Skip to main content

Research Repository

See what's under the surface

Liquid marble interaction gate for collision-based computing

Draper, Thomas; Fullarton, Claire; de Lacy Costello, Ben; Phillips, Neil; Adamatzky, Andrew

Authors

Thomas Draper Tom.Draper@uwe.ac.uk
Research Associate in Chemistry and Unconventional Computing

Claire Fullarton Claire.Fullarton@uwe.ac.uk
Research Associate in Chemistry anf Material Sciences (Liquid Marbles)

Profile Image

Dr Neil Phillips Neil.Phillips@uwe.ac.uk
Research Associate in CWCR (ENDOWS Drought)



Abstract

© 2017 Elsevier Ltd Liquid marbles are microliter droplets of liquid, encapsulated by self-organized hydrophobic particles at the liquid/air interface. They offer an efficient approach for manipulating liquid droplets and compartmentalizing reactions in droplets. Digital fluidic devices employing liquid marbles might benefit from having embedded computing circuits without electronics and moving mechanical parts (apart from the marbles). We present an experimental implementation of a collision gate with liquid marbles. Mechanics of the gate follows principles of Margolus’ soft-sphere collision gate. Boolean values of the inputs are given by the absence (FALSE) or presence (TRUE) of a liquid marble. There are three outputs: two outputs are trajectories of undisturbed marbles (they only report TRUE when just one marble is present at one of the inputs), one output is represented by trajectories of colliding marbles (when two marbles collide they lose their horizontal momentum and fall), this output reports TRUE only when two marbles are present at inputs. Thus the gate implements AND and AND-NOT logical functions. We speculate that by merging trajectories representing AND-NOT output into a single channel one can produce a one-bit half-adder. Potential design of a one-bit full-adder is discussed, and the synthesis of both a pure nickel metal and a hybrid nickel/polymer liquid marble is reported.

Journal Article Type Article
Publication Date Dec 1, 2017
Journal Materials Today
Print ISSN 1369-7021
Electronic ISSN 1873-4103
Publisher Elsevier
Peer Reviewed Peer Reviewed
Volume 20
Issue 10
Pages 561-568
APA6 Citation de Lacy Costello, B. P., Draper, T. C., Draper, T., Fullarton, C., Phillips, N., de Lacy Costello, B., & Adamatzky, A. (2017). Liquid marble interaction gate for collision-based computing. Materials Today, 20(10), 561-568. https://doi.org/10.1016/j.mattod.2017.09.004
DOI https://doi.org/10.1016/j.mattod.2017.09.004
Keywords liquid marble, unconventional computing, collision computing, adder, logic gate, microfluidic
Publisher URL http://dx.doi.org/10.1016/j.mattod.2017.09.004

Files







You might also like



Downloadable Citations