Listar por tema "Nanoparticles"
Mostrando ítems 1-15 de 15
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Activated carbons as catalytic support for Cu nanoparticles
(2018-05-30)There are a wide range of catalytic applications for Cu-based nanoparticles materials, since Cu is an abundant and inexpensive metal and Cu nanoparticles possess unusual electrical, thermal and optical properties. The ... -
Dendrimers-modified solid supports: towards nanostructures materials for clinical diagnostic
(2013-09-25)The design and synthesis of new materials for biomedical applications is a high-priority research topic in a number of biomedical areas. The rapid development of nanotechnology over the past few decades has created wide ... -
Detection of different species of p-aminothiophenol on silver nanoparticles by Surface-Enhanced Raman Spectroscopy (SERS)
(2018-04-06)In the present work we have analyzed the experimental and theoretical SERS spectra of the organic compound p-aminothiophenol (pATP, HS-Ph-NH2) recorded on silver nanoparticles. DFT calculations have been performed to support ... -
Heterogeneous catalysis for the synthesis of carbon dots (CDs) from biomass source
(2022)It has been evaluated the capacity of several phosphate-based acid catalysts of transition metals such as vanadium and niobium in the synthesis of carbon dots (CDs) via a hydrothermal process. For this purpose, two sources ... -
Highly effective SERS nanopattern substrate. The enhancement is demonstrated using thiophenol as a molecular probe
(2014-07-31)The number of different types of Surface-enhanced Raman Scattering (SERS) substrates available for experimentation is increasing at high speed. New alternatives are introduced and explored every year in the literature ... -
Hybrid pH-Responsive Au@p4VP Microgels as Platform for Selective SERS Analysis
(2017-09-21)We present the synthesis a of pH-responsive core@shell hybrid microgel. This colloidal system is formed by a 55 nm Au core individually covered by a polymeric pH-sensitive shell of poly(4-vinylpyridine), that we denote as ... -
Hyperspectral LIBS imaging of single-optically trapped particles
(2020-07-29)The interaction between discrete particles with laser-induced plasma presents some complexities that directly affects the analysis of bulk aerosols by LIBS. Single-particle analysis is not exempt of this kind of phenomena ... -
Novel approaches for osteosarcoma treatment: drug combination, nanotechnology and cell therapy
(UMA Editorial, 2023-03-03)Osteosarcoma is one of the most common malignant tumours of bone, primarily affecting children and adolescents. Although the implementation of chemotherapy and radiotherapy has substantially improved survival of patients ... -
Sensing Bisphenol A by Means of Surface-Enhanced Raman Spectroscopy and DFT Calculations to Elucidate the Enhancement Mechanism That Dominates the Spectrum
(IOAP-MDPI, 2023-01-20)Surface-Enhanced Raman Spectroscopy (SERS) was employed as a spectroscopic tool to detect Bisphenol A (BPA), a building block in polycarbonate and epoxy resins or an additive in other polymer plastics like PVC, which has ... -
SERS study of different species of p-aminothiophenol adsorbed on silver nanoparticles
(2018-06-01)In the present work we have focused the discussion on the experimental and theoretical SERS spectra of the organic compound pATP recorded on silver colloids. The huge SERS of pATP on metal substrates is significantly ... -
Silver Nanoparticle Arrays onto Glass Substrates Obtained by Solid-State Thermal Dewetting: A Morphological, Structural and Surface Chemical Study
(IOAP-MPDI, 2022-02-11)Silver nanoparticles (NPs) on glass substrates were obtained by a solid-state thermal dewetting (SSD) process using vacuum-evaporated-silver precursor layers. An exhaustive investigation of the morphological, structural, ... -
Synthesis of bioactive compounds. Studies of their attachment to nanoparticles
(2017-07-20)The 1-aryl tetrahydroisoquinolines have attracted great attention in medicinal chemistry due to their biological activity. These compounds present antitumor, anti-HIV and antibacterial activities. Several analogues of ... -
Thermophysical and flow properties of coconut oil with silica fumed nanoparticles
(2019-10-02)This work is concerned with the rheological and thermal study of silica fumed dispersed in coconut oil. The dispersed phase behave as a non newtonian fluid during the phase change. The addition of nanoparticles complicates ... -
Ultrafast Laser Excitation Improves LIBS Performance for the Analysis of Optically Trapped Single Nanoparticles Owing to Characteristic Interaction Mechanisms
(ACS, 2023-09-20)Owing to the exceedingly small mass involved, complete elemental characterization of single nanoparticles demands a highly precise control of signal background and noise sources. LIBS has demonstrated remarkable merits for ... -
Ultrafast laser excitation in atmospheric pressure optical traps for studying attogram mass nanoparticles.
(2023)Owing to the exceedingly small mass involved, complete elemental characterization of single nanoparticles demands a highly precise control of signal background and noise sources. LIBS has demonstrated remarkable merits for ...