Article
Chemistry, Multidisciplinary
Yu Shi, Zhao-Sheng Zhang, Jiang Shao, Chen Fu, Zhao-Dong Li, Zi-Ning Cui
Summary: A series of photoinduced palladium-catalyzed 1,3-diene-selective fluoroalkylamination derivatives were synthesized via diversity-oriented synthesis. These compounds exhibited significant antibacterial activity against Xanthomonas oryzae pv. oryzae, indicating their potential as antibacterial agents.
CHINESE CHEMICAL LETTERS
(2024)
Article
Engineering, Environmental
Ze Zhang, Jingyu Sun, Xue Chen, Guizhu Wu, Zhengguo Jin, Donggang Guo, Lu Liu
Summary: The Ni/rGO nanocomposite exhibited highly effective antibacterial efficacy through the synergistic effects of photothermal therapy and oxidative damage, making it a promising disinfection material for water pollution purification caused by pathogenic bacteria.
JOURNAL OF HAZARDOUS MATERIALS
(2021)
Review
Biotechnology & Applied Microbiology
Jun Yang, Chang Liu, Hui Sun, Ying Liu, Zhaogang Liu, Dan Zhang, Gang Zhao, Qiang Wang, Donghong Yang
Summary: Titanium and Titanium alloys are widely used in oral and maxillofacial surgery as biomedical implants. However, in specific clinical populations, the failure rate of these implants is higher. Studies show that the presence of Reactive Oxygen Species (ROS) increases in the bone tissue surrounding the implants, leading to oxidative stress in the host. Developing antibacterial technologies, incorporating active elements, and creating ROS-responsive implant materials are important areas of research.
FRONTIERS IN BIOENGINEERING AND BIOTECHNOLOGY
(2022)
Article
Chemistry, Physical
Chunxiang Wan, Yuzhen Pan, Zhen Chen, Jinglu Hu, Zhe Zhang, Yawen Sun, Wei Ma
Summary: The study successfully prepared a novel composite material ZnO-Al2O3/GO with excellent piezocatalytic and antibacterial abilities, capable of degrading RhB solution and inhibiting the growth of Bacillus. By doping Zn ions and Al atoms, the material exhibited increased stability, conductivity, and enhanced catalytic efficiency of ZnO.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2021)
Article
Biotechnology & Applied Microbiology
Yangzi Yang, Chengwei Wang, Ning Wang, Jiaxin Li, Yingchun Zhu, Jiantao Zai, Jingke Fu, Yongqiang Hao
Summary: Researchers have developed a biocompatible Cu3SnS4 nanoflakes that can generate reactive oxygen species (ROS) under visible light, leading to broad-spectrum antibacterial effects. The nanoflakes also exhibit near infrared absorption and high photothermal conversion efficiency, enabling photothermal disruption of bacterial membranes. In addition, Cu3SnS4 nanoflakes can accelerate wound healing and be used for surface-enhanced Raman scattering imaging for bacteria detection.
JOURNAL OF NANOBIOTECHNOLOGY
(2022)
Article
Chemistry, Multidisciplinary
Pu-Ting Dong, Yuewei Zhan, Sebastian Jusuf, Jie Hui, Zeina Dagher, Michael K. Mansour, Ji-Xin Cheng
Summary: This study reveals that blue light can inactivate catalase in fungal cells, making them highly susceptible to reactive oxygen species attack. It is also found that the combination of photoinactivation of catalase and ROS-generating agents effectively eradicates various fungal species. Furthermore, catalase photoinactivation enhances macrophage killing of Candida albicans.
Article
Chemistry, Multidisciplinary
Banishree Sahoo, Lipsa Leena Panigrahi, Sonali Jena, Suman Jha, Manoranjan Arakha
Summary: This study investigates the role of oxidative stress generated at the interface of biosynthesized selenium nanoparticles (SeNPs) in defining antimicrobial and anti-biofilm activity. SeNPs with an average size of 119 nm were rapidly synthesized during the growth of Staphylococcus aureus using green chemistry principles. The antimicrobial study showed strong antimicrobial activity against both Gram-positive and Gram-negative bacteria, as well as anti-biofilm activity. The mechanism behind the antimicrobial activity of biosynthesized SeNPs was found to be the generation of reactive oxygen species (ROS) at the SeNPs interface, causing bacterial cell death through leakage of cytoplasmic contents.
Article
Chemistry, Physical
Haiyin Zhan, Qixing Zhou, Mingmei Li, Ruiren Zhou, Yueshuang Mao, Pengfei Wang
Summary: By designing B-x-C3N4 material, the efficiency of photocatalytic activity is greatly improved due to the enhanced O-2 adsorption energy and electron transfer efficiency. This leads to a significant enhancement in photocatalytic degradation.
APPLIED CATALYSIS B-ENVIRONMENTAL
(2022)
Article
Polymer Science
Dmitriy A. Serov, Ilya Baimler, Dmitriy E. Burmistrov, Alexey S. Baryshev, Denis Yanykin, Maxim E. Astashev, Alexander Simakin, Sergey Gudkov
Summary: Bacterial contamination in the meat processing industry, especially on cutting boards and equipment, is a major factor causing product deterioration and loss of consumer properties. To tackle this issue, two approaches can be adopted: creating coatings with increased strength to prevent the formation of favorable conditions for bacterial growth, or developing materials with antimicrobial properties. In this study, a new coating made of polytetrafluoroethylene (PTFE) and Fe2O3 nanoparticles was developed. The coating showed bacteriostatic effects and increased the generation of reactive oxygen species (ROS). The composite material has potential applications for covering cutting boards and polymeric surfaces in the meat processing industry.
Article
Chemistry, Physical
Wenying Yu, Xiaolei Zhang, Yan Wang, Qiaoyun Zhang, Tong Chen, Yihe Zhang, Na Tian, Hongling Ou, Hongwei Huang
Summary: Semiconductor photocatalysis faces limitations in terms of location and time. BiOBrxI1-x solid solutions with oxygen vacancies (OVs) prepared by direct precipitation exhibit efficient catalytic performance for degrading tetracycline hydrochloride and killing Escherichia coli in the dark. BiOBr0.93I0.07 prepared in ethylene glycol shows the most prominent catalytic activity, and the catalysts can be regenerated in-situ by UV light after prolonged use.
APPLIED SURFACE SCIENCE
(2021)
Article
Engineering, Environmental
Shuwen Zhang, Ming Zheng, Ge Yang, Ting Zhang, Jason T. Magnuson, Honghong Chen, Chunmiao Zheng, Wenhui Qiu
Summary: This study evaluated the solar activating properties of CaO2 for inactivating pathogens in contaminated water and explored the contributions of reactive species to pathogen inactivation. Direct photoinactivation and indirect mechanisms were found to be the main pathways for pathogen inactivation, with different reactive species playing corresponding roles. Experimental results also showed cell membrane rupture and DNA damage during the photoinactivation process. Furthermore, it was found that copper and iron ions promoted pathogen inactivation, while fulvic acids and humic acid had the opposite effect. This study revealed the potential of CaO2/sunlight for pathogen inactivation and laid a foundation for its application in surface water.
Article
Chemistry, Inorganic & Nuclear
Neeraj Tejwan, Mousumi Kundu, Noyel Ghosh, Sharmistha Chatterjee, Anirudh Sharma, Th Abhishek Singh, Joydeep Das, Parames C. Sil
Summary: Nowadays, the synthesis of carbon dots (CDs) from renewable sources has gained significant attention due to their availability, low cost, aqueous solubility, and biocompatibility. In this study, water-soluble CDs with sizes ranging from 1 to 4 nm were synthesized from red Korean ginseng root extract using microwave irradiation. The synthesized CDs exhibited excitation-dependent fluorescence emission and were used as a bioimaging agent. Additionally, the CDs were loaded with the natural flavonoid, Rutin, to evaluate their efficacy as a drug delivery system. The results showed that the CDs had a drug loading content of 12.7% and a sustained drug release behavior under physiological conditions. Furthermore, the CDs exhibited excellent free radical scavenging activity in cell-free and intracellular conditions, which was further enhanced by loading them with the drug. The CDs and the nanohybrids (Rutin-loaded CDs) showed minimal toxicity in normal kidney epithelial cells up to a concentration of 100 mu g/mL. Both the CDs and the nanohybrids demonstrated a dose-dependent antibacterial effect against gram-negative and gram-positive bacteria under light exposure and dark conditions, with enhanced antibacterial activity observed under light exposure due to the production of reactive oxygen species (ROS) and subsequent DNA damage. Overall, our synthesized green CDs hold promise for biomedical applications due to their facile synthesis, low cytotoxicity, excellent fluorescent properties, and potential as drug delivery systems.
INORGANIC CHEMISTRY COMMUNICATIONS
(2022)
Article
Agriculture, Multidisciplinary
Hong-Wu Liu, Shan-Shan Su, Si-Yue Ma, Ting Li, Wang Fang, Yue Ding, Shi-Tao Liu, Jun-Rong Zhang, Hong-Mei Xiang, Xiang Zhou, Song Yang
Summary: Reactive oxygen species (ROS) are considered as effective targets for combating pesticide-resistant bacteria. In this study, simple 1,2,3,4-tetrahydro-beta-carboline derivatives containing a 3-aminopropanamide moiety were synthesized and evaluated for their antibacterial activity. Three compounds demonstrated significant antibacterial potency, with Compound I-29 exhibiting excellent in vitro and in vivo activities against Xanthomonas oryzae pv. oryzae, Compound I-16 showing good activity against Xanthomonas axonopodis pv. citri, and Compound I-6 displaying excellent in vitro bioactivity and significant protective activity against Pseudomonas syringae pv. actinidiae. Mechanism studies revealed that these compounds disrupt the redox system to kill bacteria. These simple derivatives have potential as leads for the discovery of bactericidal agents.
JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY
(2023)
Article
Materials Science, Multidisciplinary
Laura Sanchez-Abella, Virginia Ruiz, Adrian Perez-San Vicente, Hans-Jurgen Grande, Iraida Loinaz, Damien Dupin
Summary: The versatile synthetic method can produce stable and mechanically enhanced graphene-PEG nanocomposite hydrogels with potential antioxidant/pro-oxidant activity. Incorporating graphene additives can improve the mechanical properties and thermal stability of the hydrogels, while also influencing their radical scavenging activity and biocompatibility. These findings suggest a promising avenue for designing bioactive functional nanocomposite hydrogels for ROS-mediated applications.
JOURNAL OF MATERIALS SCIENCE
(2021)
Article
Biochemistry & Molecular Biology
Hiromi Kurokawa, Thomas Kiran Marella, Hirofumi Matsui, Yutaka Kuroki, Makoto M. Watanabe
Summary: β-glucan has shown effectiveness in immune regulation and blood pressure suppression. Seaweed laminaran, a β-1,3/1,6-glucan, can be a sustainable source of β-glucan production using CO2 and seawater as growth substrates. Laminaran has been found to scavenge reactive oxygen species (ROS) and attenuate cytotoxicity caused by drugs like indomethacin and dabigatran.
Article
Chemistry, Multidisciplinary
Chandunika R. Kalaiselvan, Nanasaheb D. Thorat, Niroj Kumar Sahu
Summary: The research reported the synthesis and morphological evolution of MnFe2O4 nanocubes using a hydrothermal process, demonstrating high saturation magnetization and strong magnetic resonance imaging properties. MNCs were investigated for magnetic hyperthermia and MRI applications, showing concentration-dependent heat response and anticancer activities.
Review
Pharmacology & Pharmacy
Arpita P. Tiwari, Nanasaheb D. Thorat, Sabrina Pricl, Rakesh M. Patil, Sonali Rohiwal, Helen Townley
Summary: Bioinks are crucial for the fabrication of artificial living-tissue constructs using 3D bioprinting technologies, with a significant application in cancer management. The ability to recreate tumor microenvironments using 3D bioprinting is a promising approach for drug development and in vitro cancer modeling.
DRUG DISCOVERY TODAY
(2021)
Review
Neurosciences
Vanishree Rao, Gautam Kumar, R. J. A. Vibhavari, Krishnadas Nandakumar, Nanasaheb D. Thorat, Mallikarjuna Rao Chamallamudi, Nitesh Kumar
Summary: This review summarizes the possible mechanisms of drug resistance to temozolomide in the treatment of glioblastoma, including the O-6-methylguanine-DNA methyltransferase-mediated DNA repair system and other potential mediators such as indirect DNA repair systems, efflux mechanisms, epigenetic modulation, microenvironmental influences, and autophagy-apoptosis processes.
CNS & NEUROLOGICAL DISORDERS-DRUG TARGETS
(2023)
Article
Chemistry, Multidisciplinary
Bekhti Sari Fadia, Nassima Mokhtari-Soulimane, Bensalah Meriem, Nacer Wacila, Badi Zouleykha, Rouigueb Karima, Tewfik Soulimane, Syed A. M. Tofail, Helen Townley, Nanasaheb D. Thorat
Summary: Gold nanoparticles possess various plasmonic properties that can be utilized for diagnostic and therapeutic applications in biomedicine. This study investigates the effects of small size GNPs on the vital organs of rats and reveals their high sensitivity to oxidative stress, with the degree of impact depending on the antioxidant defense system.
Article
Chemistry, Multidisciplinary
Satish S. Phalake, Manohar S. Lad, Ketaki V. Kadam, Syed A. M. Tofail, Nanasaheb D. Thorat, Vishwajeet M. Khot
Summary: The optimization of manganese-substituted iron oxide nanoferrites has been successfully achieved using the chemical co-precipitation method. The study found that the crystallite size and magnetization vary with increasing Mn2+ concentration. The self-heating characteristics of the nanoparticles were evaluated using specific absorption rate and intrinsic loss power, and Mn0.75Fe0.25Fe2O4 showed superior induction heating properties, making it a promising candidate for hyperthermia applications.
Review
Pharmacology & Pharmacy
Quratulain Babar, Ayesha Saeed, Sivasubramanian Murugappan, Dinesh Dhumal, Tanveer Tabish, Nanasaheb D. Thorat
Summary: In recent years, immunotherapy using monoclonal antibodies has shown success in cancer treatment, particularly with PD-1 and PD-L1. Dostarlimab, an immune checkpoint inhibitor, has been proven effective in treating dMMR in endometrial cancer patients and has gained approval in 2021. This article provides a comprehensive overview of dostarlimab and its therapeutic ability, highlighting its potential as an alternative cancer treatment with fewer side effects.
DRUG DISCOVERY TODAY
(2023)
Review
Materials Science, Biomaterials
Sagnik Nag, Bikramjit Bhattacharya, Swagata Dutta, Debashmita Mandal, Sayantanee Mukherjee, Krishnan Anand, Rajalakshmanan Eswaramoorthy, Nanasaheb Thorat, Saurabh Kumar Jha, Sukhamoy Gorai
Summary: Glioblastoma (GBM) is an aggressive cancer with limited treatment options. Recent research on tumor microenvironments (TME) has shown that extracellular vesicles (EVs), specifically exosomes, play a crucial role in GBM progression and carry important biomarkers. Exosome-based GBM examination offers a non-invasive and early diagnostic method, as well as potential therapeutic opportunities for GBM treatment.
ACS BIOMATERIALS SCIENCE & ENGINEERING
(2023)
Review
Chemistry, Multidisciplinary
Sivasubramanian Murugappan, Syed A. M. Tofail, Nanasaheb D. Thorat
Summary: Brain cancer has a high mortality rate and low five-year survival rate. Diagnosing and monitoring the progression of brain tumors noninvasively and in real time is challenging, creating a need for early detection tools. Raman spectroscopy, known for its ability to accurately represent molecular markers, has been used in various studies for brain tumor diagnostics and monitoring.
Review
Chemistry, Multidisciplinary
Sayantanee Mukherjee, Sagnik Nag, Nobendu Mukerjee, Swastika Maitra, Raman Muthusamy, Neeraj Kumar Fuloria, Shivkanya Fuloria, Manab Deb Adhikari, Krishnan Anand, Nanasaheb Thorat, Vetriselvan Subramaniyan, Sukhamoy Gorai
Summary: Ovarian cancer is a common gynecological cancer worldwide, and the lack of early detection methods poses a significant health crisis. The discovery of extracellular vesicles, particularly exosomes, has provided new insights into cancer understanding. Tumor-derived exosomes play a crucial role in ovarian cancer progression by influencing cell growth, immune suppression, angiogenesis, metastasis, and resistance development. They also offer potential biomarkers for ovarian cancer diagnosis and show promise in its treatment.
Review
Engineering, Biomedical
Mohammad Suhaan Dar, Tanveer A. Tabish, Nanasaheb D. Thorat, G. Swati, Niroj Kumar Sahu
Summary: The rapid development of powerful anti-oncology medicines has been made possible by advances in nanomedicine. Photothermal therapy (PTT) is a precise, less hazardous, and easy-to-control treatment that uses nanomaterials to convert laser energy into localized heat, resulting in apoptosis and tumor eradication. Graphene quantum dots (GQDs) have received considerable attention in the field of healthcare technologies due to their excellent properties, and this comprehensive review examines their recent progress in PTT applications.
APL BIOENGINEERING
(2023)
Review
Nanoscience & Nanotechnology
Tanima Bhattacharya, Subham Preetam, Basab Ghosh, Tulika Chakrabarti, Prasun Chakrabarti, Shailesh Kumar Samal, Nanasaheb Thorat
Summary: Applications of nanotechnology have revolutionized drug delivery methods for cancer treatment by using nanocarriers like synthetic polymers, nanotubes, micelles, dendrimers, magnetic nanoparticles, quantum dots, lipid nanoparticles, and nano-biopolymeric substances. These nanocarriers have shown promising results in preclinical and clinical trials by minimizing side effects and delivering drugs to targeted sites. Biopolymeric nanoparticles, in particular, have received attention for their cost-effectiveness, biodegradability, treatment efficacy, and ability to cross the blood-brain barrier.
ACS APPLIED BIO MATERIALS
(2023)
Article
Chemistry, Multidisciplinary
Satish S. Phalake, Sandeep B. Somvanshi, Syed A. M. Tofail, Nanasaheb D. Thorat, Vishwajeet M. Khot
Summary: This study investigated the effectiveness of MIONP-based magneto-chemotherapy (MCT) in a 3D breast cancer model, using advanced 3D in vitro tumor models as a promising alternative to replicate the complete range of tumor characteristics. The results demonstrated that MCT using MIONPs reduced the viability of breast cancer cells, with the most promising therapeutic effects observed in the 3D cancer model.
Article
Chemistry, Multidisciplinary
Satish S. Phalake, Sandeep B. Somvanshi, Syed A. M. Tofail, Nanasaheb D. Thorat, Vishwajeet M. Khot
Summary: Localized heat generation from manganese iron oxide nanoparticles conjugated with chemotherapeutics under the exposure of an alternating magnetic field can revolutionize targeted breast cancer therapy. Advanced 3D in vitro tumor models are explored as a promising alternative to replicate the complete range of tumor characteristics. The effectiveness of magneto-chemotherapy using chitosan-coated MIONPs is investigated in a 3D breast cancer model, with successful reduction in cancer cell viability.
Article
Materials Science, Biomaterials
Nanasaheb D. Thorat, Ewa Dworniczek, Grace Brennan, Grzegorz Chodaczek, Rabah Mouras, Victoria Gascon Perez, Christophe Silien, Syed A. M. Tofail, Joanna Bauer
Summary: This study introduces a new approach using gold nanocapsules for photothermal therapy against multidrug-resistant Staphylococcus aureus. The nanocapsules disrupt bacterial cell wall and membrane through photothermal action, prevent biofilm formation, and target multiple drug-resistant bacteria effectively. The photothermal effect combined with reactive oxygen species generation and loss of transmembrane potential contributes to successful bacterial inactivation within 30 minutes, without any observed development of resistance.
JOURNAL OF MATERIALS CHEMISTRY B
(2021)
Article
Chemistry, Multidisciplinary
Sonali S. Rohiwal, Z. Ellederova, Arpita P. Tiwari, Mohammed Alqarni, Sara T. Elazab, Gaber El-Saber Batiha, Shivaji H. Pawar, Nanasaheb D. Thorat
Summary: The glycation of proteins is seen as an effective method to enhance their functional properties for wound healing applications. The conjugates also show a significant increase in radical scavenging activity, making them a promising antioxidant strategy. The BSA-dextran conjugates, developed through a simple conjugation process, exhibit higher electrophoretic mobility, surface charge, and fluorescence and wavelength shifts, suggesting potential for wound healing applications.
Article
Chemistry, Physical
Wiem Bouali, Muejgan Yaman, Nurgul Seferogu, Zeynel Seferogu
Summary: Novel chemosensors, including coumarin hydrazide, were synthesized and demonstrated the ability to detect cyanide ions through absorption and fluorescence turn-off response. The reaction mechanism between the sensors and the ions was determined through experimental and theoretical studies. The sensors exhibited high detection ability and effectiveness.
JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY
(2024)
Article
Chemistry, Physical
Parinaz Abdollahian, Hassan Heidari, Soheila Hassanzadeh, Mohammad Hasanzadeh
Summary: This study successfully synthesized various types of thiolated-graphene quantum dots (GQDs) and utilized them in a one-droplet microfluidic paper-based analytical device for the simultaneous multi-sensing of heavy metal ions. The GQDs were functionalized and stabilized on the surface of hydrophobic fiber-glass, enabling colorimetric chemosensing of ions including iron, copper, cobalt, mercury, chrome, manganese, and nickel. The results were confirmed using fluorescence spectrometry, and the platform showed potential for facile metal ion detection in human urine models and environmental fluids.
JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY
(2024)
Article
Chemistry, Physical
S. L. Barrett, C. Meyer, E. Cwiklik, V Fieglein, M. Burns, J. Guerrero, W. J. Brittain
Summary: Laboratory illumination is strong enough to create a photostationary state (PSS) of amphiphilic azo-benzene compounds in water. The [cis]PSS/[trans]PSS ratios were observed to be 0.33-1.2 in D2O and 0.37-3.8 in dimethyl sulfoxide-d6. ortho-Fluoroazobenzene amphiphiles show higher cis-isomer concentration at equilibrium compared to non-fluorinated compounds due to differences in optical absorption profiles. The kinetics of isomerization were measured using UV-Vis spectroscopy and the ratio of trans-to-cis rates does not directly correlate with the observed PSS. The half-life for PSS formation is 40 minutes for fluorinated compounds and 80 minutes for non-fluorinated compounds.
JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY
(2024)
Article
Chemistry, Physical
Jalil Khodayari, Karim Zare, Omid Moradi, Mohammadreza Kalaee, Niyaz Mohammad Mahmoodi
Summary: In this study, an eco-friendly biocomposite (CMC/MIL/CuO) was synthesized and characterized, and its ability to decolorize Acid Blue 92 dye was investigated. The results showed that CMC/MIL/CuO can be used as a suitable photocatalyst for dye decolorization.
JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY
(2024)
Article
Chemistry, Physical
Bo Ma, Qian Xu, Huajun Yao, Yalin Chen, Yiyang Wang, Yunfei Yang, Hongfang Shen, Youjun Lu
Summary: This study designed an integrated structure of Cu2O@Au/Cu2O heterostructure particles, which achieved significantly enhanced photocatalytic performance by simultaneously considering the integrated structural characteristics and localized surface plasmon resonance (LSPR) effect. Experimental characterization and theoretical simulation confirmed the three-in-one synergy of the integrated heterostructure, including the LSPR effect of Au nanoparticles, the light scattering based on core-shell heterostructure, and the effective charge separation based on inter-embedded heterostructure. The concept of integrated heterostructure cooperated with LSPR effect provides a new strategy for designing future catalysts.
JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY
(2024)
Article
Chemistry, Physical
Robert G. H. Marks, Sarah P. Rockel, Klaus Kerpen, Holger Somnitz, Philipp R. Martin, Maik A. Jochmann, Torsten C. Schmidt
Summary: This study investigated the pH-dependent photolysis of phosphonates in aqueous solutions and analyzed the transformation products. The results showed that the photolysis rate of phosphonates was influenced by pH and light conditions. Furthermore, the carbon kinetic isotope effects varied for different types of phosphonates.
JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY
(2024)
Article
Chemistry, Physical
T. M. Naren Vidaarth, S. Surendhiran, K. S. G. Jagan, S. Savitha, K. S. Balu, A. Karthik, B. Kalpana
Summary: In this study, magnesium oxide nanoparticles were synthesized using plant seed extracts, which exhibited excellent performance in removing dyes from textile water bodies. These nanoparticles also showed strong antibacterial and antioxidant properties.
JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY
(2024)
Article
Chemistry, Physical
Mikhail Yu. Ovchinnikov, Vyacheslav A. Antipin, Sergey L. Khursan
Summary: In this study, the recombination of separated ion-radical states (SIRS) in PAPh films was analyzed, and it was found that the contribution of X-SIRS recombination to total luminescence varies with different environments. It was also shown that the recombination of labile SIRS is independent of the nature of the atmosphere. The study theoretically substantiated that SIRS recombination can occur via the transfer of both positive and negative charges, and the efficiency of thermal activation of recombination processes depends on the ratio of radiant and conductive channels of energy transfer.
JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY
(2024)
Article
Chemistry, Physical
Sumaira Naeem, Tayyaba Mubashir, Mudassir Hussain Tahir, Jawayria Najeeb, Ahmed Z. Dewidar, Hosam O. El-ansary, Silas Lagat, Anthony Pembere
Summary: This study presents an alternative methodology using machine learning for the selection of novel organic molecules to develop high-performance organic solar cell devices.
JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY
(2024)
Article
Chemistry, Physical
D. Thirumoolan, S. Ragupathy, S. Renukadevi, P. Rajkumar, Rajakumar S. Rai, R. M. Saravana Kumar, Imran Hasan, Mani Durai, Young-Ho Ahn
Summary: In this study, the photodegradation of brilliant green dye was studied in relation to the comparative photocatalytic activity of pure ZnO and Ni-doped ZnO/CSAC. The Ni-doped ZnO/CSAC showed a higher photocatalytic degradation rate under visible light irradiation, suggesting its potential as an effective wastewater treatment material.
JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY
(2024)
Article
Chemistry, Physical
Ajmal Khan, Zhidong Chang, Wenjun Li, Xiaohui Ma, Mei Dong, Liang Geng, Ghulam Yasin, Shuaib Khan, Hira Anwar
Summary: Due to its functional structure and tunable shape, 2D zeolitic imidazole framework (ZIFs) have gained significant interest in various fields. In this study, thin ZIF-8 sheets were prepared using a mixed solvent and then delaminated into single layers through physical sonication. These hexagonal sheets exhibited high stability and controlled morphology, and showed excellent performance in dye degradation compared to 3D ZIF-8 crystals.
JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY
(2024)
Article
Chemistry, Physical
Vitaly A. Podshibyakin, Evgenii N. Shepelenko, Leonid D. Popov, Tatyana M. Valova, Anton O. Ayt, Lyudmila G. Kuzmina, Anton V. Lisovin, Oleg N. Burov, Mikhail E. Kletskii, Alexander D. Dubonosov, Vladimir A. Bren
Summary: Bifunctional hybrids containing photochromic indolyl(thienyl) diarylethenes and an ionochromic rhodamine moiety connected by a dimethylene spacer were synthesized. These hybrids exhibit absorption at 450-455 nm and fluorescence at 560 nm in toluene. UV light triggers ring-closed non-fluorescent diarylethene formation, which can be reversed under visible light or in the dark. In the presence of H+ cation, a naked eye effect is observed with the opening of the rhodamine-spirolactam ring and a pink-crimson coloration at 561 nm accompanied by intense long-wavelength emission at 586 nm. This process is reversible by exposure to triethylamine, as confirmed by NMR experiments. The light-induced isomerizations and proton-induced transformations were explained using computational methods. Reversible switching of fluorescent properties can be achieved by light irradiation and proton.
JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY
(2024)
Article
Chemistry, Physical
Majid Sharifi-Rad, Hazem S. Elshafie, Pawel Pohl
Summary: The study investigated the synthesis of silver nanoparticles using Lallemantia royleana leaf extract, characterized their physico-chemical properties, and evaluated their biopharmaceutical and catalytic applications. The synthesized nanoparticles showed good stability and exhibited higher antioxidant, antimicrobial, anti-inflammatory, anti-arthritic, and cytotoxic activities compared to the leaf extract. These results provide a promising green synthesis route for silver nanoparticles with potential biomedical and catalytic applications.
JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY
(2024)
Article
Chemistry, Physical
Meera Moydeen Abdul Hameed, Badr M. Thamer
Summary: Security encoding using photochromism is an effective method for creating authentication substrates. A unique photochromic ink has been developed that emits light continuously under UV rays and darkness. The ink is produced by dispersing lanthanidedoped aluminate nanoparticles in a polymer binder. The resulting composite ink can be used to create transparent films on paper, and the stamped patterns become visible under UV rays, changing from colorless to green.
JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY
(2024)
Article
Chemistry, Physical
Monika Lamoria, Rita Kakkar, Marilyn Daisy Milton
Summary: Four novel water-soluble benzimidazolium and bis-benzimidazolium salts with a fluorophore-spacer-receptor design were synthesized and demonstrated to selectively detect Fe3+ ions with large Stokes shifts. The binding mechanism and detection performance were investigated through theoretical and experimental studies.
JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY
(2024)
