KMnF3 nanowire and preparation method thereof

A nanowire, oil-soluble technology, applied in the field of preparation of KMnF3 nanowires, can solve the problems of being unsuitable for large-scale production, difficult to elute the solvent, uneven reaction, etc., and achieve suitable for large-scale production, uniform product morphology, The effect of the simple method of synthesis
CN106745286AInactive Publication Date: 2017-05-31HEFEI UNIV OF TECH
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
HEFEI UNIV OF TECH
Publication Date
2017-05-31
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention discloses a KMnF3 nanowire and a preparation method thereof,. The KMnF3 nanowire is characterized in that one-dimension oil-soluble KMnF3 nanowire is prepared by mixing manganese oleate, oleic acid, oleylamine and octadecene according to a certain proportion and reacting under a condition of excessive potassium fluoride. According to the invention, the one-dimension oil-soluble KMnF3 nanowire is synthesized by the high-temperature oil phase method for the first time, and water-soluble KMnF3 nanowire is obtained after high molecular surface modification, has a longitudinal molar relaxation rate r1 of 4-6 mM<-1>s<-1>, and is a good T1 magnetic resonance imaging (MRI) contrast agent.
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Description

technical field

[0001] The invention belongs to the technical field of nanomaterial preparation and relates to a KMnF 3 Methods of preparing nanowires. Background technique

[0002] The properties of nanomaterials are closely related to their size, structure and morphology. The relaxation performance of magnetic resonance contrast agents is closely related to the shape and size of nanomaterials. The commonly used T 1 Type contrast agents are Gd-DTPA, MnO, Mn 3 o 4 Wait. Among them, the divalent manganese ion has 5 unpaired electrons that can shorten T 1 The relaxation time of , which can be used as the magnetic resonance T 1 contrast agent. Mn-based contrast agents have attracted extensive attention due to their good biocompatibility and relatively high relaxivity. QUR 3 It is a new type of manganese-based contrast agent developed in recent years, which has good biocompatibility and high longitudinal relaxation efficiency. Currently KMnF 3 The synthesis of mainly ...

Claims

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