Published Paper Details:

Modern technological advancements have accelerated the development of miniaturized and portable analytical devices, enabling on-site, real-time, and decentralized chemical analysis. Traditional laboratory instruments, although highly accurate and sensitive, are often bulky, expensive, and require skilled personnel. Portable analytical devices overcome these limitations through miniaturization of components, integration of microfluidics, smartphone- assisted detection, point-of-care diagnostics, and the use of nanomaterials. These devices allow rapid screening of chemicals in environmental monitoring, food safety, forensic investigations, pharmaceuticals, toxicology, and biomedical diagnostics. The increasing demand for low-cost, fast, and user-friendly analytical solutions has driven innovations in lab-on-a-chip (LOC), paper-based microfluidics, portable spectrometers, electrochemical sensors, and handheld chromatographic systems. This review provides an extensive overview of the types, working principles, fabrication methods, influencing factors, advantages, limitations, and future prospects of miniaturized analytical systems.