Chitosan is a biopolymer derived from chitin, a natural polymer found in the shells of crustaceans such as shrimp, crabs, and lobsters. It is a linear polysaccharide composed of randomly distributed β-(1→4)-linked D-glucosamine (deacetylated unit) and N-acetyl-D-glucosamine (acetylated unit). Chitosan has a range of applications due to its unique physical and chemical properties, including its ability to form films, gels, and beads, and its biocompatibility.
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Chitosan
3D-printed long-acting 5-fluorouracil implant to prevent conjunctival fibrosis in glaucoma
Abstract
Objectives
To develop a sustained release 5-fluorouracil (5-FU) implant by three-dimensional (3D) printing to effectively prevent conjunctival fibrosis after glaucoma surgery.
Methods
3D-printed implants composed of polycaprolactone (PCL) and chitosan (CS) were…
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Transferrin-modified chitosan nanoparticles for targeted nose-to-brain delivery of proteins
Nose-to-brain delivery presents a promising alternative route compared to classical blood–brain barrier passage, especially for the delivery of high molecular weight drugs. In general, macromolecules are rapidly degraded in physiological environment. Therefore, nanoparticulate systems can be used to…
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Recent approaches for enhancing the performance of dissolving microneedles in drug delivery…
Dissolving microneedles (dMNs) are promising versatile drug delivery systems for the transdermal delivery of numerous drugs, enabling their use in a wide range of biomedical and pharmaceutical applications. Being made of water-soluble polymers, dMNs own several advantages, including fast dissolution…
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Pharmaceutical polymers and P-glycoprotein: Current Trends and Possible Outcomes in Drug Delivery
Drug resistance is considered a key reason behind the failure of therapeutic medications for several chronic diseases, including hypertension, cancer therapeutics, and antimicrobial agents. Among the strategies used to overcome drug resistance are therapeutic targeting of other factors involved in…
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Advances in Formulation and Manufacturing Strategies for the Delivery of Therapeutic Proteins and…
Therapeutic proteins and peptides (TPPs) are increasingly favoured above small drug molecules due to their high specificity to the site of action and reduced adverse effects resulting in increased use of these agents for medical treatments and therapies. Consequently, there is a need to formulate…
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Clarithromycin and Pantoprazole Gastro-Retentive Floating Bilayer Tablet for the Treatment of…
Bilayer/multilayer tablets have been introduced to formulate incompatible components for compound preparations, but they are now more commonly used to tailor drug release. This research aimed to formulate a novel gastro-retentive tablet to deliver a combination of a fixed dose of two drugs to…
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Development, in vitro Evaluation, and in vivo Study of Adhesive Buccal Films for the Treatment of…
Objective: Development and evaluation of bucco-adhesive films of Gliclazide for pediatric use.
Methods: Sixteen films were formulated using a different combination of Gelatin, Hydroxy propyl methyl cellulose (HPMC), polyvinyl alcohol, Hydroxy propyl cellulose (HPC), chitosan, polyethylene glycol,…
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Preparation of nanodelivery systems for oral administration of low molecular weight heparin
Low molecular weight heparins (LMWHs) are only used parenterally. They have low oral absorption and bioavailability due to their high anionic charge density, exposure to enzymatic degradation and first pass effect. The aim of this study was the development and evaluation of nanodelivery systems to…
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Plant Bioactive Ingredients in Delivery Systems and Nanocarriers for the Treatment of Leishmaniasis:…
Background: This study was designed considering the challenges of leishmaniasis treatment and the benefits of carriers of drug delivery systems to review plant bioactive ingredients in delivery systems and nanocarriers for the treatment of leishmaniasis.
Methods: The methodology of this review…
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Encapsulation of cannabidiol in oil-in-water nanoemulsions and nanoemulsion-filled hydrogels: a…
Abstract
Hypothesis
Lipophilic cannabidiol can be solubilized in oil-in water nanoemulsions, which can then be impregnated into chitosan hydrogels forming another colloidal system that will facilitate cannabidioil's release. The delivery from both systems was compared, alongside structural and…
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