Article
Materials Science, Biomaterials
Xue Feng, Yuxiang Xue, Sevil Gonca, Kunlang Ji, Mei Zhang, Francisco R. Garcia-Garcia, Quan Li, Yi Huang, Konstantin V. Kamenev, Xianfeng Chen
Summary: The intrinsic pathological characteristics of tumor microenvironments limit the deep penetration of nanomedicines, but magnetophoresis using external magnetic force shows promise in improving their tumor penetration. However, current research mainly focuses on large nanoparticles, neglecting ultrasmall superparamagnetic iron oxide (Fe3O4) nanoparticles.
JOURNAL OF MATERIALS CHEMISTRY B
(2023)
Article
Nanoscience & Nanotechnology
Duong Hong Quyen, Nguyen Quang Hung, Hoang Thi Kieu Nguyen
Summary: The study demonstrated that the average particle size of cobalt ferrite nanoparticles varies between 5.7-10.7nm as the reaction temperature increases, with a transition from ferrimagnetic to superparamagnetic behaviors observed at 40 degrees C. The critical size for superparamagnetic limit with zero coercivity was found to be around 6 nm, showing an impressive saturation magnetization value of 25.4 emu/g compared to similar studies.
JOURNAL OF NANO RESEARCH
(2021)
Article
Biotechnology & Applied Microbiology
Gloria Amo-Duodu, Emmanuel Kweinor Tetteh, Nomthandazo Precious Sibiya, Sudesh Rathilal, Martha Noro Chollom
Summary: This study synthesized six different magnetic nanoparticles using the co-precipitation method and investigated their application in anaerobic digestion for wastewater treatment. The results showed that the addition of nanoparticles effectively removed COD and turbidity from the wastewater, and increased the methane yield.
BIOFUELS BIOPRODUCTS & BIOREFINING-BIOFPR
(2023)
Article
Chemistry, Physical
Behnam Azadpour, Faezeh Kashanian, Mehran Habibi-Rezaei, Seyyed Ali Seyyed Ebrahimi, Roozbeh Yazdanpanah, Zahra Lalegani, Bejan Hamawandi
Summary: L-arginine modified magnetite nanoparticles were synthesized in a one-step co-precipitation method and coated with pre-oxidized dextran. The resulting nanoparticles exhibited superparamagnetic behavior and their core was identified as magnetite.
Article
Chemistry, Multidisciplinary
O. M. Lemine, Saja Algessair, Nawal Madkhali, Basma Al-Najar, Kheireddine El-Boubbou
Summary: This study reports the self-heating mechanisms of magnetite nanoparticles (MNPs) prepared by the Ko-precipitation Hydrolytic Basic (KHB) method. The MNPs exhibit favorable heating responses under magnetic excitation, making them promising candidates for magnetically triggered biomedical hyperthermia applications.
Article
Chemistry, Applied
Diana Moran, Gemma Gutierrez, Rafael Mendoza, Marilyn Rayner, Carmen Blanco-Lopez, Maria Matos
Summary: In this study, a microemulsion method was developed to synthesize controlled-size starch nanoparticles (SNPs). The method involved testing different formulations to prepare water-in-oil microemulsions, and the resulting SNPs were characterized in terms of size, morphology, monodispersity, and crystallinity. The method was also used to synthesize starch-based nanocomposites with superparamagnetic properties. This innovative technology shows potential for the design and development of functional nanomaterials.
CARBOHYDRATE POLYMERS
(2023)
Article
Materials Science, Multidisciplinary
H. Y. Hah, S. Gray, C. E. Johnson, J. A. Johnson, V Kolesnichenko, P. Kucheryavy, G. Goloverda
Summary: Mono-disperse iron oxide nanoparticles synthesized by high-temperature hydrolysis were studied using Mo center dot ssbauer spectroscopy, revealing a critical diameter of around 11 nm for room temperature superparamagnetism. Particles larger than 11.9 nm exhibited ferrimagnetic properties, while particles smaller than 10.6 nm showed superparamagnetism.
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS
(2021)
Article
Materials Science, Ceramics
Rohit Ranga, Krishan Kumar, Ashok Kumar
Summary: Lanthanum doped magnesium-zinc spinel ferrite samples were synthesized by the co-precipitation method. The effects of La3+ ion doping on crystallite size and lattice parameter were discussed. The samples showed a crystallite size range of 7-12 nm, percentage porosity range of 49-50%, and percentage crystallinity range of 80-85%. FTIR spectra shift to higher region with La3+ ion doping. EDS analysis confirmed the absence of impurities except carbon. EPR analysis showed a decrease in g-value and a shift in resonance field for the synthesized samples. The synthesized samples exhibited superparamagnetic nature and low coercive field value, making them suitable for ferrofluids and hyperthermia treatment applications.
CERAMICS INTERNATIONAL
(2023)
Article
Chemistry, Physical
Enrico Bianchetti, Cristiana Di Valentin
Summary: Through density functional theory calculations, it has been found that using multidentate ligands can inhibit the process of spin-canting in nanoparticles, and the presence of anchoring organic acids can also interfere with structural disorder.
JOURNAL OF PHYSICAL CHEMISTRY LETTERS
(2022)
Article
Physics, Applied
David Slay, Dongmei Cao, Eric C. Ferre, Michalis Charilaou
Summary: This study reveals that dipole-dipole interactions have a strong effect on the collective magnetic state, despite thermal fluctuations, and should be considered in high-frequency applications. The configuration of iron-oxide nanoparticles has a significant impact on their effective magnetic anisotropy at short time scales, an order of magnitude larger than the intrinsic magnetocrystalline anisotropy.
JOURNAL OF APPLIED PHYSICS
(2021)
Article
Chemistry, Physical
Ilya V. Yakovlev, Stanislav S. Yakushkin, Mariya A. Kazakova, Sergey N. Trukhan, Zoya N. Volkova, Alexander P. Gerashchenko, Andrey S. Andreev, Arcady V. Ishchenko, Oleg N. Martyanov, Olga B. Lapina, Jean-Baptiste d'Espinose de Lacaillerie
Summary: The research combines Co-59 IF NMR and FMR spectroscopies to study metallic Co nanoparticles enclosed in carbon nanotubes, revealing most particles as prolate spheroids with an aspect ratio between 1 and 2. The accurate calculation of superparamagnetic blocking size is achieved by introducing the actual volume of ellipsoids from image processing. Additionally, Co-59 IF NMR and FMR experiments conducted at different temperatures demonstrate the thermal blocking of superparamagnetic particles, aligning with TEM particle volume distribution, thus confirming the effectiveness of magnetic resonance techniques for Co nanoparticle characterization in bulk samples.
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
(2021)
Article
Materials Science, Multidisciplinary
Mohammad Jafari Eskandari, Iraj Hasanzadeh
Summary: This study synthesized magnetic Fe3O4 nano-powder using chemical co-precipitation method with the assistance of ultrasonic waves and an alternating magnetic field. Various agitation factors and the use of KOH as the precipitation agent were studied for their effects on particle size and properties. The resulting Fe3O4 nanoparticles showed significant properties and superparamagnetic behavior.
MATERIALS SCIENCE AND ENGINEERING B-ADVANCED FUNCTIONAL SOLID-STATE MATERIALS
(2021)
Article
Chemistry, Multidisciplinary
Dillip Kumar Mohapatra, Philip J. Camp, John Philip
Summary: The influence of particle size polydispersity on field-induced structures and structural transitions in magnetic fluids was investigated using various methods. High polydispersity led to the formation of different aggregates compared to low polydispersity samples. Insights into the structural evolution with increasing magnetic field strength were obtained through Brownian dynamics simulations.
NANOSCALE ADVANCES
(2021)
Article
Engineering, Environmental
Menglu Wang, Xuemei Wang, Meng Zhang, Wei Han, Zhuang Yuan, Xinlian Zhong, Ling Yu, Hongbing Ji
Summary: A new type of magnetic adsorbent (SBNa800) was developed using industrial waste steel slag and ginkgo leaves to treat wastewater contaminated with Cd(II) and As(V). SBNa800 exhibited high adsorption capacities for both Cd(II) and As(V), with adsorption capacities exceeding 90% at pH 4. The adsorption mechanisms of Cd(II), As(V) and As(III) were hydrogen bonding/electrostatic attraction, inner-sphere complexation and precipitation.
JOURNAL OF HAZARDOUS MATERIALS
(2023)
Article
Engineering, Electrical & Electronic
Edi Suharyadit, Taufikuddin Alfansuri, Lia Saptini Handriani, Nur Aji Wibowo, Harsojo Sabarman
Summary: Two types of GMR sensors were investigated for their response to magnetic nanoparticles, revealing that the addition of PEG led to an increase in nanoparticle size and a decrease in saturation magnetization, resulting in a decrease in output voltage.
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
(2021)
Article
Materials Science, Multidisciplinary
Muhammad Haris Azhar, Tayyaba Noor, Naseem Iqbal, Neelam Zaman, Sarah Farrukh
Summary: This study uses a novel adsorbent Metal Organic Framework (MOF) and its composites to adsorb CO2. Experiment results show that 5 wt% g-C3N4/Ni-BDC MOF exhibits the highest adsorption capacity.
MATERIALS SCIENCE AND ENGINEERING B-ADVANCED FUNCTIONAL SOLID-STATE MATERIALS
(2024)
Article
Materials Science, Multidisciplinary
Ayumu Nodera, Shinya Aikawa
Summary: In this study, a CO2 sensor capable of low-temperature operation was fabricated using an open-channel-type thin-film transistor structure with a polar surface of an oxide semiconductor. The sensor showed a sensitivity 2.9 times greater than that under an inert N2 atmosphere at an operating temperature of only 150 degrees C. The results suggest that TFTs fabricated with polar surfaces of oxide semiconductors are useful for gas-sensing applications.
MATERIALS SCIENCE AND ENGINEERING B-ADVANCED FUNCTIONAL SOLID-STATE MATERIALS
(2024)
Article
Materials Science, Multidisciplinary
Bindhyabasinee Mishra, Jyotirmayee Nanda, Subhra S. Brahma, K. J. Sankaran, R. Sakthivel, S. Ghadei, S. Suman
Summary: In this study, a series of polycrystalline mixed spinel ferrites were synthesized and characterized. The Mg0.5Zn0.5La0.05Fe1.95O4 ferrite showed the best response and recovery time, indicating its potential as a material for LPG sensing.
MATERIALS SCIENCE AND ENGINEERING B-ADVANCED FUNCTIONAL SOLID-STATE MATERIALS
(2024)
Review
Materials Science, Multidisciplinary
Rajashree Panda, Mitrabhanu Behera, A. Arun Kumar, Dhananjay Joshi
Summary: Rare earth doped aluminate-based phosphors are preferred over sulfide-based phosphors. The unique luminescence features of lanthanide-based materials are being utilized for multidisciplinary research and inventive applications. The past years have seen an increase in research interest in aluminate-based phosphors, leading to improvements in their long-lasting phosphorescence and phosphorescence efficiencies. Combustion synthesis route is an efficient technique for preparing nano-phosphor due to its simplicity and cost-effectiveness.
MATERIALS SCIENCE AND ENGINEERING B-ADVANCED FUNCTIONAL SOLID-STATE MATERIALS
(2024)
Review
Materials Science, Multidisciplinary
Younes Zohrabi
Summary: Water is essential for the survival of living organisms, but industrialization has led to contamination of water sources with heavy metals and harmful pollutants. Magnetic nano ferrites have shown potential in effectively removing heavy metals from water due to their magnetic characteristics, high surface area, surface active sites, chemical stability, and ease of modification. This review explores recent literature on the synthesis and application of magnetic ferrites for removing heavy metals from water, aiming to provide a comprehensive understanding for future research.
MATERIALS SCIENCE AND ENGINEERING B-ADVANCED FUNCTIONAL SOLID-STATE MATERIALS
(2024)
Article
Materials Science, Multidisciplinary
Baolin Liu, Chenxin Xie, Guanglei Qian, Lishan Zhou, Chenglei Zhang, Lingzhi Zhu
Summary: In this study, a self-cleaning CuO-PdO-Pd/Ti membrane has been developed for the removal of small-sized pollutants. The membrane exhibited superior removal ability and permeability compared to conventional membranes, and maintained high efficiency even after repeated tests. The CuO-PdO-Pd/Ti membrane also showed excellent removal efficiency when treating real wastewater, indicating its high potential for practical applications.
MATERIALS SCIENCE AND ENGINEERING B-ADVANCED FUNCTIONAL SOLID-STATE MATERIALS
(2024)
Article
Materials Science, Multidisciplinary
Debabrata Panda, Akhilesh Kumar Sahu, Krunal M. Gangawane
Summary: A variety of hierarchical nanoporous silica aerogels were synthesized from well-dispersed silica sols, exhibiting diversified particle distributions and excellent thermal properties. The silica aerogels showed low thermal conductivity and high-temperature resilience. Surface modification and dilution of silica sols further improved the thermal resistance of the aerogels. The resilient skeleton structure developed from tiny particles effectively restricted heat dissipation and maintained the porous network at high temperatures.
MATERIALS SCIENCE AND ENGINEERING B-ADVANCED FUNCTIONAL SOLID-STATE MATERIALS
(2024)
Article
Materials Science, Multidisciplinary
Hardy Shuwanto, Hairus Abdullah, Young Ku, Jenni Lie
Summary: In this study, a defective system of V-doped Fe2O3 with Pt as a cocatalyst was used for photoelectrochemical water oxidation. The defects in the VFPt-2.5 photoanode were characterized by XPS and EPR analyses. The SEM and TEM analyses revealed that the electrodeposited V-doped alpha-Fe2O3 had a nanosized morphology with an average diameter of 12 nm and a thickness of 300 nm. Under light irradiation, the VFPt-2.5 photoanode achieved a remarkable onset potential and photocurrent density. The stability test showed that Pt helped overcome the charge recombination caused by surface states.
MATERIALS SCIENCE AND ENGINEERING B-ADVANCED FUNCTIONAL SOLID-STATE MATERIALS
(2024)
Article
Materials Science, Multidisciplinary
Reza Gholipur, Hemin Mohammed Ali Khalifa, Khatereh Afrouzeh
Summary: Developing doped cathode materials is crucial for achieving low cost and high-performance energy storage. LiMn1.977(Ce, Cu, Ti, CeCuTi)0.023O4 nanoparticles show unmatched high structural stability, capacity, and safety during charge/discharge cycles. Ti-doped LiMn2O4 cathode calcined at 700 degrees C demonstrates the highest capacity and retention when multi-walled carbon nanotubes are added. The presence of titanium increases the porosity for reversible lithium storage and the dielectric constant.
MATERIALS SCIENCE AND ENGINEERING B-ADVANCED FUNCTIONAL SOLID-STATE MATERIALS
(2024)
Article
Materials Science, Multidisciplinary
T. Amutha, M. Rameshbabu, S. Sasi Florence, G. Ramalingam, S. Muthupandi, K. Prabha
Summary: This research provides an overview of the structural analysis and magnetic characteristics of dilute magnetic semiconductor oxides (DMSOs) based on binary metal oxide nanomaterials with different ferromagnetic or paramagnetic dopants. The coprecipitation method was used to create nanoparticle samples, and the results showed certain ferromagnetic behavior and increased magnetic properties.
MATERIALS SCIENCE AND ENGINEERING B-ADVANCED FUNCTIONAL SOLID-STATE MATERIALS
(2024)
Article
Materials Science, Multidisciplinary
Preeti Kumari, Vipul Srivastava, Ramesh Sharma, Hamid Ullah
Summary: In this study, the rare-earth ferrites perovskite RFeO3 (R = Pr, Nd) were investigated for their various properties including structural, electronic, magnetic, optical, thermodynamic, and thermoelectric behavior. The study found that these materials exhibit half-metallic behavior under certain conditions, and their optical and thermoelectric properties were evaluated, making them potential candidates for spintronic devices and UV absorbers.
MATERIALS SCIENCE AND ENGINEERING B-ADVANCED FUNCTIONAL SOLID-STATE MATERIALS
(2024)
Article
Materials Science, Multidisciplinary
Shuting Yuan, Tianchi Wang, Tian Feng, Jian Kong
Summary: In this study, Fe/Fe3O4/C hollow electromagnetic wave absorbers were prepared using hollow ceiba fibers as templates. The proposed hollow structure could reflect and scatter electromagnetic waves multiple times, leading to significant energy consumption. The impedance matching of magnetic materials and biochar enabled the joint absorption of magnetic and dielectric losses to absorb electromagnetic waves.
MATERIALS SCIENCE AND ENGINEERING B-ADVANCED FUNCTIONAL SOLID-STATE MATERIALS
(2024)
Article
Materials Science, Multidisciplinary
G. R. Mamatha, B. R. Radha Krushna, J. Malleshappa, S. C. Sharma, Satish Kumar, C. Krithika, Nandini Robin Nadar, Dileep Francis, K. Manjunatha, Sheng Yun Wu, H. Nagabhushana
Summary: Nanostructured SrAl2O4:Tb3+/M (M = Li+, Na+, K+, Ca2+, Bi3+) green nanophosphors were synthesized using an environmentally friendly combustion process and Areca nut as a sustainable fuel source. The introduction of alkali metal co-dopants optimized the luminescent intensity and showed potential for data security applications.
MATERIALS SCIENCE AND ENGINEERING B-ADVANCED FUNCTIONAL SOLID-STATE MATERIALS
(2024)
Article
Materials Science, Multidisciplinary
Tomoyuki Tachibana, Akihiro Yabuki
Summary: A one-step thermal-reduction method was used to synthesize copper sulfide films with different compositions and pillar-like structures, through adjusting the sulfur ratio and incorporating excess sulfur during the synthesis process.
MATERIALS SCIENCE AND ENGINEERING B-ADVANCED FUNCTIONAL SOLID-STATE MATERIALS
(2024)
Article
Materials Science, Multidisciplinary
Manal A. Mahdy, I. K. El Zawawi, Manal Mounir Ahmad
Summary: Pure PVA and its nanocomposites with CuO and/or CoFe2O4 films were prepared and characterized. The optical properties of the films can be modulated by controlling the percentage of CuO and/or CoFe2O4. The nanocomposites exhibit good ferromagnetic behavior, making the prepared films potentially useful in antenna system miniaturization and flexible magneto-electronic applications.
MATERIALS SCIENCE AND ENGINEERING B-ADVANCED FUNCTIONAL SOLID-STATE MATERIALS
(2024)