Photodynamic therapy laser system

Shu, Xiaoqin; Lin, Qing; Wang, Rui; Shu, Chao; Wang, Jianhua

doi:10.1117/12.843354

Cited by 6 publications

(9 citation statements)

References 0 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…An additional peak was observed at 288.6 eV, which may correspond to the carbon atoms in carboxylic groups (-COO) at the surface of MWNTs due to functionalization. [15][16][17] BET surface area measurements BET surface area measurements of MWNTs and the Fe 3 O 4 -MWNT nanocomposite are shown in Fig. 4.…”

Section: X-ray Diffractogram Analysismentioning

confidence: 99%

“…The FTIR study of f-MWNTs confirms the defect sites at the surface of MWNTs and the presence of >C]C (1635 cm À1 >C]O (1022 cm ), ¼CH 2 (2852, 2925 cm À1 ) and -OH (3437 cm À1 ) functional groups at the surface of the MWNTs, while a peak at 1405 cm À1 may be due to the carboxylic group (-COO) attached to the MWNTs. 16,19 These functional groups at the surface of the MWNTs provide anchoring sites for metal and metal oxide nanoparticles. This helps in the decoration of the MWNT surface by Fe 3 O 4 nanoparticles.…”

Section: Fourier Transform Infrared Spectrogram Analysismentioning

confidence: 99%

See 1 more Smart Citation

Nano magnetite decorated multiwalled carbon nanotubes: a robust nanomaterial for enhanced carbon dioxide adsorption

Mishra

Ramaprabhu

2011

Energy Environ. Sci.

131

View full text Add to dashboard Cite

It has long been seen as a demanding task to counteract the raised levels of greenhouse gases including carbon dioxide (CO 2 ). Current worldwide research is focused on the investigation of materials which can capture large amounts of CO 2 through physical or chemical adsorption. The present work focuses on a high pressure CO 2 adsorption study of functionalized MWNTs (f-MWNTs) and a magnetite decorated MWNT nanocomposite. Multiwalled carbon nanotubes (MWNTs) were prepared by a catalytic chemical vapor deposition method followed by purification and functionalization. Magnetite (Fe 3 O 4 ) nanoparticles were decorated over the f-MWNT surface by a chemical method. The functionalized MWNTs and magnetite decorated MWNTs were characterized by electron microscopy, X-ray powder diffraction, Raman spectroscopy and FTIR spectroscopy. The CO 2 adsorption capacity was measured using high pressure Sieverts' apparatus. A large enhancement in the CO 2 adsorption capacity was achieved by decorating magnetite nanoparticles over the MWNT surface.

show abstract

Section: X-ray Diffractogram Analysismentioning

confidence: 99%

Section: Fourier Transform Infrared Spectrogram Analysismentioning

confidence: 99%

Nano magnetite decorated multiwalled carbon nanotubes: a robust nanomaterial for enhanced carbon dioxide adsorption

Mishra

Ramaprabhu

2011

Energy Environ. Sci.

131

View full text Add to dashboard Cite

show abstract

“…Compared with the centrifugation or ltration processes, magnetic separation could be a more efficient and selective method to remove nanomaterials from an aqueous environment. 32,33 Magnetic materials have been extensively explored for various water treatment purposes. [33][34][35][36][37] Due to their residual magnetization, however, commonly used magnetic materials for water treatment have magnetic attraction and could form aggregates even without an external magnetic eld, which could affect their efficient contact with contaminants in water and will deteriorate their performance.…”

Section: Introductionmentioning

confidence: 99%

“…32,33 Magnetic materials have been extensively explored for various water treatment purposes. [33][34][35][36][37] Due to their residual magnetization, however, commonly used magnetic materials for water treatment have magnetic attraction and could form aggregates even without an external magnetic eld, which could affect their efficient contact with contaminants in water and will deteriorate their performance. 38 In our previous work, a magnetically separable, superparamagnetic Pd/Fe 3 O 4 catalyst was synthesized by co-precipitation followed by reduction in pure hydrogen at 453 K, which could effectively reduce NO 3 À to NH 4 + and N 2 by catalytic hydrogenation due to the strong interaction between Pd nanoparticles and the Fe 3 O 4 support.…”

Section: Introductionmentioning

confidence: 99%

Highly efficient catalytic reduction of bromate in water over a quasi-monodisperse, superparamagnetic Pd/Fe3O4 catalyst

Sun

Gao

et al. 2013

J. Mater. Chem. A

View full text Add to dashboard Cite

A novel quasi-monodisperse, superparamagnetic Pd/Fe 3 O 4 catalyst was synthesized for effective catalytic bromate reduction. The catalyst was prepared by dispersing nanoparticles of Pd (weight percent up to 1%) on the surface of superparamagnetic Fe 3 O 4 microspheres with 300-500 nm in diameter and 10-20 nm in grain size. Complete reduction of bromate by this Pd/Fe 3 O 4 catalyst was demonstrated within a short period (<2 h) over a range of pH values, in the presence of a variety of co-existing ions, and after multiple cycles. In addition, the superparamagnetic nature of the catalyst enhanced its good dispersion in water during water treatment when there was no external magnetic field, and its high saturation magnetization allowed an easy magnetic separation from water when an external magnetic field was applied after the water treatment. Thus, it could be easily recycled and reused, further enhancing its application potential.

show abstract

“…It has to be noted that the vibrations of the peaks ascribed to the bonds of ‘metal-oxygen’ are interfering each other, resulting into a small shift in comparison to other reported values in the literature. [15] The broad peak at approximately 1750 cm -1 that can be seen only in the CM-NCubes spectrum can be attributed to the C-N and C=O vibrations of the cell membranes; the same applies for the peaks around 2800 cm -1 , which are attributed to the C-H vibration. The small peak that is observed also around at 2800 cm -1 in NCubes can be probably attributed to an impurity since during the synthetic procedure, no organic compounds are used.…”

Section: Resultsmentioning

confidence: 94%

Cell Membrane‐Coated Magnetic Nanocubes with a Homotypic Targeting Ability Increase Intracellular Temperature due to ROS Scavenging and Act as a Versatile Theranostic System for Glioblastoma Multiforme

Tapeinos

Tomatis

Battaglini

et al. 2019

Adv Healthcare Materials

View full text Add to dashboard Cite

In this study, hybrid nanocubes composed of magnetite (Fe 3 O 4 ) and manganese dioxide (MnO 2 ), coated with U-251 MG cell-derived membranes (CM-NCubes) are synthesized. The CM-NCubes demonstrate a concentration-dependent oxygen generation (up to 15%), and, for the first time in the literature, an intracellular increase of temperature (6 °C) due to the exothermic scavenging reaction of hydrogen peroxide (H 2 O 2 ) is showed. Internalization studies demonstrate that the CM-NCubes are internalized much faster and at a higher extent by the homotypic U-251 MG cell line compared to other cerebral cell lines. The ability of the CM-NCubes to cross an in vitro model of the blood-brain barrier is also assessed. The CM-NCubes show the ability to respond to a static magnet and to accumulate in cells even under flowing conditions. Moreover, it is demonstrated that 500 µg mL −1 of sorafenib-loaded or unloaded CM-NCubes are able to induce cell death by apoptosis in U-251 MG spheroids that are used as a tumor model, after their exposure to an alternating magnetic field (AMF). Finally, it is shown that the combination of sorafenib and AMF induces a higher enzymatic activity of caspase 3 and caspase 9, probably due to an increment in reactive oxygen species by means of hyperthermia. Cell Membrane NanocubesThe ORCID identification number(s) for the author(s) of this article can be found under https://doi.

show abstract

Photodynamic therapy laser system

Cited by 6 publications

References 0 publications

Nano magnetite decorated multiwalled carbon nanotubes: a robust nanomaterial for enhanced carbon dioxide adsorption

Nano magnetite decorated multiwalled carbon nanotubes: a robust nanomaterial for enhanced carbon dioxide adsorption

Highly efficient catalytic reduction of bromate in water over a quasi-monodisperse, superparamagnetic Pd/Fe3O4 catalyst

Cell Membrane‐Coated Magnetic Nanocubes with a Homotypic Targeting Ability Increase Intracellular Temperature due to ROS Scavenging and Act as a Versatile Theranostic System for Glioblastoma Multiforme

Contact Info

Product

Resources

About