Overview
Cryopreserved cells are live cells frozen to sub-zero temperatures to halt biological activity, enabling long-term storage without significant loss of function. This technique is critical in research and clinical applications where cell lines must be preserved for reproducibility or future use. Cryoprotectants like dimethyl sulfoxide (DMSO) are often added to prevent ice crystal formation, which can damage cellular structures. The process requires controlled-rate freezing to ensure high post-thaw viability, typically above 80% for most applications.
Physical and Chemical Properties
Cryopreserved cells are stored in specialized media containing cryoprotectants, nutrients, and buffers. The cells remain inert at ultra-low temperatures but regain functionality upon thawing at 37°C. Key metrics include viability (measured via trypan blue exclusion or flow cytometry), doubling time post-thaw, and absence of microbial contamination. Stability varies by cell type; primary cells generally have shorter post-thaw lifespans than immortalized lines.
Main Applications
These cells are indispensable in drug discovery, where consistent cell batches are needed for screening. They also underpin cell therapy (e.g., CAR-T cells) and biobanking for rare or patient-derived samples. In regenerative medicine, cryopreservation enables off-the-shelf availability of stem cells. Industrial uses include biomanufacturing of vaccines and monoclonal antibodies, where master cell banks are preserved for decades.
Safety and Storage
Liquid nitrogen storage poses risks of explosion if sealed containers are improperly vented. Use vapor-phase storage to minimize contamination risks from cross-contact. Transport requires dry shippers to maintain temperatures below -150°C. Regular audits of storage tanks are essential to prevent temperature fluctuations that compromise samples.
B2B Procurement Guide
Prioritize suppliers with ISO 13485 or GMP certification for clinical-grade cells. Request certificates of analysis (CoA) detailing viability, sterility, and mycoplasma testing. For bulk purchases, negotiate customized freezing protocols or aliquot sizes. Consider regional distribution hubs to minimize transit time and ensure chain-of-custody documentation for traceability.
Related Manufacturers
- 主营：冷热台、超高温热台、晶圆加热盘、冷冻台、大尺寸冷热板、探针冷热台、原位催化冷热台、光谱仪冷热台、探针台、液晶材料、高温射频探针台、Instec冷热台、原位冷热台、XRD冷热台、原位拉伸台、迷你高温探针台、液晶综合测试仪、S 型液晶盒、向列型铁电液晶、冷热台比色皿、扫描电镜冷热台、Mini手动探针台、开放式mini探针台、楔形液晶盒、温控探针台
- 主营：贴纸标签、标签定制、机器贴标、细胞冻存标签、耐高温特种、热敏卡门票、耐高温吊牌、银高温标签、不干胶标签、包装牛皮纸、湿巾封口帖、耐高温标签、家具热敏纸、防水高温挂牌、防水吊牌标签、冷链物流标签、高温铝箔标签、彩色三防热敏、铝箔钢铁标签
- 主营：液氮罐、液氮低温容器
- 主营：液氮罐、畜牧冻精罐、生物实验室液氮罐、干细胞罐、航空干式液氮罐、自增压液氮罐、气相液氮罐、液位报警器、液氮推车
- 主营：离心瓶、培养皿、培养瓶、细胞移液管、细胞培养板、三角细胞摇瓶、螺口管、冻存管、离心管、灭菌吸头、滤芯吸头、导电吸头、滤芯吸嘴、工作站吸头、无热源吸头、灭菌枪头盒、移液器吸头
- 主营：2ml冻存管、5ml样品瓶、淋洗液发生罐、细胞过滤器、冷冻管、细胞培养锥形瓶、八联管、巴氏吸管、试剂槽、无粉乳胶手套、移液器、离心管、丁腈手套、棕色冻存管、移液管、冻存盒、2mL样品瓶、冻存管
- 主营：清洗机、16mm颗粒、块状干冰、降温冰块、工业冰块、干冰颗粒、干冰冷链、干冰固态、干冰制造、地区冷链、干冰清洗、食品级餐饮、干冰保温箱、食品级干冰
- 主营：黑色吸头、滤芯吸头、透明吸头、冷冻管、导电吸头、盒装吸头、滤芯吸嘴、工作站吸头、高透明吸嘴
- 主营：819刀片、PCR管、微孔板、细胞板、细胞计数板、内皮细胞培养基ECM、蛋白酶、八联管、转印膜、病理刀片、免疫组化笔、离心管、降温盒、移液槽、蛋白定量试剂盒、病理切片石蜡、PBS片剂、ECL发光液、二甲基亚砜、PCR封板膜、梯度降温冻存盒、PVDF转印膜、盒装吸头、湿转印仪、牛血清白蛋白
- 主营：医用氧气、液氧、二氧化碳、氮气、液氮、高纯氮气、食品级氮气、高纯二氧化碳、食品级二氧化碳
- 主营：杀青机、灭菌机、烘干箱、烘干机、烤虾设备、烘干设备、杀菌设备、灭菌设备、茶叶微波机、微波干燥机、烤大虾设备、低温杀菌机、微波杀菌机、茶叶杀青设备、烘烤熟化设备、保鲜杀青设备、黄豆熟化设备、阿胶膨化设备、微波干燥设备、微波烘干定型机、中药材杀虫设备、中药材干燥设备、微波设备、烘干杀菌
- 主营：恒温解冻仪、光化学反应仪、氮吹仪、快速样品冷冻匀浆系统、一体化蒸馏仪、脂肪测定仪、喷雾干燥机、培养箱、震荡箱
- 主营：液氮速冻柜、生鲜速冻机、单门速冻机、全自动冷冻仪、液氮隧道速冻机
- 主营：多功能蒸馏仪、氮吹仪系列、摇床、细胞破碎机、氮气发生器、培养箱系列、震荡器系列、组织研磨仪、微波消解仪、石墨消解仪、恒温解冻仪、漩涡混合仪、离心机、固相萃取仪系列、分子蒸馏仪、喷雾干燥机、高低温恒温槽系列、脂肪测定仪、集菌仪、微生物限度检测仪、薄膜蒸发器、酒精蒸馏仪、光化学反应仪、二氧化硫蒸馏仪、真空平行浓缩仪
- 主营：试剂冷链、仓储冷链、恒温运输、冷冻运输、冷冻货运物流、恒温物流、冷藏物流、餐饮冷链、医药冷链、食品冷链、低温物流、冷链专车、冷链运输、冷藏运输、冷链物流、药品冷链、冷链车运输、冷链零担运输、冷链零担整车、餐饮门店冷链