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231226s2023 xx |||||o 00| ||eng c |
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|a 10.1021/acs.langmuir.3c01017
|2 doi
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|a eng
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|a Miyagawa, Akihisa
|e verfasserin
|4 aut
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| 245 |
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|a Pore Size Dependence of Mass Transfer of Zinc Myoglobin in a Single Mesoporous Silica Particle
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|c 2023
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|a Text
|b txt
|2 rdacontent
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|a ƒaComputermedien
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|2 rdamedia
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|a ƒa Online-Ressource
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|2 rdacarrier
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|a Date Revised 15.08.2023
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|a published: Print-Electronic
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|a Citation Status PubMed-not-MEDLINE
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|a This study investigated the pore size dependence of the mass transfer of zinc myoglobin (ZnMb) in a single mesoporous silica particle through confocal fluorescence microspectroscopy. The ZnMb's fluorescence depth profile in the particle was analyzed by a spherical diffusion model, and the intraparticle diffusion coefficient was obtained. The intraparticle diffusion coefficient in the silica particle with various pore sizes (10, 15, 30, and 50 nm) was furthermore analyzed based on a pore and surface diffusion model. Although the mass transfer mechanism in all silica particles followed the pore and surface diffusion model, the adsorption and desorption of ZnMb affected the mass transfer depending on the pore size. The influence of the slow desorption of ZnMb became pronounced for large pore sizes (30 and 50 nm), which was revealed by simulation using a diffusion equation combined with the adsorption-desorption kinetics. The distribution of ZnMb was suppressed in small pore sizes (10 and 15 nm) owing to the adsorption of ZnMb onto the entrance of the pore. Thus, we revealed the mass transfer mechanism of ZnMb in the silica particle with different pore sizes
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|a Journal Article
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|a Nagatomo, Shigenori
|e verfasserin
|4 aut
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|a Kuno, Hatsuhi
|e verfasserin
|4 aut
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| 700 |
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|a Terada, Takuto
|e verfasserin
|4 aut
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|a Nakatani, Kiyoharu
|e verfasserin
|4 aut
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| 773 |
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|i Enthalten in
|t Langmuir : the ACS journal of surfaces and colloids
|d 1992
|g 39(2023), 32 vom: 15. Aug., Seite 11329-11336
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|x 1520-5827
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|g volume:39
|g year:2023
|g number:32
|g day:15
|g month:08
|g pages:11329-11336
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|u http://dx.doi.org/10.1021/acs.langmuir.3c01017
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