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You searched for: Subject "microfluidic technology" Remove constraint Subject: "microfluidic technology" Publication Year 2018 Remove constraint Publication Year: 2018 Subject liquids Remove constraint Subject: liquids
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1. Capillary Scale Admittance and Conductance Detection

Author:
Huang, Weixiong; Chouhan, Bikash; Dasgupta, Purnendu K.
Source:
Analytical chemistry 2018 v.90 no.24 pp. 14561-14568
ISSN:
1520-6882
Subject:
microfluidic technology,   etc   ; B-lymphocytes; electrodes; geometry; ion exchange chromatography; liquids;     Show all 6 Subjects
Abstract:
... Admittance detection, more commonly called capacitively coupled contactless conductivity detection, is widely used. While the true conductance of a solution is linear with concentration up to ∼1 mequiv/L, the admittance signal is nonlinear. In small-bore capillaries and highly resistive solutions, such as in suppressed open tubular ion chromatography (SOTIC), the admittance signal is exponentially ...
DOI:
10.1021/acs.analchem.8b04561

2. Transient binding promotes molecule penetration into mucin hydrogels by enhancing molecular partitioning

Author:
MarczynskiEqual contribution., Matthias; Käsdorf, Benjamin T.; Altaner, Bernhard; Wenzler, Andreas; Gerland, Ulrich; Lieleg, Oliver
Source:
Biomaterials science 2018 v.6 no.12 pp. 3373-3387
ISSN:
2047-4849
Subject:
microfluidic technology,   etc   ; biopolymers; equations; hydrogels; liquids; models; mucins; mucus;     Show all 8 Subjects
Abstract:
... Here, we present a microfluidics chip platform which allows for studying the charge-dependent transport of molecules across the interface of acidic mucin gels. With this setup, we demonstrate a selective accumulation of molecules at the liquid/gel interface of mucin hydrogels that occurs as a function of the molecule charge: this phenomenon is strongly pronounced for cationic molecules, weakly pro ...
DOI:
10.1039/c8bm00664d

3. Dielectrowetting: The past, present and future

Author:
Edwards, A.M.J.; Brown, C.V.; Newton, M.I.; McHale, G.
Source:
Current opinion in colloid & interface science 2018 v.36 pp. 28-36
ISSN:
1359-0294
Subject:
microfluidic technology,   etc   ; dielectrophoresis; droplets; electric field; electric potential difference; electrodes; energy balance; liquids; statics;     Show all 9 Subjects
Abstract:
... Liquid dielectrophoresis is a bulk force acting on dipoles within a dielectric liquid inside a non-uniform electric field. When the driving electrodes are interdigitated, bulk liquid dielectrophoresis is converted to an interface-localised form capable of modifying the energy balance at an interface. When the interface is a solid-liquid one, the wetting properties of a surface are modified and thi ...
DOI:
10.1016/j.cocis.2017.11.005

4. Liquid metals: fundamentals and applications in chemistry

Author:
Daeneke, T.; Khoshmanesh, K.; Mahmood, N.; de Castro, I. A.; Esrafilzadeh, D.; Barrow, S. J.; Dickey, M. D.; Kalantar-zadeh, K.
Source:
Chemical Society reviews 2018 v.47 no.11 pp. 4073-4111
ISSN:
1460-4744
Subject:
microfluidic technology,   etc   ; alloys; ambient temperature; catalytic activity; drugs; electronics; liquids; melting point; physical chemistry;     Show all 9 Subjects
Abstract:
... Post-transition elements, together with zinc-group metals and their alloys belong to an emerging class of materials with fascinating characteristics originating from their simultaneous metallic and liquid natures. These metals and alloys are characterised by having low melting points (i.e. between room temperature and 300 °C), making their liquid state accessible to practical applications in vario ...
DOI:
10.1039/c7cs00043j

5. Effect of lubricant viscosity on the self-healing properties and electrically driven sliding of droplets on anisotropic slippery surfaces

Author:
Wang, Zubin; Heng, Liping; Jiang, Lei
Source:
Journal of materials chemistry 2018 v.6 no.8 pp. 3414-3421
ISSN:
2050-7496
Subject:
microfluidic technology,   etc   ; Nepenthes; anisotropy; droplets; electric potential difference; liquids; lubricants; microchip technology; oils; silicone; viscosity;     Show all 11 Subjects
Abstract:
... The emerging slippery liquid-infused porous surfaces inspired by Nepenthes pitcher plants have attracted considerable attention because of their excellent self-cleaning properties and potential applications in novel microfluidics, microchips, and liquid transportation and liquid manipulation technologies. However, the development of anisotropic slippery surfaces is in its infancy. Although some in ...
DOI:
10.1039/c7ta10439a

6. Patterning Bubbles by the Stick–Slip Motion of the Advancing Triple Phase Line on Nanostructures

Author:
Zhou, Haihua; Huang, Zhandong; Cai, Zheren; Zhang, Rui; Wang, Haiyan; Song, Yanlin; Reichmanis, Elsa
Source:
Langmuir 2018 v.34 no.51 pp. 15804-15811
ISSN:
1520-5827
Subject:
microfluidic technology,   etc   ; air; aluminum oxide; bubbles; coatings; droplets; emulsions; finite element analysis; hydrogen bonding; hydrophobicity; liquids; nanomaterials;     Show all 12 Subjects
Abstract:
... The stick–slip motion of the triple phase contact line (TCL) has wide applications in inkjet printing, surface coatings, functional material assembly, and device fabrication. Here, for the first time, we report that on an alumina substrate with nanostructures, the stick–slip motion of the advancing TCL during spreading of an emulsion droplet can serve as an effective nanopatterning process. Air en ...
DOI:
10.1021/acs.langmuir.8b03135

7. Patterning and Reversible Actuation of Liquid Gallium Alloys by Preventing Adhesion on Rough Surfaces

Author:
Joshipura, Ishan D.; Ayers, Hudson R.; Castillo, Gilbert A.; Ladd, Collin; Tabor, Christopher E.; Adams, Jacob J.; Dickey, Michael D.
Source:
ACS applied materials & interfaces 2018 v.10 no.51 pp. 44686-44695
ISSN:
1944-8252
Subject:
microfluidic technology,   etc   ; acids; adhesion; air; alloys; chemical bases; coatings; electrodes; electronics; energy; gallium; hydrophilicity; hydrophobicity; liquids; metrology; nanoparticles; roughness; silica; silicone; spectroscopy; surface roughness; surface tension; topography;     Show all 23 Subjects
Abstract:
... This work reports a simple approach to form, study, and utilize rough coatings that prevent the adhesion of gallium-based liquid metal alloys. Typically, liquids with large interfacial tension do not wet nonreactive surfaces, regardless of surface topography. However, these alloys form a surface oxide “skin” that adheres to many substrates, even those with low surface energy. This work reports a s ...
DOI:
10.1021/acsami.8b13099

8. Cryoprotectant-Free Freezing of Cells Using Liquid Marbles Filled with Hydrogel

Author:
Vadivelu, Raja; Kashaninejad, Navid; Sreejith, Kamalalayam Rajan; Bhattacharjee, Ripon; Cock, Ian; Nguyen, Nam-Trung
Source:
ACS applied materials & interfaces 2018 v.10 no.50 pp. 43439-43449
ISSN:
1944-8252
Subject:
microfluidic technology,   etc   ; agarose; cell adhesion; cell culture; cell viability; cryopreservation; cryoprotectants; fetal bovine serum; freeze-thaw cycles; freezing; hydrogels; liquids; materials science; mice; toxicity;     Show all 15 Subjects
Abstract:
... Cryopreservation without cryoprotectant remains a significant challenge for the re-establishment of cell culture after freeze–thaw. Thus, finding an alternative and a simple cryopreservation method is necessary. Liquid marble (LM)-based digital microfluidics is a promising approach for cryoprotectant-free cryopreservation. However, the use of this platform to efficiently preserve samples with low ...
DOI:
10.1021/acsami.8b16236

9. THz Spectroscopy for a Rapid and Label-Free Cell Viability Assay in a Microfluidic Chip Based on an Optical Clearing Agent

Author:
Yang, Ke; Yang, Xiang; Zhao, Xiang; Lamy de la Chapelle, Marc; Fu, Weiling
Source:
Analytical chemistry 2018 v.91 no.1 pp. 785-791
ISSN:
1520-6882
Subject:
microfluidic technology,   etc   ; absorption; antineoplastic agents; biomedical research; breast neoplasms; cell viability; cytotoxicity; liquids; neoplasm cells; oils; organ-on-a-chip; screening; spectroscopy; toxicology; viability assays;     Show all 15 Subjects
Abstract:
... Simple, rapid, and efficient cell viability assays play a fundamental role in much of biomedical research, including cell toxicology investigations and antitumor drug screening. Here, we demonstrate for the first time a rapid and label-free cell viability assay using THz spectroscopy in combination with a new optical clearing agent (OCA) and microfluidic technology. This strategy uses a considerab ...
DOI:
10.1021/acs.analchem.8b03665

10. Automated 4-sample protein immunoassays using 3D-printed microfluidics

Author:
Kadimisetty, Karteek; Spak, Andrew P.; Bhalerao, Ketki S.; Sharafeldin, Mohamed; Mosa, Islam M.; Lee, Norman H.; Rusling, James F.
Source:
Analytical methods 2018 v.10 no.32 pp. 4000-4006
ISSN:
1759-9679
Subject:
microfluidic technology,   etc   ; Internet; analytical methods; automation; blood serum; carbon nanotubes; detection limit; diagnostic techniques; enzyme-linked immunosorbent assay; graphene; liquids; nanoparticles; prostate-specific antigen; proteins; rapid methods;     Show all 15 Subjects
Abstract:
... Low cost, miniaturized assay platforms that work with small sample volumes, high sensitivity and rapid detection will have high value in future biomolecular diagnostics. Herein we report an automated, 3D printed electrochemiluminescent (ECL) immunoarray integrated with a nanostructured pyrolytic graphite sheet (PGS) microwell chip configured to detect 2 proteins simultaneously from complex liquid ...
DOI:
10.1039/c8ay01271g

11. Porous micropillar structures for retaining low surface tension liquids

Author:
Agonafer, Damena D.; Lee, Hyoungsoon; Vasquez, Pablo A.; Won, Yoonjin; Jung, Ki Wook; Lingamneni, Srilakshmi; Ma, Binjian; Shan, Li; Shuai, Shuai; Du, Zichen; Maitra, Tanmoy; Palko, James W.; Goodson, Kenneth E.
Source:
Journal of colloid and interface science 2018 v.514 pp. 316-327
ISSN:
0021-9797
Subject:
microfluidic technology,   etc   ; Gibbs free energy; anisotropy; capillarity; deformation; geometry; heat exchangers; liquids; mathematical models; prediction; silicon; surface tension; theoretical models; viscosity;     Show all 14 Subjects
Abstract:
... The ability to manipulate fluid interfaces, e.g., to retain liquid behind or within porous structures, can be beneficial in multiple applications, including microfluidics, biochemical analysis, and the thermal management of electronic systems. While there are a variety of strategies for controlling the disposition of liquid water via capillarity, such as the use of chemically modified porous adhes ...
DOI:
10.1016/j.jcis.2017.12.011

12. A high-throughput microtissue platform to probe endothelial function in vitro

Author:
Crampton, Alexandra L.; Cummins, Katherine A.; Wood, David K.
Source:
Integrative biology 2018 v.10 no.9 pp. 555-565
ISSN:
1757-9708
Subject:
microfluidic technology,   etc   ; automation; basement membrane; blood; cell culture; collagen; droplets; endothelial cells; endothelium; equipment; extracellular matrix; image analysis; liquids; permeability; solutes; tight junctions; transforming growth factor beta; tumor necrosis factor-alpha;     Show all 18 Subjects
Abstract:
... A critical role of vascular endothelium is as a semi-permeable barrier, dynamically regulating the flux of solutes between blood and the surrounding tissue. Existing platforms that quantify endothelial function in vitro are either significantly throughput limited or overlook physiologically relevant extracellular matrix (ECM) interactions and thus do not recapitulate in vivo function. Leveraging d ...
DOI:
10.1039/c8ib00111a