Raman spectroscopy studies of black phosphorus

Liu, Y.; Zou, Jiaxin; Chen, Shurui; Zhong, Bo; Wang, Yingying; Wang, Huatao; Huang, Xiaoxiao

doi:10.1016/j.saa.2022.120861

Cited by 15 publications

(9 citation statements)

References 37 publications

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“…This result indicates that the structure of BPs did not change after being loaded on the HA coating. 32,33 The above results mutually prove that BPs could be successfully loaded on the surface of implants coated with HA to develop a BPs@HA coating by the current method. BPs are emerging 2D layer-structured materials that possess unique physicochemical properties such as excellent photothermal conversion performance.…”

Section: ■ Results and Discussionsupporting

confidence: 64%

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Black-Phosphorus-Nanosheet-Reinforced Coating of Implants for Sequential Biofilm Ablation and Bone Fracture Healing Acceleration

Yuan

Zhou

et al. 2022

ACS Appl. Mater. Interfaces

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Incurable implant-related infection may cause catastrophic consequences due to the existence of a biofilm that resists the infiltration of host immune cells and antibiotics. Innovative approaches inspired by nanomedicine, e.g., engineering innovative multifunctional bionic coating systems on the surface of implants, are becoming increasingly attractive. Herein, 2D black phosphorus nanosheets (BPs) were loaded onto a hydroxyapatite (HA)-coated metal implant to construct a BPs@HA composite coating. With its photothermal conversion effect and in situ biomineralization, the BPs@HA coating shows excellent performances in ablating the bacterial biofilm and accelerating fracture healing, which were verified through both in vitro and in vivo studies. Moreover, differentially expressed genes of bone formation and bone mesenchymal stem cells (BMSCs) regulated by the BPs@HA coating were identified using absolute quantitative transcriptome sequencing followed by the screening of gene differential expressions. A functional enrichment analysis reveals that the expression of core markers related to BMSC differentiation and bone formation could be effectively regulated by BPs through a metabolism-related pathway. This work not only illustrates the great potential in clinical application of the BPs@HA composite coating to eliminate bacteria and accelerate bone fracture healing but also contributes to an understanding of the underlying molecular mechanism of osteogenesis physiological function regulation based on an analysis of absolute quantitative transcriptome sequencing.

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Section: ■ Results and Discussionsupporting

confidence: 64%

“…The Raman spectrum (Figure j) shows that three characteristic peaks are located at around 350, 429, and 455 cm –1 , corresponding to the A 1g , B 2g , and A 2g modes of BPs, respectively. This result indicates that the structure of BPs did not change after being loaded on the HA coating. , …”

Section: Resultsmentioning

confidence: 78%

Black-Phosphorus-Nanosheet-Reinforced Coating of Implants for Sequential Biofilm Ablation and Bone Fracture Healing Acceleration

Yuan

Zhou

et al. 2022

ACS Appl. Mater. Interfaces

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“…The Raman spectra of BPbulk show three characteristic peaks at 364.5 � , 440.5, and 467.8 cm −1 , corresponding to A g 1 , B 2g , and A g 2 vibration modes, respectively. 41 These peaks remain in the Raman diagram of BP-NH 2 but show a red-shift of 5−8 cm −1 , which proved that the thickness of BP nanosheets increases after surface functionalization. 42 3.2.…”

Section: Structure and Composition Of Bp-nhmentioning

confidence: 80%

Optimization of Flexible Nacre-Like Cellulose Nanofiber Films by a Covalent Overlapping Method: Excellent Thermal Conductivity and Superior Flame Resistance

Guo

Peng

Wang

et al. 2023

Ind. Eng. Chem. Res.

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Facing the explosive growth of heat flux in microelectronic equipment, advanced thermal management materials should not only ensure the safe and stable operation of equipment, but also have the ability to withstand fire risks. Carbon materials such as graphene are subject to many restrictions in use due to their inherent high conductivity. Hexagonal boron nitride (h-BN) is often used to blend with polymers to prepare flexible thermal management materials due to its excellent electrical insulation and thermal conductivity. However, its further application is limited by its insufficient flame resistance and limited improvement of thermal conductivity at low filling levels. In this paper, urea-assisted ball milling is used to achieve the amination of boron nitride nanosheets (BNNS) and black phosphorus (BP), which creates the covalent bond between the filler and the cellulose. With the overlapping between small-size BP and large-size BNNS, the thermal conductivity, flame resistance, and mechanical properties of the film are significantly enhanced. Accordingly, the cellulose nanofiber (CNF)-based film has a high thermal conductivity of 42.29 W m–1 K–1 at 50 wt % loading (40 wt % BNNS-NH2 and 10 wt % BP-NH2), which is 777% higher than that of pure CNF. In addition, the peak heat release rate and total heat release of CBP10 decrease by 80.3 and 64.7%, respectively, compared with pure CNF, and the residue is more complete and denser, indicating that the film can effectively reduce and delay the fire hazard.

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“…[81c] Thickness-dependent behavior was also analyzed for BP-the more intensive SERS spectra were recorded on BP with a thinner layer giving an LoD of 10 −6 m (Figure 12a and Table 2). [92] However, due to the complexity of mechanical peeling during preparation, the authors could not identify the exact number of BP layers. The lower LoD compared to TMDCs could be explained by the use of MB and CV instead of R6G with the absorption at ≈530 nm.…”

Section: Nanothickness-dependent Properties Of 2d Materials For Sersmentioning

confidence: 99%

Section: Novel 2d Materialsmentioning

confidence: 99%

New Trends in Nanoarchitectured SERS Substrates: Nanospaces, 2D Materials, and Organic Heterostructures

Guselnikova

Lim

Kim

et al. 2022

Small

105

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This article reviews recent fabrication methods for surface‐enhanced Raman spectroscopy (SERS) substrates with a focus on advanced nanoarchitecture based on noble metals with special nanospaces (round tips, gaps, and porous spaces), nanolayered 2D materials, including hybridization with metallic nanostructures (NSs), and the contemporary repertoire of nanoarchitecturing with organic molecules. The use of SERS for multidisciplinary applications has been extensively investigated because the considerably enhanced signal intensity enables the detection of a very small number of molecules with molecular fingerprints. Nanoarchitecture strategies for the design of new NSs play a vital role in developing SERS substrates. In this review, recent achievements with respect to the special morphology of metallic NSs are discussed, and future directions are outlined for the development of available NSs with reproducible preparation and well‐controlled nanoarchitecture. Nanolayered 2D materials are proposed for SERS applications as an alternative to the noble metals. The modern solutions to existing limitations for their applications are described together with the state‐of‐the‐art in bio/environmental SERS sensing using 2D materials‐based composites. To complement the existing toolbox of plasmonic inorganic NSs, hybridization with organic molecules is proposed to improve the stability of NSs and selectivity of SERS sensing by hybridizing with small or large organic molecules.

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Raman spectroscopy studies of black phosphorus

Cited by 15 publications

References 37 publications

Black-Phosphorus-Nanosheet-Reinforced Coating of Implants for Sequential Biofilm Ablation and Bone Fracture Healing Acceleration

Black-Phosphorus-Nanosheet-Reinforced Coating of Implants for Sequential Biofilm Ablation and Bone Fracture Healing Acceleration

Optimization of Flexible Nacre-Like Cellulose Nanofiber Films by a Covalent Overlapping Method: Excellent Thermal Conductivity and Superior Flame Resistance

New Trends in Nanoarchitectured SERS Substrates: Nanospaces, 2D Materials, and Organic Heterostructures

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