There are many infectious diseases that may be biofilm mediated, medical device-mediated or from some other agent, are now becoming life-threatening. Despite of availability of many antimicrobial agents, new drugs or therapeutics, these infections have continued to be a global health challenge. Nowadays, conventional antimicrobial agents have failed against many infections due to the emergence of multiple drug-resistant strains. Even, if there is a therapeutic efficacy of these drugs, there inappropriate amounts are resulting in an adequate therapeutic index, local and systematic side effects, including irritation, reduction in gut flora and other manifestations. To overcome such situations, nanostructures have exclusive physicochemical properties as they are ultra small, their size can be controlled, greater surface area to mass ratio, high reactivity and functionalizable structure. Encapsulation of antimicrobial drugs in these nanoparticle systems helps in reducing many side effects. It also helps in the sustained release of drug for a larger time period. Several metal and metal oxide nanoparticles such as silver, gold, zinc, etc. have shown a promising antimicrobial activity. Liposomes, polymeric nanoparticles, dendrimers, and solid lipid nanoparticles have achieved great success as efficient antimicrobial drug delivery systems. These nanoparticles use multiple biological pathways to exert their antimicrobial mechanism such as cell wall disruption, inhibition of RNA synthesis, protein synthesis, etc. Moreover,these preparations of nanoparticles are more cost-effective than that of antibiotic synthesis with lesser or no side effects.
Objective: The objective for new methodology was to develop a rapid analytical method for drug quantification in ointment samples and eliminate the usage of hazardous solvents in the sample and standard preparation, less elution time of component of interest to sustained green chemistry applications.Methods: Headspace (HS) chromatography was used along with gas chromatography (GC) having direct sample treatment with the help of calibration slope method.Results: All essential oil (EO) was well separated from each other and eluted 1.6 times faster from traditional classical GC method. The present method does not require any hazardous solvents for sample preparation.
Conclusion:This method provides the accurate and precise results for EO added in ointment samples and can be used for routine quality control testing before releasing the final product release for the consumers.
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