Clays enhanced with niobium: potential in wastewater treatment and reuse as pigment with antibacterial activity

• Silvia Jaerger,
• Patricia Appelt,
• Mario Antônio Alves da Cunha,
• Fabián Ccahuana Ayma,
• Ricardo Schneider,
• Carla Bittencourt and
• Fauze Jacó Anaissi

Beilstein J. Nanotechnol. 2025, 16, 141–154, doi:10.3762/bjnano.16.13

• Physical Electronics (Chanhassen, MN, USA), equipped with a monochromatic Al Kα X-ray source. The binding energy was calibrated based on the C 1s peak at 284.6 eV. Laser-induced breakdown spectroscopy (LIBS) analyses were carried out by using the Applied Spectra J200 equipment. The clay samples were

Luminescent gold nanoclusters for bioimaging applications

• Nonappa

Beilstein J. Nanotechnol. 2020, 11, 533–546, doi:10.3762/bjnano.11.42

• ex vivo imaging of organs harvested at 1, 5 and 24 h exhibited a low level of fluorescence in the kidney further showing renal clearance (Figure 7E). A decrease of 66% in the NC signal between 1 and 5 h was observed. Using multi-elemental laser-induced breakdown spectroscopy (LIBS) particle clearance

Time-dependent growth of crystalline Au⁰-nanoparticles in cyanobacteria as self-reproducing bioreactors: 2. Anabaena cylindrica

• Liz M. Rösken,
• Felix Cappel,
• Susanne Körsten,
• Christian B. Fischer,
• Andreas Schönleber,
• Sander van Smaalen,
• Stefan Geimer,
• Christian Beresko,
• Georg Ankerhold and
• Stefan Wehner

Beilstein J. Nanotechnol. 2016, 7, 312–327, doi:10.3762/bjnano.7.30

• (XRD), transmission electron microscopy (TEM) and laser-induced breakdown spectroscopy (LIBS) are applied to monitor the time-dependent development of gold nanoparticles for up to 40 hours. Some vegetative cells (VC) are filled with nanoparticles within minutes, while the extracellular polymeric

• nanoparticles are found to be located along the thylakoid membranes. Keywords: biosynthesis; gold nanoparticles; laser-induced breakdown spectroscopy (LIBS); transmission electron microscopy (TEM); X-ray powder diffraction (XRD); Introduction Precious metallic nanoparticles are of steadily increasing interest

• the vegetative cells are more important as location for nanoparticle biosynthesis than the heterocysts. In this study we have undertaken first steps to quantify the uptake of gold into the cyanobacteria in various ways: Laser-induced breakdown spectroscopy (LIBS) shows that the higher the