Metal and metal oxide nanoparticles capped with dipicolinic acid (DPA) represent a novel class of nanocides with considerable potential across multiple domains which ensure their distinct qualities and uses. The synthesis techniques used to create these nanoparticles, emphasize how important DPA is for maintaining and improving the stability of metal and metal oxide nanoparticles. The features that enable DPA-capped nanoparticles to effectively combat various diseases and contaminants are discussed, with particular attention paid to their structural, chemical, and physical qualities. The adaptability of DPA-based nanocides in treating cancer, preventing bacterial infections, and reducing environmental pollution is studied in the application section. Their potential to specifically target and establish cells makes a very intriguing use in medical and ecological cleanup settings. The article also discusses how employing DPA-capped nanoparticles may affect the environment, highlighting the necessity of carefully evaluating their toxicity and biodegradability to guarantee sustainable and safe procedures. The scope and prospects for DPA-based nanocides are finally explored, highlighting existing issues and possible directions for further study and advancement. The swift progress in nanotechnology and materials science implies that DPA-capped nanoparticles will persist in developing, providing inventive resolutions to urgent worldwide health and environmental concerns. In light of this, the abstract emphasizes how crucial it is to continue studying to fully grasp the potential of DPA-based nanocides in influencing medical and environmental protection in the future.