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dc.contributor.authorDutta Choudhury, M
dc.contributor.authorDas, S
dc.contributor.authorRoy, B
dc.contributor.authorSengupta, S
dc.contributor.authorTarafdar, S
dc.contributor.authorKarmakar, S
dc.date.accessioned2019-07-18T07:53:28Z
dc.date.issued2019-07-15
dc.description.abstractA simple colloidal drop generally forms ring like patterns after drying. The deposition morphology of the dried drop changes significantly when such a drop dries in the vicinity of another similar drop. Here we present an observational study and statistical analysis of the patterns formed inside an isolated as well as interacting drops of gelatin containing sodium sulfate (Na2SO4). In all the cases, multiple concentric regions of solute particles combined with the polymer gel appear as the drops dry up. Needle crystals of sulfur and coacervates of salt and gelatin are visible in some regions. The outer region becomes non-uniform, so does the size distribution of the needle crystals and coacervates. The non-uniformity increases with proximity of the drops. Here we propose a novel mechanism of growing patterns inside the single drop during drying and correlate that with the results obtained for interacting drops. This study and the proposed mechanism provide insights into the future studies of drying drops under different physical conditions. Further we explore the statistical characteristics of the single and interacting drops using the field emission scanning electron microscopy (FESEM) images. Next, we report fractal and image texture analyses along with object shape statistics of the drop FESEM images, under various experimental conditions. Several statistical hypothesis tests have been carried out to identify the most significant features.en_GB
dc.description.sponsorshipSERB, Indiaen_GB
dc.description.sponsorshipGovt. of Indiaen_GB
dc.identifier.citationPublished online 15 July 2019en_GB
dc.identifier.doi10.1016/j.ces.2019.07.037
dc.identifier.grantnumberPDF/2016/001151/PMSen_GB
dc.identifier.grantnumberSR/S2/CMP-127/2012en_GB
dc.identifier.urihttp://hdl.handle.net/10871/38008
dc.language.isoenen_GB
dc.publisherElsevieren_GB
dc.rights.embargoreasonUnder embargo until 15 July 2020 in compliance with publisher policy.en_GB
dc.rights© 2019. This version is made available under the CC-BY-NC-ND 4.0 license: https://creativecommons.org/licenses/by-nc-nd/4.0/  en_GB
dc.subjectdrop-dryingen_GB
dc.subjectpattern formationen_GB
dc.subjectcrystal growthen_GB
dc.subjectinteracting dropsen_GB
dc.subjectFESEM featuresen_GB
dc.subjectfractal analysisen_GB
dc.subjectimage texture analysisen_GB
dc.titleSalt Crystal Growth in Interacting Drops of a Complex Biopolymer: Statistical Characterization Using FESEM Imagesen_GB
dc.typeArticleen_GB
dc.date.available2019-07-18T07:53:28Z
dc.identifier.issn1873-4405
dc.descriptionThis is the author accepted manuscript. The final version is available from Elsevier via the DOI in this record.  en_GB
dc.identifier.journalChemical Engineering Scienceen_GB
dc.rights.urihttps://creativecommons.org/licenses/by-nc-nd/4.0/ en_GB
dcterms.dateAccepted2019-07-14
rioxxterms.versionAMen_GB
rioxxterms.licenseref.startdate2019-07-15
rioxxterms.typeJournal Article/Reviewen_GB
refterms.dateFCD2019-07-18T07:49:16Z
refterms.versionFCDAM
refterms.panelBen_GB


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© 2019. This version is made available under the CC-BY-NC-ND 4.0 license: https://creativecommons.org/licenses/by-nc-nd/4.0/  
Except where otherwise noted, this item's licence is described as © 2019. This version is made available under the CC-BY-NC-ND 4.0 license: https://creativecommons.org/licenses/by-nc-nd/4.0/