Results 11 to 20 of about 1,343 (167)

Enhanced Near-Infrared-Excitable Organic Afterglow Nanoparticles for Deep-Tissue Multimodal Imaging via Singlet Oxygen-Mediated Energy Transfer [PDF]

open access: yesResearch
Afterglow imaging offers exceptional signal-to-background ratios (SBRs) by circumventing real-time excitation and autofluorescence, yet conventional systems rely on visible-light excitation, limiting tissue penetration and signal intensity.
Yuzhen Yu   +8 more
doaj   +2 more sources

Ultralong organic afterglow from small molecular host-guest materials: state of the art [PDF]

open access: yesLight: Science & Applications
Ultralong organic afterglow materials are being actively explored as attractive candidates for a wide range of applications such as data storage, security inks, emergency lighting, etc., due to their unique long-lived excited state properties and ...
Yuxin Xiao   +4 more
doaj   +2 more sources

Single-component color-tunable circularly polarized organic afterglow through chiral clusterization [PDF]

open access: yesNature Communications, 2022
Circularly polarized organic afterglow (CPOA) with both long-lived room-temperature phosphorescence and circularly polarized luminescence is attracting great interest, but the development of multicolor-tunable CPOA in a single-component material remains ...
Hui Li   +11 more
doaj   +2 more sources

Narrowband Organic/Inorganic Hybrid Afterglow Materials

open access: yesMolecules
Narrowband afterglow materials display interesting functions in high-quality anti-counterfeiting and multiplexed bioimaging. However, there is still a limited exploration of these afterglow materials, especially for those with a full width at half maxima
Wen Xia   +6 more
doaj   +3 more sources

Afterglow ice formed by phosphorescent luminophore-protein conjugates and complexes in aqueous solution at freezing temperature [PDF]

open access: yesNature Communications
Unlike the widely reported fluorophore-biomacromolecule systems in nucleic acid testing and immunoassay, organic afterglow luminophore-biomacromolecule conjugates and complexes remain rarely explored.
Xun Li   +5 more
doaj   +2 more sources

Enabling robust blue circularly polarized organic afterglow through self-confining isolated chiral chromophore [PDF]

open access: yesNature Communications
Creating circularly polarized organic afterglow system with elevated triplet energy levels, suppressed non-radiative transitions, and effective chirality, which are three critical prerequisites for achieving blue circularly polarized afterglow, has posed
Mingjian Zeng   +16 more
doaj   +2 more sources

Ultrabright and narrowband organic afterglow achieved by molecular engineering of coronene. [PDF]

open access: yesChem Sci
Ultrabright and narrowband organic afterglow is achieved using engineered coronene derivatives, which reaches 73 cd m −2 afterglow brightness with a narrow FWHM of 24.2 nm.
Chen Y   +7 more
europepmc   +3 more sources

Ultralong Phosphorescence of Water‐Soluble Organic Nanoparticles for In Vivo Afterglow Imaging [PDF]

open access: yesAdvanced Materials, 2017
Afterglow or persistent luminescence eliminates the need for light excitation and thus circumvents the issue of autofluorescence, holding promise for molecular imaging. However, current persistent luminescence agents are rare and limited to inorganic nanoparticles.
Peng Chen, Wei Huang, Ye Tao
exaly   +5 more sources

Red-light-excited dynamic near-infrared organic afterglow materials for in vivo bioimaging [PDF]

open access: yesLight: Science & Applications
Extending the excitation and emission wavelengths into the red or even near-infrared region is a highly challenging yet scientifically valuable research topic in the field of organic afterglow materials.
Lei Zhou   +8 more
doaj   +2 more sources

Phosphine-mediated hydrogen bond and phosphorescence energy transfer for tunable chiroptical afterglow in stacked polymers [PDF]

open access: yesNature Communications
Polymer-doped chiral organic afterglow (COA) materials represent an emerging frontier in photonics, yet their development is constrained by weak hydrogen bond interactions and limited spectral diversity.
Zhisheng Gao   +15 more
doaj   +2 more sources

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