Advances in molecular methodologies and nanotechnology-enabled drug delivery in biomedicine: An overview of current...

Recent advances in molecular techniques and nanosystems have significantly transformed biomedical research, particularly in pathogen detection and drug delivery. Traditional culture-based methods are being increasingly replaced by rapid and precise molecular approaches, offering greater accuracy in identifying pathogens and uncovering the genetic mechanisms underlying antimicrobial resistance (AMR). This review highlights key molecular tools, including matrix-assisted laser desorption ionization-time-of-flight mass spectrometry (MALDI-TOF MS), whole-genome sequencing, DNA microarrays, metagenomics, and polymerase chain reaction (PCR) and others with a critical evaluation of their strengths, limitations, and applications in global surveillance. Alongside, the integration of nanostructured systems has opened new avenues for designing advanced drug-delivery platforms with improved bioavailability, targeted action, and reduced toxicity. Together, these innovations emphasize the potential of molecular and nanoscale technologies to address pressing challenges in diagnostics, therapeutics, and the management of infectious diseases.