NDLI: Characterization of Spherulites as a Lipidic Carrier for Low and High Molecular Weight Agents

Content Provider	Springer Nature Link
Author	Zhang, Peng Huang, Yixian Makhov, Alexander M. Gao, Xiang Zhang, Peijun Li, Song
Copyright Year	2013
Abstract	To develop spherulite formulations to achieve high entrapment efficiency for both small and macromolecules as well as cell-type specific delivery.Spherulites of various compositions were prepared, and lipid-PEG was incorporated through post-insertion. Calcein and FITC-labeled albumin were employed as model drugs for small and macromolecules. The spherulites were characterized with respect to entrapment efficiency, size, structure, and release kinetics, and the morphology was examined via cryo-EM. Finally, SV119-decorated spherulites were examined for their selective uptake by cancer cells.The spherulites are 170 ~ 290 nm in size. A loading efficiency of 55 ~ 60% can be consistently achieved for both calcein and albumin under optimized conditions. Cryo-EM shows the onion-like morphology consistent with the structure of multilamellar liposomes. A t$_{1/2}$ of 39.3 h and 69.7 h in cargo release in serum was observed before and after PEG decoration, and incorporation of SV119 led to selective delivery of rhodamine-labeled spherulites to PC-3 tumor cells.Our optimized formulations may represent a platform with simple preparation approach, relatively small particle size, high drug loading efficiency for both low and high molecular weight agents, and slow release kinetics for selective delivery of various types of therapeutics to target cells.
Starting Page	1525
Ending Page	1535
Page Count	11
File Format	PDF
ISSN	07248741
Journal	Pharmaceutical Research
Volume Number	30
Issue Number	6
e-ISSN	1573904X
Language	English
Publisher	Springer US
Publisher Date	2013-04-12
Publisher Place	Boston
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Pharmacology/Toxicology Pharmacy Biochemistry Medical Law Biomedical Engineering
Content Type	Text
Resource Type	Article
Subject	Organic Chemistry Pharmacology Molecular Medicine Pharmacology (medical) Biotechnology Pharmaceutical Science

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1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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