The following contributions describe various research activities of the Department of Chemistry, University of Basel in the area of nanochemistry and supramolecular chemistry.
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Surface-enhanced Raman spectroscopy: a half-century historical perspective.
Chem Soc Rev
December 2024
State Key Laboratory of Physical Chemistry of Solid Surfaces, College of Chemistry and Chemical Engineering, School of Electronic Science and Engineering, College of Environment and Ecology, State Key Laboratory of Marine Environmental Science, Department of Physics, iChEM, IKKEM, Xiamen University, Xiamen 361005, China.
Surface-enhanced Raman spectroscopy (SERS) has evolved significantly over fifty years into a powerful analytical technique. This review aims to achieve five main goals. (1) Providing a comprehensive history of SERS's discovery, its experimental and theoretical foundations, its connections to advances in nanoscience and plasmonics, and highlighting collective contributions of key pioneers.
View Article and Find Full Text PDFNetworked Multicomponent Ensemble as AND Gate with FRET Output.
Chemistry
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Center of Micro- and Nanochemistry and (Bio)Technology, Organische Chemie I, School of Science and Engineering, University of Siegen, Adolf-Reichwein-Str. 2, D-57068, Siegen, Germany.
A networked supramolecular logic AND gate system is accomplished using precise chemical communication within a multicomponent ensemble via metal ion-driven self-sorting processes. The cybernetic AND gate is composed of a copper(I)-loaded nanoswitch, an aza-crown ether and a rhodamine receptor. The modus operandi of the AND gate, from state (0,0), was induced with stoichiometric amounts of two inputs (IN-1=Hg, IN-2=Li) generating copper(I) ions as output only in state (1,1).
View Article and Find Full Text PDFSwiss roll nanoarrays for chiral plasmonic photocatalysis.
J Colloid Interface Sci
January 2025
State Key Laboratory of Supramolecular Structure and Materials, College of Chemistry, Jilin University, Changchun 130012, PR China. Electronic address:
Manipulating the chirality at nanoscale has drawn great attention among scientists, considering its pivotal role in various applications of current interest, including nano-optics, biomedicine, and photocatalysis. In this work, we delve into this arena by fabricating chiral Swiss roll nanoarray (SRNA) continuous films employing colloidal lithography. The technique permits the dimension of Swiss roll metamaterials to reduce to nanoscale, thus achieving chiroptical response (circular dichroism (CD)) in the visible region.
View Article and Find Full Text PDFStepwise Dissipative Control of Multimodal Motion in a Silver(I) Catenate.
Angew Chem Int Ed Engl
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Center of Micro and Nanochemistry and (Bio)Technology, School of Science and Technology, Organische Chemie I, University of Siegen, Adolf-Reichwein Str. 2, 57068, Siegen, Germany.
Stepwise dissipative control of two distinct motions, i.e., shuttling and sliding, is demonstrated in a single multicomponent device.
View Article and Find Full Text PDFReversible Restrain and Release of the Dynamic Valence Isomerization in a Shape-shifting Bullvalene by Complex Formation.
Chemistry
April 2024
Department of Chemistry-Biology, and Center of Micro-and Nanochemistry and (Bio)Technology (Cμ), University of Siegen, Adolf-Reichwein-Str. 2, 57068, Siegen, Germany.
In search for structural features that enable the control of the valence isomerization of the fluxional bullvalene, a bullvalene-bis(harmane) conjugate is identified that acts as chelating ligand in complexes with metal ions. Spectrometric titrations show that this ligand forms 1 : 1 complexes with Ag, Cu, Cu, and Zn. Most importantly, detailed NMR-spectroscopic analysis at different temperatures reveals that the complexation with Ag strongly affects the dynamic isomerization of the bullvalene unit of the ligand such that only one predominant valence isomer is formed, even at 5 °C.
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