Revolutionizing Leishmaniasis Treatment with Cutting Edge Drug Delivery Systems and Nanovaccines: An Updated Review.

Leishmaniasis, one of the most overlooked tropical diseases, is a life-threatening illness caused by the parasite Leishmania donovani that is prevalent in underdeveloped nations. Over 350 million individuals in more than 90 different nations worldwide are at risk of contracting the disease, which has a current fatality rate of 50 000 mortalities each year. The administration of liposomal Amp B, pentavalent antimonials, and miltefosine are still considered integral components of the chemotherapy regimen. Antileishmanial medications fail to treat leishmaniasis because of their numerous drawbacks. These include inadequate effectiveness, toxicity, undesired side effects, drug resistance, treatment duration, and cost. Consequently, there is a need to overcome the limitations of conventional therapeutics. Nanotechnology has demonstrated promising outcomes in addressing these issues because of its small size and distinctive characteristics, such as enhanced bioavailability, lower toxicity, biodegradability, and targeted drug delivery. This review is an effort to highlight the recent progress in various nanodrug delivery systems (nDDSs) over the past five years for treating leishmaniasis. Although the preclinical outcomes of nDDSs have shown promising treatment for leishmaniasis, further research is needed for their clinical translation. Advancement in three primary priority domains─molecular diagnostics, clinical investigation, and knowledge dissemination and standardization─is imperative to propel the leishmaniasis field toward translational outcomes.

Raman spectroscopy for the determination of forensically important bio-fluids.

Body fluid (blood, sperm, saliva, and vaginal secretions) trace evidence acquired from crime scenes is increasingly being used by scientists for phenotypic profiling and DNA analysis to identify the source of the body fluid. Chemical tests, which are costly, time-consuming, and require pre-sample preparation, were used heavily by scientists in the past. Furthermore, each test is limited to a single sample. Raman spectroscopy (RS) is a universal technique for analyzing various substances as it measures backscatter. The Portable RS is now commonly utilized at crime scenes. It is quick and requires no sample preparation. The biological samples can also be used for prospective analysis because the procedure is non-destructive. Because of its extremely selective nature, it can also examine heterogeneous samples and separate each ingredient. Different bodily fluids have distinct Raman spectra. A stain that contains multiple body fluids could produce a superposition of all the peaks that can be mathematically resolved into separate fundamental spectra. In this review, we focused on the use of RS in the identification and characterisation of bodily fluids at crime scenes. Also, this review emphasized the merits of choosing RS over other conventional methods.