LUO Yuanli, QIAO Bin, CAO Jin, et al. Preparation of HMME-Gd liquid fluorocarbon nanoparticle contrast agent and study on dual-mode imaging in vitro[J]. Journal of Clinical Ultrasound in Medicine, 2020,22(11):801-805.
LUO Yuanli, QIAO Bin, CAO Jin, et al. Preparation of HMME-Gd liquid fluorocarbon nanoparticle contrast agent and study on dual-mode imaging in vitro[J]. Journal of Clinical Ultrasound in Medicine, 2020,22(11):801-805. DOI: 10.16245/j.cnki.issn1008-6978.2020.11.001.
and to observe their ultrasound(US)/MRI imaging in vitro.MethodsLipids
cholesterol
HMME-Gd and perfluoropentane(PFP)were used as raw materials to prepare nanoparticles by membrane hydration and emulsification.The general physical properties were observed by optical microscope and transmission electron microscope. The size and surface potential were measured by particle size analyzer.The encapsulation efficiency of HMME-Gd was determined by UV-Vis.The effect of US/MRI in vitro of HMME-Gd-PFPNPs was observed.Results HMME-Gd-PFPNPs were successfully prepared. Under optical microscope and transmission electron microscope
it was spherical with regular shape and uniform size.The size of HMME-Gd-PFPNPs was(250.27±11.9)nm
the surface potential was(-26.17±0.45)m V
and the encapsulation efficiency of HMME-Gd was(84.70±0.35)%.Under low intensity focused ultrasound(LIFU)irradiation
the US imaging signal was significantly enhanced in vitro with the intensity of LIFU increased.At the same time
the MRI effect of nanoparticles in vitro was concentration dependent on HMME-Gd-PFPNPs.ConclusionHMME-Gd-PFPNPs is successfully prepared
and it can be used for US/MRI dual-model imaging in vitro.