Sonochemical Synthesis of Small Boron Oxide Nanoparticles

Ramachandran, Roshini; Jung, Dahee; Bernier, Nicholas A.; Logan, Jessica K.; Waddington, Mary A.; Spokoyny, Alexander M.

doi:10.1021/acs.inorgchem.8b01189

Cited by 24 publications

(21 citation statements)

References 50 publications

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“…Recently, hybrid materials based on oxide nanoparticles [ 1 , 2 ], especially magnetite (iron(II,III) oxide; Fe 3 O 4 ) nanoparticles, gained significant attention as starting materials for the synthesis of tools dedicated to chemical analysis, adsorbents, supports for the delivery of various biocompounds, or catalysts, owing to their various beneficial physicochemical features. Namely, magnetite nanoparticles might be obtained using a wide range of easily accessible synthetic procedures (co-precipitation, thermal decomposition, hydrothermal method, etc.…”

Section: Introductionmentioning

confidence: 99%

Modification of Magnetite Nanoparticles with Triazine-Based Dendrons and Their Application as Drug-Transporting Systems

Pawlaczyk

Schroeder

2021

IJMS

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The following research aims at the synthesis of magnetite nanoparticles functionalized with triazine-based dendrons and the application of the obtained materials as effective sorptive materials dedicated to acidic bioactive compounds. The adopted synthetic approach involved: (1) the synthesis of nanosized Fe3O4 particles via classic co-precipitation method, (2) the introduction of amine groups on their surface leading to materials’ precursor, and (3) the final synthesis of branched triazine-based dendrons on the support surface by an iterative reaction between cyanuric chloride (CC) and piperazine (p) or diethylenetriamine (DETA) via nucleophilic substitution. The characterized materials were tested for their adsorptive properties towards folic acid, 18β–glycyrrhetinic acid, and vancomycin, showing high adsorption capacities varying in the ranges of 53.33–401.61, 75.82–223.71, and 68.17–132.45 mg g–1, respectively. The formed material–drug complexes were also characterized for the drug-delivery potential, performed as in vitro release studies at pH 2.0 and 7.4, which mimics the physiological conditions. The release profiles showed that the proposed materials are able to deliver up to 95.2% of the drugs within 48 h, which makes them efficient candidates for further biomedical applications.

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Section: Introductionmentioning

confidence: 99%

Modification of Magnetite Nanoparticles with Triazine-Based Dendrons and Their Application as Drug-Transporting Systems

Pawlaczyk

Schroeder

2021

IJMS

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“…Acoustic cavitation has already proven to be useful for controlling particle morphologies, achieving high surface areas and inherent porosity in metal oxide materials. [74][75][76][77][78] This approach has also afforded carbon nanocomposite materials with high dispersity in various media. [79][80][81] Despite these advances, however, the technique has not been applied towards metal oxide additives in GPEs for DSSCs.…”

Section: Introductionmentioning

confidence: 99%

Enhancing the Efficiency of a Dye-Sensitized Solar Cell Based on a Metal Oxide Nanocomposite Gel Polymer Electrolyte

Saidi

Omar

Numan

et al. 2019

ACS Appl. Mater. Interfaces

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In order to overcome the critical limitations of liquid electrolytebased dye-sensitized solar cells, quasi-solid-state electrolytes have been explored as a means of addressing long-term device stability, albeit with comparatively low ionic conductivities and device performances. Although metal oxide additives have been shown to augment ionic conductivity, their propensity to aggregate into large crystalline particles upon high-heat annealing hinders their full potential in quasi-solid-state electrolytes. In this work, sonochemical processing has been successfully applied to generate fine Co 3 O 4 nanoparticles that are highly dispersible in a PAN:P(VP-co-VAc) polymer blended gel electrolyte, even after calcination. An optimized nanocomposite gel polymer electrolyte containing 3 wt% sonicated Co 3 O 4 nanoparticles (PVVA-3) delivers the highest ionic conductivity (4.62 x 10-3 S cm-1) of the series. This property is accompanied by a 51% enhancement in the apparent diffusion coefficient of triiodide versus both unmodified and unsonicated electrolyte samples. The dye-sensitized solar cell based on PVVA-3 displays a power conversion efficiency of 6.46% under AM1.5G, 100 mW cm-2. By identifying the optimal loading of sonochemically processed nanoparticles, we are able to generate a homogenous extended particle network that effectively mobilizes redox active species through a highly amorphous host matrix. This effect is manifested in a selective 51% enhancement in photocurrent density (J SC = 16.2 mA cm-2) and a lowered barrier to N719 dye regeneration (R CT = 193 Ω) versus an unmodified solar cell. To the best of our knowledge, this work represents the highest known efficiency to-date for dye-sensitized solar cells based on a sonicated Co 3 O 4-modified gel polymer electrolyte. Sonochemical processing, when applied in this manner, has the potential to make meaningful contributions towards the ongoing mission to achieve the widespread exploitation of stable and low-cost dye-sensitized solar cells.

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“…Obtaining aseptic conditions for several commercial products is the main factor associated with public health problems. In recent years, several researchers have attempted to discover and develop new strategies against organic pollutants [1,2,3]. The cosmetics, leather, paper, plastics, and textile industries, among others, produce many pollutants, including colour contaminants, that are carcinogenic to mammals due to their use of dyestuffs and chemical materials [4,5].…”

Section: Introductionmentioning

confidence: 99%

Preparation and Characterization of Magnetic Fe3O4/CdWO4 and Fe3O4/CdWO4/PrVO4 Nanoparticles and Investigation of Their Photocatalytic and Anticancer Properties on PANC1 Cells

et al. 2019

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Fe3O4/CdWO4 and Fe3O4/CdWO4/PrVO4 magnetic nanoparticles were prepared at different molar ratios of PrVO4 to previous layers (Fe3O4/CdWO4) via the co-precipitation method assisted by a sonochemical procedure, in order to investigate the photocatalytic performance of these systems and their cytotoxicity properties. The physico-chemical properties of these magnetic nanoparticles were determined via several experimental methods: X-ray diffraction, energy dispersive X-ray spectroscopy, Fourier transformation infrared spectroscopy and ultraviolet-visible diffuse reflection spectroscopy, using a vibrating sample magnetometer and a scanning electron microscope. The average sizes of these nanoparticles were found to be in the range of 60–100 nm. The photocatalytic efficiency of the prepared nanostructures was measured by methylene blue degradation under visible light (assisted by H2O2). The magnetic nanosystem with a 1:2:1 ratio of three oxide components showed the best performance by the degradation of ca. 70% after 120 min of exposure to visible light irradiation. Afterwards, this sample was used for the photodegradation of methyl orange, methyl violet, fenitrothion, and rhodamine-B pollutants. Finally, the mechanism of the photocatalytic reaction was examined by releasing •OH under UV light in a system including terephthalic acid, as well as O2−, OH, and hole scavengers. Additionally, the cytotoxicity of each synthesized sample was assessed using a 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide assay against the human cell line PANC1 (cancer), and its IC50 was approximately 125 mg/L.

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Sonochemical Synthesis of Small Boron Oxide Nanoparticles

Cited by 24 publications

References 50 publications

Modification of Magnetite Nanoparticles with Triazine-Based Dendrons and Their Application as Drug-Transporting Systems

Modification of Magnetite Nanoparticles with Triazine-Based Dendrons and Their Application as Drug-Transporting Systems

Enhancing the Efficiency of a Dye-Sensitized Solar Cell Based on a Metal Oxide Nanocomposite Gel Polymer Electrolyte

Preparation and Characterization of Magnetic Fe3O4/CdWO4 and Fe3O4/CdWO4/PrVO4 Nanoparticles and Investigation of Their Photocatalytic and Anticancer Properties on PANC1 Cells

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