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Raman spectroscopy of stored red blood cell concentrate within sealed transfusion blood bags

机译:储存红细胞的拉曼光谱分子浓缩在密封输血血袋内

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摘要

The standard practice in blood banks worldwide involves storage of red blood cells (RBCs) in plastic bags until they are needed for transfusion. During storage, the cells gradually degrade in functionality, a condition described as RBC storage lesion. Standard analytical techniques cannot assess the blood quality without breaching the sterility of the transfusion bag. In this study, we employed a commercially available spatially offset Raman spectroscopy (SORS) system using a custom designed protocol to non-invasively explore the biochemical changes in RBC concentrate of healthy donors over a storage period of approximately 42 days in standard transfusion bags, under standard storage conditions. The results reveal an increase in the oxygenation state of haemoglobin over the storage period for all donors, but different profiles for each donor. This study demonstrates the feasibility of acquiring consistent biochemical information relevant to the quality of stored blood, in situ through sealed blood transfusion bags using a commercially available instrument.
机译:全世界血库的标准做法涉及在塑料袋中储存红细胞(RBC),直到它们需要输血。在储存期间,细胞逐渐逐渐降低功能性,该条件描述为RBC储存病变。标准分析技术不能评估血液质量而不违反输血袋的无菌性。在这项研究中,我们采用了一种可商购的空间偏移拉曼光谱(SORS)使用定制设计的协议来系统非侵入性地探索在健康供体的RBC浓缩物超过在标准输血袋约42天的储存期的生物化学变化,下标准储存条件。结果揭示了所有供体的储存期内血红蛋白氧合状态的增加,但每个供体的不同曲线。本研究表明,使用市售仪器获得与储存血液质量相关的一致生化信息的可行性。

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