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Precise in situ analysis of liposome physical stability based on cryo-electron microscopy
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Jing LIU, Meng-yu YAN, Yao HAN, Ya YU, Lin HE, Xin-qiu GUO*
Chinese Journal of New Drugs | 2026, 35(8) : 869 - 874
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Chinese Journal of New Drugs | 2026, 35(8): 869-874
Precise in situ analysis of liposome physical stability based on cryo-electron microscopy
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Jing LIU, Meng-yu YAN, Yao HAN, Ya YU, Lin HE, Xin-qiu GUO*
Affiliations
  • Instrumental Analysis Center, Shanghai Jiao Tong University, Shanghai 200240, China
Published: 2026-04-30 doi: 10.20251/j.cnki.1003-3734.2026.08.011
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This study employs cryo-electron microscopy (Cryo-EM) to precisely evaluate the physical stability of liposomes in situ. Cryo-EM eliminates the need for drying and staining, thereby preserving the native morphology of liposomes to the greatest extent. It clearly reveals the bilayer membrane structure and the spatial distribution of encapsulated substances, overcoming issues such as deformation, hydration layer interference, and probe convolution effects associated with traditional characterization methods. Cryo-EM enables efficient and intuitive assessment of liposome morphology, particle size, size distribution, and the state of encapsulated materials. Cryo-EM provides reliable scientific evidence and quality control standards for the development and optimization of liposomal formulations. Ultimately, it enhances the consistency and comparability of drug development and production, meeting the growing clinical demands.

liposomes  /  cryo-electron microscopy  /  morphology  /  particle size  /  critical quality attributes
刘静, 颜梦雨, 韩瑶, 余娅, 何琳, 郭新秋. 基于冷冻透射电镜技术的脂质体物理稳定性精准原位分析. 中国新药杂志, 2026 , 35 (8) : 869 -874 . DOI: 10.20251/j.cnki.1003-3734.2026.08.011
Jing LIU, Meng-yu YAN, Yao HAN, Ya YU, Lin HE, Xin-qiu GUO. Precise in situ analysis of liposome physical stability based on cryo-electron microscopy[J]. Chinese Journal of New Drugs, 2026 , 35 (8) : 869 -874 . DOI: 10.20251/j.cnki.1003-3734.2026.08.011
Year 2026 volume 35 Issue 8
55
8
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doi: 10.20251/j.cnki.1003-3734.2026.08.011
  • Online Date:2026-10-26
  • Published:2026-04-30
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  • Accepted:2025-08-25
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    Instrumental Analysis Center, Shanghai Jiao Tong University, Shanghai 200240, China
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表12种不同金属材料的力学参数
科
Family
属数
Number of
genus
种数
Number of
species
占总种数比例
Percentage of
total species (%)
属
Genus
种数
Number of
species
占总种数比例
Percentage of total
species (%)
鹅膏菌科Amanitaceae 2 11 5.26 鹅膏菌属 Amanita 10 4.78
小菇科 Mycenaceae 2 12 5.74 丝盖伞属 Inocybe 5 2.39
多孔菌科 Polyporaceae 8 14 6.70 蜡蘑属 Laccaria 5 2.39
红菇科 Russulaceae 3 23 11.00 小皮伞属 Marasmius 6 2.87
小菇属 Mycena 11 5.26
光柄菇属 Pluteus 5 2.39
红菇属 Russula 17 8.13
栓菌属 Trametes 5 2.39
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