Article
Biochemistry & Molecular Biology
Lucija Mandic, Marija Matkovic, Goran Baranovic, Suzana Segota
Summary: The release kinetics of quercetin from magnetic nanoparticles can be controlled by stationary and alternating magnetic fields, affecting the distribution of quercetin between nanoparticles and the suspension within the membrane. This understanding can be applied to the release of insoluble flavonoids in aqueous suspensions.
Article
Engineering, Environmental
Jinli Huang, Wenda Zhou, Xingfang Luo, Yan Ding, Dongquan Peng, Mingyue Chen, Hang Zhou, Ce Hu, Cailei Yuan, Shouguo Wang
Summary: It has been proven that introducing alternating magnetic field (AMF) can effectively enhance the catalytic performance of magnetic nanoparticles (NPs) electrocatalysts. This study proposes a feasible design to confine monodispersed ultra-small NiSe2_X NPs in an amorphous carbon matrix and demonstrates that under AMF, the confined NPs experience spin flips that generate magnetic heating, leading to a significant improvement in hydrogen evolution reaction performance. This work provides new ideas for the preparation of ultra-small monodispersed NPs electrocatalysts that can utilize AMF to enhance catalytic performance, which is crucial for accelerating clean energy production.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Materials Science, Composites
Zhanfeng Li, Jun Dong, Yongqiang Zhang, Tingting Zhuang, Huiqi Wang, Xiaoyu Du, Xuejun Cui, Zonghua Wang
Summary: The novel magnetic micro-organogel with core-shell structure was successfully prepared by sono-catalysis method, showing a well-defined spherical morphology, appropriate stability, and strong loading capability for hydrophobic drugs. The dual-stimuli-responsive behavior of the micro-organogel makes it a potential targeted carrier for drug delivery.
COMPOSITES SCIENCE AND TECHNOLOGY
(2022)
Article
Biochemistry & Molecular Biology
Artem Ermakov, Vera Afanasyeva, Olga Ermakova, Artem Blagodatski, Anton Popov
Summary: This study investigated the effect of weak combined magnetic field (CMF) on stem cell proliferation and regeneration of the planarian Schmidtea mediterranea. The results showed that CMF with specific amplitude and frequency could accelerate the growth of the planarian head blastema, but alterations in frequency led to the disappearance of the effect or inhibition of regeneration. The influence of CMF on regeneration rate was influenced by stem cell mitotic activity and wound-induced gene expression level.
BIOCHEMICAL AND BIOPHYSICAL RESEARCH COMMUNICATIONS
(2022)
Article
Medicine, Research & Experimental
Anja Sadzak, Mihael Erakovic, Suzana Segota
Summary: Flavonoids, natural antioxidants, have potential in photodynamic cancer treatment but degrade at physiological pH. Studying their oxidation kinetics helps understand degradation and analyze release data. Incorporating flavonoids into magnetic nanocarriers can mitigate degradation and enhance solubility, with release controlled by magnetic fields. A new analytical approach combining ALS and multilinear regression is presented for considering flavonoid autoxidation in release studies.
MOLECULAR PHARMACEUTICS
(2023)
Article
Engineering, Chemical
Cihangir Boztepe, Tugce Vanli
Summary: The development of magnetic field-sensitive smart drug delivery systems with superior properties is of increasing importance. In this study, smart poly(NIPAAm-co-VSA)-rGO/Fe3O4 ferrogels with varying concentrations of reduced graphene oxide (rGO) were synthesized. The morphologic, structural, and magnetic properties of ferrogel systems were characterized. Doxorubicin (DOX) loading and release behaviors were investigated under alternating magnetic fields.
POLYMER ENGINEERING AND SCIENCE
(2023)
Article
Chemistry, Physical
Yu Knyazev, D. A. Balaev, S. Stolyar, A. A. Krasikov, O. A. Bayukov, M. N. Volochaev, R. N. Yaroslavtsev, V. P. Ladygina, D. A. Velikanov, R. S. Iskhakov
Summary: Samples of synthetic ferrihydrite with an average nanoparticle size of 2.7 nm were studied using magnetometry and Mossbauer spectroscopy, revealing the impact of magnetic interactions between ferrihydrite nanoparticles on the magnetic properties of the material and the temperature evolution of Mossbauer spectra. Comparison between results obtained on synthetic ferrihydrite and data for biogenic ferrihydrite samples with a polysaccharide shell surrounding particles showed that the shell weakens interparticle magnetic interactions.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Article
Nanoscience & Nanotechnology
Kaiming Qiao, Jianlin Wang, Shulan Zuo, Houbo Zhou, Jiazheng Hao, Yao Liu, Fengxia Hu, Hu Zhang, Adler G. Gamzatov, Akhmed Aliev, Cheng Zhang, Jia Li, Zibing Yu, Yihong Gao, Feiran Shen, Rongchang Ye, Yi Long, Xuedong Bai, Jing Wang, Jirong Sun, Rongjin Huang, Tongyun Zhao, Baogen Shen
Summary: This study demonstrates that the cyclability and low-magnetic-field performance of the adiabatic temperature change (ΔT-ad) in FeRh alloys can be greatly enhanced by introducing second phases. The introduction of second phases enables the antiferromagnetic-ferromagnetic phase transition to be driven by a lower magnetic field, resulting in a significant enhancement of ΔT-ad. Furthermore, the specific cooling power increases significantly with frequency under an alternating magnetic field. The findings provide an effective method to improve the performance of FeRh alloys in refrigeration applications.
ACS APPLIED MATERIALS & INTERFACES
(2022)
Article
Chemistry, Physical
Dogan Kaya, Idris Adanur, Mustafa Akyol, Faruk Karadag, Ahmet Ekicibil
Summary: CoPt nanoparticles were synthesized by the reduction of Pt(acac)2 and Co(acac)2 simultaneously under N-2 atmosphere with the polyol method. The structural and magnetic properties of CoPt nanoparticles are affected by the increased Pt concentration and size effects. The magnetic results showed that coercivity and exchange bias decreased with increasing temperature and Pt concentration as the nanoparticles transitioned from ferromagnetic to superparamagnetic phase.
JOURNAL OF MOLECULAR STRUCTURE
(2021)
Review
Chemistry, Multidisciplinary
Yuri I. Golovin, Dmitry Yu. Golovin, Ksenia Yu. Vlasova, Maxim M. Veselov, Azizbek D. Usvaliev, Alexander V. Kabanov, Natalia L. Klyachko
Summary: The review discusses the theoretical, experimental and toxicological aspects of using functionalized magnetic nanoparticles (MNPs) activated by a low frequency non-heating alternating magnetic field (AMF) for biomedical applications. It highlights nano-magnetomechanical activation (NMMA) as a potential platform for therapeutic methods involving targeted delivery, controlled release of therapeutic agents, and selective molecular nanoscale impacts without drug involvement.
Article
Mathematics, Applied
Pavel Kuzhir, Maxime Raboisson-Michel, Jordy Queiros Campos, Gregory Verger-Dubois, Andrey Yu Zubarev
Summary: This paper introduces a unified mathematical model for the kinetics of magnetic nanoparticles phase condensation under homogeneous permanent or alternating magnetic field. The model presents relationships among aggregate growth rate, size distribution, and average volume, applicable to various magnetic field conditions.
MATHEMATICAL METHODS IN THE APPLIED SCIENCES
(2021)
Article
Biochemistry & Molecular Biology
Luis Pereira, Frederico Castelo Ferreira, Filipa Pires, Carla A. M. Portugal
Summary: This work explores the unique features of magnetic-responsive hydrogels to obtain liposomal hydrogel delivery platforms capable of precise magnetically modulated drug release. Magnetic-responsive liposomal hydrogel delivery systems were prepared by encapsulation of DPPC:FA liposomes into magnetic-responsive gelatin membranes. The FA release mechanisms and kinetics from these liposomal gelatin systems were studied and compared to conventional drug delivery systems to assess their potential in longer-term therapeutics.
Article
Nanoscience & Nanotechnology
Yuan-li Wang, Tong-hui Yang, Song Yue, Hang-bo Zheng, Xiao-pan Liu, Peng-zhao Gao, Hang Qin, Han-ning Xiao
Summary: Composition optimization, structural design, and introduction of external magnetic fields can significantly improve the OER performance of a catalyst. NiFe2O4@(Ni, Fe)S/P materials with a heterogeneous core-shell structure were prepared and exhibited enhanced activity and reduced charge transfer resistance. The addition of an alternating magnetic field further decreased the overpotential and improved the OER performance by enriching reactive ions on the electrode surface and influencing charge transfer and diffusion processes.
ACS APPLIED MATERIALS & INTERFACES
(2023)
Article
Chemistry, Multidisciplinary
Lihong Zhang, Chaowen Chen, Jia Zhang, Bin Liu, Guopeng Teng, Junjun Wang, Xin Zhang, Dongqing Cai, Zhengyan Wu
Summary: In this study, an alternating magnetic field-responsive controlled-release system, MRCIN, was developed for the efficient release of IM. By manipulating the frequency and voltage, it demonstrated excellent controlled-release performance and showed potential for sustainable pest control and green agriculture. This system also exhibited good biocompatibility and recyclability, providing a promising approach to reduce environmental pollution.
ACS SUSTAINABLE CHEMISTRY & ENGINEERING
(2021)
Article
Thermodynamics
Z. G. Zheng, X. L. Chen, J. Y. Liu, H. Y. Wang, S. Da, Z. G. Qiu, D. C. Zeng
Summary: In a magnetic refrigerator, the strength and frequency of the magnetic field greatly affect the magnetocaloric effects of materials. In this study, direct measurements were conducted to investigate the relationship between the magnetocaloric effect and the alternating frequency of the magnetic field for Gadolinium. The results showed that the temperature change of Gadolinium decreased from 1.5 K to 0.7 K as the field alternating frequency increased from 2.2 Hz to 9 Hz under a magnetic field of 0.72 T. Additionally, a theoretical model was established to examine the effects of different influencing factors on the temperature change of Gadolinium, providing guidance for selecting the best magnetocaloric materials and developing magnetic refrigerators.
INTERNATIONAL JOURNAL OF REFRIGERATION
(2023)
Article
Chemistry, Physical
Ina Erceg, Atida Selmani, Andreja Gajovic, Ivana Panzic, Damir Ivekovic, Fabio Faraguna, Suzana Segota, Marija Curlin, Vida Strasser, Jasminka Kontrec, Damir Kralj, Nadica Maltar Strmecki, Maja Dutour Sikiric
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2020)
Article
Chemistry, Multidisciplinary
Mirela Rozic, Nikola Segota, Marina Vukoje, Rahela Kulcar, Suzana Segota
APPLIED SCIENCES-BASEL
(2020)
Article
Biochemistry & Molecular Biology
Darikha Kudasova, Botagoz Mutaliyeva, Kristina Vlahovicek-Kahlina, Slaven Juric, Marijan Marijan, Svetlana V. Khalus, Alexander V. Prosyanik, Suzana Segota, Nikola Spanic, Marko Vincekovic
Summary: The newly synthesized Cu(II) complex has significant effects on plant growth depending on the culture type and concentration, particularly in promoting the development of corn roots. The use of chitosan-coated microcapsules allows effective delivery of Cu(II) complex to plants, with Fickian diffusion being the main release mechanism.
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2021)
Article
Biochemistry & Molecular Biology
Anja Sadzak, Ignacija Vlasic, Zoran Kiralj, Marijana Batarelo, Nada Orsolic, Maja Jazvinscak Jembrek, Ines Kusen, Suzana Segota
Summary: The study revealed that myricetin exacerbated the toxicity of copper, leading to cell death, and induced various cell death mechanisms such as apoptosis and necrosis. These findings highlight the potential adverse effects of myricetin in the context of copper-related neurodegeneration.
Article
Chemistry, Multidisciplinary
Ina Erceg, Atida Selmani, Andreja Gajovic, Borna Radatovic, Suzana Segota, Marija Curlin, Vida Strasser, Jasminka Kontrec, Damir Kralj, Nadica Maltar-Strmecki, Rinea Barbir, Barbara Pem, Ivana Vinkovic Vrcek, Maja Dutour Sikiric
Summary: The study tested two methods for synthesizing CaPs composites and performed various analyses and evaluations on the obtained materials. The results show that control of the CaP phase formed can be achieved by fine-tuning conditions in the precipitation system, leading to composites with good blood compatibility and antioxidant properties.
Article
Geochemistry & Geophysics
Ina Erceg, Jasminka Kontrec, Vida Strasser, Atida Selmani, Darija Domazet Jurasin, Marija Curlin, Branka Njegic Dzakula, Nives Matijakovic Mlinaric, Suzana Segota, Daniel M. Lyons, Damir Kralj, Maja Dutour Sikiric
Summary: Liposomes have the potential to be a versatile tool for synthesizing advanced materials such as calcium phosphates and calcium carbonates. This study investigated the influence of different charged liposomes on the formation of these materials and found that negatively charged liposomes had the most prominent effect, forming (nano) shell structures in both cases. This research provides strategies for fine-tuning the precipitation process of calcium phosphates and calcium carbonates, which could be valuable for the production of novel materials.
Article
Biochemistry & Molecular Biology
Marko Vincekovi, Suzana Segota, Slaven Juri, Maria Harja, Gabrijel Ondrasek
Summary: This study investigates the encapsulation of biomass fly ash into calcium alginate microspheres and characterizes its physicochemical properties. The results show that the loading of biomass fly ash alters the crosslinking density and molecular interactions of the microspheres, leading to different release rates of its main components (K, Ca, and Mg). This novel microsphere formulation demonstrates significant potential for the prolonged and safe delivery of nutrients to crops.
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2022)
Article
Biochemistry & Molecular Biology
Lucija Mandic, Marija Matkovic, Goran Baranovic, Suzana Segota
Summary: The release kinetics of quercetin from magnetic nanoparticles can be controlled by stationary and alternating magnetic fields, affecting the distribution of quercetin between nanoparticles and the suspension within the membrane. This understanding can be applied to the release of insoluble flavonoids in aqueous suspensions.
Article
Biochemistry & Molecular Biology
Anja Sadzak, Zlatko Brkljaca, Mihael Erakovic, Manfred Kriechbaum, Nadica Maltar-Strmecki, Jan Pribyl, Suzana Segota
Summary: Products of lipid peroxidation can cause detrimental structural changes in cell membranes, including the formation of water pores. However, the influence of dicarboxylic acids on cell membranes is still not well understood. This study focused on dodecanedioic acid (DDA) as a model product and investigated the impact of different flavonoids on DDA aggregation. The results showed that the addition of flavonoids disrupted the formation of DDA aggregates, leading to a decrease in DDA concentration in cell membranes.
JOURNAL OF LIPID RESEARCH
(2023)
Article
Medicine, Research & Experimental
Anja Sadzak, Mihael Erakovic, Suzana Segota
Summary: Flavonoids, natural antioxidants, have potential in photodynamic cancer treatment but degrade at physiological pH. Studying their oxidation kinetics helps understand degradation and analyze release data. Incorporating flavonoids into magnetic nanocarriers can mitigate degradation and enhance solubility, with release controlled by magnetic fields. A new analytical approach combining ALS and multilinear regression is presented for considering flavonoid autoxidation in release studies.
MOLECULAR PHARMACEUTICS
(2023)
Article
Multidisciplinary Sciences
Milorad Zjali, Mislav Mustapi, Zvonko Glumac, Ivan Proloscic, Senka Blazeti, Ana Vukovi, Mostafa Masud, Motasim Billah, Aslam Khan, Suzana Segota, Md Shahriar Al Hossain, Marija Heffer
Summary: Iron nanoparticles are used for targeted drug delivery, but they may have toxic effects. A AC/DC magnetic syringe was developed for injecting, stimulating drug release, and safely removing the nanoparticles. Methods for nanoparticles' drug release kinetics and cytotoxicity testing in vitro were optimized.
