The Chemotherapeutic Potential of Gold Nanoparticles Against Human Carcinomas: A Review

Tiloke, Charlette; Phulukdaree, Alisa; Chuturgoon, Anil A.

doi:10.1016/b978-0-323-47347-7.00028-8

Cited by 5 publications

(5 citation statements)

References 106 publications

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“…From the calculation results, the crystal size and the average crystal size are 18.85 nm. This crystal size indicates that the synthesized TiO2 is of nanoparticle size because based on the literature the size of nanoparticles is between 1 -100 nm [31]. With this nanoparticle size, TiO2 photocatalyst performance is more optimum because the surface area that interacts is larger.…”

Section: Resultsmentioning

confidence: 86%

Synthesis and Characterization of TiO2-Chitosan Beads and Its Application as A Degradation Agent of Methylene Blue

2023

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Dye waste is an environmental problem that has a negative impact on the ecosystem. One way to overcome this is by chemically degrading dyes using photocatalyst materials. TiO2 is one of the photocatalysts that can be synthesized by utilizing microwave radiation which is transferred directly to the material. This method takes a short amount of time so it can be completed in a very short time. TiO2 powder has the disadvantage that it is difficult to separate from the waste solution. TiO2 can be modified into beads by utilizing chitosan to produce TiO2-chitosan beads (TCB). In this research, the synthesis of TiO2 was carried out using microwave, followed by modification with chitosan to produce TCB and then its application in the degradation of methylene blue dye waste at various pH, concentration and contact time variations. Material characterization was carried out by determining the surface area of the material using Brunauer-Emmet-Teller (BET), band gap energy with UV-Vis Diffuse Reflectance Spectrocopy (UV-Vis DRS), crystal phase with X-Ray Diffraction (XRD), and surface morphology with Scanning Electron Microscope (SEM). The results showed that the synthesized TiO2 has anatase crystalline phase with an average crystal size of 18.85 nm and a bandgap energy of 3.16 eV. The TCB surface morphology indicated the successful impregnation of TiO2 on the chitosan. This study showed that the optimum performance of TCB was at pH 11 within 5 min and kinetic analysis results follows 2nd order. HIGHLIGHTS Methylene blue dye waste pollutes the aquatic environment TiO2 as a photocatalyst can degrade methylene blue Chitosan is an abundant natural polymer which has high adsorption ability TiO2-chitosan beads material was synthesized to facilitate the separation of the material from the liquid after photodegradation process GRAPHICAL ABSTRACT

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Section: Resultsmentioning

confidence: 86%

Synthesis and Characterization of TiO2-Chitosan Beads and Its Application as A Degradation Agent of Methylene Blue

2023

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“…They are applied especially in the field of dietary supplements [52] or drugs [53][54][55][56]. The size of microparticles ranges from 100 nanometres to 1000 µm [57][58][59], and particles with a diameter below 100 nanometres are classified as nanoparticles [60].…”

Section: Cross-linking Of Alginatesmentioning

confidence: 99%

Preparation and Characteristics of Alginate Microparticles for Food, Pharmaceutical and Cosmetic Applications

2022

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Alginates are the most widely used natural polymers in the pharmaceutical, food and cosmetic industries. Usually, they are applied as a thickening, gel-forming and stabilizing agent. Moreover, the alginate-based formulations such as matrices, membranes, nanospheres or microcapsules are often used as delivery systems. Alginate microparticles (AMP) are biocompatible, biodegradable and nontoxic carriers, applied to encapsulate hydrophilic active substances, including probiotics. Here, we report the methods most frequently used for AMP production and encapsulation of different actives. The technological parameters important in the process of AMP preparation, such as alginate concentration, the type and concentration of other reagents (cross-linking agents, oils, emulsifiers and pH regulators), agitation speed or cross-linking time, are reviewed. Furthermore, the advantages and disadvantages of alginate microparticles as delivery systems are discussed, and an overview of the active ingredients enclosed in the alginate carriers are presented.

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“…From these data, it can be proven that the MnO2 synthesized includes nanoparticles. Because material is called a nanoparticle if it has an average particle size of 10-100 nm (Tiloke et al, 2016). Table 6 shows that the difference in pH of the mixture can affect the particle size of MnO2 (Abulizi et al, 2014).…”

Section: Synthesis Of Mno2 As Supercapacitor Electrodes Materials By ...mentioning

confidence: 99%

Synthesis of MnO2 as Supercapacitor Electrodes Material by Green Chemistry Method Through Dehydroxylation of Tangerine Peel (Citrus reticulata) Essential Oil

et al. 2022

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In this era, most technology requires electronic equipment. The performance of electronic equipment may be affected by energy storage components like a supercapacitor, so the development of supercapacitor electrode materials using green chemical methods needs to be pursued. Material with a good specific capacitance is MnO2. Most of the MnO2 synthesis methods are not based on green chemistry, so there is an alternative method. One of them is by utilizing the waste from tangerine peels. This study aimed to synthesize MnO2 through dehydroxylation of tangerine peel essential oil. The steps for conducting this research consisted of isolation of tangerine peel essential oil, analysis of the constituent components of tangerine peel essential oil, synthesis of MnO2 through dehydroxylation of essential oils tangerine peel, and MnO2 characterization. XRD results showed that MnO2 synthesized at pH 11 had the highest percentage of α-MnO2 (97%). This is evidenced by the presence of α-MnO2 diffractogram according to the ICSD No.20227. The SEM results showed that MnO2 had a spherical morphology with a particle diameter of 39.51 nm. α-MnO2 has a larger tunnel structure compared to β- and γ-MnO2, making the charge-discharge process easier so that α-MnO2 has the potential as a supercapacitor electrode material.

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The Chemotherapeutic Potential of Gold Nanoparticles Against Human Carcinomas: A Review

Cited by 5 publications

References 106 publications

Synthesis and Characterization of TiO2-Chitosan Beads and Its Application as A Degradation Agent of Methylene Blue

Synthesis and Characterization of TiO2-Chitosan Beads and Its Application as A Degradation Agent of Methylene Blue

Preparation and Characteristics of Alginate Microparticles for Food, Pharmaceutical and Cosmetic Applications

Synthesis of MnO2 as Supercapacitor Electrodes Material by Green Chemistry Method Through Dehydroxylation of Tangerine Peel (Citrus reticulata) Essential Oil

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