Name: gold nanostar synthesis with a silver seed mediated growth method
Uploaded: 2012-01-15T14:00:00
Description: Watch this Scientific Journal Video about Gold Nanostar Synthesis with a Silver Seed Mediated Growth Method at JoVE.com

Denna forskning stöds av National partnerskap Science Foundation för forskning och utbildning i material (PREM) Grant nr DMR-0.934.218. Det var också stöds av Award Antal 2G12RR013646-11 från National Center for Research Resources. Innehållet är ensamt ansvarig för författare och inte nödvändigtvis representerar officiella ståndpunkter National Center for Forskning och National Institutes of Health.

1. Silver frö förberedelse <ol><li> Bered en stamlösning av silvernitrat (AgNO 3) genom att ta en godtycklig massa och blanda det med 10 ml avjoniserat (DI) vatten. Beräkna molaritet av lösningen. Förvara lösningen i en mörk plats för att isolera den från ljus. </li><li> Lägg till 14,7 mg natriumcitrat tribasisk (Na 3 C 6 H 5 O 7) till 10 ml DI-vatten för att göra en 5 mm lösning. Skaka injektionsflaskan tills pulvret är upplöst. </li><li> Lägg ti...

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	<li>Irimpan, L., Nampoori, V. P. N., Radhakrishnan, P., Krishnan, B., Deepthy, A. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Size-dependent+enhancement+of+nonlinear+optical+properties+in+nanocolloids+of+ZnO.">Size-dependent enhancement of nonlinear optical properties in nanocolloids of ZnO.</a> Journal of Applied Physics. 103, (2008).</li><li>Sharma, V., Park, K., Srinivasarao, M. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Colloidal+dispersion+of+gold+nanorods:+Historical+background,+optical+properties,+seed-mediated+synthesis,+shape+separation+and+self-assembly.">Colloidal dispersion of gold nanorods: Historical background, optical properties, seed-mediated synthesis, shape separation and self-assembly.</a> Materials Science and Engineering: R: Reports. 65, 1-38 (2009).</li><li>El-Sayed, M. A. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Some+interesting+properties+of+metals+confined+in+time+and+nanometer+space+of+different+shapes.">Some interesting properties of metals confined in time and nanometer space of different shapes.</a> Accounts of Chemical Research. 34, 257-2564 (2001).</li><li>Daniel, M. C., Astruc, D. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Gold+nanoparticles:+assembly,+supramolecular+chemistry,+quantum-size-related+properties,+and+applications+toward+biology,+catalysis,+and+nanotechnology.">Gold nanoparticles: assembly, supramolecular chemistry, quantum-size-related properties, and applications toward biology, catalysis, and nanotechnology.</a> Chemical reviews. 104, 293-346 (2004).</li><li>Burda, C., Chen, X., Narayanan, R., El-Sayed, M. A. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Chemistry+and+Properties+of+Nanocrystals+of+Different+Shapes.">Chemistry and Properties of Nanocrystals of Different Shapes.</a> Chemical reviews. 105, 1025-1102 (2005).</li><li>Hu, M., Chen, J. Y. X., Li, J. Y., Au, L., Hartland, G. V., Li, X. D., Marquez, M., Xia, Y. N. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Gold+nanostructures:+engineering+their+plasmonic+properties+for+biomedical+applications.">Gold nanostructures: engineering their plasmonic properties for biomedical applications.</a> Chemical Society Reviews. 35, 1084-1094 (2006).</li><li>Seo, J. T., Yang, Q., Kim, W. J., Heo, J., Ma, S. M., Austin, J., Yun, W. S., Jung, S. S., Han, S. W., Tabibi, B., Temple, D. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Optical+nonlinearities+of+Au+nanoparticles+and+Au/Ag+coreshells.">Optical nonlinearities of Au nanoparticles and Au/Ag coreshells.</a> Opt. Lett. 34, 307-309 (2009).</li><li>Jeong, S., Choi, S. Y., Park, J., Seo, J. -. H., Park, J., Cho, K., Joo, S. -. W., Lee, S. Y. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Low-toxicity+chitosan+gold+nanoparticles+for+small+hairpin+RNA+delivery+in+human+lung+adenocarcinoma+cells.">Low-toxicity chitosan gold nanoparticles for small hairpin RNA delivery in human lung adenocarcinoma cells.</a> Journal of Materials Chemistry. 21, 13853-13859 (2011).</li><li>Huang, X., Jain, P. K., El-Sayed, I. H., El-Sayed, M. A. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Gold+nanoparticles:+interesting+optical+properties+and+recent+applications+in+cancer+diagnostics+and+therapy.">Gold nanoparticles: interesting optical properties and recent applications in cancer diagnostics and therapy.</a> Nanomedicine. 2, 681-693 (2007).</li><li>Link, S., El-Sayed, M. A. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Shape+and+size+dependence+of+radiative,+non-radiative+and+photothermal+properties+of+gold+nanocrystals.">Shape and size dependence of radiative, non-radiative and photothermal properties of gold nanocrystals.</a> International Reviews in Physical Chemistry. 19, 409-453 (2000).</li><li>El-Sayed, I. H., Huang, X. H., El-Sayed, M. A. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Selective+laser+photo-thermal+therapy+of+epithelial+carcinoma+using+anti-EGFR+antibody+conjugated+gold+nanoparticles.">Selective laser photo-thermal therapy of epithelial carcinoma using anti-EGFR antibody conjugated gold nanoparticles.</a> Cancer Letters. 239, 129-135 (2006).</li><li>O'Neal, D. P., Hirsch, L. R., Halas, N. J., Payne, J. D., West, J. L. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Photo-thermal+tumor+ablation+in+mice+using+near+infrared-absorbing+nanoparticles.">Photo-thermal tumor ablation in mice using near infrared-absorbing nanoparticles.</a> Cancer Letters. 209, 171-176 (2004).</li><li>Nehl, C. L., Liao, H. W., Hafner, J. H. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Optical+properties+of+star-shaped+gold+nanoparticles.">Optical properties of star-shaped gold nanoparticles.</a> Nano Letters. 6, 683-688 (2006).</li><li>Pazos-Perez, N., Rodriguez-Gonzalez, B., Hilgendorff, M., Giersig, M., Liz-Marzan, L. M. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Gold+encapsulation+of+star-shaped+FePt+nanoparticles.">Gold encapsulation of star-shaped FePt nanoparticles.</a> Journal of Materials Chemistry. 20, 61-64 (2010).</li><li>Sahoo, G. P., Bar, H., Bhui, D. K., Sarkar, P., Samanta, S., Pyne, S., Ash, S., Misra, A. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Synthesis+and+photo+physical+properties+of+star+shaped+gold+nanoparticles.">Synthesis and photo physical properties of star shaped gold nanoparticles.</a> Colloids and Surfaces A: Physicochemical and Engineering Aspects. , 375-371 (2011).</li><li>Senthil Kumar, P., Pastoriza-Santos, I., Rodriguez-Gonzalez, B., Garcia de Abajo, F. J., Liz-Marzan, L. M. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=High-yield+synthesis+and+optical+response+of+gold+nanostars.">High-yield synthesis and optical response of gold nanostars.</a> Nanotechnology. 19, (2008).</li><li>Goodrich, G. P., Bao, L. L., Gill-Sharp, K., Sang, K. L., Wang, J., Payne, J. D. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Photothermal+therapy+in+a+murine+colon+cancer+model+using+near-infrared+absorbing+gold+nanorods.">Photothermal therapy in a murine colon cancer model using near-infrared absorbing gold nanorods.</a> Journal of Biomedical Optics. 15, (2010).</li><li>Zhang, D., Neumann, O., Wang, H., Yuwono, V. M., Barhoumi, A., Perham, M., Hartgerink, J. D., Wittung-Stafshede, P., Halas, N. J. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Gold+Nanoparticles+Can+Induce+the+Formation+of+Protein-based+Aggregates+at+Physiological+pH.">Gold Nanoparticles Can Induce the Formation of Protein-based Aggregates at Physiological pH.</a> Nano Lett. 9, 666-671 (2009).</li><li>Alkilany, A. M., Nagaria, P. K., Hexel, C. R., Shaw, T. J., Murphy, C. J., Wyatt, M. D. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Cellular+uptake+and+cytotoxicity+of+gold+nanorods:+molecular+origin+of+cytotoxicity+and+surface+effects.">Cellular uptake and cytotoxicity of gold nanorods: molecular origin of cytotoxicity and surface effects.</a> Small. 5, 701-708 (2009).</li><li>Sun, L., Liu, D., Wang, Z. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Functional+gold+nanoparticle-peptide+complexes+as+cell-targeting+agents.">Functional gold nanoparticle-peptide complexes as cell-targeting agents.</a> Langmuir. 24, 10293-10297 (2008).</li><li>Park, J., Estrada, A., Sharp, K., Sang, K., Schwartz, J. A., Smith, D. K., Coleman, C., Payne, J. D., Korgel, B. A., Dunn, A. K., Tunnell, J. W. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Two-photon-induced+photoluminescence+imaging+of+tumors+using+near-infrared+excited+gold+nanoshells.">Two-photon-induced photoluminescence imaging of tumors using near-infrared excited gold nanoshells.</a> Opt. Express. 16, 1590-1599 (2008).</li><li>Nikoobakht, B., El-Sayed, M. A. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Preparation+and+growth+mechanism+of+gold+nanorods+(NRs)+using+seed-mediated+growth+method.">Preparation and growth mechanism of gold nanorods (NRs) using seed-mediated growth method.</a> Chemistry of Materials. 15, 1957-1962 (2003).</li><li>Hao, F., Nehl, C. L., Hafner, J. H., Nordlander, P. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Plasmon+resonances+of+a+gold+nanostar.">Plasmon resonances of a gold nanostar.</a> Nano Letters. 7, 729-732 (2007).</li><li>Hao, F., Nordlander, P., Sonnefraud, Y., Dorpe, P. V. a. n., Maier, S. A. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Tunability+of+Subradiant+Dipolar+and+Fano-Type+Plasmon+Resonances+in+Metallic+Ring/Disk+Cavities:+Implications+for+Nanoscale+Optical+Sensing.">Tunability of Subradiant Dipolar and Fano-Type Plasmon Resonances in Metallic Ring/Disk Cavities: Implications for Nanoscale Optical Sensing.</a> ACS Nano. 3, 643-652 (2009).</li><li>Sweeney, C. M., Hasan, W., Nehl, C. L., Odom, T. W. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Optical+Properties+of+Anisotropic+Core-Shell+Pyramidal+Particles.">Optical Properties of Anisotropic Core-Shell Pyramidal Particles.</a> Journal of Physical Chemistry A. 113, 4265-4268 (2009).</li><li>Dickerson, E. B., Dreaden, E. C., Huang, X. H., El-Sayed, I. H., Chu, H. H., Pushpanketh, S., McDonald, J. F., El-Sayed, M. A. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Gold+nanorod+assisted+near-infrared+plasmonic+photothermal+therapy+(PPTT)+of+squamous+cell+carcinoma+in+mice.">Gold nanorod assisted near-infrared plasmonic photothermal therapy (PPTT) of squamous cell carcinoma in mice.</a> Cancer Letters. 269, 57-66 (2008).</li><li>Jana, N. R., Gearheart, L., Murphy, C. J. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Wet+chemical+synthesis+of+high+aspect+ratio+cylindrical+gold+nanorods.">Wet chemical synthesis of high aspect ratio cylindrical gold nanorods.</a> Journal of Physical Chemistry B. 105, 4065-4067 (2001).</li><li>Jana, N. R., Gearheart, L., Murphy, C. J. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Seed-mediated+growth+approach+for+shape-controlled+synthesis+of+spheroidal+and+rod-like+gold+nanoparticles+using+a+surfactant+template.">Seed-mediated growth approach for shape-controlled synthesis of spheroidal and rod-like gold nanoparticles using a surfactant template.</a> Advanced Materials. 13, 1389-1393 (2001).</li><li>Xiao, J., Qi, L. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Surfactant-assisted,+shape-controlled+synthesis+of+gold+nanocrystals.">Surfactant-assisted, shape-controlled synthesis of gold nanocrystals.</a> Nanoscale. 3, 1383-1396 (2011).</li><li>Tao, A. R., Habas, S., Yang, P. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Shape+control+of+colloidal+metal+nanocrystals.">Shape control of colloidal metal nanocrystals.</a> Small. 4, 310-325 (2008).</li><li>Cole, J. R., Mirin, N. A., Knight, M. W., Goodrich, G. P., Halas, N. J. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Photothermal+Efficiencies+of+Nanoshells+and+Nanorods+for+Clinical+Therapeutic+Applications.">Photothermal Efficiencies of Nanoshells and Nanorods for Clinical Therapeutic Applications.</a> Journal of Physical Chemistry C. 113, 12090-12094 (2009).</li><li>Choi, J. S., Park, J. C., Nah, H., Woo, S., Oh, J., Kim, K. M., Cheon, G. J., Chang, Y., Yoo, J., Cheon, J. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=A+hybrid+nanoparticle+probe+for+dual-modality+positron+emission+tomography+and+magnetic+resonance+imaging.">A hybrid nanoparticle probe for dual-modality positron emission tomography and magnetic resonance imaging.</a> Angew. Chem. Int. Ed. Engl. 47, 6259-6262 (2008).</li><li>Chithrani, B. D., Ghazani, A. A., Chan, W. C. W. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Determining+the+Size+and+Shape+Dependence+of+Gold+Nanoparticle+Uptake+into+Mammalian+Cells.">Determining the Size and Shape Dependence of Gold Nanoparticle Uptake into Mammalian Cells.</a> Nano Letters. 6, 662-668 (2006).</li></ol>

I detta arbete har vi presenterat en metod för att syntetisera guld nanostars med silver frön. Vi fann att silver frön resulterade i en avkastning på 70% produktionen av nanostars. Den nanostars har ett nära infraröd absorption topp, motsvarande deras ytplasmonresonans läge, centrerat mellan 800 nm och 850 nm 7, 23. Dessa egenskaper egenskaper ger vårt guld nanostars vara till nytta för biomedicinska tillämpningar 24-26, som foto-termisk ablation. En stor skil...

<table border="1"><tbody><tr><td> Reagensets namn </td><td> Företag </td><td> Katalognummer </td><td> Purity </td></tr><tr><td> Natriumcitrat tribasisk torka </td><td> Sigma </td><td> S4641 </td><td> 99,0% </td></tr><tr><td> Silvernitrat </td><td> Aldrich </td><td> 204.390 </td><td> 99,9999% </td></tr><tr><td> Natrium borohydride </td><td> Aldrich </td><td> 213.462 </td><td> 99% </td></tr><tr><td> L-askorbinsyra </td><td> Sigma-Aldrich </td><td> 255.564 </td><td> 99 +% </td></tr><tr><td> Guld klorid trihydrat </td><td> Aldrich </td><td> 520.918 </td><td> 99,9 +% </td></tr><tr><td> Hexadecyltrimethylammonium bromid (CTAB) </td><td> Sigma </td><td> H6269 </td><td></td></tr></tbody></table><table border="1"><tbody><tr><td> Namn på utrustning </td><td> Företag </stRong&gt; </td><td> Kommentarer </td></tr><tr><td> JEOL 2010-F </td><td> JEOL </td><td> Transmissionselektronmikroskop </td></tr><tr><td> Hitachi S-5500 </td><td> Hitachi </td><td> Används i svepelektronmikroskop läge </td></tr><tr><td> Olis Cary-14 spektrofotometer </td><td> Olis </td><td> Spektrofotometer </td></tr></tbody></table>

gold nanostar synthesis with a silver seed mediated growth method

Den fysiska, kemiska och optiska egenskaper hos nanonivå kolloider beror på deras materialsammansättning, storlek och form 1-5. Det finns ett stort intresse för att använda nano-kolloider för foto-termisk ablation, drug delivery och många andra biomedicinska tillämpningar 6. Guld används särskilt på grund av dess låga toxicitet 7-9. En fastighet av metall nano-kolloider är att de kan ha en stark ytplasmonresonans 10. Toppen av ytplasmonresonans läge beror på struktur och sammansättning av metallen nano-kolloider. Eftersom ytplasmonresonans läge stimuleras med ljus finns det ett behov av att ha toppen absorbans i en nära infraröda där biologisk vävnad transmissivitet är maximal 11, 12. Vi presenterar en metod för att syntetisera stjärnformade kolloidalt guld, även känd som stjärnformade nanopartiklar 13-15 eller nanostars 16. Denna metod baseras på en såolution innehållande silver frön som används som nucleating agent för anisotropa tillväxt av guld kolloider 17-22. Svepelektronmikroskop (SEM) analys av den resulterande guld kolloiden visade att 70% av nanostrukturer var nanostars. De övriga 30% av partiklarna var amorfa kluster av decahedra och rhomboids. Absorbansen toppen av nanostars upptäcktes att vara i nära infraröd (840 nm). Således ger vår metod guld nanostars lämplig för biomedicinska tillämpningar, särskilt för foto-termisk ablation.

Watch this Scientific Journal Video about Gold Nanostar Synthesis with a Silver Seed Mediated Growth Method at JoVE.com

Gold Nanostar Synthesis with a Silver Seed Mediated Growth Method

Vi syntetiseras stjärnformade guld nanostars med ett silver frö metod medierad tillväxthämning. Diametern på nanostars varierar från 200 till 300 nm och antalet tips varierar från 7 till 10. Nanopartiklarna har ett brett ytplasmonresonans läge centrerat i nära infrarött.

Guld Nanostar Syntes med Silver Seed medierad tillväxthämning Metod

The physical, chemical and optical properties of nano-scale colloids depend on their material composition, size and shape 1-5. There is a great interest ...

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