Supramolecular Chiral Nanoarchitectonics

Abstract

of well-considered materials designs. [5] Small structural differences in component molecules are often capable of producing materials with totally different properties through organic syntheses, [6] supramolecular chemistry, [7] and materials processing. [8] Therefore, molecular designs for materials production can be regarded as the most important issue in science and technology in current society. Amongst the many possibilities in molecular design for materials production, exploration of molecular functions and material properties on the basis of chirality controls would be a scientifically elegant approach. With identical elemental compositions and functional groups, but different configurations of these identical groups, functions such as chiroptical properties and chiral separations can be created. [9] Another important fact for chiral controls in molecular and materials science is the unavoidable deep relationship of chiral substances with biological activities. [10] Biomolecules are basically made of chiral components such as amino acids and saccharides. Therefore, molecular designs for biomedical drugs and bioactive materials must be produced upon critical control of their chirality. Due to the scientifically elegant approaches and biological importance, molecular sciences and materials technologies incorporating chirality continuously attract attention of scientists ranging from the fundamentals of the chirality of molecules and materials to bio-related applications. These research efforts spread into a wide range of scientific fields including basic physical chemistry, [11] chirality-controlled catalysis and synthesis, [12] chiral materials, [13] analyses of chiral structures, [14] chiral recognition, [15] chiral separation, [16] chiral plasmons and optics, [17] chiral drugs, [18] and biomedical related chiral sciences. [19] Among the broad interests of chirality research, the recent hot trends of chirality related sciences are probably studies on chirality-based supramolecular chemistry and materials science upon the self-assembly of chiral molecular components [20] and achiral building blocks. [21] Enhancement of chiral effects and the creation of chirality are sometimes results of supramolecular organizations with chiral molecular units and even with achiral components. These systems are regarded as elegant examples of the emerging concept of nanoarchitectonics (Figure 1), [22] because control of simple molecular configurations can lead to the creation of such a wide variety of functional materials. The nanoarchitectonics concept was originally proposed by Aono and co-workers [23] as methodology to create functional materials from nanosized components through the combined Exploration of molecular functions and material properties based on the control of chirality would be a scientifically elegant approach. Here, the fabrication and function of chiral-featured materials from both chiral and achiral components using a supramolecular nanoarchitectonics concept are discussed. The contents are classified...

l-cysteine-modified chiral gold nanoparticles promote periodontal tissue regeneration

“…In materials science, the exploration of the material properties and molecular functions on the basis of chirality controls is a scientifically elegant approach [ 9 ]. These explorations include chiral materials [ 10 ], analyses of chiral structures [ 11 ], basic physical chemistry [ 12 ], chiral plasmons and optics [ 13 ], chirality-controlled catalysis and synthesis [ 14 ], chiral recognition [ 15 ], and chiral separation [ 9 , 16 ]. In medical technology, plasmon-enhanced chiral signals may have immense potential in the detection and treatment of diseases [ 17 ].…”

Nanoarchitectonics: bottom-up creation of functional materials and systems

“…Because the features of the nanoarchitectonics concept are general and applicable to most materials systems, this concept can be applied to many research targets. In fact, the nanoarchitectonics concept has already been applied in various fields, including materials production [12,13], structural fabrication [14,15], sensing [16,17], catalysis [18], energy [19], environmental [20], devices [21,22], and bio-related [23,24] applications.…”

Nanofabrication Techniques in Large-Area Molecular Electronic Devices

“…Nanoarchitectonics represents today a promising and powerful strategy in which the LB method yields a perfectly molecular organization within a 2D plane [295,296]. Therefore, because of the wide generality of the nanoarchitectonics concept, LB films can also be applied to a wide range of research fields with practical importance, such as materials production [297][298][299], sensing [300,301], catalysis [302,303], device [304,305], energy [306][307][308][309][310], or biological/biomedical applications [311][312][313][314], or even in the fabrication of smart textile-based sensors (TEX sensors) [311]. These studies underscore the almost limitless possibilities of the LB technique to fabricate well-ordered 2D films of a wide range of materials.…”