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

この研究は、材料の研究と教育のための国立科学財団のパートナーシップ（PREM）助成番号DMR - 0934218によってサポートされていました。また、研究資源のためのナショナルセンターから受賞番号2G12RR013646 - 11によってサポートされていました。内容はもっぱら著者の責任であり、必ずしも研究資源や国立衛生研究所のためのナショナルセンターの公式見解を表すものではありません。

1。銀の種子の準備<ol><li>任意の質量を考慮し、脱イオン（DI）水10mLと混合し、硝酸銀（AgNO 3を ）のストック溶液を調製。ソリューションのモル濃度を計算する。光から分​​離するために暗い場所で解決してください。 </li><li> 5mMのソリューションを作るために純水10 mLにクエン酸ナトリウム三塩基の14.7ミリグラム（のNa 3 C 6 H 5 O 7）を追加します?...

<ol>
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本研究では、銀の種子を使用して金nanostarsを合成する方法を提示している。我々は、銀の種子がnanostarsの70％の生産の歩留まりにあることが判明。 nanostarsは、800 nmと850 nmの7,23の間に集中彼らの表面プラズモン共鳴モードに相当する近赤外吸収ピークを、持っている。これらのプロパティのプロパティは、当社の金nanostarsは、24から26まで生物医学アプリケーションのための使?...

<table border="1"><tbody><tr><td> 試薬の名前 </td><td> 会社 </td><td> カタログ番号 </td><td> 純度 </td></tr><tr><td>クエン酸ナトリウム三塩基性脱水</td><td>シグマ</td><td> S4641 </td><td> 99.0パーセント</td></tr><tr><td>硝酸銀</td><td>アルドリッチ</td><td> 204390 </td><td> 99.9999パーセント</td></tr><tr><td>水素化ホウ素ナトリウム</td><td>アルドリッチ</td><td> 213462 </td><td> 99パーセント</td></tr><tr><td> L -アスコルビン酸</td><td>シグマアルドリッチ</td><td> 255564 </td><td> 99 +％ </td></tr><tr><td>ゴールド塩化物三水和物</td><td>アルドリッチ</td><td> 520918 </td><td> 99.9 +％ </td></tr><tr><td>臭化ヘキサデシルトリメチルアンモニウム（CTAB） </td><td>シグマ</td><td> H6269 </td><td></td></tr></tbody></table><table border="1"><tbody><tr><td> 機器の名前 </td><td> 会社 </stチョロン&gt; </td><td> コメント </td></tr><tr><td> JEOL 2010 - F </td><td> JEOL </td><td>透過型電子顕微鏡</td></tr><tr><td>日立S - 5500 </td><td>日立</td><td>電子顕微鏡、スキャンモードで使用</td></tr><tr><td> Olisキャリー- 14分光光度計</td><td> Olis </td><td>分光光度計</td></tr></tbody></table>

gold nanostar synthesis with a silver seed mediated growth method

ナノスケールコロイドの物理的、化学的および光学的性質は、材料組成、サイズと形状1-5依存する。光熱アブレーション、薬物送達や他の多くの生物医学アプリケーション6のナノコロイドを使用する際の大きな関心があります。ゴールドは、特にその低毒性7-9の使用されています。金属ナノコロイドの性質は、強い表面プラズモン共鳴10を持つことができるということです。表面プラズモン共鳴モードのピークは、金属ナノコロイドの構造と組成に依存する。表面プラズモン共鳴モードが光で刺激されているため、生体組織の透過率が11、12が最大となる場所の近くに赤外線でピーク吸光度を持っている必要がある。 我々はまた、星形ナノ粒子13から15またはnanostars 16として知られる星形のコロイド金を、合成する方法を提示する。このメソッドは、に基づいている金コロイドの17から22の異方成長のための核剤として使用される銀の種子を含むolution。その結果、金コロイドの走査型電子顕微鏡（SEM）の分析では、ナノ構造の70％がnanostarsであることを示した。粒子の他の30％がdecahedraと菱形のアモルファスのクラスターであった。 nanostarsの吸収ピークは（840 nm）の近赤外であることが検出された。したがって、我々の手法は、特に光熱アブレーションのために、生物医学アプリケーションに適した金nanostarsを生成します。

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

我々はシルバーシード媒介成長法を用いて星状の金nanostarsを合成した。 nanostarsの直径は200〜300nmの範囲であるとヒントの数は7から10に変化する。ナノ粒子は、近赤外を中心に幅広い表面プラズモン共鳴のモードを持っている。

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