Article
Chemistry, Physical
Xue Wang, Liying Zhang, Enjie Ding, Xinhui Cao, Chuyang Luo, Liqian Huang
Summary: Combining metal-organic frameworks (MOFs) with one-dimensional (1D) carbon nanofibers is an effective approach to improve microwave absorption performance. In this study, C/zinc oxide (ZnO) nanofiber composites were synthesized, showing outstanding microwave absorption performance due to the unique porous structure and heterointerfaces formed between C and ZnO. The minimum reflection loss (RLmin) of -58 dB at 7.5 GHz and an effective absorption bandwidth (EAB) of 6.5 GHz were achieved, demonstrating the potential of this innovative methodology for developing highly efficient microwave absorbing materials.
Article
Nanoscience & Nanotechnology
Vera I. Isaeva, Konstantinos Papathanasiou, Vladimir V. Chernyshev, Lev Glukhov, Grigory Deyko, Kamal Kumar Bisht, Olga P. Tkachenko, Serguei Savilov, Nikolai A. Davshan, Leonid M. Kustov
Summary: This study developed novel heterogeneous catalysts based on zeolite-like metal-organic frameworks for the hydroamination of phenylacetylene. The Au@ZIF-67 and Au@BIF-66 hybrids showed high activity and selectivity for the formation of imine in the liquid phase reaction. The choice of metal-organic carrier, Au source, and reducing agent significantly impacted the catalytic performance of the synthesized nanomaterials.
ACS APPLIED MATERIALS & INTERFACES
(2021)
Article
Chemistry, Applied
Amani Jaafar, Fatima Youness, Rana A. Bilbeisi
Summary: In this study, we investigated the potential of a thiosemicarbazone Schiff base in the Zeolitic Imidazolate Framework (TSC-ZIF-1) as an efficient adsorbent for removing harmful metal ions from aqueous solutions. Our investigation assessed the adsorption capacity and efficiency of TSC-ZIF 1 towards different metal ions in homo-ionic, tertiary, and multi-metal ion systems.
APPLIED ORGANOMETALLIC CHEMISTRY
(2023)
Article
Materials Science, Multidisciplinary
Mahdiar Taheri, Takuya Tsuzuki
Summary: This study reveals that light irradiation, including UVA, UVB, and near-UV visible light, can accelerate the hydrolysis-based decomposition of ZIF-8 in water, which is related to ligand-based photo-absorption in ZIF-8. Future research directions aim to elucidate the cause of photo-accelerated decomposition.
ACS MATERIALS LETTERS
(2021)
Article
Chemistry, Multidisciplinary
Jorge Becerra, Duc-Trung Nguyen, Vishnu Nair Gopalakrishnan, Trong-On Do
Summary: This article reports a new method for synthesizing chemically bonded gold nanoparticles/ZIF-67 nanocomposites, in which a capping agent is used to facilitate the close contact or chemical bonding at the interface, achieving excellent photocatalytic CO2 reduction performance.
Article
Multidisciplinary Sciences
Vahid Nozari, Courtney Calahoo, Joshua M. Tuffnell, David A. Keen, Thomas D. Bennett, Lothar Wondraczek
Summary: The method of incorporating ionic liquids to melt MOFs has been introduced to extend the range of hybrid glasses.
NATURE COMMUNICATIONS
(2021)
Article
Materials Science, Composites
Guohong Pu, Aoshuang Yang, Yongsheng Li, Zhuoni Jiang, Xiaoan Li, Zhengguo Chen, Ren He, Kai Zhang, Wenbin Yang
Summary: This paper describes a method to enhance the interfacial adhesion and properties of CF reinforced composites by in situ growing ZIF-67 nanocrystals on the CF surface. The results show significant improvement in the electrochemical and mechanical performance of CF/WPU composites.
POLYMER COMPOSITES
(2023)
Article
Chemistry, Physical
Yu Lv, Mingshi Deng, Xuefeng Wang, Xinghua Gao, Lingyan Feng, Wei Chen, Chung-Chiun Liu, Xinxin Li, Yuan Zhang
Summary: To address the challenge of highly sensitive and accurate detection of biomarkers in complex environments, a rational engineering strategy for designing electrochemical immunosensing platform is proposed. A microsensor chip is developed for parallel detection of human interleukins using multiplexed electrodes and microfluidic channels. The chip utilizes conductive silver nanowires wrapped with zeolitic imidazolate framework thin film for efficient sensing interface. The immunosensor chip achieves a wide detection range and possesses the ability to resist non-specific proteins adsorption.
Article
Chemistry, Physical
Yu Lv, Mingshi Deng, Xuefeng Wang, Xinghua Gao, Lingyan Feng, Wei Chen, Chung-Chiun Liu, Xinxin Li, Yuan Zhang
Summary: A rational engineering strategy for designing electrochemical immunosensing platform is proposed to address the challenge of highly sensitive and accurate detection of biomarkers in complex environments. A microsensor chip with multiplexed electrodes and microfluidic channels is developed for parallel detection of human interleukins. The immunosensor chip achieves high sensitivity, good specificity, and resistance to non-specific protein adsorption. Clinical application validates the high diagnostic accuracy of this platform in inflammatory diseases.
Article
Biochemistry & Molecular Biology
Xiao Mi, Juan Lu, Mingran Dong, Yang Lou, Xia Zhan, Xi Chen
Summary: Dihydromyricetin (DHM) holds potential as an antitumor agent, but its low bioavailability limits its clinical application. In this study, DHM@ZIF-8 nanoparticles were developed using ZIF-8 as a carrier to enhance its antitumor activity. The nanoparticles exhibited a regular morphology with a suitable particle size and a high drug release rate in a simulated tumor micro acid environment. Compared to the prodrug, DHM@ZIF-8 showed increased killing effect on HepG2 cells, along with enhanced removal of ROS, promotion of apoptosis, and significant modulation of apoptosis-related proteins within tumor cells.
Article
Materials Science, Multidisciplinary
Mohammed A. Al-Baadani, Lihua Xu, Kendrick Hii Ru Yie, Anba Sun, Xue Gao, Kexin Cai, Bilal A. Al-Shaaobi, Abdullrahman M. Al-Bishari, Lei Cai, Xinkun Shen, Jinsong Liu, Pingping Ma
Summary: A multifunctional bone regeneration membrane embedded with alendronate-loaded nanoparticles was fabricated and showed excellent mechanical strength, anti-osteoporosis properties, and osteoinductive properties. The membrane also exhibited significant bactericidal properties against common bacteria.
MATERIALS & DESIGN
(2022)
Article
Chemistry, Physical
Hoyeon Yoo, Naechul Shin
Summary: We have successfully fabricated continuous ZIF-8 thin films using a secondary solvothermal growth method and a consecutive ZnO seed layer overlaying approach. The overlaying of seed layers promotes core-shell-like growth on the primary ZIF-8 crystals and enhances the conformation and interconnection between isolated particles. These findings provide an effective method for synthesizing continuous, well-intergrown MOF films with high surface coverage of various compositions and porosities.
APPLIED SURFACE SCIENCE
(2023)
Article
Biochemistry & Molecular Biology
Tohid Taghizadeh, Atefeh Ameri, Amin Talebian-Kiakalaieh, Somayeh Mojtabavi, Alieh Ameri, Hamid Forootanfar, Sara Tarighi, Mohammad Ali Faramarzi
Summary: ZIF-90 was synthesized and used as a support for immobilization of porcine pancreatic lipase (PPL), leading to improved pH and thermal stability while retaining high activity. In esterification experiments for producing fruity banana flavor, PPL@ZIF-90 demonstrated high catalytic efficiency and stability.
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
(2021)
Article
Chemistry, Physical
Ryohei Yagi, Takahiro Ueda
Summary: This study examined the time dependence of benzene adsorption uptake for ZIF-8, Cl-ZIF-8, and Br-ZIF-8 and analyzed the diffusion coefficient and saturated adsorption amount of benzene using a diffusion model. The saturated adsorption amount of benzene decreased in the order of ZIF-8, Cl-ZIF-8, and Br-ZIF-8. The activation energy and pre-exponential factor for benzene diffusion increased in the same order. The findings suggest that the 2-methylimidazolate moiety forms an effective attraction interaction with benzene molecules.
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
(2023)
Review
Engineering, Chemical
Simin Feng, Xiaoli Zhang, Dunyun Shi, Zheng Wang
Summary: ZIF-8, composed of Zn ions and imidazolate ligands, is a metal-organic framework with high porous property, loading capacity, and thermal/chemical stability. Recent research has focused on synthesis methods and potential applications in drug delivery, while also summarizing the potential risks of using ZIF-8 for this purpose.
FRONTIERS OF CHEMICAL SCIENCE AND ENGINEERING
(2021)
Article
Chemistry, Physical
Markus Hansch, Benjamin Haemisch, Ralf Schweins, Sylvain Prevost, Klaus Huber
JOURNAL OF CHEMICAL PHYSICS
(2018)
Article
Chemistry, Multidisciplinary
Benjamin Haemisch, Anne Buengeler, Charlotte Kielar, Adrian Keller, Oliver Strube, Klaus Huber
Article
Chemistry, Physical
David Gomez, Klaus Huber, Stefan Klumpp
JOURNAL OF PHYSICAL CHEMISTRY LETTERS
(2019)
Article
Polymer Science
Nico Schmidt, Susanne Keuker-Baumann, Joerg Meyer, Klaus Huber
JOURNAL OF POLYMER SCIENCE PART B-POLYMER PHYSICS
(2019)
Article
Polymer Science
Nico Carl, Sylvain Prevost, Ralf Schweins, Judith E. Houston, Isabelle Morfin, Klaus Huber
Article
Chemistry, Physical
Nico Carl, Sylvain Prevost, Ralf Schweins, Klaus Huber
COLLOID AND POLYMER SCIENCE
(2020)
Article
Chemistry, Multidisciplinary
Nico Carl, Wenke Mueller, Ralf Schweins, Klaus Huber
Article
Chemistry, Multidisciplinary
Benjamin Haemisch, Roland Pollak, Simon Ebbinghaus, Klaus Huber
CHEMISTRY-A EUROPEAN JOURNAL
(2020)
Article
Chemistry, Analytical
Leon Koch, Roland Pollak, Simon Ebbinghaus, Klaus Huber
Summary: Pseudo isocyanine chloride (PIC) has been identified as a suitable sensor for probing macromolecular crowding in both synthetic crowding solutions and HeLa cells. In this study, four additional cyanine dyestuffs (TDBC, S071, S2275, and PCYN) were examined for their potential as sensors and compared to PIC. The photo-physical properties of the candidates were analyzed using UV-VIS and fluorescence spectroscopy, and their self-assembly in solution was characterized using light scattering. None of the candidates performed as effectively as PIC in probing crowding effects in cells, although S0271 and S2275 showed promise.
Article
Chemistry, Physical
Satyendra Rajput, Roland Pollak, Klaus Huber, Simon Ebbinghaus, Divya Nayar
Summary: The role of intracellular crowded environment in regulating protein aggregation is a complex and elusive mechanism. By studying a synthetic model for self-assembling proteins, it was found that ethylene glycol impedes the self-assembly of dye molecules, suggesting that a crowded environment can hinder the self-assembly of proteins. These findings have implications in understanding the impact of crowded environment on the free energy landscapes of proteins.
Article
Chemistry, Physical
Wenke Mueller, Ralf Schweins, Bernd Noecker, Joachim Kohlbrecher, Glen J. Smales, Klaus Huber
Summary: The co-assembly of three one-fold negatively charged 3-chloro-4-hydroxy-phenylazo dyes with the cationic surfactant DTAB was investigated. Different phase separations and crystalline dye-DTAB complexes were observed for each dye, with varying stoichiometries in homogeneous solution. The observed stoichiometries are inversely correlated to the impact dye addition has on the morphology of DTAB micelles.
Article
Chemistry, Physical
Wenke Mueller, Ralf Schweins, Bernd Noecker, Hans Egold, Klaus Huber
Summary: The complexity of intermolecular interactions and the difficulty to predict assembly behaviour solely based on chemical constitution were demonstrated by studying the self-assembly of three one-fold negatively charged 3-chloro-4-hydroxy-phenylazo dyes (Yellow, Blue and Red). Differences in dye self-assembly were observed, with Yellow not self-assembling, Red forming higher-order aggregates, and Blue forming well-defined H-aggregate dimers with a dimerization constant of Kd = (728 +/- 8) L mol(-1). These differences were suggested to arise from variations in the propensity to form pi-pi interactions due to electrostatic repulsion, sterical constraints and hydrogen-bonding interactions.
Article
Chemistry, Multidisciplinary
Benjamin Hamisch, Roland Pollak, Simon Ebbinghaus, Klaus Huber
Summary: This study analyzed the impact of macromolecular cosolutes on the self-assembly of Pseudo isocyanine chloride (PIC), with Triethylene glycol (TEG) and Polyethylene glycol (PEG) found to suppress self-assembly, while Ficoll400 promoted it. The results support PIC as a cost-effective substitute for proteins in test tube studies and as a sensor for crowding effects on self-assembly processes in cells.
Article
Chemistry, Physical
Benjamin Haemisch, Klaus Huber
Summary: Pseudo isocyanine chloride (PIC) has a tendency to self-assemble into small H-oligomers and large J-aggregates with a concentration dependent temperature threshold. Analysis through UV-vis spectroscopy allows for a comprehensive description of the sample composition and equilibrium thermodynamics. Experimental results show that individual aggregate initiation and growth in J-aggregates is faster than the overall aggregation process.
Article
Chemistry, Physical
Nico Carl, Sylvain Prevost, Ralf Schweins, Klaus Huber
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)