Beyond Graphene: Chemistry of Group 14 Graphene Analogues: Silicene, Germanene, and Stanene

Hartman, Tomáš; Sofer, Zdeněk

doi:10.1021/acsnano.9b04466

Cited by 101 publications

(71 citation statements)

References 71 publications

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“…liquid-phase exfoliation and unique "tin pest" phenomenon, as well as highly similar structural characteristics between Sn and other homologous nanomaterials such as germanene and silicene [49,50], we thus speculate that combination of cryogenic exfoliation and liquid-phase exfoliation also can be applied to the preparation of 2D SnNSs.…”

Section: Introductionmentioning

confidence: 82%

“…The obtained erythrocyte was then washed with PBS (pH = 7.4) three times for subsequent experiments. Then, red blood cells (100 μL, 8%, v/v) were mixed with 100 μL of SnNSs@ PEG solution at various concentrations (50,100,200, and 400 μg mL −1 ), PBS, or ultrapure water, respectively. The mixtures were then incubated for 8 h at 37 °C.…”

Section: Hemocompatibility Of Snnss@pegmentioning

confidence: 99%

“…Our group also synthesized some 2D nanomaterials such as black phosphorus [ 40 – 44 ], antimonene [ 45 , 46 ], and germanene [ 47 , 48 ] by the liquid-phase exfoliation method. Given the general applicability of liquid-phase exfoliation and unique “tin pest” phenomenon, as well as highly similar structural characteristics between Sn and other homologous nanomaterials such as germanene and silicene [ 49 , 50 ], we thus speculate that combination of cryogenic exfoliation and liquid-phase exfoliation also can be applied to the preparation of 2D SnNSs.…”

Section: Introductionmentioning

confidence: 99%

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Cryogenic Exfoliation of 2D Stanene Nanosheets for Cancer Theranostics

Ouyang

Zhang

et al. 2021

Nano-Micro Lett.

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Stanene (Sn)-based materials have been extensively applied in industrial production and daily life, but their potential biomedical application remains largely unexplored, which is due to the absence of the appropriate and effective methods for fabricating Sn-based biomaterials. Herein, we explored a new approach combining cryogenic exfoliation and liquid-phase exfoliation to successfully manufacture two-dimensional (2D) Sn nanosheets (SnNSs). The obtained SnNSs exhibited a typical sheet-like structure with an average size of ~ 100 nm and a thickness of ~ 5.1 nm. After PEGylation, the resulting PEGylated SnNSs (SnNSs@PEG) exhibited good stability, superior biocompatibility, and excellent photothermal performance, which could serve as robust photothermal agents for multi-modal imaging (fluorescence/photoacoustic/photothermal imaging)-guided photothermal elimination of cancer. Furthermore, we also used first-principles density functional theory calculations to investigate the photothermal mechanism of SnNSs, revealing that the free electrons in upper and lower layers of SnNSs contribute to the conversion of the photo to thermal. This work not only introduces a new approach to fabricate 2D SnNSs but also establishes the SnNSs-based nanomedicines for photonic cancer theranostics. This new type of SnNSs with great potential in the field of nanomedicines may spur a wave of developing Sn-based biological materials to benefit biomedical applications.

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Section: Introductionmentioning

confidence: 82%

Section: Hemocompatibility Of Snnss@pegmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Cryogenic Exfoliation of 2D Stanene Nanosheets for Cancer Theranostics

Ouyang

Zhang

et al. 2021

Nano-Micro Lett.

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“…As such, numerous functionalizations have been performed on silicene and germanene to modify their physical, chemical, and electronic properties, thus improving their stability and widening their bandgaps. Some of these modified analogs include germanane (Ge 6 H 6 ), methyl germanane (Ge 6 (CH 3 ) 6 ), and siloxene (Si 6 H 3 (OH) 3 ) [2,4–9 . ]…”

Section: Introductionmentioning

confidence: 99%

Functionalized 2D Germanene and Silicene Enzymatic System

Chia

Šturala

Webster

et al. 2021

Adv Funct Materials

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In recent years, 2D Group 14 graphane analogs, such as germanane, methyl germanane, and siloxene, have taken materials scientists by storm due to their facile synthesis procedures and the numerous attractive properties proffered. Due to their fascinating properties, these emerging Group 14 graphane analogs are studied for varied applications including supercapacitors, photocatalysts, and sensors. Although several groups have reported the viability of using Group 14 graphane analogs for the construction of biosensors, they are mainly based upon computational studies, and few experimental studies are conducted. This paper aims to experimentally investigate the feasibility of using germanane and siloxene‐based materials as 2D functional support for enzymatic systems. The heterogeneous electron transfer kinetics and the glucose sensing response of the as‐synthesized germanane, methyl germanane, and siloxene are examined, and the most outstanding material, germanane, is employed for further construction of electrochemical glucose biosensor. The fabricated biosensing platform delivers excellent analytical performances, displaying good linearity over various magnitudes of glucose concentrations, and possesses a low detection limit. The findings reported herein showcase the potential of applying these 2D Group 14 graphane analogs for future developments of highly selective and sensitive biosensors for biomedical, environmental monitoring, and food sampling applications.

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“…Even though many researchers have reviewed the preparation, characterization, and application of 2D materials, [40][41][42][43][44][45][46][47] existing articles still lack a comprehensive and systematic overview of 2D group-IV materials. Herein, we present a detailed review that introduces the recent advances of 2D group-IV materials beyond graphene.…”

Section: Introductionmentioning

confidence: 99%

Two‐dimensional materials of group‐IVA boosting the development of energy storage and conversion

Guo

Chen

2020

Carbon Energy

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Graphene, an emerging fabric of carbon atoms, has manifested its versatility in all kinds of fields encompassing electronics, optoelectronics, thermoelectrics, taking advantage of its excellent mechanical strength, exceptional electronic and thermal conductivities, high surface specific area, and so forth. The prosperity of graphene never seen before has led the attention to silicene, siloxene, germanene, stanene, and plumbene due to their promising applications in the quantum spin Hall effect, topological insulator, batteries, capacitors, catalysis, and topological superconductivity. Herein, we review the existing production methods, numerous applications of two‐dimensional group‐IVA materials, and critically discuss the challenges of these materials, providing potential implications to the exploration of uncharted material systems.

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Beyond Graphene: Chemistry of Group 14 Graphene Analogues: Silicene, Germanene, and Stanene

Cited by 101 publications

References 71 publications

Cryogenic Exfoliation of 2D Stanene Nanosheets for Cancer Theranostics

Cryogenic Exfoliation of 2D Stanene Nanosheets for Cancer Theranostics

Functionalized 2D Germanene and Silicene Enzymatic System

Two‐dimensional materials of group‐IVA boosting the development of energy storage and conversion

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