Search results
Search for "nanoparticle morphology" in Full Text gives 13 result(s) in Beilstein Journal of Nanotechnology.
Gold nanomakura: nanoarchitectonics and their photothermal response in association with carrageenan hydrogels
Beilstein J. Nanotechnol. 2024, 15, 678–693, doi:10.3762/bjnano.15.56
- examined the effect of different carbon tail lengths of these surfactants in determining nanoparticle morphology (aspect ratio) and photothermal response. The growth solution used was kept uniform in case of all three surfactants to establish the specific effect of carbon tail length on the respective
Plasmonic nanotechnology for photothermal applications – an evaluation
Beilstein J. Nanotechnol. 2023, 14, 380–419, doi:10.3762/bjnano.14.33
Systematic studies into uniform synthetic protein nanoparticles
Beilstein J. Nanotechnol. 2022, 13, 274–283, doi:10.3762/bjnano.13.22
- matrix proteins on the physical properties of the respective nanoparticles. Specifically, this work systematically explores the relationship between SPNP formulation parameters and nanoparticle morphology, while also providing detailed insights into size distributions and uniformities. Results and
The different ways to chitosan/hyaluronic acid nanoparticles: templated vs direct complexation. Influence of particle preparation on morphology, cell uptake and silencing efficiency
Beilstein J. Nanotechnol. 2019, 10, 2594–2608, doi:10.3762/bjnano.10.250
- to shed further light on the nanoparticle morphology we have employed field flow fractionation, using both static (AF4-SLS) and dynamic (AF4-DLS) light scattering detectors. In addition to more accurate size distributions due to the fractionation prior to the in-line analysis, this combination
- better exposure of HA-bound ligands [16]. The more general conclusion, however, is the strongly cell-dependent nature of the effects that nanoparticle morphology may have on nanoparticle internalization and silencing performance (see point A in the previous paragraph). This highlights the need of a
Nanoporous water oxidation electrodes with a low loading of laser-deposited Ru/C exhibit enhanced corrosion stability
Beilstein J. Nanotechnol. 2019, 10, 157–167, doi:10.3762/bjnano.10.15
- of the nanoporous geometry (variation of the pore length) towards obtaining reasonable current densities at low overpotential, (2) the minimization of corrosion via minimized overpotential and nanoparticle morphology, and (3) the minimization of noble metal loading. These efforts result in a very
Influence of hydrothermal synthesis parameters on the properties of hydroxyapatite nanoparticles
Beilstein J. Nanotechnol. 2016, 7, 1586–1601, doi:10.3762/bjnano.7.153
- parameters, particle size, particle size distribution, water content, and structure. HAp nanoparticle morphology and structure were determined using scanning electron microscopy (SEM) and transmission electron microscopy (TEM). X-ray diffraction measurements confirmed crystalline HAp was synthesized, which
Improved biocompatibility and efficient labeling of neural stem cells with poly(L-lysine)-coated maghemite nanoparticles
Beilstein J. Nanotechnol. 2016, 7, 926–936, doi:10.3762/bjnano.7.84
- efficiency, cellular viability, cytotoxicity, behavior after labeling, and the mechanism of internalization was determined and compared. Results Characterization of the nanoparticle morphology To compare the morphology of PLL-γ-Fe2O3 nanoparticles with commercially available nanomag®-D-spio particles
- nanoparticle morphology and to identify crystal structure, respectively. Micrographs were processed by image analysis program NIS Elements (Laboratory Imaging, Prague, Czech Republic). More than 100 particles were segmented in each experiment using automated edge detection. Each particle was characterized by
- micrographs of (A) PLL-γ-Fe2O3 and (B) nanomag®-D-spio nanoparticles. Insets show the corresponding electron diffraction patterns. (C) The nanoparticle morphology was characterized by measuring morphological descriptors. Area (A) and perimeter (P) of the analyzed particles were determined by counting the
The role of morphology and coupling of gold nanoparticles in optical breakdown during picosecond pulse exposures
Beilstein J. Nanotechnol. 2016, 7, 869–880, doi:10.3762/bjnano.7.79
- contains gold nanoparticles is a function of the ionization energy, the impurity level of the medium, nanoparticle morphology and concentration, and the laser beam characteristics (pulse duration, wavelength and intensity) [19]. In an aqueous medium without nanoparticles, the initiation of multiphoton
- nanoparticles on the optical breakdown threshold. We present a comparison of on- and off-resonance 6 ps laser pulse interactions with uncoupled and tightly-coupled gold nanospheres and nanorod monomers of different sizes, with a focus on the thermal and optical processes. The role of nanoparticle morphology and
- that the use of gold nanoparticles and their assemblies can decrease the fluence threshold by up to four orders of magnitude. Figure 6 shows the impact of the gold nanoparticle morphology (nanosphere monomer, dimer, trimer and nanorods of different size) and laser pulse characteristics (wavelength and
Gold nanoparticles covalently assembled onto vesicle structures as possible biosensing platform
Beilstein J. Nanotechnol. 2016, 7, 655–663, doi:10.3762/bjnano.7.58
- sensible to the conditions under which they are formed. As the irradiation time modifies the nanoparticle morphology we decided to irradiate for longer time, in this case, 13 min. Some techniques, such as UV–vis spectroscopy and TEM were used to perform the morphological characterization of the AuNPs
Biological responses to nanoscale particles
Beilstein J. Nanotechnol. 2015, 6, 380–382, doi:10.3762/bjnano.6.37
- studies of nanoparticles) that the surface area seems to be one of the properties that causes a severe biological response, other properties such as solubility, hydrophobicity, surface functionalization, surface charge, colloidal stability and nanoparticle morphology have been suggested to be of equal
Ionic liquid-assisted formation of cellulose/calcium phosphate hybrid materials
Beilstein J. Nanotechnol. 2014, 5, 1553–1568, doi:10.3762/bjnano.5.167
- beam during electron diffraction. In contrast to the samples grown with GAA, samples grown with NaOH are more uniform and SEM (Figure 2) shows the typical nanoparticle morphology that is also observed for calcium phosphate grown from aqueous solution at basic conditions [12][13]. Also consistent with
Structure, morphology, and magnetic properties of Fe nanoparticles deposited onto single-crystalline surfaces
Beilstein J. Nanotechnol. 2011, 2, 47–56, doi:10.3762/bjnano.2.6
- to reconstruct features of the nanoparticle morphology [64]. Figure 4b and Figure 4c show such reconstructed images of two particles. The images indeed show indications for particle shapes according to the Wulff construction (see the schematics in the figures). Moreover, the particles in Figure 4b
Flash laser annealing for controlling size and shape of magnetic alloy nanoparticles
Beilstein J. Nanotechnol. 2010, 1, 55–59, doi:10.3762/bjnano.1.7
- laser irradiation. This technique is then very interesting for magnetic alloy nanoparticles studies and applications because it opens up a new way to fabricate size-controlled spherical nanoparticles with narrow size dispersion. Keywords: magnetic alloy nanoparticles; nanoparticle morphology
Other Beilstein-Institut Open Science Activities
