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5. Evidenced-based approaches to support the development of endocrine-mediated adverse outcome pathways:challenges and opportunities

Author

Audouze, K. (Karine), Zgheib, E. (Elias), Abass, K. (Khaled), Baig, A. H. (Asma H.), Forner-Piquer, I. (Isabel), Holbech, H. (Henrik), Knapen, D. (Dries), Leonards, P. E. (Pim E. G.), Lupu, D. I. (Diana I.), Palaniswamy, S. (Saranya), Rautio, A. (Arja), Sapounidou, M. (Maria), and Martin, O. V. (Olwenn V.)

Subjects
machine learning, evidence-based methods, systematic (literature) review, dverse outcome pathways, endocrine disruption
Published
2021

12. Transparent and Electrically Conductive Carbon Nanotube-Polymer Nanocomposite Materials for Electrostatic Charge Dissipation

Author

Dervishi, E, Biris, A. S, Biris, A. R, Lupu, D, Trigwell, S, Miller, D. W, Schmitt, T, Buzatu, D. A, and Wilkes, J. G

Subjects
Composite Materials
Abstract

In recent years, nanocomposite materials have been extensively studied because of their superior electrical, magnetic, and optical properties and large number of possible applications that range from nano-electronics, specialty coatings, electromagnetic shielding, and drug delivery. The aim of the present work is to study the electrical and optical properties of carbon nanotube(CNT)-polymer nanocomposite materials for electrostatic charge dissipation. Single and multi-wall carbon nanotubes were grown by catalytic chemical vapor deposition (CCVD) on metal/metal oxide catalytic systems using acetylene or other hydrocarbon feedstocks. After the purification process, in which amorphous carbon and non-carbon impurities were removed, the nanotubes were functionalized with carboxylic acid groups in order to achieve a good dispersion in water and various other solvents. The carbon nanostructures were analyzed, both before and after functionalization by several analytical techniques, including microscopy, Raman spectroscopy, and X-Ray photoelectron spectroscopy. Solvent dispersed nanotubes were mixed (1 to 7 wt %) into acrylic polymers by sonication and allowed to dry into 25 micron thick films. The electrical and optical properties of the films were analyzed as a function of the nanotubes' concentration. A reduction in electrical resistivity, up to six orders of magnitude, was measured as the nanotubes' concentration in the polymeric films increased, while optical transparency remained 85 % or higher relative to acrylic films without nanotubes.

Published
2006

13. THE PREDICTIVITY OF RISK SCORES IN UPPER GASTROINTESTINAL BLEEDINGS.

Author

CONDREA, E. G., LUPU, D., and NEDELCU, L.

Subjects
*DISEASE risk factors, *GASTROINTESTINAL hemorrhage, *EMERGENCY physicians, *BLOOD transfusion, *HOSPITAL emergency services
Abstract

Upper gastrointestinal bleedings are still a challenge for gastroenterologists as well as for physicians in the emergency departments. They are one of the most frequent causes for admission in the world. As a result, numerous risk assessment scores were described, some including accessible variables, some others including the need for upper gastrointestinal endoscopy to quantify the risk of mortality, the implementation of emergency endoscopy, the risk of rebleeding, and the necessity of blood transfusion. [ABSTRACT FROM AUTHOR]

Published
2021
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14. Synthesis of Multiwall Carbon Nanotubes by Inductive Heating CCVD

Author

Biris, A. R, Biris, A. S, Lupu, D, Trigwell, S, Rahman, Z. U, Aldea, N, and Marginean, P

Subjects
Nonmetallic Materials
Abstract

The CCVD syntheses of MWCNTs from acetylene on Fe:Co:CaCO 3 and Fe:Co:CaO were performed using two different methods of heating: outer furnace and inductive heating. The comparative analysis of the MWCNTs obtained by the two methods show that the tubes grown in inductive heating have smaller diameters (5-25 nm), with fewer walls and aspect ratio of the order of hundreds. The ratio of outer to inner diameter (od/id) is ranging between 2 and 2.5. Inductively assisted CCVD is a very attractive method because of the major advantages that it presents, like low energetic consumption, thinner, well crystallized and more uniform tubes.

Published
2005

15. Analysis of Effluent Gases During the CCVD Growth of Multi Wall Carbon Nanotubes from Acetylene

Author

Schmitt, T. C, Biris, A. S, Miller, D. W, Biris, A. R, Lupu, D, Trigwell, S, and Rahman, Z. U

Subjects
Nonmetallic Materials
Abstract

Catalytic chemical vapor deposition was used to grow multi-walled carbon nanotubes on a Fe:Co:CaCO3 catalyst from acetylene. The influent and effluent gases were analyzed by gas chromatography and mass spectrometry at different time intervals during the nanotubes growth process in order to better understand and optimize the overall reaction. A large number of byproducts were identified and it was found that the number and the level for some of the carbon byproducts significantly increased over time. The CaCO3 catalytic support thermally decomposed into CaO and CO2 resulting in a mixture of two catalysts for growing the nanotubes, which were found to have outer diameters belonging to two main groups 8 to 35 nm and 40 to 60 nm, respectively.

Published
2005

39. Graphitic Materials for RF Thermal Ablation of Tumors

Author

Mahmood, Meena, primary, Xu, Y., additional, Li, Z., additional, Dervishi, E., additional, Ali, Nawab, additional, Saini, V., additional, Biris, A. S., additional, Trigwell, S., additional, Zharov, Vladimir P., additional, Biris, Alexandru R., additional, and Lupu, D., additional

Published
2008
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