Enhancing Drug Delivery Through Liposome

By Irma Farrell


Scientists have been working on improving drug delivery to different parts of the body. Delivery vehicles used in this case have different structures and design. The search for a mechanism to deliver the drugs to a specific area has favored the use liposome. The features that scientists are looking for include specificity with receptors, higher payload, stealth mode operation to enhance its circulatory lifetime, less harmful side effects, efficacy and better uptake.

Liposomes have been subjected to numerous tests over the years with incredible results. Scientists are therefore focusing on the potential of this element. This mechanism beats the traditional methods because it is resistant to enzyme metabolism, responds well during target drug administration and is highly soluble as well.

The structure and design of liposomes make drugs that are encapsulated using the compounds to be easily absorbed in the body. They are flexible making it easier to control release of important elements in the body. There is reduced toxicity because lower dosages are administered. This means that side effects are reduced. It is the preferred mode of delivering gene therapy drugs.

Researchers are narrowing down on the size of liposomes used in drug delivery. They have an effect on efficacy by determining residence time and circulation in the blood. They affect the rate of absorption in to the cell and efficacy during targeting. The ultimate result is effectiveness or failure of a drug. Getting the accurate size of a particle is paramount in ensuring the effectiveness of the drug.

Getting an expert in solution development and manufacture depends on experience and dedication. You will get a solution that is customized for the project at hand. There are a variety of lipid and liposomal solutions provided for the market. Other solvents and surfactants are used in optimizing existing solutions.

Solutions are developed using elaborate procedures that include semi-continuous, batched and scalable. The latest equipment are used to increase accuracy and ensure effectiveness. The processes used make it easy to scale these solutions to meet heavy industrial demands. Sterilization and purifications are also carried out. Tangential flows are used during purification. Other available services include homogenization using high pressure as well as extrusion. This will facilitate sizing and solution preparation.

Other scalable processes include injection of solvents, dispersion or lipid hydration, lyophilization and related aseptic processes. Liposomal analysis is carried out to establish distribution and sizes of the particles. Other analysis procedures are morphology or electron microscopy, encapsulation efficiency tests and determination of zeta potential. Other procedures carried out include drug loading.

A reliable company will deliver good results depending on the track record and commitment to meet customer demands. Diversity of the compounds they are dealing with is an indication of capability and should be considered as well. All the solutions will be developed and manufactured within the same factory reducing the possibility of errors and variations.

Liposome is preferred because it avoids detection by body enzymes. It is favored because of its nature to target specific areas. Drugs that are naturally toxic will be delivered easily using a specific mechanism. This specificity will be designed during construction.




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