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Carbon Nanotubes in Biomedicine

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Abstract

Nowadays, biomaterials have become a crucial element in numerous biomedical, preclinical, and clinical applications. The use of nanoparticles entails a great potential in these fields mainly because of the high ratio of surface atoms that modify the physicochemical properties and increases the chemical reactivity. Among them, carbon nanotubes (CNTs) have emerged as a powerful tool to improve biomedical approaches in the management of numerous diseases. CNTs have an excellent ability to penetrate cell membranes, and the sp2 hybridization of all carbons enables their functionalization with almost every biomolecule or compound, allowing them to target cells and deliver drugs under the appropriate environmental stimuli. Besides, in the new promising field of artificial biomaterial generation, nanotubes are studied as the load in nanocomposite materials, improving their mechanical and electrical properties, or even for direct use as scaffolds in body tissue manufacturing. Nevertheless, despite their beneficial contributions, some major concerns need to be solved to boost the clinical development of CNTs, including poor solubility in water, low biodegradability and dispersivity, and toxicity problems associated with CNTs’ interaction with biomolecules in tissues and organs, including the possible effects in the proteome and genome. This review performs a wide literature analysis to present the main and latest advances in the optimal design and characterization of carbon nanotubes with biomedical applications, and their capacities in different areas of preclinical research.

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(with permission from Calle et al. [88])

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(with permission from Fernandes et al. [134])

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(with permission from Al-Jamal et al. [161])

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(modified with permission from Al Faraj et al. [192])

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Abbreviations

AFM:

Atomic force microscopy

AGP:

Angiopep-2

BBB:

Blood–brain barrier

BLI:

Bioluminescence imaging

BRB:

Berberine

CA(s):

Contrast agent(s)

CNT(s):

Carbon nanotube(s)

DMF:

Dimethylformamide

DNA:

Deoxyribonucleic acid

DOX:

Doxorubicin

EM:

Electron microscopy

FTIR:

Fourier-transformed infrared spectroscopy

Gd:

Gadolinium

GNTs:

Gado-nanotubes

HA:

Hyaluronic acid

MRI:

Magnetic resonance imaging

MWCNT(s):

Multi-walled carbon nanotube(s)

NGF:

Nerve growth factor

NIR:

Near-infrared radiation

NP(s):

Nanoparticle(s)

PEG:

Polyethylene glycol

PET:

Positron emission tomography

PLK1:

Polo-like kinase 1

PTT:

Photothermal therapy

RNA:

Ribonucleic acid

SC:

Stem cells

SDBS:

Sodium dodecyl benzene sulfonate

SEM:

Scanning electron microscopy

siRNA:

Small interfering ribonucleic acid

SPECT:

Single-photon emission computed tomography

STM:

Scanning tunneling microscopy

SWCNT(s):

Single-walled carbon nanotube(s)

TEM:

Transmission electron microscopy

XPS:

X-ray photoelectron spectroscopy

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Acknowledgements

This study was funded by grants from the Ministry of Economy, Industry and Competitivity (SAF2017-83043-R), and by the Program MULTITARGET&VIEW-CM from Community of Madrid, Spain (S2017/BMD-3688), involving contributions from FEDER and FSE funds.

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Pilar López-Larrubia had the idea for the article. Viviana Negri, Jesús Pacheco-Torres, Daniel Calle, and Pilar Lopez-Larrubia performed the literature search and data analysis, drafted and critically revised the work.

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This article is part of the Topical Collection “Surface-modified Nanobiomaterials for Electrochemical and Biomedicine Applications”; edited by “Alain R. Puente-Santiago, Daily Rodríguez-Padrón”.

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Negri, V., Pacheco-Torres, J., Calle, D. et al. Carbon Nanotubes in Biomedicine. Top Curr Chem (Z) 378, 15 (2020). https://doi.org/10.1007/s41061-019-0278-8

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