Supramolecular self-assembly behaviors on solid substrates have been widely investigated in the last few decades. Owing to the complexity of interfacial assembly systems, the precise regulation of supramolecular nanostructures is still challenging and waits to be solved. The supramolecular nanostructures are governed by non-covalent bonds, so they can be disrupted and influenced by an external environment. In this review, the dynamic supramolecular nanostructures that are mediated by external stimuli containing guest species, light irradiation, temperature and electric field are discussed in detail. The research studies mentioned in this article are all accomplished by STM, and the effects of these external stimuli on the assembled nanostructures have been elucidated exhaustively here.
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http://dx.doi.org/10.1039/c9sm01847f | DOI Listing |
ACS Mater Lett
January 2025
Air Force Research Laboratory, Materials and Manufacturing Directorate, Wright-Patterson AFB, Ohio 45433, United States.
Photocurable self-healing elastomers are promising candidates for producing complex soft devices that can mend damage. However, the practicality of these materials is limited by reliance on external stimuli, custom synthesis, manual realignment, and multihour healing cycles. This paper introduces a tough 3D-printable hybrid acrylate/thiol-ene elastomer (prepared with commercially available precursors) that exhibits nearly instantaneous damage repair in the absence of external stimuli.
View Article and Find Full Text PDFProg Neuropsychopharmacol Biol Psychiatry
January 2025
Shanghai Engineering Research Center of Tooth Restoration and Regeneration & Tongji Research Institute of Stomatology & Department of Prosthodontics, Stomatological Hospital and Dental School, Tongji University, Shanghai 200072, China. Electronic address:
Eating behavior stands as a fundamental determinant of animal survival and growth, intricately regulated by an amalgamation of internal and external stimuli. Coordinated movements of facial muscles and the mandible orchestrate prey capture and food processing, propelled by the allure of taste and rewarding food properties. Conversely, satiation, pain, aversion, negative emotion or perceived threats can precipitate the cessation or avoidance of eating activities.
View Article and Find Full Text PDFCell Rep
January 2025
Institute of Molecular Biology, Academia Sinica, Taipei, Taiwan. Electronic address:
Proteasomes generate antigenic peptides presented on cell surfaces-a process that, in neuroglia, is highly responsive to external stimuli. However, the function of the self-antigens presented by CNS parenchymal cells remains unclear. Here, we report that the fidelity of neuroglial self-antigens is crucial to suppress encephalitogenic T cell responses by elevating regulatory T (Treg) cell populations.
View Article and Find Full Text PDFInt J Clin Pediatr Dent
November 2024
Private Practitioner, Gujarat, India.
Background: When it comes to reducing children's fear, anxiety, and discomfort during dental procedures, substantial local anesthetic delivery promotes adequate intervention. In the dental operatory, local anesthetic injections are the most anticipated or feared stimuli. The application of topical anesthetics, cryotherapy, and transcutaneous electrical nerve stimulation (TENS) to the oral mucosa prior to local anesthetic injections can alter pain perception in children.
View Article and Find Full Text PDFChem Sci
December 2024
Key Laboratory of Precision and Intelligent Chemistry, University of Science and Technology of China Hefei Anhui 230026 China
The packing of organic molecular crystals is often dominated by weak non-covalent interactions, making their rearrangement under external stimuli challenging to understand. We investigate a pressure-induced single-crystal-to-single-crystal (SCSC) transformation between two polymorphs of 2,4,5-triiodo-1-imidazole using machine learning potentials. This process involves the rearrangement of halogen and hydrogen bonds combined with proton transfer within a complex solid-state system.
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