{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,10,10]],"date-time":"2025-10-10T21:35:51Z","timestamp":1760132151484,"version":"3.41.2"},"reference-count":35,"publisher":"AIP Publishing","issue":"10","content-domain":{"domain":["pubs.aip.org"],"crossmark-restriction":true},"short-container-title":[],"published-print":{"date-parts":[[2011,3,14]]},"abstract":"<jats:p>We investigate the effect of distinct bonding energies on the onset of criticality of low functionality fluid mixtures. We focus on mixtures of particles with two and three patches as this includes the mixture where \u201cempty\u201d fluids were originally reported. In addition to the number of patches, the species differ in the type of patches or bonding sites. For simplicity, we consider that the patches on each species are identical: one species has three patches of type A and the other has two patches of type B. We have found a rich phase behavior with closed miscibility gaps, liquid\u2013liquid demixing, and negative azeotropes. Liquid\u2013liquid demixing was found to pre-empt the \u201cempty\u201d fluid regime, of these mixtures, when the AB bonds are weaker than the AA or BB bonds. By contrast, mixtures in this class exhibit \u201cempty\u201d fluid behavior when the AB bonds are stronger than at least one of the other two. Mixtures with bonding energies \u03b5BB = \u03b5AB and \u03b5AA &amp;lt; \u03b5BB, were found to exhibit an unusual negative azeotrope.<\/jats:p>","DOI":"10.1063\/1.3561396","type":"journal-article","created":{"date-parts":[[2011,3,15]],"date-time":"2011-03-15T17:19:48Z","timestamp":1300209588000},"update-policy":"https:\/\/doi.org\/10.1063\/aip-crossmark-policy-page","source":"Crossref","is-referenced-by-count":43,"title":["Phase diagrams of binary mixtures of patchy colloids with distinct numbers and types of patches: The empty fluid regime"],"prefix":"10.1063","volume":"134","author":[{"given":"Daniel de las","family":"Heras","sequence":"first","affiliation":[{"name":"Centro de F\u00edsica Te\u00f3rica e Computacional da Universidade de Lisboa 1 , Avenida Professor Gama Pinto 2, P-1749-016, Lisbon, Portugal"}]},{"given":"Jos\u00e9 Maria","family":"Tavares","sequence":"additional","affiliation":[{"name":"Centro de F\u00edsica Te\u00f3rica e Computacional da Universidade de Lisboa 1 , Avenida Professor Gama Pinto 2, P-1749-016, Lisbon, Portugal"},{"name":"Instituto Superior de Engenharia de Lisboa 2 , Rua Conselheiro Em\u00edidio Navarro, P-1590-062, Lisbon, Portugal , and , Avenida Professor Gama Pinto 2, P-1749-016, Lisbon, Portugal"},{"name":"Centro de F\u00edsica Te\u00f3rica e Computacional da Universidade de Lisboa 2 , Rua Conselheiro Em\u00edidio Navarro, P-1590-062, Lisbon, Portugal , and , Avenida Professor Gama Pinto 2, P-1749-016, Lisbon, Portugal"}]},{"given":"Margarida M. Telo","family":"da Gama","sequence":"additional","affiliation":[{"name":"Centro de F\u00edsica Te\u00f3rica e Computacional da Universidade de Lisboa 1 , Avenida Professor Gama Pinto 2, P-1749-016, Lisbon, Portugal"},{"name":"Facultade de Ci\u00eancias da Universidade de Lisboa 3 Departamento de F\u00edsica, , Campo Grande, P-1749-016, Lisbon, Portugal"}]}],"member":"317","published-online":{"date-parts":[[2011,3,11]]},"reference":[{"key":"2023062001172781200_c1","doi-asserted-by":"publisher","first-page":"494202","DOI":"10.1088\/0953-8984\/20\/49\/494202","volume":"20","year":"2008","journal-title":"J. Phys. Condens. Matter"},{"key":"2023062001172781200_c2","doi-asserted-by":"publisher","first-page":"323101","DOI":"10.1088\/0953-8984\/19\/32\/323101","volume":"19","year":"2007","journal-title":"J. Phys. Condens. 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