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Nanomaterials, Volume 7, Issue 6

June 2017 - 33 articles

Cover Story: The combination of piezoelectric and polymer materials is an effective way to make the piezoelectric nanogenerator (PENG) possess both the polymer’s optimal flexibility and the ferroelectric material’s high piezoelectric coefficient. The volume ratio of ferroelectric material in the composite is an important factor that determines the PENG’s output performance. However, a systematic theoretical study about this phenomenon is lacking in the literature. In this paper, we studied the output voltage of the BaTiO3/polydimethylsiloxane (PDMS) composite PENG with different volume ratios of evenly distributed BaTiO3 cubes, and found the optimal volume ratio (46%) of the BaTiO3 cubes. At this ratio, the PENG can output the highest voltage, resulting in a trade-off between the surface charge and capacitance of the composite PENG. These results are of practical importance to optimize PENG’s performance. View the paper
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Articles (33)

  • Article
  • Open Access
39 Citations
8,000 Views
11 Pages

Supercapacitors have been one of the highest potential candidates for energy storage because of their significant advantages beyond rechargeable batteries in terms of large power density, short recharging time, and long cycle lifespan. In this work,...

  • Article
  • Open Access
65 Citations
8,112 Views
14 Pages

Biogenic Synthesis of Metal Nanoparticles Using a Biosurfactant Extracted from Corn and Their Antimicrobial Properties

  • Sergio Gómez-Graña,
  • María Perez-Ameneiro,
  • Xanel Vecino,
  • Isabel Pastoriza-Santos,
  • Jorge Perez-Juste,
  • José Manuel Cruz and
  • Ana Belén Moldes

A new and promising biosurfactant extracted from corn steep liquor has been used for the green synthesis of gold and silver nanoparticles (NPs) in a one-step procedure induced by temperature. Most of the biosurfactants proposed in the literature are...

  • Article
  • Open Access
45 Citations
8,455 Views
16 Pages

Designed Synthesis of Nanostructured Magnetic Hydroxyapatite Based Drug Nanocarrier for Anti-Cancer Drug Delivery toward the Treatment of Human Epidermoid Carcinoma

  • Bharath Govindan,
  • Beeseti Swarna Latha,
  • Ponpandian Nagamony,
  • Faheem Ahmed,
  • Muheet Alam Saifi,
  • Abdel Halim Harrath,
  • Saleh Alwasel,
  • Lamjed Mansour and
  • Edreese H. Alsharaeh

Superparamagnetic Fe3O4 nanoparticles on hydroxyapatite nanorod based nanostructures (Fe3O4/HAp) were synthesized using hydrothermal techniques at 180 °C for 12 h and were used as drug delivery nanocarriers for cancer cell therapeutic applications. T...

  • Article
  • Open Access
18 Citations
5,124 Views
10 Pages

In this study, carbonated hydroxyapatite (CHA) nanorods were prepared by a novel hydrothermal method. The crystallinity and chemical structure of synthesized CHA nanorods was characterized by transmission electron microscopy (TEM), X-ray diffraction...

  • Article
  • Open Access
31 Citations
7,305 Views
11 Pages

The use of dye-sensitized solar cells (DSSCs) is widespread owing to their high power conversion efficiency (PCE) and low cost of manufacturing. We prepared multi-shaped Ag nanoparticles (NPs) and introduced them into DSSCs to further enhance their P...

  • Article
  • Open Access
59 Citations
7,466 Views
19 Pages

Rhodamine B (Rh B) is a toxic dye that is harmful to the environment, humans, and animals, and thus the discharge of Rh B wastewater has become a critical concern. In the present study, reduced graphene oxide-supported nanoscale zero-valent iron (nZV...

  • Article
  • Open Access
53 Citations
7,181 Views
15 Pages

Functionalizing Graphene Oxide with Alkylamine by Gamma-ray Irradiation Method

  • Noraniza Ahmad Daud,
  • Buong Woei Chieng,
  • Nor Azowa Ibrahim,
  • Zainal Abidin Talib,
  • Ernee Noryana Muhamad and
  • Zurina Zainal Abidin

A gamma-ray irradiation technique was used to functionalize graphene oxide (GO) with alkylamines of various alkyl chain lengths. Functionalization of the alkyl chains onto the GO was confirmed by nuclear magnetic resonance (1H NMR), Fourier transform...

  • Article
  • Open Access
29 Citations
5,088 Views
11 Pages

In this study, the Electric Spark Discharge Method (ESDM) was employed with micro-electrical discharge machining (m-EDM) to create an electric arc that melted two electrodes in deionized water (DW) and fabricated nano-Au colloids through pulse discha...

  • Article
  • Open Access
15 Citations
6,169 Views
10 Pages

Contrast imaging agents need to be cleared in a reasonable time (less than 72 h), so it is quite urgent to understand the structure, biocompatibility, and metabolism features of imaging agents. In this work, luminescent Cu(I)-GSH complex and their de...

  • Feature Paper
  • Article
  • Open Access
5 Citations
5,671 Views
11 Pages

Heteromer Nanostars by Spontaneous Self-Assembly

  • Caitlin Brocker,
  • Hannah Kim,
  • Daniel Smith and
  • Sutapa Barua

Heteromer star-shaped nanoparticles have the potential to carry out therapeutic agents, improve intracellular uptake, and safely release drugs after prolonged periods of residence at the diseased site. A one-step seed mediation process was employed u...

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Nanomaterials - ISSN 2079-4991