Review—Single Walled Carbon Nanotubes as Optical Sensors for Biological Applications

Hofferber, Eric M.; Stapleton, Joseph A.; Iverson, Nicole M.

doi:10.1149/1945-7111/ab64bf

Cited by 42 publications

(38 citation statements)

References 107 publications

(200 reference statements)

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“…SWCNT@PEG-D-naphthoate has significantly lower fluorescence emission intensity except for (8,3)-and (6,5)-chiralities. J) normalized fluorescence emission for the (7,5) chirality at an excitation wavelength of λex = 650 nm reveals shifts in the emission wavelength (SWCNT@PEG-D-naphthyl (blue), SWCNT@PEG-D-naphthoate (red), SWCNT@PEG-Dpentyl (yellow), SWCNT@PEG-D-hexanoate (purple)).…”

Section: Resultsmentioning

confidence: 99%

Dendron-Polymer Hybrids as Tailorable Coronae of Single-Walled Carbon Nanotube

Wulf¹,

Slor²,

Rathee³

et al. 2021

Preprint

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Single-walled carbon nanotubes (SWCNTs), non-covalently functionalized by synthetic polymers, find widespread applications including sensing and imaging. Identifying new amphiphiles with interchangeable building blocks that can form unique coronae around the SWCNT, customized for a specific application, is thus of great interest. We present polymer-dendron hybrids, composed of hydrophobic dendrons and hydrophilic polyethylene glycol (PEG), as amphiphilic macromolecules with high degree of structural freedom, for suspending SWCNTs in aqeous solution. Based on a set of four PEG-dendrons differing in their dendritic end-groups, we show thst differences in the chemical structure of the hydrophobic end-groups control the interactions of the PEG-dendrons with the SWCNT-surface. These interactions led to differences in the intrinsic near-infrared fluorescence emission of the SWCNTs and affected the PEG-dendron susceptibility to enzymatic degradation, which was monitored by the SWCNT fluorescent signal. Our findings open new avenues for rational design of SWCNT functionalization, and optical sensing of enzymatic activity<br>

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Section: Resultsmentioning

confidence: 99%

Dendron-Polymer Hybrids as Tailorable Coronae of Single-Walled Carbon Nanotube

Wulf¹,

Slor²,

Rathee³

et al. 2021

Preprint

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“…For these reasons, they have been intensively studied for optical and electronic applications. [252][253][254] Shin et al reported PEDOT/CNTs with core-shell structure, synthesized by emulsion polymerization; [255] dodecylbenzene sulfonic acid was used as surfactant. When added to water, both CNTs and EDOT precursors associated into micelles; EDOT was then polymerized by the addition of FeCl 3 .…”

Section: Carbon Nanotubesmentioning

confidence: 99%

Poly(3,4‐ethylenedioxythiophene) in Dye‐Sensitized Solar Cells: Toward Solid‐State and Platinum‐Free Photovoltaics

Fagiolari

Varaia

Mariotti

et al. 2021

Advanced Sustainable Systems

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Dye-sensitized solar cells (DSSCs) have become a strong reality in the field of hybrid photovoltaics. Their ability to operate in diffused light conditions and the possibility of fabrication of modules bearing different colors make these cells attractive for different applications, for example, wearable electronics, building integration, etc. This review focuses on one of the compounds rather often studied for DSSCs, namely, poly(3,4-ethylenedioxythiophene) (PEDOT). It has been introduced both as a substitute for liquid electrolytes, in order to facilitate cells fabrication and increase their durability, and as an alternative to platinum for counter electrodes. The literature counts many studies on PEDOT and this manuscript collects them following a classification criterion based on applications, functionalization/doping strategies, and deposition methods. In addition to comparing the performance obtained for PEDOT-based systems with those of traditional cells (i.e., assembled with liquid iodine-based electrolytes and platinum cathodes), the manuscript also offers a brief analysis of costs and sustainability aspects, built up on experimental data found in the literature; this latter is expected to constitute a precious resource to catalyze the attention of the scientific community on relevant and preliminary aspects when figuring out the industrial scalability of newly proposed cell components.

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“…Single walled nanotubes (SWNTs) have attracted great interest due to their promising mechanical, chemical, and thermal properties and high surface area [1][2][3][4][5]. In recent years, there have been several experimental and theoretical studies showing the potential applications of SWNTs [6][7][8][9][10][11][12]. Applications include the use of SWNTs in energy storage and energy conversion devices [13,14], high-strength composites [15][16][17], nanoprobes and sensors [18][19][20], actuators [21,22], electronic devices [23,24], catalysis [25,26], and hydrogen storage media [27,28].…”

Section: Introductionmentioning

confidence: 99%

Ru-Doped Single Walled Carbon Nanotubes as Sensors for SO2 and H2S Detection

Kuganathan

Chroneos

2021

Chemosensors

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Carbon nanotubes are of great interest for their ability to functionalize with atoms for adsorbing toxic gases such as CO, NO, and NO2. Here, we use density functional theory in conjunction with dispersion correction to examine the encapsulation and adsorption efficacy of SO2 and H2S molecules by a (14,0) carbon nanotube and its substitutionally doped form with Ru. Exoergic encapsulation and adsorption energies are calculated for pristine nanotubes. The interaction of molecules with pristine nanotube is non-covalent as confirmed by the negligible charge transfer. The substitutional doping of Ru does not improve the encapsulation significantly. Nevertheless, there is an important enhancement in the adsorption of molecules by Ru-doped (14,0) nanotube. Such strong adsorption is confirmed by the strong chemical interaction between the nanotube and molecules. The promising feature of Ru-doped nanotubes can be tested experimentally for SO2 and H2S gas sensing.

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Review—Single Walled Carbon Nanotubes as Optical Sensors for Biological Applications

Cited by 42 publications

References 107 publications

Dendron-Polymer Hybrids as Tailorable Coronae of Single-Walled Carbon Nanotube

Dendron-Polymer Hybrids as Tailorable Coronae of Single-Walled Carbon Nanotube

Poly(3,4‐ethylenedioxythiophene) in Dye‐Sensitized Solar Cells: Toward Solid‐State and Platinum‐Free Photovoltaics

Ru-Doped Single Walled Carbon Nanotubes as Sensors for SO2 and H2S Detection

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