نتایج جستجو برای: nanoshell
تعداد نتایج: 285 فیلتر نتایج به سال:
Traditional low infrared emissivity coatings based on aluminum flakes cannot own low IR emissivity and low lightness simultaneously. Herein, a new simple efficient method for the synthesis of brown Al/MnO2 composite pigments with low IR emissivity and low lightness is reported, through forming MnO2 layer on aluminum flakes by thermal cracking, then altering the shape and forming nanoshell by st...
Nanocomposites physical properties unexplainable by general mixture laws are usually supposed to be related to interphases, highly present at the nanoscale. The intrinsic dielectric constant of the interphase and its volume need to be considered in the prediction of the effective permittivity of nanodielectrics, for example. The electrostatic force microscope (EFM) constitutes a promising techn...
Imaging guided ablation therapy has been applied in both biomedical research and clinical trials and turned out to be one of the most promising approaches for cancer treatment. Herein, the multifunctional nanocapsules were fabricated through loading perfluorooctylbromide (PFOB) and superparamagnetic iron oxide nanoparticles (SPIOs) into poly(lactic acid) (PLA) nanocapsules (NCs), followed by th...
Scatter-based optical imaging technologies such as Optical Coherence Tomography (OCT) and Reflectance Confocal Microscopy (RCM) offer a unique non-invasive approach to the detection, diagnosis, and monitoring of cancer. In this article, we describe the use of targeted NIRtuned gold nanoshell for imaging in vitro, ex vivo and in vivo. Nanoshells are a new class of optically active nanoparticles ...
Highly symmetric nanoshells are found in many biological systems, such as clathrin cages and viral shells. Many studies have shown that symmetric shells appear in nature as a result of the free-energy minimization of a generic interaction between their constituent subunits. We examine the physical basis for the formation of symmetric shells, and by using a minimal model, demonstrate that these ...
Gold nanorods coated with a uniform titanium dioxide nanoshell have been prepared and used as glucose-oxidase surrogates. Remarkably, this core-shell photocatalytic nanostructure has been able to induce complete oxidation of glucose at near room temperature (32-34 °C) in a wide range of pH values with the aid of a near-infrared (NIR) irradiation source. In contrast, the uncoated gold nanorods e...
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While bulk-sized metal-organic frameworks (MOFs) face limits to their utilization in various research fields such as energy storage applications, nanoarchitectonics is believed to be a possible solution. It is highly challenging to realize MOF nanobubbles with monocrystalline frameworks. By a spatially controlled etching approach, here, we can achieve the synthesis of zeolitic imidazolate frame...
There is an urgent clinical need to monitor the intravenous delivery and bioavailability of circulating nanoparticles used in cancer therapy. This work presents the use of photoplethysmography for the noninvasive real-time estimation of vascular gold nanoshell concentration in a murine subject. We develop a pulse photometer capable of accurately measuring the photoplethysmogram in mice and dete...
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