>
Hawkins: Gun-Free Military Installations Make U.S. Troops Sitting Ducks
BLOCKCHAIN TO ENSURE 'ETHICAL PROVENANCE OF GOLD', PROTECT MINERS HEALTH
The Campaign To Lie America Into World War II
Near Term Laser Space Propulsion to Move Twenty Times Faster in the Solar System
2nd Largest Insurance Firm, Swiss Re, Classifies 5G as a "High Impact" Liability Risk...
Man Claims an Inexpensive Medicine for Dogs that Kills Worms and Parasites Cured His Cancer
Roborace's first ever driverless hillclimb
China gene-edited baby experiment 'may have created unintended mutations'
Why The Future Needs Us Humans
British Virgin Islands Announce US Dollar-Backed Digital Currency
Batman-style device restrains criminals by shooting a tether around their body so officers...
World's first car that can fly and drive 'with a top speed of 200mph in the air and 100mph..
Scientists Discover Molecule That Triggers Self-Destruction of Pancreatic Cancer Cells
Bio-inspired Quorum Sensing in robots fabricated from DNA origami can communicate by transmitting and receiving diffusing chemical signals. The mechanism has features such as programmable response thresholds and quorum quenching, and is capable of being triggered by proximity of a specific target cell. Nanoscale robots with swarm intelligence could carry out tasks that have been so far unachievable in diverse fields such as industry, manufacturing and medicine.
Quorum Sensing (QS) is a well-studied example of collective behavior. See the 2013 TED Talk below on Bacterial quorum sensing chemical communication. This mechanism of cell-cell communication in bacteria utilizes secreted signal molecules to coordinate the behavior of the group. Linking signal concentration to local population density enables each single bacterium to measure population size. This ability to communicate both within and between species is critical for bacterial survival and interaction in natural habitats and has likely appeared early in evolution. Detection of a minimal threshold of signal molecules, termed autoinducers, triggers gene expression and subsequent behavior response. Using these signaling systems, bacteria synchronize particular behaviors on a population-wide scale and thus function as multicellular organisms.
QS-inspired approaches have been adopted in artificial systems, including mobile robots and wireless sensor networks, and naturally occurring genes have been harnessed in synthetic biology to implement QS at the cellular level.