摘要:
A microfluidic arrangement for manipulating fluids is provided. The microfluidic arrangement comprises a substrate, a first fluid and a second fluid, which is immiscible with the first fluid. The first fluid is arranged to be at least partially covered by the second fluid. The first fluid is arranged in a desired shape on an unpatterned surface of the substrate. The first fluid is retained in said shape by a fluid interface between the first and second fluids. A microfluidic arrangement comprising an array of drops is also provided. The microfluidic arrangement comprises a substrate, a first fluid and a second fluid, which is immiscible with the first fluid. The first fluid is arranged to be at least partially covered by the second fluid. The first fluid is arranged to be covered at least partially by the second fluid. The first fluid is arranged in a given array of drops on an unpatterned surface of the substrate. Each drop cross section area having a (height:width) aspect ratio of (1:2) or less. A method of fabricating a microfluidic arrangement for manipulating fluids is also provided. The method comprises arranging a first fluid on an unpatterned surface of a substrate in a desired shape. The method also comprises arranging a second fluid, which is immiscible with the first fluid, to cover the first fluid at least partially. The first fluid is retained in said shape by a fluid interface between the first and second fluids. The method also comprises drying the first fluid to form a residue in said shape on the substrate.
摘要:
Sample Slides for Laser Desorption Ionisation (LDI) Mass Spectrometry and Optical Microscopy Indium tin oxide coated slides, their synthesis and use in imaging mass spectrometry are provided in the present application. The methods of synthesis described herein may be used to prepare indium tin oxide thin films on glass substrates with the required nanometric surface structure for use in the matrix-free imaging of metabolites and small-molecule drugs, without affecting the transparency required for optical microscopy. The custom-made slides were tested as potential substrates for imaging mass spectrometry by measuring a range of different properties, including elemental composition, topology, optical and electrical properties and hydrophobicity and comparing them with commercially available slides. In a preferred embodiment, the sample slide (ITO4) has an indium tin oxide surface layer between 25-35 nm in thickness, a surface roughness of about 1.2 nm, a resistivity of between 1.5-1.9 microOhrn/cm2 and an optical transmission at 355nm of greater than 60%.
摘要:
A method of depositing at least one substance on a target substrate (1) comprises the step of operating at least one droplet dispenser (21) such that droplets (2) including the at least one substance are deposited on the target substrate (1), wherein the target substrate (1) has a substrate surface including spatially delimited receptacle sections (3) being arranged for accommodating the droplets (2), and the at least one droplet dispenser (21) is controlled in dependency on the locations of the receptacle sections (3) such that the droplets (2) are directed onto the receptacle sections (3). Furthermore, a dispenser device (100) for depositing at least one substance on a target substrate (1) is described.
摘要:
Eine Vorrichtung (10, 10') für die lichtspektroskopische Analyse einer oder mehrerer flüssiger Proben umfasst eine Lichtquelle (11) zur Erzeugung und Ausstrahlung von Licht entlang eines einzigen Lichtwegs (100), einen ersten Probenhalter (12) mit einer Aufnahmestelle (20) für kleinste Mengen einer ersten Probe, welcher so im Lichtweg (100) angeordnet ist, dass die erste flüssige Probe vom Licht durchstrahlt wird, einen zweiten Probenhalter (13) für eine zweite Probe, welcher so im Lichtweg (100) angeordnet ist, dass die zweite flüssige Probe vom Licht durchstrahlt wird, und einen Detektor (14) zur Erfassung des von den Probenhaltern (12, 13) kommenden Lichts.
摘要:
The invention relates to a microarray structure including a substrate material layer, a continuous three-dimensional (3D) surface layer on the substrate material layer that is capable of functionalisation for use as an array, and an inert material wherein the structure includes accurately defined and functionalisable isolated areas which are millimeter to nanometer in size. The functionalised areas are part of the continuous 3D surface layer and are isolated by the inert material and are interconnected within the structure by the continuous 3D surface layer.
摘要:
Systems, apparatus and methods are provided for biochemical analysis of a sample (e.g., a cell or nucleic acids). Samples are analyzed for molecular information and remain accessible for subsequent analysis or testing. The systems, apparatus and methods and systems provided are useful for performing quantitative and highly parallel biochemical reactions on biological samples in a high-throughput manner.
摘要:
A hanging droplet plate (1) comprises a predetermined number of droplet compartments (10) each being capable of receiving a droplet of a liquid. The respective droplet compartment (10) comprises a circumferential microfluidic wetting barrier (102) which is arranged to surround a respective cavity (100) and which prevents a droplet from spreading beyond the microfluidic wetting barrier (102). The respective compartment (10) comprises a closed bottom (101) and at least one additional circumferential microfluidic wetting barrier (104), each additional circumferential microfluidic wetting barrier (104) which is arranged to surround a preceding circumferential microfluidic wetting barrier (102). A wettable area (103) is arranged between two adjacently arranged microfluidic wetting barriers (102, 104).
摘要:
A method of reading a plurality of encoded microvessels used in an assay for biological or chemical analysis The method can include providing a plurality of encoded microvessels The microvessels can include a respective microbody and a reservoir core configured to hold a substance in the reservoir core The microbody can include a material that surrounds the reservoir core and facilitates detection of a characteristic of the substance within the reservoir core Optionally, the material can be transparent so as to facilitate detection of an optical characteristic of a substance within the reservoir core The microbody can include an identifiable code associated with the substance The method can also include determining the corresponding codes of the microvessels.
摘要:
A method of reading a plurality of encoded microvessels used in an assay for biological or chemical analysis The method can include providing a plurality of encoded microvessels The microvessels can include a respective microbody and a reservoir core configured to hold a substance in the reservoir core The microbody can include a material that surrounds the reservoir core and facilitates detection of a characteristic of the substance within the reservoir core Optionally, the material can be transparent so as to facilitate detection of an optical characteristic of a substance within the reservoir core The microbody can include an identifiable code associated with the substance The method can also include determining the corresponding codes of the microvessels.