# Summary of #hplusroadmap IRC Log (April 8, 2009)

• A technique for creating microfluidics using standard PCB methods was discussed, where copper traces act as a negative for a PDMS mold, offering a low-cost approach to microfluidic device fabrication.

• Researchers shared papers on laser-driven micropumps for blood, including a method using 808nm lasers (potentially from CD burners) that can create temperature rises of "100 million celsius/sec for about 2-3 microseconds" to drive fluid flow without valves.

• Discussion of cell lysis techniques included "Reagentless mechanical cell lysis by nanoscale barbs in microchannels" and "Diode laser generated ultrasound for human blood cell lysis" which uses LED-induced ultrasonic cavitation bubbles.

• A conceptual discussion explored the physics of computation in dynamical systems, referencing statistical complexity and computational mechanics as frameworks for understanding how physical systems with memory and dynamics can perform computation.

• Participants shared a TED talk about bacterial communication systems, with subsequent discussion about swarm intelligence and the challenges of measuring intelligence in emergent systems.

• A DIYbio FAQ was being updated, indicating ongoing documentation efforts within the DIYbio community.