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Distribution of Silica-Coated Silver/Gold Nanostars in Soft- and Hardwood Applying SERS-Based Imaging.

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Title: Distribution of Silica-Coated Silver/Gold Nanostars in Soft- and Hardwood Applying SERS-Based Imaging.
Authors: Geers, C.1, Rodríguez-Lorenzo, L.1, Peña, M. I. Placencia2, Brodard, P.3, Volkmer, T.2, Rothen-Rutishauser, B.1, Petri-Fink, A.1,4 alke.fink@unifr.ch
Source: Macromolecules. Dec2015, Vol. 48 Issue 23, p274-283. 10p.
Subjects: Silica analysis, Surface coatings, Silver nanoparticles, Hardwoods, SERS spectroscopy, Suspensions (Chemistry)
Abstract: Nanoparticles (NPs) in aqueous suspension have just begun to be exploited for the preservative treatment of wood. However, at present, there is very little information available on the distribution of NPs in wood after impregnation, due to associated analytical challenges. In this study, we present the detection of model NPs in softwood and hardwood by surface-enhanced Raman spectroscopy (SERS). SERS is a highly sensitive analytical method requiring no fluorescent labeling. The NP distribution after impregnation is evaluated with one representative species of the two wood types. To show the feasibility of the method, we prepared SERS-active Au/Ag nanostars coated with silica to act as a model NP system. We show herein that NPs can be imaged in very low quantities in both wood types without any matrix interactions. The presence of the NPs in the wood was confirmed by scanning electron microscopy (SEM) imaging and energy dispersive X-ray analysis (EDX). The fast detection of NPs in a complex matrix, without complicated sample preparation, marks a huge step forward in the development and application of nanotechnology for wood preservation and the quest to optimize the properties of one of the world's most important raw materials. [ABSTRACT FROM AUTHOR]
Copyright of Macromolecules is the property of American Chemical Society and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
Database: Engineering Source
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DbLabel: Engineering Source
An: 113340880
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PubTypeId: academicJournal
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  Data: Distribution of Silica-Coated Silver/Gold Nanostars in Soft- and Hardwood Applying SERS-Based Imaging.
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  Data: <searchLink fieldCode="AR" term="%22Geers%2C+C%2E%22">Geers, C.</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Rodríguez-Lorenzo%2C+L%2E%22">Rodríguez-Lorenzo, L.</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Peña%2C+M%2E+I%2E+Placencia%22">Peña, M. I. Placencia</searchLink><relatesTo>2</relatesTo><br /><searchLink fieldCode="AR" term="%22Brodard%2C+P%2E%22">Brodard, P.</searchLink><relatesTo>3</relatesTo><br /><searchLink fieldCode="AR" term="%22Volkmer%2C+T%2E%22">Volkmer, T.</searchLink><relatesTo>2</relatesTo><br /><searchLink fieldCode="AR" term="%22Rothen-Rutishauser%2C+B%2E%22">Rothen-Rutishauser, B.</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Petri-Fink%2C+A%2E%22">Petri-Fink, A.</searchLink><relatesTo>1,4</relatesTo><i> alke.fink@unifr.ch</i>
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  Data: <searchLink fieldCode="JN" term="%22Macromolecules%22">Macromolecules</searchLink>. Dec2015, Vol. 48 Issue 23, p274-283. 10p.
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  Data: <searchLink fieldCode="DE" term="%22Silica+analysis%22">Silica analysis</searchLink><br /><searchLink fieldCode="DE" term="%22Surface+coatings%22">Surface coatings</searchLink><br /><searchLink fieldCode="DE" term="%22Silver+nanoparticles%22">Silver nanoparticles</searchLink><br /><searchLink fieldCode="DE" term="%22Hardwoods%22">Hardwoods</searchLink><br /><searchLink fieldCode="DE" term="%22SERS+spectroscopy%22">SERS spectroscopy</searchLink><br /><searchLink fieldCode="DE" term="%22Suspensions+%28Chemistry%29%22">Suspensions (Chemistry)</searchLink>
– Name: Abstract
  Label: Abstract
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  Data: Nanoparticles (NPs) in aqueous suspension have just begun to be exploited for the preservative treatment of wood. However, at present, there is very little information available on the distribution of NPs in wood after impregnation, due to associated analytical challenges. In this study, we present the detection of model NPs in softwood and hardwood by surface-enhanced Raman spectroscopy (SERS). SERS is a highly sensitive analytical method requiring no fluorescent labeling. The NP distribution after impregnation is evaluated with one representative species of the two wood types. To show the feasibility of the method, we prepared SERS-active Au/Ag nanostars coated with silica to act as a model NP system. We show herein that NPs can be imaged in very low quantities in both wood types without any matrix interactions. The presence of the NPs in the wood was confirmed by scanning electron microscopy (SEM) imaging and energy dispersive X-ray analysis (EDX). The fast detection of NPs in a complex matrix, without complicated sample preparation, marks a huge step forward in the development and application of nanotechnology for wood preservation and the quest to optimize the properties of one of the world's most important raw materials. [ABSTRACT FROM AUTHOR]
– Name: AbstractSuppliedCopyright
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  Data: <i>Copyright of Macromolecules is the property of American Chemical Society and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
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RecordInfo BibRecord:
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      – Type: doi
        Value: 10.1021/acs.langmuir.5b03617
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      – Code: eng
        Text: English
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        PageCount: 10
        StartPage: 274
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      – SubjectFull: Silica analysis
        Type: general
      – SubjectFull: Surface coatings
        Type: general
      – SubjectFull: Silver nanoparticles
        Type: general
      – SubjectFull: Hardwoods
        Type: general
      – SubjectFull: SERS spectroscopy
        Type: general
      – SubjectFull: Suspensions (Chemistry)
        Type: general
    Titles:
      – TitleFull: Distribution of Silica-Coated Silver/Gold Nanostars in Soft- and Hardwood Applying SERS-Based Imaging.
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            NameFull: Geers, C.
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              M: 12
              Text: Dec2015
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              Y: 2015
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