Drop coating deposition of a liposome suspension on surfaces with different wettabilities: ´coffee ring´formation and suspension preconcentration

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F67985882%3A_____%2F17%3A00484869" target="_blank" >RIV/67985882:_____/17:00484869 - isvavai.cz</a>

Alternative codes found

RIV/00216208:11320/17:10368232

Result on the web

<a href="http://dx.doi.org/10.1039/c6cp07606h" target="_blank" >http://dx.doi.org/10.1039/c6cp07606h</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1039/c6cp07606h" target="_blank" >10.1039/c6cp07606h</a>

Result language

angličtina

Original language name

Drop coating deposition of a liposome suspension on surfaces with different wettabilities: ´coffee ring´formation and suspension preconcentration

Original language description

Evaporation of a drop of biomolecular solution on a solid surface typically creates a ring-shaped drying pattern, formed by the so-called ´coffee ring´effect. The size and shape of the ´coffee ring´pattern is strongly dependent on the properties of the surface as well as on the deposited molecular solution or suspension. In this paper, we tested six types of surfaces differing in their physico-chemical surface characteristics (contact angles, wettability and roughness) as well as in the presence or absence of a base metal layer. The tested surfaces include two fluorocarbon coated metallic surfaces (commercial SpectRIM (TM) from Tienta Sciences, Inc. based on a smoothed stainless steel and non-commercial aluminium surface), three silanized glass surfaces and polished CaF2. The results showed that the formation of a ´coffee ring´was influenced by surface wettability as well as by lipid concentration in the drop. Drop coating deposition Raman (DCDR) spectroscopy was used to compare the ability of the tested surfaces to preconcentrate molecules in the ring and therefore improve detection sensitivity. It was shown that surfaces with a contact angle of 90 degrees and higher produce smaller drying patterns than more hydrophilic surfaces. In these drying patterns, the model liposomes were more efficiently preconcentrated, which resulted in a higher Raman signal of the liposomes. The applicability of surfaces with static contact angles less than 90 degrees, high water contact angle hysteresis and no metal layer (silanized glass, CaF2) is limited to samples with high liposome concentrations

Czech name

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Czech description

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Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

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OECD FORD branch

10610 - Biophysics

Project

<a href="/en/project/GBP205%2F12%2FG118" target="_blank" >GBP205/12/G118: Nanobiophotonics for future health care</a><br>

Continuities

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year

2017

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Physical Chemistry Chemical Physics

ISSN

1463-9076

e-ISSN

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Volume of the periodical

19

Issue of the periodical within the volume

1

Country of publishing house

GB - UNITED KINGDOM

Number of pages

6

Pages from-to

388-393

UT code for WoS article

000391725300041

EID of the result in the Scopus database

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