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1.
Nanochemistry and Materials : a Laboratory Manual
Janja Stergar, Irena Ban, 2022, higher education exercise book

Abstract: The publication contains instructions for laboratory work in the subject Nanochemistry and Materials. Students are introduced to the experimental principles of nanochemistry in the laboratory. They learn about various synthesis and characterization methods, in conjunction with magnetic nanoparticles useful in biomedical and engineering applications. They learn about the safety of nanoparticles and their effects, impact on technology, and contribution to improving life on many levels when used properly. The instructions are written in English as they are intended for foreign students who choose the mentioned subject.
Keywords: magnetic nanoparticles, coprecipitation, microemulsion technique, X-Ray powder diffraction, dynamic light scattering
Published in DKUM: 29.08.2022; Views: 557; Downloads: 69
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2.
Effect of base sequence on G-wire formation in solution
Lea Spindler, Martin Rigler, Irena Drevenšek Olenik, Mateus Webba da Silva, Nason Ma'ani Hessari, 2010, original scientific article

Abstract: The formation and dimensions of G-wires by different short G-rich DNA sequences in solution were investigated by dynamic light scattering (DLS) and polyacrilamide gel electrophoresis (PAGE). To explore the basic principles of wire formation, we studied the effects of base sequence, method of preparation, temperature, and oligonucleotide concentration. Both DLS and PAGE show that thermal annealing induces much less macromolecular self-assembly than dialysis. The degree of assembly and consequently length of G-wires (5-6 nm) are well resolved by both methods for DNA sequences with intermediate length, while some discrepancies appear for the shortest and longest sequences. As expected, the longest DNA sequence gives the longest macromolecular aggregates with a length of about 11 nm as estimated by DLS. The quadruplex topologies show no concentration dependence in the investigated DNA concentration range (0.1 mM–0.4 mM) and no structural change upon heating.
Keywords: DNA, dynamic light scattering, DLS, polyacrylamide gel electrophoresis, PAGE, genetics
Published in DKUM: 14.06.2017; Views: 1650; Downloads: 359
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