Over the past decade, multivesicular liposomes (MVL) have shown significant progress in continuous drug delivery, offering high encapsulation efficiency, structural stability, size variability, and diverse delivery routes. CD Formulation leverages cutting-edge technologies and expertise to develop high-performance, intelligent multivesicular liposomes to meet specific research needs.
Multivesicular liposomes (MVL) are micrometer-sized spherical particles composed of non-centrosymmetric lipid bilayers, enclosing drug molecules within their internal aqueous compartments. This polyhedral structure ensures the integrity and sustained release of small molecules, peptides, or proteins during non-vascular administration. The release of multivesicular liposomes follows a three-phase pattern. Initially, there is the rapid release of the free drug followed by a sudden burst of the drug. This is then succeeded by a slower lag phase in the release rate, attributed to the reorganization of the lipid membrane. At temperatures above the lipid phase transition, membrane fusion occurs, leading to the collapse of the honeycomb structure. The final stage involves secondary release caused by erosion due to lipid hydrolysis.
Fig.1 Schematic plot of the speculated drug release mechanism of MVL particles. (Chaurasiya, A., et al., 2022)
We offer formulation studies and parameter optimization such as charged phospholipids, cholesterol, neutral lipids, process temperature, process time and shear, etc.
Multivesicular liposome drug delivery can be achieved via various administration routes, such as intramuscular, subcutaneous, intravenous, subarachnoid, intra-articular, intravitreal, and epidural injections. We can provide research on diverse methods of drug delivery.
We provide physical and chemical characterization (particle size, charge distribution, charge load and encapsulation rate, viscosity, rheology, appearance, internal and external pH, internal and external ionic strength, stability, etc.). In vitro characterization services include cell uptake rate assay, cytotoxicity assay, and evaluation of tumor cell-targeting ability. In vivo characterization services such as in vivo distribution analysis, in vivo bioactivity analysis, in vivo stability analysis, etc.
Techniques and Platforms | Specifics |
Double emulsification technique |
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Spray atomization technique |
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Characterization techniques |
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In vitro and In vivo characterization platform |
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Technology: Multivesicular liposomes for the sustained release of angiotensin I-converting enzyme (ACE) inhibitory peptides techniques
Journal: Molecules
IF: 4.2
Published: 2024
Results: In this paper, the authors aim to add water-soluble substances to MVL to enhance slow release and prevent drug destruction and elucidate the functions and mechanisms of different components. In vitro controlled release studies show that MVLs have good controlled release performance and thermal stability. Angiotensin-converting enzyme (ACE) inhibitory peptide (AP) -MVLs reduced angiotensin-converting enzyme (ACE) inhibitory activity by only 2.84% after oral administration and 5.03% after passing through the stomach, which could be used as a promising sustained-release drug delivery system.
Fig.2 Schematic representation of the Angiotensin-converting enzyme (ACE) inhibitory peptide (AP) -MVLs. (Li N, et al., 2019)
As a leading company in nanoparticle development, CD Formulation is dedicated to providing excellent multivesicular liposome products. Please do not hesitate to contact us if you require any assistance.
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