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Search for "nanosheets" in Full Text gives 125 result(s) in Beilstein Journal of Nanotechnology.

Fluorescent bioinspired albumin/polydopamine nanoparticles and their interactions with Escherichia coli cells

  • Eloïse Equy,
  • Jordana Hirtzel,
  • Sophie Hellé,
  • Béatrice Heurtault,
  • Eric Mathieu,
  • Morgane Rabineau,
  • Vincent Ball and
  • Lydie Ploux

Beilstein J. Nanotechnol. 2023, 14, 1208–1224, doi:10.3762/bjnano.14.100

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  • deteriorated above pH 11 with, first, a decrease in size before the NP morphology changed into nanosheets [28]. However, in the case of BSA/PDA NPs, the NPs size increased when the pH value was above 6.5. In addition, precipitation, sedimentation, or degradation of the dispersion were not observed, showing
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Published 22 Dec 2023

Dual-heterodyne Kelvin probe force microscopy

  • Benjamin Grévin,
  • Fatima Husainy,
  • Dmitry Aldakov and
  • Cyril Aumaître

Beilstein J. Nanotechnol. 2023, 14, 1068–1084, doi:10.3762/bjnano.14.88

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  • reference substrate, a bulk organic photovoltaic heterojunction thin film, and an optoelectronic interface obtained by depositing caesium lead bromide perovskite nanosheets on a graphite surface. The conclusion provides perspectives for future improvements and applications. Keywords: heterodyne
  • optoelectronic interfaces formed between caesium lead bromide perovskite nanosheets and highly oriented pyrolytic graphite. Kelvin Probe Force Microscopy Background, Amplitude-Modulated Heterodyne KPFM Many KPFM modes rely on the detection of a modulated component of the electrostatic force proportional to the
  • lower density of non-percolating PC71BM clusters (delaying the SPV decay less). Imaging weak surface photovoltage signals: CsPbBr3 nanosheets on HOPG We have just seen that images of SPV magnitude and dynamics can be obtained with high spatial resolution. In this final section, we will show that DHe
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Published 07 Nov 2023

Spatial mapping of photovoltage and light-induced displacement of on-chip coupled piezo/photodiodes by Kelvin probe force microscopy under modulated illumination

  • Zeinab Eftekhari,
  • Nasim Rezaei,
  • Hidde Stokkel,
  • Jian-Yao Zheng,
  • Andrea Cerreta,
  • Ilka Hermes,
  • Minh Nguyen,
  • Guus Rijnders and
  • Rebecca Saive

Beilstein J. Nanotechnol. 2023, 14, 1059–1067, doi:10.3762/bjnano.14.87

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  • with atomic vertical resolution. In several studies, AFM has been used to determine photo-induced height/topography variation in organic–inorganic lead halide perovskites [15], nanosheets [16], and photosensitive polymers [17]. Kelvin probe force microscopy (KPFM), an electrostatic variant of AFM, can
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Published 06 Nov 2023

Nanoarchitectonics of photothermal materials to enhance the sensitivity of lateral flow assays

  • Elangovan Sarathkumar,
  • Rajasekharan S. Anjana and
  • Ramapurath S. Jayasree

Beilstein J. Nanotechnol. 2023, 14, 988–1003, doi:10.3762/bjnano.14.82

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  • nanosheets exhibited a high PCE of 52% at 808 nm [40]. Palladium nanocorollae have shown a photothermal effect due to NIR LSPR with a temperature increase up to 50 °C [36]. Semiconductor nanomaterials: Generation and relaxation of electron–hole pairs are responsible for heat generation in semiconductor
  • nanosheets [92]. The photothermal properties of two-dimensional black phosphorous nanosheets was first utilized by Ren et al. in LFAs for the sensitive detection of norfloxacin in tap water. The nanoscale complex of magnetic upconversion particles and black phosphorus has a characteristic brown colour that
  • analytes within 20 min [91]. The utilization of black phosphorous nanosheets in LFA showcases its potential for sensitive and visual detection of norfloxacin in tap water. Although the LOD is higher than that of the GNP-based assay, the development of an integrated system of mobile phone camera and laser
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Published 04 Oct 2023

Ni, Co, Zn, and Cu metal-organic framework-based nanomaterials for electrochemical reduction of CO2: A review

  • Ha Huu Do and
  • Hai Bang Truong

Beilstein J. Nanotechnol. 2023, 14, 904–911, doi:10.3762/bjnano.14.74

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  • framework (ZIF) nanosheets as efficient material for electrochemical CO2 conversion [39]. 2D Ni(Im)2 materials with various thicknesses were fabricated through varying centrifugation speeds (Figure 2a). The outcome revealed that the optimal sample, possessing a thickness of 5 nm, yielded the highest
  • by Wu et al., Cu-based MOF nanosheets were utilized for CO2 reduction to formate and acetate (Figure 5a,b) [49]. The authors observed that Cu2+ nodes underwent conversion to copper oxides under operational conditions. The presence of these species, along with a porphyrin–Cu(II) complex, resulted in
  • 2D Ni(Im)2-15 nm, (d) durability test and FE of 2D Ni(Im)2-5 nm at −0.85 V vs RHE for 14 h. Figure 2 was adapted with permission of The Royal Society of Chemistry, from [39], (“Ultrathin 2D nickel zeolitic imidazolate framework nanosheets for electrocatalytic reduction of CO2” by J.-X. Wu et al
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Published 31 Aug 2023

Metal-organic framework-based nanomaterials as opto-electrochemical sensors for the detection of antibiotics and hormones: A review

  • Akeem Adeyemi Oladipo,
  • Saba Derakhshan Oskouei and
  • Mustafa Gazi

Beilstein J. Nanotechnol. 2023, 14, 631–673, doi:10.3762/bjnano.14.52

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Published 01 Jun 2023

Conjugated photothermal materials and structure design for solar steam generation

  • Chia-Yang Lin and
  • Tsuyoshi Michinobu

Beilstein J. Nanotechnol. 2023, 14, 454–466, doi:10.3762/bjnano.14.36

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  • , chemical and thermal stabilities, and insolubility in water and other conventional solvents. Therefore, several studies have applied PPy as a PTM for SSG [28][29][30][31][32][33]. In 2019, Wang et al. fabricated multilayered PPy nanosheets with surface structures of wrinkles and ridges, spontaneously
  • formed by sequential polymerization on paper substrates, to enhance their light capturing capability (Figure 6a) [32]. Transmission and diffuse reflectance measurements of the PPy nanosheets confirmed that the multilayer PPy nanosheets on the paper substrate exhibited a distinct broadband absorption in
  • the spectral range of terrestrial solar irradiation (Figure 6b and Figure 6c). Single-layer PPy nanosheets transmit 0.2–0.3% of light, while two or more layers of the PPy nanosheets exhibit a very low transmittance over the entire solar spectrum. It is interesting to note that the light absorption
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Published 04 Apr 2023

Molecular nanoarchitectonics: unification of nanotechnology and molecular/materials science

  • Katsuhiko Ariga

Beilstein J. Nanotechnol. 2023, 14, 434–453, doi:10.3762/bjnano.14.35

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  • . Functional exploration through material accumulation and organization has also been widely conducted. The manipulation of precise molecular alignments and photochemical properties through multiple electrostatic interactions with two-dimensional clay mineral nanosheets has been summarized by Ishida [102]. Yue
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Published 03 Apr 2023

Plasmonic nanotechnology for photothermal applications – an evaluation

  • A. R. Indhu,
  • L. Keerthana and
  • Gnanaprakash Dharmalingam

Beilstein J. Nanotechnol. 2023, 14, 380–419, doi:10.3762/bjnano.14.33

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Published 27 Mar 2023

Bismuth-based nanostructured photocatalysts for the remediation of antibiotics and organic dyes

  • Akeem Adeyemi Oladipo and
  • Faisal Suleiman Mustafa

Beilstein J. Nanotechnol. 2023, 14, 291–321, doi:10.3762/bjnano.14.26

Graphical Abstract
  • photocatalyst that can be applied industrially for the remediation of a variety of pollutants in contaminated water. First, photocatalytic activity is significantly influenced by the morphology (e.g., nanoplates, nanotubes, nanowires, nanorods, nanocuboids, nanoflakes, nanosheets, nanocapsules, nanocasts, or
  • semiconductor and a noble metal with an appropriate work function. A unidirectional charge transfer is enabled by the Schottky potential barrier, increasing charge density and separation [72]. Shen et al. [166] created a Schottky junction by synthesising NiSe2 nanosheets on top of BiVO4 nanosheets using a
  • effectively prevent charge carriers from recombining, increasing the photoactivity of BiFeO3. For instance, Wang et al. [180] synthesised spindle-like g-C3N4/BiFeO3 nanosheets, and the nanocomposite successfully degraded methyl orange by 75% under visible light, which is better than g-C3N4 or BiFeO3 alone
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Published 03 Mar 2023

Liquid phase exfoliation of talc: effect of the medium on flake size and shape

  • Samuel M. Sousa,
  • Helane L. O. Morais,
  • Joyce C. C. Santos,
  • Ana Paula M. Barboza,
  • Bernardo R. A. Neves,
  • Elisângela S. Pinto and
  • Mariana C. Prado

Beilstein J. Nanotechnol. 2023, 14, 68–78, doi:10.3762/bjnano.14.8

Graphical Abstract
  • nanosheets [6]. The energy may be provided by an ultrasonic bath, a shear force mixer, or a tip sonicator. The solution serves three purposes: it provides a medium to propagate the mechanical energy, suspends the exfoliated nanosheets, and prevents them from agglomerating again. The versatility of the method
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Published 09 Jan 2023

Photoelectrochemical water oxidation over TiO2 nanotubes modified with MoS2 and g-C3N4

  • Phuong Hoang Nguyen,
  • Thi Minh Cao,
  • Tho Truong Nguyen,
  • Hien Duy Tong and
  • Viet Van Pham

Beilstein J. Nanotechnol. 2022, 13, 1541–1550, doi:10.3762/bjnano.13.127

Graphical Abstract
  • materials (Figure 1b). This agrees with the results of previous publications in which hydrothermal methods were applied [24][25][26]. The SEM image of the g-C3N4 material shows the uniform nanosheets that were fabricated by the melamine pyrolysis method (Figure 1c). After the deposition of 2D materials MoS2
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Published 16 Dec 2022

LED-light-activated photocatalytic performance of metal-free carbon-modified hexagonal boron nitride towards degradation of methylene blue and phenol

  • Nirmalendu S. Mishra and
  • Pichiah Saravanan

Beilstein J. Nanotechnol. 2022, 13, 1380–1392, doi:10.3762/bjnano.13.114

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  • -light-driven photocatalytic activity of MBN-80 over the nonresponsive photoinactive HBN. (a) HR-XRD plots for HBN and MBN-80, (b–d) SEM images for HBN, MBN-25, MBN-50, and (e, f) MBN-80. HRTEM images for (g, h) MBN-80 nanosheets, (i) HAADF STEM image, and (j–m) elemental mapping of B, N, C, and O in MBN
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Published 22 Nov 2022

Recent trends in Bi-based nanomaterials: challenges, fabrication, enhancement techniques, and environmental applications

  • Vishal Dutta,
  • Ankush Chauhan,
  • Ritesh Verma,
  • C. Gopalkrishnan and
  • Van-Huy Nguyen

Beilstein J. Nanotechnol. 2022, 13, 1316–1336, doi:10.3762/bjnano.13.109

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  • regular structures. The aqueous NH3 solution provided OH− ions for the successful exchange of I−, and the result was the synthesis of Bi7O9I3. The Bi7O9I3/NTC has evenly distributed Bi7O9I3 nanostructures in the shape of lanterns formed of extremely thin nanosheets with a thickness of less than 10 nm on
  • from solution during in two hours, suggesting a greater photocatalytic effectiveness than that of pure BiOI. To deposit metallic Bi on Bi2WO6 nanosheets, an in situ reduction approach using NaBH4 as the reducing agent was used [64]. Compared to pure Bi2WO6, Bi-coated Bi2WO6 absorbs more visible light
  • plasmonic photocatalyst. Nanospheres, nanorods, and nanosheets can be synthesized using various techniques. Hydrothermal calcination, template synthesis, precipitation, reverse micro-emulsion, sonochemical procedures, and microwave methods are typical techniques for fabricating Bi-based nanostructures [77
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Published 11 Nov 2022

Application of nanoarchitectonics in moist-electric generation

  • Jia-Cheng Feng and
  • Hong Xia

Beilstein J. Nanotechnol. 2022, 13, 1185–1200, doi:10.3762/bjnano.13.99

Graphical Abstract
  • ]. This viewpoint was confirmed by many experiments later, such as the electrical signal generated by the flow of water through single-walled carbon nanotubes [7], carbon nanosheets [8], and nanoparticles [9]. Regarding the principle of this phenomenon, the common explanation is that charge transfer
  • nanoparticles, nanowires, and nanosheets. In the construction of devices, nanomaterial units are stacked in thin layers or blocks, and gaps are formed between the units, allowing for the formation of nanoscale networks in the stacked regions. When the nanoparticles, nanowires, or nanosheets are stacked in a non
  • can be easily grown on substrates to form nanoscale networks and perform well in MEGs due to their unique electron transport properties [2][47][48]. This includes Al2O3 [49], MoS2 [50][51], Ni–Al layered double hydroxide (LDH) [52], MoS2/SiO2 composites [53], TiO2 [54], and Ti3C2Tx MXene nanosheets
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Published 25 Oct 2022

Electrocatalytic oxygen reduction activity of AgCoCu oxides on reduced graphene oxide in alkaline media

  • Iyyappan Madakannu,
  • Indrajit Patil,
  • Bhalchandra Kakade and
  • Kasibhatta Kumara Ramanatha Datta

Beilstein J. Nanotechnol. 2022, 13, 1020–1029, doi:10.3762/bjnano.13.89

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  • electrocatalyst. Results and Discussion The microwave-assisted one-pot synthesis connecting graphene oxide (GO) nanosheets with bi- and trimetallic precursors under alkaline conditions is presented in Figure 1. GO serves as functional network and conducting matrix, while PVP acts as structure-directing agent
  • analysed through scanning electron microscope (SEM). For the bimetallic NPs supported on rGO, we observe spherical and triangular particles distributed over few-layered rGO nanosheets. The uniform distribution of the bimetallic NPs over the edges and the surface of the rGO highlights the importance of the
  • functional layered scaffold anchoring metal NPs (Figure S3a,b, Supporting Information File 1). Likewise, for the trimetallic NPs anchored on the rGO support, we observe various sizes and morphologies on multilayered rGO nanosheets. The variation in the morphology stems from the fusion of Cu and Co into Ag
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Published 26 Sep 2022

Recent advances in nanoarchitectures of monocrystalline coordination polymers through confined assembly

  • Lingling Xia,
  • Qinyue Wang and
  • Ming Hu

Beilstein J. Nanotechnol. 2022, 13, 763–777, doi:10.3762/bjnano.13.67

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  • particles were squeezed by ice in a 2D space, forming nanosheets. 2D monocrystalline coordination polymers are anisotropic and, thus, very suitable to enhance inter-crystal interaction by forming laminar stacking superstructures. This concept was earlier demonstrated by applying a solution-based layer-by
  • assemble 2D coordination polymers. To facilitate the assembly of 2D coordination polymers, a modular assembly strategy was developed [144][145]. In the process, the hydrophobic 2D coordination polymers nanosheets were dispersed in ethanol first. Then, the suspension was spread on the surface of water. The
  • nanosheets spontaneously and precisely organized into films at the interface laminarly. The films could be easily transferred to other substrates, and showed superprotonic conductivity, which may be promising for fuel cells. The assembly process of 2D coordination polymer nanosheets could be confined inside
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Published 12 Aug 2022

Reliable fabrication of transparent conducting films by cascade centrifugation and Langmuir–Blodgett deposition of electrochemically exfoliated graphene

  • Teodora Vićentić,
  • Stevan Andrić,
  • Vladimir Rajić and
  • Marko Spasenović

Beilstein J. Nanotechnol. 2022, 13, 666–674, doi:10.3762/bjnano.13.58

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  • et al. [12] as a synthesis method with high potential for scaling. Since then, LPE has developed into a common, highly scalable method for graphene synthesis in liquid media. This method is used for the production of 2D nanosheets with lateral sizes ranging from 100 nm to 100 µm and thicknesses in
  • then break up the bulk 2D materials into mono- and few-layer nanosheets [15][16]. The choice of solvent for LPE is made based on surface energy considerations, compatible solvents include NMP, dimethylformamide (DMF), N,N-dimethylacetamide (DMA), γ-butyrolactone (GBL), 1,3-dimethyl-2-imidazolidinone
  • the solvent of choice because of its favorable properties regarding LB deposition [14]. 1 mL of dispersion was initially centrifuged at a rate of 1500 rpm (relative centrifugal force, RCF, equal to 206g). The obtained centrifugation sediment contained the largest nanosheets of the initial dispersion
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Published 18 Jul 2022

Comparative molecular dynamics simulations of thermal conductivities of aqueous and hydrocarbon nanofluids

  • Adil Loya,
  • Antash Najib,
  • Fahad Aziz,
  • Asif Khan,
  • Guogang Ren and
  • Kun Luo

Beilstein J. Nanotechnol. 2022, 13, 620–628, doi:10.3762/bjnano.13.54

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  • the extended theoretical observation of thermal conductivity and its correlation with different percentages of mass fraction of graphene nanosheets loaded into ethylene glycol (EG). An increasing trend of the thermal conductivity of the nanofluid was observed (i.e., from 0.246 to 0.251 W·m−1·K−1 at
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Published 07 Jul 2022

Theoretical understanding of electronic and mechanical properties of 1T′ transition metal dichalcogenide crystals

  • Seyedeh Alieh Kazemi,
  • Sadegh Imani Yengejeh,
  • Vei Wang,
  • William Wen and
  • Yun Wang

Beilstein J. Nanotechnol. 2022, 13, 160–171, doi:10.3762/bjnano.13.11

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  • . For instance, the 1T′ WSe2 nanosheets exhibit metallic nature demonstrated by an enhanced electrostatic activity for hydrogen evolution reaction (HER) as compared to other nanosheets [9]. In addition, 1T′ WSe2 nanosheets can be produced in high yield and in a reproducible and controlled manner, which
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Published 02 Feb 2022

Tin dioxide nanomaterial-based photocatalysts for nitrogen oxide oxidation: a review

  • Viet Van Pham,
  • Hong-Huy Tran,
  • Thao Kim Truong and
  • Thi Minh Cao

Beilstein J. Nanotechnol. 2022, 13, 96–113, doi:10.3762/bjnano.13.7

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  • density showed improved photocatalytic performances. Besides, the OV density contributes to the rise of the valence band maximum and a decrease of the bandgap energy of SnO2 materials. Morphology There are many shapes of SnO2, for example, nanoparticles, nanocubes, nanorods, nanosheets, nanospheres
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Published 21 Jan 2022

Morphology-driven gas sensing by fabricated fractals: A review

  • Vishal Kamathe and
  • Rupali Nagar

Beilstein J. Nanotechnol. 2021, 12, 1187–1208, doi:10.3762/bjnano.12.88

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  • ) [10][11][12][13][14][15][16], nanorods [17][18][19][20], nanosheets [21][22][23], nanobelts [24][25], and nano/micro-spheres/cubes/polyhedrons [26][27][28][29] with enhanced sensitivity as a gas sensor. A rich collection of research articles and review papers on distinct morphological nanostructured
  • and additionally served as the conduction path for electron transportation, which led to an improvement in gas sensing behavior of the composite sensor. The technique yielded structures with a fractal dimension of 1.73. In another study, NO2 sensing by WO3 dendritic nanosheets, prepared by Xiao et al
  • . using a solvothermal method, was reported [80]. Here, the authors discussed a five-stage growth process comprising polymerization, nucleation, primary growth, secondary growth, and final growth from single nanosheets to final dendritic structures. Figure 18a and Figure 18b show SEM images of
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Published 09 Nov 2021

Assessment of the optical and electrical properties of light-emitting diodes containing carbon-based nanostructures and plasmonic nanoparticles: a review

  • Keshav Nagpal,
  • Erwan Rauwel,
  • Frédérique Ducroquet and
  • Protima Rauwel

Beilstein J. Nanotechnol. 2021, 12, 1078–1092, doi:10.3762/bjnano.12.80

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  • CQD-based devices with configuration ITO/PEDOT:PSS (40 nm)/CQD (20 nm)/TPBI (40 nm)/LiF/Al [95]. These results clearly suggest that CQD are potential phosphors in the fabrication of white LED [96][97][98][99][100]. Prasad et al. have incorporated graphene nanosheets in MEH-PPV in order to evaluate the
  • optimum quantity (0–0.1 wt %) for the luminance of the device [54]. They observed an approximate six-fold increase in the PL emission for 0.005 wt % of graphene nanosheets. The reason for the increased PL emission is attributed to the higher charge carrier mobility in graphene nanostructures, which
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Published 24 Sep 2021

Progress and innovation of nanostructured sulfur cathodes and metal-free anodes for room-temperature Na–S batteries

  • Marina Tabuyo-Martínez,
  • Bernd Wicklein and
  • Pilar Aranda

Beilstein J. Nanotechnol. 2021, 12, 995–1020, doi:10.3762/bjnano.12.75

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  • the nanometer scale in form of nanoparticles, nanorods, nanofibers, nanoarrays, and nanosheets, which are more tolerant to dilative stress [75][76]. In addition, these nanostructures can be incorporated into a flexible carbon matrix for further accommodation of mechanical strain (Figure 10A) [74][77
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Published 09 Sep 2021

Comprehensive review on ultrasound-responsive theranostic nanomaterials: mechanisms, structures and medical applications

  • Sepand Tehrani Fateh,
  • Lida Moradi,
  • Elmira Kohan,
  • Michael R. Hamblin and
  • Amin Shiralizadeh Dezfuli

Beilstein J. Nanotechnol. 2021, 12, 808–862, doi:10.3762/bjnano.12.64

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Published 11 Aug 2021
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