2017
DOI: 10.1039/c7ra01604b
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A 2D approach to surface-tension-confined fluidics on parylene C

Abstract: Parylene C-based 2D STC fluidics, where pure water and water-based solutions can flow strictly confined by differences in surface energy.

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Cited by 9 publications
(5 citation statements)
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“…The two treatments were overlapped in order to evaluate the effects of each single treatment. As previously demonstrated [50], the etching effect of oxygen plasma treatment on polymeric substrates induces a structure with nanosized thread-like features with a relatively high roughness. The lower the dimensions of asperities (roughness), compared to the dimensions of air bubbles in water, the less likely these air bubbles remain trapped among the asperities, thus the wider the contact surface/water and the more favored the water absorption.…”
Section: Methodsmentioning
confidence: 60%
See 1 more Smart Citation
“…The two treatments were overlapped in order to evaluate the effects of each single treatment. As previously demonstrated [50], the etching effect of oxygen plasma treatment on polymeric substrates induces a structure with nanosized thread-like features with a relatively high roughness. The lower the dimensions of asperities (roughness), compared to the dimensions of air bubbles in water, the less likely these air bubbles remain trapped among the asperities, thus the wider the contact surface/water and the more favored the water absorption.…”
Section: Methodsmentioning
confidence: 60%
“…Furthermore, parylene was also designated as a suitable surface platform for evaluating the accumulation of microorganisms in a long-term period. Since previous articles in literature reported the surface functionalization of parylene by physico/chemical treatments [19,50,51], besides the pristine parylene-C (pC) coating deposited by CVD, surface-treated pC was taken into account: in particular, two surface treatments were adopted based on oxygen plasma etching and UV/ozonization.…”
Section: Introductionmentioning
confidence: 99%
“…The PDMS coating was used both in the neat form and mixed with a powder of a fluoropolymer, that is, poly-vinylidene fluoride (PVDF), to combine the conformality of the elastomer and the hydrophobic character of the fluoropolymer, which was expected to confer higher chemical inertness and water repellence to the coating. 23,24 Furthermore, since previous articles in literature reported the surface functionalization or decoration of parylene by physico/chemical treatments, [25][26][27] besides the pristine pC coating deposited by CVD, a new combination was taken into account: the pC surface was decorated with PVDF nanoparticles (NPs) through sonication in methyl-ether-ketone (MEK) solvent. Sonication is a well-known method for decorating a substrate with NPs, 27,28 but to the best of our knowledge, there are no previous works related to decoration of organic (polymeric) surfaces with PVDF NPs.…”
Section: Introductionmentioning
confidence: 99%
“…Furthermore, since previous articles in literature reported the surface functionalization or decoration of parylene by physico/chemical treatments, 25 27 besides the pristine pC coating deposited by CVD, a new combination was taken into account: the pC surface was decorated with PVDF nanoparticles (NPs) through sonication in methyl-ether-ketone (MEK) solvent. Sonication is a well-known method for decorating a substrate with NPs, 27,28 but to the best of our knowledge, there are no previous works related to decoration of organic (polymeric) surfaces with PVDF NPs.…”
Section: Introductionmentioning
confidence: 99%
“…14,15 Owing to difficulties to integrate valves and pumps on open microuidics, capillary force, temperature gradient and Laplace pressure caused by drop size have been utilized to actuate the liquids. [16][17][18][19] However, functions like valves that are fully perform complex demanding like actuation on demand are still less explored.…”
Section: -12mentioning
confidence: 99%