Zobrazeno 1 - 10
of 51
pro vyhledávání: '"Rodrigo Ledesma‐Aguilar"'
Autor:
Glen McHale, Andrew Alderson, Steven Armstrong, Shruti Mandhani, Mahya Meyari, Gary G. Wells, Emma Carter, Rodrigo Ledesma‐Aguilar, Ciro Semprebon, Kenneth E. Evans
Publikováno v:
Small Structures, Vol 5, Iss 4, Pp n/a-n/a (2024)
Superhydrophobic materials are often inspired by nature, whereas metamaterials are engineered to have properties not usually occurring naturally. In both, the key to their unique properties is structure. Here, it is shown that a negative Poisson's ra
Externí odkaz:
https://doaj.org/article/53e06d1c9ce84742aa3d781b3f032ef8
Autor:
Andrew M. J. Edwards, Élfego Ruiz-Gutiérrez, Michael I. Newton, Glen McHale, Gary G. Wells, Rodrigo Ledesma-Aguilar, Carl V. Brown
Publikováno v:
Scientific Reports, Vol 11, Iss 1, Pp 1-13 (2021)
Abstract The breakup of a slender filament of liquid driven by surface tension is a classical fluid dynamics stability problem that is important in many situations where fine droplets are required. When the filament is resting on a flat solid surface
Externí odkaz:
https://doaj.org/article/4224cf7382594b87b9fa5f942205cf35
Autor:
Gary G. Wells, Élfego Ruiz-Gutiérrez, Youen Le Lirzin, Anthony Nourry, Bethany V. Orme, Marc Pradas, Rodrigo Ledesma-Aguilar
Publikováno v:
Nature Communications, Vol 9, Iss 1, Pp 1-7 (2018)
Droplet evaporation control has applications in inkjet printing and surface patterning. Here, the authors show that on slippery curved substrates droplets evaporate by slowly retracting and then suddenly snapping, which can be exploited to design sur
Externí odkaz:
https://doaj.org/article/265626bb08224be298dc8941060f0936
Autor:
Prashant Agrawal, Anthony Buchoux, Gary G. Wells, Rodrigo Ledesma-Aguilar, Anthony J. Walton, Jonathan G. Terry, Glen McHale, Khellil Sefiane, Adam A. Stokes
Publikováno v:
Agrawal, P, Buchoux, A, Wells, G, Ledesma Aguilar, R, Walton, A J, Terry, J G, McHale, G, Sefiane, K & Stokes, A A 2023, ' Transition boiling bubble powered micro-engine using a Leidenfrost bearing ', Applied Thermal Engineering, vol. 229, 120565 . https://doi.org/10.1016/j.applthermaleng.2023.120565
Overcoming friction while generating useful torque is a challenge for micro engines. Here we report the development of a microscale engine that utilizes transition boiling as a mode of propulsion and the Leidenfrost effect as a friction-less bearing.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::6d53536f813ec6d89d0972a71b3185f2
https://hdl.handle.net/20.500.11820/08ebb741-dd5d-4259-bab5-b6dbd57604ef
https://hdl.handle.net/20.500.11820/08ebb741-dd5d-4259-bab5-b6dbd57604ef
Publikováno v:
McHale, G, Afify, N, Armstrong, S, Wells, G & Ledesma Aguilar, R 2022, ' The Liquid Young’s Law on SLIPS: Liquid-Liquid Interfacial Tensions and Zisman Plots ', Langmuir, vol. 38, no. 32, pp. 10032-10042 . https://doi.org/10.1021/acs.langmuir.2c01470
Slippery liquid-infused porous surfaces (SLIPS) are an innovation that reduces droplet-solid contact line pinning and interfacial friction. Recently, it has been shown that a liquid analogue of Young's law can be deduced for the apparent contact angl
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::171d04b0570b2de4546c930aaa33689d
https://doi.org/10.1021/acs.langmuir.2c01470
https://doi.org/10.1021/acs.langmuir.2c01470
Autor:
Alex Jenkins, Gary G. Wells, Rodrigo Ledesma-Aguilar, Daniel Orejon, Steven Armstrong, Glen McHale
Publikováno v:
Jenkins, A, Wells, G G, Ledesma-Aguilar, R, Orejon, D, Armstrong, S & Mchale, G 2023, ' Suppression of crystallization in saline drop evaporation on pinning-free surfaces ', The Journal of Chemical Physics, vol. 158, no. 12, 124708 . https://doi.org/10.1063/5.0139448
For sessile droplets of pure liquid on a surface, evaporation depends on surface wettability, the surrounding environment, contact angle hysteresis, and surface roughness. For non-pure liquids, the evaporation characteristics are further complicated
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::31f0d842adf44dda5089c1ef582011cc
https://doi.org/10.1063/5.0139448
https://doi.org/10.1063/5.0139448
Autor:
Frances Dawson, Wen C. Yew, Bethany Orme, Christopher Markwell, Rodrigo Ledesma-Aguilar, Justin J. Perry, Ian M. Shortman, Darren Smith, Hamdi Torun, Gary Wells, Matthew G. Unthank
A versatile method for the creation of multitier hierarchical structured surfaces is reported, which optimizes both antiviral and hydrophobic (easy-clean) properties. The methodology exploits the availability of surface-active chemical groups while a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::1770e3d750497e55ddb8829028cf69f4
https://nrl.northumbria.ac.uk/id/eprint/49781/16/acs.langmuir.2c01579.pdf
https://nrl.northumbria.ac.uk/id/eprint/49781/16/acs.langmuir.2c01579.pdf
Autor:
Rodrigo Ledesma-Aguilar, Hernán Barrio-Zhang, Élfego Ruiz-Gutiérrez, Gary G. Wells, Glen McHale, Steven Armstrong
Publikováno v:
Ledesma Aguilar, R, McHale, G, Armstrong, S, Wells, G, Barrio-Zhang, H & Ruiz Gutiérrez, É 2020, ' Contact-Angle Hysteresis and Contact-Line Friction on Slippery Liquid-Like Surfaces ', Langmuir, vol. 36, no. 49, pp. 15094–15101 . https://doi.org/10.1021/acs.langmuir.0c02668
Langmuir
Langmuir
Contact-line pinning and dynamic friction are fundamental forces that oppose the motion of droplets on solid surfaces. Everyday experience suggests that if a solid surface offers low contact-line pinning, it will also impart a relatively low dynamic
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::fb03e2d5699d374a5a226834125eb103
https://doi.org/10.1021/acs.langmuir.0c02668
https://doi.org/10.1021/acs.langmuir.0c02668
Autor:
Élfego Ruiz-Gutiérrez, Steven Armstrong, Simon Lévêque, Célestin Michel, Ignacio Pagonabarraga, Gary G. Wells, Aurora Hernández-Machado, Rodrigo Ledesma-Aguilar
Publikováno v:
Ruiz Gutierrez, E, Armstrong, S, Leveque, S, Michel, C, Pagonabarraga, I, Wells, G, Hernández-Machado, A & Ledesma Aguilar, R 2022, ' The long cross-over dynamics of capillary imbibition ', Journal of Fluid Mechanics, vol. 939, A39 . https://doi.org/10.1017/jfm.2022.248
Spontaneous capillary imbibition is a classical problem in interfacial fluid dynamics with a broad range of applications, from microfluidics to agriculture. Here we study the duration of the cross-over between an initial linear growth of the imbibiti
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::797653367f5d204728da8dbf8dbd0d82
https://hdl.handle.net/20.500.11820/8bcc68ea-5510-46a7-85a2-68b8f40abc08
https://hdl.handle.net/20.500.11820/8bcc68ea-5510-46a7-85a2-68b8f40abc08
Publikováno v:
McHale, G, Gao, N, Wells, G, Barrio-Zhang, H & Ledesma Aguilar, R 2022, ' Friction Coefficients for Droplets on Solids: The Liquid-Solid Amontons’ Laws ', Langmuir, vol. 38, no. 14, pp. 4425-4433 . https://doi.org/10.1021/acs.langmuir.2c00178
The empirical laws of dry friction between two solid bodies date back to the work of Amontons in 1699 and are pre-dated by the work of Leonardo da Vinci. Fundamental to those laws are the concepts of static and kinetic coefficients of friction relati
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::7a9f0deba3bfb8d9758f915aa96bbe9f
https://pubmed.ncbi.nlm.nih.gov/35353534
https://pubmed.ncbi.nlm.nih.gov/35353534