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Unravelling the Aco...
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Ghorbani, MortezaKTH,Medicinsk avbildning,Sabanci Univ, Fac Engn & Nat Sci, Mechatron Engn Program, TR-34956 Istanbul, Turkey,KTH Royal Institute of Technology, Sweden; Sabanci University, Turkey
(författare)
Unravelling the Acoustic and Thermal Responses of Perfluorocarbon Liquid Droplets Stabilized with Cellulose Nanofibers
- Artikel/kapitelEngelska2019
Förlag, utgivningsår, omfång ...
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2019-09-24
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American Chemical Society,2019
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printrdacarrier
Nummerbeteckningar
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LIBRIS-ID:oai:DiVA.org:ri-40537
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https://urn.kb.se/resolve?urn=urn:nbn:se:ri:diva-40537URI
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https://doi.org/10.1021/acs.langmuir.9b02132DOI
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https://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-259753URI
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Språk:engelska
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Sammanfattning på:engelska
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Ämneskategori:ref swepub-contenttype
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Ämneskategori:art swepub-publicationtype
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Funding details: Kungliga Tekniska Högskolan, KTH; Funding text 1: A.J.S. would like to acknowledge the KTH starting grant for financial support.
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QC 20190917. QC 20191028
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The attractive colloidal and physicochemical properties of cellulose nanofibers (CNFs) at interfaces have recently been exploited in the facile production of a number of environmentally benign materials, e.g. foams, emulsions, and capsules. Herein, these unique properties are exploited in a new type of CNF-stabilized perfluoropentane droplets produced via a straightforward and simple mixing protocol. Droplets with a comparatively narrow size distribution (ca. 1-5 μm in diameter) were fabricated, and their potential in the acoustic droplet vaporization process was evaluated. For this, the particle-stabilized droplets were assessed in three independent experimental examinations, namely temperature, acoustic, and ultrasonic standing wave tests. During the acoustic droplet vaporization (ADV) process, droplets were converted to gas-filled microbubbles, offering enhanced visualization by ultrasound. The acoustic pressure threshold of about 0.62 MPa was identified for the cellulose-stabilized droplets. A phase transition temperature of about 22 °C was observed, at which a significant fraction of larger droplets (above ca. 3 μm in diameter) were converted into bubbles, whereas a large part of the population of smaller droplets were stable up to higher temperatures (temperatures up to 45 °C tested). Moreover, under ultrasound standing wave conditions, droplets were relocated to antinodes demonstrating the behavior associated with the negative contrast particles. The combined results make the CNF-stabilized droplets interesting in cell-droplet interaction experiments and ultrasound imaging.
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Biuppslag (personer, institutioner, konferenser, titlar ...)
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Olofsson, KarlKTH,Tillämpad fysik,KTH Royal Institute of Technology, Sweden(Swepub:kth)u1ujrzjf
(författare)
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Benjamins, Jan-WillemRISE,Yta, process och formulering,Research Institute of Sweden (RISE), Chemistry, Materials and Surfaces, Box 5607, SE-114 86 Stockholm, Sweden(Swepub:ri)JanWillemBe@ri.se
(författare)
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Loskutova, KseniaKTH,Medicinsk avbildning,KTH Royal Institute of Technology, Sweden(Swepub:kth)u17y2vbb
(författare)
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Paulraj, ThomasKTH,Polymera material,KTH Royal Institute of Technology, Sweden(Swepub:kth)u13jlnd1
(författare)
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Wiklund, MartinKTH,Biomedicinsk fysik och röntgenfysik(Swepub:kth)u1rillco
(författare)
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Grishenkov, Dmitry,Associate Professor,1983-KTH,Medicinsk avbildning,KTH Royal Institute of Technology, Sweden(Swepub:kth)u1b9avjc
(författare)
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Svagan, Anna JustinaKTH,Fiber- och polymerteknologi,KTH Royal Institute of Technology, Sweden(Swepub:kth)u1hz2inh
(författare)
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KTHMedicinsk avbildning
(creator_code:org_t)
Sammanhörande titlar
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Ingår i:Langmuir: American Chemical Society35:40, s. 13090-130990743-74631520-5827
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