A5033896553- Gold and Silver Nanoparticles Synthesis and Applications
- Nanocluster Synthesis and Applications
- Molecular Sensors and Ion Detection
- Nanoparticles: synthesis and applications
- Advanced Nanomaterials in Catalysis
- Luminescence and Fluorescent Materials
- Nanomaterials for catalytic reactions
- Quantum Dots Synthesis And Properties
- Graphene and Nanomaterials Applications
- Electrochemical sensors and biosensors
- Laser-Ablation Synthesis of Nanoparticles
- Advanced biosensing and bioanalysis techniques
- Analytical Chemistry and Sensors
- Liquid Crystal Research Advancements
- Metal complexes synthesis and properties
- Crystallization and Solubility Studies
- X-ray Diffraction in Crystallography
- Photochromic and Fluorescence Chemistry
- Electrocatalysts for Energy Conversion
- Lanthanide and Transition Metal Complexes
- Organoselenium and organotellurium chemistry
- Crystallography and molecular interactions
- Photochemistry and Electron Transfer Studies
- Spectroscopy Techniques in Biomedical and Chemical Research
- Supramolecular Self-Assembly in Materials
University of Cyprus
2025
Associação Científica Proteomass
2014-2024
Universidade Nova de Lisboa
2013-2024
Rede de Química e Tecnologia
2013-2024
Clovis Oncology (United States)
2014-2023
Laboratório Associado para a Química Verde
2019
University of Lisbon
2015
Universidade de Vigo
2012-2013
The global increase in multidrug-resistant bacteria poses a challenge to public health and requires the development of new antibacterial materials. In this study, we examined bactericidal properties mesoporous silica-coated silver nanoparticles, varying core sizes (ca. 28 nm 51 nm). We also investigated gold nanoparticles 26 nm) coated with silica as possible inert metal cores. To investigate modification antimicrobial activity after surface charge change, used shell 16 functionalized...
In this work, the successful preparation and characterization of gold nanorods (AuNRs) coated with a mesoporous silica shell (AuNRs@Simes) was achieved. Conjugation methylene blue (MB) as model drug using ultrasound-stimulated loading has been explored for further application in light-mediated antibacterial studies. Lyophilization conjugated nanosystem analyzed trehalose (TRH) cryogenic protector. The obtained stable dry formulation shows potent antimicrobial activity against Gram-negative...
Gold nanostars with tuneable optical properties are synthesized via a seed-mediated approach employing adenosine monophosphate (AMP) as capping ligand. AMP directs the reduction of gold salt and mediates anisotropic nanoparticle growth.
The global increase in multidrug-resistant bacteria poses a challenge to public health and requires the development of new antibacterial materials. In this study, we examined bactericidal properties mesoporous silica-coated silver nanoparticles, varying core sizes (28 nm 51 nm). We also investigated gold nanoparticles (26 nm) coated with silica coating as possible inert metal cores. To investigate modification antimicrobial activity after surface charge change, used 28 shell (16...
Gold nanostars (AuNSTs) stabilized with adenosine monophosphate (AMP) were synthesized using a scalable method, achieving 30-fold yield increase compared to previous studies AMP as shaping agent, while also reducing the reaction time 3 h. The AuNSTs coated mesoporous silica (mSiO2) via robust approach, producing AuNSTs@mSiO2 nanoparticles (NPs) tunable thicknesses and consistent optical properties for range of morphologies. NPs additionally platinum (Pt) before synthesizing mSiO2 layer,...
Iron is the most abundant element by mass in Earth. Despite being an inexpensive material used a wide range of applications, its role as reducing agent for synthesis plasmonic nanoparticles has not been explored detail. In present work, we have studied use iron(II) sulfate green reductant gold (AuNPs) absence or presence different molecules. First, demonstrate that iron(II), any additive capping agent, able to reduce Au(III) generate AuNPs. However, reduction yield 100% and obtained NPs are...
Abstract Invited for this month's cover picture is the BIOSCOPE group of Professors Carlos Lodeiro and José Luis Capelo at REQUIMTE/UCIBIO‐LAQv‐FCT University NOVA Lisbon (Portugal), their collaborators. The devoted to Translational Research, shows Portuguese Flag represented by interaction between cells Janus gold/silver nanoparticles functionalized with rhodamine (red) Fluorescein (green) dyes as tools biomedical translational research. Read full text Review 10.1002/open.201700135 .
Bimetallic nanostructures composed of gold (Au) and palladium (Pd) have garnered increased interest for their applications in heterogeneous catalysis. This study reports a simple strategy manufacturing Au@Pd bimetallic branched nanoparticles (NPs), which offer tunable optical response, using polyallylamine-stabilized AuNPs as template cores Pd overgrowth. The content can be altered by manipulating the concentration PdCl42– ascorbic acid (AA) that are injected, permit an overgrowth shell up...
Bimetallic nanomaterials have generated significant interest across diverse scientific disciplines, due to their unique and tunable properties arising from the synergistic combination of two distinct metallic elements. This study presents a novel approach for synthesizing branched gold–platinum nanoparticles by utilizing poly(allylamine hydrochloride) (PAH)-stabilized gold nanoparticles, with localized surface plasmon resonance (LSPR) response around 1000 nm, as template platinum deposition....
We present a seed-mediated synthesis method for producing silver nanoplates (AgNPTs) with customizable size and thickness, ensuring high yield precise optical properties. This approach leverages ethylenediaminetetraacetic acid (EDTA) as key component in the process, utilizing small single-crystal seeds. The interaction between Ag+ ions EDTA at varying pH levels dynamically regulates complexation reduction kinetics during seed overgrowth, leading to formation of truncated superior responses....
Abstract Polyamine ligands are very versatile compounds due to their water solubility and flexibility. In the present work, we have exploited binding ability of a polyamine molecular linker ( L 2− ) bearing different functional groups, which favors self‐assembling silver nanoparticles (AgNPs) gold (AuNPs) into 1D nanochains in aqueous solution. The chainlike assemblies AuNPs AgNPs were structurally stable for long period time, during characteristic optical properties remained unchanged....
In the present work, synthesis and characterization of silver triangular nanoplates (AgNTs) their silica coating composites are reported. Engineering control on surface has demonstrated possibility to modulate antibacterial effect. Several AgNT-coated nanomaterials, such as PVP (Polyvinylpyrrolidone) MHA (16-mercaptohexadecanoic acid) a stable organic system well uniform (≈5 nm) AgNTs, have been prepared fully characterized. The properties systems reported, (MHA) inorganic (amine carboxylic...
In this study, we propose a novel approach for the silica coating of silver nanoparticles based on surface modification with adenosine monophosphate (AMP). Upon AMP stabilization, can be transferred into 2-propanol, promoting growth particle surfaces through standard Stöber process. The obtained shells are uniform and homogeneous, method allows high degree control over shell thickness while minimizing presence uncoated NPs or negligible core-free NPs. addition, AMP-functionalized AgNPs could...