A process for selective surface modification of an object comprising at least one SiN surface and at least one silicon oxide (SiO) surface, the process comprising the steps of a. Treating the object with hydrogen fluoride (HF) solution to obtain an etched object; b. Treating the etched object with a polymer solution comprising a polymer having a net negative charge to obtain an object having a polymer coating on the at least one SiN surface; c. Optionally irradiating the object having a polymer coating on the at least one SiN surface with ultraviolet light to obtain an object having a crosslinked polymer coating on the at least one SiN surface; d. Optionally treating the object having a (optionally crosslinked) polymer coating on the at least one SiN surface with a silane to obtain an object with a silane coating on the at least one SiO surface.
4. at least partially irradiating the assembly with light to crosslink the liquid coating to bond the substrates and to obtain a crosslinked coating inside the microfluidic structure.
B01L 3/00 - Containers or dishes for laboratory use, e.g. laboratory glasswareDroppers
B32B 3/30 - Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shapeLayered products comprising a layer having particular features of form characterised by a particular shape of the outline of the cross-section of a continuous layerLayered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shapeLayered products comprising a layer having particular features of form characterised by a layer with cavities or internal voids characterised by a layer formed with recesses or projections, e.g. grooved, ribbed
B32B 17/10 - Layered products essentially comprising sheet glass, or fibres of glass, slag or the like comprising glass as the main or only constituent of a layer, next to another layer of a specific substance of synthetic resin
B32B 27/06 - Layered products essentially comprising synthetic resin as the main or only constituent of a layer next to another layer of a specific substance
B32B 37/12 - Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by using adhesives
B32B 37/24 - Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the properties of the layers with at least one layer not being coherent before laminating, e.g. made up from granular material sprinkled onto a substrate
C09D 4/00 - Coating compositions, e.g. paints, varnishes or lacquers, based on organic non-macromolecular compounds having at least one polymerisable carbon-to-carbon unsaturated bond
The invention relates to a process for manufacturing a microfluidic device comprising: a) providing a first substrate having a first surface comprising a first flat part and a first concavity and a second substrate having a second surface comprising a second flat part and an optional second concavity, b) coating at least one of the first surface and the second surface with a coating composition comprising i) a monomer A comprising one moiety represented by CH2=CR1R2 wherein R1 represents H or CH3 and R2 represents -COO- or -CONH-, and a non-ionic hydrophilic moiety; ii) a monomer B comprising two or more moieties represented by CH2=CR1R2 wherein R1 represents H or CH3 and R2 represents -COO- or - CONH-, and a non-ionic hydrophilic moiety; iii) optionally a photoinitiator; iv) optionally a diluent; c) evaporating the diluent if present, and forming a liquid coating; d) contacting the substrates so as to obtain an assembly in which the first flat part and the second flat part contact each other to define a microfluidic structure between the first and the second surfaces, wherein the microfluidic structure comprises the first concavity and the optional second concavity; and e) at least partially irradiating the assembly with light having a wavelength between 200 and 800 nm to crosslink the liquid coating to bond the first flat part and the second flat part and obtain a crosslinked coating on at least the first concavity. The invention further relates to a microfluidic device having two parts bonded together with a crosslinked composition and a channel which comprises at least partly said crosslinked composition as a coating.
B32B 37/00 - Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
B32B 27/08 - Layered products essentially comprising synthetic resin as the main or only constituent of a layer next to another layer of a specific substance of synthetic resin of a different kind
B32B 27/28 - Layered products essentially comprising synthetic resin comprising copolymers of synthetic resins not wholly covered by any one of the following subgroups
A process for the modification of a surface of a solid material having the step of contacting the surface with a surface-modifying composition under irradiation with light of a wavelength in the range of 200 to 800 nm, optionally in the presence of a photoinitiator, wherein the solid material is chosen from the group consisting of polyesters, polyethers, polycarbonates, polyketones polyamides, polyurethanes, (meth)acrylate and (meth)acrylamide polymers and polyetherimides and wherein the surface modifying composition includes at least a hydrosilane.
G03F 7/028 - Non-macromolecular photopolymerisable compounds having carbon-to-carbon double bonds, e.g. ethylenic compounds with photosensitivity-increasing substances, e.g. photoinitiators
A process for the modification of a surface of a solid material, having the step of contacting the surface with a surface-modifying composition under irradiation with light of a wavelength in the range of 200 to 800 nm optionally in the presence of a photoinitiator, wherein the solid material has surface groups selected from C—OH, Si—OH, C═O and C—O—C groups and wherein the surface-modifying composition has at least a hydrosilane and at least one reactive compound (A) other than the hydrosilane, wherein the reactive compound (A) has at least two functional groups selected from (meth)acrylate, (meth)acrylamide, hydroxyl, carboxylic acid, alkene, alkyne and epoxy, and wherein the amount of hydrosilane in the composition ranges between 0.5 and 99 vol %, and wherein the vol % is determined at 20° C. relative to the total of the surface modifying composition. A solid material having a partial surface modification layer.
C03C 17/30 - Surface treatment of glass, e.g. of devitrified glass, not in the form of fibres or filaments, by coating with organic material with silicon-containing compounds
C09D 4/00 - Coating compositions, e.g. paints, varnishes or lacquers, based on organic non-macromolecular compounds having at least one polymerisable carbon-to-carbon unsaturated bond
C08J 7/043 - Improving the adhesiveness of the coatings per se, e.g. forming primers
The invention relates to a process for the modification of a surface of a solid material, comprising the step of contacting the surface with a surface-modifying composition under irradiation with light of a wavelength in the range of 200 to 800 nm, optionally in the presence of a photoinitiator, wherein the solid material is chosen from the group consisting of polyesters, polyethers, polycarbonates, polyketones polyamides, polyurethanes, (meth)acrylate and (meth)acrylamide polymers and polyetherimides and wherein the surface modifying composition comprises at least a hydrosilane.
The invention relates to a process for the modification of a surface of a solid material, comprising the step of contacting the surface with a surface-modifying composition under irradiation with light of a wavelength in the range of 200 to 800 nm optionally in the presence of a photoinitiator, wherein the solid material has surface groups selected from C-OH, Si-OH, C=O and C-O-C groups and wherein the surface-modifying composition comprises at least a hydrosilane and at least one reactive compound (A) other than the hydrosilane, wherein the reactive compound (A) comprises at least two functional groups selected from (meth)acrylate, (meth)acrylamide, hydroxyl, carboxylic acid, alkene, alkyne and epoxy, and wherein the amount of hydrosilane in the composition ranges between 0.5 and 99 vol%, and wherein the vol% is determined at 20 °C relative to the total of the surface modifying composition. The invention further relates to a solid material having a partial surface modification layer.
C03C 17/30 - Surface treatment of glass, e.g. of devitrified glass, not in the form of fibres or filaments, by coating with organic material with silicon-containing compounds
C03C 23/00 - Other surface treatment of glass not in the form of fibres or filaments
C09D 1/00 - Coating compositions, e.g. paints, varnishes or lacquers, based on inorganic substances
C09D 4/00 - Coating compositions, e.g. paints, varnishes or lacquers, based on organic non-macromolecular compounds having at least one polymerisable carbon-to-carbon unsaturated bond
The invention relates to a process for the modification of a surface of a solid material, comprising the step of contacting the surface with a surface-modifying compound under irradiation with light of a wavelength in the range of 200 to 800 nm optionally in the presence of a photoinitiator, wherein a) the surface has Si-OH groups, C-OH groups or epoxy groups and the surface-modifying compound is a hydrosilane, or b) the surface has O-Si-H groups and the surface-modifying compound is a silanol or an alcohol.
C03C 23/00 - Other surface treatment of glass not in the form of fibres or filaments
C03C 17/28 - Surface treatment of glass, e.g. of devitrified glass, not in the form of fibres or filaments, by coating with organic material
C03C 17/30 - Surface treatment of glass, e.g. of devitrified glass, not in the form of fibres or filaments, by coating with organic material with silicon-containing compounds
C08J 3/28 - Treatment by wave energy or particle radiation
C08F 261/04 - Macromolecular compounds obtained by polymerising monomers on to polymers of oxygen-containing monomers as defined in group on to polymers of unsaturated alcohols on to polymers of vinyl alcohol
3, but also metals including alloys such as stainless steel with alkenes or alkynes under mild conditions by photochemical reaction. The process is very well suited to form patterned modified surfaces which are of use for example in microelectronics, biosensing and catalysis.
B32B 17/08 - Layered products essentially comprising sheet glass, or fibres of glass, slag or the like comprising glass as the main or only constituent of a layer, next to another layer of a specific substance of cellulosic plastic substance
C04B 41/00 - After-treatment of mortars, concrete, artificial stone or ceramicsTreatment of natural stone
C04B 41/46 - Coating or impregnating with organic materials
C04B 41/82 - Coating or impregnating with organic materials
C23C 22/02 - Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using non-aqueous solutions
G03F 7/027 - Non-macromolecular photopolymerisable compounds having carbon-to-carbon double bonds, e.g. ethylenic compounds
B05D 1/18 - Processes for applying liquids or other fluent materials performed by dipping
B05D 3/04 - Pretreatment of surfaces to which liquids or other fluent materials are to be appliedAfter-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials by exposure to gases
B05D 3/06 - Pretreatment of surfaces to which liquids or other fluent materials are to be appliedAfter-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials by exposure to radiation
C04B 111/27 - Water resistance, i.e. waterproof or water-repellent materials
50 alkyne, the alkene and/or alkyne being optionally substituted and/or being optionally interrupted by one or more heteroatoms. The present invention further relates to articles or substrates comprising the functionalized Si/Ge-surface and the use of the functionalised Si/Ge-surface to prevent or to reduce adsorption of a biomolecule to an article or a substrate.
H01L 21/31 - Treatment of semiconductor bodies using processes or apparatus not provided for in groups to form insulating layers thereon, e.g. for masking or by using photolithographic techniquesAfter-treatment of these layersSelection of materials for these layers
H01L 21/469 - Treatment of semiconductor bodies using processes or apparatus not provided for in groups to change their surface-physical characteristics or shape, e.g. etching, polishing, cutting to form insulating layers thereon, e.g. for masking or by using photolithographic techniquesAfter-treatment of these layers
patents
