通过离子自我组装进行自我组织的功能材料:氨酸 H-和J-聚合物在合成烯酸纳米管上
Giovanna De Luca1, Andrea Romeo, Valentina Villari
1Dipartimento di Chimica Inorganica, Chimica Analitica e Chimica Fisica, and CIRCMSB, Università di Messina, Salita Sperone 31, 98166, Vill. S. Agata, Messina, Italy.
Journal of the American Chemical Society
|May 2, 2009
概括
合成化纳米管形成独特的H型和J型氨酸聚合物. 这些纳米混合材料表现出独特的光学特性,显示出纳米技术应用的前景.
科学领域:
- 材料科学 材料科学 材料科学
- 纳米技术纳米技术
- 超分子化学 超分子化学
背景情况:
- 晶纳米管是正电荷的无机材料.
- 阳离子氨酸可以形成不同类型的聚合物 (H型和J型).
- 控制聚合物形成是调整材料性质的关键.
研究的目的:
- 为了研究阳离子氨酸氨酸在合成青烯纳米管上的自我组装.
- 描述由此产生的纳米混合材料的光学特性.
- 探索这些材料在纳米技术中的潜力.
主要方法:
- 结晶纳米管的合成.
- 氨酸聚合物的光谱表征 (例如,UV-Vis,光).
- 分析纳米混合结构的显微镜技术.
主要成果:
- 晶纳米管有效地指导了H型和J型氨酸聚合物的形成.
- H型和J型聚合物显示出明显不同的光学吸收和发射光谱.
- 这些纳米混合材料展示了基于氨酸聚合状态的可调节光学特性.
结论:
- 带正电荷的状纳米管作为受控氨酸聚合的支架.
- H-和J-聚合物的独特光学特性可以用于纳米技术应用.
- 这项工作突出了无机-纳米管-有机染料超分子系统的潜力.
相关概念视频
Assembly of Cytoskeletal Filaments
Cytoskeletal filaments are polymeric forms of smaller protein subunits. However, individual cytoskeletal filaments may easily disassemble or associate with other similar filaments to form rigid structures. Microfilaments, made of actin monomers, rely on actin-binding proteins to form bundles and create networks of individual actin filaments. Microtubules rely on microtubule-associated proteins (MAPs) to form sturdy cylindrical structures. However, the proteins involved in forming complex...
Ionic Crystal Structures
Ionic crystals consist of two or more different kinds of ions that usually have different sizes. The packing of these ions into a crystal structure is more complex than the packing of metal atoms that are the same size.
Most monatomic ions behave as charged spheres, and their attraction for ions of opposite charge is the same in every direction. Consequently, stable structures for ionic compounds result (1) when ions of one charge are surrounded by as many ions as possible of the opposite...
Most monatomic ions behave as charged spheres, and their attraction for ions of opposite charge is the same in every direction. Consequently, stable structures for ionic compounds result (1) when ions of one charge are surrounded by as many ions as possible of the opposite...


