PMID- 29359941 OWN - NLM STAT- PubMed-not-MEDLINE DCOM- 20180508 LR - 20180508 IS - 1520-5827 (Electronic) IS - 0743-7463 (Linking) VI - 34 IP - 7 DP - 2018 Feb 20 TI - Evaporation, Lifetime, and Robustness Studies of Liquid Marbles for Collision-Based Computing. PG - 2573-2580 LID - 10.1021/acs.langmuir.7b04196 [doi] AB - Liquid marbles (LMs) have recently attracted interest for use as cargo carriers in digital microfluidics and have successfully been implemented as signal carriers in collision-based unconventional computing circuits. Both application domains require LMs to roll over substantial distances and to survive a certain number of collisions without degrading. To evaluate the lifetime of LMs being subjected to movement and impact stresses, we have selected four types of coating to investigate: polytetrafluoroethylene (PTFE), ultrahigh density polyethylene (PE), Ni, and a mixture of Ni with PE (Ni-PE). Hierarchies of robustness have been constructed which showed that pure PE LMs survived the longest when stationary and in motion. Pure PTFE LMs were shown to be the least resilient to multiple impacts. The PTFE coating provided minimal protection against evaporative losses for small LM volumes (2 and 5 muL) however, larger LMs (10 muL) were shown to have good evaporative stabilities when stationary. Conversely, PE LMs showed a remarkable ability to withstand multiple impacts and were also stable when considering just passive evaporation. Hybrid Ni-PE LMs exhibited more resilience to multiple impacts compared to Ni LMs. Thus, when designing LM devices, it is paramount to determine impact pathways and select appropriate coating materials. FAU - Fullarton, Claire AU - Fullarton C AD - Unconventional Computing Laboratory, double daggerInstitute of Biosensing Technology, Centre for Research in Biosciences, University of the West of England , Coldharbour Lane, Bristol BS16 1QY, U.K. FAU - Draper, Thomas C AU - Draper TC AD - Unconventional Computing Laboratory, double daggerInstitute of Biosensing Technology, Centre for Research in Biosciences, University of the West of England , Coldharbour Lane, Bristol BS16 1QY, U.K. FAU - Phillips, Neil AU - Phillips N AD - Unconventional Computing Laboratory, double daggerInstitute of Biosensing Technology, Centre for Research in Biosciences, University of the West of England , Coldharbour Lane, Bristol BS16 1QY, U.K. FAU - Mayne, Richard AU - Mayne R AUID- ORCID: 0000-0003-1915-4993 AD - Unconventional Computing Laboratory, double daggerInstitute of Biosensing Technology, Centre for Research in Biosciences, University of the West of England , Coldharbour Lane, Bristol BS16 1QY, U.K. FAU - de Lacy Costello, Ben P J AU - de Lacy Costello BPJ AD - Unconventional Computing Laboratory, double daggerInstitute of Biosensing Technology, Centre for Research in Biosciences, University of the West of England , Coldharbour Lane, Bristol BS16 1QY, U.K. FAU - Adamatzky, Andrew AU - Adamatzky A AUID- ORCID: 0000-0003-1073-2662 AD - Unconventional Computing Laboratory, double daggerInstitute of Biosensing Technology, Centre for Research in Biosciences, University of the West of England , Coldharbour Lane, Bristol BS16 1QY, U.K. LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20180206 PL - United States TA - Langmuir JT - Langmuir : the ACS journal of surfaces and colloids JID - 9882736 EDAT- 2018/01/24 06:00 MHDA- 2018/01/24 06:01 CRDT- 2018/01/24 06:00 PHST- 2018/01/24 06:00 [pubmed] PHST- 2018/01/24 06:01 [medline] PHST- 2018/01/24 06:00 [entrez] AID - 10.1021/acs.langmuir.7b04196 [doi] PST - ppublish SO - Langmuir. 2018 Feb 20;34(7):2573-2580. doi: 10.1021/acs.langmuir.7b04196. Epub 2018 Feb 6.