Gas‐sensor fabrication by a layer‐by‐layer technique using polydiacetylene

Kim, Minhee; Shin, Young Jae; Shin, Min Jae; Shin, Jae Sup

doi:10.1002/app.44997

Cited by 11 publications

(6 citation statements)

References 39 publications

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“…Therefore, almost reported PDA systems have been conducted in water. Our previous studies on PDAs were also conducted with a vesicle system in water . During the time we designed the PDA studies, we had difficulty because the target compounds were not soluble in water.…”

Section: Introductionmentioning

confidence: 99%

Effect of ethanol on the color transition of the polydiacetylene vesicle of 10,12‐pentacosadiynoic acid for butylamine detection

Shin

2019

J of Applied Polymer Sci

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In this study, we estimated the color-transition behavior of a polydiacetylene (PDA) vesicle system for butylamine detection in an EtOH-water mixed solvent. The effect of the EtOH concentration in the vesicle system on the color transition of PDA was measured. 10,12-Pentacosadiynoic acid (PCDA) was used to form the PDA vesicle by sonication and photopolymerization. The results show that the vesicle formation of PCDA was accomplished with up to 13 wt % EtOH. As the concentration of EtOH increased from pure water (0 wt %) to 13 wt %, a larger size vesicle was formed, with the color transition occurring at a lower temperature and with a lower amount of butylamine. The color of the PDA vesicle solution started to change at 3 mM butylamine with pure water as the solvent and at 2.5 mM butylamine with 10 wt % EtOH.

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Section: Introductionmentioning

confidence: 99%

Effect of ethanol on the color transition of the polydiacetylene vesicle of 10,12‐pentacosadiynoic acid for butylamine detection

Shin

2019

J of Applied Polymer Sci

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“…Polydiacetylene (PDA) vesicle is formed by the sonication of an amphiphilic diacetylene compound, following ultraviolet (UV) irradiation. The polymerized vesicles formed in this way are generally blue and change to red when a stimulus is applied . The stimuli for example, thermal, Pb 2+ , hydrocarbon, casein, mechanical force, warfare gas, Zn 2+ , salmonella, water, virus, organic acid, albumin, bacteria, and prostate cancer have been reported.…”

Section: Introductionmentioning

confidence: 99%

Chromatic detection of glucose using polymerization of diacetylene vesicle

Kim

Shin

Hwang

et al. 2018

J of Applied Polymer Sci

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A polydiacetylene vesicle was used to fabricate glucose sensor, allowing feasible colorimetric detection. The vesicle was formed by sonication of 10,12‐pentacosadiynoic acid (PCDA). H2O2 formed by the reaction between glucose and glucose oxidase functioned as the initiator for the polymerization of PCDA in the presence of horseradish peroxidase. The solution turned blue after the polymerization of PCDA vesicle. Thus, the glucose concentration could be detected to the concentration level that turns the solution to blue. The ultraviolet absorbance of glucose solution was proportional to glucose concentration. The results of this study indicate that glucose concentration upto 1 mM can be detected by change in blue color by eyes. © 2018 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2018, 135, 46394.

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“…Effects of liquid-type additives such as PFA, HMDS, or MWCNT/PFA hybrid additives for the improvement of the sound absorption properties of flexible PUF have not yet been reported. Recent studies of PUF with MWCNT composites [5,27] suggested that a small amount of MWCNTs in the polyurethane matrix may yield copious bubble nucleation by reducing the critical activation energy for nucleation. As a result, the MWCNT particles effectively reduced the cell size of the PUF, decreasing the thermal conductivity of the PUF.…”

Section: Introductionmentioning

confidence: 99%

Effects of multiwall carbon nanotube and perfluoroalkane additives on the sound absorption properties of flexible polyurethane foams

Ryu

Kim

et al. 2017

Polymer Composites

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The sound absorption properties and airflow resistivity of polyurethane foams (PUFs) with multiwall carbon nanotube (MWCNT), perfluoroalkane (PFA), dimethylsiloxane (HMDS), and MWCNT/PFA hybrid additives were investigated with varying additive content. The results show the close relationship of the sound absorption coefficient and airflow resistivity, and increasing flow resistivity was found to improve the sound absorption coefficient of the PUF. For the PUF with MWCNT (at 0.50 phr)/PFA (at 1.25 phr) hybrid additives, the sound absorption coefficient and airflow resistivity were 0.80 (in the frequency range of 1,600–2,500 Hz) and 439,900 Ns/m4, respectively, which were the highest values among the investigated additive species and additive content. The sound absorption coefficient of the PUF with MWCNT (at 0.50 phr)/PFA (at 1.25 phr) was increased by 82.0% compared to that of the PUF without additives, probably because the PUF has the smallest cell size among the additive species and compositions investigated in this study. The results of the sound absorption coefficient, airflow resistivity, and cell size of the PUF suggest that to decrease the cell size and to increase the tortuous paths of the foams, MWCNT/PFA hybrid additives appeared to be the most effective additives and showed synergistic effects in the formation of PUF, and its small cell size increased the sound absorption properties of PUF. POLYM. COMPOS., 39:E1087–E1098, 2018. © 2017 Society of Plastics Engineers

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Gas‐sensor fabrication by a layer‐by‐layer technique using polydiacetylene

Cited by 11 publications

References 39 publications

Effect of ethanol on the color transition of the polydiacetylene vesicle of 10,12‐pentacosadiynoic acid for butylamine detection

Effect of ethanol on the color transition of the polydiacetylene vesicle of 10,12‐pentacosadiynoic acid for butylamine detection

Chromatic detection of glucose using polymerization of diacetylene vesicle

Effects of multiwall carbon nanotube and perfluoroalkane additives on the sound absorption properties of flexible polyurethane foams

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