Abstract:
The invention relates to a method for transferring a nanolayer (1) from a first substrate (5, 105) to a second substrate (30, 130), wherein the nanolayer (1) comprises a self-aggregating monolayer having cross-linked phenyl units and/or a monoatomic graphite layer (graphs), and the method comprises the following steps: h. applying a transfer medium (20, 120) onto the nanolayer (1), wherein the transfer medium (20, 120) is converted from a liquid or gaseous phase into a solid phase either in this step, or afterward; i. detaching the transfer medium (20, 120) and the nanolayer (1) from the first substrate (5, 105); and j. applying the transfer medium (20, 120) and the nanolayer (1) onto the second substrate (30, 120); and k. removing the transfer medium (20, 120).
Abstract:
Disclosed is a process for forming a patterned fluoropolymer film on a substrate by raised relief printing a fluoropolymer solution with a patterned raised relief printing plate, and drying the solvent from the solution to form the patterned fluoropolymer film. Such fluoropolymer films are useful as antireflective or hydrophobic layers on substrates used in optical displays.
Abstract:
A simple and reproducible preparative method for the fabrication of surface-chemical gradients is described herein. Surface-chemical gradient films are prepared by using a liquid front in relative motion to the substrate (e.g. immersion by a linear-motion drive or the use of a spreading droplet) to gradually expose substrate samples to very dilute solutions of adsorbates. As demonstrated by XPS, the self: assembled monolayer gradients produced in this way display a high packing density. This method can be used in the preparation of other gradients of various chemical or biochemical functionalities in one or two dimensions. Such gradients can be used in a wide variety of applications in such diverse areas as cell motility studies, nanotribology research, and high-throughput screening.
Abstract:
Methods of attaching a ligand to a surface are described that include contacting a surface having an amphiphilic comb polymer present thereon and having a first reactive moiety attached thereto with a substrate having at least one ligand thereon. The ligand can include a second reactive moiety, wherein the second reactive moiety of the biological ligand and the first reactive moiety of the amphiphilic comb polymer form a covalent bond. The substrate can be separated from the surface, thereby leaving the biological ligand covalently bound to the amphiphilic comb polymer.
Abstract:
Functionalized polymer surfaces having reactive moieties thereon are contacted with stamps having ligands adsorbed thereto, the ligands also comprising reactive moieties. The reactive moieties of the functionalized surfaces and the ligands form covalent bonds, thus providing a method of microstamping polymer surfaces directly with ligands such as biological ligands. Using this method, devices such as tissue culture plates with polymer surfaces that are microstamped directly with ligands can be made.