A5037910413- Microplastics and Plastic Pollution
- Nanoparticles: synthesis and applications
- Marine Biology and Environmental Chemistry
- Recycling and Waste Management Techniques
- Graphene and Nanomaterials Applications
- Advanced Nanomaterials in Catalysis
- Gold and Silver Nanoparticles Synthesis and Applications
- biodegradable polymer synthesis and properties
- Electrochemical Analysis and Applications
- Air Quality and Health Impacts
- Nanotechnology research and applications
- Marine Invertebrate Physiology and Ecology
- Effects and risks of endocrine disrupting chemicals
- Mine drainage and remediation techniques
- Nanomaterials for catalytic reactions
- Geochemistry and Elemental Analysis
- Arsenic contamination and mitigation
- Pharmaceutical and Antibiotic Environmental Impacts
- TiO2 Photocatalysis and Solar Cells
University of Siena
2019-2024
University of Palermo
2023-2024
Roma Tre University
2022
In this work, hydrophilic silver nanoparticles (AgNPs), bifunctionalized with citrate (Cit) and L-cysteine (L-cys), were synthesized. The typical local surface plasmon resonance (LSPR) at λ max = 400 nm together Dynamic Light Scattering (DLS) measurements (<2RH> 8 ± 1 nm) TEM studies (Ø 5 2 confirmed the system nanodimension stability in water. Molecular electronic structures of AgNPs investigated by FTIR, SR-XPS, NEXAFS techniques. We tested as plasmonic sensor water 16 different...
Nanoplastic (<1 µm) pollution in the marine environment is a cause of growing concern due to current difficulties measuring their occurrence abiotic and biotic matrices, with consequent uncertainties on ecological risk for natural communities associated ecosystem services. Most investigations dealing nano-ecotoxicity have been conducted bench-scale by examining effects single model species under short-term exposure conditions at high concentrations (>50 mgL−1). Both negligible impacts...
Surface capping rules AgNP dissolution and interaction with biomolecules cells, influencing the exposure outcome.
Plastic pollution is recognized as a global environmental threat and concern increasing regarding the potential interactions of smallest fragments, nanoplastics (1 µm), with either physical chemical entities encountered in natural environment, including toxic pollutants. The size (<100 nm) rebounds to their safety associated remarkable biological, reactivity that allow them interact cellular machinery by crossing biological barriers causing damage living beings. Recent findings on...
The ability to employ waste products, such as vegetable scraps, raw materials for the synthesis of new promising adsorbing is at base circular economy and end concepts. Dextrin-based nanosponges (D_NS), both cyclodextrin (CD) maltodextrin (MD), have shown remarkable adsorption abilities in removal toxic compounds from water wastewater, thus representing a bio-based low-cost solution which establishing itself market. Nevertheless, their environmental safety either aquatic or terrestrial...
Functionalized silver nanoparticles (AgNPs) are widely used as optical sensors for heavy metal ions in water, due to their versatile, easy and cheap preparations peculiar physico-chemical properties. Surface functionalization plays a key role AgNPs chemical-physical behavior capping agents can affect sensitivity, selectivity but alsoenvironmental safety. In this framework, synthetised properly functionalized using two induce hydrophilic selectivity, respectively citrate (cit) glutathione...
Abstract Hydrophilic silver nanoparticles (AgNPs) are widely used in advanced biotechnologies, due to their versatile, easy, cheap preparations and peculiar physico-chemical properties. It is well known that surface functionalization plays a key role defining the chemical-physical behaviour of AgNPs. If for monitoring remediation heavy metals polluted water, can direct selectivity sensitivity nanomaterial. Moreover, different capping agents also induce ecotoxicity. In this framework AgNPs...
Nanosilver applications, including sensing and water treatment, have significantly increased in recent years, although safety for humans the environment is still under debate. Here, we tested environmental of a novel formulation silver nanoparticles functionalized with citrate L-cysteine (AgNPcitLcys) on freshwater cnidarian Hydra vulgaris as an emerging ecotoxicological model engineered nanomaterials. AgNPcitLcys behavior was characterized by dynamic light scattering (DLS), while Ag release...
Along with social and economic development, population growth the increasing interests in exploitation of marine resources, a progressively increase pollution is expected. Both communities populating coastal areas as well deep sea have been continuously threatened by various classes chemical pollutants associated environmental deterioration reduction ecosystem services. Since sustainable development ecological protection ocean means that human beings, efficient solutions for monitoring...