摘要:
The invention relates to a method for obtaining a functionalised sensor tip for atomic force microscopy, which is characterised in that functionalisation takes place by means of an activated vapour silanisation process, comprising: a) evaporating an organometallic compound containing at least one silicon atom and at least one functional group selected from an amine group, a hydroxyl group, a carboxyl group and a thiol group; b) activating the vapour of the organometallic compound of step a) by heating; and c) causing the activated vapour of step b) to impinge on a sensor tip for atomic force microscopy in order to deposit a film of the organometallic compound on the sensor tip, steps b) and c) taking place consecutively. The invention also relates to the functionalised sensor tip obtained using the method.
摘要:
The invention is related to a reconditioning wafer (1) comprising a carrier substrate (2) that supports at least one array of regularly spaced protrusions (3,5,6,7+8) suitable for forming indentations in a support surface of a wafer holding stage. The protrusions within the same array have essentially the same shape and the same dimensions, thereby enabling a more reliable reconditioning process compared to prior art solutions. The protrusions may have the form of pyramids (3) or pillars (6) or other similar shapes with at least the tip of the protrusions formed of a material suitable for making the indentations. The reconditioning wafer is obtainable by a molding technique wherein an array of molds (11) is created in a mold substrate (10), after which the molds are filled with an indentation material such as diamond, and bonded to the carrier substrate (2), after which the mold substrate is removed by thinning and wet etching.
摘要:
Provided are methods of detecting molecular interactions using arrays and near field scanning probe techniques. Also provided are methods of characterizing binding interactions under defined reaction parameters, methods of determining antibody binding specificity, methods of selecting a substrate for an array of immobilized molecules and methods of determining molecular occupancy time with respect to binding interactions.
摘要:
A device and method for detecting, diagnosing, and or monitoring alcoholism and related disease states is disclosed. The device includes a substrate and one or more alcoholism-specific nucleic acids attached to the substrate. The substrate is contacted by a sample collected from a person with alcoholism or alcohol abuse or an alcohol related disease state, wherein contact occurs under pre-selected binding conditions that provides information that can be collected and recorded by a computer.
摘要:
The invention provides methods and systems for improved spatial resolution of signal detection, particularly as applied to the analysis of polymers such as biological polymers. The methods and systems comprise differentially tagging polymers in order to increase resolution.
摘要:
The invention relates to a system suitable for its use in scanning probe microscopy, such as tip-enhanced Raman spectroscopy or magnetic force microscopy, that comprises: a tip (1) comprising an apex (1'); a plurality of nanoparticles (2, 2') attached to the tip (1); having a size between 0.5 and 100 nm. Advantageously, the plurality of nanoparticles (2, 2') comprises a cluster (2") of one or more nanoparticles (2') disposed at the apex (1') of the tip (1), wherein the cluster (2") is spaced from any other nanoparticle (2) of the tip (1) at least a distance d of 0.5 nm. The invention also relates to a method for obtaining such system through a controlled thermal treatment that exploits the intrinsic properties of nanoparticles.
摘要:
Between a nitrogen-vacancy center and a support portion, a cut-off portion is provided that cuts off the nitrogen-vacancy center from the support portion.