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Photon-mediated energy transfer between molecules and atoms in a cavity: A numerical study.
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December 2024
Shiyan Key Laboratory of Quantum Information and Precision Optics, and School of Mathematics, Physics and Optoelectronic Engineering, Hubei University of Automotive Technology, Shiyan 442002, People's Republic of China.
The molecular energy transfer is crucial for many different physicochemical processes. The efficiency of traditional resonance energy transfer relies on dipole-dipole distance between molecules and becomes negligible when the distance is larger than ∼10 nm, which is difficult to overcome. Cavity polariton, formed when placing molecules inside the cavity, is a promising way to surmount the distance limit.
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Department of Physics, Toronto Metropolitan University, 350 Victoria Street, Toronto, Ontario, M5B 2K3.
This study elucidated the radiation response characteristics of a Gafchromic radiochromic film subjected to low photon doses of ≤50 mSv, which corresponds to the annual whole body effective dose limit for radiation workers in Canada. Radiochromic films are investigated for possible use as a complementary tool for the Canadian Armed Forces that can be worn in addition to their existing personal dosimetry to quickly assess personal radiation dose received from radiological hazards without reliance on electronics. The films were exposed to varying photon energies emanating from x-ray generators and radioisotopes, specifically cesium-137, cobalt-60, and americium-241.
View Article and Find Full Text PDFExploring Excited-State Intramolecular Proton-Coupled Electron Transfer in Dinuclear Ir(III)-Complex via Covalently Tagged Hydroquinone: Phototherapy Through Futile Redox Cycling.
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Department of Chemistry, Indian Institute of Technology, Kharagpur, West Bengal, 721302, India.
Anticipating intramolecular excited-state proton-coupled electron transfer (PCET) process within dinuclear Ir-photocatalytic system via the covalent linkage is seminal, yet challenging. Indeed, the development of various dinuclear complexes is also promising for studying integral photophysics and facilitating applications in catalysis or biology. Herein, this study reports dinuclear [Ir(bis{imidazo-phenanthrolin-2-yl}-hydroquinone)(ppy)] (1) complex by leveraging both ligand-centered redox property and intramolecular H-bonding for exploring dual excited-state proton-transfer assisted PCET process.
View Article and Find Full Text PDFPolyethylene glycol-phospholipid functionalized single-walled carbon nanotubes for enhanced siRNA systemic delivery.
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Centre for Cancer and Stem Cell Research, Institute for Research, Development and Innovation (IRDI), IMU University, Kuala Lumpur, 57000, Malaysia.
Small interfering RNAs (siRNA) technology has emerged as a promising therapeutic tool for human health conditions like cancer due to its ability to regulate gene silencing. Despite FDA-approved, their delivery remains localized and limiting their systemic use. This study used single-walled carbon nanotubes (SWNTs) functionalized with polyethylene glycolated (PEGylated) phospholipids (PL-PEG) derivatives for systemic siRNA delivery.
View Article and Find Full Text PDFDevelopment of SacB-based counterselection for efficient allelic exchange in .
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January 2025
Department of Microbiology & Molecular Genetics, The University of Texas Health Science Center, Houston, Texas, USA.
, prevalent in the oral cavity, is significantly linked to overall human health. Our molecular comprehension of its role in oral biofilm formation and its interactions with the host under various pathological circumstances has seen considerable advancements in recent years, primarily due to the development of various genetic tools for DNA manipulation in this bacterium. Of these, counterselection-based unmarked in-frame mutation methods have proved notably effective.
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