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Nanomaterials, Volume 9, Issue 11

November 2019 - 139 articles

Cover Story: The Surface-Enhanced Raman Spectroscopy (SERS) immunoassay consists in bioconjugates of gold nanostars (AuNSs) functionalised with 4-mercaptobenzoic acid as a Raman reporter, and polyclonal anti-horseradish peroxidase antibodies as the detection moiety. Agarose gel electrophoresis is instrumental in determining an effective functionalisation of the AuNSs by the Raman reporter, further conjugation with antibodies and to mimic the final SERS sandwich immunoassay. The optimised SERS-active bioconjugates allowed effective SERS detection down to 0.01 nM of bioconjugates, corresponding to an antigen peroxidase activity of 50 µU. Our results are a proof-of-concept for a SERS-based immunoassay with easy adaptation to alternative antibody–antigen pairs. View this paper.
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Articles (139)

  • Article
  • Open Access
17 Citations
4,983 Views
8 Pages

Influence of Annealing Temperature on Weak-Cavity Top-Emission Red Quantum Dot Light Emitting Diode

  • Chun-Yu Lee,
  • Ya-Pei Kuo,
  • Peng-Yu Chen,
  • Hsieh-Hsing Lu and
  • Ming Yi Lin

19 November 2019

In this report, we show that the annealing temperature in QDs/Mg-doped ZnO film plays a very important role in determining QLEDs performance. Measurements of capacitance and single carrier device reveal that the change of the device efficiency with d...

  • Article
  • Open Access
24 Citations
6,269 Views
9 Pages

Direct Observation of Monolayer MoS2 Prepared by CVD Using In-Situ Differential Reflectance Spectroscopy

  • Yina Wang,
  • Lei Zhang,
  • Chenhui Su,
  • Hang Xiao,
  • Shanshan Lv,
  • Faye Zhang,
  • Qingmei Sui,
  • Lei Jia and
  • Mingshun Jiang

19 November 2019

The in-situ observation is of great significance to the study of the growth mechanism and controllability of two-dimensional transition metal dichalcogenides (TMDCs). Here, the differential reflectance spectroscopy (DRS) was performed to monitor the...

  • Article
  • Open Access
18 Citations
4,141 Views
13 Pages

Antireflection Enhancement by Composite Nanoporous Zeolite 3A–Carbon Thin Film

  • Maksym Stetsenko,
  • Salvatore A. Pullano,
  • Tetiana Margitych,
  • Lidia Maksimenko,
  • Ali Hassan,
  • Serhii Kryvyi,
  • Rui Hu,
  • Chun Huang,
  • Roman Ziniuk and
  • Sergii Golovynskyi
  • + 4 authors

19 November 2019

A straightforward and effective spin-coating technique at 120 °C was investigated for the deposition of a thin nanoporous layer with antireflection properties onto glass and indium tin oxide (ITO) coated glass. A mixture of zeolite 3A powder and...

  • Communication
  • Open Access
5 Citations
5,326 Views
10 Pages

Methane-Mediated Vapor Transport Growth of Monolayer WSe2 Crystals

  • Hyeon-Sik Jang,
  • Jae-Young Lim,
  • Seog-Gyun Kang,
  • Sang-Hwa Hyun,
  • Sana Sandhu,
  • Seok-Kyun Son,
  • Jae-Hyun Lee and
  • Dongmok Whang

19 November 2019

The electrical and optical properties of semiconducting transition metal dichalcogenides (TMDs) can be tuned by controlling their composition and the number of layers they have. Among various TMDs, the monolayer WSe2 has a direct bandgap of 1.65 eV a...

  • Article
  • Open Access
36 Citations
4,268 Views
15 Pages

Enhanced Visible-Light Photocatalytic Activity of Ag QDs Anchored on CeO2 Nanosheets with a Carbon Coating

  • Xiaogang Zheng,
  • Qian Chen,
  • Sihao Lv,
  • Xiaojin Fu,
  • Jing Wen and
  • Xinhui Liu

19 November 2019

Ag quantum dots (QDs) anchored on CeO2 nanosheets with a carbon coating (Ag/CeO2@C) (composites) were prepared via an in situ reduction approach for the photocatalytic degradation of Cr(VI) and tetracycline hydrochloride (TCH) in the visible-light re...

  • Article
  • Open Access
31 Citations
7,932 Views
14 Pages

Synthesis of Au@Pt Core—Shell Nanoparticles as Efficient Electrocatalyst for Methanol Electro-Oxidation

  • América Higareda,
  • Siva Kumar-Krishnan,
  • Amado F. García-Ruiz,
  • José Maya-Cornejo,
  • José L. Lopez-Miranda,
  • Daniel Bahena,
  • Gerardo Rosas,
  • Ramiro Pérez and
  • Rodrigo Esparza

19 November 2019

Bimetallic Au@Pt nanoparticles (NPs) with Pt monolayer shell are of much interest for applications in heterogeneous catalysts because of enhanced catalytic activity and very low Pt-utilization. However, precisely controlled synthesis with uniform Pt-...

  • Article
  • Open Access
14 Citations
3,299 Views
12 Pages

Reveal the Deformation Mechanism of (110) Silicon from Cryogenic Temperature to Elevated Temperature by Molecular Dynamics Simulation

  • Jing Han,
  • Yuanming Song,
  • Wei Tang,
  • Cong Wang,
  • Liang Fang,
  • Hua Zhu,
  • Jiyun Zhao and
  • Jiapeng Sun

18 November 2019

Silicon undergoes a brittle-to-ductile transition as its characteristic dimension reduces from macroscale to nanoscale. The thorough understanding of the plastic deformation mechanism of silicon at the nanoscale is still challenging, although it is e...

  • Article
  • Open Access
65 Citations
4,541 Views
12 Pages

Synthesis of Mn0.5Zn0.5SmxEuxFe1.8−2xO4 Nanoparticles via the Hydrothermal Approach Induced Anti-Cancer and Anti-Bacterial Activities

  • Sultan Akhtar,
  • Suriya Rehman,
  • Munirah A. Almessiere,
  • Firdos Alam Khan,
  • Yassine Slimani and
  • Abdulhadi Baykal

18 November 2019

Manganese metallic nanoparticles are attractive materials for various biological and medical applications. In the present study, we synthesized unique Mn0.5Zn0.5SmxEuxFe1.8−2xO4 (0.01 ≤ x ≤ 0.05) nanoparticles (NPs) by using the hydrother...

  • Article
  • Open Access
10 Citations
3,555 Views
10 Pages

18 November 2019

P25 loaded few layered molybdenum disulfide (MoS2) nanosheets (P25@MoS2) are successfully synthesized through a facile one-step hydrothermal process. The bi-catalytic activities, i.e., photocatalytic and electrocatalytic activities, of the as-prepare...

  • Article
  • Open Access
7 Citations
3,036 Views
13 Pages

18 November 2019

The fabrication of conventional or biodegradable polymers with improved thermal and fire-resistant properties is an important task for their successful application in various branches of the industry. In this work, few-layered molybdenum disulfide wa...

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Nanomaterials - ISSN 2079-4991