The paper "Recent Developments and Future Perspectives of Microfluidics and Smart Technologies in Wearable Devices" by Sasikala Apoorva, Nam-Trung Nguyen, and Kamalalayam Rajan Sreejith provides an overview of the integration of microfluidics and smart technologies (AI, ML, IoT) into wearable devices for health monitoring. Wearable devices, such as fitness trackers and medical monitors, have gained popularity due to their ability to provide real-time data on health metrics. The integration of microfluidics enhances the accuracy and sensitivity of these devices by enabling the analysis of bodily fluids like sweat, saliva, and urine. The paper discusses the advantages of microfluidic technologies, including low volume, high sensitivity, and rapid processing, and highlights the challenges associated with each type of biofluid. It emphasizes the importance of combining smart technologies with microfluidics to improve diagnosis and therapy. The paper also covers recent applications, trends, and future developments in intelligent microfluidic wearable devices, including the use of PDMS, paper-based microfluidics, and microneedle-based transdermal microfluidics. The analysis of specific biofluids, such as sweat and saliva, is detailed, along with the challenges and potential applications in health monitoring and disease diagnosis. The paper concludes by discussing the need for continued research and development to overcome limitations and expand the capabilities of microfluidic wearable devices.The paper "Recent Developments and Future Perspectives of Microfluidics and Smart Technologies in Wearable Devices" by Sasikala Apoorva, Nam-Trung Nguyen, and Kamalalayam Rajan Sreejith provides an overview of the integration of microfluidics and smart technologies (AI, ML, IoT) into wearable devices for health monitoring. Wearable devices, such as fitness trackers and medical monitors, have gained popularity due to their ability to provide real-time data on health metrics. The integration of microfluidics enhances the accuracy and sensitivity of these devices by enabling the analysis of bodily fluids like sweat, saliva, and urine. The paper discusses the advantages of microfluidic technologies, including low volume, high sensitivity, and rapid processing, and highlights the challenges associated with each type of biofluid. It emphasizes the importance of combining smart technologies with microfluidics to improve diagnosis and therapy. The paper also covers recent applications, trends, and future developments in intelligent microfluidic wearable devices, including the use of PDMS, paper-based microfluidics, and microneedle-based transdermal microfluidics. The analysis of specific biofluids, such as sweat and saliva, is detailed, along with the challenges and potential applications in health monitoring and disease diagnosis. The paper concludes by discussing the need for continued research and development to overcome limitations and expand the capabilities of microfluidic wearable devices.