Colloidally stable organic–inorganic hybrid nanoparticles prepared using alkoxysilane-functionalized amphiphilic polymer precursors and mechanical properties of their cured coating film

Polyhedral oligomeric silsesquioxane (POSS) is a kind of organic–inorganic hybrid nanoparticle. This paper introduces the research progress of different kind of POSS organic–inorganic hybrid nanoparticles applied to lithium-ion batteries, fuel batteries, and supercapacitors by researchers on mechanical properties, thermal properties and electrochemistry properties. The results showed that the ionic conductivity of POSS/Li-ion solid polymer electrolyte reached 3.26[Formula: see text][Formula: see text][Formula: see text]10[Formula: see text][Formula: see text]S/cm and mechanical properties were commendable. The proton conductivity of POSS hybrid proton exchange membranes came to the level of 6.46[Formula: see text][Formula: see text][Formula: see text]10[Formula: see text][Formula: see text]S/cm and the mechanical strength was 18[Formula: see text]MPa with less content of POSS. With the inorganic core of POSS, smaller and more uniform multi-pore electrode materials offer a new idea on the fabrication of supercapacitor electrode materials.

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Facile synthesis of core-shell organic–inorganic hybrid nanoparticles with amphiphilic polymer shell by one-step sol–gel reactions

Journal of Polymer Science Part A Polymer Chemistry ◽

10.1002/pola.22511 ◽

2008 ◽

Vol 46 (5) ◽

pp. 1699-1709 ◽

Cited By ~ 12

Author(s):

M. Marini ◽

M. Toselli ◽

S. Borsacchi ◽

G. Mollica ◽

M. Geppi ◽

...

Keyword(s):

Sol Gel ◽

Amphiphilic Polymer ◽

Hybrid Nanoparticles ◽

Core Shell ◽

Facile Synthesis ◽

Polymer Shell ◽

Inorganic Hybrid ◽

One Step

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Rational Design of Ag/ZnO Hybrid Nanoparticles on Sericin/Agarose Composite Film for Enhanced Antimicrobial Applications

International Journal of Molecular Sciences ◽

10.3390/ijms22010105 ◽

2020 ◽

Vol 22 (1) ◽

pp. 105

Author(s):

Wanting Li ◽

Zixuan Huang ◽

Rui Cai ◽

Wan Yang ◽

Huawei He ◽

...

Keyword(s):

Mechanical Properties ◽

Antimicrobial Activity ◽

Composite Film ◽

Water Absorption ◽

Rational Design ◽

Hybrid Nanoparticles ◽

Gram Negative Bacteria ◽

Gram Positive ◽

Gram Negative ◽

X Ray

Silver-based hybrid nanomaterials are receiving increasing attention as potential alternatives for traditional antimicrobial agents. Here, we proposed a simple and eco-friendly strategy to efficiently assemble zinc oxide nanoparticles (ZnO) and silver nanoparticles (AgNPs) on sericin-agarose composite film to impart superior antimicrobial activity. Based on a layer-by-layer self-assembly strategy, AgNPs and ZnO were immobilized on sericin-agarose films using the adhesion property of polydopamine. Scanning electron microscopy, energy-dispersive X-ray spectroscopy, and X-ray powder diffraction spectroscopy were used to show the morphology of AgNPs and ZnO on the surface of the composite film and analyze the composition and structure of AgNPs and ZnO, respectively. Water contact angle, swelling ratio, and mechanical property were determined to characterize the hydrophilicity, water absorption ability, and mechanical properties of the composite films. In addition, the antibacterial activity of the composite film was evaluated against Gram-positive and Gram-negative bacteria. The results showed that the composite film not only has desirable hydrophilicity, high water absorption ability, and favorable mechanical properties but also exhibits excellent antimicrobial activity against both Gram-positive and Gram-negative bacteria. It has shown great potential as a novel antimicrobial biomaterial for wound dressing, artificial skin, and tissue engineering.

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Organic–Inorganic Hybrid Nanoparticles Synthesized with Hypericum perforatum Extract: Potential Agents for Photodynamic Therapy at Ultra-low Power Light

ACS Sustainable Chemistry & Engineering ◽

10.1021/acssuschemeng.0c07036 ◽

2021 ◽

Vol 9 (4) ◽

pp. 1625-1645

Author(s):

Olena Ivashchenko ◽

Łucja Przysiecka ◽

Barbara Peplińska ◽

Dorota Flak ◽

Emerson Coy ◽

...

Keyword(s):

Photodynamic Therapy ◽

Low Power ◽

Hypericum Perforatum ◽

Hybrid Nanoparticles ◽

Ultra Low Power ◽

Inorganic Hybrid

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Mechanical Properties of Pyrolytic "SiOCN" Thin Coatings

MRS Proceedings ◽

10.1557/proc-308-577 ◽

1993 ◽

Vol 308 ◽

Cited By ~ 1

Author(s):

Sandrine Bec ◽

André Tonck ◽

Jean-Luc Loubet

Keyword(s):

Mechanical Properties ◽

Heat Treatment ◽

Young’S Modulus ◽

Young's Modulus ◽

Ceramic Coatings ◽

Optical Observation ◽

Thin Coatings ◽

Polymer Precursors ◽

Polymeric State

ABSTRACTPyrolysis of polymer precursors (polysilazane) is a technologically and economically interesting way to produce thin ceramic coatings. However, many cracks appear and decohesion occurs during pyrolysis when the ceramic coatings (SiOCN) are thicker than 0.5 micrometers. In order to understand these cracking phenomena, the coatings are mechanically characterized by nanoindentation at different stages of the pyrolysis heat treatment.During pyrolysis, the cracking temperature is detected by in-situ optical observation. The thickness of the coatings varies during pyrolysis from 3 micrometers at the polymeric state to 1 micrometer at the ceramic state. The coatings' properties, hardness and Young's modulus are evaluated after heat treatment, taking into account the substrate's influence. A large variation of these properties occurs at the cracking temperature. Both the hardness and the Young's modulus are multiplied by a factor of 10. By analysing these results, we show that cracking is correlated with the evolution of the coatings' mechanical properties during the transformation.

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An Exploratory Investigation of the Mechanical Properties of the Nanostructured Porous Materials Deposited by Laser-Induced Chemical Solution Synthesis

Journal of Micro and Nano-Manufacturing ◽

10.1115/1.4036037 ◽

2017 ◽

Vol 5 (2) ◽

Cited By ~ 2

Author(s):

Cheng Peng ◽

C. Richard Liu ◽

Rohit Voothaluru ◽

Chun-Yu Ou ◽

Zhikun Liu

Keyword(s):

Mechanical Properties ◽

Porous Materials ◽

Nanostructured Materials ◽

Bending Test ◽

Porous Coating ◽

Coating Film ◽

Statistical Regression ◽

Chemical Solution ◽

Solution Synthesis ◽

Nano Indentation

Laser-induced chemical solution synthesis has been recently developed as a new generic method to create porous nanostructured materials for complex and miniaturized devices. The material made by this approach is successfully demonstrated for electrochemical catalytic, nanoscale powders, protective coatings, and other applications. One question has therefore been raised: What are the mechanical properties of the porous materials deposited by the laser-induced chemical solution synthesis? This paper has attempted to explore the mechanical properties of such porous nanostructured materials deposited by this new nanomanufacturing method. This process also offers an innovative opportunity to study the strength of a very simple bonding in additive manufacturing. A thin-film of copper nanoparticles is deposited on copper substrates; then, the microstructure of the deposited film is characterized by scanning electron microscope (SEM), and mechanical properties are investigated by a variety of experiments, such as microhardness test, nano-indentation test, bending test, and adhesion test. The mechanical properties of substrates with surface deposition have been shown to have adequate bond strength (>60 g/mm) to allow effective usage in intended applications. Based on the test results, statistical regression and significant tests have also been carried out. A new model for the nano-indentation of the porous coating (film) is proposed. The empirical results have shown that the effect of coating thickness is more prominent on mechanical properties in the case of thick coating deposition.

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