Helicity Manipulation of a Double-Paddled Binaphthyl in a Two-Dimensional Matrix Field at the Air–Water Interface

2021

ANAL. SCI.

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For materials development with high-level structural regulations, the emerging concept of nanoarchitectonics has been proposed. Analytical sciences, including sensing/detection, sensors, and related device construction, are active targets of the nanoarchitectonics approach. This review article focuses on the two features of interface and nanostructures are especially focused to discuss nanoarchitectonics for analytical science. Especially, two selected topics, (i) analyses on molecular sensing at interfaces and (ii) sensors using self-assembled supramolecular nanostructures, are exemplified in this review article. In addition to recent general examples, specific molecular recognition at the air-water interface and fabrication of sensing materials upon self-assembly of fullerene units are discussed. Descriptions of these examples indicate that nanoarchitectonics and analytical science share common benefits, and therefore, developments in both research fields should lead to synergies.

Section: •3 Advanced Possibilities Of Interfacial Nanoarchitectonicsmentioning

confidence: 99%

Nanoarchitectonics for Analytical Science at Interfaces and with Supramolecular Nanostructures

2021

ANAL. SCI.

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“…Conformational changes of another binaphthyl molecules were also investigated at a wider range of medium with mechanical properties including solution, gold surface, [ 95 ] rigid monolayer, and soft monolayer. [ 96 ] The used bisbinaphthyldurene molecule possesses two binaphthyl groups connected to a central durene. Upon computational estimation, the bisbinaphthyldurene adopts mainly anti and syn forms as well as flat conformer at surface environments.…”

Section: Mechanical Control Of Molecular System At Dynamic Interface ...mentioning

confidence: 99%

Mechano‐Nanoarchitectonics: Design and Function

2022

Small Methods

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Mechanical stimuli have rather ambiguous and less‐specific features among various physical stimuli, but most materials exhibit a certain level of responses upon mechanical inputs. Unexplored sciences remain in mechanical responding systems as one of the frontiers of materials science. Nanoarchitectonics approaches for mechanically responding materials are discussed as mechano‐nanoarchitectonics in this review article. Recent approaches on molecular and materials systems with mechanical response capabilities are first exemplified with two viewpoints: i) mechanical control of supramolecular assemblies and materials and ii) mechanical control and evaluation of atom/molecular level structures. In the following sections, special attentions on interfacial environments for mechano‐nanoarchitectonics are emphasized. The section entitled iii) Mechanical Control of Molecular System at Dynamic Interface describes coupling of macroscopic mechanical forces and molecular‐level phenomena. Delicate mechanical forces can be applied to functional molecules embedded at the air–water interface where operation of molecular machines and tuning of molecular receptors upon macroscopic mechanical actions are discussed. Finally, the important role of the interfacial media are further extended to the control of living cells as described in the section entitled iv) Mechanical Control of Biosystems. Pioneering approaches on cell fate regulations at liquid–liquid interfaces are discussed in addition to well‐known mechanobiology.

“…Macroscopic motions such as sub-meter-level compression and expansion of Langmuir monolayer in lateral direction can be coupled with molecular-level functions within nanometer-level thickness at the air-water interface. Regulation of molecular machines [136] by hand-like macroscopic mechanical motions such as reversible guest capture [137,138], enantio-selective amino acid discrimination [139], faint tuning of nucleic acid base recognition [140], control of fluorescence resonance energy transfer [141], molecular rotor rotation [142,143], molecular pliers operation [144,145], molecular flapping [146], and nanocar actions [147] have been actually demonstrated. As depicted in Figure 15, faint orientational changes of double-paddled binuclear Pt II complexes through macroscopic mechanical compression of their monolayer at the air-water interface [148].…”

Section: Langmuir-blodgett Nanoarchitectonicsmentioning

confidence: 99%

Progress in Molecular Nanoarchitectonics and Materials Nanoarchitectonics

2021

Molecules

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Although various synthetic methodologies including organic synthesis, polymer chemistry, and materials science are the main contributors to the production of functional materials, the importance of regulation of nanoscale structures for better performance has become clear with recent science and technology developments. Therefore, a new research paradigm to produce functional material systems from nanoscale units has to be created as an advancement of nanoscale science. This task is assigned to an emerging concept, nanoarchitectonics, which aims to produce functional materials and functional structures from nanoscale unit components. This can be done through combining nanotechnology with the other research fields such as organic chemistry, supramolecular chemistry, materials science, and bio-related science. In this review article, the basic-level of nanoarchitectonics is first presented with atom/molecular-level structure formations and conversions from molecular units to functional materials. Then, two typical application-oriented nanoarchitectonics efforts in energy-oriented applications and bio-related applications are discussed. Finally, future directions of the molecular and materials nanoarchitectonics concepts for advancement of functional nanomaterials are briefly discussed.