A5030870857- Gold and Silver Nanoparticles Synthesis and Applications
- Malaria Research and Control
- Trypanosoma species research and implications
- Research on Leishmaniasis Studies
- Plasmonic and Surface Plasmon Research
- Hematological disorders and diagnostics
- Quantum Dots Synthesis And Properties
- Metamaterials and Metasurfaces Applications
- Legal Education and Practice Innovations
- Nanocluster Synthesis and Applications
- Vector-borne infectious diseases
- Eosinophilic Disorders and Syndromes
- Mosquito-borne diseases and control
- Hemoglobinopathies and Related Disorders
- Travel-related health issues
- Nanomaterials and Printing Technologies
- Advanced Materials and Mechanics
- Erythrocyte Function and Pathophysiology
- Food Allergy and Anaphylaxis Research
- Esophageal and GI Pathology
- Escherichia coli research studies
- Modular Robots and Swarm Intelligence
- Photonic Crystals and Applications
- Dermatological diseases and infestations
- Medical and Health Sciences Research
Leibniz Institute of Polymer Research
2016-2023
Technische Universität Dresden
2017-2022
Independent Production Fund
2021
Heidelberger Druckmaschinen (Germany)
2020
EBSCO Industries (United States)
2019
Universität Trier
2017
Center for Advancing Health
2017
University of Bayreuth
2015
Institute of Physical Chemistry
2014
University of Lübeck
2008
We studied the controlled growth of triangular prismatic Au nanoparticles with different beveled sides for surface-enhanced Raman spectroscopy (SERS) applications. First, in a seedless synthesis using 3-butenoic acid (3BA) and benzyldimethylammonium chloride (BDAC), gold nanotriangles (AuNTs) were synthesized mixture nanooctahedra (AuNOCs) separated by depletion-induced flocculation. Here, influence temperature, pH, reducing agent on reaction kinetics was initially investigated UV-vis...
We present a bottom-up assembly route for large-scale organization of plasmonic nanoparticles (NPs) into three-dimensional (3D) modular assemblies with core/satellite structure. The protein-assisted small spherical gold or silver NPs hydrophilic protein shell (as satellites) onto larger metal cores) offers high modularity in sizes and composition at satellite coverage (close to the jamming limit). resulting dispersions metal/metal nanoclusters exhibit colloidal stability therefore allow...
Inspired by the concept of living polymerization reaction, we are able to produce silver–gold–silver nanowires with a precise control over their total length and plasmonic properties establishing constant silver deposition rate on tips penta-twinned gold nanorods used as seed cores. Consequently, wires increases linearly in time. Starting ∼210 nm × 32 cores, nanowire lengths up several microns highly controlled manner, small self-limited increase thickness ∼4 nm, corresponding aspect ratios...
Abstract Metallic nanostructures exhibit strong interactions with electromagnetic radiation, known as the localized surface plasmon resonance. In recent years, there is significant interest and growth in area of coupled metallic nanostructures. such assemblies, short‐ long‐range coupling effects can be tailored emergent properties, e.g., metamaterial effects, realized. The term “plasmonic metasurfaces” used for this novel class assemblies deposited on planar surfaces. Herein, focus plasmonic...
Nanorattles are metallic core–shell particles with core and shell separated by a dielectric spacer.
Abstract Photoacoustics is a powerful biomedical imaging and detection technique, because it noninvasive, nonionizing, low‐cost method facilitating deep tissue penetration. However, suitable contrast agents need to be developed increase the for in vivo imaging. Gold nanoparticles are often discussed as potential sonophores due their large absorption cross‐section tunable plasmon resonance. disadvantages such toxicity low photoacoustic efficiency transparency window prevail, preventing...
Plasmonic waveguides consisting of metal nanoparticle chains can localize and guide light well below the diffraction limit, but high propagation losses due to lithography-limited large interparticle spacing have impeded practical applications. Here, we demonstrate that DNA-origami-based self-assembly monocrystalline gold nanoparticles allows be decreased ∼2 nm, thus reducing 0.8 dB per 50 nm at a deep subwavelength confinement 62 (∼λ/10). We characterize individual with nanometer-scale...
Although remote patient-reported outcome measure (PROM) monitoring has shown promising results in cancer care, there is a lack of research on PROM orthopedics.To determine whether can improve health outcomes for patients with joint replacement compared the standard care.A 2-group, patient-level randomized clinical trial (PROMoting Quality) across 9 German hospitals recruited aged 18 years or older primary hip knee from October 1, 2019, to December 31, 2020, follow-up until March...
We demonstrate the large-scale organisation of anisotropic nanoparticles into linear assemblies displaying optical anisotropy on macroscopic areas. Monodisperse gold nanorods with a hydrophilic protein shell are arranged by dip-coating wrinkled surfaces and subsequently transferred to indium tin oxide (ITO) substrates capillary transfer printing. elucidate how tuning wrinkle amplitude enables us precisely adjust assembly morphology fabricate single, double triple nanorod lines. For single...
We investigate the effect of surfactant-mediated, asymmetric silver overgrowth gold nanorods on their intrinsic optical properties. From concentration-dependent experiments, we established a close correlation extinction in UV/vis/NIR frequency range and morphological transition from to Au@Ag cuboids. Based this correlation, generic methodology for situ monitoring evolution cuboid morphology was developed applied time-dependent experiments. find that growth rates are sensitive substitution...
We investigate the formation of chains few plasmonic nanoparticles—so-called oligomers—by strain-induced fragmentation linear particle assemblies. Detailed investigations process are conducted by in situ atomic force microscopy and UV–vis–NIR spectroscopy. Based on these experimental results mechanical simulations computed lattice spring model, we propose a mechanism that explains observed decrease chain polydispersity upon increasing strain provides guidelines for tailoring length...
We demonstrate a template-assisted colloidal self-assembly approach for magnetic metasurfaces on macroscopic areas. The choice of anisotropic particle geometry, assembly pattern and metallic film is based rational design criteria, taking advantage mirror-charge effects gold nanorods placed film. Monodisperse prepared utilizing wet-chemistry are arranged with high precision wrinkled templates to form linear array-type assemblies subsequently transferred thin Due the obtained particle-to-film...
Abstract To date, it has not been possible to combine the high optical quality of silver particles with good chemical stability and synthetic convenience in a fully aqueous system, while simultaneously allowing surface functionalization. We present pathway for future developments information, energy medical technology where strong optical/electronic properties are crucial. Therefore, advantages inherent gold fused plasmonic Au/Ag/Au core–shell shell system. These nanoparticles inherit low...
Chains of metallic nanoparticles sustain strongly confined surface plasmons with relatively low dielectric losses. To exploit these properties in applications,such as waveguides, the fabrication long chains disorder and a thorough understanding plasmon-mode properties, such dispersion relations, are indispensable. Here, we use wrinkled template for directed self-assembly to assemble gold nanoparticles. With this up-scalable method, chain lengths from two particles (140 nm) 20 (1500 beyond...
The design of colloidal nanostructures as surface-enhanced Raman scattering (SERS) substrates requires control over both structural and optical characteristics. A widespread expectation is that the SERS efficiency depends crucially on whether plasmonic excitation matches exciting laser wavelength. However, also balance between radiative (scattering) nonradiative (absorbing) properties plays a major role, regarding near-field enhancement experimentally observed signal intensity. We present...
Research on employing advanced oxidation processes (AOPs) for pharmaceuticals removal is gaining interests. However, detrimental effects of background water constituents in complex matrices are limiting their implementation. In this study, we report red light induced methylene blue photosensitization (MB/Red-light) as a promising alternative from wastewater, because its potential to overcome experienced other AOP technologies. the efficacy MB/Red-light degradation four pharmaceutical...
Diclofenac (DCF) is one of the most widespread and consumed analgesics, thereby causing contamination water bodies on a global scale. A common approach to tackle this pressing issue adsorption DCF exploiting highly hydrophobic polymers. However, controlling morphology such polymers essential. Adsorption capacities presented conjugated microporous polymer (CMP) in bulk‐form, for ( q sat ) are as low 13.0 mg g −1 despite exhibiting additional nitrogen moieties specifically target DCF. Herein,...
We demonstrate second-harmonic generation with ultranarrow resonances in hybrid plasmon-fiber cavities, formed by depositing single-crystalline gold nanorods onto the surface of tapered microfibers diameters range 1.7-1.8 μm. The localized plasmon mode single nanorod efficiently couples a whispering gallery fiber, resulting very narrow resonance high quality factor Q up to 250. When illuminated tunable 100 fs laser, sharp SHG peak narrower than half spectral width impinging laser emerges,...