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1. Development of a magnetic hybrid filter to reduce PM10 in a subway platform

Author:
Son, Youn-Suk; Oh, Yong-Hwan; Choi, In-Young; Dinh, Trieu-Vuong; Chung, Sang-Gwi; Lee, Jai-hyo; Park, Duckshin; Kim, Jo-Chun
Source:
Journal of hazardous materials 2019 v.368 pp. 197-203
ISSN:
0304-3894
Subject:
magnetism,   etc   ; filters; particulates;     Show all 3 Subjects
Abstract:
... This study investigated the reduction of particulate matter (PM) in a subway platform using self-developed magnetic hybrid filters (magnet-magnet (MM) and magnet-cascade (MC) filter). The magnetic hybrid filter systems were installed and operated in Jegi-dong subway station (J station) platform. The removal efficiency of PM10 (particular matter with aerodynamic diameter less than 10 μm) was evalua ...
DOI:
10.1016/j.jhazmat.2019.01.045

2. Effects of piezoelectric-phase orientations on magnetoelectric coefficient in AlN–FeCoSiB multiferroic composites

Author:
Liu, Meirui; Jian, Gang
Source:
Journal of materials science 2019 v.54 no.8 pp. 6374-6380
ISSN:
0022-2461
Subject:
magnetism,   etc   ; ceramics; crystals;     Show all 3 Subjects
Abstract:
... In this study, orientation dependences of ᵖs₁₁′, ᵖs₁₂′, ᵖε₃₃′ and d₃₁′ for piezoelectric phase were investigated along arbitrary directions using relative experimental data and original matrices for AlN with point group of 6mm. Then, effects of various orientations of piezoelectric phase on magnetoelectric coefficient of AlN–FeCoSiB laminated multiferroic composites were studied. It was found that ...
DOI:
10.1007/s10853-019-03327-9

3. The Influence of Gravity on Contact Angle and Circumference of Sessile and Pendant Drops has a Crucial Historic Aspect

Author:
Gulec, Semih; Yadav, Sakshi; Das, Ratul; Bhave, Vaibhav; Tadmor, Rafael
Source:
Langmuir 2019 v.35 no.16 pp. 5435-5441
ISSN:
1520-5827
Subject:
magnetism,   etc   ; contact angle; gravity;     Show all 3 Subjects
Abstract:
... Normally, pendant drops adapt contact angles that are closer to 90° than their sessile analogues. This is due to the drop’s weight that pulls the pendant drop and straightens its contact angles. In this paper, we show a case in which the opposite happens: sessile drops that adapt contact angles that are closer to 90° than their pendant analogues. To achieve these peculiar states, one needs to incr ...
DOI:
10.1021/acs.langmuir.8b03861

4. Toxic effects of magnetic nanoparticles on normal cells and organs

Author:
Jiang, Ziyu; Shan, Kuizhong; Song, Jie; Liu, Jingbing; Rajendran, Suresh; Pugazhendhi, Arivalagan; Jacob, Joe Antony; Chen, Baoan
Source:
Life sciences 2019 v.220 pp. 156-161
ISSN:
0024-3205
Subject:
magnetism,   etc   ; drugs; nanoparticles; toxicity;     Show all 4 Subjects
Abstract:
... Magnetic nanoparticles (MNPs) are promising candidates for drug delivery and treatment of various disorders. Toxicity evaluation is a critical point in the development of nanoformulations and therefore, draws considerable attention. Formulations involving individual or combinatorial nanoparticle suspensions might be used for targeted delivery and treatment. This might be a evaluated further for sa ...
DOI:
10.1016/j.lfs.2019.01.056

5. Ruderman–Kittel–Kasuya–Yosida Mechanism for Magnetic Ordering of Sparse Fe Adatoms on Graphene

Author:
Zhu, Y.; Pan, Y. F.; Yang, Z. Q.; Wei, X. Y.; Hu, J.; Feng, Y. P.; Zhang, H.; Wu, R. Q.
Source:
Journal of physical chemistry 2019 v.123 no.7 pp. 4441-4445
ISSN:
1932-7455
Subject:
magnetism,   etc   ; adsorption; graphene; iron;     Show all 4 Subjects
Abstract:
... First-principles calculations are carried out to elucidate the mechanism of the exchange interaction among magnetic adatoms on graphene, using Fe–graphene as an example. By fitting the calculated spin wave spectra of different sparse adsorption configurations to the Heisenberg Hamiltonian, the exchange parameters between different neighbors (Jᵢ) were found to follow a single Ruderman–Kittel–Kasuya ...
DOI:
10.1021/acs.jpcc.8b11803

6. Correction: Analysis on the energetics, magnetism and electronic properties in a 45° ZnO grain boundary doped with Gd

Author:
Sasikala Devi, Assa Aravindh; Roqan, Iman S.
Source:
RSC advances 2019 v.9 no.5 pp. 2380
ISSN:
2046-2069
Subject:
magnetism,   etc   ; gadolinium; zinc oxide;     Show all 3 Subjects
Abstract:
... Correction for ‘Analysis on the energetics, magnetism and electronic properties in a 45° ZnO grain boundary doped with Gd’ by Assa Aravindh Sasikala Devi et al., RSC Adv., 2018, 8, 13850–13856. ...
DOI:
10.1039/c9ra90001b

7. Chemistry and Quantum Mechanics in 2019: Give Us Insight and Numbers

Author:
Neese, Frank; Atanasov, Mihail; Bistoni, Giovanni; Maganas, Dimitrios; Ye, Shengfa
Source:
Journal of the American Chemical Society 2019 v.141 no.7 pp. 2814-2824
ISSN:
1520-5126
Subject:
magnetism,   etc   ; chemistry; quantum mechanics;     Show all 3 Subjects
Abstract:
... This Perspective revisits Charles Coulson’s famous statement from 1959 “give us insight not numbers” in which he pointed out that accurate computations and chemical understanding often do not go hand in hand. We argue that today, accurate wave function based first-principle calculations can be performed on large molecular systems, while tools are available to interpret the results of these calcula ...
DOI:
10.1021/jacs.8b13313

8. Is Earth special?

Author:
Waltham, David
Source:
Earth-science reviews 2019 v.192 pp. 445-470
ISSN:
0012-8252
Subject:
magnetism,   etc   ; evolution; mathematical models; oceans;     Show all 4 Subjects
Abstract:
... Peculiar conditions may be required for the origin of life and/or the evolution of complex organisms. Hence, Earth attributes—such as plate-tectonics, oceans, magnetism and a large moon—may be necessary preconditions, for our own existence, that are rare in the general population of planets. The unknown magnitude of this observational bias undermines understanding of our planet. However the discov ...
DOI:
10.1016/j.earscirev.2019.02.008

9. Active structuring of colloids through field-driven self-assembly

Author:
Liljeström, Ville; Chen, Chen; Dommersnes, Paul; Fossum, Jon Otto; Gröschel, André H.
Source:
Current opinion in colloid & interface science 2019 v.40 pp. 25-41
ISSN:
1359-0294
Subject:
magnetism,   etc   ; anisotropy; colloids; isotropy; microparticles;     Show all 5 Subjects
Abstract:
... In recent years self-assembly has become progressively more “active”, i.e. the focus of research gradually has shifted towards field-manipulation of matter in order to form temporary states rather than creating static architectures. The desire for time-programmed control of materials certainly originates from the unmatched complexity of natural systems that orchestrate multiple components across l ...
DOI:
10.1016/j.cocis.2018.10.008

10. Multistate magnetoresistance in zigzag-edge trigonal graphene magnetic junctions

Author:
He, Guangmeng; Qiu, Shuai; Cui, Yangjun; Yu, Cuiju; Miao, Yuanyuan; Zhang, Guangping; Ren, Junfeng; Wang, Chuan-Kui; Hu, Guichao
Source:
Journal of materials science 2019 v.54 no.7 pp. 5551-5560
ISSN:
0022-2461
Subject:
magnetism,   etc   ; density functional theory; graphene;     Show all 3 Subjects
Abstract:
... Using density functional theory combined with nonequilibrium Green’s function method, spin-dependent transport through a zigzag-edge trigonal graphene molecule coupled with two ferromagnets was investigated. The results reveal that due to the intrinsic magnetism of the central graphene nanoflake, four spin configurations of the device can be achieved. By calculating the current–voltage characteris ...
DOI:
10.1007/s10853-018-03246-1

11. Single-component molecular conductor [Pt(dmdt)₂]—a three-dimensional ambient-pressure molecular Dirac electron system

Author:
Zhou, Biao; Ishibashi, Shoji; Ishii, Tatsuru; Sekine, Takahiko; Takehara, Ryosuke; Miyagawa, Kazuya; Kanoda, Kazushi; Nishibori, Eiji; Kobayashi, Akiko
Source:
Chemical communications 2019 v.55 no.23 pp. 3327-3330
ISSN:
1364-548X
Subject:
magnetism,   etc   ; chemical compounds; chemical reactions;     Show all 3 Subjects
Abstract:
... The single-component molecular conductor [Pt(dmdt)₂] is a sought-after ambient-pressure molecular Dirac electron system, which exhibits a high temperature-insensitive conductivity and temperature-dependent magnetic susceptibility nearly vanishing below 120 K. First-principles DFT calculations reveal that Dirac cones emerge along the a* direction, and form Dirac nodal lines. ...
DOI:
10.1039/c9cc00218a

12. Correction: A cobalt arylphosphonate MOF – superior stability, sorption and magnetism

Author:
Zorlu, Yunus; Erbahar, Doğan; Çetinkaya, Ahmet; Bulut, Aysun; Erkal, Turan S.; Yazaydin, A. Ozgur; Beckmann, Jens; Yücesan, Gündoğ
Source:
Chemical communications 2019 v.55 no.21 pp. 3168
ISSN:
1364-548X
Subject:
magnetism,   etc   ; chemical reactions; cobalt; sorption;     Show all 4 Subjects
Abstract:
... Correction for ‘A cobalt arylphosphonate MOF – superior stability, sorption and magnetism’ by Yunus Zorlu et al., Chem. Commun., 2019, DOI: 10.1039/c8cc09655d. ...
DOI:
10.1039/c9cc90089f

13. Rapid Faraday Rotation on ε-Iron Oxide Magnetic Nanoparticles by Visible and Terahertz Pulsed Light

Author:
Ohkoshi, Shin-ichi; Imoto, Kenta; Namai, Asuka; Yoshikiyo, Marie; Miyashita, Seiji; Qiu, Hongsong; Kimoto, Shodai; Kato, Kosaku; Nakajima, Makoto
Source:
Journal of the American Chemical Society 2019 v.141 no.4 pp. 1775-1780
ISSN:
1520-5126
Subject:
magnetism,   etc   ; chemistry; irradiation; models; nanoparticles;     Show all 5 Subjects
Abstract:
... Light- or electromagnetic wave-responsive magnetism is an attractive issue in spin chemistry and optical materials science. Herein we show the magnetization reversal induced by visible-light pulsed laser and the ultrafast dynamic magnetooptical effect caused by terahertz (THz) pulsed laser irradiation onto chemically synthesized magnetic films based on gallium–titanium–cobalt-substituted ε-Fe₂O₃ ( ...
DOI:
10.1021/jacs.8b12910

14. Anisotropic Magnetoresistance in NiFe-Based Polymer Spin Valves

Author:
Ding, Shuaishuai; Tian, Yuan; Dong, Huanli; Zhu, Daoben; Hu, Wenping
Source:
ACS applied materials & interfaces 2019 v.11 no.12 pp. 11654-11659
ISSN:
1944-8252
Subject:
magnetism,   etc   ; anisotropy; electrodes; polymers; semiconductors;     Show all 5 Subjects
Abstract:
... Precise evaluation of magnetoresistance (MR) with the identified transport mechanism is one of the key points in organic spin-valve (OSV) devices. To investigate the origin of the spin-valve-like signal in polymer spin valve with a vertical structure of NiFe/P3HT/AlOₓ/Co, the magnetic response measurements in the rotated magnetization direction were established in different well-designed device co ...
DOI:
10.1021/acsami.8b20659

15. Multifunctional broadband microwave absorption of flexible graphene composites

Author:
Zhang, Kai-Lun; Zhang, Jun-Ying; Hou, Zhi-Ling; Bi, Song; Zhao, Quan-Liang
Source:
Carbon 2019 v.141 pp. 608-617
ISSN:
0008-6223
Subject:
magnetism,   etc   ; absorption; graphene; polypropylenes; robots;     Show all 5 Subjects
Abstract:
... Stable broadband microwave absorption is widely interested for their irreplaceable role in stealth technology for multiband microwave communication and detection. In this paper, a flexible broadband microwave absorber with self-recoverability was fabricated by self-assembling graphene sheets into polypropylene 3D framework. The as-fabricated absorber has a full-band absorption (more than 90%) in t ...
DOI:
10.1016/j.carbon.2018.10.024

16. Realizing robust half-metallic transport with chemically modified graphene nanoribbons

Author:
Song, Lingling; Jin, Shaopeng; Jiang, Peng; Hao, Hua; Zheng, Xiaohong; Zhang, Lei
Source:
Carbon 2019 v.141 pp. 676-684
ISSN:
0008-6223
Subject:
magnetism,   etc   ; energy; ferrimagnetic materials; graphene;     Show all 4 Subjects
Abstract:
... Although many chemical modification schemes for achieving half-metallicity in zigzag-edged graphene nanoribbons (ZGNRs) have been proposed, practically, half-metallic transport is hardly observable with them due to the resulting negligible energy difference of the anti-ferromagnetic (AF) and ferromagnetic (F) configurations between the two edges. We propose a scheme to achieve robust half-metallic ...
DOI:
10.1016/j.carbon.2018.10.015

17. Modeling of particle capture in high gradient magnetic separation: A review

Author:
Zheng, Xiayu; Xue, Zixing; Wang, Yuhua; Zhu, Guangli; Lu, Dongfang; Li, Xudong
Source:
Powder technology 2019 v.352 pp. 159-169
ISSN:
0032-5910
Subject:
magnetism,   etc   ; magnetic separation; models; powders; slurries;     Show all 5 Subjects
Abstract:
... High gradient magnetic separation (HGMS) is effective in concentrating or removing weakly magnetic particles from slurry and has been applied in many scientific and industrial fields. The basic principles behind HGMS are of great importance to appreciate the effectiveness of HGMS and have received considerable research attention. Modeling of particle capture by matrices provides very intuitive und ...
DOI:
10.1016/j.powtec.2019.04.048

18. Nanoscale integration of oxides and metals in bulk 3D composites: leveraging SrFe12O19/Co interfaces for magnetic exchange coupling

Author:
Volodchenkov, A. D.; Kodera, Y.; Garay, J. E.
Source:
Journal of materials science 2019 v.54 no.11 pp. 8276-8288
ISSN:
0022-2461
Subject:
magnetism,   etc   ; ferrimagnetic materials; nanocomposites; oxides; powders; strontium;     Show all 6 Subjects
Abstract:
... The integration of different material classes (e.g, oxides and metals) with nanoscale dimensions in large 3D materials remains a fundamental challenge in nanocomposite fabrication. The incentive is that some of the most interesting properties occur at nanoscale interfaces, while the challenge arises from the difficulty in densifying the materials without deleterious reaction at the interface. Here ...
DOI:
10.1007/s10853-019-03323-z

19. Reconstructed Fermi surface in graphene on Ir(111) by Gd-Ir surface alloying

Author:
Klimovskikh, I.I.; Krivenkov, M.; Varykhalov, A.; Estyunin, D.; Shikin, A.M.
Source:
Carbon 2019 v.147 pp. 182-186
ISSN:
0008-6223
Subject:
magnetism,   etc   ; alloys; electronics; gadolinium; graphene; spectroscopy; topology;     Show all 7 Subjects
Abstract:
... Graphene electronics covers a number of unique effects and the most intriguing ones are based on its interaction with other materials. Contact of graphene with the lattice-mismatched substrate clones the Dirac cone and gives rise to Hofstadter spectrum, while contact with the heavy/magnetic atoms realizes topological insulator phase. Here we study the electronic structure of graphene on Ir(111) wi ...
DOI:
10.1016/j.carbon.2019.02.037

20. Application and development of superparamagnetic nanoparticles in sample pretreatment and immunochromatographic assay

Author:
Huang, Zhen; Hu, Song; Xiong, Yonghua; Wei, Hua; Xu, Hengyi; Duan, Hongwei; Lai, Weihua
Source:
Trends in analytical chemistry 2019 v.114 pp. 151-170
ISSN:
0165-9936
Subject:
magnetism,   etc   ; immunoaffinity chromatography; immunomagnetic separation; nanoparticles; screening;     Show all 5 Subjects
Abstract:
... Superparamagnetic nanoparticles (SMNPs) have been widely used in immunochromatographic assay (ICA) platform and achieved outstanding effects for overcoming the disadvantages of low sensitivity and poor matrix tolerance of ICA. The review presents the improvement of sensitivity and matrix tolerance of ICA due to immunomagnetic separation (IMS). Moreover, some novel magnetic separation technology, d ...
DOI:
10.1016/j.trac.2019.03.004