Epitope Imprinted Nanoparticles as Customized Synthetic Antibodies for Biorecognition in Theranostics

As medicine advances towards an era of personalized and targeted therapies, the need for precise and reliable molecular recognition elements becomes increasingly critical. These elements are essential for directing therapeutic agents to specific cells or tissues, thereby maximizing efficacy while minimizing off-target effects. Among the emerging technologies, epitope-imprinted nanoparticles (EINPs) have demonstrated exceptional potential as "synthetic antibodies" for the recognition of biomarkers. These nanoparticles are designed to mimic the binding capabilities of natural antibodies but with enhanced stability, specificity, and ease of production. Unlike traditional antibodies, which can be costly, labile, and prone to significant side effects, EINPs offer a cost-effective, robust, and customizable platform for targeted sensing and therapeutic applications. This Perspective Review explores the design, synthesis, and application of epitope-imprinted nanoparticles, highlighting their advantages and potential to revolutionize the landscape of abiotic molecular recognition in disease detection and targeted therapies. Finally, we present perspectives on foreseeable breakthroughs and advances, offering insights into how molecular imprinting techniques can be expanded to new biomedical fields, such as tissue engineering.