Article
Chemistry, Applied
Nazli Farajzadeh, Goknur Yasa Atmaca, Ali Erdogmus, Makbule Burkut Kocak
Summary: This study utilized a sono-photochemical method to investigate the properties of lutetium phthalocyanines, synthesizing a series of new compounds. The results demonstrated that sono-photochemical properties enhance therapeutic effects more effectively than photochemical properties.
Article
Chemistry, Multidisciplinary
Daisy Unsihuay, Pei Su, Hang Hu, Jiamin Qiu, Shihuan Kuang, Yingju Li, Xiaofei Sun, Sudhansu K. Dey, Julia Laskin
Summary: The development of a novel online photochemical approach for lipid isomer identification utilizing selective derivatization of double bonds with singlet oxygen provides a new strategy for exploring the complexity of the lipidome. Fragmentation of lipid hydroperoxide products in a mass spectrometer allows for rapid identification of C=C bond locations in lipids. This cost-effective method can be easily integrated into lipidomics workflows.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2021)
Review
Chemistry, Physical
Agata Blacha-Grzechnik
Summary: Research has shown that conjugated polymers can serve as an effective light-activated source of singlet oxygen due to their high absorption and efficient energy transfer properties. These polymers with extended pi-conjugated bonds have novel possibilities to explore.
Article
Chemistry, Organic
Yu Yan, Valentina Brega, Manuel M. Pina, Samuel W. Thomas
Summary: The photochemical oxidations of acenes can pose challenges for their optoelectronic applications, but they also form the basis for many luminescent sensing schemes. Diethynyl substitution is widely adopted to control oxidation and improve solubility and processability of long acenes, but the influence of differences between the alkyne groups on key properties of long acenes remains largely unknown.
ORGANIC & BIOMOLECULAR CHEMISTRY
(2023)
Article
Chemistry, Physical
D. Eric Shen, Augustus W. Lang, Graham S. Collier, Anna M. Osterholm, Evan M. Smith, Aimee L. Tomlinson, John R. Reynolds
Summary: Photodegradation of conjugated polymers still occurs under oxygen- and moisture-free conditions, which needs to be addressed in order to enhance their photostability. By studying a family of dialkoxy-functionalized thiophene polymers under oxygen-free conditions, the main degradation pathway is identified as crosslinking through the alkyl side chains, and the rate of photodegradation is influenced by the twisting of the backbone. Moving away from tertiary carbon branched side chains, utilizing quaternary carbon branches or linear chains, and relocating the branching point from the conjugated backbone are all promising strategies for improving photostability in conjugated polymers.
CHEMISTRY OF MATERIALS
(2022)
Article
Chemistry, Analytical
Dmitry Erzunov, Svetlana Tonkova, Anastasia Belikova, Arthur Vashurin
Summary: Novel metal-free and Mg(II) [3/4-(3,4-dicyanophenoxy)phenoxy]-substituted phthalocyanines with good solubility and fluorescence properties were synthesized and characterized. The complexes showed higher molar light absorption coefficients and fluorescence quantum yields compared to ligands. The magnesium [3/4-(3,4-dicyanophenoxy)phenoxy]phthalocyaninates exhibited efficient fluorescence-quenching and singlet oxygen generation, suggesting their potential application as PDT sensitizers.
Article
Chemistry, Multidisciplinary
Werner Fudickar, Marcel Bauch, Heiko Ihmels, Torsten Linker
Summary: The research shows that pyridinium alkynylanthracenes are useful intercalators that enhance the photochemical generation of O-1(2) in the DNA-bound state, and their interaction with DNA can affect their activity in specific conditions.
CHEMISTRY-A EUROPEAN JOURNAL
(2021)
Review
Chemistry, Medicinal
Lirong Wang, Rong Hu, Anjun Qin, Ben Zhong Tang
Summary: Conjugated polymers with aggregation-induced emission (AIE) characteristics have shown promising applications in biomedical fields such as fluorescence imaging (FLI) and photodynamic therapy (PDT) due to their unique properties and functions. The color-tuned fluorescence emission and efficient O-1(2) generation ability of AIE conjugated polymers have been highlighted for their potential in anticancer and antibacterial areas. Challenges and future perspectives for the development of AIE conjugated polymers are also discussed.
Review
Chemistry, Inorganic & Nuclear
Hande Gunduz, Safacan Kolemen, Engin U. Akkaya
Summary: The detection and imaging of singlet oxygen is a challenging task due to its short half-life and solvent sensitivity. Selective probes for singlet oxygen are crucial in the presence of other oxidizing species, and smart designs are already making progress in pushing signalling events towards longer wavelengths of the visible spectrum.
COORDINATION CHEMISTRY REVIEWS
(2021)
Article
Nanoscience & Nanotechnology
Xiaojing Liu, Antoine Mazel, Stefan Marschner, Zhihua Fu, Marius Muth, Frank Kirschhoefer, Gerald Brenner-Weiss, Stefan Braese, Stephane Diring, Fabrice Odobel, Ritesh Haldar, Christof Woll
Summary: The study demonstrates that the use of highly spatioselective photochemistry can increase the structural complexity of MOF-based architectures, leading to the delamination of top layers and the formation of two-dimensional MOF sheets with defined thickness. This opens up new possibilities for fabricating planar MOF structures using photolithography.
ACS APPLIED MATERIALS & INTERFACES
(2021)
Article
Biochemistry & Molecular Biology
Qiuyun Yang, Jiri Vana, Petr Klan
Summary: Irradiation of coumarin-3-carboxylic acid in acetonitrile and methanol solutions results in complex multistep photochemical transformations. The reaction intermediates and final products were identified using various spectroscopic and analytical techniques. The study provides detailed insights into the complex phototransformations of coumarin derivatives, which are widely used in photophysical and photochemical applications.
PHOTOCHEMICAL & PHOTOBIOLOGICAL SCIENCES
(2022)
Article
Chemistry, Multidisciplinary
Zijuan Wang, Hao Geng, Chenyao Nie, Chengfen Xing
Summary: This review presents the application of conjugated polymers (CPs) in antimicrobial resistance (AMR). CPs, with excellent light-harvesting properties and biocompatibility, can combat AMR through photodynamic antimicrobial therapy (PACT) and photothermal therapy (PTT). The types of CPs, antimicrobial mechanisms, and application in antimicrobial treatments are summarized.
CHINESE JOURNAL OF CHEMISTRY
(2022)
Article
Chemistry, Inorganic & Nuclear
Antara Garai, Marco Villa, Marianna Marchini, Sajal Kumar Patra, Tanmoy Pain, Sruti Mondal, Paola Ceroni, Sanjib Kar
Summary: The newly synthesized platinum(II) porphyrin complex exhibits excellent photophysical properties, with potential applications in the fields of photodynamic therapy and oxygen sensors.
EUROPEAN JOURNAL OF INORGANIC CHEMISTRY
(2021)
Article
Materials Science, Multidisciplinary
Jie Zhang, Zihuayuan Yang, Yan-Hong Li, Samran Durrani, Ai-Ping Pang, Yichen Gao, Fu-Gen Wu, Fengming Lin
Summary: This study presented super-stable carboxymethyl chitosanpolyethyleneimine-protoporphyrin IX nanoparticles (CMCS-PEI-PpIX NPs) for effective photodynamic inactivation of bacteria and fungi with excellent biocompatibility. The NPs exhibited exceptional photoinactivation toward a broad range of microbes with record low minimal bactericidal concentrations, showing high stability and negligible cytotoxicity. The development of CMCS-PEI-PpIX NPs provides a promising route for improving microbicidal PDT efficacy in clinic treatment of microbial infections.
ACS APPLIED POLYMER MATERIALS
(2022)
Article
Engineering, Environmental
Kai Cheng, Lizhong Zhang, Garrett McKay
Summary: In this study, a dual-probe method combining hydrophilic 1O2 probe furfuryl alcohol (FFA) and its structural analogue furfuryl amine (FFAm) was used to quantify [1O2] in DOM samples. Results showed that the reactivity of FFAm was significantly higher than FFA at pH 7 and 8. The surface [1O2] of Suwannee River humic acid (SRHA) was determined to be 60 pM, which is 96-fold higher than the aqueous-phase [1O2] measured with FFA. This work expands the understanding of DOM microheterogeneous photochemistry and offers insights into the spatial distribution of 1O2 and other photochemically produced reactive intermediates.
ENVIRONMENTAL SCIENCE & TECHNOLOGY
(2023)
