Results 61 to 70 of about 5,308 (247)

Laser‐Induced Local De‐Doping in Organic Semiconductors

open access: yesAdvanced Materials Technologies, EarlyView.
The polymer PBTTT‐C14 doped with the small molecule acceptor F4TCNQ is considered as a benchmark material system. Mask‐free, microscale patterning of the doping level via laser‐induced heating and sublimation of dopant molecules is shown. Controlling laser irradiance and swath spacing allows dopant level control with laser‐limited resolution, opening ...
Christian Rainer   +5 more
wiley   +1 more source

A Molecular Engineering Strategy to Fine‐Tune Phototoxicity of AIE Probes for Super‐Resolution Imaging of Mitochondrial Cristae Dynamics

open access: yesAdvanced Science, EarlyView.
Regulation of molecular packing, phototoxicity, and ROS output of AIE photosensitizers is achieved through carboxylation and alkyl‐chain‐length tuning. The probe designed via this strategy enables super‐resolution visualization of inner‐mitochondrial‐membrane cristae dynamics under controlled oxidative stress, and fluorescence‐lifetime imaging of ...
Kongqi Chen   +5 more
wiley   +1 more source

Synthesis and Properties of Substituted Poly(thiophenes)

open access: yes, 1995
The aim of this work was to synthesize new substituted poly(thiophenes) with certain desired properties. Soluble and meltable poly(thiophenes) can be prepared if a long alkyl side-chain is attached to each thiophene ring along the polymer backbone.
Andersson, Mats R., Andersson, Mats
core   +1 more source

Echinops as a Source of Bioactive Compounds—A Systematic Review

open access: yesPharmaceuticals
Background: Echinops is a genus of spiny, herbaceous perennials in the Asteraceae family, known for its distinct morphology and broad pharmacological potential.
Simona Ivanova   +4 more
doaj   +1 more source

Recent Advances in the Synthesis of Thiophene Derivatives by Cyclization of Functionalized Alkynes

open access: yesMolecules, 2014
This review is intended to highlight some recent and particularly interesting examples of the synthesis of thiophene derivatives by heterocyclization of readily available S-containing alkyne substrates.
Raffaella Mancuso, Bartolo Gabriele
doaj   +1 more source

Lewis Acid Catalysis in the Oxidative Cycloaddition of Thiophenes [PDF]

open access: yes, 1997
Thiophenes 1 were treated with m-chloroperbenzoic acid (m-CPBA) under BF3·Et2O catalysis to afford thiophene S-monoxides. These could be reacted in situ as intermediary species with a number of dienophiles to provide arenes (with alkynes as dienophiles ...
Mataka, Shuntaro   +4 more
core   +1 more source

Smart Nanotechnologies for Multimodal Neuromodulation and Brain Interfacing

open access: yesAdvanced Science, EarlyView.
Recent advances in smart nanotechnologies are expanding the toolbox for brain interfacing, from wireless neuromodulation and high‐resolution sensing to targeted delivery within the central nervous system. By combining responsive nanomaterials with bioinspired design, these platforms enable multimodal interactions with neurons and glia, while also ...
Tommaso Curiale   +6 more
wiley   +1 more source

Novel thiophene derivatives with sulfonamide, isoxazole, benzothiazole, quinoline and anthracene moieties as potential anticancer agents

open access: yesActa Pharmaceutica, 2014
A novel series of thiophenes having biologically active sulfonamide 2-11, 3-methylisoxazole 12, 4-methoxybenzo[d] thiazole 13, quinoline 14, 15, benzoylphenylamino 16, and anthracene-9,10-dione 17 moieties were prepared.
Ghorab Mostafa M.   +2 more
doaj   +1 more source

Advances and Perspectives in Graphene‐Based Quantum Dots Enabled Neuromorphic Devices

open access: yesAdvanced Science, EarlyView.
Graphene‐based QDs are zero‐dimensional carbon nanomaterials with pronounced quantum confinement and tunable electronic structures. Herein, we summarize their synthesis strategies and functionalization methods, and highlight their functional roles and operating mechanisms in devices, as well as recent advances in neuromorphic electronics. We anticipate
Yulin Zhen   +9 more
wiley   +1 more source

Flexible Routes to Thiophenes

open access: yes, 2016
Three convergent routes to thiophenes are described, hinging on the radical addition of α-xanthyl ketones to ethyl vinyl sulfide or to vinyl pivalate. The latter route ultimately proved to be the most versatile and efficient (61–94%)
Hélène Jullien (1863844)   +3 more
core   +1 more source

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