Role of Nano-photocatalysis in Heavy Metal Detoxification

Mazumder, Ankita; Bhattacharya, Sutanu; Bhattacharjee, Chiranjib

doi:10.1007/978-3-030-12619-3_1

Cited by 10 publications

(4 citation statements)

References 75 publications

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“…Moreover, polymer-based micelles https://doi.org/10.26434/chemrxiv-2024-l76ph-v2 ORCID: https://orcid.org/0000-0003-4056-9739 Content not peer-reviewed by ChemRxiv. License: CC BY 4.0 provide tailored drug administration by regulating the release profile of the entrapped molecules in response to a particular stimuli like pH or temperature [19]. These traits of micelles can enhance drug penetration, delivery retention and drug accumulation at target sites for improved therapeutic outcomes [20].…”

Section: Introductionmentioning

confidence: 99%

Preparation and biochemical evaluation of diallyl-thiosulfinate/polyoxyethylene conjugated pH-responsive micelle with enhanced stability, hydrosolubility and antibacterial properties

Bhattacharya,

DasChowdhury

2024

Preprint

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Diallyl-thiosulfinate (allicin) is a major bioactive chemical with several notable therapeutic characteristics of garlic (Allium sativum). Nonetheless, one of the biggest concerns regarding the extensive use of allicin in biopharmaceutical commodities is its unstable characteristics. Therefore, utilizing Polyoxyethylene (Brij S20 and Brij 58), appropriate pH-responsive micelle carrier systems have been designed to entrap and improve allicin's stability at an ambient temperature (25 °C) while preserving its quantity and biological activity. Comparing the Brij S20 with the Brij 58 micelle carrier system, the latter demonstrated superior stability and entrapment. In addition, it was found that allicin's stability in micellized condition is significantly influenced by both pH and temperature (p<0.05). Additionally, the liberation of allicin from micelle is greatly aided by acidic pH 1.5. The liberation of allicin from the micelle in a controlled manner using lower pH as stimuli may facilitate its biological action at an individual's gastrointestinal lumen or near cancer cell environment having lower pH. Additionally, it was made sure that the micellization method did not impair allicin's bioactivity or reduce appropriate biocompatibility. The current study increases the likelihood of creating a commercially available allicin-loaded, micelle-based formulation for application in biopharma and food related industries.

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Section: Introductionmentioning

confidence: 99%

Preparation and biochemical evaluation of diallyl-thiosulfinate/polyoxyethylene conjugated pH-responsive micelle with enhanced stability, hydrosolubility and antibacterial properties

Bhattacharya,

DasChowdhury

2024

Preprint

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“…In response to these challenges, ongoing research and development efforts are focused on identifying more efficient, cost-effective, and sustainable methods for the removal of lead from wastewater. These include precipitation [4], electrolysis [5], adsorption [6], photocatalysis [7], membrane separation [8], and fenton-like oxidation [9], which are employed in water treatment. Precipitation methods currently stand as the primary treatment approach for acidic lead-containing wastewater.…”

Section: Introductionmentioning

confidence: 99%

Exploring Humic Acid as an Efficient and Selective Adsorbent for Lead Removal in Multi-Metal Coexistence Systems: A Review

Xue,

Hu,

Wan

et al. 2024

Separations

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Water pollution poses a global threat to human health, particularly in terms of ensuring a safe supply of drinking water. The accumulation of heavy metals from various water sources is increasing, driving the search for effective and environmentally friendly approaches and materials for metal removal. This review investigates the selective adsorption of Pb2+ by humic acid (HA) in a multi-metal coexistence solution. The focus is on discussing approaches to the structural identification of HA, highlighting that separation techniques are an effective method to reduce its heterogeneity. Starting from the key structural units of HA, the study reveals the interaction between HA and heavy metals. Approaches to enhance Pb2+ selective adsorption are explored, proposing that introducing activating groups, Ca ion exchange, and optimizing pore structures are effective approaches for improving lead ion selective adsorption. Ca2+ activation is suggested as a future research direction for lead-selective adsorption. Additionally, attaining lead selective adsorption through pH regulation’s significance is emphasized. This research contributes to a fundamental understanding of HA’s role as a selective lead adsorbent while offering practical implications for developing environmentally friendly adsorbent materials. The results aim to advance knowledge in environmental science and water treatment.

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“…If charge separation is maintained, the paired e − -h + may migrate to the surface of the photocatalyst. In the aqueous phase, the photoinduced h + can oxidize surface hydroxyl groups or surface-bond water molecules to produce hydroxyl radicals and other ROS [32,33]. Regarding electrocatalysts, they have to initiate an Oxygen Reduction Reaction (ORR) to generate hydrogen peroxide via two e − or four e − processes (Figure 2B).…”

Section: Introductionmentioning

confidence: 99%

An Overview of Environmental Catalysis Mediated by Hydrogen Peroxide

Rigoletto,

Laurenti,

Tummino

2024

Catalysts

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The use of hydrogen peroxide (produced in situ or ex situ) as the main agent in oxidative processes of environmental pollutant removal is widely studied. The degradation of water pollutants, such as dyes, pharmaceuticals, cosmetics, petroleum derivatives, and even pathogens, has been successfully obtained by different techniques. This review gives an overview of the more recent methods developed to apply oxidative processes mediated by H2O2 and other reactive oxygen species (ROS) in environmental catalysis, with particular attention to the strategies (Fenton-like and Bio-Fenton, photo- and electro-catalysis) and the materials employed. A wide discussion about the characteristics of the materials specifically studied for hydrogen peroxide activation, as well as about their chemical composition and morphology, was carried out. Moreover, recent interesting methods for the generation and use of hydrogen peroxide by enzymes were also presented and their efficiency and applicability compared with the Fenton and electro-Fenton methods discussed above. The use of Bio-Fenton and bi-enzymatic methods for the in situ generation of ROS seems to be attractive and scalable, although not yet applied in full-scale plants. A critical discussion about the feasibility, criticalities, and perspectives of all the methods considered completes this review.

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Role of Nano-photocatalysis in Heavy Metal Detoxification

Cited by 10 publications

References 75 publications

Preparation and biochemical evaluation of diallyl-thiosulfinate/polyoxyethylene conjugated pH-responsive micelle with enhanced stability, hydrosolubility and antibacterial properties

Preparation and biochemical evaluation of diallyl-thiosulfinate/polyoxyethylene conjugated pH-responsive micelle with enhanced stability, hydrosolubility and antibacterial properties

Exploring Humic Acid as an Efficient and Selective Adsorbent for Lead Removal in Multi-Metal Coexistence Systems: A Review

An Overview of Environmental Catalysis Mediated by Hydrogen Peroxide

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