Modification of polycarbonate with hydrophilic/hydrophobic coatings for the fabrication of microdevices

Jang, Minjeong; Park, Chan Kyung; Lee, Nae Yoon

doi:10.1016/j.snb.2013.11.121

Cited by 33 publications

(14 citation statements)

References 33 publications

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“…Considerable research studies have been carried out to examine the hydrophobic characteristics of PC surfaces. The modification of PC with hydrophilic/hydrophobic coatings for the fabrication of microdevices was studied by Jang et al . They demonstrated that with the hydrophilic treatment of PC, microchannels could be produced; these were resistant to organic solvents.…”

Section: Introductionmentioning

confidence: 99%

Solvent‐induced crystallization of a polycarbonate surface and texture copying by polydimethylsiloxane for improved surface hydrophobicity

Yilbaş

Ali

Al-Aqeeli

et al. 2016

J of Applied Polymer Sci

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The influence of the immersion period on the crystallization of polycarbonate (PC) was investigated, and the resulting texture configurations of the crystal structures were reconstructed with polydimethylsiloxane (PDMS). Analytical tools, including optical microscopy, scanning electron microscopy, atomic force microscopy, X-ray diffraction, the sessile drop technique, Fourier transform infrared spectroscopy, microtribometry, and ultraviolet-visible spectrophotometry, were used to characterize crystallized PC and PDMS surfaces. We found that the crystallized PC surface possessed microsize/nanosize spherulites, voids, and fibrils, and the increasing immersion period increased the texture height and spherulite concentration at the surface. The residual stress in the crystallized PC wafer was compressive, and it was on the order of 230 MPa. The friction coefficient of the crystallized PC surface remained lower than that of the as-received PC wafer, and the increase in the immersion period lowered the friction coefficient. The crystallized PC surface demonstrated superhydrophobic characteristics, and the maximum contact angle occurred with 6 min of immersion. The PDMS exactly reconstructed the texture of the crystallized PC surface, except those of the nanofibrils and subnanofibrils. The droplet contact angle attained a higher values for the PDMS replicated surfaces than for those corresponding to the crystallized PC wafer.

show abstract

Section: Introductionmentioning

confidence: 99%

Solvent‐induced crystallization of a polycarbonate surface and texture copying by polydimethylsiloxane for improved surface hydrophobicity

Yilbaş

Ali

Al-Aqeeli

et al. 2016

J of Applied Polymer Sci

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show abstract

“…2A). This result demonstrated that modification with bis-TPA makes the PC surface hydrophilic (Jang, Park, & Lee, 2014). After treatment with 5% bis-TPA, the PC surface was further treated with various concentrations (1%, 3%, 5%, 10%, and 15%) of FTES in ethanol, and the resulting water contact angles were shown in Fig.…”

Section: Resultsmentioning

confidence: 75%

“…1C). In this way, the PCePC assembly was realized under relatively mild conditions, i.e., using a lower temperature and pressure than typically applied in thermal bonding (Jang, Park, & Lee, 2014;Ogo nczyk, Wegrzyn, Jankowski, Dabrowski, & Garstecki, 2010). After assembly, the microchannel was further treated with an ethanolic solution of FTES at room temperature for 1 h (Fig.…”

Section: Microdevice Design and Fabricationmentioning

confidence: 99%

“…After assembly, the microchannel was further treated with an ethanolic solution of FTES at room temperature for 1 h (Fig. 1D) (Jang, Park, & Lee, 2014). To examine the optimum condition for hydrophobic modification of the surface, the concentration of FTES were varied (1%, 3%, 5%, 10%, and 15%) (Jia, Fang, & Fang, 2004;Matinlinna, Areva, Lassila, & Vallittu, 2004).…”

Section: Microdevice Design and Fabricationmentioning

confidence: 99%

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Miniaturized polymerase chain reaction device for rapid identification of genetically modified organisms

Lee

2015

Food Control

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“…Recently, the formation of urethane bonds, which involve the donation of a lone pair of electrons in an amine functional group to a carbonate group, has been widely adopted for facile, room temperature surface modification of plastics, particularly with PC [2,[24][25][26][27][28][29]. 3-(Aminopropyl)triethoxysilane (APTES) is commonly used to enable the formation of urethane bonds with PC.…”

Section: Introductionmentioning

confidence: 99%

One-step glass-like coating of polycarbonate for seamless DNA purification and amplification on an integrated monolithic microdevice

Zhang

Yoo

Lee

2014

Sensors and Actuators B: Chemical

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Modification of polycarbonate with hydrophilic/hydrophobic coatings for the fabrication of microdevices

Cited by 33 publications

References 33 publications

Solvent‐induced crystallization of a polycarbonate surface and texture copying by polydimethylsiloxane for improved surface hydrophobicity

Solvent‐induced crystallization of a polycarbonate surface and texture copying by polydimethylsiloxane for improved surface hydrophobicity

Miniaturized polymerase chain reaction device for rapid identification of genetically modified organisms

One-step glass-like coating of polycarbonate for seamless DNA purification and amplification on an integrated monolithic microdevice

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