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Full-Text Articles in Pharmacy and Pharmaceutical Sciences
Modulation Of Antibacterial Activity And Cytotoxicity In Amphipathic Cyclic Peptide [R4w4] Using Histidine Substitution, Ryan Stueber
Modulation Of Antibacterial Activity And Cytotoxicity In Amphipathic Cyclic Peptide [R4w4] Using Histidine Substitution, Ryan Stueber
Pharmaceutical Sciences (MS) Theses
Antibiotics have been the gold standard frontline defense against bacterial infections for decades. At the same time, these infecting bacteria have continued to evolve to resist developed antibiotics in an almost endless cycle. As such, we aim to take an alternative approach utilizing antimicrobial peptides (AMPs) as a means to end this cycle. [R4W4] is among known AMPs that demonstrated antimicrobial activity against methicillin-resistant staphylococcus aureus (MRSA) with a minimum inhibitory concentration (MIC) of 2.67 μg/mL. This peptide had notably effective antimicrobial activity, especially relative to linear (R4W4). However, it displayed a concerning level of cytotoxicity; eliciting a human embryonic …
The Antioxidant And Antimicrobial Activities Of Cornsilk Extract Encapsulated In Polysaccharide Nanoparticles, Maryam Mady
The Antioxidant And Antimicrobial Activities Of Cornsilk Extract Encapsulated In Polysaccharide Nanoparticles, Maryam Mady
Theses and Dissertations
Corn silk possess antibacterial and antioxidant activities due to its phenolic compounds but they are of low bioavailability that requires some innovative techniques to develop such active ingredients in a safe and less toxic manner. Accordingly, silk extract SE was encapsulated in chitosan nanoparticles CS NPs, which is a natural and abundant polymer derived from chitin. Among 15 experimental trials via design expert software, the optimum formula of SE x\CS NPs was prepared at 800 rpm, 5hrs. on magnetic stirrer, and by CS: TPP ratio was 2.5:1. Then SEM showed the majority of particles size diameter in the range of …