1. Adoption of full temperature monitoring system: Hunan Cell and Tissue Bank adopts a full temperature control system for transportation. When the sample collection is completed, the system is instantly turned on, which can accurately sense the temperature change and guarantee the stability of the temperature during transportation. 2. 36-hour delivery: In order to ensure the activity of the stem cells, the company arranges specialized personnel and vehicles to ensure that the samples are delivered to the laboratory within 36 hours.

Ensure the uniqueness and traceability of stem cell samples.

Strict quality inspection is required before cell collection, before preparation, before storage and during storage, and the complete inspection program includes pathogenic microorganisms, endotoxin, cell properties, cell purity, cell quantity and activity, cell safety and effectiveness.

(1) Deep cryogenic liquid nitrogen storage: -196℃ storage environment, cells enter dormant state; (2) Continuous power supply system, centralized nitrogen supply system: Continuous and stable supply of electricity and liquid nitrogen is realized to ensure long-term stability of deep cryogenic storage conditions; (3) Liquid level alarm system, oxygen concentration automatic monitoring and alarm system: Comprehensively ensure cell safety and personnel safety;(4) Electronic cell storage management system: Realize intelligent information management and cell traceability.