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   Articles with "atom free" as a keyword



Self-Assembly Induced Photosensitization of Long-Tailed Heavy-Atom-Free BODIPY Derivatives for Photodynamic Therapy.

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recommendations! Published in 2023 at "Advanced healthcare materials"

DOI: 10.1002/adhm.202301022

Abstract: Type I photosensitizers (PSs) are a promising approach for photodynamic therapy (PDT) since they can generate radicals that are tolerant to hypoxia. Thus, the development of highly efficient type I PSs is essential. Self-assembly is… read more here.

Keywords: atom free; long tailed; self assembly; photodynamic therapy ... See more keywords

Highly Efficient Persistent Room-Temperature Phosphorescence from Heavy Atom-Free Molecules Triggered by Hidden Long Phosphorescent Antenna.

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recommendations! Published in 2020 at "Advanced materials"

DOI: 10.1002/adma.202001348

Abstract: Persistent (lifetime > 100 ms) room-temperature phosphorescence (pRTP) is important for state-of-the-art security and bioimaging applications. An unclear relationship between chromophores and physical parameters relating to pRTP has prevented obtaining an RTP yield of over… read more here.

Keywords: heavy atom; room temperature; temperature phosphorescence; atom free ... See more keywords

Heavy-Atom-Free Room-Temperature Phosphorescent Rylene Imide for High-Performing Organic Photovoltaics.

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recommendations! Published in 2021 at "Advanced science"

DOI: 10.1002/advs.202103975

Abstract: Organic phosphorescence, originating from triplet excitons, has potential for the development of new generation of organic optoelectronic materials. Herein, two heavy-atom-free room-temperature phosphorescent (RTP) electron acceptors with inherent long lifetime triplet exctions are first reported.… read more here.

Keywords: temperature phosphorescent; atom free; heavy atom; room temperature ... See more keywords

Helical BODIPY Dyes as Heavy‐Atom‐Free Triplet Photosensitizers for Photodynamic Therapy of Cancer

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recommendations! Published in 2024 at "ChemMedChem"

DOI: 10.1002/cmdc.202400041

Abstract: Despite of having many advantages over the popular cancer therapies, photodynamic therapy still is not widely acceptable for clinical applications. Scarcity of efficient triplet photosensitizers (PSs) is one of the main bottlenecks for this. Although… read more here.

Keywords: cancer; triplet; bodipys; atom free ... See more keywords

Aromaticity Tuning of Heavy-Atom-Free Photosensitizers for Singlet Fission-Enhanced Immunogenic Photodynamic Oncotherapy.

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recommendations! Published in 2024 at "Nano letters"

DOI: 10.1021/acs.nanolett.4c01862

Abstract: The quantum yield of reactive oxygen species is of central importance for the development of organic photosensitizers and photodynamic therapy (PDT). A common molecular design approach for optimizing organic photosensitizers involves the incorporation of heavy… read more here.

Keywords: state; triplet; singlet fission; atom free ... See more keywords
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Electronic Relaxation Pathways in Heavy-Atom-Free Photosensitizers Absorbing Near-Infrared Radiation and Exhibiting High Yields of Singlet Oxygen Generation.

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recommendations! Published in 2021 at "Journal of the American Chemical Society"

DOI: 10.1021/jacs.0c13203

Abstract: Heavy-atom-free photosensitizers (HAF-PSs) based on thionation of carbonyl groups of readily accessible organic compounds are rapidly emerging as a versatile class of molecules. However, their photochemical properties and electronic relaxation mechanisms are currently unknown. Investigating… read more here.

Keywords: free photosensitizers; relaxation; heavy atom; near infrared ... See more keywords

Heavy-atom-free amorphous materials with facile preparation and efficient room-temperature phosphorescence emission.

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recommendations! Published in 2019 at "Chemical communications"

DOI: 10.1039/c9cc01594a

Abstract: Amorphous pure organic room-temperature phosphorescent small molecules without heavy atoms, based on the intermolecular hydrogen bonding network for the immobilization of luminophores, were designed and facilely prepared via modification of heavy-atom-free luminophores onto β-cyclodextrin. read more here.

Keywords: heavy atom; free amorphous; atom free; room temperature ... See more keywords

Heavy atom free 1,1,4,4-tetraphenylbuta-1,3-diene with aggregation induced emission for photodynamic cancer therapy

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recommendations! Published in 2019 at "New Journal of Chemistry"

DOI: 10.1039/c9nj01331h

Abstract: Common organic molecules usually suffer from aggregation caused quenching (ACQ), which is disadvantageous for imaging guided phototherapy. read more here.

Keywords: atom free; heavy atom; free tetraphenylbuta; aggregation ... See more keywords
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Recent development of heavy-atom-free triplet photosensitizers: molecular structure design, photophysics and application

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recommendations! Published in 2021 at "Journal of Materials Chemistry C"

DOI: 10.1039/d1tc02535j

Abstract: Recent development of the heavy-atom-free triplet photosensitizers is summarized from the perspective of intersystem crossing mechanisms and molecular structure design methods. read more here.

Keywords: free triplet; heavy atom; triplet photosensitizers; recent development ... See more keywords

A smart cysteine-activated and heavy-atom-free nano-photosensitizer for photodynamic therapy to treat cancers.

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recommendations! Published in 2024 at "Chemical communications"

DOI: 10.1039/d3cc06019e

Abstract: A smart and heavy-atom-free photoinactive nano-photosensitizer capable of being activated by cysteine at the tumor site to generate highly photoactive nano-photosensitizers that show strong NIR absorption and fluorescence with a good singlet oxygen quantum yield… read more here.

Keywords: nano photosensitizer; cysteine; atom free; heavy atom ... See more keywords

Ring-fused BODlPY derived heavy-atom-free triplet photosensitizers.

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recommendations! Published in 2025 at "Chemical communications"

DOI: 10.1039/d4cc06350c

Abstract: Triplet photosensitizers are compounds that demonstrate strong absorption of the excitation light, high intersystem crossing (ISC) efficiency for efficient triplet state generation, and long triplet lifetimes to facilitate subsequent photochemical reactions. Among these, heavy-atom-free triplet… read more here.

Keywords: triplet photosensitizers; triplet; ring fused; free triplet ... See more keywords