Article
Chemistry, Physical
Muhammad Faizan Nazar, Muhammad Atif Saleem, Hadiqa Basharat, Asifa Nasrullah, Hafsa Asif, Muhammad Ashfaq, Rabia Jamil
Summary: Organic nanoparticles are gaining important consideration in various applications, but their solubility and bioavailability remain challenges. Using volatile microemulsion technology to produce water-dispersible organic nanopowders with higher bioavailability and longer shelf-life is a promising approach.
COLLOID AND INTERFACE SCIENCE COMMUNICATIONS
(2021)
Article
Biochemistry & Molecular Biology
Mihalj Posa
Summary: Bile acid anions are steroidal biosurfactants that form micelles through the hydrophobic effect. Monoketo derivatives of cholic acid are important for biopharmaceutical examinations due to their reduced membrane toxicity. The formation of primary and secondary micelles is separated, and the new mechanism of secondary micelle formation is explained through the analysis of spin-lattice relaxation time dependence on surfactant concentration. The association of 7-oxodeoxycholic acid anions is observed through two critical micellar concentrations and the aggregation number of the micelle changes abruptly within a specific concentration interval.
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2023)
Article
Biochemistry & Molecular Biology
Jing Yu, Kai Xu, Xiaojing Chen, Xiaodan Zhao, Yuxuan Yang, Dake Chu, Yongliang Xu, Qiang Zhang, Yanfeng Zhang, Yilong Cheng
Summary: In this study, an advanced hydrogel was prepared through one-pot free-radical copolymerization, demonstrating excellent mechanical properties and biocompatibility, with vast potential in biomedical and flexible electronic applications.
Article
Chemistry, Applied
Diana C. Novo, Chengzhe Gao, Qingqing Qi, Laura I. Mosquera-Giraldo, Glenn A. Spiering, Robert B. Moore, Lynne S. Taylor, Kevin J. Edgar
Summary: Crystallization inhibitors in amorphous solid dispersions enable supersaturation of drug solutions, and olefin cross-metathesis has been used to provide candidate matrix polymers. By varying the nature and degree of substitution of the bile acid, the conjugates demonstrate enhanced ability to maximize bioactive supersaturation.
CARBOHYDRATE POLYMERS
(2022)
Article
Environmental Sciences
Di Liu, Yunning Chen, Renquan Guan, Jie Zhao, Huimin Jin, Siyi Zhang, Qingkun Shang
Summary: In this study, a new heterojunction photocatalyst was prepared by self-assembly and bonding with titanium dioxide, and its photocatalytic performance and degradation products under visible light were investigated. The high photocatalytic activity of the catalyst was revealed through spectroscopy, current density, resistance, and other experiments, and its degradation ability towards different pollutants was studied.
Review
Engineering, Environmental
Ruifeng Du, Ke Xiao, Baoying Li, Xu Han, Chaoqi Zhang, Xiang Wang, Yong Zuo, Pablo Guardia, Junshan Li, Jianbin Chen, Jordi Arbiol, Andreu Cabot
Summary: An oxygen-doped tubular g-C3N4 material with uniformly dispersed nickel nanoparticles was developed for efficient photocatalytic hydrogen peroxide generation.
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Nanoscience & Nanotechnology
Gongwen Tang, Chong Chen, Dongxia Wu, Zhishan Yan, Tingting Ren, Xiangyu Hou, Man Zhao, Shancan Fu, Lihua Fan
Summary: In this study, halloysite nanotubes (HNTs) were modified to encapsulate the green corrosion inhibitor praseodymium (III) cations (Pr3+) using polyaniline (PANI), resulting in HNTs@PANI@Pr3+ nanoparticles. These nanoparticles were then incorporated into a waterborne epoxy coating, creating a nanocomposite coating with excellent anticorrosion properties.
ACS APPLIED MATERIALS & INTERFACES
(2023)
Article
Chemistry, Multidisciplinary
Yanjun Gong, Zhaozhen Cao, Zongze Zhang, Rongjuan Liu, Fenghua Zhang, Jingjing Wei, Zhijie Yang
Summary: Nanoscale curvature is crucial for regulating the chirality of self-assembled nanocomposites, as shown in this study. The supramolecular chirality depends on the curvature of the nanoparticles, with high curvature leading to opposite chirality compared to low curvature.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2022)
Article
Chemistry, Multidisciplinary
Puzhen Li, Cedric Malveau, X. X. Zhu, James D. Wuest
Summary: Hydrogels of bile acids and their salts show promise for various applications, but further molecular-level understanding is needed for designing improved materials. NMR spectroscopy has revealed the composition and dynamics of these hydrogels, showing potential for controlled drug delivery and cellular immobilization.
Article
Pharmacology & Pharmacy
Daniela Chirio, Simona Sapino, Giulia Chindamo, Elena Peira, Cristina Vercelli, Chiara Riganti, Maela Manzoli, Graziana Gambino, Giovanni Re, Marina Gallarate
Summary: This study investigated the use of calcium phosphate-coated nanoparticles for delivering chemotherapy drugs to osteosarcoma cells in humans and dogs. The results showed that the calcium phosphate coating increased drug uptake and cytotoxicity in both human and canine osteosarcoma cells.
Article
Electrochemistry
C. Barrientos, R. Moscoso, S. Moris, J. A. Squella
Summary: In this study, three new nitroaromatic compounds were synthesized and electrochemically studied on nanostructured electrodic platforms. It was found that these compounds were easily reducible, generating stable redox mediator couples.
JOURNAL OF THE ELECTROCHEMICAL SOCIETY
(2021)
Article
Chemistry, Physical
P. Morales-Gil, M. G. Montes de Oca-Yemha, F. Perez-Cruz, M. Romero-Romo, T. Ramirez-Silva, J. Aldana-Gonzalez, M. Palomar Pardave
Summary: In this study, the electrochemical modification of titanium dioxide nanotubes (TiO2 NTs) with gold or silver nanoparticles (NPs) was reported for the first time. The nucleation and growth mechanism of these NPs were investigated, and it was found that formation of the metal nanoparticles occurred through diffusion-controlled growth. Characterization of the modified TiO2 NTs surface confirmed the formation of quasi-spherical gold or silver NPs with an average diameter of 100 nm.
JOURNAL OF MOLECULAR LIQUIDS
(2023)
Article
Polymer Science
Manisha Sharma, Jyoti Mundlia, Tarun Kumar, Munish Ahuja
Summary: This study aims to produce luliconazole-loaded solid lipid nanoparticles using microwave-assisted technique. While microwave power and Pluronic F-68 concentration have an impact on particle size and zeta potential, they do not significantly affect the entrapment of luliconazole. The optimized solid lipid nanoparticles show high entrapment efficiency and excellent antifungal activity against Candida albicans and Aspergillus niger.
Article
Chemistry, Physical
Joeri Defillet, Marina Avramenko, Miles Martinati, Miguel Angel Lopez Carrillo, Domien Van der Elst, Wim Wenseleers, Sofie Cambre
Summary: In this study, the impact of specific surfactant choice and concentration on ATP sorting was systematically investigated. The results revealed the influence of diameter-dependent stacking pattern on the separation order and the role of cosurfactants. These findings provide insights into predicting the parameters required for separating specific chiral structures in just two ATP steps.
Article
Nanoscience & Nanotechnology
Amal Kanti Deb, Bhabananda Biswas, Mohammad Mahmudur Rahman, Yunfei Xi, Santosh Kumar Paul, Ravi Naidu
Summary: This study presents the ecofriendly synthesis of magnetite nanoparticles (Fe3O4 NPs)-immobilized halloysite nanotube (HNT) composite (Fe3O4@ HNT) for remediating arsenate [As(V)] from water. Fe3O4@HNT was easily separable by an external magnet and showed excellent efficiency in removing As(V) from groundwater. The material was also cost-effective, reusable, and biocompatible, making it a prospective composite for the sustainable eradication of arsenic and other metallic toxicants from wastewater.
ACS APPLIED NANO MATERIALS
(2022)
Article
Chemistry, Multidisciplinary
Guanqun Du, Alessandra Del Giudice, Viveka Alfredsson, Anna M. Carnerup, Kaizheng Zhu, Bo Nystrom, Yilin Wang, Luciano Galantini, Karin Schillen, Domagoj Belic
Summary: The condensation of DNA helices into hexagonally packed bundles and toroids is a fascinating example of functional organization of biological macromolecules at the nanoscale. Researchers have successfully reproduced a DNA-like condensation with supramolecular helices of small chiral molecules, suggesting a more general phenomenon. The study reveals unknown similarities between covalent and supramolecular non-covalent helical polyelectrolytes, potentially inspiring the construction of supramolecular versions of biological macromolecules in the future.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2022)
Article
Medicine, Research & Experimental
Sara Battista, Pierangelo Bellio, Lorenza Fagnani, Elena Allegritti, Lisaurora Nazzicone, Luciano Galantini, Giuseppe Celenza, Luisa Giansanti
Summary: Although primarily investigated for drug delivery, liposomes can also exhibit pharmacological activity based on their composition. The molecular structure of liposome components affects their interaction with bacterial cells and antimicrobial properties. Liposomal formulations with N-oxide are effective against Gram-positive bacteria.
MOLECULAR PHARMACEUTICS
(2022)
Article
Chemistry, Multidisciplinary
Hadar Nasi, Maria Chiara di Gregorio, Qiang Wen, Linda J. W. Shimon, Ifat Kaplan-Ashiri, Tatyana Bendikov, Gregory Leitus, Miri Kazes, Dan Oron, Michal Lahav, Milko E. van der Boom
Summary: Metal-organic frameworks based on tetrahedral pyridyl ligands can form a series of isostructural crystals with different metal ions and properties. By conducting cation exchanges, an iterative crystal-to-crystal conversion can be achieved, which is influenced by the stability of the resulting coordination nodes. The optical and magnetic properties of the crystals are controlled by the metal cation, and the crystals preserve their morphology, enabling quantitative comparison of their properties at both the ensemble and single-crystal level.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2022)
Article
Environmental Sciences
Neda Amanat, Berardino Barbati, Marta M. Rossi, Marco Bellagamba, Marco Buccolini, Luciano Galantini, Marco Petrangeli Papini
Summary: This study investigated the abilities of sugar-based synthetic surfactants and biosurfactants to dissolve and mobilize non-aqueous phase liquid components adsorbed on porous matrices. The results show that a synthetic surfactant from the APG family with a long fatty acid chain and a di-rhamnolipid biosurfactant with a shorter hydrophobic group offered the highest efficiency values.
Article
Nanoscience & Nanotechnology
Sara Battista, Mariana Koeber, Pierangelo Bellio, Giuseppe Celenza, Luciano Galantini, Guillem Vargas-Nadal, Lorenza Fagnani, Jaume Veciana, Nora Ventosa, Luisa Giansanti
Summary: The newly developed nanovesicle system of the quatsome family shows noticeable antibacterial activity, demonstrating great potential for the treatment of bacterial infections and can also serve as nanocarriers of pharmaceutical actives.
ACS APPLIED NANO MATERIALS
(2022)
Article
Biochemical Research Methods
Roberto Marotta, Alessandra Del Giudice, Libero Gurrieri, Silvia Fanti, Paolo Swuec, Luciano Galantini, Giuseppe Falini, Paolo Trost, Simona Fermani, Francesca Sparla
Summary: GAPDH is a key enzyme in the Calvin-Benson cycle and is regulated differently in land plants. This study reveals the structural basis of its regulation and the existence of different oligomeric states. The C-terminal extension of the B subunits plays a crucial role in inhibiting enzyme activity by preventing substrate binding. The whole mechanism is controlled by pyridine nucleotides.
ACTA CRYSTALLOGRAPHICA SECTION D-STRUCTURAL BIOLOGY
(2022)
Article
Chemistry, Multidisciplinary
Davide Piccinino, Eliana Capecchi, Valentina Trifero, Elisabetta Tomaino, Claudia Marconi, Alessandra Del Giudice, Luciano Galantini, Stefano Poponi, Alessandro Ruggieri, Raffaele Saladino
Summary: In this study, lignin nanoparticles were used as sustainable carriers and photostabilizers for common UV chemical filters. The stability of the compounds was significantly improved by encapsulation, and further enhanced by coencapsulation with hydroxytyrosol.
Article
Chemistry, Multidisciplinary
Liangchen Zhang, Yaxun Fan, Luciano Galantini, Karin Schillen, Alessandra Del Giudice, Guanqun Du, Yilin Wang
Summary: A class of noncovalent antimicrobials composed of bile acid oligomers and polyamines has been developed, showing strong antibacterial activity against methicillinand vancomycin-resistant Staphylococcus aureus without significant cytotoxicity and skin irritation.
Article
Chemistry, Analytical
Cristina Tortolini, Valeria Gigli, Antonio Angeloni, Luciano Galantini, Federico Tasca, Riccarda Antiochia
Summary: In this work, a simple electrochemical immunosensor was developed for the detection of D-dimer protein in human plasma samples. The immunosensor was constructed by drop-casting chitosan nanoparticles (CSNPs) as a biocompatible support, Protein A (PrA) to facilitate antibody orientation, and D-dimer antibody onto a carboxyl functionalized multi-walled carbon nanotubes screen printed electrode (MWCNTs-SPE). The immunosensor showed promising performance in antibody immobilization and specific D-dimer detection, with a linear range from 2 to 500 μg L-1, LOD of 0.6 μg L-1, and sensitivity of 1.3 μA L μg(-1) cm(-2). The stability and fast response time (5 s) were also reported. Moreover, the immunosensor demonstrated satisfactory results in detecting D-dimer in human plasma samples.
Article
Biochemistry & Molecular Biology
Alessandra Del Giudice, Libero Gurrieri, Luciano Galantini, Silvia Fanti, Paolo Trost, Francesca Sparla, Simona Fermani
Summary: CP12 is a redox-dependent conditionally disordered protein found in oxygenic photosynthetic organisms. It acts as a light-dependent redox switch in regulating the metabolic phase of photosynthesis. A small angle X-ray scattering analysis confirmed the disordered nature of this protein and showed a decrease in size and conformational disorder upon oxidation. The presence of disulfide bonds in the oxidized form does not confer rigidity to the protein structure, highlighting the importance of recruiting partner proteins for its final folding.
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2023)
Article
Agriculture, Multidisciplinary
Julia Jianwei Tan, Natalie Gjerde, Alessandra Del Giudice, Kenneth D. Knudsen, Luciano Galantini, Guanqun Du, Karin Schillen, Sverre Arne Sande, Bo Nystrom
Summary: This study investigates the interactions between cationic hydroxyethyl cellulose (catHEC) and sodium deoxycholate (NaDC) or sodium cholate (NaC). It is found that there are strong interactions between catHEC and NaDC, while the interactions with NaC are weak. This difference may be due to the ability of NaDC to form more connections and entanglements.
JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY
(2023)
Review
Biochemistry & Molecular Biology
Iolanda Francolini, Luciano Galantini, Fernando Rea, Cristiano Di Cosimo, Pierpaolo Di Cosimo
Summary: Polymeric wet-strength agents are important additives used in the paper industry to improve paper products' mechanical properties when exposed to water. They enhance durability, strength, and dimensional stability. This review provides an overview of wet-strength agents, their mechanisms, challenges, and recent advances in developing sustainable and environmentally friendly agents. As demand for sustainable and durable paper products grows, the use of wet-strength agents is expected to increase.
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2023)
Article
Pharmacology & Pharmacy
Elena Allegritti, Sara Battista, Maria Anna Maggi, Claudia Marconi, Luciano Galantini, Luisa Giansanti
Summary: This study focuses on the preparation and characterization of mixed liposomes for delivering levodopa and two natural substances to treat Parkinson's disease. The results show that the composition of the liposomes plays a significant role in the delivery of levodopa.
INTERNATIONAL JOURNAL OF PHARMACEUTICS
(2023)
Article
Chemistry, Multidisciplinary
Natalie Solfrid Gjerde, Alessandra Del Giudice, Kaizheng Zhu, Kenneth D. Knudsen, Luciano Galantini, Karin Schillen, Bo Nystrom
Summary: In this study, a diblock copolymer called methoxy-poly(ethyleneglycol)-block-poly(epsilon-caprolactone) (MPEG-b-PCL) was synthesized with a unique block composition that allows it to exhibit both an upper critical solution temperature (UCST) and a lower critical solution temperature (LCST) in aqueous solutions. The UCST value was found to be 32°C upon heating and 23°C upon cooling, while the LCST remained unaffected. Various characterization techniques revealed that the solution consisted of spherical core-shell particles and rodlike objects at intermediate temperatures, cylindrical core-shell crystals at low temperatures, and large aggregation complexes at temperatures above 52°C. This work provides valuable insights into the complex interplay between UCST and LCST and the resulting structures formed in aqueous solutions of MPEG-b-PCL diblock copolymers.
Article
Chemistry, Physical
Natalie Solfrid Gjerde, Alessandro Nicola Nardi, Cheng Giuseppe Chen, Paolo Di Gianvincenzo, Marco D'Abramo, Anita Scipioni, Luciano Galantini, Sergio E. Moya, Mauro Giustini
Summary: Anthracycline doxorubicin hydrochloride (DX), a positively charged fluorescent drug, can self-associate into non-fluorescent antiparallel dimers in water. When complexed with polyanion polystyrene sulfonate (PSS), the fluorescence of DX is quenched, but can be recovered with increased ionic strength. Molecular dynamics studies suggest a preferential orientation of DX into parallel dimers when interacting with PSS.
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
(2022)
Article
Chemistry, Physical
Sergey Yu. Ketkov, Sheng-Yuan Tzeng, Elena A. Rychagova, Anton N. Lukoyanov, Wen-Bih Tzeng
Summary: Metallocenes, including methylcobaltocene, play important roles in various fields of chemistry. The ionization energy and vibrational structure of (Cp ')(Cp)Co can be influenced by introducing methyl substituents. The mass-analyzed threshold ionization spectrum and DFT calculations provide accurate information about the properties and transformations of (Cp ')(Cp)Co.
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
(2024)
Review
Chemistry, Physical
Qifeng Mu, Jian Hu
Summary: Polymer mechanochemistry has experienced a renaissance due to the rapid development of mechanophores and principles governing mechanochemical transduction or material strengthening. It has not only provided fundamental guidelines for converting mechanical energy into chemical output, but also found applications in engineering and smart devices.
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
(2024)
Article
Chemistry, Physical
Da Hye Yang, Francesco Ricci, Fredrik L. Nordstrom, Na Li
Summary: Through systematic evaluation of the oiling-out behavior of procaine, we identified both stable and metastable liquid-liquid phase separation, and established phase diagrams to assist in rational selection of crystallization strategies.
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
(2024)
Article
Chemistry, Physical
Vikki Anand Varma, Simmie Jaglan, Mohd Yasir Khan, Sujin B. Babu
Summary: Designing engineering structures like nanocages, shells, and containers through self-assembly of colloids is a challenging problem. This work proposes a simple model for the subunit, which leads to the formation of monodispersed spherical cages or containers. The model with only one control parameter can be used to design cages with the desired radius.
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
(2024)
Article
Chemistry, Physical
Hainan Jiang, Yaolong He, Xiaolin Li, Zhiyao Jin, Huijie Yu, Dawei Li
Summary: The cycling lifespan and coulombic efficiency of lithium-ion batteries are crucial for high C-rate applications. The Li-ion concentration plays a crucial role in determining the mechanical integrity and structural stability of electrodes. This study focuses on graphite as the working electrode and establishes an experimental system to investigate the mechanical properties of composite graphite electrode at different C-rates. Considering the effect of Li-ion concentration in stress analysis is found to be significant.
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
(2024)
Article
Chemistry, Physical
Zhiye Wang, Yunchuan Li, Mingjun Sun
Summary: This study investigates the influence of intramolecular pi-pi interactions on the electronic transport capabilities of molecules. By designing and analyzing three pi-conjugated molecules, the researchers observe that different pi-conjugated structures have varying effects on electron transport. The findings provide a theoretical foundation for designing single-molecule electronic devices with multiple electron channels based on intramolecular pi-pi interactions.
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
(2024)
Article
Chemistry, Physical
Yuandong Xu, Haoyang Feng, Chaoyang Dong, Yuqing Yang, Meng Zhou, Yajun Wei, Hui Guo, Yaqing Wei, Jishan Su, Yingying Ben, Xia Zhang
Summary: Hollow MoS2 cubes and spheres were successfully synthesized using a one-step hydrothermal method with the hard template method. The hollow MoS2 cubes exhibited higher specific capacitance and energy density compared to the hollow MoS2 spheres. The symmetrical supercapacitors assembled with these hollow structures showed good performance and high capacity retention after multiple cycles. These findings suggest that controlling the pore structure and surface characteristics of MoS2 is crucial for enhancing its electrochemical properties.
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
(2024)
Article
Chemistry, Physical
Ainhoa Oliden-Sanchez, Rebeca Sola-Llano, Joaquin Perez-Pariente, Luis Gomez-Hortiguela, Virginia Martinez-Martinez
Summary: The combination of photoactive molecules and inorganic structures is important for the development of advanced materials in optics. In this study, bulky dyes were successfully encapsulated in a zeolitic framework, resulting in emission throughout the visible spectrum.
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
(2024)
Article
Chemistry, Physical
Miaomiao Zhang, Cunyuan Pei, Qiqi Xiang, Lintao Liu, Zhongxu Dai, Huijuan Ma, Shibing Ni
Summary: The design of a solid electrolyte interphase (SEI) plays a crucial role in improving the electrochemical performance of anode materials. In this study, lithium difluoro(oxalate)borate (LiDFOB) is used as an electrolyte additive to form a protective SEI film on Li3VO4 (LVO) anodes. The addition of LiDFOB results in a dense, uniform, stable, and LiF-richer SEI, which enhances the Li-ion storage kinetics. The generated SEI also prevents further decomposition of the electrolyte and maintains the morphology of LVO anodes during charge/discharge processes. This work demonstrates the effectiveness of LiDFOB as a multi-functional additive for LiPF6 electrolytes and provides insights into SEI construction for high-performance LVO anodes.
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
(2024)
Article
Chemistry, Physical
B. V. Andryushechkin, T. V. Pavlova, V. M. Shevlyuga
Summary: The atomic structure of the Ag(111)-p(4 x 4)-O phase was reexamined and two phases with the same periodicity were discovered. It was demonstrated that the accepted Ag6 model is incompatible with high-resolution oxygen-sensitive STM images.
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
(2024)
Article
Chemistry, Physical
S. L. Romo-Avila, D. Marquez-Ruiz, R. A. Guirado-Lopez
Summary: In this study, we used density functional theory (DFT) calculations to investigate the interaction between model graphene oxide (GO) nanostructures and chlorine monoxide ClO. We aimed to understand the role of this highly oxidizing species in breaking C-C bonds and forming significant holes on GO sheets. Our results showed that C-C bonds in a single graphene oxide sheet can be broken through a simple mechanism involving the dissociation of two chemically attached ClO molecules. The formation of carbonyl groups and holes on the GO surface was also observed. This study provides important insights into the degradation of carbon nanotubes and the stability of GO during the myeloperoxidase (MPO) catalytic cycle.
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
(2024)
Article
Chemistry, Physical
Alberto Garcia-Fernandez, Birgit Kammlander, Stefania Riva, Hakan Rensmo, Ute B. Cappel
Summary: In this study, the X-ray stability of five different lead halide perovskite compositions (MAPbI3, MAPbCl3, MAPbBr3, FAPbBr3, CsPbBr3) was investigated using photoelectron spectroscopy. Different degradation mechanisms and resistance to X-ray were observed depending on the crystal composition. Overall, perovskite compositions based on the MA+ cation were found to be less stable than those based on FA+ or Cs+. Metallic lead formation was most easily observed in the chloride perovskite, followed by bromide, and very little in MAPbI3. Multiple degradation processes were identified for the bromide compositions, including ion migration, formation of volatile and solid products, as well as metallic lead. CsBr was formed as a solid degradation product on the surface of CsPbBr3.
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
(2024)
Article
Chemistry, Physical
Timofei Rostilov, Vadim Ziborov, Alexander Dolgoborodov, Mikhail Kuskov
Summary: The shock-loading behavior of nanomaterials is investigated in this study. It is found that shock compaction waves exhibit a distinct two-step structure, with the formation of faster precursor waves that travel ahead of the main compaction waves. The complexity of the shock Hugoniot curve of the tested nanomaterial is described, and the effect of initial porosity on the compressed states is demonstrated.
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
(2024)
Article
Chemistry, Physical
Sergey S. Nikitin, Alexander D. Koryakov, Elizaveta A. Antipinskaya, Alexey A. Markov, Mikhail V. Patrakeev
Summary: The stability of La1/3Sr2/3Fe1-xMnxO3-delta, a perovskite-type oxide, under reducing conditions is dependent on the manganese content. Increasing the manganese content leads to a decrease in stability. The behavior of iron and manganese in the oxide shows distinct differences, which can be attributed to the difference in the enthalpy of oxidation reactions. Additionally, the change in the La/Sr ratio affects the concentration of iron and manganese ions.
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
(2024)
Article
Chemistry, Physical
Mosayeb Naseri, Shirin Amirian, Mehrdad Faraji, Mohammad Abdur Rashid, Maicon Pierre Lourenco, Venkataraman Thangadurai, D. R. Salahub
Summary: Inspired by the successful transfer of freestanding ultrathin films of SrTiO3 and BiFeO3, this study assessed the structural stability and investigated the electronic, optical, and thermoelectric properties of a group of two-dimensional perovskite-type materials called perovskenes. The findings revealed that these materials are wide bandgap semiconductors with potential application in UV shielding. Moreover, they exhibit better electrical and thermal conductivity at high temperatures, enabling efficient power generation in thermoelectric devices.
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
(2024)