SOPs for Liposome and Emulsion Formulations

The purpose of this SOP is to describe the procedure for incorporating cryoprotectants in liposome formulations to enhance the stability of liposomes during freezing and freeze-drying processes. Cryoprotectants help prevent the fusion, leakage, and destabilization of liposomes, which is crucial for maintaining the integrity and bioavailability of the encapsulated drug or active ingredient during long-term storage.
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This SOP outlines the procedure for preparing nanoliposomes for drug delivery applications. Nanoliposomes are nanoscale lipid-based vesicles that encapsulate drugs, improving their bioavailability and targeted delivery. This technique is critical for developing advanced drug formulations with enhanced stability, controlled release, and targeted delivery properties.
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The purpose of this SOP is to describe the procedure for preparing liposomes using high-pressure homogenization. This technique applies high shear forces to lipid suspensions to reduce particle size and create uniform, small liposomes suitable for drug delivery and other applications. High-pressure homogenization is widely used for producing liposomes with consistent size distribution and stability.
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The purpose of this SOP is to outline the procedure for using the sonication technique to reduce the size of liposomes. Sonication is a method that applies ultrasonic waves to break down larger multilamellar vesicles (MLVs) into smaller unilamellar vesicles (SUVs) or other desired sizes. This method ensures that liposome formulations achieve uniformity in size, improving their stability and efficacy for drug delivery.
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This SOP describes the preparation of liposomes using the extrusion method. The extrusion technique is used to reduce liposome size and achieve uniform size distribution. Liposomes are passed through membrane filters under pressure, resulting in small unilamellar vesicles (SUVs) with consistent size and characteristics.
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The purpose of this SOP is to provide step-by-step instructions for the preparation of liposomes using the microfluidization technique. Microfluidization is a high-shear method used to reduce the size of liposomes and achieve uniformity in size. It is an efficient technique to generate small unilamellar vesicles (SUVs) or large unilamellar vesicles (LUVs) with high encapsulation efficiency and improved stability.
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The purpose of this SOP is to describe the detailed steps involved in the reverse phase evaporation method (REV) for preparing liposomes. This technique allows for high encapsulation efficiency of hydrophilic drugs by forming water-in-oil emulsions and subsequently removing the solvent, leading to the formation of liposomes. The reverse phase evaporation method is often used for drug delivery and other biomedical applications requiring high encapsulation rates.
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The purpose of this SOP is to describe the step-by-step procedure for preparing liposomes using the solvent evaporation method. This technique involves dissolving lipids in organic solvents, evaporating the solvent to form a lipid film, and hydrating the lipid film to form liposomes. This method is widely used in liposomal drug delivery systems and requires careful control to ensure consistency and quality in liposome formation.
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The purpose of this SOP is to outline the step-by-step procedure for preparing liposomes using the thin-film hydration method. This method involves dissolving lipids in an organic solvent, creating a thin lipid film by solvent evaporation, and hydrating the film with an aqueous phase to form liposomes. The thin-film hydration method is widely used due to its simplicity and ability to produce stable liposomes for drug delivery applications.
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This SOP outlines the process for incorporating cholesterol into liposome formulations. Cholesterol is a critical component used to modulate the fluidity and stability of liposomal membranes. Proper incorporation of cholesterol into liposome formulations ensures that liposomes maintain their structural integrity and exhibit the desired release characteristics.
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