Carbon Nanotubes

Herlem, Guillaume; Picaud, Fabien; Giŗardet, C.; Micheau, Olivier

doi:10.1016/b978-0-12-814033-8.00016-3

Cited by 29 publications

(12 citation statements)

References 332 publications

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“…The reason for the decrease in IFT at this concentration can be attributed to the increase in conductivity the presence of active ions (charge effect) in the environment [ 70 ]. To prove this effect, according to Figure 11 which shows the conductivity of the prepared nanofluids, one can see that conductivity of the nanofluids increases linearly with an increasie in concentration [ 71 , 72 ]. However, at concentration of 500 ppm, the graph shows an anomalous behavior where conductivity increases (increased net charge effect of the ions and the related electrical double-layer interactions in the environment) at this concentration [ 73 , 74 , 75 , 76 ].…”

Section: Resultsmentioning

confidence: 97%

Synthesis, Characterization, and Assessment of a CeO2@Nanoclay Nanocomposite for Enhanced Oil Recovery

et al. 2020

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In this paper, synthesis and characterization of a novel CeO2/nanoclay nanocomposite (NC) and its effects on IFT reduction and wettability alteration is reported in the literature for the first time. The NC was characterized using scanning electron microscopy (SEM), X-ray diffraction (XRD), Fourier-transform infrared spectroscopy (FTIR), thermogravimetric analysis (TGA), energy-dispersive X-ray spectroscopy (EDS), and EDS MAP. The surface morphology, crystalline phases, and functional groups of the novel NC were investigated. Nanofluids with different concentrations of 100, 250, 500, 1000, 1500, and 2000 ppm were prepared and used as dispersants in porous media. The stability, pH, conductivity, IFT, and wettability alternation characteristics of the prepared nanofluids were examined to find out the optimum concentration for the selected carbonate and sandstone reservoir rocks. Conductivity and zeta potential measurements showed that a nanofluid with concentration of 500 ppm can reduce the IFT from 35 mN/m to 17 mN/m (48.5% reduction) and alter the contact angle of the tested carbonate and sandstone reservoir rock samples from 139° to 53° (38% improvement in wettability alteration) and 123° to 90° (27% improvement in wettability alteration), respectively. A cubic fluorite structure was identified for CeO2 using the standard XRD data. FESEM revealed that the surface morphology of the NC has a layer sheet morphology of CeO2/SiO2 nanocomposite and the particle sizes are approximately 20 to 26 nm. TGA analysis results shows that the novel NC has a high stability at 90 °C which is a typical upper bound temperature in petroleum reservoirs. Zeta potential peaks at concentration of 500 ppm which is a sign of stabilty of the nanofluid. The results of this study can be used in design of optimum yet effective EOR schemes for both carbobate and sandstone petroleum reservoirs.

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Section: Resultsmentioning

confidence: 97%

Synthesis, Characterization, and Assessment of a CeO2@Nanoclay Nanocomposite for Enhanced Oil Recovery

et al. 2020

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“…They show excellent strength, thermal, and conductivity properties. In cancer therapy, these NPs have been used for thermal ablation therapy and, with their tubular shape, for intratumoral delivery of drug and gene diagnostic agents (Herlem, Picaud, Girardet, & Micheau, ; Zanganeh et al, , , ). Multiwalled carbon nanotubes carrying oxaliplatin were functionalized with cell penetrating peptide TAT and biotin to enhance BBB penetration and brain‐targeting selectivity in an orthotopic brain glioma model (You et al, ).…”

Section: Carbon‐based Nanoparticlesmentioning

confidence: 99%

Immunoengineering in glioblastoma imaging and therapy

Zanganeh

Georgala

Corbo

et al. 2019

WIREs Nanomed Nanobiotechnol

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Patients diagnosed with glioblastoma have poor prognosis. Conventional treatment strategies such as surgery, chemotherapy, and radiation therapy demonstrated limited clinical success and have considerable side effects on healthy tissues. A central challenge in treating brain tumors is the poor permeability of the blood–brain barrier (BBB) to therapeutics. Recently, various methods based on immunotherapy and nanotechnology have demonstrated potential in addressing these obstacles by enabling precise targeting of brain tumors to minimize adverse effects, while increasing targeted drug delivery across the BBB. In addition to treating the tumors, these approaches may be used in conjunction with imaging modalities, such as magnetic resonance imaging and positron emission tomography to enhance the prognosis procedures. This review aims to provide mechanistic understanding of immune system regulation in the central nervous system and the benefits of nanoparticles in the prognosis of brain tumors. This article is characterized under: Diagnostic Tools > in vivo Nanodiagnostics and Imaging Nanotechnology Approaches to Biology > Cells at the Nanoscale Nanotechnology Approaches to Biology > Nanoscale Systems in Biology

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“…However, compared to the research on the growth of CNTs (Fig. 2(b)), 86,87 limited literature was available on BNNTs. This is primarily attributed to the considerable difficulty in growing BNNTs despite their exceptional properties.…”

Section: Growth Of Bnnts: Overviewmentioning

confidence: 99%