Results 111 to 120 of about 58,471 (202)

Spatio‐Temporal Processes of Diffusion‐Controlled Communication in Hierarchical Multi‐Compartments

open access: yesAngewandte Chemie, EarlyView.
This study highlights the molecular communication of neighboring biomimetic populations in pH‐responsive hierarchically and non‐covalently organized multi‐compartments (HMC) through the assembly of micro‐ and nanocompartments. HMC unify key roles for cyclic spatio‐temporal diffusion processes and spatio‐temporal enzyme(‐like) reactions.
Xin Qiao   +9 more
wiley   +2 more sources

Engineering cofacial porphyrin dimers using lacunary polyoxotungstates. [PDF]

open access: yesChem Sci
Yamaguchi M   +7 more
europepmc   +1 more source

meso‐Free Porphyrinoids

open access: yesAsian Journal of Organic Chemistry, EarlyView.
meso‐Free porphyrinoids are recognized as a versatile platform for further functionalization and oligomerization. The synthesis and characteristic features of such meso‐free porphyrinoids are reviewed. Abstract meso‐Unsubstituted (meso‐free) porphyrins have been an effective platform for creating versatile peripherally functionalized porphyrins and ...
Takayuki Tanaka   +2 more
wiley   +1 more source

Hydrogen‐Bond‐Directed Supramolecular Organic Semiconductor Thin Films Realized via Thermal Precursor Approach

open access: yesAngewandte Chemie, EarlyView.
Hydrogen‐bonding‐directed supramolecular semiconductor thin films are realized by a thermal precursor approach. The precursor film is formed via solution processes and thermally converted to the target semiconductor film. This versatile strategy enables the fabrication of supramolecularly controlled thin films composed of insoluble molecules like π ...
So Ueno   +7 more
wiley   +2 more sources

Formulation and Characterization of Carbopol-Based Porphyrin Gels for Targeted Dermato-Oncological Therapy: Physicochemical and Pharmacotechnical Insights. [PDF]

open access: yesInt J Mol Sci
Ozon EA   +11 more
europepmc   +1 more source

Solvent‐Directed Handedness in a Chirally Twisted Tetrakisporphyrin Macrocycle

open access: yesAsian Journal of Organic Chemistry, EarlyView.
A chirally twisted tetrakisporphyrin macrocycle was synthesized by incorporating a chiral dioxolane into a tetrakisporphyrin macrocycle. The solvent type influenced the preferred handedness of the twisted conformation. Circular dichroism measurements and computational analyses determined the handedness of the conformers in solvents toluene and ...
Kouta Tanabe   +2 more
wiley   +1 more source

Tuning Antiaromaticity Through Meso‐Substituent Orientation in Core‐Modified Isophlorins

open access: yesAsian Journal of Organic Chemistry, EarlyView.
The antiaromaticity of dithiadioxaisophlorins is controlled by the steric bulkiness of meso‐substituents through their tilt angle relative to the macrocycle. Bulkier substituents maintain larger angles, preserving stronger antiaromaticity, while smaller groups facilitate π‐conjugation with the macrocycle, diminishing antiaromaticity.
Maika Isoda   +3 more
wiley   +1 more source

Oxidative Rearrangements of the Alkaloid Intermediate Geissoschizine

open access: yesAngewandte Chemie, EarlyView.
19E‐geissoschizine is a key precursor in the biosynthesis of monoterpene indole alkaloids such as strychnine, ibogaine, and vinblastine. Using enzymatic assays and gene silencing, three CYPs were identified from C. roseus that oxidize this compound to four alkaloid scaffolds: strychnos, sarpagan, akuammiline, and mavacurane. Mutational analysis reveals
Mohamed O. Kamileen   +6 more
wiley   +2 more sources

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