Tunable Multifunctional Mesoporous Silica Microdots Arrays by Combination of Inkjet Printing, EISA, and Click Chemistry
摘要:
A novel technique combining inkjet printing (IJP), evaporation-induced self-assembly (EISA), and click chemistry is implemented for elaborating mesoporous silica-based multifunctional microdots arrays. The microdots are in situ azide-functionalized with (3-azidopropyl)triethoxysilane (AzPTES). AzPTES is directly added to the initial sol before IJP and co-condenses with the silica precursor (TEOS) during the evaporation-induced self-assembly (EISA) of micelles on the substrate. After extracting the surfactants to release the porosity, model alkynes, namely propargyl alcohol, methyl pent-4-ynoate, ethynylferrocene, and N-propargyl-4-amino-1,8-naphthalimide, are grafted by the azide-alkyne CuAAC click reaction. The demonstration is established that the click reaction is nearly quantitative and occurs in the whole volume of the microdots attesting the accessibility of the azide groups. By integrating an alkyne-containing silylated precursor in a similar route, azide-containing functional groups are anchored in the microdots by click reaction. A demonstration of the multifunctionalization of such microdots arrays is achieved by reacting clickable dyes on alternate alkyne- and azide-functionalized lines of microdots, as evidenced by confocal fluorescence microscopy. Such multifunctional mesoporous silica microdots arrays offer promising perspectives for biosensing applications.
NOVEL ORALLY BIOAVAILABLE BREATHING CONTROL MODULATING COMPOUNDS, AND METHODS OF USING SAME
申请人:Galleon Pharmaceuticals, Inc.
公开号:EP2920155A2
公开(公告)日:2015-09-23
[EN] NOVEL ORALLY BIOAVAILABLE BREATHING CONTROL MODULATING COMPOUNDS, AND METHODS OF USING SAME<br/>[FR] NOUVEAUX COMPOSÉS DE MODULATION DE RÉGULATION DE LA RESPIRATION ORALEMENT BIODISPONIBLES ET LEURS PROCÉDÉS D'UTILISATION
申请人:GALLEON PHARMACEUTICALS INC
公开号:WO2014078575A2
公开(公告)日:2014-05-22
The present invention includes compositions that are useful in the prevention and/or treatment of breathing control diseases or disorders in a subject in need thereof. The present invention also includes a method of preventing and/or treating a respiratory disease or disorder in a subject in need thereof, comprising administering to the subject a therapeutically effective amount of a composition of the invention. The present invention further includes a method of preventing destabilization or stabilizing breathing rhythm in a subject in need thereof, comprising administering to the subject a therapeutically effective amount of a composition of the invention.
Tunable Multifunctional Mesoporous Silica Microdots Arrays by Combination of Inkjet Printing, EISA, and Click Chemistry
作者:Olivia De Los Cobos、Bruno Fousseret、Martine Lejeune、Fabrice Rossignol、Maggy Dutreilh-Colas、Claire Carrion、Cédric Boissière、François Ribot、Clément Sanchez、Xavier Cattoën、Michel Wong Chi Man、Jean-Olivier Durand
DOI:10.1021/cm3022769
日期:2012.11.27
A novel technique combining inkjet printing (IJP), evaporation-induced self-assembly (EISA), and click chemistry is implemented for elaborating mesoporous silica-based multifunctional microdots arrays. The microdots are in situ azide-functionalized with (3-azidopropyl)triethoxysilane (AzPTES). AzPTES is directly added to the initial sol before IJP and co-condenses with the silica precursor (TEOS) during the evaporation-induced self-assembly (EISA) of micelles on the substrate. After extracting the surfactants to release the porosity, model alkynes, namely propargyl alcohol, methyl pent-4-ynoate, ethynylferrocene, and N-propargyl-4-amino-1,8-naphthalimide, are grafted by the azide-alkyne CuAAC click reaction. The demonstration is established that the click reaction is nearly quantitative and occurs in the whole volume of the microdots attesting the accessibility of the azide groups. By integrating an alkyne-containing silylated precursor in a similar route, azide-containing functional groups are anchored in the microdots by click reaction. A demonstration of the multifunctionalization of such microdots arrays is achieved by reacting clickable dyes on alternate alkyne- and azide-functionalized lines of microdots, as evidenced by confocal fluorescence microscopy. Such multifunctional mesoporous silica microdots arrays offer promising perspectives for biosensing applications.