kill cancer cells present in a spheroid form, thereby being usefully applied as novel medicament for metastatic ovarian cancer, endometrial cancer or breast cancer.

Abstract: The present invention provides siRNA or dsRNA, which can effectively inhibit the expression of three highly expressed markers in liver cancer, and a pharmaceutical composition including the same can obtain excellent effects of preventing or treating liver cancer through RNAi. A pharmaceutical composition for preventing or treating liver cancer according to an embodiment of the present invention includes at least one of siRNA which includes a sense RNA having at least one sequence selected from the group consisting of sequences of SEQ ID NOs: 5 to 157, and an antisense RNA having a complementary sequence thereto and dsRNA having at least one sequence selected from the group consisting of sequences of SEQ ID NOs: 158 to 310.

Abstract: A quencher containing water-soluble polymer-conjugated nanomaterial effectively quenches the fluorescence of a fluorescent material-conjugated probe. In addition, a composition including the quencher and a fluorescent material-conjugated probe can detect a target material existing at a low concentration, and thus can be favorably used as a composition or kit for providing information necessary for the detection of a biomaterial or the diagnosis of a disease.

Abstract: A composition including porous silica particles according to an embodiment of the present invention may effectively deliver a bioactive material to target tissues or cells in the blood stream by modifying surfaces of the particles to inhibit aggregation and precipitation in the blood. An embolic composition including the composition may have an advantage of having specific physical properties such as biodegradability and sustained release thus to achieve excellent embolization effects and targetability toward target tumor tissues or cells, thereby reducing side effects.

Abstract: A bioactive substance carrier includes a bioactive substance, and porous silica particles supporting the bioactive substance and having a plurality of pores with a diameter of 5 nm to 100 nm. The porous silica particles have particular physical properties, can deliver all various drugs by a supported amount in a sustained manner, and can be parenterally administered.

Abstract: A composition includes porous silica particles to carry a cell fate modulating factor therein. A method for modulating cell fate includes treating various cells with the composition. The cell fate modulating factor is delivered to a stable target receptor, toxicity to subject cells for delivery may be reduced, a fate of the subject cells can be controlled through sustained release of at least 99 wt. % of the cell fate modulating factor.

Abstract: A quencher containing water-soluble polymer-conjugated nanomaterial effectively quenches the fluorescence of a fluorescent material-conjugated probe. In addition, a composition including the quencher and a fluorescent material-conjugated probe can detect a target material existing at a low concentration, and thus can be favorably used as a composition or kit for providing information necessary for the detection of a biomaterial or the diagnosis of a disease.

Abstract: A composition for delivering a bioactive material include a porous silica nanoparticle containing pores with an average pore diameter ranging from 1 nm to 100 nm, at least one of (i) a functional group which binds to the pore surface of the porous silica nanoparticle and gives the pore surface a negative charge or a positive charge, (ii) a ligand which binds to the pore surface of the porous silica nanoparticle and specifically binds to the bioactive material, and (iii) a combination of the functional group and the ligand, and a bioactive material having a size to be accommodated within the pores of the porous silica nanoparticle, the bioactive material bound to said at least one of the functional group and the ligand bound to the pore surface of the mesoporous silica nanoparticle and accommodated within the pores of the porous silica nanoparticle.