A5020328035- Gold and Silver Nanoparticles Synthesis and Applications
- Catalytic Processes in Materials Science
- Gas Sensing Nanomaterials and Sensors
- Plasmonic and Surface Plasmon Research
- ZnO doping and properties
- Advanced Photocatalysis Techniques
- Electrocatalysts for Energy Conversion
- Bone Tissue Engineering Materials
- Nanomaterials and Printing Technologies
- Transition Metal Oxide Nanomaterials
- 3D Printing in Biomedical Research
- Nonlinear Optical Materials Studies
- Luminescence Properties of Advanced Materials
- Advanced Fluorescence Microscopy Techniques
- Perovskite Materials and Applications
- Innovative Microfluidic and Catalytic Techniques Innovation
- Cell Image Analysis Techniques
- Surface Modification and Superhydrophobicity
- Additive Manufacturing and 3D Printing Technologies
- Copper-based nanomaterials and applications
- Electrochemical Analysis and Applications
- Conducting polymers and applications
- Zeolite Catalysis and Synthesis
- Bacterial biofilms and quorum sensing
- Soft Robotics and Applications
University of Twente
2010-2025
Centro de Investigación en Materiales Avanzados
2023
Chan Heart Rhythm Institute
2020
Chalmers University of Technology
2019-2020
University of Liverpool
2015-2019
Göteborgs Stads
2019
Liverpool Hospital
2016
Universidad Nacional Autónoma de México
2009-2014
Catalytic Materials (United States)
2012-2014
Abstract The scientific community is exploiting the use of silver nanoparticles (AgNPs) in nanomedicine and other AgNPs combination like with biomaterials to reduce microbial contamination. In field biomaterials, are used as an antimicrobial agent. One most effective approaches for production green synthesis. Lysiloma acapulcensis ( L. ) a perennial tree traditional medicine Mexico. This contains abundant compounds. context activity, extracts can enhance its activity. this work, we...
When a droplet impacts upon surface heated above the liquid's boiling point, either comes into contact with and boils immediately (contact boiling), or is supported by developing vapor layer bounces back (film boiling, Leidenfrost state). We study transition between these characteristic behaviors how it affected parameters such as impact velocity, temperature, controlled roughness (i.e., micro-structures fabricated on silicon surfaces). In film regime, we show that residence time of droplets...
Nearly a century has passed since the discovery of first antibiotics. With each passing decade, more bacterial strains developed resistance towards existing Alternative methods to reduce contamination by bacteria and biofilms have arisen pressure on or currently This review highlights promising approaches prevent surface. Special attention is paid antibiotic-free antibacterial strategies that are not affected resistance. The been divided into four categories: (i) anti-adhesive, (ii) contact...
Evaporation-driven particle self-assembly can be used to generate three-dimensional microstructures. We present a unique method create colloidal microstructures in which we control the amount of particles and their packing fraction. To this end, evaporate dispersion droplets on special type superhydrophobic microstructured surface, droplet remains Cassie–Baxter state during entire evaporative process. The remainders consist massive spherical cluster microspheres, with diameters ranging from...
This study investigates the effect of different solvents used in synthesis carbon quantum dots (CQDs) on electrocatalytic performance MoS2/CQD heterostructures for hydrogen evolution reaction (HER). While previous research focused CQDs synthesized with deionized water, little attention has been given to influence other CQD behavior. To address this, we MoS2 3D cloths via a hydrothermal method and subsequently incorporated using glycerol, dimethylformamide (DMF). The choice solvent...
Co-axial electrospinning was applied for the structuring of non-woven webs TiO2 nanofibers loaded with Ag, Au, and CuO nanoparticles. The composite layers were tested in an electrochromic half-cell assembly. A clear correlation between nanoparticle composition effect nanofibrous is observed: Ag reveals a black-brown color, Au shows dark-blue dark-green color. For applications, Au/TiO2 layer most promising choice, color modulation time 6 s, transmittance 40%, coloration efficiency 20 cm2/C,...
The high-k materials are essential in thin-film transistors. A well-controlled thin film deposition that produces less electronic defects induced by charged vacancies is highly desirable for avoiding high leakage current and providing an exceptional dielectric strength. This work addresses the use of atomic layer (ALD), plasma-enhanced ALD (PEALD), its variants to produce low-defective HfO2. X-ray photoelectron spectroscopy (XPS) Capacitance-Voltage (C-V) analysis revealed thermal (TALD)...
A promising approach for reducing nitrate (NO3-) in water waste is NO3- reutilization to ammonia (NH3). This work investigates the synergistic effect of Cu40Ni60 catalyst on a defect-rich TiO2 (TNSD) carbon vulcan composite (C-TNSD). The study starts with CuNi metallic content pre-screened over (C) identify most ratios reduction reaction (NO3-RR) NH3. case Cu 20 wt.% and Ni 80 (Cu20Ni80), 40 60 (Cu40Ni60), (Cu60Ni40), wt.%, (Cu80Ni20) Cu/Ni monometallic catalysts. Among these ratios,...
The electrochemical synthesis of
Faceted colloidal nanoparticles are currently of immense interest due to their unique electronic, optical, and catalytic properties. However, continuous flow synthesis that enables rapid formation faceted single or multi-elemental composition is not trivial. We present a route for the uniformly sized Pd nanocubes PdPt core–shell in single-phase microfluidic reactor, which shaped with reaction time 3 min. The feature dendritic, high surface area Pt shell covering core, as verified using...
Photocatalytic H2 generation by water splitting is a promising alternative for producing renewable fuels. This work synthesized new type of Ta2O5/SrZrO3 heterostructure with Ru and Cu (RuO2/CuxO/Ta2O5/SrZrO3) using solid-state chemistry methods to achieve high production 5164 μmol g-1 h-1 under simulated solar light, 39 times higher than that produced SrZrO3. The performance compared other compositions loaded RuO2, CuxO, or Pt. CuxO used showcase the usage less costly cocatalysts produce H2....
Abstract Implementation of more refined structures at the nano to microscale is expected advance applications in optics and photonics. This work presents additive manufacturing 3D luminescent microarchitectures emitting light visible range. A tailor‐made organo‐metallic resin suitable for two‐photon lithography developed, which upon thermal treatment an oxygen‐rich atmosphere allows creation silicon‐free tetragonal ( t ‐) monoclinic m ZrO 2 . The approach unique because Zr‐resin different...
The conformal atomic layer deposition of a transparent conductive oxide composed Al-doped ZnO (AZO) over three-dimensional (3D) shaped ZrO2 microarchitectures produced using two-photon lithography (TPL) is reported here for the first time. effect morphology, surface roughness, and crystallographic phase (tetragonal monoclinic) on quality properties deposited AZO thin films investigated. No discontinuities, domains, or areas differing from desired chemical composition have been found in grown...
Surfaces that exhibit contact angles close to 180° for both polar and non-polar solvents are rare. Here we report the fabrication of such "omniphobic" surfaces by photolithography. We investigate their stability against a so-called wetting transition during evaporation millimetric water droplets systematically varying shape surface roughness micropillars on surface. show low edge curvature top strongly delays transition, while it completely disappears when is increased. compare these...
Abstract Photo-responsive antibacterial surfaces combining both on-demand photo-switchable activity and sustained biocidal release were prepared using sequential chemical grafting of nano-objects with different geometries functions. The multi-layered coating developed incorporates a monolayer near-infrared active silica-coated gold nanostars (GNS) decorated by silver nanoparticles (AgNP). This modular approach also enables us to unravel static photo-activated contributions the overall...
The additive manufacturing (AM) of yttria-stabilized zirconia (YSZ) microarchitectures with sub-micrometer precision via two-photon lithography (TPL), utilizing custom photoresin containing zirconium and yttrium monomers is investigated. YSZ 3D can be formed at low temperatures (600 °C). low-temperature phase stabilization ZrO2 doped Y2O3 demonstrates that doping ≈ 10 mol% stabilizes the c-ZrO2 phase. approach does not utilize particles as additives. Instead, crystallization initiated after...
Intravascular surgical instruments require precise navigation within narrow vessels, necessitating maximum flexibility, minimal diameter, and high degrees of freedom. Existing tools often lack control during insertion due to undesirable bending, limiting vessel accessibility risking tissue damage. Next-generation aim develop hemocompatible untethered devices controlled by external magnetic forces. Achieving this goal remains complex testing implementation challenges in clinical environments....
The global threat of antimicrobial resistance is driving an urgent need for novel strategies. Functional surfaces are essential to prevent spreading infection and reduce surface contamination. In this study we have fabricated characterized multiscale-functional nanotopographies with three levels functionalization: (1) nanostructure topography in the form silicon nanowires, (2) covalent chemical modification (3-aminopropyl)triethoxysilane, (3) incorporation chlorhexidine digluconate. Cell...
Two-photon lithography (TPL) is a promising technique for manufacturing ceramic microstructures with nanoscale resolution. The process relies on tailor-made precursor resins rich in metal-organic and organic constituents, which can lead to carbon-based residues incorporated within the microstructures. While these are generally considered unwanted impurities, our study reveals that presence of carbon-rich form graphitic disordered carbon tetragonal (t-) ZrO2 benefit mechanical strength TPL In...
Abstract 3D ceramic architectures are captivating geometrical features with an immense demand in optics. In this work, additive manufacturing (AM) approach for printing alkaline‐earth perovskite microarchitectures is developed. The enables custom‐made photoresists suited two‐photon lithography, permitting the production of (BaZrO 3 , CaZrO and SrZrO ) structures shaped form octet‐truss lattices, gyroids, or inspired like sodalite zeolite, C 60 buckyballs micrometric nanometric feature sizes....
Microscale functional materials permit advanced applications in optics and photonics. This work presents the additive manufacturing of three-dimensional structured phosphors emitting red, green, blue, white. The development is a step forward to realizing colour synthesis within complex architectures relevance integrated or light-emitting sources.