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Mostrando ítems 1-10 de 17
Artículo
Sodium Lauryl Sulfate-Conjugated Cationic Gemini-Surfactant-Capped Gold Nanoparticles as Model System for Biomolecule Recognition
(Multidisciplinary Digital Publishing Institute (MDPI), 2023)
Surfactant-based nanostructures are promising materials for designing novel colorimetric biosensors based on aggregation/disaggregation phenomena. In this work, a colorimetric sensor based on the plasmonic shift of ...
Artículo
Citrate and Polyvinylpyrrolidone Stabilized Silver Nanoparticles as Selective Colorimetric Sensor for Aluminum (III) Ions in Real Water Samples
(MDPI, 2020)
The use of silver nanoparticles stabilized with citrate and polyvinylpyrrolidone as a sensor for aluminum ions determination is proposed in this paper. These non-functionalized and specific nanoparticles provide a highly ...
Artículo
Gold Nanosystems Covered with Doxorubicin/DNA Complexes: A Therapeutic Target for Prostate and Liver Cancer
(Multidisciplinary Digital Publishing Institute (MDPI), 2022)
Different gold nanosystems covered with DNA and doxorubicin (Doxo) were designed and synthesized for cancer therapy, starting from Au@16-Ph-16 cationic nanoparticles and DNA–Doxo complexes prepared under saturation conditions. ...
Artículo
Synergistic Antibacterial Effects of Amoxicillin and Gold Nanoparticles: A Therapeutic Option to Combat Antibiotic Resistance
(Multidisciplinary Digital Publishing Institute (MDPI), 2023)
Compacted Au@16-mph-16/DNA-AMOX (NSi) nanosystems were prepared from amoxicillin (AMOX) and precursor Au@16-mph-16 gold nanoparticles (Ni) using a Deoxyribonucleic acid (DNA) biopolymer as a glue. The synthesized nanocarrier ...
Artículo
Colorimetric, naked-eye detection of lysozyme in human urine with gold nanoparticles
(Multidisciplinary Digital Publishing Institute (MDPI), 2021)
The stabilizing effect of lysozymes to salt addition over a gold colloid are exploited in order to detect lysozymes in human urine samples. The present research is aimed at the development of a fast, naked-eye detection ...
Artículo
Noncovalent interactions of tiopronin-protected gold nanoparticles with DNA: two methods to quantify free energy of binding
(2014)
The binding of gold nanoparticles capped with N-(2-mercaptopropionyl)glycine (Au@tiopronin) with double-stranded DNA has been investigated and quantified in terms of free energies by using two different approaches. The ...
Artículo
Biocompatible DNA/5-fluorouracil-gemini surfactant-functionalized gold nanoparticles as promising vectors in lung cancer therapy
(Multidisciplinary Digital Publishing Institute (MDPI), 2021)
The design and preparation of novel nanocarriers to transport cancer drugs for chemotherapy purposes is an important line of research in the medical field. A new 5-fluorouracil (5-Fu) transporter was designed based on the ...
Artículo
Lysozyme–aunps interactions: Determination of binding free energy
(Multidisciplinary Digital Publishing Institute (MDPI), 2021)
Investigation and optimization of lysozyme (Lys) adsorption onto gold nanoparticles, AuNPs, were carried out. The purpose of this study is to determine the magnitude of the AuNPs– lysozyme interaction in aqueous media by ...
Artículo
Understanding gold nanoparticles interactions with chitosan: Crosslinking agents as novel strategy for direct covalent immobilization of biomolecules on metallic surfaces
(Elsevier, 2020-03-15)
The development of a new method for covalent immobilization of biomolecules on the surface of bare gold nanoparticles (AuNPs) by using crosslinking agents in one step is presented. A very compatible biopolymer such ...
Artículo
DNA conformational changes induced by cationic gemini surfactants: the key to switching DNA compact structures into elongated forms
(Royal Society of Chemistry, 2015)
The DNA conformational changes induced by different members of the N,N0-bis(dimethyldodecyl)-a-ualkanediammonium dibromide series (m-s-m, m ¼ 12, s ¼ 3 and 6) and the analogous series of hexadecyl gemini surfactants (m ...