Name: self-assembly of complex two-dimensional shapes from single-stranded dna tiles
Uploaded: 2015-05-08T13:00:00
Description: Watch this Scientific Journal Video about Self-assembly of Complex Two-dimensional Shapes from Single-stranded DNA Tiles at JoVE.com

이 작품은 해군 연구소 젊은 탐정 프로그램 상 N000141110914, 해군 연구비 N000141010827의 사무실, NSF 경력 상 CCF1054898, NIH 감독의 새로운 혁신 상 1DP2OD007292의 오피스와 (PY에) 생물학적 영감 공학 학부 시작 기금 위스 연구소에 의해 투자되었다 칭화 - 베이징 (BW에) 생명 과학의 시작 기금 센터.

1. DNA 시퀀스 디자인 <ol><li> 28T 캔버스 × 24H를 만들 이중 나선, 각각의 이중 나선을위한 상하 나선의 길이의 수, 교차 패턴을 지정하여 SST-한정된 구조를 설계 UNIQUIMER 소프트웨어 (27)를 사용한다. 이러한 매개 변수를 정의한 후, 전체 구조 (스트랜드 조성물 및 상보성 배열)은 그래픽 프로그램에서 도시된다. </li><li> 보완 장치 및 추가 요구 사항 (있는 경우)를 충족시킬 수있는 특정 구조의 ...

<ol>
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구조 형성 공정에서, 자기 조립 DNA 나노 구조에 DNA 가닥 혼합물 (예., 15 mM)을 마그네슘 양이온의 적절한 농도를 유지하는 것이 중요하다. 유사하게, 아가로 오스 겔 특성화 / 정제 단계에서, 그것은 적절한 마그네슘 양이온 농도를 유지하는 것이 중요하다 (예., 10 mM)을 겔 전기 영동시 DNA 나노 구조를 유지하기 위해 겔 주행 버퍼. 28T 사각형 구조 × 24H를 들어, 우리는 다른 마그네슘 ...

5,8,10 - - 이전 핵산 자기 조립 작업 1-25는 DNA의 2를 포함하여 복잡한 구조의 다양한의 성공적인 건설을 주도하고있다 13,17,23 또는 RNA 7,22주기 3,4,7, (22)와 알고리즘 5 개의 차원 격자, 리본 (10, 12) 및 튜브 4,12,13, 3D 크리스탈 (17), 다면체 (11)과 유한은, 2D는 7,8 모양. 16, 18 - - 21, 25 하나의 발판 가닥이 복잡한 형상 9,14를 형성하기 위해 많은 짧은 보조 스테이플 가닥으로 접어된다 특히 효과적인 방법은 DNA 종이 접기를 스캐 폴딩된다. 최근 우리는 단일 가닥 타일 (SST)를 사용하여 소정 형상으로 2D 이산 나노 구조체를 구성하기위한 방법을보고하고, DNA 접기 (26)에 필적하는 복잡성과 구조를 보여 주었다. 이 articl전자는 우리의 초기 작업 (26)의 적응하고 정확하게 규정 된 크기 (폭과 길이) 및 형태학 정교한 유한 2D 형태로 개별적으로 어드레스 해수면 온도를 배치하기위한 프로토콜을 자세히 설명합니다. SST 방법의 하나의 중요한 장점은 모듈 방식입니다. 구조물의 각 성분은 SST 어셈블리 모듈 공법 유닛으로서 기능하고,이 해수면 온도의 상이한 서브 세트들은 별개의 형상을 생성한다. 따라서, 우리는 짧은, 합성 DNA 가닥에서 규정 된 크기와 모양을 가진 나노 구조를 구성하는 일반적인 플랫폼을 설립했다. 해수면 온도는 네 가지 영역, 각 10 또는 11 뉴클레오티드 (그림 1A)를 포함한다. 해수면 온도는 병렬 나선이 교차 결합에 의해 함께 개최하는 DNA 격자를 생성하도록 결합한다. 각각의 크로스 오버 영역 (2) 및 (3) 인산 시각적 명확성을 위해 도면에 인위적으로 연신 사이 포스페이트이다. 크로스 오버는 &lt;(떨어져 두 개의 나선형 회전 (21 기지)를 이격되어있다강한&gt; 그림 1b). 복합 직사각형은 나선 및 코일 권수 그들의 치수로 지칭된다. 예를 들어, 직사각형 여섯 나선 넓고 여덟 헬리컬는 8T 구형 × 6H로서 참조되는 긴 변있다. 해수면 온도가 탈락 추가하거나 임의의 형상 및 크기 (도 1C)의 구조를 만들 재 배열 될 수있다. 예를 들면, 직사각형의 설계는 원하는 길이 및 반경 (도 1D)와 튜브로 압연 될 수있다. 또한, 직사각형 SST 격자는 SST 픽셀로 구성된 분자 캔버스, 7 내지하여 각 3 나노 미터로 볼 수 있습니다. 본 연구에서 우리는 (310)는 전체 길이 내부 해수면 온도의 분자 캔버스를 사용하여, 좌우의 경계를 구성하는 24 전장 해수면 온도, 및 상부 및 하부 경계를 형성하는 28 반장 해수면 온도. 캔버스 크로스 오버로 연결된 24 번 나선을 가지고 있으며, 각각의 나선 (28) 나선형 회전 (294 기지)를 포함하므로이라고28T 직사각형 캔버스 × 24H. 28T 캔버스 × 24H는 M13 파지 지지체에서 만든 DNA 접기 구조와 유사한 분자량을 갖는다.

<table border="0" cellpadding="0" cellspacing="0" width="919">
	<tbody>
		<tr height="42">
			<td height="42" style="height:42px;width:216px;">Name of Material/ Equipment</td>
			<td style="width:183px;">Company</td>
			<td style="width:119px;">Catalog Number</td>
			<td style="width:401px;">Comments/Description</td>
		</tr>
		<tr height="42">
			<td height="42" style="height:42px;width:216px;">DNA Strands&#160;</td>
			<td style="width:183px;">Integrated DNA Technology</td>
			<td style="width:119px;"></td>
			<td>Section 3.1</td>
		</tr>
		<tr height="21">
			<td height="21" style="height:21px;width:216px;">SYBR Safe DNA gel stain</td>
			<td style="width:183px;">Invitrogen</td>
			<td style="width:119px;">S33102</td>
			<td>Section 3.4.2</td>
		</tr>
		<tr height="42">
			<td height="42" style="height:42px;width:216px;">Freeze&#39;N Squeeze DNA Gel Extraction Spin Columns</td>
			<td style="width:183px;">BIO-RAD</td>
			<td style="width:119px;">731-6166</td>
			<td>Section 3.6</td>
		</tr>
		<tr height="42">
			<td height="42" style="height:42px;width:216px;">Bruker&#39;s Sharp Nitride Lever Probes</td>
			<td style="width:183px;">Bruker AFM Probes</td>
			<td style="width:119px;">SNL10</td>
			<td>Section 4.3</td>
		</tr>
		<tr height="42">
			<td height="42" style="height:42px;width:216px;">Safe Imager 2.0 Blue Light Transilluminator</td>
			<td style="width:183px;">Invitrogen</td>
			<td style="width:119px;">G6600</td>
			<td>Section 3.6</td>
		</tr>
		<tr height="21">
			<td height="21" style="height:21px;width:216px;">Centrifuge 5430R</td>
			<td style="width:183px;">Eppendorf</td>
			<td style="width:119px;">5428 000.414</td>
			<td>Section 3.6</td>
		</tr>
		<tr height="42">
			<td height="42" style="height:42px;width:216px;">Transmission Electron Microscope&#160;</td>
			<td style="width:183px;">Jeol</td>
			<td style="width:119px;">Jem 1400</td>
			<td>Section 7.4</td>
		</tr>
		<tr height="21">
			<td height="21" style="height:21px;width:216px;">Multimode 8</td>
			<td style="width:183px;">Veeco</td>
			<td style="width:119px;"></td>
			<td>Section 4</td>
		</tr>
		<tr height="42">
			<td height="42" style="height:42px;width:216px;">Typhoon FLA 9000 Laser Scanner</td>
			<td style="width:183px;">GE Heathcare Life Sciences</td>
			<td style="width:119px;">28-9558-08</td>
			<td>Section 3.5</td>
		</tr>
		<tr height="21">
			<td height="21" style="height:21px;width:216px;">Ultrapure Distilled water</td>
			<td style="width:183px;">Invitrogen</td>
			<td style="width:119px;">10977-023</td>
			<td>Section 3.7.1</td>
		</tr>
		<tr height="21">
			<td height="21" style="height:21px;width:216px;">Mica disk</td>
			<td style="width:183px;">SPI Supplies</td>
			<td style="width:119px;">12001-26-2</td>
			<td>Section 4.1</td>
		</tr>
		<tr height="21">
			<td height="21" style="height:21px;width:216px;">Steel mounting disk</td>
			<td style="width:183px;">Ted Pella, Inc.</td>
			<td style="width:119px;">16218</td>
			<td>Section 4.1</td>
		</tr>
		<tr height="42">
			<td height="42" style="height:42px;width:216px;">carbon coated copper grid for TEM</td>
			<td style="width:183px;">Electron Microscopy Sciences</td>
			<td style="width:119px;">FCF400-Cu</td>
			<td>Section 7.2</td>
		</tr>
		<tr height="21">
			<td height="21" style="height:21px;width:216px;">tweezers</td>
			<td style="width:183px;">Dumont</td>
			<td>0203-N5AC-PO</td>
			<td>Section 7.31</td>
		</tr>
		<tr height="21">
			<td height="21" style="height:21px;width:216px;">glow discharge system</td>
			<td style="width:183px;">Quorum Technologies</td>
			<td style="width:119px;">K100X</td>
			<td>Section 7.2</td>
		</tr>
		<tr height="42">
			<td height="42" style="height:42px;width:216px;">DNA Engine Tetrad 2 Peltier Thermal Cycler</td>
			<td style="width:183px;">BIO-RAD</td>
			<td>PTC&#8211;0240G</td>
			<td>Section 3.3</td>
		</tr>
		<tr height="42">
			<td height="42" style="height:42px;width:216px;">Owl Easycast B2 Mini Gel Electrophoresis Systems</td>
			<td style="width:183px;">ThermoScientific</td>
			<td>B2</td>
			<td>Section 3.4.3</td>
		</tr>
		<tr height="21">
			<td height="21" style="height:21px;width:216px;">Seekam LE Agarose 500G</td>
			<td style="width:183px;">Lonza</td>
			<td style="width:119px;">50004</td>
			<td>Section 3.4.1</td>
		</tr>
		<tr height="63">
			<td height="63" style="height:63px;width:216px;">GeneRuler 1kb Plus DNA Ladder, Ready-To-Use 75-20000bp</td>
			<td style="width:183px;">ThermoScientific</td>
			<td style="width:119px;">SM1333</td>
			<td>Section 3.4.4</td>
		</tr>
		<tr height="42">
			<td height="42" style="height:42px;width:216px;">Nanodrop 2000c UV-vis Spectrophotometer</td>
			<td style="width:183px;">ThermoScientific</td>
			<td style="width:119px;"></td>
			<td>Section 3.7</td>
		</tr>
		<tr height="21">
			<td height="21" style="height:21px;width:216px;">0.2 um filter</td>
			<td style="width:183px;">Corning Inc.</td>
			<td style="width:119px;">431219</td>
			<td>Section 7.1.2</td>
		</tr>
	</tbody>
</table>

self-assembly of complex two-dimensional shapes from single-stranded dna tiles

Current methods in DNA nano-architecture have successfully engineered a variety of 2D and 3D structures using principles of self-assembly. In this article, we describe detailed protocols on how to fabricate sophisticated 2D shapes through the self-assembly of uniquely addressable single-stranded DNA tiles which act as molecular pixels on a molecular canvas. Each single-stranded tile (SST) is a 42-nucleotide DNA strand composed of four concatenated modular domains which bind to four neighbors during self-assembly. The molecular canvas is a rectangle structure self-assembled from SSTs. A prescribed complex 2D shape is formed by selecting the constituent molecular pixels (SSTs) from a 310-pixel molecular canvas and then subjecting the corresponding strands to one-pot annealing. Due to the modular nature of the SST approach we demonstrate the scalability, versatility and robustness of this method. Compared with alternative methods, the SST method enables a wider selection of information polymers and sequences through the use of de novo designed and synthesized short DNA strands.

해수면 온도 (도 1)의 자기 조립은도 2에 도시 된 바와 같이 다른 해수면 온도에 대한 DNA 서열은 스트렙 라벨링 있도록 최적화 / 변형 될 수있다., 28T 구형 × 24H을 얻었다 (도 3 및 4)의 변형 것 직사각형 튜브 (도 5), 튜브 및 다양한 크기의 사각형 (도 10)을 형성 해수면 온도의 프로그래머블 자기 조립 및 분자 캔버스 (?...

Watch this Scientific Journal Video about Self-assembly of Complex Two-dimensional Shapes from Single-stranded DNA Tiles at JoVE.com

Self-assembly of Complex Two-dimensional Shapes from Single-stranded DNA Tiles

DNA tiling is an effective approach to make programmable nanostructures. We describe the protocols to construct complex two-dimensional shapes by the self-assembly of single-stranded DNA tiles.

단일 가닥 DNA 타일에서 단지 두 차원 모양의 자기 조립 (self-assembly)

Current methods in DNA nano-architecture have successfully engineered a variety of 2D and 3D structures using principles of self-assembly. In this ...

Research

JoVE Journal

Chemistry

Origami Inspired Self-assembly of Patterned and Reconfigurable Particles

종이 접기 고취 패턴 및 재구성 입자의 자기 조립

There are numerous techniques such as photolithography, electron-beam lithography and soft-lithography that can be used to precisely pattern two ...

연구

화학

Formation of Ordered Biomolecular Structures by the Self-assembly of Short Peptides

짧은 펩타이드의 자기 조립에 의해 주문 생체 고분자 구조의 형성

In nature, complex functional structures are formed by the self-assembly of biomolecules under mild conditions. Understanding the forces that control ...

Folding and Characterization of a Bio-responsive Robot from DNA Origami

DNA 접기에서 바이오 응답 로봇의 폴딩 및 특성화

The DNA nanorobot is a hollow hexagonal nanometric device, designed to open in response to specific stimuli and present cargo sequestered inside. Both ...

Grafting Multiwalled Carbon Nanotubes with Polystyrene to Enable Self-Assembly and Anisotropic Patchiness

자기 집합에 있도록 폴리스 티 렌과 이방성 Patchiness Multiwalled 탄소 나노튜브를 접목

We demonstrate a straightforward protocol to graft pristine multiwalled carbon nanotubes (MWCNTs) with polystyrene (PS) chains at the sidewalls through a ...

Liquid-cell Transmission Electron Microscopy for Tracking Self-assembly of Nanoparticles

나노 입자의 자기 조립 추적에 대 한 액체 셀 전송 전자 현미경 검사 법

Drying a nanoparticle dispersion is a versatile way to create self-assembled structures of nanoparticles, but the mechanism of this process is not fully ...

Fabrication of Spherical and Worm-shaped Micellar Nanocrystals by Combining Electrospray, Self-assembly, and Solvent-based Structure Control

구형 및 벌레 모양의 Micellar 나노 자기 조립, 분무, 결합 하 여 용 매 기반 구조 제어의 제조

Micellar nanocrystals (micelles with encapsulated nanocrystals) have become an emerging major class of nanobiomaterials. We describe a method of ...

Negative Additive Manufacturing of Complex Shaped Boron Carbides

복잡 한 모양의 붕 소 합금의 첨가제 제조 제외

Boron carbide (B4C) is one of the hardest materials in existence. However, this attractive property also limits its machineability into complex shapes for ...

Molten-Salt Synthesis of Complex Metal Oxide Nanoparticles

녹은 소금 복합 금속 산화물 나노 입자의 합성

The development of feasible synthesis methods is critical for the successful exploration of novel properties and potential applications of nanomaterials. ...

Exfoliation and Analysis of Large-area, Air-Sensitive Two-Dimensional Materials

각 질 제거 및 큰 지역의 분석 공기 과민 한 2 차원 재료

We describe methods for producing and analyzing large, thin flakes of air-sensitive two-dimensional materials. Thin flakes of layered or van der Waals ...

Stable DNA Motifs, 1D and 2D Nanostructures Constructed from Small Circular DNA Molecules

안정적인 DNA 모티프, 1d와 2D Nanostructures 작은 원형 DNA 분자에서 건설

This article presents a detailed protocol for synthesis of small circular DNA molecules, annealing of circular DNA motifs, and construction of 1D and 2D ...