A5047864410- Porphyrin and Phthalocyanine Chemistry
- Photodynamic Therapy Research Studies
- Photosynthetic Processes and Mechanisms
- Luminescence and Fluorescent Materials
- Photoreceptor and optogenetics research
- X-ray Diffraction in Crystallography
- Crystallization and Solubility Studies
- Advanced Polymer Synthesis and Characterization
- Click Chemistry and Applications
- biodegradable polymer synthesis and properties
- Chemistry and Chemical Engineering
- Protist diversity and phylogeny
- Photochromic and Fluorescence Chemistry
- Pulsars and Gravitational Waves Research
- Carbon dioxide utilization in catalysis
- Porphyrin Metabolism and Disorders
- Lipid Membrane Structure and Behavior
- Photochemistry and Electron Transfer Studies
- Astrophysical Phenomena and Observations
- Nanoplatforms for cancer theranostics
- Galaxies: Formation, Evolution, Phenomena
- Membrane Separation Technologies
American University of the Middle East
2022
North Carolina State University
2013-2018
Six new bacteriochlorins expanding the range of strong near-infrared (NIR) absorption (Qy band) to both shorter and longer wavelengths (∼690 ∼900 nm) have been synthesized characterized. The architectures include bacteriochlorin–bisimides that six-membered imide rings spanning 3,5- 13,15-macrocycle positions or five-membered β-pyrrolic 2,3- 12,13-positions. Both bisimide types absorb at significantly wavelength than bacteriochlorin precursors (no fused rings), whereas oxo-groups 7-...
Lipid vesicles are used as the organizational structure of self-assembled light-harvesting systems. Following analysis 17 chromophores, six were selected for inclusion in vesicle-based antennas. The complementary absorption features chromophores span near-ultraviolet, visible, and near-infrared region. Although overall concentration pigments is low (∼1 μM quantitative spectroscopic studies) a cuvette, lipid-vesicle system affords high (≥10 mM) bilayer efficient energy flow from donor to...
Synthesis of a bioconjugatable water-soluble (PEGylated) <italic>trans</italic>-AB-porphyrin enables photophysical comparisons (<italic>τ</italic><sub>S</sub>, <italic>k</italic><sub>f</sub>, <italic>k</italic><sub>ic</sub>, <italic>k</italic><sub>isc</sub>, <italic>Φ</italic><sub>f</sub>, <italic>Φ</italic><sub>ic</sub>, <italic>Φ</italic><sub>isc</sub>) with analogous chlorins and bacteriochlorins in DMF water.
Understanding the physical structures of accreted matter very close to a black hole in quasars and active galactic nucleus (AGN) is an important milestone constrain activities occurring their centers. In this paper, we numerically investigate effects asymptotic velocities on accretion disk around Kerr Einstein–Gauss–Bonnet (EGB) rapidly rotating holes. The Bondi–Hoyle considered with falling gas towards upstream region computational domain. Shock cones are naturally formed downstream part...
We report generation of modular, artificial light-harvesting assemblies where an amphiphilic diblock copolymer, poly(ethylene oxide)-block-poly(butadiene), serves as the framework for noncovalent organization BODIPY-based energy donor and bacteriochlorin-based acceptor chromophores. The are adaptive form well-defined micelles in aqueous solution high-quality monolayer bilayer films on solid supports, with latter showing greater than 90% transfer efficiency. This study lays groundwork further...
Bacteriochlorins absorb strongly in the near-infrared (NIR, 700-900 nm) region and hence are well suited for photophysical studies photomedical applications, yet such endeavors heretofore have been largely limited by intrinsic lipophilicity of bacteriochlorin macrocycle. Here, a new molecular design is investigated wherein 3,5-dicarboxyphenyl units appended to β-pyrrolic positions bacteriochlorin. Use 3,5-aryl substitution motif places carboxylic acid groups, which anionic at neutral pH,...
Biohybrid light-harvesting antennas are an emerging platform technology with versatile tailorability for solar-energy conversion. These systems combine the proven peptide scaffold unit utilized light harvesting by purple photosynthetic bacteria attached synthetic chromophores to extend solar coverage beyond that of natural systems. Herein, unattached employed partition into organized milieu (e.g. detergent micelles) house LH1-like biohybrid architectures. The include a hydrophobic...
Porphyrins bearing a single bioconjugatable group and water-solubilization motif in trans-AB-architecture (with no other substituents) provide compact design of value for studies diverse disciplines. Established synthetic methods have been employed to prepare four new free base porphyrins one Mn ( III ) chelate. The hydrophilic includes 4-N-methylpyridinium, 2,4,6-tris(carboxymethoxy)phenyl, 2,6-bis(phosphonomethoxy)phenyl, carboxy; the unit carboxy, maleimido, N-hydroxysuccinimido (NHS)...
Abstract Increasing the solar spectral coverage of native photosynthetic antennas can be achieved using biohybrid light‐harvesting (LH) structures comprised native‐like bacterial peptides and synthetic bacteriochlorins with strong near‐infrared absorption. Four such biohybrids have been prepared wherein maleimido‐bearing bacteriochlorin BC1‐mal is covalently attached to a Cys residue substituted at either +1, +5 or +11 position (relative His‐0) 48‐residue β‐peptide Rb. sphaeroides LH1. In...