摘要:
The invention provides a lithographic method referred to as “dip pen” nanolithography (DPN). DPN utilizes a scanning probe microscope (SPM) tip (e.g., an atomic force microscope (AFM) tip) as a “pen,” a solid-state substrate (e.g., gold) as “paper,” and molecules with a chemical affinity for the solid-state substrate as “ink.” Capillary transport of molecules from the SPM tip to the solid substrate is used in DPN to directly write patterns consisting of a relatively small collection of molecules in submicrometer dimensions, making DPN useful in the fabrication of a variety of microscale and nanoscale devices. The invention also provides substrates patterned by DPN, including submicrometer combinatorial arrays, and kits, devices and software for performing DPN. The invention further provides a method of performing AFM imaging in air. The method comprises coating an AFM tip with a hydrophobic compound, the hydrophobic compound being selected so that AFM imaging performed using the coated AFM tip is improved compared to AFM imaging performed using an uncoated AFM tip. Finally, the invention provides AFM tips coated with the hydrophobic compounds.
摘要:
Disclosed are methods and materials for utilizing enzymes to act on metal ions in solution so that the ions are reduced to metal. Additionally disclosed is how to use enzymes to accumulate metal particles. The alteration of metal particles by enzymes interacting with the organic shell of the particles is also described. These methods enable a wide range of applications including sensitive detection of genes and proteins, use as probes for microscopy, nanofabrication, biosensors, and remediation.
摘要:
The invention provides a lithographic method referred to as “dip pen” nanolithography (DPN). DPN utilizes a scanning probe microscope (SPM) tip (e.g., an atomic force microscope (AFM) tip) as a “pen,” a solid-state substrate (e.g., gold) as “paper,” and molecules with a chemical affinity for the solid-state substrate as “ink.” Capillary transport of molecules from the SPM tip to the solid substrate is used in DPN to directly write patterns consisting of a relatively small collection of molecules in submicrometer dimensions, making DPN useful in the fabrication of a variety of microscale and nanoscale devices. The invention also provides substrates patterned by DPN, including submicrometer combinatorial arrays, and kits, devices and software for performing DPN. The invention further provides a method of performing AFM imaging in air. The method comprises coating an AFM tip with a hydrophobic compound, the hydrophobic compound being selected so that AFM imaging performed using the coated AFM tip is improved compared to AFM imaging performed using an uncoated AFM tip. Finally, the invention provides AFM tips coated with the hydrophobic compounds.
摘要:
In one aspect, a method of nanolithography is provided using a driving force to control the movement of a deposition compound from a scanning probe microscope tip to a substrate. Another aspect of the invention provides a tip for use in nanolithography having an internal cavity and an aperture restricting movement of a deposition compound from the tip to the substrate. The rate and extent of movement of the deposition compound through the aperture is controlled by a driving force.
摘要:
The present invention relates to the use of direct-write lithographic printing of proteins and peptides onto surfaces. In particular, the present invention relates to methods for creating protein and peptide arrays and compositions derived therefrom. Nanoscopic tips can be used to deposit the peptide or protein onto the surface to produce a pattern. The pattern can be dots or lines having dot diameter and line width of less than 1,000 nm. The tips and the substrate surfaces can be adapted for the peptide and protein lithography.
摘要:
Reactors and methods for miniaturized reactions having enhanced reaction kinetics. In particular the subject matter is directed to chemical and biological reactions conducted in a nanoporous membrane environment. The subject matter contemplates methods for modifying the kinetics of reactions and devices for conducting reactions having modified kinetics. The subject matter also provides systems for rapid miniaturized reactions. Further the subject matter includes methods and kits for conducting a reaction with enhanced throughput and methods of conducting miniaturized, high throughput analyses of reaction products, and the like. Reactions performed on or within a nanoporous membrane exhibits improved kinetic characteristics.
摘要:
The invention provides a lithographic method referred to as “dip pen” nanolithography (DPN), which utilizes a scanning probe microscope (SPM) tip (e.g., an atomic force microscope (AFM) tip) as a “pen,” a solid-state substrate (e.g., gold) as “paper,” and molecules with a chemical affinity for the solid-state substrate as “ink.” Capillary transport of molecules from the SPM tip to the solid-state substrate is used in DPN to directly write patterns consisting of a relatively small collection of molecules in submicrometer dimensions, making DPN useful in the fabrication of a variety of microscale and nanoscale devices. The invention also provides substrates patterned by DPN, including submicrometer combinatorial arrays, and kits, devices and software for performing DPN. The invention further provides a method of performing AFM imaging in air. The method comprises coating an AFM tip with a hydrophobic compound, the hydrophobic compound being selected so that AFM imaging performed using the coated AFM tip is improved compared to AFM imaging preformed using an uncoated AFM tip. Finally, the invention provides AFM tips coated with the hydrophobic compounds.
摘要:
Described herein are a molecular memory obtained using DNA strand molecular switches and carbon nanotubes, and a manufacturing method thereof. In particular, the nonvolatile memory is manufactured according to an architecture that envisages the use of carbon nanotubes as electrical connectors and DNA strands as physical means on which to write the information. In other words, the nonvolatile memory is made by means of a set of molecular DNA strand switches, the addressing of which is controlled by molecular wires made up of carbon nanotubes.
摘要:
Disclosed are methods and materials for utilizing enzymes to act on metal ions in solution so that the ions are reduced to metal. Additionally, disclosed is how to use enzymes to accumulate metal particles. The alteration of metal particles by enzymes interacting with the organic shell of the particles is also described. These methods enable a wide range of applications including sensitive detection of genes and proteins, use as probes for microscopy, nanofabrication, biosensors, and remediation.
摘要:
The present invention provides nano-scale devices, including electronic circuits, using DNA molecules as a support structure. DNA binding proteins are used to mask regions of the DNA as a material, such as a metal is coated onto the DNA. Included in the invention are DNA based transistors, capacitors, inductors and diodes. The present invention also provides methods of making integrated circuits using DNA molecules as a support structure. Methods are also included for making DNA based transistors, capacitors, inductors and diodes.