High-yield aqueous synthesis of multi-branched iron oxide core–gold shell nanoparticles: SERS substrate for immobilization and magnetic separation of bacteria

The high product yield of multi-branched core–shell Fe 3− x O 4 @Au magnetic nanoparticles was synthesized used as magnetic separation platform and surface-enhanced Raman scattering (SERS) substrates. The multi-branched magnetic nanoparticles were prepared by a seed-mediated growth approach using ma...

Ausführliche Beschreibung

Gespeichert in:
Bibliographische Detailangaben
Veröffentlicht in:Journal of nanoparticle research : an interdisciplinary forum for nanoscale science and technology 2014-10, Vol.16 (10), p.1, Article 2624
Hauptverfasser: Tamer, Ugur, Onay, Aykut, Ciftci, Hakan, Bozkurt, Akif Göktuğ, Cetin, Demet, Suludere, Zekiye, Hakkı Boyacı, İsmail, Daniel, Philippe, Lagarde, Fabienne, Yaacoub, Nader, Greneche, Jean-Marc
Format: Artikel
Sprache:eng
Schlagworte:
Online-Zugang:Volltext
Tags: Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
container_end_page
container_issue 10
container_start_page 1
container_title Journal of nanoparticle research : an interdisciplinary forum for nanoscale science and technology
container_volume 16
creator Tamer, Ugur
Onay, Aykut
Ciftci, Hakan
Bozkurt, Akif Göktuğ
Cetin, Demet
Suludere, Zekiye
Hakkı Boyacı, İsmail
Daniel, Philippe
Lagarde, Fabienne
Yaacoub, Nader
Greneche, Jean-Marc
description The high product yield of multi-branched core–shell Fe 3− x O 4 @Au magnetic nanoparticles was synthesized used as magnetic separation platform and surface-enhanced Raman scattering (SERS) substrates. The multi-branched magnetic nanoparticles were prepared by a seed-mediated growth approach using magnetic gold nanospheres as the seeds and subsequent reduction of metal salt with ascorbic acid in the presence of a stabilizing agent chitosan biopolymer and silver ions. The anisotropic growth of nanoparticles was observed in the presence of chitosan polymer matrix resulting in multi-branched nanoparticles with a diameter over 100 nm, and silver ions also play a crucial role on the growth of multi-branched nanoparticles. We propose the mechanism of the formation of multi-branched nanoparticles while the properties of nanoparticles embedded in chitosan matrix are discussed. The surface morphology of nanoparticles was characterized with transmission electron microscopy, scanning electron microscopy, ultraviolet visible spectroscopy (UV–Vis), X-ray diffraction, and fourier transform infrared spectroscopy and 57 Fe Mössbauer spectrometry. Additionally, the magnetic properties of the nanoparticles were also examined. We also demonstrated that the synthesized Fe 3− x O 4 @Au multi-branched nanoparticle is capable of targeted separation of pathogens from matrix and sensing as SERS substrates.
doi_str_mv 10.1007/s11051-014-2624-7
format Article
fullrecord <record><control><sourceid>proquest_hal_p</sourceid><recordid>TN_cdi_hal_primary_oai_HAL_hal_01974827v1</recordid><sourceformat>XML</sourceformat><sourcesystem>PC</sourcesystem><sourcerecordid>3464153081</sourcerecordid><originalsourceid>FETCH-LOGICAL-c380t-e9818a48ef297f298898a592cdfe59223661721119449b9fa7d622710a82b07b3</originalsourceid><addsrcrecordid>eNp1kc-KFDEQxhtRcF19AG8B8eAhmkr35I-3ZVkdYUBwFbyF6u70dJbuzpjqXhxPvoMv4LP5JGboZfFiIFRR-X1fiqqieA7iNQih3xCA2AAXUHGpZMX1g-IMNlpyY9XXhzkvjeFCq-px8YToRghQ0sqz4vc27Ht-DH5oGX5bfFyI0XGae0-BWOzYuAxz4HXCqel9y0KKE4vfQ-tZE5P_8_PXPmYp9X4Y2IRTPGCaQzN4esuurz5dM1pqmhPOnnUxsTCOsQ5D-IFzyEY4tWzE_eSzhJHP2rWe_62xmX0K-LR41OFA_tldPC--vLv6fLnlu4_vP1xe7HhTGjFzbw0YrIzvpNX5GmMNbqxs2s7nIEulQEsAsFVla9uhbpWUGgQaWQtdl-fFq9W3x8EdUhgxHV3E4LYXO3eqCbC6MlLfQmZfrOwhxTwzmt1NXNKU23OgoCztRpYyU7BSTYpEyXf3tiDcaWluXVp2rtxpaU5nzcs7Z6QGh-409kD3QmnyUaXNnFw5yk_T3qd_Oviv-V8H86kx</addsrcrecordid><sourcetype>Open Access Repository</sourcetype><iscdi>true</iscdi><recordtype>article</recordtype><pqid>1613395232</pqid></control><display><type>article</type><title>High-yield aqueous synthesis of multi-branched iron oxide core–gold shell nanoparticles: SERS substrate for immobilization and magnetic separation of bacteria</title><source>Springer Nature - Complete Springer Journals</source><creator>Tamer, Ugur ; Onay, Aykut ; Ciftci, Hakan ; Bozkurt, Akif Göktuğ ; Cetin, Demet ; Suludere, Zekiye ; Hakkı Boyacı, İsmail ; Daniel, Philippe ; Lagarde, Fabienne ; Yaacoub, Nader ; Greneche, Jean-Marc</creator><creatorcontrib>Tamer, Ugur ; Onay, Aykut ; Ciftci, Hakan ; Bozkurt, Akif Göktuğ ; Cetin, Demet ; Suludere, Zekiye ; Hakkı Boyacı, İsmail ; Daniel, Philippe ; Lagarde, Fabienne ; Yaacoub, Nader ; Greneche, Jean-Marc</creatorcontrib><description>The high product yield of multi-branched core–shell Fe 3− x O 4 @Au magnetic nanoparticles was synthesized used as magnetic separation platform and surface-enhanced Raman scattering (SERS) substrates. The multi-branched magnetic nanoparticles were prepared by a seed-mediated growth approach using magnetic gold nanospheres as the seeds and subsequent reduction of metal salt with ascorbic acid in the presence of a stabilizing agent chitosan biopolymer and silver ions. The anisotropic growth of nanoparticles was observed in the presence of chitosan polymer matrix resulting in multi-branched nanoparticles with a diameter over 100 nm, and silver ions also play a crucial role on the growth of multi-branched nanoparticles. We propose the mechanism of the formation of multi-branched nanoparticles while the properties of nanoparticles embedded in chitosan matrix are discussed. The surface morphology of nanoparticles was characterized with transmission electron microscopy, scanning electron microscopy, ultraviolet visible spectroscopy (UV–Vis), X-ray diffraction, and fourier transform infrared spectroscopy and 57 Fe Mössbauer spectrometry. Additionally, the magnetic properties of the nanoparticles were also examined. We also demonstrated that the synthesized Fe 3− x O 4 @Au multi-branched nanoparticle is capable of targeted separation of pathogens from matrix and sensing as SERS substrates.</description><identifier>ISSN: 1388-0764</identifier><identifier>EISSN: 1572-896X</identifier><identifier>DOI: 10.1007/s11051-014-2624-7</identifier><language>eng</language><publisher>Dordrecht: Springer Netherlands</publisher><subject>Biopolymers ; Characterization and Evaluation of Materials ; Chemical Sciences ; Chemistry and Materials Science ; Condensed matter: electronic structure, electrical, magnetic, and optical properties ; Condensed matter: structure, mechanical and thermal properties ; Cross-disciplinary physics: materials science; rheology ; Exact sciences and technology ; Fourier transforms ; Infrared spectroscopy ; Inorganic Chemistry ; Ions ; Iron oxides ; Lasers ; Low-dimensional structures (superlattices, quantum well structures, multilayers): structure, and nonelectronic properties ; Magnetic properties ; Magnetic properties and materials ; Magnetic properties of nanostructures ; Materials Science ; Methods of nanofabrication ; Nanoparticles ; Nanotechnology ; Optical Devices ; Optics ; Photonics ; Physical Chemistry ; Physics ; Polymers ; Research Paper ; Silver ; Small particles and nanoscale materials ; Spectrometry ; Studies of specific magnetic materials ; Surfaces and interfaces; thin films and whiskers (structure and nonelectronic properties) ; X-ray diffraction</subject><ispartof>Journal of nanoparticle research : an interdisciplinary forum for nanoscale science and technology, 2014-10, Vol.16 (10), p.1, Article 2624</ispartof><rights>Springer Science+Business Media Dordrecht 2014</rights><rights>2015 INIST-CNRS</rights><rights>Distributed under a Creative Commons Attribution 4.0 International License</rights><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c380t-e9818a48ef297f298898a592cdfe59223661721119449b9fa7d622710a82b07b3</citedby><cites>FETCH-LOGICAL-c380t-e9818a48ef297f298898a592cdfe59223661721119449b9fa7d622710a82b07b3</cites><orcidid>0000-0003-0292-5253 ; 0000-0002-4015-4376 ; 0000-0002-5583-1165 ; 0000-0001-7309-8633</orcidid></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://link.springer.com/content/pdf/10.1007/s11051-014-2624-7$$EPDF$$P50$$Gspringer$$H</linktopdf><linktohtml>$$Uhttps://link.springer.com/10.1007/s11051-014-2624-7$$EHTML$$P50$$Gspringer$$H</linktohtml><link.rule.ids>230,314,778,782,883,27911,27912,41475,42544,51306</link.rule.ids><backlink>$$Uhttp://pascal-francis.inist.fr/vibad/index.php?action=getRecordDetail&amp;idt=28888639$$DView record in Pascal Francis$$Hfree_for_read</backlink><backlink>$$Uhttps://hal.science/hal-01974827$$DView record in HAL$$Hfree_for_read</backlink></links><search><creatorcontrib>Tamer, Ugur</creatorcontrib><creatorcontrib>Onay, Aykut</creatorcontrib><creatorcontrib>Ciftci, Hakan</creatorcontrib><creatorcontrib>Bozkurt, Akif Göktuğ</creatorcontrib><creatorcontrib>Cetin, Demet</creatorcontrib><creatorcontrib>Suludere, Zekiye</creatorcontrib><creatorcontrib>Hakkı Boyacı, İsmail</creatorcontrib><creatorcontrib>Daniel, Philippe</creatorcontrib><creatorcontrib>Lagarde, Fabienne</creatorcontrib><creatorcontrib>Yaacoub, Nader</creatorcontrib><creatorcontrib>Greneche, Jean-Marc</creatorcontrib><title>High-yield aqueous synthesis of multi-branched iron oxide core–gold shell nanoparticles: SERS substrate for immobilization and magnetic separation of bacteria</title><title>Journal of nanoparticle research : an interdisciplinary forum for nanoscale science and technology</title><addtitle>J Nanopart Res</addtitle><description>The high product yield of multi-branched core–shell Fe 3− x O 4 @Au magnetic nanoparticles was synthesized used as magnetic separation platform and surface-enhanced Raman scattering (SERS) substrates. The multi-branched magnetic nanoparticles were prepared by a seed-mediated growth approach using magnetic gold nanospheres as the seeds and subsequent reduction of metal salt with ascorbic acid in the presence of a stabilizing agent chitosan biopolymer and silver ions. The anisotropic growth of nanoparticles was observed in the presence of chitosan polymer matrix resulting in multi-branched nanoparticles with a diameter over 100 nm, and silver ions also play a crucial role on the growth of multi-branched nanoparticles. We propose the mechanism of the formation of multi-branched nanoparticles while the properties of nanoparticles embedded in chitosan matrix are discussed. The surface morphology of nanoparticles was characterized with transmission electron microscopy, scanning electron microscopy, ultraviolet visible spectroscopy (UV–Vis), X-ray diffraction, and fourier transform infrared spectroscopy and 57 Fe Mössbauer spectrometry. Additionally, the magnetic properties of the nanoparticles were also examined. We also demonstrated that the synthesized Fe 3− x O 4 @Au multi-branched nanoparticle is capable of targeted separation of pathogens from matrix and sensing as SERS substrates.</description><subject>Biopolymers</subject><subject>Characterization and Evaluation of Materials</subject><subject>Chemical Sciences</subject><subject>Chemistry and Materials Science</subject><subject>Condensed matter: electronic structure, electrical, magnetic, and optical properties</subject><subject>Condensed matter: structure, mechanical and thermal properties</subject><subject>Cross-disciplinary physics: materials science; rheology</subject><subject>Exact sciences and technology</subject><subject>Fourier transforms</subject><subject>Infrared spectroscopy</subject><subject>Inorganic Chemistry</subject><subject>Ions</subject><subject>Iron oxides</subject><subject>Lasers</subject><subject>Low-dimensional structures (superlattices, quantum well structures, multilayers): structure, and nonelectronic properties</subject><subject>Magnetic properties</subject><subject>Magnetic properties and materials</subject><subject>Magnetic properties of nanostructures</subject><subject>Materials Science</subject><subject>Methods of nanofabrication</subject><subject>Nanoparticles</subject><subject>Nanotechnology</subject><subject>Optical Devices</subject><subject>Optics</subject><subject>Photonics</subject><subject>Physical Chemistry</subject><subject>Physics</subject><subject>Polymers</subject><subject>Research Paper</subject><subject>Silver</subject><subject>Small particles and nanoscale materials</subject><subject>Spectrometry</subject><subject>Studies of specific magnetic materials</subject><subject>Surfaces and interfaces; thin films and whiskers (structure and nonelectronic properties)</subject><subject>X-ray diffraction</subject><issn>1388-0764</issn><issn>1572-896X</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2014</creationdate><recordtype>article</recordtype><sourceid>ABUWG</sourceid><sourceid>AFKRA</sourceid><sourceid>AZQEC</sourceid><sourceid>BENPR</sourceid><sourceid>CCPQU</sourceid><sourceid>DWQXO</sourceid><sourceid>GNUQQ</sourceid><recordid>eNp1kc-KFDEQxhtRcF19AG8B8eAhmkr35I-3ZVkdYUBwFbyF6u70dJbuzpjqXhxPvoMv4LP5JGboZfFiIFRR-X1fiqqieA7iNQih3xCA2AAXUHGpZMX1g-IMNlpyY9XXhzkvjeFCq-px8YToRghQ0sqz4vc27Ht-DH5oGX5bfFyI0XGae0-BWOzYuAxz4HXCqel9y0KKE4vfQ-tZE5P_8_PXPmYp9X4Y2IRTPGCaQzN4esuurz5dM1pqmhPOnnUxsTCOsQ5D-IFzyEY4tWzE_eSzhJHP2rWe_62xmX0K-LR41OFA_tldPC--vLv6fLnlu4_vP1xe7HhTGjFzbw0YrIzvpNX5GmMNbqxs2s7nIEulQEsAsFVla9uhbpWUGgQaWQtdl-fFq9W3x8EdUhgxHV3E4LYXO3eqCbC6MlLfQmZfrOwhxTwzmt1NXNKU23OgoCztRpYyU7BSTYpEyXf3tiDcaWluXVp2rtxpaU5nzcs7Z6QGh-409kD3QmnyUaXNnFw5yk_T3qd_Oviv-V8H86kx</recordid><startdate>20141001</startdate><enddate>20141001</enddate><creator>Tamer, Ugur</creator><creator>Onay, Aykut</creator><creator>Ciftci, Hakan</creator><creator>Bozkurt, Akif Göktuğ</creator><creator>Cetin, Demet</creator><creator>Suludere, Zekiye</creator><creator>Hakkı Boyacı, İsmail</creator><creator>Daniel, Philippe</creator><creator>Lagarde, Fabienne</creator><creator>Yaacoub, Nader</creator><creator>Greneche, Jean-Marc</creator><general>Springer Netherlands</general><general>Springer</general><general>Springer Nature B.V</general><general>Springer Verlag</general><scope>IQODW</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>3V.</scope><scope>7QO</scope><scope>7SR</scope><scope>7TB</scope><scope>7U5</scope><scope>7U7</scope><scope>7X7</scope><scope>7XB</scope><scope>8AO</scope><scope>8BQ</scope><scope>8FD</scope><scope>8FE</scope><scope>8FG</scope><scope>8FH</scope><scope>8FI</scope><scope>8FJ</scope><scope>8FK</scope><scope>ABJCF</scope><scope>ABUWG</scope><scope>AEUYN</scope><scope>AFKRA</scope><scope>ARAPS</scope><scope>AZQEC</scope><scope>BBNVY</scope><scope>BENPR</scope><scope>BGLVJ</scope><scope>BHPHI</scope><scope>C1K</scope><scope>CCPQU</scope><scope>D1I</scope><scope>DWQXO</scope><scope>F28</scope><scope>FR3</scope><scope>FYUFA</scope><scope>GHDGH</scope><scope>GNUQQ</scope><scope>HCIFZ</scope><scope>JG9</scope><scope>K9.</scope><scope>KB.</scope><scope>L6V</scope><scope>L7M</scope><scope>LK8</scope><scope>M0S</scope><scope>M7P</scope><scope>M7S</scope><scope>P5Z</scope><scope>P62</scope><scope>P64</scope><scope>PDBOC</scope><scope>PQEST</scope><scope>PQQKQ</scope><scope>PQUKI</scope><scope>PTHSS</scope><scope>1XC</scope><orcidid>https://orcid.org/0000-0003-0292-5253</orcidid><orcidid>https://orcid.org/0000-0002-4015-4376</orcidid><orcidid>https://orcid.org/0000-0002-5583-1165</orcidid><orcidid>https://orcid.org/0000-0001-7309-8633</orcidid></search><sort><creationdate>20141001</creationdate><title>High-yield aqueous synthesis of multi-branched iron oxide core–gold shell nanoparticles: SERS substrate for immobilization and magnetic separation of bacteria</title><author>Tamer, Ugur ; Onay, Aykut ; Ciftci, Hakan ; Bozkurt, Akif Göktuğ ; Cetin, Demet ; Suludere, Zekiye ; Hakkı Boyacı, İsmail ; Daniel, Philippe ; Lagarde, Fabienne ; Yaacoub, Nader ; Greneche, Jean-Marc</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c380t-e9818a48ef297f298898a592cdfe59223661721119449b9fa7d622710a82b07b3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2014</creationdate><topic>Biopolymers</topic><topic>Characterization and Evaluation of Materials</topic><topic>Chemical Sciences</topic><topic>Chemistry and Materials Science</topic><topic>Condensed matter: electronic structure, electrical, magnetic, and optical properties</topic><topic>Condensed matter: structure, mechanical and thermal properties</topic><topic>Cross-disciplinary physics: materials science; rheology</topic><topic>Exact sciences and technology</topic><topic>Fourier transforms</topic><topic>Infrared spectroscopy</topic><topic>Inorganic Chemistry</topic><topic>Ions</topic><topic>Iron oxides</topic><topic>Lasers</topic><topic>Low-dimensional structures (superlattices, quantum well structures, multilayers): structure, and nonelectronic properties</topic><topic>Magnetic properties</topic><topic>Magnetic properties and materials</topic><topic>Magnetic properties of nanostructures</topic><topic>Materials Science</topic><topic>Methods of nanofabrication</topic><topic>Nanoparticles</topic><topic>Nanotechnology</topic><topic>Optical Devices</topic><topic>Optics</topic><topic>Photonics</topic><topic>Physical Chemistry</topic><topic>Physics</topic><topic>Polymers</topic><topic>Research Paper</topic><topic>Silver</topic><topic>Small particles and nanoscale materials</topic><topic>Spectrometry</topic><topic>Studies of specific magnetic materials</topic><topic>Surfaces and interfaces; thin films and whiskers (structure and nonelectronic properties)</topic><topic>X-ray diffraction</topic><toplevel>online_resources</toplevel><creatorcontrib>Tamer, Ugur</creatorcontrib><creatorcontrib>Onay, Aykut</creatorcontrib><creatorcontrib>Ciftci, Hakan</creatorcontrib><creatorcontrib>Bozkurt, Akif Göktuğ</creatorcontrib><creatorcontrib>Cetin, Demet</creatorcontrib><creatorcontrib>Suludere, Zekiye</creatorcontrib><creatorcontrib>Hakkı Boyacı, İsmail</creatorcontrib><creatorcontrib>Daniel, Philippe</creatorcontrib><creatorcontrib>Lagarde, Fabienne</creatorcontrib><creatorcontrib>Yaacoub, Nader</creatorcontrib><creatorcontrib>Greneche, Jean-Marc</creatorcontrib><collection>Pascal-Francis</collection><collection>CrossRef</collection><collection>ProQuest Central (Corporate)</collection><collection>Biotechnology Research Abstracts</collection><collection>Engineered Materials Abstracts</collection><collection>Mechanical &amp; Transportation Engineering Abstracts</collection><collection>Solid State and Superconductivity Abstracts</collection><collection>Toxicology Abstracts</collection><collection>Health &amp; Medical Collection</collection><collection>ProQuest Central (purchase pre-March 2016)</collection><collection>ProQuest Pharma Collection</collection><collection>METADEX</collection><collection>Technology Research Database</collection><collection>ProQuest SciTech Collection</collection><collection>ProQuest Technology Collection</collection><collection>ProQuest Natural Science Collection</collection><collection>Hospital Premium Collection</collection><collection>Hospital Premium Collection (Alumni Edition)</collection><collection>ProQuest Central (Alumni) (purchase pre-March 2016)</collection><collection>Materials Science &amp; Engineering Collection</collection><collection>ProQuest Central (Alumni Edition)</collection><collection>ProQuest One Sustainability</collection><collection>ProQuest Central UK/Ireland</collection><collection>Advanced Technologies &amp; Aerospace Collection</collection><collection>ProQuest Central Essentials</collection><collection>Biological Science Collection</collection><collection>ProQuest Central</collection><collection>Technology Collection</collection><collection>Natural Science Collection</collection><collection>Environmental Sciences and Pollution Management</collection><collection>ProQuest One Community College</collection><collection>ProQuest Materials Science Collection</collection><collection>ProQuest Central Korea</collection><collection>ANTE: Abstracts in New Technology &amp; Engineering</collection><collection>Engineering Research Database</collection><collection>Health Research Premium Collection</collection><collection>Health Research Premium Collection (Alumni)</collection><collection>ProQuest Central Student</collection><collection>SciTech Premium Collection</collection><collection>Materials Research Database</collection><collection>ProQuest Health &amp; Medical Complete (Alumni)</collection><collection>Materials Science Database</collection><collection>ProQuest Engineering Collection</collection><collection>Advanced Technologies Database with Aerospace</collection><collection>ProQuest Biological Science Collection</collection><collection>Health &amp; Medical Collection (Alumni Edition)</collection><collection>Biological Science Database</collection><collection>Engineering Database</collection><collection>Advanced Technologies &amp; Aerospace Database</collection><collection>ProQuest Advanced Technologies &amp; Aerospace Collection</collection><collection>Biotechnology and BioEngineering Abstracts</collection><collection>Materials Science Collection</collection><collection>ProQuest One Academic Eastern Edition (DO NOT USE)</collection><collection>ProQuest One Academic</collection><collection>ProQuest One Academic UKI Edition</collection><collection>Engineering Collection</collection><collection>Hyper Article en Ligne (HAL)</collection><jtitle>Journal of nanoparticle research : an interdisciplinary forum for nanoscale science and technology</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Tamer, Ugur</au><au>Onay, Aykut</au><au>Ciftci, Hakan</au><au>Bozkurt, Akif Göktuğ</au><au>Cetin, Demet</au><au>Suludere, Zekiye</au><au>Hakkı Boyacı, İsmail</au><au>Daniel, Philippe</au><au>Lagarde, Fabienne</au><au>Yaacoub, Nader</au><au>Greneche, Jean-Marc</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>High-yield aqueous synthesis of multi-branched iron oxide core–gold shell nanoparticles: SERS substrate for immobilization and magnetic separation of bacteria</atitle><jtitle>Journal of nanoparticle research : an interdisciplinary forum for nanoscale science and technology</jtitle><stitle>J Nanopart Res</stitle><date>2014-10-01</date><risdate>2014</risdate><volume>16</volume><issue>10</issue><spage>1</spage><pages>1-</pages><artnum>2624</artnum><issn>1388-0764</issn><eissn>1572-896X</eissn><abstract>The high product yield of multi-branched core–shell Fe 3− x O 4 @Au magnetic nanoparticles was synthesized used as magnetic separation platform and surface-enhanced Raman scattering (SERS) substrates. The multi-branched magnetic nanoparticles were prepared by a seed-mediated growth approach using magnetic gold nanospheres as the seeds and subsequent reduction of metal salt with ascorbic acid in the presence of a stabilizing agent chitosan biopolymer and silver ions. The anisotropic growth of nanoparticles was observed in the presence of chitosan polymer matrix resulting in multi-branched nanoparticles with a diameter over 100 nm, and silver ions also play a crucial role on the growth of multi-branched nanoparticles. We propose the mechanism of the formation of multi-branched nanoparticles while the properties of nanoparticles embedded in chitosan matrix are discussed. The surface morphology of nanoparticles was characterized with transmission electron microscopy, scanning electron microscopy, ultraviolet visible spectroscopy (UV–Vis), X-ray diffraction, and fourier transform infrared spectroscopy and 57 Fe Mössbauer spectrometry. Additionally, the magnetic properties of the nanoparticles were also examined. We also demonstrated that the synthesized Fe 3− x O 4 @Au multi-branched nanoparticle is capable of targeted separation of pathogens from matrix and sensing as SERS substrates.</abstract><cop>Dordrecht</cop><pub>Springer Netherlands</pub><doi>10.1007/s11051-014-2624-7</doi><orcidid>https://orcid.org/0000-0003-0292-5253</orcidid><orcidid>https://orcid.org/0000-0002-4015-4376</orcidid><orcidid>https://orcid.org/0000-0002-5583-1165</orcidid><orcidid>https://orcid.org/0000-0001-7309-8633</orcidid></addata></record>
fulltext fulltext
identifier ISSN: 1388-0764
ispartof Journal of nanoparticle research : an interdisciplinary forum for nanoscale science and technology, 2014-10, Vol.16 (10), p.1, Article 2624
issn 1388-0764
1572-896X
language eng
recordid cdi_hal_primary_oai_HAL_hal_01974827v1
source Springer Nature - Complete Springer Journals
subjects Biopolymers
Characterization and Evaluation of Materials
Chemical Sciences
Chemistry and Materials Science
Condensed matter: electronic structure, electrical, magnetic, and optical properties
Condensed matter: structure, mechanical and thermal properties
Cross-disciplinary physics: materials science
rheology
Exact sciences and technology
Fourier transforms
Infrared spectroscopy
Inorganic Chemistry
Ions
Iron oxides
Lasers
Low-dimensional structures (superlattices, quantum well structures, multilayers): structure, and nonelectronic properties
Magnetic properties
Magnetic properties and materials
Magnetic properties of nanostructures
Materials Science
Methods of nanofabrication
Nanoparticles
Nanotechnology
Optical Devices
Optics
Photonics
Physical Chemistry
Physics
Polymers
Research Paper
Silver
Small particles and nanoscale materials
Spectrometry
Studies of specific magnetic materials
Surfaces and interfaces
thin films and whiskers (structure and nonelectronic properties)
X-ray diffraction
title High-yield aqueous synthesis of multi-branched iron oxide core–gold shell nanoparticles: SERS substrate for immobilization and magnetic separation of bacteria
url https://sfx.bib-bvb.de/sfx_tum?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&ctx_tim=2025-01-15T17%3A01%3A00IST&url_ver=Z39.88-2004&url_ctx_fmt=infofi/fmt:kev:mtx:ctx&rfr_id=info:sid/primo.exlibrisgroup.com:primo3-Article-proquest_hal_p&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.atitle=High-yield%20aqueous%20synthesis%20of%20multi-branched%20iron%20oxide%20core%E2%80%93gold%20shell%20nanoparticles:%20SERS%20substrate%20for%20immobilization%20and%20magnetic%20separation%20of%20bacteria&rft.jtitle=Journal%20of%20nanoparticle%20research%20:%20an%20interdisciplinary%20forum%20for%20nanoscale%20science%20and%20technology&rft.au=Tamer,%20Ugur&rft.date=2014-10-01&rft.volume=16&rft.issue=10&rft.spage=1&rft.pages=1-&rft.artnum=2624&rft.issn=1388-0764&rft.eissn=1572-896X&rft_id=info:doi/10.1007/s11051-014-2624-7&rft_dat=%3Cproquest_hal_p%3E3464153081%3C/proquest_hal_p%3E%3Curl%3E%3C/url%3E&disable_directlink=true&sfx.directlink=off&sfx.report_link=0&rft_id=info:oai/&rft_pqid=1613395232&rft_id=info:pmid/&rfr_iscdi=true