Hydrophilic high-luminescent magnetic nanocomposites

You, Xiaogang; He, Rong; Gao, Feng; Shao, Jun; Pan, Bifeng; Cui, Daxiang

doi:10.1088/0957-4484/18/3/035701

Cited by 62 publications

(48 citation statements)

References 22 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Taniguchi at The International Conference on Production Engineering, Tokyo, from [26][27][28][29] August. He presented the process of using semiconductors, such as thin film deposition and ion beam milling characterized at a level of 1 nm length.…”

Section: Nanotechnologymentioning

confidence: 99%

“…To have a highly sensitive biosensor with a fast response and a specific application, the choice of the material of sensor is very important. Several nanomaterials such as nanowires/nanotubes [24], gold nanoparticles [23], magnetic nanoparticles [25], carbon nanotubes [26] and quantum dots [27] have been investigated to evaluate their application as biosensors. Experiments have looked at their physical, chemical, mechanical, magnetic and optical properties for increased sensitivity, faster response and specific biomolecules recognition.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Synthesising Metal Oxide Materials and Their Composite Nanostructures for Sensing and Optoelectronic Device Applications

Khun¹

2015

Linköping Studies in Science and Technology. Dissertations

View full text Add to dashboard Cite

Research on nanomaterials has been revolutionized in the last few years because of the attractive properties they have in comparison to the bulk phase of similar materials. These properties are physical, chemical, catalytic and optical. Among these nanomaterials, the metal oxide nanostructures have become of particular interest to scientists for the development of different optical, biochemical and biomedical nanodevices. In the present research work using the advantageous features of nanotechnology, high performance nanodevices for optoelectronics with a wide band gap compound nanostructure and highly sensitive sensor devices have been demonstrated. The nanotechnology is used to fabricate sensitive and precise nanodevices based on nanomaterials for the application of sensing.Among metal oxide nanostructures, ZnO, CuO and NiO are attractive materials because of their unique properties; their high surface area to volume ratio, their energy band gap of 3.37 eV, 1.2 eV and 3.7 eV, respectively, biocompatibility, high electron mobility, fast electron transfer rate and they are environmental-friendly in many applications. When used in sensor devices, nanomaterials have indicated high selectivity for possible use to detect the various analytes even in small volumes. Metal oxide nanostructures have shown to be good for optoelectronic nanodevices because of their electrical characteristics, high optical absorption and low-processing temperature.In this thesis, the synthesis of different morphologies of metal oxide semiconductor nanostructures and their composite using the hydrothermal method are demonstrated for various applications. This thesis is divided into three parts:In the first part of this research work, the fabrication of well-aligned ZnO nanorods using different concentrations of composite seed layer of inorganic and organic materials when using the hydrothermal growth method is presented. The effect of the composite seed layer on the i Abstract alignment, density and optical properties of the grown ZnO nanorods is investigated (paper I).Utilizing the advantage of ZnO nanostructure, a comparative study of ZnO nanorods and thin films for chemical and biosensing application was carried out. The ZnO nanorods and thin films were functionalized with strontium ionophore membrane, immobilized the galactose oxidase and lactate oxidase for determining the strontium ions, D-galactose and L-lactic acid, respectively (paper II).In the second part, the effects of different urea concentrations on the morphology of CuO nanostructures is studied as described in paper III. Moreover, CuO nanoflowers were functionalized with cadmium ion ionophore for the detection of Cd ions, while CuO nanosheets were grown by the low temperature growth method and were used for the development of a nonenzymatic glucose sensor, respectively (Paper IV).In the last part of this thesis, composite nanostructures of CuO/ZnO and NiO/ZnO were applied to develop dopamine sensor and fast sensitive UV photodetector, respectively. A nanohybrid of C...

show abstract

Section: Nanotechnologymentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Synthesising Metal Oxide Materials and Their Composite Nanostructures for Sensing and Optoelectronic Device Applications

Khun¹

2015

Linköping Studies in Science and Technology. Dissertations

View full text Add to dashboard Cite

show abstract

“…The preparation and characterization of FMNPs were reported in our previous papers. [25][26][27] The iPS cells were seeded on the cover slips and treated with growth medium containing FMNPs (50 µg/mL) for 4 hours at 37°C with 5% CO 2 . Afterwards, the cells were rinsed with PBS and fixed with 2.5% glutaraldehyde for 30 minutes.…”

Section: Labeling Ips Cells With Fmnpsmentioning

confidence: 99%

Efficient preparation and labeling of human induced pluripotent stem cells by nanotechnology

Ruan¹,

Shen²,

Wang³

et al. 2011

IJN

Self Cite

View full text Add to dashboard Cite

Efficient preparation and labeling of human induced pluripotent stem (iPS) cells is a great challenge in stem cell research and development. With the aim of investigating the feasibility of using nanotechnology to enhance the preparation efficiency of iPS cells and to label iPS cells for long-term tracing and imaging, in this paper, four transcription factor genes, ie, Oct4, Sox2, LIN28, and Nanog, and packaging plasmids such as PSPAX2 and PMD2.G were cotransfected into 293T cells using Generation 5.0 polyamidoamine dendrimer-modified magnetic nanoparticles (dMNPs) as a delivery system. The resultant supernatant liquids were incubated with human fibroblast cells at 37°C for 21 days, then the embryonic stem (ES) cell-like clones were screened, cultured, and identified. Finally, the prepared iPS cells were labeled with fluorescent magnetic nanoparticles (FMNPs). The results showed that dMNPs can efficiently deliver all vectors into 293T cells. The resultant lentiviruses’ titers were 10-fold more than those based on Lipofectamine™ 2000. Reverse transcription polymerase chain reaction analysis showed that four genes (Oct4, Sox2, LIN28, and Nanog) exhibited different expressions in iPS cells. Immunostaining analysis showed that specific surface markers of ES cells such as SSEA-3, SSEA-4, Tra-1-60, and Tra-1-81 were positive in iPS cells, and the terotomas were formed in NOD-SCID mice that were implanted with iPS cells. Red fluorescent signals could be observed in iPS cells labeled with FMNPs by fluorescent microscopy, and the magnetic signals were detected in labeled iPS cells by magnetic resonance imaging. In conclusion, human iPS cells can be efficiently generated using polyamidoamine dMNPs and lentivirus and labeled with FMNPs for long-term observation and tracking, which has great potential application in the research and development of stem cells in the near future.

show abstract

“…Magnetic nanoparticles(MNPs), as shown in Figure.1, because of their superparamagnetic property, have broad application prospects in the terms of thermotherapy [33], magnetic resonance imaging(MRI) [34], tissue and organ repair [35], immunoassay [36], drug/gene delivery [37], cell separation and purification [38], etc. A single component of the stem cell is needed in stem cell therapy.…”

Section: Stem Cell Nanotechnology For Cell Isolationmentioning

confidence: 99%

Advances of Nanotechnology in the Stem Cells Research and Development

Ji¹,

Ruan²,

Cui³

2010

Nano BioMed ENG

Self Cite

View full text Add to dashboard Cite

In decades, stem cell nanotechnology has become a new promising field for stem cell research and development. So, stem cell nanotechnology has attracted lots of researchers' attention and made great progress. The unique properties of nanomaterials and nanostructures which applied in the fundamental research of stem cell-based therapies have been recognized. Nanomaterials and nanotechnology have been highlighted as promising candidates for efficient control over proliferation and differentiation of stem cells, revolutionizing the treatment of neurodegenerative disorders, neuroprotection in traumatic brain injury, improving the osteospecific differentiation and function, tissue engineering scaffold, dental implant application, drug delivery, gene therapy and cell imaging or tracking. Here we summarize the main progress in this field, explore the application prospects in injuries, diseases, regenerative medicine, etc. and discuss the methods and challenges with the aim of improving application of nanotechnology in the stem cell research and development.

show abstract

Hydrophilic high-luminescent magnetic nanocomposites

Cited by 62 publications

References 22 publications

Synthesising Metal Oxide Materials and Their Composite Nanostructures for Sensing and Optoelectronic Device Applications

Synthesising Metal Oxide Materials and Their Composite Nanostructures for Sensing and Optoelectronic Device Applications

Efficient preparation and labeling of human induced pluripotent stem cells by nanotechnology

Advances of Nanotechnology in the Stem Cells Research and Development

Contact Info

Product

Resources

About