Abstract
In this work, the radioisotope 64Cu was obtained from copper (II) chloride dihydrate in a nuclear research reactor by neutron capture, (63Cu(n,γ)64Cu), and incorporated into boron nitride nanotubes (BNNTs) using a solvothermal process. The produced 64Cu-BNNTs were analyzed by TEM, MEV, FTIR, XDR, XPS and gamma spectrometry, with which it was possible to observe the formation of64Cu nanoparticles, with sizes of up to 16 nm, distributed through nanotubes. The synthesized of 64Cu nanostructures showed a pure photoemission peak of 511 keV, which is characteristic of gamma radiation. This type of emission is desirable for Photon Emission Tomography (PET scan) image acquisition, as well as its use in several cancer treatments. Thus, 64Cu-BNNTs present an excellent alternative as theranostic nanomaterials that can be used in diagnosis and therapy by different techniques used in nuclear medicine.
Highlights
The discovery and development of new materials are often the catalysts for technological advances, when they can be applied to various areas of research
The multi-walled boron nitride nanotubes (BNNTs) are formed by several sheets of hexagonal boron nitride (h-BN) concentrically wrapped
The well-known longitudinal (LO) vibrations along the axis resonate sharply around 1369 cm−1, and a second signal (1545 cm−1 ) appears for tangential (T) circumferential in-plane modes. These T modes should be dependent on the diameter but seem to only be visible in highly pure, crystalline BNNTs [22]
Summary
The discovery and development of new materials are often the catalysts for technological advances, when they can be applied to various areas of research. A historic milestone in the search for new materials occurred in 1995 when boron nitride nanotubes (BNNTs) emerged as a key material in nanotechnology science [1]. BNNTs have cylindrical structures (one-dimensional—1D), formed only by atoms of boron (B). Similar to single-wall carbon nanotubes (SWCNT), depending on the angle θ in which the sheet is rolled, nanotube structures are formed with armchair (θ = 30◦ ), zig-zag (θ = 0◦ ) and chiral (0 < /θ/ < 30◦ ) forms [3]. The multi-walled BNNTs are formed by several sheets of hexagonal boron nitride (h-BN) concentrically wrapped.
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