Abstract: The present application provides a preparation method for a three-dimensional gelatin scaffold with interconnected pores and an application thereof. The preparation method includes the steps of: dissolving a pharmaceutical gelatin to obtain a gelatin solution; emulsifying the gelatin solution using an ultrasonic crusher to obtain a gelatin emulsion; pouring the gelatin emulsion into a preset mold, and freezing and curing the gelatin emulsion to obtain a cured product; performing vacuum drying of the cured product using a low-temperature freeze dryer to obtain a dried product; cross-linking and denaturing the dried product with glutaraldehyde to obtain a cross-linked product; and washing the cross-linked product several times, followed by freeze-drying to obtain a three-dimensional gelatin scaffold with interconnected pores.

Abstract: The present application provides a preparation method for a three-dimensional gelatin scaffold with interconnected pores and an application thereof. The preparation method includes the steps of: dissolving a pharmaceutical gelatin to obtain a gelatin solution; emulsifying the gelatin solution using an ultrasonic crusher to obtain a gelatin emulsion; pouring the gelatin emulsion into a preset mold, and freezing and curing the gelatin emulsion to obtain a cured product; performing vacuum drying of the cured product using a low-temperature freeze dryer to obtain a dried product; cross-linking and denaturing the dried product with glutaraldehyde to obtain a cross-linked product; and washing the cross-linked product several times, followed by freeze-drying to obtain a three-dimensional gelatin scaffold with interconnected pores.

Abstract: An electrical connector includes an insulative housing (1), a plurality of contacts (2), and a shell (3) surrounding the housing. The insulative housing includes a base portion (10) with a plurality of passageways (111) extending therethrough, a tongue portion (12) extending forwardly from the base portion, and a rib (11) formed at an end of the tongue portion. A plurality of terminals are received in the passageways and extend forwardly for dividing the tongue portion into several parts. Each terminal comprises a conductive surface (22, 23). The rib extends adjacent to one of the terminals and partially protrudes beyond the conductive surface of the one of the terminals.