METHOD FOR PREPARING HIGH-CONCENTRATION PENTA-TWINNED GOLD NANOPARTICLES
The present invention concerns a method for preparing penta-twinned gold nanoparticles comprising at least the following steps: i) providing a suspension of gold seeds comprising gold seeds, a cationic surfactant and at least one inert solvent, the temperature of the suspension being between 30 and...
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| creator | PAROLA, Stéphane SANTUCCI, Stéphane CHATEAU, Denis |
| description | The present invention concerns a method for preparing penta-twinned gold nanoparticles comprising at least the following steps: i) providing a suspension of gold seeds comprising gold seeds, a cationic surfactant and at least one inert solvent, the temperature of the suspension being between 30 and 75°C; ii) providing a growth solution comprising a gold salt, a cationic surfactant, a reducing agent, the reducing agent being an aromatic compound comprising at least one aromatic ring carrying at least one hydroxyl group, and optionally at least one base; iii) subjecting the suspension of gold seeds from step i) to a growth treatment comprising the following steps: iii1) adding the growth solution from step ii) in a controlled manner to the suspension of gold seeds from step i); iii2) maintaining the temperature of the mixture obtained in step iii1) at a temperature of between 30°C and 75°C for at least 5 minutes. The invention also concerns a nanosuspension likely to be obtained according to the method of the invention, and the use of same for manufacturing an optical sensor. |
| format | Patent |
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The invention also concerns a nanosuspension likely to be obtained according to the method of the invention, and the use of same for manufacturing an optical sensor.</description><language>eng ; fre ; ger</language><subject>AFTER-TREATMENT OF SINGLE CRYSTALS OR A HOMOGENEOUSPOLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE ; APPARATUS THEREFOR ; CHEMISTRY ; CRYSTAL GROWTH ; METALLURGY ; PRODUCTION OF A HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITHDEFINED STRUCTURE ; REFINING BY ZONE-MELTING OF MATERIAL ; SINGLE CRYSTALS OR HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITHDEFINED STRUCTURE ; SINGLE-CRYSTAL-GROWTH ; UNIDIRECTIONAL SOLIDIFICATION OF EUTECTIC MATERIAL ORUNIDIRECTIONAL DEMIXING OF EUTECTOID MATERIAL</subject><creationdate>2022</creationdate><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20220427&DB=EPODOC&CC=EP&NR=3987086A1$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,780,885,25564,76547</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20220427&DB=EPODOC&CC=EP&NR=3987086A1$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>PAROLA, Stéphane</creatorcontrib><creatorcontrib>SANTUCCI, Stéphane</creatorcontrib><creatorcontrib>CHATEAU, Denis</creatorcontrib><title>METHOD FOR PREPARING HIGH-CONCENTRATION PENTA-TWINNED GOLD NANOPARTICLES</title><description>The present invention concerns a method for preparing penta-twinned gold nanoparticles comprising at least the following steps: i) providing a suspension of gold seeds comprising gold seeds, a cationic surfactant and at least one inert solvent, the temperature of the suspension being between 30 and 75°C; ii) providing a growth solution comprising a gold salt, a cationic surfactant, a reducing agent, the reducing agent being an aromatic compound comprising at least one aromatic ring carrying at least one hydroxyl group, and optionally at least one base; iii) subjecting the suspension of gold seeds from step i) to a growth treatment comprising the following steps: iii1) adding the growth solution from step ii) in a controlled manner to the suspension of gold seeds from step i); iii2) maintaining the temperature of the mixture obtained in step iii1) at a temperature of between 30°C and 75°C for at least 5 minutes. 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The invention also concerns a nanosuspension likely to be obtained according to the method of the invention, and the use of same for manufacturing an optical sensor.</abstract><oa>free_for_read</oa></addata></record> |
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| language | eng ; fre ; ger |
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| subjects | AFTER-TREATMENT OF SINGLE CRYSTALS OR A HOMOGENEOUSPOLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE APPARATUS THEREFOR CHEMISTRY CRYSTAL GROWTH METALLURGY PRODUCTION OF A HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITHDEFINED STRUCTURE REFINING BY ZONE-MELTING OF MATERIAL SINGLE CRYSTALS OR HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITHDEFINED STRUCTURE SINGLE-CRYSTAL-GROWTH UNIDIRECTIONAL SOLIDIFICATION OF EUTECTIC MATERIAL ORUNIDIRECTIONAL DEMIXING OF EUTECTOID MATERIAL |
| title | METHOD FOR PREPARING HIGH-CONCENTRATION PENTA-TWINNED GOLD NANOPARTICLES |
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