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

이 연구는 재료의 연구와 교육에 대한 국립 과학 재단 (National Science Foundation) 협력 (PREM) 부여 번호 DMR - 0934218에 의해 지원되었다. 또한 연구 자원에 대한 국립 센터에서 보너스 번호 2G12RR013646 - 11에 의해 지원되었다. 내용은 전적으로 저자의 책임이며 반드시 연구 자원이나 국립 보건원에 대한 국립 센터의 공식 견해를 대변하지 않습니다.

1. 실버 종자 준비 <ol><li> 임의의 질량을 감수하면서 deionized (DI) 물 10 ML로 혼합하여 실버 질산 (AgNO 3) 재고 솔루션을 준비합니다. 솔루션의 molarity을 계산합니다. 라이트에서 분리 어두운 장소에 솔루션을 보관하십시오. </li><li> 5 MM 솔루션을 만들기 위해 DI 물 10 ML에 나트륨 구연산 tribasic의 14.7 MG (나 3 C 6 H 5 O 7) 추가합니다. 파우더가 해산 때까지 병을 흔?...

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이 작품에서 우리는 실버 종자를 사용하여 골드 nanostars를 종합하는 방법을 제시합니다. 우리는 실버 씨앗이 nanostars의 70 %를 생산 수율 결과 것으로 나타났습니다. nanostars 800 NM 850 NM 7, 23 사이를 중심으로 그들의 표면 plasmon 공진 모드에 해당하는 가까운 적외선 흡수 피크를,있다. 이러한 속성 속성은 우리의 골드 nanostars 이러한 사진 열 절제로 24-26 생물 의학 응용 프로그램에 사용...

<table border="1"><tbody><tr><td> 시약의 이름 </td><td> 회사 </td><td> 카탈로그 번호 </td><td> 순도 </td></tr><tr><td> 나트륨 구연산 tribasic의 탈수 </td><td> 시그마 </td><td> S4641 </td><td> 99.0 % </td></tr><tr><td> 실버 질산염 </td><td> 올드 리치 </td><td> 204,390 </td><td> 99.9999 % </td></tr><tr><td> 나트륨 borohydride </td><td> 올드 리치 </td><td> 213,462 </td><td> 99% </td></tr><tr><td> L - 아스코르비 산 </td><td> 시그마 - 올드 리치 </td><td> 255,564 </td><td> 99 이상 % </td></tr><tr><td> 골드 염화물 trihydrate </td><td> 올드 리치 </td><td> 520,918 </td><td> 99.9 이상 % </td></tr><tr><td> Hexadecyltrimethylammonium의 브로마이드 (CTAB) </td><td> 시그마 </td><td> H6269 </td><td></td></tr></tbody></table><table border="1"><tbody><tr><td> 장비의 명칭 </td><td> 회사 </st룽&gt; </td><td> 댓글 </td></tr><tr><td> JEOL 2010 - F </td><td> JEOL </td><td> 전송 전자 현미경 </td></tr><tr><td> 히타치 S - 5500 </td><td> 히타치 </td><td> 전자 현미경 모드를 스캔에 사용 </td></tr><tr><td> Olis 캐리 - 14 분광 광도계 </td><td> Olis </td><td> 분광 광도계 </td></tr></tbody></table>

gold nanostar synthesis with a silver seed mediated growth method

나노 스케일 colloids의 물리적, 화학적 및 광학 성질들은 재료 성분, 크기와 모양 1-5에 따라 달라집니다. 사진 열 절제, 약물 전달 및 기타 여러 생명 의학 애플 리케이션 6 나노 colloids를 사용하여 큰 관심이 있습니다. 골드는 특히 때문에 낮은 독성 7-9 중 사용됩니다. 금속 나노 colloids의 속성들은 강력한 표면 plasmon 공명 10 가질 수 있습니다. 표면 plasmon 공명 모드의 절정은 금속 나노 colloids의 구조와 구성에 따라 달라집니다. 표면 plasmon 공명 모드가 빛을 자극되기 때문에 생물 학적 조직 투과율이 11, 12 최대한의 어디에 가까운 적외선의 최대 흡광도를 가질 필요가있다. 우리는 또한 별 모양 nanoparticles 13-15 또는 nanostars 16 알려져 별 모양의 금 콜로이드를 합성하는 방법을 제시한다. 이 방법은로 기반황금 colloids 17-22의 비등 방성 성장을위한 nucleating 에이전트로 사용되는 은색 씨앗을 포함 olution. 결과 금 콜로이드의 스캐닝 전자 현미경 (SEM) 분석은 nanostructures의 70 %가 nanostars 것을 보여주었다. 입자의 다른 30 ​​% decahedra 및 rhomboids의 비정질 클러스터했다. nanostars의 흡광도 피크는 가까운 적외선 (840 NM)에 있어야 발견했습니다. 따라서, 우리의 방법은 특히 사진 열 절제를 위해, 생명 의학 애플 리케이션에 적합한 골드 nanostars을 생산하고 있습니다.

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

우리는 은색 씨앗 중재의 성장 방법을 사용하여 별 모양의 골드 nanostars을 합성. nanostars의 직경이 200-300 nm의 범위에서 및 도움말의 숫자 7에서 10에 따라 다릅니다. nanoparticles는 가까운 적외선 중심으로 광범위한 표면 plasmon 공진 모드를있다.

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Observing and Quantifying Fibroblast-mediated Fibrin Gel Compaction

섬유아세포 매개 피브린 겔 다짐 관찰 및 정량화

Cells embedded in collagen and fibrin gels attach and exert traction forces on the fibers of the gel. These forces can lead to local and global ...

Synthesis of an Intein-mediated Artificial Protein Hydrogel

테인 매개 인공 단백질 히드로 겔의 합성

We present the synthesis of a highly stable protein hydrogel mediated by a split-intein-catalyzed protein trans-splicing reaction. The building blocks of ...

Formation of Biomembrane Microarrays with a Squeegee-based Assembly Method

스퀴지 기반의 조립 방법과 생체막 마이크로 어레이의 형성

Lipid bilayer membranes form the plasma membranes of cells and define the boundaries of subcellular organelles. In nature, these membranes are ...

Synthesis of Keratin-based Nanofiber for Biomedical Engineering

의 생명 공학에 대한 각질 기반의 나노 섬유의 합성

Electrospinning, due to its versatility and potential for applications in various fields, is being frequently used to fabricate nanofibers. Production of ...

Synthesis of Gold Nanoparticle Integrated Photo-responsive Liposomes and Measurement of Their Microbubble Cavitation upon Pulse Laser Excitation

펄스 레이저인가 전압에 따라 금 나노 입자 통합 사진 응답 리포좀과 그들의 마이크로 버블 공동 현상의 측정의 합성

Photo-responsive nanoparticles (NPs) have received considerable attention because of their potential in providing spatial, temporal, and dosage control ...

Synthesis of Hydrogels with Antifouling Properties As Membranes for Water Purification

물 정화를위한 막으로 방오 특성을 가진 히드로 겔의 합성

Hydrogels have been widely utilized to enhance the surface hydrophilicity of membranes for water purification, increasing the antifouling properties and ...

Synthesis of Functionalized 10-nm Polymer-coated Gold Particles for Endothelium Targeting and Drug Delivery

기능성된 10 nm 폴리머-코팅 된 금 입자 피 대상에 대 한 및 약물 전달의 합성

Gold nanoparticles (AuNPs) have been used extensively in medical research due to their size, biocompatibility, and modifiable surface. Specific targeting ...

Synthesis of Multi-walled Carbon Nanotubes Modified with Silver Nanoparticles and Evaluation of Their Antibacterial Activities and Cytotoxic Properties

나노 입자와 그들의 항균 활동 및 세포 독성 속성의 평가 수정 다중 벽 탄소 나노튜브의 합성

In this study, multi-walled carbon nanotubes (MWCNTs) were treated with an aqueous sulfuric acid solution to form an oxygen-based functional group. Silver ...