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Molecular Self-Assembly in Interfacial Chemistry
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Molecular Self-Assembly in Interfacial Chemistry

A special issue of Molecules (ISSN 1420-3049). This special issue belongs to the section "Physical Chemistry".

Deadline for manuscript submissions: 15 December 2024 | Viewed by 12449

Special Issue Editor

Dr. Guanying Li

E-Mail Website
Guest Editor
School of Basic Medical Sciences, Xi’an Jiaotong University, Shaanxi 710061, China
Interests: peptide assembly; metal-peptide hybrids; hydrogel; bio-nanointerfaces; tissue engineering; anticancer; biomineralization.

Special Issue Information

Dear Colleagues,

Molecular self-assembly—the spontaneous organization of molecules into supramolecular architectures of different sizes and shapes through non-covalent interactions—has also been recognized as a very promising strategy for the controlled bottom-up fabrication of sophisticated nanoarchitectures and the development of nanotechnologies. Lying at the boundary of chemistry, physics and biology, molecular self-assembly involves the understanding of the molecular mechanism at the interfaces and offers new insights to study the natural phenomenon and the living system. Compared to the solution-phase assembly, molecular self-assembly at the solid/solution/air interfaces or bio-interfaces has polytropic parameters that affect their assembling behaviors and lead to various material functionality.

This Special Issue devoted to “Molecular Self-Assembly in Interfacial Chemistry” aims to present recent advances to understand the molecular insights and highlight the strengths and weaknesses of molecular self-assembly on the surface. We warmly invite investigators to contribute original research articles or review articles covering topics of interest including, but not limiting to, the following:

  • Fabrication of molecular self-assemblies at the solid/solution/air or bio-interfaces.
  • Novel methodologies for analyzing and characterizing their interfacial properties;
  • Potential applications for interfacial molecular self-assembly in the fields of environment, energy, material science, molecular engineering, life science and health-related fields. 

Dr. Guanying Li
Guest Editor

Manuscript Submission Information

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Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Molecules is an international peer-reviewed open access semimonthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2700 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

  • molecular self-assembly
  • interfacial chemistry
  • bio-nanointerface
  • supramolecular materials
  • nanotechnology

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Published Papers (5 papers)

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Research

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13 pages, 6521 KiB  
Article
Molecular Self-Assembly and Adsorption Structure of 2,2′-Dipyrimidyl Disulfides on Au(111) Surfaces
by Dongjin Seo, Sicheon Seong, Haeri Kim, Hyun Su Oh, Jun Hyeong Lee, Hongki Kim, Yeon O Kim, Shoichi Maeda, Shunta Chikami, Tomohiro Hayashi and Jaegeun Noh
Molecules 2024, 29(4), 846; https://doi.org/10.3390/molecules29040846 - 14 Feb 2024
Cited by 2 | Viewed by 1179
Abstract
The effects of solution concentration and pH on the formation and surface structure of 2-pyrimidinethiolate (2PymS) self-assembled monolayers (SAMs) on Au(111) via the adsorption of 2,2′-dipyrimidyl disulfide (DPymDS) were examined using scanning tunneling microscopy (STM) and X-ray photoelectron spectroscopy (XPS). STM observations revealed [...] Read more.
The effects of solution concentration and pH on the formation and surface structure of 2-pyrimidinethiolate (2PymS) self-assembled monolayers (SAMs) on Au(111) via the adsorption of 2,2′-dipyrimidyl disulfide (DPymDS) were examined using scanning tunneling microscopy (STM) and X-ray photoelectron spectroscopy (XPS). STM observations revealed that the formation and structural order of 2PymS SAMs were markedly influenced by the solution concentration and pH. 2PymS SAMs formed in a 0.01 mM ethanol solution were mainly composed of a more uniform and ordered phase compared with those formed in 0.001 mM or 1 mM solutions. SAMs formed in a 0.01 mM solution at pH 2 were composed of a fully disordered phase with many irregular and bright aggregates, whereas SAMs formed at pH 7 had small ordered domains and many bright islands. As the solution pH increased from pH 7 to pH 12, the surface morphology of 2PymS SAMs remarkably changed from small ordered domains to large ordered domains, which can be described as a (4√2 × 3)R51° packing structure. XPS measurements clearly showed that the adsorption of DPymDS on Au(111) resulted in the formation of 2PymS (thiolate) SAMs via the cleavage of the disulfide (S-S) bond in DPymDS, and most N atoms in the pyrimidine rings existed in the deprotonated form. The results herein will provide a new insight into the molecular self-assembly behaviors and adsorption structures of DPymDS molecules on Au(111) depending on solution concentration and pH. Full article
(This article belongs to the Special Issue Molecular Self-Assembly in Interfacial Chemistry)
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9 pages, 2364 KiB  
Article
Engineering Two-Dimensional Multilevel Supramolecular Assemblies from a Bifunctional Ligand on Au(111)
by Rongyu Tang, Yang Song, Lizhi Zhang and Ziliang Shi
Molecules 2023, 28(13), 5116; https://doi.org/10.3390/molecules28135116 - 29 Jun 2023
Viewed by 1330
Abstract
Herein, we demonstrate the supramolecular assemblies from a bifunctional ligand on Au(111), towards engineering two-dimensional (metal-) organic multilevel nanostructures. The bifunctional ligand employed, including two Br atoms and one carboxylic terminal, offers multiple bonding motifs with different configurations and binding energies. These bonding [...] Read more.
Herein, we demonstrate the supramolecular assemblies from a bifunctional ligand on Au(111), towards engineering two-dimensional (metal-) organic multilevel nanostructures. The bifunctional ligand employed, including two Br atoms and one carboxylic terminal, offers multiple bonding motifs with different configurations and binding energies. These bonding motifs are highly self-selective and self-recognizable, and thus afford the formation of subunits that contribute to engineering multilevel self-assemblies. Our scanning tunneling microscopy experiments, in combination with the density functional theory calculations, revealed various hydrogen, halogen and alkali-carboxylate bonding motifs dictating the different levels of the assemblies. The multilevel assembly protocol based on a judicious choice of multiple bonding motifs guarantees a deliberate control of surface-confined (metal-) organic nanostructures. Our findings may present new opportunities for the fabrication of complex two-dimensional (metal-) organic nanostructures with potential in applications of functionally diverse nanomaterials. Full article
(This article belongs to the Special Issue Molecular Self-Assembly in Interfacial Chemistry)
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Review

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33 pages, 13782 KiB  
Review
Amino Acid-Derived Supramolecular Assembly and Soft Materials
by Shuaishuai Nie, He Zhao, Jiayi Sun, Qingtao Liu, Yongming Cui and Wen Li
Molecules 2024, 29(19), 4705; https://doi.org/10.3390/molecules29194705 - 4 Oct 2024
Viewed by 653
Abstract
Amino acids (AAs), serving as the primary monomer of peptides and proteins, are widely present in nature. Benefiting from their inherent advantages, such as chemical diversity, low cost, ease of modification, chirality, biosafety, and bio-absorbability, AAs have been extensively exploited to create self-assembled [...] Read more.
Amino acids (AAs), serving as the primary monomer of peptides and proteins, are widely present in nature. Benefiting from their inherent advantages, such as chemical diversity, low cost, ease of modification, chirality, biosafety, and bio-absorbability, AAs have been extensively exploited to create self-assembled nanostructures and supramolecular soft materials. In this review article, we systematically describe the recent progress regarding amino acid-derived assembly and functional soft materials. A brief background and several classified assemblies of AAs and their derivatives (chemically modified AAs) are summarized. The key non-covalent interactions to drive the assembly of AAs are emphasized based on the reported systems of self-assembled and co-assembled AAs. We discuss the molecular design of AAs and the general rules behind the hierarchical nanostructures. The resulting soft materials with interesting properties and potential applications are demonstrated. The conclusion and remarks on AA-based supramolecular assemblies are also presented from the viewpoint of chemistry, materials, and bio-applications. Full article
(This article belongs to the Special Issue Molecular Self-Assembly in Interfacial Chemistry)
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34 pages, 8326 KiB  
Review
Liquid–Liquid and Liquid–Solid Interfacial Nanoarchitectonics
by Katsuhiko Ariga
Molecules 2024, 29(13), 3168; https://doi.org/10.3390/molecules29133168 - 3 Jul 2024
Cited by 2 | Viewed by 1261
Abstract
Nanoscale science is becoming increasingly important and prominent, and further development will necessitate integration with other material chemistries. In other words, it involves the construction of a methodology to build up materials based on nanoscale knowledge. This is also the beginning of the [...] Read more.
Nanoscale science is becoming increasingly important and prominent, and further development will necessitate integration with other material chemistries. In other words, it involves the construction of a methodology to build up materials based on nanoscale knowledge. This is also the beginning of the concept of post-nanotechnology. This role belongs to nanoarchitectonics, which has been rapidly developing in recent years. However, the scope of application of nanoarchitectonics is wide, and it is somewhat difficult to compile everything. Therefore, this review article will introduce the concepts of liquid and interface, which are the keywords for the organization of functional material systems in biological systems. The target interfaces are liquid–liquid interface, liquid–solid interface, and so on. Recent examples are summarized under the categories of molecular assembly, metal-organic framework and covalent organic framework, and living cell. In addition, the latest research on the liquid interfacial nanoarchitectonics of organic semiconductor film is also discussed. The final conclusive section summarizes these features and discusses the necessary components for the development of liquid interfacial nanoarchitectonics. Full article
(This article belongs to the Special Issue Molecular Self-Assembly in Interfacial Chemistry)
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18 pages, 3546 KiB  
Review
Hemostasis Strategies and Recent Advances in Nanomaterials for Hemostasis
by Jian Du, Jingzhong Wang, Tao Xu, Hai Yao, Lili Yu and Da Huang
Molecules 2023, 28(13), 5264; https://doi.org/10.3390/molecules28135264 - 7 Jul 2023
Cited by 17 | Viewed by 7373
Abstract
The development of materials that effectively stop bleeding and prevent wound adhesion is essential in both military and medical fields. However, traditional hemostasis methods, such as cautery, tourniquets, and gauze, have limitations. In recent years, new nanomaterials have gained popularity in medical and [...] Read more.
The development of materials that effectively stop bleeding and prevent wound adhesion is essential in both military and medical fields. However, traditional hemostasis methods, such as cautery, tourniquets, and gauze, have limitations. In recent years, new nanomaterials have gained popularity in medical and health fields due to their unique microstructural advantages. Compared to traditional materials, nanomaterials offer better adhesion, versatility, and improved bioavailability of traditional medicines. Nanomaterials also possess advantages such as a high degree and stability, self-degradation, fewer side effects, and improved wound healing, which make them ideal for the development of new hemostatic materials. Our review provides an overview of the currently used hemostatic strategies and materials, followed by a review of the cutting-edge nanomaterials for hemostasis, including nanoparticles and nanocomposite hydrogels. The paper also briefly describes the challenges faced by the application of nanomaterials for hemostasis and the prospects for their future development. Full article
(This article belongs to the Special Issue Molecular Self-Assembly in Interfacial Chemistry)
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