Ion track technology (track replication)
Encyclopedia
Replication of ion tracks
| Etched ion tracks can be replicated Replica (disambiguation) A replica is a copy that is relatively indistinguishable from the original.Replica may also refer to:In science:* Replica trickIn technology:* Replica , Complementary copy of single stranded DNA.... by polymer Polymer A polymer is a large molecule composed of repeating structural units. These subunits are typically connected by covalent chemical bonds... s or metal Metal A metal , is an element, compound, or alloy that is a good conductor of both electricity and heat. Metals are usually malleable and shiny, that is they reflect most of incident light... s. Replica Replica A replica is a copy closely resembling the original concerning its shape and appearance. An inverted replica complements the original by filling its gaps. It can be a copy used for historical purposes, such as being placed in a museum. Sometimes the original never existed. For example, Difference... and template Die (manufacturing) A die is a specialized tool used in manufacturing industries to cut or shape material using a press. Like molds, dies are generally customized to the item they are used to create... can be used as composite Composite material Composite materials, often shortened to composites or called composition materials, are engineered or naturally occurring materials made from two or more constituent materials with significantly different physical or chemical properties which remain separate and distinct at the macroscopic or... . A replica can be separated from its template Die (manufacturing) A die is a specialized tool used in manufacturing industries to cut or shape material using a press. Like molds, dies are generally customized to the item they are used to create... mechanically or chemically. Polymer Polymer A polymer is a large molecule composed of repeating structural units. These subunits are typically connected by covalent chemical bonds... replica Replica (disambiguation) A replica is a copy that is relatively indistinguishable from the original.Replica may also refer to:In science:* Replica trickIn technology:* Replica , Complementary copy of single stranded DNA.... s are obtained by filling the etched track with a liquid precursor Precursor (chemistry) In chemistry, a precursor is a compound that participates in the chemical reaction that produces another compound. In biochemistry, the term "precursor" is used more specifically to refer to a chemical compound preceding another in a metabolic pathway.... of the polymer Polymer A polymer is a large molecule composed of repeating structural units. These subunits are typically connected by covalent chemical bonds... and curing Curing (chemistry) Curing is a term in polymer chemistry and process engineering that refers to the toughening or hardening of a polymer material by cross-linking of polymer chains, brought about by chemical additives, ultraviolet radiation, electron beam or heat... it. Curing can be activated by a catalyst Catalysis Catalysis is the change in rate of a chemical reaction due to the participation of a substance called a catalyst. Unlike other reagents that participate in the chemical reaction, a catalyst is not consumed by the reaction itself. A catalyst may participate in multiple chemical transformations.... , by uv radiation Radiation In physics, radiation is a process in which energetic particles or energetic waves travel through a medium or space. There are two distinct types of radiation; ionizing and non-ionizing... or by heat Heat In physics and thermodynamics, heat is energy transferred from one body, region, or thermodynamic system to another due to thermal contact or thermal radiation when the systems are at different temperatures. It is often described as one of the fundamental processes of energy transfer between... . Metal Metal A metal , is an element, compound, or alloy that is a good conductor of both electricity and heat. Metals are usually malleable and shiny, that is they reflect most of incident light... replica Replica (disambiguation) A replica is a copy that is relatively indistinguishable from the original.Replica may also refer to:In science:* Replica trickIn technology:* Replica , Complementary copy of single stranded DNA.... s can be obtained either by electroless deposition Electroplating Electroplating is a plating process in which metal ions in a solution are moved by an electric field to coat an electrode. The process uses electrical current to reduce cations of a desired material from a solution and coat a conductive object with a thin layer of the material, such as a metal... or by electro-deposition Plating Plating is a surface covering in which a metal is deposited on a conductive surface. Plating has been done for hundreds of years, but it is also critical for modern technology... . For replication of through-pores, a cathode film is deposited on one side of the membrane. The membrane is immersed in a metal salt solution. The cathode film is negatively charged with respect to the anode which is placed on the opposite side of the membrane. The positive metal ions are pulled toward the cathode where they catch electrons and precipitate as a compact metal film. During electro-deposition the channels fill gradually with metal. The length of the nano wires is controlled by the deposition time. Rapid deposition leads to polycrystalline wires. Slow deposition leads to single crystalline wires. A free standing replica is obtained by removing the template after deposition of a bearing film on the anode side of the membrane. |
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| Interpenetrating wire networks are fabricated by electro-deposition in multi-angle track-etched membranes. Free-standing three-dimensional networks with tunable complexity and interwire connectivity are obtained. | |
| Segmented nanowires are fabricated by alternating the polarity during electro-deposition. The segment length is adjusted by the pulse duration. In this way electrical, thermal, and optical properties can be tuned. |