José Pomposo - Academia.edu (original) (raw)
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University of the Basque Country, Euskal Herriko Unibertsitatea
Université Montpellier 2 - Sciences et Techniques du Languedoc
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Papers by José Pomposo
ACS Omega, 2018
Single-chain nanoparticles (SCNPs) are ultrasmall soft nanomaterials constructed via intrachain c... more Single-chain nanoparticles (SCNPs) are ultrasmall soft nanomaterials constructed via intrachain cross-linking of individual precursor polymer chains, with promising prospects for nanomedicine, catalysis, and sensing, among other different fields. SCNPs are versatile building blocks for the construction of new fluorescent probes with ultrasmall size, higher brightness, and better photostability than previous particle-based systems. Herein, we report on a new, fast, and efficient method to produce SCNPs with intense fluorescence emission in solution which is based on the photoactivation of appropriate aggregation-induced emission (AIE) cross-linking molecules containing azide functional groups. Remarkably, the presence of the azide moiety that can be transformed to highly reactive nitrene species upon UV irradiationwas found to be essential for the SCNPs to display intense fluorescence emission. We attribute the fluorescence properties of the SCNPs to the immobilization of the initially nonfluorescent AIE molecules via intrachain cross-linking upon photoactivation. Such cross-linking-induced immobilization process activates the AIE mechanism and, hence, leads to fluorescent SCNPs in both solution and solid state.
Synthetic metals, 2006
Chemically synthesized polypyrroles of low (σ<75S/cm), medium (75<σ<200S/cm) and high (σ... more Chemically synthesized polypyrroles of low (σ<75S/cm), medium (75<σ<200S/cm) and high (σ>200S/cm) electrical conductivity (σ) with the same dopant and degree of doping have been investigated by means of Wide Angle X-ray Scattering (WAXS), 13C Cross Polarized Magic Angle Spinning Nuclear Magnetic Resonance (13C CP/MAS NMR) spectroscopy and Fourier Transform Infrared (FTIR) Spectroscopy to establish structure–conductivity relationships useful for industrial applications.
ACS Omega, 2018
Single-chain nanoparticles (SCNPs) are ultrasmall soft nanomaterials constructed via intrachain c... more Single-chain nanoparticles (SCNPs) are ultrasmall soft nanomaterials constructed via intrachain cross-linking of individual precursor polymer chains, with promising prospects for nanomedicine, catalysis, and sensing, among other different fields. SCNPs are versatile building blocks for the construction of new fluorescent probes with ultrasmall size, higher brightness, and better photostability than previous particle-based systems. Herein, we report on a new, fast, and efficient method to produce SCNPs with intense fluorescence emission in solution which is based on the photoactivation of appropriate aggregation-induced emission (AIE) cross-linking molecules containing azide functional groups. Remarkably, the presence of the azide moiety that can be transformed to highly reactive nitrene species upon UV irradiationwas found to be essential for the SCNPs to display intense fluorescence emission. We attribute the fluorescence properties of the SCNPs to the immobilization of the initially nonfluorescent AIE molecules via intrachain cross-linking upon photoactivation. Such cross-linking-induced immobilization process activates the AIE mechanism and, hence, leads to fluorescent SCNPs in both solution and solid state.
Synthetic metals, 2006
Chemically synthesized polypyrroles of low (σ<75S/cm), medium (75<σ<200S/cm) and high (σ... more Chemically synthesized polypyrroles of low (σ<75S/cm), medium (75<σ<200S/cm) and high (σ>200S/cm) electrical conductivity (σ) with the same dopant and degree of doping have been investigated by means of Wide Angle X-ray Scattering (WAXS), 13C Cross Polarized Magic Angle Spinning Nuclear Magnetic Resonance (13C CP/MAS NMR) spectroscopy and Fourier Transform Infrared (FTIR) Spectroscopy to establish structure–conductivity relationships useful for industrial applications.