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1. Experimental evidence for ‘buckle, ruck and tuck’ in neutron irradiated graphite

Author:
Johns, Steve; He, Lingfeng; Kane, Joshua J.; Windes, William E.; Ubic, Rick; Karthik, Chinnathambi
Source:
Carbon 2020 v.159 pp. 119-121
ISSN:
0008-6223
Subject:
irradiation,   etc   ; graphene; models; neutrons;     Show all 4 Subjects
Abstract:
... The current mainstream theory for radiation-induced dimensional change of nuclear graphite is based on the notion that interstitially displaced carbon atoms will coalesce into dislocation loops (i.e., additional basal planes). This standard atomic-displacement model has been challenged by theories based on first principles calculations. The so-called ‘ruck and tuck’ of basal planes has been propos ...
DOI:
10.1016/j.carbon.2019.12.028

2. Strong Coupling of Carbon Quantum Dots in Plasmonic Nanocavities

Author:
Katzen, Joel M.; Tserkezis, Christos; Cai, Qiran; Li, Lu Hua; Kim, Jun Min; Lee, Gaehang; Yi, Gi-Ra; Hendren, William R.; Santos, Elton J. G.; Bowman, Robert M.; Huang, Fumin
Source:
ACS applied materials & interfaces 2020 v.12 no.17 pp. 19866-19873
ISSN:
1944-8252
Subject:
irradiation,   etc   ; carbon quantum dots; graphene;     Show all 3 Subjects
Abstract:
... Confining light in extremely small cavities is crucial in nanophotonics, central to many applications. Employing a unique nanoparticle-on-mirror plasmonic structure and using a graphene film as a spacer, we create nanoscale cavities with volumes of only a few tens of cubic nanometers. The ultracompact cavity produces extremely strong optical near-fields, which facilitate the formation of single ca ...
DOI:
10.1021/acsami.0c03312

3. Focused characteristics and effects of light reflected from spherical lipid membrane of giant unilamellar vesicles

Author:
Qiao, Hai; Wei, Zixin; Wang, Yiting; Hu, Na; Sun, Sineng; Bai, Jin; Fang, Liaoqiong; Wang, Zhibiao
Source:
Colloids and surfaces 2020 v.189 pp. 110828
ISSN:
0927-7765
Subject:
irradiation,   etc   ; encapsulation; fluorescence; lipids; plasmids; ultraviolet radiation;     Show all 6 Subjects
Abstract:
... Lipid vesicle is spherical membranous structure with a concave surface on the inside. When a beam of light illuminates a lipid vesicle, the light reflected from the vesicular concave membrane can be focused to have higher intensity and generate enhanced effects. By observing and simulating light reflected from giant unilamellar vesicles (GUVs), the intensity distribution of the light reflected fro ...
DOI:
10.1016/j.colsurfb.2020.110828

4. Thermo-mechanical solar receiver design and validation for a micro gas-turbine based solar dish system

Author:
Aichmayer, Lukas; Garrido, Jorge; Laumert, Björn
Source:
Energy 2020 v.196 pp. 116929
ISSN:
0360-5442
Subject:
irradiation,   etc   ; model validation; models; solar collectors; temperature;     Show all 5 Subjects
Abstract:
... This work presents the comprehensive development of a solar receiver for the integration into a micro gas-turbine solar dish system. Special focus is placed on the thermo-mechanical design to ensure the structural integrity of all receiver components for a wide range of operating conditions. For the development, a 3-dimensional coupled multi-physics model is established and is validated using expe ...
DOI:
10.1016/j.energy.2020.116929

5. Novel metal-organic super-hydrophobic surface fabricated by nanosecond laser irradiation in solution

Author:
Yang, Zhen; Liu, Xianping; Tian, Yanling
Source:
Colloids and surfaces 2020 v.587 pp. 124343
ISSN:
0927-7757
Subject:
irradiation,   etc   ; aluminum; corrosion; hydrophobicity; liquids; moieties; nanoparticles;     Show all 7 Subjects
Abstract:
... This work aims to propose a newly-emerged method using laser irradiation in liquid for the fabrication of metal-organic highly hydrophobic aluminum surface with excellent corrosion resistant performance. The corrosion results revealed that the laser-induced porous structure with ovoid-like particles, and simultaneously integration of low-free-energy functional groups (-CH₂, -CF₂ and -CF₃) contribu ...
DOI:
10.1016/j.colsurfa.2019.124343

6. Black BiVO₄: size tailored synthesis, rich oxygen vacancies, and sodium storage performance

Author:
Xu, Xiaosa; Xu, Youxun; Xu, Fei; Jiang, Guangshen; Jian, Jie; Yu, Huiwu; Zhang, Enming; Shchukin, Dmitry; Kaskel, Stefan; Wang, Hongqiang
Source:
Journal of materials chemistry A 2020 v.8 no.4 pp. 1636-1645
ISSN:
2050-7496
Subject:
irradiation,   etc   ; anodes; batteries; nanocrystals; nanoparticles; oxygen; sodium;     Show all 7 Subjects
Abstract:
... BiVO₄ nanoparticles with tailored sizes and rich oxygen vacancies were facilely synthesized via pulsed laser irradiation of colloidal nanoparticles (PLICN). As anode materials for Na-ion batteries, the revolutionized sodium storage process found in sub-10 nm BiVO₄ nanocrystals results in outstanding properties including extraordinary rate capability and remarkable cycling stability. ...
DOI:
10.1039/c9ta13021g

7. Develop a high energy proton beam position monitor using linear contact image sensor

Author:
Hsiao, Tung-Yuan; Niu, Huan; Chen, Tzung-Yuang; Chen, Chien-Hsu
Source:
MethodsX 2020 v.7 pp. 100773
ISSN:
2215-0161
Subject:
irradiation,   etc   ; cameras; energy; quality control; therapeutics;     Show all 5 Subjects
Abstract:
... A compact beam-position monitor was constructed using a linear contact image sensor attached to a plastic scintillator and tested using a 230 MeV proton beam. The results indicate that the beam position can be obtained in real-time, and the beam position with a precision of up to 0.03 mm. The compactness and high precision of the device hold considerable potential for it to be used as a beam-posit ...
DOI:
10.1016/j.mex.2019.100773
PubMed:
32140438
PubMed Central:
PMC7046811

8. All-carbon THz components based on laser-treated diamond

Author:
Amoruso, S.; Andreone, A.; Bellucci, A.; Koral, C.; Girolami, M.; Mastellone, M.; Mou, S.; Orlando, S.; Papari, G.P.; Paparo, D.; Polini, R.; Rubano, A.; Santagata, A.; Serpente, V.; Valentini, V.; Trucchi, D.M.
Source:
Carbon 2020 v.163 pp. 197-201
ISSN:
0008-6223
Subject:
irradiation,   etc   ; Raman spectroscopy; anisotropy; scanning electron microscopy; transmittance;     Show all 5 Subjects
Abstract:
... We report on fs laser structuring and graphitization of diamond and experimental characterization of its THz response. A full characterization of graphitized, conductive layer generated by laser irradiation is carried out by performing scanning-electron microscopy, Raman spectroscopy and electrical measurements. The transmittance of the laser textured diamond samples, both with the graphitic overl ...
DOI:
10.1016/j.carbon.2020.03.023

9. Fast and simple synthesis of triangular silver nanoparticles under the assistance of light

Author:
Nguyen, Thi Hong Nhung; Nguyen, Thanh Dat; Cao, Minh Thi; Pham, Van Viet
Source:
Colloids and surfaces 2020 v.594 pp. 124659
ISSN:
0927-7757
Subject:
irradiation,   etc   ; nanosilver; pH; photoreduction; sodium borohydride; surface plasmon resonance;     Show all 6 Subjects
Abstract:
... Herein, the fast and simple formation of triangular silver nanoparticles (T-Ag NPs) was systematically studied by a chemical reduction process with the assistance of light irradiation. The effects of sodium borohydride (NaBH₄) concentration, pH medium, and light source irradiation are investigated via the localized surface plasmon resonances (LSPRs) detection of silver nanoparticles (Ag NPs). Resu ...
DOI:
10.1016/j.colsurfa.2020.124659

10. Formation and decomposition of Poly(l-lactic acid) charge-transfer complex with iodine: A new molecular switch

Author:
Cataldo, Franco
Source:
Polymer degradation and stability 2020 v.176 pp. 109155
ISSN:
0141-3910
Subject:
irradiation,   etc   ; chloroform; cold; iodine; light; models; polylactic acid; storage time;     Show all 8 Subjects
Abstract:
... PLLA forms a charge-transfer (CT) complex with iodine in trichloromethane solution with Keq = 24.8 ± 1.8 M⁻¹, much higher than the Keq = 0.75 M⁻¹ measured with the model compound ethyl lactate-iodine in CHCl₃. The higher equilibrium constant of the PLLA-I₂ complex suggests a special polymer-iodine interaction which was confirmed by optical rotatory dispersion (ORD) measurements, taking advantage o ...
DOI:
10.1016/j.polymdegradstab.2020.109155

11. Search for tritium in air in a room equipped with 14 MeV neutron generator with tritiated targets

Author:
Miecznik, M.; Mietelski, J.W.; Wójcik-Gargula, A.; Brudecki, K.; Dankowski, J.
Source:
Journal of environmental radioactivity 2020 v.217 pp. 106218
ISSN:
0265-931X
Subject:
irradiation,   etc   ; air; deuterium; neutrons; oxygen; radioactivity; tritium; vapors;     Show all 8 Subjects
Abstract:
... Eight documented tritiated targets were stored, as well as some very old targets with unknown activity, in a room equipped with an ING-114 14 MeV fast neutron generator. When the neutron generator was running, the tritiated targets were irradiated with a deuterium beam. The aim of this work is to determine the tritium content in the room's atmosphere, as well as the radiation exposure of workers i ...
DOI:
10.1016/j.jenvrad.2020.106218

12. Visible-Light-Mediated Enantioselective Photoreactions of 3-Alkylquinolones with 4-O-Tethered Alkenes and Allenes

Author:
Li, Xinyao; Jandl, Christian; Bach, Thorsten
Source:
Organic letters 2020 v.22 no.9 pp. 3618-3622
ISSN:
1523-7052
Subject:
irradiation,   etc   ; allene; catalysts; enantioselectivity; energy; light; moieties; photochemical reactions;     Show all 8 Subjects
Abstract:
... The title compounds undergo intramolecular [2 + 2] photocycloaddition reactions when irradiated with visible light in the presence of a chiral sensitizer. Up to four defined stereogenic centers are formed in a single step (14 examples with a tethered alkene, 6 examples with an allene, 72–99% yield, 81–99% ee) at catalyst loadings as low as 0.5 mol %. The alkyl group in the 3-position is crucial fo ...
DOI:
10.1021/acs.orglett.0c01065

13. Magnetostrictive friction of graphene sheets embedded carbon film

Author:
Yang, Lei; Qi, Kai; Diao, Dongfeng; Wang, Pengfei; Xue, Peidong
Source:
Carbon 2020 v.159 pp. 617-624
ISSN:
0008-6223
Subject:
irradiation,   etc   ; atomic force microscopy; friction; graphene; magnetic fields; silicon;     Show all 6 Subjects
Abstract:
... We report a magnetostrictive friction phenomenon in atomic force microscopy (AFM) silicon probe sliding against graphene sheets embedded carbon (GSEC) film under external magnetic field. A special electromagnet device was designed on AFM to generate controllable magnetic field for the magnetostrictive friction measurements. GSEC films possessing self-magnetism were prepared by electron irradiation ...
DOI:
10.1016/j.carbon.2020.01.005

14. Organic–Inorganic Hybrids Composed of Keggin-Type [PMo₁₀V₂O₄₀]⁵– Anions and Porphyrins: The Synthesis, Characterization, and Influence of Porphyrin Substituents on Optical Nonlinearities

Author:
Khurum Shehzad, Farooq; Iqbal, Arshad; Zhou, Yunshan; Zhang, Lijuan; Wang, Ting; Ren, Xiaoyu
Source:
Journal of physical chemistry 2020 v.124 no.17 pp. 9442-9450
ISSN:
1932-7455
Subject:
irradiation,   etc   ; anions; cations; electrostatic interactions; moieties; optical properties; porphyrins; prototypes;     Show all 8 Subjects
Abstract:
... In order to understand the influence of porphyrin substituents on the nonlinear optical properties of organic–inorganic hybrids composed of an anionic metal–oxygen cluster and a porphyrin cation, porphyrins bearing different functional groups (4-pyridyl, 4-hydroxyphenyl, and 3,4-dimethoxyphenyl) were chosen as prototypes to react with the well-known Keggin-type polyanion α-[PMo₁₀V₂O₄₀]⁵–, which ac ...
DOI:
10.1021/acs.jpcc.0c00861

15. Generation and properties of aqu/nC60: the combined effects of humic acid, sunlight, and agitation intensity

Author:
Li, Xueyao; Ding, Guanghui; Zhang, Jing; Wang, Yingying; Li, Wanran; Wang, Chunchao; Li, Ruijuan; Yang, Zhanning
Source:
Environmental science and pollution research international 2020 v.27 no.11 pp. 12527-12538
ISSN:
0944-1344
Subject:
irradiation,   etc   ; agitation; humic acids; hydrodynamics; screening; solar radiation;     Show all 6 Subjects
Abstract:
... Once released into natural water, the environmental behavior and fate of C₆₀ could inevitably been affected by humic acid (HA), sunlight, and hydrodynamic conditions. However, the combined effects of these factors are not so clear. Therefore, in the present study, effects of HA, sunlight, and agitation intensity on generation and properties of aqu/nC₆₀ were investigated. The results indicated that ...
DOI:
10.1007/s11356-020-07811-7

16. Light-Excited Antibiotics for Potentiating Bacterial Killing via Reactive Oxygen Species Generation

Author:
Jiang, Qi; E, Fangjie; Tian, Jingxiao; Yang, Jiangtao; Zhang, Jiangyan; Cheng, Yongqiang
Source:
ACS applied materials & interfaces 2020 v.12 no.14 pp. 16150-16158
ISSN:
1944-8252
Subject:
irradiation,   etc   ; antibiotics; bacteria; bacterial infections; neoplasms; photochemotherapy; reactive oxygen species;     Show all 7 Subjects
Abstract:
... The irrational or excessive use of antibiotics causes the emergence of bacterial resistance, making antibiotics less effective or ineffective. As the number of resistant antibiotics increases, it is crucial to develop new strategies and innovative approaches to potentiate the efficacy of existing antibiotics. In this paper, we report that some existing antibiotics can produce reactive oxygen speci ...
DOI:
10.1021/acsami.0c02647

17. Evolving Crystal Morphology of Potassium Chloride Controlled by Optical Trapping

Author:
Cheng, An-Chieh; Masuhara, Hiroshi; Sugiyama, Teruki
Source:
Journal of physical chemistry 2020 v.124 no.12 pp. 6913-6921
ISSN:
1932-7455
Subject:
irradiation,   etc   ; crystallization; crystals; near infrared radiation; potassium chloride; probability;     Show all 6 Subjects
Abstract:
... Dynamic morphology evolution of potassium chloride (KCl) crystals was demonstrated by surface optical trapping with a focused continuous-wave near-infrared laser. Optical trapping at an air/solution interface triggered the crystallization, and then, the dynamic change in crystal morphology was observed in real time. We observed three different crystal morphologies of needle, rectangle, and cubic a ...
DOI:
10.1021/acs.jpcc.9b11651

18. Araneose Ti3+ self-doping TiO2/SiO2 nanowires membrane for removal of aqueous MB under visible light irradiation

Author:
Gao, Zhao; Yang, Hanpei; Mao, Jingtao; Kang, Li; Zhang, Ruichen; Chai, Siqi; Wu, Junming; Li, Wei
Source:
Environmental science and pollution research international 2020 v.27 no.9 pp. 9748-9759
ISSN:
0944-1344
Subject:
irradiation,   etc   ; hydrophilicity; light; methylene blue; nanowires; silica; titanium; titanium dioxide;     Show all 8 Subjects
Abstract:
... Araneose Ti³⁺ self-doped TiO₂/SiO₂ nanowires (RTiO₂/SiO₂) were prepared and anchored onto a polyethersulfone (PES) membrane. Careful characterizations and measurements indicated a covalent grafting of SiO₂ onto reduced TiO₂ (RTiO₂) through Ti–O–Si linkages, acquiring uniformed RTiO₂/SiO₂ nanowires of almost complete anatase and benign hydrophilicity. The RTiO₂/SiO₂-based PES membrane showed a sign ...
DOI:
10.1007/s11356-019-07567-9

19. Influence of helium ion irradiation on the structure and strength of diamond

Author:
Chen, Ming; Best, James P.; Shorubalko, Ivan; Michler, Johann; Spolenak, Ralph; Wheeler, Jeffrey M.
Source:
Carbon 2020 v.158 pp. 337-345
ISSN:
0008-6223
Subject:
irradiation,   etc   ; diamonds; electric potential difference; helium; ions; microscopes; optical properties;     Show all 7 Subjects
Abstract:
... Microfabrication of synthetic single crystal diamond using accelerated helium ions beams has significant potential for functional applications, such as high precision optical devices, through tailoring of the optical properties via diamond graphitization. The use of helium ion microscopes (HIM) with nano-scaled focused ion beam spot sizes also allows for precision nano-patterning of the diamond su ...
DOI:
10.1016/j.carbon.2019.10.078

20. Ion beam engineered graphene oxide membranes for mono-/di-valent metal ions separation

Author:
Wei, Yibin; Pastuovic, Zeljko; Shen, Chao; Murphy, Timothy; Gore, Damian B.
Source:
Carbon 2020 v.158 pp. 598-606
ISSN:
0008-6223
Subject:
irradiation,   etc   ; desalination; energy; graphene oxide; metal ions; nanopores; permeability; potassium;     Show all 8 Subjects
Abstract:
... Graphene oxide (GO) membranes with precisely controlled nanopores are promising for selectively ionic separation. Here, an ion beam was used to efficiently and simply post-modify GO membranes, creating nanopores in a controllable manner. We compared the influence of GO membrane thickness and ion fluence on the GO structure and the consequent mono-/di-valent metal ion separation performance. Experi ...
DOI:
10.1016/j.carbon.2019.11.031