Thomas Basché
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View article: Suppressing non-radiative relaxation in a NIR single photon emitter: the impact of deuteration and temperature
Suppressing non-radiative relaxation in a NIR single photon emitter: the impact of deuteration and temperature Open
Deuteration suppresses the weakly temperature dependent internal conversion (IC) and turns dibenzoterrylene molecules into bright single photon emitters, in agreement with the predictions of the well-known energy-gap law.
View article: High-Resolution Cryogenic Spectroscopy of Single Molecules in Nanoprinted Crystals
High-Resolution Cryogenic Spectroscopy of Single Molecules in Nanoprinted Crystals Open
We perform laser spectroscopy at liquid helium temperatures (T = 2 K) to investigate single dibenzoterrylene (DBT) molecules doped in anthracene crystals of nanoscopic height fabricated by electrohydrodynamic dripping. Using high-resolutio…
View article: Near-Infrared Perylenecarboximide Fluorophores for Live-Cell Super-Resolution Imaging
Near-Infrared Perylenecarboximide Fluorophores for Live-Cell Super-Resolution Imaging Open
Organic near-infrared (NIR) photoblinking fluorophores are highly desirable for live-cell super-resolution imaging based on single-molecule localization microscopy (SMLM). Herein we introduce a novel small chromophore, PMIP, through the fu…
View article: High-resolution Cryogenic Spectroscopy of Single Molecules in Nanoprinted Crystals
High-resolution Cryogenic Spectroscopy of Single Molecules in Nanoprinted Crystals Open
We perform laser spectroscopy at liquid helium temperatures (T=2 K) to investigate single dibenzoterrylene (DBT) molecules doped in anthracene crystals of nanoscopic height fabricated by electrohydrodynamic dripping. Using high-resolution …
View article: A Terrylene–Anthraquinone Dyad as a Chromophore for Photothermal Therapy in the NIR-II Window
A Terrylene–Anthraquinone Dyad as a Chromophore for Photothermal Therapy in the NIR-II Window Open
A terrylenedicarboximide-anthraquinone dyad, FTQ, with absorption in the second near-infrared region (NIR-II) is obtained as a high-performance chromophore for photothermal therapy (PTT). The synthetic route proceeds by C-N coupling of ami…
View article: High‐Performance Near‐Infrared Chlorinated Rylenecarboximide Fluorophores via Consecutive C−N and C−C Bond Formation
High‐Performance Near‐Infrared Chlorinated Rylenecarboximide Fluorophores via Consecutive C−N and C−C Bond Formation Open
A new class of near‐infrared (NIR) fluorophores, PAI , is obtained by consecutive C−N/C−C bond formation between diphenylamines and 9,10‐dibromoperylenecarboximide. Owing to the rigid structure, extended π‐conjugation and pronounced push‐p…
View article: Conformational Selection and Induced Fit: The Behavior of Two Homologous Proteases
Conformational Selection and Induced Fit: The Behavior of Two Homologous Proteases Open
Protein‐ligand interactions are crucial for many cellular processes, with details of the binding mechanism being discussed as essential for biological functions. Interestingly, protein binding often involves conformational changes between …
View article: Correction to “The Energy Gap Law at Work: Emission Yield and Rate Fluctuations of Single NIR Emitters”
Correction to “The Energy Gap Law at Work: Emission Yield and Rate Fluctuations of Single NIR Emitters” Open
ADVERTISEMENT RETURN TO ISSUEPREVAddition/CorrectionNEXTORIGINAL ARTICLEThis notice is a correctionCorrection to "The Energy Gap Law at Work: Emission Yield and Rate Fluctuations of Single NIR Emitters"Christian ErkerChristian ErkerMore by…
View article: A competition <scp>smFRET</scp> assay to study ligand‐induced conformational changes of the dengue virus protease
A competition <span>smFRET</span> assay to study ligand‐induced conformational changes of the dengue virus protease Open
Ligand binding to proteins often is accompanied by conformational transitions. Here, we describe a competition assay based on single molecule Förster resonance energy transfer (smFRET) to investigate the ligand‐induced conformational chang…
View article: Self‐Healing Ability of Perovskites Observed via Photoluminescence Response on Nanoscale Local Forces and Mechanical Damage
Self‐Healing Ability of Perovskites Observed via Photoluminescence Response on Nanoscale Local Forces and Mechanical Damage Open
The photoluminescence (PL) of metal halide perovskites can recover after light or current‐induced degradation. This self‐healing ability is tested by acting mechanically on MAPbI 3 polycrystalline microcrystals by an atomic force microscop…
View article: Photostable NIR‐II Pigments from Extended Rylenecarboximides
Photostable NIR‐II Pigments from Extended Rylenecarboximides Open
A series of near‐infrared (NIR) organic absorbers, named FNs and FPs , have been obtained with absorption maxima from 870 nm to 1100 nm and thus falling into the attractive second near‐infrared region (NIR‐II). The synthesis of their exten…
View article: Lateral Size Dependence in FRET between Semiconductor Nanoplatelets and Conjugated Fluorophores
Lateral Size Dependence in FRET between Semiconductor Nanoplatelets and Conjugated Fluorophores Open
Sensitization of organic molecules by semiconductor nanocrystals is a promising way to boost the absorption of the former, important for applications in fluorescence labeling and photocatalysis. Semiconductor nanoplatelets provide the oppo…
View article: Dibenzo[<i>hi</i>,<i>st</i>]ovalene as Highly Luminescent Nanographene: Efficient Synthesis via Photochemical Cyclodehydroiodination, Optoelectronic Properties, and Single-Molecule Spectroscopy
Dibenzo[<i>hi</i>,<i>st</i>]ovalene as Highly Luminescent Nanographene: Efficient Synthesis via Photochemical Cyclodehydroiodination, Optoelectronic Properties, and Single-Molecule Spectroscopy Open
Dibenzo[hi,st]ovalene (DBOV), as a new nanographene, has demonstrated promising optical properties, such as red emission with a high fluorescence quantum yield of 79% and stimulated emission, as well as high thermal stability and photostab…
View article: Accidental Contamination of Substrates and Polymer Films by Organic Quantum Emitters
Accidental Contamination of Substrates and Polymer Films by Organic Quantum Emitters Open
We report the observation of ubiquitous contamination of dielectric substrates and poly(methyl methacrylate) matrices by organic molecules with optical transitions in the visible spectral range. Contamination sites of individual solvent-re…
View article: Cover Feature: Alkali Blues: Blue‐Emissive Alkali Metal Pyrrolates (Chem. Eur. J. 26/2019)
Cover Feature: Alkali Blues: Blue‐Emissive Alkali Metal Pyrrolates (Chem. Eur. J. 26/2019) Open
2-Iminopyrroles are non-fluorescent π systems. However, alkali metal bases deprotonate the pyrrole and are chelated by the bidentate ligand. This method rigidifies the π system, restricts intramolecular motions, and consequently disfavors …
View article: CCDC 1855068: Experimental Crystal Structure Determination
CCDC 1855068: Experimental Crystal Structure Determination Open
An entry from the Cambridge Structural Database, the world’s repository for small molecule crystal structures. The entry contains experimental data from a crystal diffraction study. The deposited dataset for this entry is freely available …
View article: CCDC 1855069: Experimental Crystal Structure Determination
CCDC 1855069: Experimental Crystal Structure Determination Open
An entry from the Cambridge Structural Database, the world’s repository for small molecule crystal structures. The entry contains experimental data from a crystal diffraction study. The deposited dataset for this entry is freely available …
View article: CCDC 1855071: Experimental Crystal Structure Determination
CCDC 1855071: Experimental Crystal Structure Determination Open
An entry from the Cambridge Structural Database, the world’s repository for small molecule crystal structures. The entry contains experimental data from a crystal diffraction study. The deposited dataset for this entry is freely available …
View article: CCDC 1855070: Experimental Crystal Structure Determination
CCDC 1855070: Experimental Crystal Structure Determination Open
An entry from the Cambridge Structural Database, the world’s repository for small molecule crystal structures. The entry contains experimental data from a crystal diffraction study. The deposited dataset for this entry is freely available …
View article: Imaging and force transduction in correlative scanning force and confocal fluorescence microscopy
Imaging and force transduction in correlative scanning force and confocal fluorescence microscopy Open
Correlative scanning force and confocal fluorescence microscopy has been used to study individual molecules, nanoparticles and nanoparticle oligomers. By applying a compressive force via the AFM cantilever, spectral blue and red shifts in …
View article: Probing the self-assembly and stability of oligohistidine based rod-like micelles by aggregation induced luminescence
Probing the self-assembly and stability of oligohistidine based rod-like micelles by aggregation induced luminescence Open
The synthesis and self-assembly of a newC2-symmetric oligohistidine amphiphile equipped with an aggregation induced emission luminophore is reported.
View article: Comparative evaluation of the impact on endothelial cells induced by different nanoparticle structures and functionalization
Comparative evaluation of the impact on endothelial cells induced by different nanoparticle structures and functionalization Open
In the research field of nanoparticles, many studies demonstrated a high impact of the shape, size and surface charge, which is determined by the functionalization, of nanoparticles on cell viability and internalization into cells. This wo…
View article: The effect of surface charge on nonspecific uptake and cytotoxicity of CdSe/ZnS core/shell quantum dots
The effect of surface charge on nonspecific uptake and cytotoxicity of CdSe/ZnS core/shell quantum dots Open
In this work, cytotoxicity and cellular impedance response was compared for CdSe/ZnS core/shell quantum dots (QDs) with positively charged cysteamine–QDs, negatively charged dihydrolipoic acid–QDs and zwitterionic D-penicillamine–QDs expos…