Study of photodynamic activity of Au@SiO2 core-shell nanoparticles in vitro

Meena, K.S.; Dhanalekshmi, K.I.; Jayamoorthy, K.

doi:10.1016/j.msec.2016.03.010

Cited by 20 publications

(6 citation statements)

References 29 publications

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“…Owing to its short life span (~3.5 ms in the aqueous environment) and its failure to diffuse longer distances beyond 100 nm in vivo, the region affected with singlet oxygen is spatially limited to a small volume. PDT is thus considered a comparatively safe, targeted modality of noninvasive therapy (Meena et al, 2016;Dhanalekshmi et al, 2019a;Dhanalekshmi et al, 2022). Currently, PDT treatment requires PS excitation through absorption of one photon.…”

Section: Two-photon Excitation In Pdtmentioning

confidence: 99%

“…Ionic materials are usually rare earth crystals such as lanthanides and actinides that are doped in a suitable crystalline matrix (Kianfar et al, 2020b). One of the common nuclei for biological applications is NaFY4, which has recently been doped with Er3 + / Yb 3+ or TM3 + / Yb 3+ to form micrometersized particles Kianfar et al (2020a).The first report of PDT use with UCNs is the use of NaYF4: Yb 3 + .Er 3+ coated with a thin porous silica layer containing PsMerocyanine-370 and tumor-specific agents attached to its surface (Meena et al, 2016;Dhanalekshmi et al, 2019a;Dhanalekshmi et al, 2022). In subsequent studies, NaYF4 nanocrystals contaminated with Er and Yb elements were coated with polyvinylpyrrolidone (PVP) and polyethylene (PEI = Polyethyleneimine) polymers.…”

Section: Up Conversion Nanoparticlementioning

confidence: 99%

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Photodynamic therapy in cancer treatment: properties and applications in nanoparticles

Younus,

Mahmoud,

Hamza

et al. 2024

Braz. J. Biol.

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Most of the treatment strategies for tumors and other disorders is photodynamic therapy (PDT). For several years, increasing the efficiency of nanostructured treatment devices, including light therapy, has been considered in different treatment methods. Light Dynamics The use of nanomaterial in this method's production and progress. The use of nanoparticles as carriers is a promising accomplishment, since all the criteria for an ideal photodynamic therapy agent can be given with these nanomaterials. The kinds of nanoparticles that have recently been used in photodynamic therapy are mentioned in this article. Latest advancements are being explored in the use of inorganic nanoparticles and biodegradable polymer-based nanomaterial as carriers of photosynthetic agents. Photosynthetic nanoparticles, self-propagating nanoparticles, and conversion nanoparticles are among the successful photodynamic therapy nanoparticles addressed in this report.

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Section: Two-photon Excitation In Pdtmentioning

confidence: 99%

Section: Up Conversion Nanoparticlementioning

confidence: 99%

Photodynamic therapy in cancer treatment: properties and applications in nanoparticles

Younus,

Mahmoud,

Hamza

et al. 2024

Braz. J. Biol.

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“…The study reveals that semiconductor ZrO 2 supported on the Ag nanosurfaces not only prohibited agglomeration of nanoparticles, but also showed superior DNA intercalation and antimicrobial activity than the pristine silver nanoparticles which could have encouraging application as antimicrobial materials for microbicides disinfection in wastewater. Meena et al 216 demonstrated core-shell Au-SiO 2 metal-semiconductor nanoparticles by Stober's synthesis and their result reveals that improved core-shell nanoparticles nanostructure displays that the formation of singlet oxygen. The cell viability of the core-shell nanoparticles in contrast to HeLa cell lines were deliberated by MTT assay technique.…”

Section: Water Disinfection With Core-shell Photocatalystsmentioning

confidence: 99%

Recent advances in the synthesis and application of photocatalytic metal–metal oxide core–shell nanoparticles for environmental remediation and their recycling process

2016

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“…Ultimately, they proved to be beneficial in several applications in areas like surface engineering, drug delivery, analytical chemistry, bio encapsulation, Nano composite as well as in electronic, magnetic, optical, and mechanical devices [1][2][3][4][5][6][7][8][9][10][11][12][13][14].…”

Section: Introductionmentioning

confidence: 99%

Study of the Nanocomposite Mo2C(1-x)-TiC(x)-SWCNTs by Field Actived Sparck Plasma Sintering Process

Noudem

Mouyane

Bernard

et al. 2020

JAN

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Nanocomposites are worn resistant materials used in cutting tool applications. The materials are composed of ultrafine powder hard phase grains surrounded by a tough binder phase carbon nanotubes (Mo2C)1-x–(TiC)x (2≤x≤4)//1Wt% SWCNTs. Composite bicarbide Mo2C-TiC was rapidly synthesised and simultaneously consolidated by field activated sintering technique (spark plasma sintering) at which the extensive volume expansion occurred as a function of the volumic fraction from 20 to 40 vol.% of TiC powders and 1 Wt.% of SWCNTs was reinforcement of the NCMC’s. The sintered powder mixture was examined by XRD patterns, the morphology of the obtained phase was observed by SEM and the phase compositions in different regions were analyzed by EDX. The composites were processed using Field Activated Sintering Technique, spark plasma sintering (SPS) at temperatures in the range of 1700-1800°C with addicting of SWCNTs. The effects of SWCNTs addition on phases morphology, microstructure hardness and fracture toughness of the nanocomposite were investigated. The best product contained 1.0 Wt% SWCNTs from (Mo2C)1-x–(TiC)x , x= 0.2 which was sintered at 1700°C, 70 MPa for 10 min, M0.8T0.2/ 1 Wt% SWCNTs exhibit a better density, highest hardness and good ductility. Relative densification was achieved 99.5 % from the theoretical and good mechanical properties like hardness and fracture toughness (KIC=5.6 Mpa m1/2) are improved. The results were confirmed using Raman scattering resonant spectroscopy.

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Study of photodynamic activity of Au@SiO2 core-shell nanoparticles in vitro

Cited by 20 publications

References 29 publications

Photodynamic therapy in cancer treatment: properties and applications in nanoparticles

Photodynamic therapy in cancer treatment: properties and applications in nanoparticles

Recent advances in the synthesis and application of photocatalytic metal–metal oxide core–shell nanoparticles for environmental remediation and their recycling process

Study of the Nanocomposite Mo2C(1-x)-TiC(x)-SWCNTs by Field Actived Sparck Plasma Sintering Process

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