Two-dimensional materials as solid-state nanopores for chemical sensing

Wang, Zhan; Lv, Tianyi; Shi, Zi-Bo; Yang, Shi‐Shu; Gu, Zhi‐Yuan

doi:10.1039/d1dt02206g

Cited by 17 publications

(14 citation statements)

References 113 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Owing to the intriguing physical, chemical, electronic, and optical properties of TMD nanomaterials, the performance of biosensors functionalized with these kinds of materials could be greatly enhanced. [137][138][139] Therefore, apart from exploring novel olfactory sensing elements, different nanomaterials are also worth studying to improve the recognition and transduction processes of olfactory biosensors.…”

Section: Sensitivity Of Olfactory Biosensorsmentioning

confidence: 99%

Insect olfactory system inspired biosensors for odorant detection

Liu

2022

Sens. Diagn.

View full text Add to dashboard Cite

show abstract

Section: Sensitivity Of Olfactory Biosensorsmentioning

confidence: 99%

Insect olfactory system inspired biosensors for odorant detection

Liu

2022

Sens. Diagn.

View full text Add to dashboard Cite

show abstract

“…Currently, there are four major types of nanopores: biological nanopores, solid-state nanopores, two dimensional (2D) nanopores, and hybrid nanopores. Among them, the 2D nanopores (nanopore creation in 2D materials) stand out due to the unique features of the 2D materials [7,8]. For example, the subnanometer thickness of the 2D nanopore is close to the spatial interval of neighboring nucleic acid bases, giving the ability to achieve gene sequencing at a single-base level.…”

Section: Introductionmentioning

confidence: 99%

Fabrication of Nanopore in MoS2-Graphene vdW Heterostructure by Ion Beam Irradiation and the Mechanical Performance

Yang

Chen

et al. 2022

Nanomaterials

View full text Add to dashboard Cite

Nanopore structure presents great application potential especially in the area of biosensing. The two-dimensional (2D) vdW heterostructure nanopore shows unique features, while research around its fabrication is very limited. This paper proposes for the first time the use of ion beam irradiation for creating nanopore structure in 2D vdW graphene-MoS2 heterostructures. The formation process of the heterostructure nanopore is discussed first. Then, the influence of ion irradiation parameters (ion energy and ion dose) is illustrated, based on which the optimal irradiation parameters are derived. In particular, the effect of stacking order of the heterostructure 2D layers on the induced phenomena and optimal parameters are taken into consideration. Finally, uniaxial tensile tests are conducted by taking the effect of irradiation parameters, nanopore size and stacking order into account to demonstrate the mechanical performance of the heterostructure for use under a loading condition. The results would be meaningful for expanding the applications of heterostructure nanopore structure, and can arouse more research interest in this area.

show abstract

“…Using the latter approach, solid-state devices have a benefit, since part of the membrane can be fabricated from conductive materials. Furthermore, solid-state nanopores also offer many advantages over their biological counterparts, such as mechanical robustness, chemical stability, easy modification, and large-scale integration [16,17]. In combination with field-effect transistors (FETs), they can be integrated on a chip with other electronic components, providing the potential for powerful, portable, and real-time devices.…”

Section: Introductionmentioning

confidence: 99%

Single-molecule DNA sequencing using two-dimensional Ti2C(OH)2 MXene nanopores: A first-principles investigation

2022

View full text Add to dashboard Cite

Nanopore-based devices have provided exciting opportunities to develop affordable label-free DNA sequencing platforms. Over a decade ago, graphene has been proposed as a two-dimensional (2D) nanopore membrane in order to achieve single-base resolution. However, it was experimentally revealed that clogging of the graphene nanopore can occur due to the hydrophobic nature of graphene, thus hindering the translocation of DNA. To overcome this problem, the exploration of alternative 2D materials has gained considerable interest over the last decade. Here we show that a Ti2C-based MXene nanopore functionalized by hydroxyl groups (−OH) exhibits transverse conductance properties that allow for the distinction between all four naturally occurring DNA bases. We have used a combination of density functional theory and non-equilibrium Green’s function method to sample over multiple orientations of the nucleotides in the nanopore, as generated from molecular dynamics simulations. The conductance variation resulting from sweeping an applied gate voltage demonstrates that the Ti2C-based MXene nanopore possesses high potential to rapidly and reliably sequence DNA. Our findings open the door to further theoretical and experimental explorations of MXene nanopores as a promising 2D material for nanopore-based DNA sensing.

show abstract

Two-dimensional materials as solid-state nanopores for chemical sensing

Abstract: Solid-state nanopore as a versatile alternative to biological nanopore has grown tremendously over the last two decades. It exhibits unique characteristics including mechanical robustness, thermal and chemical stability, easy modifications...

Cited by 17 publications

References 113 publications

Insect olfactory system inspired biosensors for odorant detection

Insect olfactory system inspired biosensors for odorant detection

Fabrication of Nanopore in MoS2-Graphene vdW Heterostructure by Ion Beam Irradiation and the Mechanical Performance

Single-molecule DNA sequencing using two-dimensional Ti2C(OH)2 MXene nanopores: A first-principles investigation

Contact Info

Product

Resources

About