Synthesis of functionalized carbon nanotubes for fluorescent biosensors

Wojtera, Katarzyna; Walczak, Małgorzata; Pietrzak, Łukasz; Frączyk, Justyna; Szymański, Łukasz; Sobczyk-Guzenda, Anna

doi:10.1515/ntrev-2020-0096

Cited by 9 publications

(9 citation statements)

References 14 publications

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Section: Resultsmentioning

confidence: 99%

“…Figure1ashows the FT-IR spectra of SWCNTs and P-SWCNTs and it can be seen that peaks occurred near 1114, 1382, 1751, 2920, and 3436 cm −1 . For the SWCNTs, differences after atmospheric-pressure plasma treatment were observed as larger peaks at wavenumbers 1699 and 1385 cm −1 , which correspond to the carboxyl (-COOH) stretching vibrations of C=O and C-OH, respectively, while the peaks at 1110 and 2918 cm −1 correspond to the stretching vibrations of C-O and C-H, respectively[42,43].The XPS spectra on the surface of SWCNTs and P-SWCNTs, as well as the atomic content concentrations of C and O, are shown in Figure1band TableS1(Supplementary Materials), respectively. It was found that the C 1s /O 1s ratios of the SWCNTs and P-SWCNTs samples were 0.04% and 0.09%, respectively.…”

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confidence: 99%

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Effect of Atmospheric-Pressure Plasma Treatments on Fracture Toughness of Carbon Fibers-Reinforced Composites

et al. 2021

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In this study, nano-scale fillers are added to epoxy matrix-based carbon fibers-reinforced composites (CFRPs) to improve the mechanical properties of multi-scale composites. Single-walled carbon nanotubes (SWCNTs) used as nano-scale fillers are treated with atmospheric-pressure plasma to introduce oxygen functional groups on the fillers’ surface to increase the surface free energy and polar component, which relates to the mechanical properties of multi-scale composites. In addition, the effect of dispersibility was analyzed through the fracture surfaces of multi-scale composites containing atmospheric-pressure plasma-treated SWCNTs (P-SWCNTs) under high load conditions. The fillers content has an optimum weight percent load at 0.5 wt.% and the fracture toughness (KIC) method is used to demonstrate an improvement in mechanical properties. Here, KIC was calculated by three equations based on different models and we analyzed the correlation between mechanical properties and surface treatment. Compared to the composites of untreated SWCNTs, the KIC value is improved by 23.7%, suggesting improved mechanical properties by introducing selective functional groups through surface control technology to improve interfacial interactions within multi-scale composites.

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Section: Resultsmentioning

confidence: 99%

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confidence: 99%

Effect of Atmospheric-Pressure Plasma Treatments on Fracture Toughness of Carbon Fibers-Reinforced Composites

et al. 2021

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“…Multi-walled iron-filled carbon nanotubes were synthesized by catalytic chemical vapor deposition (CCVD) [19,27]. The synthesis process was carried out in a three-zone furnace, which allowed independent temperature control of each zone.…”

Section: Synthesis Of Fe-mwcntsmentioning

confidence: 99%

“…Surface modifications of carbon nanotubes can give nanotubes a number of applications in medical diagnostics, for example, attachment of a fluorescent dye to the surface of the nanotube and appropriate functionalization can contribute to the creation of biosensors that detect diseases and disorders at a very early stage. In combination with targeted therapy, it may provide the possibility of simultaneous monitoring of the effects of a given therapy [19].…”

Section: Introductionmentioning

confidence: 99%

Examination of the Effect of RF Field on Fe-MWCNTs and Their Application in Medicine

et al. 2022

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Carbon nanotubes are a material with excellent properties, which result in a wide range of possible applications, from electronics to medicine. This paper presents the investigation of the possibility of Fe-MWCNTs’ application as heating agents for targeted thermal ablation of cancer cells, which could lead to the development of an innovative cancer treatment method. The article describes the process of synthesis of multi-walled carbon nanotubes filled with iron (Fe-MWCNTs) and provides an examination of their magnetic properties. Fe-MWCNTs were synthesized by catalytic chemical vapor deposition (CCVD). Relevant properties of the nanoparticles in terms of functionalization for biomedical applications were exploited and their magnetic properties were investigated to determine the heat generation efficiency induced by exposure of the particles to an external electromagnetic field. The reaction of the samples was measured for 40 min of exposure. The results showed an increase in sample temperature that was proportional to the concentration.

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“…without significantly altering their properties. [ 155 , 156 ]. Moreover, more active binding sites can be created on the surface of nanotubes making them more easily dispersible in various solvents.…”

Section: Carbon-based Nanomaterialsmentioning

confidence: 99%

Metal Nanoparticles and Carbon-Based Nanomaterials for Improved Performances of Electrochemical (Bio)Sensors with Biomedical Applications

et al. 2021

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Monitoring human health for early detection of disease conditions or health disorders is of major clinical importance for maintaining a healthy life. Sensors are small devices employed for qualitative and quantitative determination of various analytes by monitoring their properties using a certain transduction method. A “real-time” biosensor includes a biological recognition receptor (such as an antibody, enzyme, nucleic acid or whole cell) and a transducer to convert the biological binding event to a detectable signal, which is read out indicating both the presence and concentration of the analyte molecule. A wide range of specific analytes with biomedical significance at ultralow concentration can be sensitively detected. In nano(bio)sensors, nanoparticles (NPs) are incorporated into the (bio)sensor design by attachment to the suitably modified platforms. For this purpose, metal nanoparticles have many advantageous properties making them useful in the transducer component of the (bio)sensors. Gold, silver and platinum NPs have been the most popular ones, each form of these metallic NPs exhibiting special surface and interface features, which significantly improve the biocompatibility and transduction of the (bio)sensor compared to the same process in the absence of these NPs. This comprehensive review is focused on the main types of NPs used for electrochemical (bio)sensors design, especially screen-printed electrodes, with their specific medical application due to their improved analytical performances and miniaturized form. Other advantages such as supporting real-time decision and rapid manipulation are pointed out. A special attention is paid to carbon-based nanomaterials (especially carbon nanotubes and graphene), used by themselves or decorated with metal nanoparticles, with excellent features such as high surface area, excellent conductivity, effective catalytic properties and biocompatibility, which confer to these hybrid nanocomposites a wide biomedical applicability.

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Synthesis of functionalized carbon nanotubes for fluorescent biosensors

Cited by 9 publications

References 14 publications

Effect of Atmospheric-Pressure Plasma Treatments on Fracture Toughness of Carbon Fibers-Reinforced Composites

Effect of Atmospheric-Pressure Plasma Treatments on Fracture Toughness of Carbon Fibers-Reinforced Composites

Examination of the Effect of RF Field on Fe-MWCNTs and Their Application in Medicine

Metal Nanoparticles and Carbon-Based Nanomaterials for Improved Performances of Electrochemical (Bio)Sensors with Biomedical Applications

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