Article
Chemistry, Physical
Juanjuan Wang, Haipeng Ji, Yanqian Guo, Bin Wang, Xue Han, Lele Li, Fuqi Wu, Jingqing Li, Conghua Lu
Summary: This study introduces a light-assisted strategy to prevent surface wrinkling on azobenzene-containing polyblend films. It was found that visible light irradiation can effectively suppress mechanical strain-induced surface wrinkling of azo-based polyblend films attached on pre-strained compliant substrates. Empirical scaling laws relating critical wrinkling conditions to external and internal factors were derived through systematic investigation of light irradiation conditions and polyblend composition.
Article
Mechanics
Xiao Liu, Ying Liu, Xi-Qiao Feng
Summary: This paper investigates radial local wrinkling triggered by a homogeneous pre-stretch in a circular area of the film in a viscoelastic bilayer system. The critical condition for the wrinkling of the viscoelastic bilayer system is established, and the influence of the film/substrate viscosity ratio and normalized moduli on system instability, as well as the temporal evolution of the wrinkling mode, is discussed. A phase diagram for the regulation of the circumferential wrinkling wavenumber is obtained.
INTERNATIONAL JOURNAL OF SOLIDS AND STRUCTURES
(2022)
Article
Polymer Science
Yi-Fang Chen, Jia-Wen Hong, Jung-Hong Chang, Belda Amelia Junisu, Ya-Sen Sun
Summary: The study focused on the influence of osmotic pressure on nanostructures in thin films, particularly the impact of UV-light exposure and acetic acid rinsing on lamellae orientation and surface wrinkling. It was found that the content of added PS chains affected the formation of lamellae and perforated layers in the films. The combination of UV-light exposure and acetic acid rinsing could produce different surface morphologies and mechanical properties in the films. The use of high-molecular-weight P(S-b-MMA) BCPs could help suppress surface wrinkling in the films.
Article
Chemistry, Physical
Dileep Kumar, Mihalj Posa
Summary: The anions of bile acids form linear hydrophobic congeneric groups (LCG) in the lnk - lnCMC plane and in the plane of enthalpy and entropy of bile salts micellization. The formation of LCG is not solely determined by hydrophobic effect and interaction, but also related to the energy and entropy changes of the hydrogen bonds. This finding provides insight into the thermodynamic behavior of bile acids.
JOURNAL OF MOLECULAR LIQUIDS
(2023)
Article
Nanoscience & Nanotechnology
Jooyeon Shin, Jong-Gu Lee, Gunhee Lee, Peter Pikhitsa, Sang Moon Kim, Mansoo Choi, Yong Whan Choi
Summary: This study presents a smart switching surface that can generate and remove wrinkles reversibly to adapt to both wet and dry environments, enabling robots to complete tasks in different conditions. The wrinkles on denser and smaller hexagonal patterns generate six times more friction than non-switching flat surfaces in wet environments, and a similar amount of friction to the flat surfaces in dry environments.
ACS APPLIED MATERIALS & INTERFACES
(2022)
Article
Food Science & Technology
Daniele Penteado Rosa, Rodrigo Rodrigues Evangelista, Andre Luiz Borges Machado, Marcio Augusto Ribeiro Sanches, Javier Telis-Romero
Summary: This research evaluated sorption isotherms and thermodynamic properties of papaya seeds at different temperatures, showing that the equilibrium moisture content of papaya seeds decreased with increasing temperature, and the adsorption process was enthalpy-driven.
LWT-FOOD SCIENCE AND TECHNOLOGY
(2021)
Article
Chemistry, Multidisciplinary
Maziar S. Ardejani, Louis Noodleman, Evan T. Powers, Jeffery W. Kelly
Summary: The study demonstrates that stereoelectronic effects play a role in stabilizing protein-N-glycan interactions, with enthalpy-entropy compensation depending on the electronics of interacting side chains. Models using quantum mechanical calculations and machine learning can explain up to 79% and 97% of the experimental interaction energy variability.
Article
Chemistry, Physical
Huanxin Li, Yingnan Xie, Yan Xue, Peizhi Zhu, Hongkun Zhao
Summary: This research focused on the solubility and solvation behavior of dapsone in different solvent systems. The highest solubility of dapsone was found in neat ethanol/ethyl acetate/methanol/acetone, while the lowest solubility was in neat ethanol or water. Various common relationships were used to analyze the solubility data obtained from the experiments.
JOURNAL OF MOLECULAR LIQUIDS
(2021)
Article
Materials Science, Multidisciplinary
Jan Zavodnik, Andrej Kosmrlj, Miha Brojan
Summary: This paper investigates the influence of the interplay between viscoelasticity and multistability on the evolution of deformations in viscoelastic structures undergoing large deformations. Experimental and modeling results show that this interplay greatly increases the evolution time of the system and that the growth rate and viscoelastic stress-relaxation rate influence the choice of the final equilibrium deformation state of the structure.
JOURNAL OF THE MECHANICS AND PHYSICS OF SOLIDS
(2023)
Article
Chemistry, Physical
Juan Wang, Shuguang Li, Kang Li, Yakun Wang, Wentian Li
Summary: This study used quantum-chemical parameters to explain the electrostatic features of basicity and acidity in the nicorandil molecule. It was found that nicorandil exhibited better solubility in organic solvents compared to water, which can be attributed to the higher basicity of organic solvents, promoting interactions with the acidic groups of nicorandil.
JOURNAL OF MOLECULAR LIQUIDS
(2022)
Article
Chemistry, Physical
Cunliang Zhang, Yanmei Liu, Fuqiang Song, Jian Wang
Summary: Using techniques such as Hirshfeld surface, interaction region indicator, and quantitative molecular surface analysis, the microscopic electrostatic features of the tirofiban molecule in terms of basicity and acidity were clearly demonstrated. The study also utilized solubility data and preferential solvation analysis to determine the preferred solvent for tirofiban solvation. The results showed that solubility and solvent-solute interactions were influenced by basicity and solvent composition.
JOURNAL OF MOLECULAR LIQUIDS
(2022)
Article
Chemistry, Physical
Zhenbei Wang, Yun Qian, Ali Farajtabar
Summary: This study employed molecular electrostatic potential surface and Hirshfeld surface analysis to investigate the charge distribution and inter/intra-molecular interactions of milrinone. The results showed that milrinone has a good solubility in ethanol/isopropanol/DMF + water solution, and exhibits preferential solvation by ethanol/isopropanol/DMF. The transfer and thermodynamic dissolution properties of milrinone were derived from the changes in entropy, enthalpy, and Gibbs free energy.
JOURNAL OF MOLECULAR LIQUIDS
(2022)
Article
Chemistry, Multidisciplinary
Manish Shetty, Huamin Wang, Feng Chen, Nicholas Jaegers, Yue Liu, Donald M. Camaioni, Oliver Y. Gutierrez, Johannes A. Lercher
Summary: The dehydration rates of alkanols catalyzed by hydronium ions are enhanced by the steric confinements of zeolite pores and intraporous intermolecular interactions. Different zeolite structures lead to varying activation enthalpies for alkanol dehydration, affecting the overall reaction rate.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2021)
Article
Materials Science, Multidisciplinary
Martin Ehrhardt, Shengying Lai, Pierre Lorenz, Joachim Zajadacz, Bing Han, Klaus Zimmer
Summary: A new self-organized pattern formation process was discovered when laser irradiating polymer films in water, resulting in a randomly oriented pattern with a period of 475 nm. The pattern morphology, orientation, period, and amplitude are inconsistent with other known patterns induced by laser. The amplitude of these submicron structures is strengthened with an increase in pulse number and laser fluence. The size, amplitude, and morphology of the pattern have potential applications in fields such as wetting, friction, optics, and bioactivity.
APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING
(2023)
Article
Engineering, Chemical
Enrique Flores-Andrade, Zaira Allende-Baltazar, Paola E. Sandoval-Gonzalez, Maribel Jimenez-Fernandez, Cesar Beristain, Luz A. Pascual-Pineda
Summary: The oil-in-water nanoemulsions of paprika oleoresin stabilized with soy lecithin, whey protein concentrate and gum Arabic showed good physical and chemical stability, with particle size influenced by interfacial tension. The stability of carotenoids in nanoemulsions was associated with changes in interfacial tension, PDI and entropy.
JOURNAL OF FOOD ENGINEERING
(2021)
Article
Chemistry, Inorganic & Nuclear
P. Sankudevan, R. Sakthivel, A. Prakasam, Abdullah M. Al-Enizi, Mohd Ubaidullah, Bidhan Pandit, Chandra Sekhar Dash, S. Revathi, A. Roniboss, M. Sundararajan
Summary: In this work, pure CuCr2O4 and Mn-doped CuCr2O4 nanoparticles were successfully prepared using the microwave combustion process. The prepared samples were characterized using various techniques, and the results showed that Mn doping can significantly decrease the particle size and introduce multiple Mn-related optical centers. Additionally, the prepared samples exhibited irregular plate-shaped agglomerates and demonstrated good antibacterial performance.
JOURNAL OF CLUSTER SCIENCE
(2023)
Article
Materials Science, Multidisciplinary
Gulsum Ersu, Carmen Munuera, Federico J. Mompean, Daniel Vaquero, Jorge Quereda, Joao Elias F. S. Rodrigues, Jose A. Alonso, Eduardo Flores, Jose R. Ares, Isabel J. Ferrer, Abdullah M. Al-Enizi, Ayman Nafady, Sruthi Kuriakose, Joshua O. Island, Andres Castellanos-Gomez
Summary: We have developed a method to fabricate thermoelectric devices on office paper substrates using handcrafting techniques. The devices consist of thin films of WS2, Te, and BP (P-type semiconductors) and TiS3 and TiS2 (N-type semiconductors) deposited by rubbing these materials' powders onto the paper. The semiconducting films exhibit high Seebeck coefficients, reaching (+1.32 +/- 0.27) mV K-1 for WS2 and (-0.82 +/- 0.15) mV K-1 for TiS3. Peltier elements were also constructed by connecting the P- and N-type films with graphite electrodes, achieving a thermopower value of up to 6.11 mV K-1 when the Peltier element had three junctions. This work demonstrates the potential application of semiconducting van der Waals materials in thermoelectric power generation and low-cost disposable electronic devices.
ENERGY & ENVIRONMENTAL MATERIALS
(2023)
Article
Engineering, Multidisciplinary
Abdullah M. Al-Enizi, Alamgir Karim, Ayman Yousef
Summary: This research investigates the use of CdS nanoparticles-decorated ZnO nanofibers as a novel photocatalyst for water splitting. The nanofibers were prepared using electrospinning, and the CdS nanoparticles were synthesized through a colloidal solution. The resulting CdS NPs-decorated ZnO NFs exhibited favorable photocatalytic performance for hydrogen production compared to native ZnO NFs and CdS NPs. The excellent photostability of the NFs was attributed to their nanofibrous morphology, which facilitated photocarrier transport and increased the number of active sites.
ALEXANDRIA ENGINEERING JOURNAL
(2023)
Article
Chemistry, Multidisciplinary
Yin Zhang, Songbo Chen, Abdullah M. Al-Enizi, Ayman Nafady, Zhiyong Tang, Shengqian Ma
Summary: In this study, a strategy for integrating molecular chiral frustrated Lewis pair (CFLP) with porous metal-organic framework (MOF) was proposed and the catalyst CFLP@MOF was successfully constructed, which enables heterogeneous asymmetric hydrogenation. The developed CFLP@MOF catalyst exhibits high activity/enantio-selectivity and excellent recyclability/regenerability, providing a new avenue for the design and preparation of advanced catalysts for asymmetric catalysis.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2023)
Article
Chemistry, Inorganic & Nuclear
N. Subhashini, S. Revathi, Mohd Ubaidullah, Abdullah M. Al-Enizi, S. Muthulakshmi, D. Thiripurasundari, Shoyebmohamad F. Shaikh, Ayman Nafady, Meera Moydeen Abdulhameed, Nouf B. B. Alanzi, Rayana Ibrahim Alkhalifah, Chandra Sekhar Dash, M. Sundararajan, M. Sukumar
Summary: The combustion-based synthesis of BiFeO3 (BFO) and Gd:BFO perovskite nanoparticles was presented. XRD analysis showed that the undoped BFO sample had a single perovskite phase with a rhombohedral structure, while the Gd-doped samples exhibited a structural phase transformation from rhombohedral to orthorhombic. The presence of Bi3+, Gd3+, Fe2+, and O2+ ions in the perovskite samples was confirmed by XPS, and elemental functional groups were detected by FT-IR spectroscopy. The direct band gap decreased as the Gd concentration increased. The synthesized catalysts, particularly Gd:BFO (x = 0.25), exhibited higher conversion and selectivity efficiencies for glycerol in catalytic oxidation studies.
DALTON TRANSACTIONS
(2023)
Review
Chemistry, Physical
Dhriti Nepal, Saewon Kang, Katarina M. Adstedt, Krishan Kanhaiya, Michael R. Bockstaller, L. Catherine Brinson, Markus J. Buehler, Peter Coveney, Kaushik Dayal, Jaafar A. El-Awady, Luke C. Henderson, David L. Kaplan, Sinan Keten, Nicholas A. Kotov, George C. Schatz, Silvia Vignolini, Fritz Vollrath, Yusu Wang, Boris Yakobson, Vladimir V. Tsukruk, Hendrik Heinz
Summary: This Review discusses recent advancements in bioinspired nanocomposite design, focusing on the role of hierarchical structuring at different length scales in creating multifunctional, lightweight, and robust structural materials. By manipulating the architecture, interphases, and confinement, dynamic and synergistic responses have been achieved. The study highlights the significance of hierarchical structures across multiple length scales for achieving multifunctionality and robustness.
Article
Materials Science, Multidisciplinary
Gulsum Ersu, Yigit Sozen, Estrella Sanchez-Viso, Sruthi Kuriakose, Beatriz H. Juarez, Federico J. Mompean, Mar Garcia-Hernandez, Lea Visscher, Alvaro J. Magdaleno, Ferry Prins, Abdullah M. Al-Enizi, Ayman Nafady, Carmen Munuera, Joshua O. Island, Andres Castellanos-Gomez
Summary: The use of low-cost benchtop plotters combined with refillable writing pens and markers has been studied as an effective method to print nanomaterial-based inks on paper substrates. The approach is robust and precise, allowing for the printing of various solution-processable nanomaterials with narrow pattern features. The study also illustrates the versatility of this printing platform by successfully printing a range of materials with different properties.
ADVANCED ENGINEERING MATERIALS
(2023)
Article
Materials Science, Multidisciplinary
V. S. Veena, H. J. Amith Yadav, S. P. Kubrin, Mohd Ubaidullah, Abdullah M. Al-Enizi, Bidhan Pandit, Harjot Singh Gill, K. Manjunatha, V. Jagadeesha Angadi
Summary: This study investigates the structural, microstructural, and magnetic property modifications in Bismuth(3 + )-substituted ZnFe2O4 composites. Bi@ZnFe2O4 is synthesized using the solution combustion method and sintered at 500 degrees C for two hours. XRD patterns confirm the cubic symmetry and spinel structure of the samples. Structural parameters are calculated using fundamental formulas. The samples exhibit porous character and significantly agglomerated particles, as revealed by SEM and HRTEM images. The magnetic properties of the composite are described by Neel's two sublattice model based on the cation occupancies.
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS
(2023)
Article
Polymer Science
Yuqi Zhao, Rongguan Yin, Hanshu Wu, Zongyu Wang, Yue Zhai, Khidong Kim, Changwoo Do, Krzysztof Matyjaszewski, Michael R. Bockstaller
Summary: Van der Waals-driven self-healing in copolymers with lock-and-key architecture has been achieved by synthesizing lock-and-key copolymers with prescribed sequences. The recovery behavior of copolymers with different sequences was evaluated, and copolymers with alternating and statistical sequences showed a 10-fold increase in recovery rate compared to copolymers with a gradient sequence. The results provide strategies for designing and synthesizing engineering polymers with both structural and thermal stability and the ability to recover from structural damage.
Article
Materials Science, Multidisciplinary
Jin Han, Taolei Qiu, Dan Wu, Yue Zhai, Michael R. Bockstaller, Xiaolin Zhang, Jianchao Zhao
Summary: A new process for upcycling waste-derived DMP into hyper-crosslinked porous polymer networks is presented, which can reduce the negative environmental impact associated with the fabrication and application of PPE. The resulting polymers show promising adsorption capacity for CO2 and H2, suggesting potential applications in carbon capture.
MATERIALS TODAY COMMUNICATIONS
(2023)
Article
Materials Science, Multidisciplinary
Jin Han, Quan Chen, Yiping Feng, Yupeng Shen, Dan Wu, Mingqiang Zhong, Qiaoye Zhang, Zhengping Zhao, Yue Zhai, Michael R. Bockstaller
Summary: In this study, betaine ester-functionalized epoxy resins with tunable degradation and antibacterial activity in seawater-like environments were synthesized. Chloroacetate-decorated epoxy resins were first synthesized and reacted with tertiary amine-based curing agents. The resulting betaine ester-decorated epoxy thermosets showed a yield strength exceeding 80 MPa and tunable degradation capability. Integration of cetyl chloroacetate further enhanced the betaine ester content and bactericidal performance.
ACS APPLIED POLYMER MATERIALS
(2023)
Article
Chemistry, Physical
Yuqi Zhao, Hanshu Wu, Rongguan Yin, Chenxi Yu, Krzysztof Matyjaszewski, Michael R. Bockstaller
Summary: The effect of sequence structure on the self-healing and shape-memory properties of copolymer-tethered brush particle films was investigated. It was found that statistical copolymer sequence provided the most rapid restoration of mechanical properties and an increase of the high T(g) (MMA) component improved the material's modulus while retaining self-healing ability. The reduction of flow in brush systems was attributed to slow cooperative relaxation due to the complex microstructure.
CHEMISTRY OF MATERIALS
(2023)
Article
Chemistry, Physical
Alhoda Abdelmoneim, Mohamed Sh. Abdel-wahab, June Key Lee, Meera Moydeen Abdul Hameed, Badr M. Thamer, Abdullah M. Al-Enizi, Rayana Ibrahim Alkhalifah, Wael Z. Tawfik
Summary: In this study, cuprous oxide (Cu2O) thin films were fabricated using a simple sputtering technique. The films were deposited on both traditional fluorine-doped tin oxide (FTO) and Ti-metallic substrates. X-ray diffraction analysis confirmed the cubic crystal structure of the Cu2O layer. Optical properties were characterized using a UV-Vis spectrophotometer, and the optical bandgap was determined to be approximately 2.15 eV. XPS and scanning electron microscopy were employed for structural and morphological investigations. Optoelectronic behavior was evaluated using a Keithley source meter, and various parameters such as external quantum efficiency, sensitivity, responsivity, and detectivity were calculated based on experimental data.
Article
Mathematics
Majed Alowaidi, Sunil Kumar Sharma, Abdullah AlEnizi, Shivam Bhardwaj
Summary: This paper proposes the CPBS-AI framework for handling the complexities of systems thinking and communication between independent Cyber-Physical Systems (CPSs), and addresses the identification and prevention of security threats.
ELECTRONIC RESEARCH ARCHIVE
(2023)
Article
Chemistry, Physical
Ally Guo, Avery E. Baumann, Eric D. Rus, Christopher M. Stafford, David Raciti
Summary: This study investigates the influence of polymer overlayers on the catalytic activity of Ag for electrochemical CO2 reduction to CO. It is found that different thicknesses of polystyrene and poly(4-vinylpyridine) films can manipulate the reaction activity of CO2 reduction. Polystyrene significantly suppresses the CO2 reduction activity while enhancing the hydrogen evolution reaction (HER), whereas the addition of a nitrogen heteroatom into polystyrene increases the conversion of CO2 to CO and suppresses HER. Block copolymers with both phenyl and pyridyl functionalities exhibit similar CO evolution activity but further suppress HER compared to the polymer layer containing only pyridine groups. The size of the blocks in the copolymers affects the catalytic output of the Ag electrode, suggesting that the hierarchical structure in the block copolymer layer plays a role in catalytic activity. Analysis of the polymer overlayers indicates that polystyrene inhibits ion transport to the metal electrode, while poly(4-vinylpyridine) enables CO2 transport and modifies the electronics of the Ag active site. Therefore, the engineered application of polymer overlayers, especially those containing heteroatoms, offers new avenues for electrochemical CO2 reduction.
JOURNAL OF PHYSICAL CHEMISTRY C
(2023)
