DNA-decorated carbon nanotubes for chemical sensing

Johnson, A. T. Charlie; Staii, Cristian; Chen, Michelle; Khamis, Samuel M.; Johnson, Robert R.; Klein, Michael L.; Gelperin, Alan

doi:10.1088/0268-1242/21/11/s03

Cited by 43 publications

(40 citation statements)

References 36 publications

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“…Knowing the structures of the characteristic volatiles will provide a guide for creation of compound-specific sensors [42][43][44]. Fitted to electronic nose ("enose") devices, sensors responding to bacterial volatiles [45][46][47][48][49] would aid physicians in choosing antibiotics in real time, similar to the rapid strep test used for acute pharyngitis [50].…”

Section: Introductionmentioning

confidence: 99%

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Volatile compounds characteristic of sinus-related bacteria and infected sinus mucus: Analysis by solid-phase microextraction and gas chromatography–mass spectrometry

Preti¹,

Thaler²,

Hanson³

et al. 2009

Journal of Chromatography B

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Section: Introductionmentioning

confidence: 99%

“…The sensors in this device comprise an array of 32 chemiresistors [52]. Use of volatile-specific detectors may enhance speed, selectivity and specificity of disease diagnosis [44].…”

Section: Introductionmentioning

confidence: 99%

Volatile compounds characteristic of sinus-related bacteria and infected sinus mucus: Analysis by solid-phase microextraction and gas chromatography–mass spectrometry

Preti¹,

Thaler²,

Hanson³

et al. 2009

Journal of Chromatography B

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“…The ss-DNA functionalized CNT devices showed a significant current modulation as high as 20-30% versus 0-1% in bare control CNT devices at the same exposure dose. 480,481 Highly selective interactions between ss-DNA and CNTs of different chiralities may provide further tunability for this class of chemical sensors. 95 In an effort to simplify fabrication, research has also been devoted to using CNT thin Specificity issues were addressed to some extent by implementing both covalent 483 and non-covalent 484 functionalizations of these CNT thin films.…”

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confidence: 99%

Carbon nanomaterials for electronics, optoelectronics, photovoltaics, and sensing

et al. 2013

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In the last three decades, zero-dimensional, one-dimensional, and two-dimensional carbon nanomaterials (i.e., fullerenes, carbon nanotubes, and graphene, respectively) have attracted significant attention from the scientific community due to their unique electronic, optical, thermal, mechanical, and chemical properties. While early work showed that these properties could enable high performance in selected applications, issues surrounding structural inhomogeneity and imprecise assembly have impeded robust and reliable implementation of carbon nanomaterials in widespread technologies. However, with recent advances in synthesis, sorting, and assembly techniques, carbon nanomaterials are experiencing renewed interest as the 2 basis of numerous scalable technologies. Here, we present an extensive review of carbon nanomaterials in electronic, optoelectronic, photovoltaic, and sensing devices with a particular focus on the latest examples based on the highest purity samples. Specific attention is devoted to each class of carbon nanomaterial, thereby allowing comparative analysis of the suitability of fullerenes, carbon nanotubes, and graphene for each application area. In this manner, this article will provide guidance to future application developers and also articulate the remaining research challenges confronting this field.Deep Jariwala is currently working as a graduate student under supervision of Prof. Mark

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“…We find that devices fabricated using the PMGI/S1813 bilayer show an ON-state resistance of 250 k ± 100 k , a range that is essentially identical to the best results that we and other groups have obtained using EBL. [16][17][18] In contrast, samples made using S1813 alone had a much larger ON-state resistance with considerably larger fluctuations (5.0 M ± 3.0 M ). This striking difference in contact resistance is attributed to the presence of scum from the S1813 photoresist on the SWNT sidewall and on the substrate surface when the PMGI buffer layer is omitted.…”

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confidence: 99%

Optimized photolithographic fabrication process for carbon nanotube devices

2011

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We have developed a photolithographic process for the fabrication of large arrays of single walled carbon nanotube transistors with high quality electronic properties that rival those of transistors fabricated by electron beam lithography. A buffer layer is used to prevent direct contact between the nanotube and the novolac-based photoresist, and a cleaning bake at 300C effectively removes residues that bind to the nanotube sidewall during processing. In situ electrical measurement of a nanotube transistor during a temperature ramp reveals sharp decreases in the ON-state resistance that we associate with the vaporization of components of the photoresist. Data from nearly 2000 measured nanotube transistors show an average ON-state resistance of 250 ± 100 kΩ. This new process represents significant progress towards the goal of high-yield production of large arrays of nanotube transistors for applications including chemical sensors and transducers, as well as integrated circuit components

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DNA-decorated carbon nanotubes for chemical sensing

Cited by 43 publications

References 36 publications

Volatile compounds characteristic of sinus-related bacteria and infected sinus mucus: Analysis by solid-phase microextraction and gas chromatography–mass spectrometry

Volatile compounds characteristic of sinus-related bacteria and infected sinus mucus: Analysis by solid-phase microextraction and gas chromatography–mass spectrometry

Carbon nanomaterials for electronics, optoelectronics, photovoltaics, and sensing

Optimized photolithographic fabrication process for carbon nanotube devices

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