Efficient removal of Congo red using curcumin conjugated zinc oxide nanoparticles as new adsorbent complex

Arab, Celine; Kurdi, Riham El; Patra, Digambara

doi:10.1016/j.chemosphere.2021.130158

Cited by 44 publications

(16 citation statements)

References 31 publications

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“…HR-SEM of pristine and nanonized curcumin showed irregular micron-sized structures and spherical nanoparticles, respectively ( Figure S1B,C ). In addition, pristine curcumin particles (1.2 and 1.3 μm) showed a crystalline structure with characteristic peaks that appeared at diffraction angles of 2θ equal to 7.88°, 8.90°, 12.25°, 14.58°, 17.36° and 19.49° ( Figure S1D ), in good agreement with the literature [68]. Upon nanonization, all the characteristic diffraction peaks of crystalline curcumin disappeared, indicating its amorphization ( Figure S1D ).…”

Section: Resultssupporting

confidence: 91%

An experimental and theoretical approach to understand the interaction between particles and mucosal tissues

Sverdlov

Cohen

Sosnik

2022

Preprint

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Nanonization of poorly water-soluble drugs has shown great potential in improving their oral bioavailability by enhancing the dissolution rate and saturation solubility. Moreover, due to particle size reduction and larger surface area, the number of contact points with the gastrointestinal mucus favors adhesion. Similar phenomena could be anticipated when nano-pollutants come into direct contact with mucosal tissues. However, the fundamental features that govern the interaction of particles with mucus have not been investigated in a systematic and rational way before. In this work, we synthesize mucin hydrogels of different pore sizes with rheological properties that closely mimic the properties of freshly extracted porcine mucin. By using fluorescent pure curcumin particles, we characterize the effect of particle size (hydrodynamic diameter of 200 nm, and 1.2 and 1.3 μm), concentration (18, 35, and 71 μg mL−1), and hydrogel crosslinking density (which is directly related to the stiffness and governs the average pore size) on the diffusion-driven particle penetration in vitro. Next, we derive a phenomenological model that describes the physics behind the diffusion-derived penetration of particles into the mucin network and considers the contributions of the particle size, the particle concentration, and the crosslinking density of the mucin hydrogel. Finally, we challenge our experimental-theoretical approach by preliminarily assessing the oral pharmacokinetics of an anti-cancer model drug, namely dasatinib, in pristine and nanonized forms and two clinically relevant doses in rats. For of a dose of 10 mg kg−1, drug nanonization leads to a significant ~8- and ~21-fold increase of the drug oral bioavailability and half-life, respectively, with respect to the unprocessed micron-sized drug. When the drug dose of pure drug nanoparticles (which is directly related to the local concentration of the drug in the gastrointestinal tract) was increased to 15 mg mL−1, the oral bioavailability increased though not significantly, suggesting the saturation of the penetration sites in the mucus, as demonstrated by the in vitro model. Our overall results reveal the potential of this experimental-theoretical approach, shed light on the interaction of particulate matter and mucosal tissues, and pave the way for the development of tools that enable a more rational design of nano-drug delivery systems for mucosal administration and the assessment of risk factors related to the exposure of mucosal tissues to nano-pollutants.

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Section: Resultssupporting

confidence: 91%

An experimental and theoretical approach to understand the interaction between particles and mucosal tissues

Sverdlov

Cohen

Sosnik

2022

Preprint

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“…[ 6 ] The dye Congo red (CR) is a benzidine‐based anionic diazo dye which has complex aromatic structure that makes it stable and non‐biodegradable. [ 7 ] The biotransformation of CR could potentially develop carcinogenic benzidine and amine groups which are carcinogenic in nature. [ 8 ] CR removal from contaminated water faces various challenges because of its high water solubility, persistent nature, and complex chemical structure.…”

Section: Introductionmentioning

confidence: 99%

One‐Pot Electrochemical Synthesis of Citric Acid Functionalized Iron Oxide Magnetic Nanoparticles for Congo Red Adsorption

Pawar

Kumar

Sharma

et al. 2022

Part & Part Syst Charact

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The organic dye pollutants originate from release of effluents from different industries such as printing, photographic, textile, organic dye manufacturing, paper-pulp, plastic, tannery, paint, and leather industries. [3] The accumulation of dyes in the water bodies negatively affects the marine life and human health due to their noxious and mutagenic effects. [4] Organic dyes like synthetic azo dyes which account for 60-70% of dyes consumption have detrimental potential to decline aquatic oxygen and hamper photosynthetic processes when released in water sources without treatment. [5] Furthermore, azo dyes also bioaccumulate in humans initiating harmful respiratory and neurological health effects. [6] The dye Congo red (CR) is a benzidine-based anionic diazo dye which has complex aromatic structure that makes it stable and non-biodegradable. [7] The biotransformation of CR could potentially develop carcinogenic benzidine and amine groups which are carcinogenic in nature. [8] CR removal from contaminated water faces various challenges because of its high water solubility, persistent nature, and complex chemical structure. Several biological, chemical and physical techniques have been established to treat CR containing wastewater such as membrane separation, photolysis and photocatalytic degradation, electrochemical processes, coagulation, adsorption, ozonation, ion exchange, ultrafiltration, oxidation, electrolysis and biodegradation. [9] Among several methods reported for the removal of water contaminants, adsorption is one of the widely used, well-established and convenient technique owing to its high efficiency, ease of operation, minimum energy requirements, lack of secondary pollution, low cost and reusability. [10] Adsorption is a physicochemical technique that includes accumulation of adsorbate on the adsorbent surface. [11] Multiple categories of nano-adsorbents like metal/metal oxides, fly ash, clays, activated carbon, carbon nanotubes, graphene/graphene oxide, zeolites, biochar, polymer composites, and metal-organic frameworks were reported over the years for withdrawal of CR from polluted water. [12] However, each of the adsorbent has its own drawbacks such as high cost, difficulty to reuse, and low surface area. [13] On that account, development of sustainable and efficient adsorbents for decolorization of dye wastewater is of great importance in environment protection. Azo dyes, likeCongo red (CR), are persistent contaminants that cause detrimental consequences on living organisms in various habitats. In the present study, a novel and facile one-pot citric acid functionalized iron oxide magnetic nanoparticles (Fe 3 O 4 @CA NPs) through an electrochemical method are synthesized and characterized for adsorbing CR dye present in an aqueous solution is reported. The influence of various factors on the adsorption of CR dye, namely pH of the CR solution, Fe 3 O 4 @CA NPs concentration, initial CR dye concentration, contact time, temperature, and agitation speed, are examined. The adsorption isotherms and...

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“…Therefore, pre-treatment of such water is very important. Many techniques have been used for this purpose, in which an adsorption process using nanoscopic material (NMs) has proved to be the most useful [4]. The use of NMs is an integrated approach.…”

Section: Introductionmentioning

confidence: 99%

Facile Synthesis of Cu-Zn Binary Oxide Coupled Cadmium Tungstate (Cu-ZnBO-Cp-CT) with Enhanced Performance of Dye Adsorption

Fatima

Alwan

Siddiqui

et al. 2021

Water

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This study reports the synthesis of copper–zinc binary oxide coupled cadmium tungstate through a simple bio-precipitation method followed by calcination at 600 °C and its adsorption application. The characterization analysis reveals that the prepared composite has low particles size (nano-range), high porosity, and functional groups on the surface. The calcination of sample at 600 °C causes some essential function groups to disappear on the surface. Prepared composite was found to be effective adsorptive material to treat Congo red dye in aqueous solution. 2.5 g L−1 dose of adsorbent could remove more than 99% Congo red dye from 10 mg L−1 solution and more than 80% Congo red dye from 60 mg L−1 aqueous solution. The maximum adsorption capacity of present adsorbent was calculated to be 19.6 mg Congo red per gram of adsorbent. Isotherms analysis suggested a physio-chemical adsorption process. Thermodynamic analysis revealed a exothermic and feasible adsorption process. Adsorption rate was well explained by pseudo second order kinetics. The rate determining step was intra-particle diffusion evaluated from the Weber-Morris plot. To assess the adsorption performance of present adsorbent for Congo red dye the partition coefficient and adsorption equilibrium capacity were compared with other adsorbents. The partition coefficient and adsorption equilibrium values for 10 mg L−1 aqueous solution were found to be approximately 83.3 mg g−1 µM−1 and 4.0 mg g−1 at 30 °C and 7.0 pH using 2.5 g L−1 adsorbent. The value of partition coefficient was found to be higher than previous reported zinc oxide coupled cadmium tungstate having partition coefficient = as 21.4 mg g−1 µM−1 at 30 °C and 7.0 pH using 2.0 g L−1 adsorbent. These results suggested that present adsorption technology is efficient for wastewater treatment.

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Efficient removal of Congo red using curcumin conjugated zinc oxide nanoparticles as new adsorbent complex

Cited by 44 publications

References 31 publications

An experimental and theoretical approach to understand the interaction between particles and mucosal tissues

An experimental and theoretical approach to understand the interaction between particles and mucosal tissues

One‐Pot Electrochemical Synthesis of Citric Acid Functionalized Iron Oxide Magnetic Nanoparticles for Congo Red Adsorption

Facile Synthesis of Cu-Zn Binary Oxide Coupled Cadmium Tungstate (Cu-ZnBO-Cp-CT) with Enhanced Performance of Dye Adsorption

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