Probing the potential of rare earth elements in the development of new anticancer drugs: single molecule studies

• Josiane A. D. Batista,
• Rayane M. de Oliveira,
• Carlos H. M. Lima,
• Milton L. Lana Júnior,
• Virgílio C. dos Anjos,
• Maria J. V. Bell and
• Márcio S. Rocha

Beilstein J. Nanotechnol. 2025, 16, 187–194, doi:10.3762/bjnano.16.15

• the stock solutions in a phosphate-buffered saline (PBS) buffer with [Na+] = 150 mM, pH 7.4. The samples used for OT assays consist of biotin-labeled λ DNA molecules (New England Biolabs N3011S) tethered by the ends between a streptavidin-coated coverslip and a streptavidin-coated polystyrene bead (3

Thermophoretic tweezers for single nanoparticle manipulation

• Jošt Stergar and
• Natan Osterman

Beilstein J. Nanotechnol. 2020, 11, 1126–1133, doi:10.3762/bjnano.11.97

• manipulation. Independent manipulation of two 200 nm particles in water. (a) Particle trajectories. (b) Time dependence of interparticle separation. Supporting Information Supporting Information File 26: Real-time video of a trapped 200 nm polystyrene bead in water. Feedback frequency of 35 Hz. Field of view

Integrated photonics multi-waveguide devices for optical trapping and Raman spectroscopy: design, fabrication and performance demonstration

• Gyllion B. Loozen,
• Arnica Karuna,
• Mohammad M. R. Fanood,
• Erik Schreuder and
• Jacob Caro

Beilstein J. Nanotechnol. 2020, 11, 829–842, doi:10.3762/bjnano.11.68

• , as a result of direct illumination and scattering. (a) and (f) are optical microscope images of the 2-waveguide and 16-waveguide trap, respectively, with a trapped 1 μm polystyrene bead in the center. Further images in the upper (lower) row are histograms of the position of the 1 μm bead in the 2 (16

Silver-decorated gel-shell nanobeads: physicochemical characterization and evaluation of antibacterial properties

• Marta Bartel,
• Katarzyna Markowska,
• Marcin Strawski,
• Krystyna Wolska and
• Maciej Mazur

Beilstein J. Nanotechnol. 2020, 11, 620–630, doi:10.3762/bjnano.11.49

• ). Experimental procedures Preparation of sulfonated polystyrene beads and modification with silver nanoparticles: 50 µL of a polystyrene bead suspension (10% w/w) was allowed to dry for 30 min at 70 °C. Then, 500 µL of concentrated H2SO4 was added to the dried sample and kept in a heated bath at 55 °C for 4 h

Single-molecule mechanics of protein-labelled DNA handles

• Vivek S. Jadhav,
• Dorothea Brüggemann,
• Florian Wruck and
• Martin Hegner

Beilstein J. Nanotechnol. 2016, 7, 138–148, doi:10.3762/bjnano.7.16

• arrangements in different optical force measurements. a) PDHs tethered to an anti-DIG bead (2.9 μm diameter) in the optical trap pulled versus a biotinylated polystyrene bead (3.2 μm). b) DIG-DNA-Thiol covalently bound to an amino bead (2.1 μm) in the trap pulled versus an anti-DIG bead (3.4 μm) in the pipette

Growth and characterization of CNT–TiO₂ heterostructures

• Yucheng Zhang,
• Ivo Utke,
• Johann Michler,
• Gabriele Ilari,
• Marta D. Rossell and
• Rolf Erni

Beilstein J. Nanotechnol. 2014, 5, 946–955, doi:10.3762/bjnano.5.108

• on large area polystyrene bead arrays [31]. After removing the polystyrene, a transparent, electrically conductive, hollow sphere array was obtained on top of which an urchin-inspired nanobuilding block design of a solar cell with n-type ZnO nanowires could be realized by using electrochemical

3D nano-structures for laser nano-manipulation

• Gediminas Seniutinas,
• Lorenzo Rosa,
• Gediminas Gervinskas,
• Etienne Brasselet and
• Saulius Juodkazis

Beilstein J. Nanotechnol. 2013, 4, 534–541, doi:10.3762/bjnano.4.62

• domain, to gather evidence of extraordinary transmission. For the force calculation, the trapped object (a polystyrene bead) was introduced in the total-field region, and surrounded by a 3D monitor recording the vectorial E- and H-fields, discriminating the object volume by the refractive index change

• are repelled from high intensity regions, while dielectric nano-particles will be attracted. Force mapping The force mapping was calculated by using the Lorentz force formalism (from section “Background: Lorentz force”) on a polystyrene-bead probe (n = 1.504) of diameter d with the 3D-FDTD method. In

• . Incident light intensity |E0|2 = 1; propagation in negative z-direction. Arrow plot of the trapping force for plane-wave illumination in medium-to-substrate direction (as in Figure 4) at 760 nm wavelength for a 50-nm diameter polystyrene bead in (a) water and (b) air. The conical Au-well profile is

Aerosol assisted fabrication of two dimensional ZnO island arrays and honeycomb patterns with identical lattice structures

• Mitsuhiro Numata and
• Yoshihiro Koide

Beilstein J. Nanotechnol. 2010, 1, 71–74, doi:10.3762/bjnano.1.9

• with contrasting fill fractions of the materials. Keywords: aerosol; photonic crystal; polystyrene bead; TiO2; ZnO; Findings The wide bandgap (3.37 eV) and large exciton-binding energy (60 meV) of ZnO renders it a promising candidate for inexpensive transparent conductors and for optical applications

• identical spatial pitch but different fill fractions of periodic ZnO nanocrystal clusters on a 1.5 cm × 1.5 cm n-type (100) silicon wafer. In a newly developed m-CVD technique, an aqueous solution of a water soluble titanium complex (TiO2 precursor) [24][25] was delivered as aerosol on a polystyrene bead

• of each hemisphere was about 1.36 μm (estimated height of 430 nm). These observations suggest that the TiO2 precursor droplet, which has a larger diameter than a polystyrene bead, wet the upper hemisphere and stream down the surfaces and then build up at around the pivot. As the volume of the