Microfluidic chips are revolutionizing medical diagnostics, drug development, and biological research, enabling precise manipulation of small fluid volumes (nanoliters to microliters) for applications such as gene detection, immunoassays, and point-of-care testing. These chips feature tiny microchannels (typically 10–100 micrometers wide) that require precise sealing to prevent fluid leakage and maintain flow control. They also need to be biocompatible to avoid interfering with biological samples. Traditional assembly methods often damage microchannels or introduce contaminants, making them unsuitable for microfluidic chip manufacturing. DaokeDao plastic laser welding provides a non-contact, low-thermal-impact joining solution that preserves microchannel integrity. The laser energy is precisely focused on the weld joint, avoiding clogging or deformation of microchannels. It achieves high bonding strength and transparency, allowing for real-time observation of fluid flow and sample reactions. The process is free of adhesives and solvents, eliminating the risk of sample contamination and meeting strict biocompatibility standards (such as ISO 10993 and USP Class VI). Our laser systems feature micron-level positioning accuracy, ensuring precise alignment of chip layers and consistent weld quality. They support the mass production of microfluidic chips, helping researchers and manufacturers accelerate the development and commercialization of innovative diagnostic and research tools.
