Articles with "shaped double" as a keyword



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S-Shaped Double Helicene Diimides: Synthesis, Self-Assembly, and Mechanofluorochromism.

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Published in 2021 at "Organic letters"

DOI: 10.1021/acs.orglett.1c00678

Abstract: Herein we present a synthesis of an S-shaped double helicene with fused imide moieties, achieving a contorted aromatic diimide (DHDI) with good fluorescence properties in both solution and the solid state. DHDI demonstrates distinct mechanofluorochromism… read more here.

Keywords: shaped double; mechanofluorochromism; double helicene; helicene diimides ... See more keywords

Dual-Aptamer-Assisted Ratiometric SERS Biosensor for Ultrasensitive and Precise Identification of Breast Cancer Exosomes.

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Published in 2023 at "ACS sensors"

DOI: 10.1021/acssensors.2c02587

Abstract: Due to the heterogeneity of breast cancer, its early accurate diagnosis remains a challenge. Exosomes carry abundant genetic materials and proteins and are ideal biomarkers for early cancer detection. Herein, a ratiometric surface-enhanced Raman scattering… read more here.

Keywords: dna; sers biosensor; breast cancer; shaped double ... See more keywords

Category of upper eyelid morphology and the preferred double eyelid shape in Asians according to questionnaire survey.

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Published in 2023 at "Journal of cosmetic dermatology"

DOI: 10.1111/jocd.15822

Abstract: BACKGROUND The morphological classification of the upper eyelid in Asian people is complex and diverse and usually not consistent with what we know well. AIMS To improve the classification of upper eyelid morphology and investigate… read more here.

Keywords: fan shaped; double eyelid; upper eyelid; shaped double ... See more keywords

Vibro-Acoustic Coupling Characteristics Underwater of Disc-Shaped Double-Layer Shell with Stiffeners

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Published in 2025 at "Journal of Marine Science and Engineering"

DOI: 10.3390/jmse13091821

Abstract: A disc-shaped double-layer shell structure reinforced by stiffeners is introduced for underwater gliders. Based on the finite element method integrated with automatic matching layer (FEM/AML) technology and the direct boundary element method (DBEM), the acoustic… read more here.

Keywords: layer; disc shaped; double layer; shaped double ... See more keywords

Thiophene/selenophene-based S-shaped double helicenes: regioselective synthesis and structures

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Published in 2022 at "Beilstein Journal of Organic Chemistry"

DOI: 10.3762/bjoc.18.81

Abstract: 2,5-Di(trimethylsilanyl)dithieno[2,3-b:3′,2′-d]thiophene ((TMS)2-bb-DTT), 2,5-di(trimethylsilanyl)diseleno[2,3-b:3′,2′-d]thiophene ((TMS)2-bb-DST), and 2,5-di(trimethylsilanyl)diseleno[2,3-b:3′,2′-d] selenophene ((TMS)2-bb-DSS) were used as starting materials to synthesize three S-shaped double helicenes (i.e., DH-1, DH-2, and DH-3) through monobromination, formylation, the Wittig reaction, and double oxidative photocyclization. The… read more here.

Keywords: selenophene based; double helicenes; thiophene selenophene; shaped double ... See more keywords