Photodamage and photoprotection: toward safety and sustainability through nanotechnology solutions

Fernandes, Carlos; Benfeito, Sofia; Fonseca, André; Oliveira, Catarina; Garrido, Jorge; Garrido, Eduardo; Borges, Fernanda

doi:10.1016/b978-0-12-804303-5.00015-8

Cited by 8 publications

(4 citation statements)

References 176 publications

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“…In recent years, metal and metal oxide nanoparticles were very encouraging materials applied in several fields due to their numerous valuable properties, such as catalytic, optical, magnetic, and electrical properties. Metal and metal oxide nanoparticles were used in various fields such as lightemitting devices, biomedicine, soil stabilization, catalysis, water treatment, transparent, conductive contacts, piezoelectric transducers, laser deflectors, solar cells, biosensors, and gas sensors [12][13][14]. Among metal oxide nanoparticles, zinc oxide nanoparticles (ZnO NPs) seem to be the excellent candidates for antibacterial activity, green agrochemicals, photocatalytic degradation, antimicrobial activity, and photocatalysis for environmental remediation [15,16].…”

Section: Introductionmentioning

confidence: 99%

Plant-Mediated Biosynthesis and Photocatalysis Activities of Zinc Oxide Nanoparticles: A Prospect towards Dyes Mineralization

Fagier

2021

Journal of Nanotechnology

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In recent years, nanoparticles synthesis by green synthesis has gained extensive attention as a facile, inexpensive, and environmentally friendly method compared with chemical and physical synthesis methods. This review covered the biosynthesis of zinc oxide nanoparticles (ZnO NPs), including the procedure and mechanism. Factors affecting the formation of ZnO NPs are discussed. The presence of active bioorganic molecules in plant extract played a vital role in the formation of ZnO NPs as a natural green medium in the metallic ion reduction processes. ZnO NPs exhibit attractive photocatalysis properties due to electrochemical stability, high electron mobility, and large surface area. In this review, the procedure and mechanism of the ZnO photocatalysis process are studied. The effects of dyes amount, catalysts, and light on photodegradation efficiency are also considered. This review provides useful information for researchers who are dealing with green synthesis of ZnO NPs. Moreover, it can provide investigators with different perceptions towards the efficiency of biosynthesized ZnO NPs on dyes degradation and its restrictions.

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Section: Introductionmentioning

confidence: 99%

Plant-Mediated Biosynthesis and Photocatalysis Activities of Zinc Oxide Nanoparticles: A Prospect towards Dyes Mineralization

Fagier

2021

Journal of Nanotechnology

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“…[41] Thus, the developed film holds potential for active and intelligent food packaging, as it is expected to effectively prevent oxidation-induced food spoilage owing to its outstanding UV barrier properties, aligning with previous research findings. [42,43] 3.4. Water Absorption, Solubility, and Soil Burial Test…”

Section: Optical Propertiesmentioning

confidence: 99%

Flower Extract–Polyvinyl Alcohol‐Based Biocomposites for Sustainable Food Packaging Applications

Sagade Muktar Ahmed,

Sagade Mokthar Ahamed,

Madanahalli Ankanathappa

et al. 2024

Physica Status Solidi (a)

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The proliferation of single‐use plastics has led to widespread pollution and ecological harm, prompting a concerted effort to develop sustainable alternatives. Among them, biocomposite plastic films have emerged as a promising solution for food packing applications. Herein, the preparation of polyvinyl alcohol (PVA) biocomposite films incorporating Clitoria ternatea (CT) flower extracts is reported. The obtained films are subjected to various analytical techniques. Fourier transform infrared spectroscopy analysis reveals the intense peak of hydrogen bonding at 3321 cm−1 in the composite film. CT‐PVA films possess less opacity and UV light‐blocking capabilities. The PVA‐CT films are examined for water absorption, UV barrier, soil degradability, and water‐soluble properties, greater propensity to dissolve in water during the water absorption test is noticed. Enzymatic oxidation followed by hydrolysis of functional groups enhances the soil degradation rate in biocomposite films. Further, the colorimetric study of CT‐PVA solution at different pH shows colored CT–PVA films. From the results and observations, the CT‐PVA biocomposite film (8 mL) proves to be a promising candidate for utilization in the food industry as a packaging material.

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“…Vitamin A is a class of fat-soluble chemical compounds, known as retinoids, that includes retinol, retinal, and retinoic acid [92,93,94]. Retinol, the most active form, is an important chain-breaking antioxidant, involved in scavenging superoxide and hydroxyl radicals [94].…”

Section: Antioxidants For Neuroprotectionmentioning

confidence: 99%

Antioxidant Therapies for Neuroprotection—A Review

Teleanu

Chircov

Grumezescu

et al. 2019

JCM

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Although moderate concentrations of reactive oxygen species (ROS) and reactive nitrogen species (RNS) are crucial for various physiological processes within the human body, their overproduction leads to oxidative stress, defined as the imbalance between the production and accumulation of ROS and the ability of the body to neutralize and eliminate them. In the brain, oxidative stress exhibits significant effects, due to its increased metabolical activity and limited cellular regeneration. Thus, oxidative stress is a major factor in the progressive loss of neurons structures and functions, leading to the development of severe neurodegenerative disorders. In this context, recent years have witnessed tremendous advancements in the field of antioxidant therapies, with a special emphasis for neuroprotection. The aim of this paper is to provide an overview of the oxidative stress and antioxidant defense mechanisms and to present the most recent studies on antioxidant therapies for neuroprotection.

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Photodamage and photoprotection: toward safety and sustainability through nanotechnology solutions

Cited by 8 publications

References 176 publications

Plant-Mediated Biosynthesis and Photocatalysis Activities of Zinc Oxide Nanoparticles: A Prospect towards Dyes Mineralization

Plant-Mediated Biosynthesis and Photocatalysis Activities of Zinc Oxide Nanoparticles: A Prospect towards Dyes Mineralization

Flower Extract–Polyvinyl Alcohol‐Based Biocomposites for Sustainable Food Packaging Applications

Antioxidant Therapies for Neuroprotection—A Review

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