1. The article discusses the development of 3D printing techniques for creating interconnected microchannels with embedded electronics, enhancing the efficiency and versatility of microfluidic systems. 2. It highlights the challenges faced in traditional microfluidic fabrication methods and how 3D printing, particularly using photopolymerisation and extrusion-based methods, addresses these issues. 3. The research by the Singapore University of Technology and Design showcases the integration of electronic components into microchannels during the printing process, using gradually curing resins and liquid metal to facilitate the self-assembly of conductive wires.