Search results

Search for "citric acid" in Full Text gives 52 result(s) in Beilstein Journal of Nanotechnology.

Glassy carbon electrodes modified with multiwalled carbon nanotubes for the determination of ascorbic acid by square-wave voltammetry

  • Sushil Kumar and
  • Victoria Vicente-Beckett

Beilstein J. Nanotechnol. 2012, 3, 388–396, doi:10.3762/bjnano.3.45

Graphical Abstract
  • ) analysed by HPLC were excellent (95–101%). Fresh fruit juices may contain a number of organic acids (e.g., citric acid) and sugars (e.g., glucose, fructose and sucrose), which could cause potential interferences. However no such interferences were evident in the analyses. Comparison of the SWV method with
PDF
Album
Full Research Paper
Published 10 May 2012

Manipulation of gold colloidal nanoparticles with atomic force microscopy in dynamic mode: influence of particle–substrate chemistry and morphology, and of operating conditions

  • Samer Darwich,
  • Karine Mougin,
  • Akshata Rao,
  • Enrico Gnecco,
  • Shrisudersan Jayaraman and
  • Hamidou Haidara

Beilstein J. Nanotechnol. 2011, 2, 85–98, doi:10.3762/bjnano.2.10

Graphical Abstract
  • is essentially affected by electrostatic interactions arising from residues from the synthesis (citric acid) that may be adsorbed on the particles. It is thus normal, in the absence of both physical contact and notable intermolecular forces between the particles, that their mobility is independent of
  • nanogold particles, HAuCl4·3H2O supplied by ABCR, Karlsruhe, Germany. The suspension was stabilized with citric acid trisodium salt (Aldrich), which, by reducing HAuCl4, imparts the negative charge of the citrate ions to the gold nano-particle surface [27][28]. The average size of these nanogold particles
  • reduce the citric acid concentration. The nanoparticles were then purified from excess surfactant and other reactants by dialysis for one week. Finally, the dialyzed solution was centrifuged and particles were re-dispersed in tetrahydrofuran. 300 µL of the appropriate thiol (methyl- or hydroxyl
PDF
Album
Full Research Paper
Published 04 Feb 2011
Other Beilstein-Institut Open Science Activities