{"corpus_id":4789514,"paper_sha":"d6f2ba34e7b14f894b7f86c279e06216ce15a420","doi":"10.1021/la9047227","arxiv_id":"1010.2564","pmid":20337481,"pmcid":null,"mag_id":2012288165,"dblp_id":null,"acl_id":null,"title":"Self-assembly of colloidal particles from evaporating droplets: role of DLVO interactions and proposition of a phase diagram.","year":2010,"publication_date":"2010-03-25","venue":"Langmuir","journal":{"name":"Langmuir : the ACS journal of surfaces and colloids","pages":"\n          7833-42\n        ","volume":"26 11"},"journal_issn":null,"journal_title":null,"publication_types":["JournalArticle"],"pubmed_pub_types":["Journal Article","Research Support, U.S. Gov't, Non-P.H.S."],"s2_fields_of_study":["Physics","Medicine","Materials Science","Chemistry"],"reference_count":64,"citation_count":467,"influential_citation_count":14,"is_open_access":true,"arxiv_categories":["physics.flu-dyn","cond-mat.mes-hall"],"arxiv_license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","arxiv_journal_ref":"Langmuir, Vol 26 (11), pp 7833-7842, 2010","mesh_headings":[{"d":"Colloids","mj":false,"qs":[{"q":"chemistry","mj":true,"ui":"Q000737"}],"ui":"D003102"},{"d":"Finite Element Analysis","mj":false,"ui":"D020342"},{"d":"Hydrogen-Ion Concentration","mj":false,"ui":"D006863"},{"d":"Models, Theoretical","mj":false,"ui":"D008962"}],"chemicals":[{"n":"Colloids","ui":"D003102","reg":"0"}],"comments_corrections":null,"source_flags":5,"s2_open_access_pdf_url":"http://arxiv.org/pdf/1010.2564","s2_open_access_landing_url":"https://www.semanticscholar.org/paper/d6f2ba34e7b14f894b7f86c279e06216ce15a420","s2_open_access_license":null,"s2_open_access_status":"GREEN","pmc_open_access_pdf_url":null,"pmc_open_access_landing_url":null,"pmc_open_access_license":null,"pmc_open_access_status":null,"unpaywall_open_access_pdf_url":null,"unpaywall_open_access_landing_url":null,"unpaywall_open_access_license":null,"unpaywall_open_access_status":null,"abstract":"The shape of deposits obtained from drying drops containing colloidal particles matters for technologies such as inkjet printing, microelectronics, and bioassay manufacturing. In this work, the formation of deposits during the drying of nanoliter drops containing colloidal particles is investigated experimentally with microscopy and profilometry, and theoretically with an in-house finite-element code. The system studied involves aqueous drops containing titania nanoparticles evaporating on a glass substrate. Deposit shapes from spotted drops at different pH values are measured using a laser profilometer. Our results show that the pH of the solution influences the dried deposit pattern, which can be ring-like or more uniform. The transition between these patterns is explained by considering how DLVO interactions such as the electrostatic and van der Waals forces modify the particle deposition process. Also, a phase diagram is proposed to describe how the shape of a colloidal deposit results from the competition among three flow patterns: a radial flow driven by evaporation at the wetting line, a Marangoni recirculating flow driven by surface tension gradients, and the transport of particles toward the substrate driven by DLVO interactions. This phase diagram explains three types of deposits commonly observed experimentally, such as a peripheral ring, a small central bump, or a uniform layer. Simulations and experiments are found in very good agreement.","claims":[{"public_id":"cl_a6db262b1cc53fe898f44eb10f7ac44c","status":"active","text":"A phase diagram is proposed in which deposit shape results from competition among radial evaporation-driven flow, Marangoni recirculating flow, and DLVO-driven particle transport.","confidence":0.95,"contributors":[{"id":1,"public_id":"12632b8b5f","public_label":"Anonymous (12632b8b5f)","roles":["extraction"],"url":"https://sah.borca.ai/u/12632b8b5f"}],"url":"https://sah.borca.ai/claims/cl_a6db262b1cc53fe898f44eb10f7ac44c"},{"public_id":"cl_3a3669263df5f572a52133deba1d758e","status":"active","text":"Simulations and experiments are in very good agreement for the drying of nanoliter drops containing titania nanoparticles on a glass substrate.","confidence":0.92,"contributors":[{"id":1,"public_id":"12632b8b5f","public_label":"Anonymous 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