Corrigendum to “Fluorescent molecularly imprinted nanogels for the detection of anticancer drugs in human plasma” [Biosens. Bioelectron. 86 (2016) 913–919]

Pellizzoni, Elena; Tommasini, Martina; Marangon, Elena; Rizzolio, Flavio; Saito, Gabriele; Benedetti, Fabio; Toffoli, Giuseppe; Resmini, Marina; Berti, Federico

doi:10.1016/j.bios.2017.03.042

Cited by 1 publication

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“…Three coumarin monomers bearing either one or two terminal acrylate groups were synthetized according to literature ( Scheme a–c). [ 19 ] 2‐oxo‐2H‐chromen‐7yl acrylate (CoumA) was obtained by esterification of 7‐hydroxycoumarin with acryloylchloride in the presence of triethylamine. Tetrahydrofuran was used as solvent, which was stabilized with butylated hydroxytoluene to avoid premature polymerization of the acrylate groups.…”

Section: Resultsmentioning

confidence: 99%

Wavelength Selective Multi‐Material 3D Printing of Soft Active Devices Using Orthogonal Photoreactions

Rossegger

Strasser

Höller

et al. 2022

Macromol. Rapid Commun.

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Orthogonal photoreactions provide a unique way to locally and independently control (thermo)mechanical properties and functionality of polymer networks simply by choice of the wavelength. Herein, a library of acrylate functional coumarin monomers is synthesized, which are cured by sequence‐dependent wavelength orthogonality. In the presence of a long wavelength absorbing photoinitiator, the monomers undergo rapid curing by visible light induced radical chain growth polymerization. Subsequent irradiation with light in the UV‐A region selectively initiates the [2+2] photocycloaddition of the coumarin chromophores, which is confirmed by FTIR and UV–vis experiments. Through a well‐targeted design, acrylate‐based and thiol‐acrylate resin formulations are prepared, whose fast curing rate, low viscosity, and prolonged storage stability enable the one‐step fabrication of multi‐material structures by digital light processing (DLP) 3D printing. By using a dual‐wavelength printer, which operates at two different wavelengths (405 and 365 nm), objects comprising soft (ε = 22%, σ = 7.5 MPa) and stiff (ε = 2%, σ = 8.3 MPa) domains are printed with a single resin vat. Along with tensile properties, the wavelength selective change in the network structure features a local control of the glass transition temperature (ΔTg = 17 °C) in the 3D‐printed objects. Soft active devices are fabricated by dual‐wavelength DLP 3D printing, with distinct domains having a higher Tg and the local programming of multi shapes is demonstrated.

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Section: Resultsmentioning

confidence: 99%