Microfluidic remote loading for rapid single-step liposomal drug preparation.

Microfluidic remote loading for rapid single-step liposomal drug preparation.
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DOI:
10.1039/c4lc00390j
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发表时间:
2014-09-07
期刊:
影响因子:
6.1
通讯作者:
DeVoe DL
DeVoe DL
中科院分区:
工程技术1区
文献类型:
--
作者:
Hood RR;Vreeland WN;DeVoe DL

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Microfluidic-directed formation of liposomes is combined with in-line sample purification and remote drug loading for single step, continuous-flow synthesis of nanoscale vesicles containing high concentrations of stably loaded drug compounds. Using an on-chip microdialysis element, the system enables rapid formation of large transmembrane pH and ion gradients, followed by immediate introduction of amphipathic drug for real-time remote loading into the liposomes. The microfluidic process enables in-line formation of drug-laden liposomes with drug:lipid molar ratios of up to 1.3, and a total on-chip residence time of approximately 3 min, representing a significant improvement over conventional bulk-scale methods which require hours to days for combined liposome synthesis and remote drug loading. The microfluidic platform may be further optimized to support real-time generation of purified liposomal drug formulations with high concentrations of drugs and minimal reagent waste for effective liposomal drug preparation at or near the point of care.
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