Article
Materials Science, Characterization & Testing
Ivan Argatov, Vitaly Kocherbitov
Summary: A new fitting model for sorption by glassy polymers is proposed based on the Flory-Huggins equation with a composite formula for the interaction parameter chi. The study shows a correlation between the endpoint of the glass transition region and the position of the maximum of the interaction parameter, providing a theoretical framework for glass transition analysis. Through the analysis, the solvent-induced glass transition temperature variation can be estimated from the sorption isotherm.
Article
Multidisciplinary Sciences
Maaz Akhtar, Sayyad Zahid Qamar, Murtuza Mehdi, Tasneem Pervez, Moosa Al-Kharusi
Summary: This paper focuses on a novel method of estimating the polymer-fluid interaction parameter by swelling and mechanical testing. The results show that the parameter value decreases as swelling progresses, with a larger decrease in high-salinity solution compared to low-salinity solution.
ARABIAN JOURNAL FOR SCIENCE AND ENGINEERING
(2022)
Article
Engineering, Chemical
Bianca Consorti Bussamra, Devi Sietaram, Peter Verheijen, Solange I. Mussatto, Aline Carvalho da Costa, Luuk van der Wielen, Marcel Ottens
Summary: This article provides an analysis on published models used to calculate phase separation in aqueous two-phase systems (ATPS) based on Flory-Huggins (FH) theory, showing different mathematical approaches and the limitations of the model in quantitatively describing the data. The study highlights the use of a thermodynamic model for sensitivity analysis on parameters influencing phase separation, while also pointing out the difficulties in accurately estimating interchange energy and the exact description of phase separation in salt based ATPS using FH theory.
SEPARATION AND PURIFICATION TECHNOLOGY
(2021)
Article
Nanoscience & Nanotechnology
Kakaraparthi Kranthiraja, Akinori Saeki
Summary: This study verifies the potential of machine learning models in organic photovoltaics through experiments and develops a new series of polymers for non-fullerene organic photovoltaics. The experimental results demonstrate a good agreement between the predictions of the machine learning models and the actual performance. The study also explains this consistency through parameters such as surface morphology, photoconductivity, and charge carrier mobility.
ACS APPLIED MATERIALS & INTERFACES
(2022)
Article
Chemistry, Physical
Ivan Fortelny, Josef Juza
Summary: Polymer blends can be made compatible by using block and graft copolymers that have blocks identical to, miscible with, or adhering to related components of the blend. Simple models of compatibilized blends, based on the work of Leibler and its modification by Retsos, have been extended. The modification, based on Noolandi and Hong's analysis of the mean field formula for a decrease in the interfacial tension, provides a higher amount of copolymer in the interfacial region and higher compatibilization efficiency than previous models. Contrary to previous theories, this modification predicts maximum compatibilization efficiency for copolymer blocks somewhat shorter than the homopolymers.
COLLOID AND POLYMER SCIENCE
(2023)
Article
Chemistry, Physical
Josef Juza, Ivan Fortelny
Summary: Through studying various models, this paper provides a more general solution to the compatibility issues in polymer blends, which is consistent with the previous dry brush and wet brush models.
COLLOID AND POLYMER SCIENCE
(2022)
Article
Chemistry, Physical
Josef Juza, Ivan Fortelny
Summary: The interaction parameters between copolymer blocks and homopolymers play a crucial role in the efficiency of compatibilizers. Factors affecting compatibilization efficiency include copolymer block length ratio and interaction between individual segments. Copolymers with slightly longer chain of units compatible with the dispersed phase show maximum compatibilization efficiency.
COLLOID AND POLYMER SCIENCE
(2021)
Article
Chemistry, Applied
Palak Mahajan, Manab Bandhu Bera
Summary: Hydrogels are widely used as delivery vehicles for nutraceuticals/drugs, and this study utilized lysine modified kutki millet starch (Lys9-KMS) hydrogel to load gallic acid (GA). The network parameters were manipulated using ethanol-water mixtures to achieve a suitable mesh size for GA loading without compromising the structure. The proposed approach allowed for estimation and control of the loading capacity, and modeling of the diffusivity ratio provided insights into the hydration and free volume per molecule of solvent. The findings suggest the potential for more efficient design of functional foods.
FOOD HYDROCOLLOIDS
(2023)
Article
Biochemistry & Molecular Biology
Zhengwu Long, Sijia Zhou, Shaoting Jiang, Wenbo Ma, Yanhuai Ding, Lingyun You, Xianqiong Tang, Fu Xu
Summary: This study investigated the compatibility between asphalt and nanosilica through molecular dynamics simulation, revealing that the incorporation of nanosilica alleviates the volatilization of saturates in asphalt and improves their compatibility.
JOURNAL OF MOLECULAR MODELING
(2021)
Article
Energy & Fuels
Han Li, Hongkang Gong, Mengjie Sun, Huimin Zhang, Chao Ji, Chunjun Liang, Fangtian You, Xiping Jing, Xiangfei Kong, Zhiqun He
Summary: A donor-acceptor-type discotic organic material (TP-2-PIE), with self-organizing ability, is selected as the third component to blend with other materials in polymer solar cells. The complementary absorption and energy transfer between TP-2-PIE and other components enhance photocurrent generation and overall photovoltaic performance.
Article
Thermodynamics
Xingwang Jiang, Xiaojing Yuan, Xiaohui Guo, Fanqi Zeng, Huiyu Wang, Guangyong Liu
Summary: This study calculated the sorption and permeation coefficients of amine solvents in a blend of hydrogenated nitrile rubber and ethylene propylene diene monomer rubber (HNBR/EPDM) and verified the transport mechanism of the solvents. The Flory-Huggins interaction parameters between the solvent and HNBR/EPDM were obtained using one-dimensional and three-dimensional solubility parameters, and their predictive powers in the solvents' transport behavior and cross-linking density calculation were studied and compared.
FLUID PHASE EQUILIBRIA
(2022)
Article
Polymer Science
Sang-In Lee, Min-Guk Seo, June Huh, Hyun-jong Paik
Summary: The temperature dependence of the Flory-Huggins interaction parameter chi for PBA-b-PMMA was quantified using SAXS analysis and RPA theory. The enthalpic contribution of chi was found to be 1.7-4.5 times smaller for PBA-b-PMMA compared to styrene-diene-based block copolymers. This suggests that these fully acrylic components are desirable for constituting terpolymers used in thermally stable and mechanically resilient elastomers.
Article
Polymer Science
Sang-In Lee, Min-Guk Seo, June Huh, Hyun-jong Paik
Summary: We investigated the segregation behavior of a molten diblock copolymer, introducing styrene as a comonomer to modulate the interaction between homopolymer and random copolymer block. The temperature dependence of the effective interaction parameter was evaluated using small-angle X-ray scattering (SAXS), which showed good agreement with the mean-field binary interaction model. This study suggests that the introduction of a random copolymer block can effectively reduce the incompatibility of the block copolymer system.
Article
Chemistry, Physical
Sara Yazdani, Mehrdad Mozaffarian, Gholamreza Pazuki, Naghmeh Hadidi
Summary: The objective of this study is to investigate the interaction between components in a novel and stable drug delivery system for delivering amphotericin B (Amb) as a model drug. The stability of the drug-carrier conjugation is crucial for efficient drug administration. The study analyzes the interactions and miscibility of drug delivery system components and confirms favorable interactions between the drug and carrier, providing the required stability.
JOURNAL OF MOLECULAR LIQUIDS
(2022)
Article
Chemistry, Medicinal
Haiyang Wu, Zhixiang Cui, Yingnan Huo, Yujiao Sun, Xin Zhang, Jian Guan, Shirui Mao
Summary: The study aimed to investigate the influence of drug-carrier compatibility and preparation method on PTX-loaded LLCNs. It was found that lipid and stabilizer type significantly affected drug encapsulation efficiency, and LLCNs prepared under low energy input conditions had higher drug encapsulation efficiency and smaller particle size.
JOURNAL OF PHARMACEUTICAL SCIENCES
(2021)
Article
Chemistry, Physical
Mythreyi Unni, Jinling Zhang, Thomas J. George, Mark S. Segal, Z. Hugh Fan, Carlos Rinaldi
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2020)
Article
Materials Science, Multidisciplinary
Connor S. Smith, Shehaab Savliwala, Sara C. Mills, Jennifer S. Andrew, Carlos Rinaldi, David P. Arnold
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS
(2020)
Article
Chemistry, Multidisciplinary
Brittany D. Partain, Mythreyi Unni, Carlos Rinaldi, Kyle D. Allen
JOURNAL OF CONTROLLED RELEASE
(2020)
Article
Engineering, Biomedical
Zhiyuan Zhao, Carlos Rinaldi
PHYSICS IN MEDICINE AND BIOLOGY
(2020)
Article
Energy & Fuels
Ivanise Guilherme Branco, Kacoli Sen, Carlos Rinaldi
CHEMICAL ENGINEERING AND PROCESSING-PROCESS INTENSIFICATION
(2020)
Article
Multidisciplinary Sciences
Andreina Chiu-Lam, Edward Staples, Carl J. Pepine, Carlos Rinaldi
Summary: The study reports on an mCPA containing superparamagnetic iron oxide nanoparticles that can increase the preservation time of cryopreserved organs through nanowarming, reduce damage caused by slow rewarming, and have low cytotoxicity. The results demonstrate that this formulated mCPA is suitable for perfusion, vitrification, and nanowarming of whole organs.
Review
Chemistry, Applied
Angelie Rivera-Rodriguez, Carlos M. Rinaldi-Ramos
Summary: Magnetic nanoparticles are of interest for biomedical applications due to their biocompatibility, tunable surface chemistry, and ability to be actuated by applied magnetic fields. They exhibit a dynamic response to time-varying magnetic fields, enabling their use as tracers in magnetic particle imaging and for conversion of magnetic energy to heat.
ANNUAL REVIEW OF CHEMICAL AND BIOMOLECULAR ENGINEERING, VOL 12, 2021
(2021)
Article
Orthopedics
B. D. Partain, Q. Zhang, M. Unni, J. Aldrich, C. M. Rinaldi-Ramos, S. Narayanan, K. D. Allen
Summary: This study uses X-ray photon correlation spectroscopy (XPCS) to evaluate dynamic interactions between intact cartilage and biofluids at the nanometer scale. Results show that cartilage ECM mobility varies with length scale and fluid environment, demonstrating the importance of biosolid-biofluid interactions in dictating ECM dynamics. XPCS can provide unique insights into spatially resolved cartilage ECM mobility.
OSTEOARTHRITIS AND CARTILAGE
(2021)
Article
Multidisciplinary Sciences
Mythreyi Unni, Shehaab Savliwala, Brittany D. Partain, Lorena Maldonado-Camargo, Qingteng Zhang, Suresh Narayanan, Eric M. Dufresne, Jan Ilavsky, Pawel Grybos, Anna Koziol, Piotr Maj, Robert Szczygiel, Kyle D. Allen, Carlos M. Rinaldi-Ramos
Summary: The diffusion behavior of polymer-coated inorganic nanoparticles in synovial fluid can be well described by the Stokes-Einstein relationship, with an effective medium viscosity much smaller than the macroscopic low shear viscosity of the fluid. The additional viscous dissipation in the effective medium viscosity is attributed to the presence of polymer segments, shedding light on the diffusive behavior of these nanoparticles in complex and crowded biological environments such as the joint.
Article
Chemistry, Physical
Zhi Wei Tay, Shehaab Savliwala, Daniel W. Hensley, K. L. Barry Fung, Caylin Colson, Benjamin D. Fellows, Xinyi Zhou, Quincy Huynh, Yao Lu, Bo Zheng, Prashant Chandrasekharan, Sindia M. Rivera-Jimenez, Carlos M. Rinaldi-Ramos, Steven M. Conolly
Summary: This study explores the advantages and new discoveries of superferromagnetic iron oxide nanoparticle chains in medical imaging, demonstrating their potential to improve image resolution and signal-to-noise ratio, as well as investigating their potential applications in medical imaging.
Article
Biotechnology & Applied Microbiology
Nicole S. Sarna, Leyda Marrero-Morales, Ryan DeGroff, Angelie Rivera-Rodriguez, Sitong Liu, Andreina Chiu-Lam, Hayden J. Good, Carlos M. Rinaldi-Ramos
Summary: This study presents anatomically correct 3D-printed mouse phantoms for magnetic particle imaging (MPI) studies. These phantoms, based on the Digimouse 3D whole body mouse atlas, incorporate cavities representative of different tumors and organs, allowing for the evaluation of MPI tracer dose effects. The results demonstrate the accuracy of the proposed image analysis method for tracer mass estimation and highlight the importance of tracer distribution details on the limit of detection in MPI.
BIOENGINEERING & TRANSLATIONAL MEDICINE
(2022)
Article
Chemistry, Multidisciplinary
Sitong Liu, Matthew Po, Anahita Heshmat, Evan Anguish, Jennifer Andrew, Carlos M. Rinaldi-Ramos
Summary: Hafnium oxide nanoparticles (HNCs) formulated using flash nanoprecipitation (FNP) exhibit high X-ray attenuation and low cost, making them attractive as computed tomography (CT) contrast agents. A simple 3D-printed FNP mixer was used to produce HNCs with controlled hydrodynamic size ranging from 100-300 nm. Evaluation in both pre-clinical small animal scanner and clinical scanner showed that the HNCs provide approximately 1.5 times greater contrast enhancement compared to the commercially used iodinated molecular contrast agent Omnipaque.
JOURNAL OF NANOPARTICLE RESEARCH
(2023)
Article
Chemistry, Physical
Victor G. Rivera-Llabres, Kara N. Gentry, Matthew Po, Carlos M. Rinaldi-Ramos
Summary: The study reports the formulation of size tunable magnetic alginate microparticles (MAMs) using a 3D flow-focusing microfluidic device. The stability of iron oxide nanoparticles (IONPs) coated with polyethylene glycol (PEG) in alginate and calcium ethylenediamine tetraacetic acid solutions is investigated. The average size and coefficient of variance of MAMs are found to vary with droplet and continuous phase flow rates and viscosities. Crosslinking and drying of droplets result in smaller MAMs with a low coefficient of variance. The findings can guide future research on the role of MAM size in different applications.
PARTICLE & PARTICLE SYSTEMS CHARACTERIZATION
(2023)
Article
Nanoscience & Nanotechnology
Lily E. Diodati, Sitong Liu, Carlos M. Rinaldi-Ramos, Brent S. Sumerlin
Summary: Covalent adaptable networks (CANs) combine the stability of thermosets with the reprocessability of thermoplastics through the incorporation of dynamic crosslinks. In this study, we incorporated Fe3O4 nanoparticles as fillers in a vinylogous urethane vitrimer to facilitate induction heating processing. Despite the common decrease in flow rate and reprocessing difficulty caused by the inclusion of inorganic fillers, the presence of Fe3O4 nanoparticles did not affect the flow behavior of the vitrimer, possibly due to the nanoparticles' catalytic effect on dynamic exchange chemistry. Two methods of incorporating the nanoparticles were employed, and the vitrimers with covalently crosslinked nanoparticles exhibited a shorter relaxation time compared to those with blended nanoparticles. The magnetic character of the Fe3O4 nanoparticles enabled self-healing of the vitrimer composite materials during induction heating.
ACS APPLIED MATERIALS & INTERFACES
(2023)
Article
Chemistry, Multidisciplinary
Sitong Liu, Anahita Heshmat, Jennifer Andrew, Izabella Barreto, Carlos M. M. Rinaldi-Ramos
Summary: Magnetic particle imaging (MPI) is a novel imaging modality that tracks the distribution of superparamagnetic iron oxide nanoparticles (SPIONs) for biomedical applications. However, it lacks anatomical information. Computed tomography (CT) provides high-resolution anatomical information. Combining MPI and CT could offer a multimodal imaging agent with improved diagnostic capabilities.
NANOSCALE ADVANCES
(2023)
Article
Materials Science, Multidisciplinary
Bibhutibhusan Nayak, S. Narayana Jammalamadaka
Summary: This article presents a method for remote detection of bovine serum albumin (BSA) using modified cantilever beam magnetometry (CBM). By combining a magnetostrictive Fe70Ga30 cantilever with optical detection technique, researchers were able to detect high concentrations of BSA remotely. The results of this study demonstrate the potential of this method in estimating the magnetostriction of thin films.
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS
(2024)
Article
Materials Science, Multidisciplinary
Yu Hao, R. E. Camley, Z. Celinski
Summary: Magnetic particles have various applications and their magnetic state is determined by their size and the strength of an applied magnetic field. Numerical simulations were performed to study the effect of an applied field on the critical size of single-domain magnetic particles, and the critical field at which a particle becomes single-domain was determined.
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS
(2024)
Article
Materials Science, Multidisciplinary
Nitesh Singh, Naresh Kumar, Dharohar Sahadot, Anil Annadi, Vidyadhar Singh, Murtaza Bohra
Summary: The unique magnetic properties of FM/AFM and hard-FM/soft-FM nanocomposite thin films have significant relevance for numerous applications. The composition and performance of different magnetic phases in the nanocomposite films can be significantly affected by the laser ablation conditions and annealing temperature.
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS
(2024)
Article
Materials Science, Multidisciplinary
Alya Ali Musaed, Samir Salem Al-Bawri, Khaled Aljaloud, Wazie M. Abdulkawi, Mohammad Tariqul Islam, Mandeep Jit Singh, Zaini Sakawi, Husam Hamid Ibrahim
Summary: This research presents a wideband tunable metamaterial for body-centric applications in the millimeter-wave frequency band. The proposed metamaterial has a wide operating frequency range and enhanced gain, making it suitable for improving the antenna performance in 5G wireless communication systems.
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS
(2024)
Article
Materials Science, Multidisciplinary
Binod K. Rai, Boris Maiorov, Krzysztof Gofryk, Patrick O'Rourke, Catherine Housley, Henry Ajo, Asraf Sawon, Arjun K. Pathak, Narayan Poudel, Qiang Zhang, Travis J. Williams, Matthias Frontzek
Summary: This manuscript reports on the structural and magnetic properties of NdCuGa3. The study confirmed the crystal structure and magnetic phase transition of NdCuGa3 using XRD, neutron diffraction, magnetization, and specific heat measurements. The neutron diffraction data further confirmed the antiferromagnetic phase of NdCuGa3.
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS
(2024)
Article
Materials Science, Multidisciplinary
Haonan Li, Cong Li, Hailiang Huang, Guodong Hao, Fei Wang
Summary: The electronic structure and ferroelectric-ferromagnetic coupling properties of Y-doped and vacancy-containing GaN-ZnO heterojunctions are systematically investigated. The magnetism in vacancy-containing systems is generated by the spin polarization of unpaired electrons induced by cationic vacancies, while in Y-doped systems, bound magnetic polarons are formed by the orbital hybridization of s-state and d-state electrons of Y-doped elements.
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS
(2024)
Article
Materials Science, Multidisciplinary
Muhammad Ijaz, Hafeez Ullah, Bandar Ali Al-Asbahi, Mati Ullah Khan, Zaheer Abbas, Sana Ullah Asif
Summary: M-type BaFe11.4-xAlxCo0.6O19 hexaferrites with Al3+ substitutions were synthesized using the co-precipitation method followed by Sonochemical process. The synthesized materials were characterized using XRD, FTIR, UV-vis spectroscopy, VSM, SEM, and LCR meter. The results showed that aluminum doping decreased the band gap and enhanced the magnetic and dielectric properties of the hexaferrites, making them suitable for various applications.
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS
(2024)
Article
Materials Science, Multidisciplinary
Oleg I. Utesov
Summary: The elementary excitations spectrum of anisotropic frustrated antiferromagnets in the fan phase is discussed. It is found that the low-energy part of the spectrum consists of a gapless phason branch with linear dispersion and a gapped optical branch corresponding to the fan structure amplitude oscillations. In the high-energy part of the spectrum, the excitations are similar to the magnons of the fully polarized phase.
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS
(2024)
Article
Materials Science, Multidisciplinary
Alexander Ya. Simonovskii, Alexander A. Yanovskii, Arthur R. Zakinyan
Summary: In this study, the departure frequency of vapor bubbles during boiling of ferrofluid in a horizontal magnetic field is experimentally investigated. Two methods, visual and inductive, are used to measure the frequency of bubble departure. The results show that the bubble departure frequency can decrease with increasing magnetic field strength and increase with increasing temperature of the heat-emitting surface. A linear stability analysis is conducted to analyze the influence of the magnetic field on the frequency of bubble formation during ferrofluid boiling.
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS
(2024)
Article
Materials Science, Multidisciplinary
Oleg Heczko, Michal Rames, Vit Kopecky, Petr Vertat, Michal Varga, Ladislav Straka
Summary: Heusler Ni-Mn-Ga alloys are multiferroic materials that exhibit magnetic shape memory (MSM) phenomena. By doping transition elements into Ni2MnGa alloys, the transformation temperatures can be modified and complex behaviors can be observed, such as the variation in saturation magnetization and the effects of elemental substitution on compound properties.
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS
(2024)
Article
Materials Science, Multidisciplinary
Carlos Ariel Samudio Perez, Ariel Flaig de Marchi
Summary: This study investigates the electronic and magnetic properties of the Full-Heusler Fe2MnAs alloy using first-principles calculations. The alloy may form spontaneously and exhibits a ferromagnetic order and high spin-polarization. It can be transformed into a half-metal by contracting the lattice constant. Additionally, certain defects contribute to the spin-polarization of the alloy, making it a fully half-metallic material.
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS
(2024)
Article
Materials Science, Multidisciplinary
Satish Geeri, Aditya Kolakoti, Prasadarao Bobbili
Summary: In this study, an electromagnetic wave-absorbing material was fabricated using a polymer composite material with fiber orientation and Multiwall Carbon Nanotubes as filler materials, along with a Perfect Electric Conducting material. The experiments demonstrated strong electromagnetic absorbing properties for the composites with PEC-coated and non-PEC-coated materials. Mechanical, thermal, and morphological analysis confirmed the similar trend in properties. CRITIC analysis helped identify the sequence order of sustaining properties for the fabricated composites.
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS
(2024)
Article
Materials Science, Multidisciplinary
Yankai Chen, Ruoxue Zhang, Yukai An
Summary: The piezoelectricity, valley character, and magnetic properties of 2H-VS2 monolayer were studied, revealing its potential applications in spintronics and valleytronics due to its bipolar magnetic semiconductor characteristics and superior physical properties.
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS
(2024)
Article
Materials Science, Multidisciplinary
Leonardo S. Lima
Summary: This study investigates the thermodynamic quantities, such as entropy, specific heat, and magnetic susceptibility, in the next-nearest-neighbors Heisenberg model on a honeycomb-kagome lattice. The linear spin-wave approach is applied to obtain the temperature-dependent behavior of these quantities. Additionally, the entanglement negativity, a quantifier of quantum entanglement, and the spin Hall conductivity are also studied. The results show that all the thermodynamic quantities, as well as the entanglement negativity and spin Hall conductivity, exhibit an increasing trend with temperature. Furthermore, it is found that all the analyzed quantities approach zero in the low-temperature limit, consistent with experimental observations.
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS
(2024)
Article
Materials Science, Multidisciplinary
Zhaoxing Wang, Maximilian Kai Reimann, Wang Chen, Yikun Zhang, Rainer Poettgen
Summary: The Mo2FeB2-type compounds RE2Ga2Mg (RE = Tm, Er, Ho) exhibit a large magnetocaloric effect, making them promising for cryogenic magnetic cooling applications.
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS
(2024)
