semiconductor quantum dots for molecular and cellular imaging
Tài liệu MULTICOLOR QUANTUM DOTS FOR MOLECULAR DIAGNOSTICS OF CANCER doc
Ngày tải lên :
15/02/2014, 05:20
... Molecular imaging of cells and tissues (A) 3D imaging of intracellular localization of embedding and fixation processes Nonegrowth hormone and prolactin and their mRNA using quantum dots (Q and confocal ... Mol Diagn 6(2), (2006) Multicolor quantum dots for molecular diagnostics www future-drugs.com 1.2 Time (min) quantum dots 15 10 20 25 30 35 Intensity (au) Quantum dots 0.8 0.6 0.4 0.2 Texas red ... targeting and imaging with semiconductor quantum dots Nature Biotechnol 22(8), 969–976 (2004) • Reports a new class of multifunctional QD • probes for simultaneous tumor targeting and imaging in...
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Báo cáo hóa học: " Investigation of Semiconductor Quantum Dots for Waveguide Electroabsorption Modula" docx
Ngày tải lên :
22/06/2014, 01:20
... verified experimentally and theoretically [28, 29], this is due to actual QDs having a truncated pyramidal shape and a non-zero and non-uniform Ga composition within the dots Note that PC measurement ... that QDs are promising for EAM and the performance of QD-EAM will improve with increasing research efforts Acknowledgments The authors would like to thank Dr Yang Hua for the valuable advice ... Recognizing that the bandgap of In0.15Ga0.85As strain-reducing layer is *1.265 eV (*980 nm) [18], we believed that the subbandgap absorptions at 1100 nm and 1175 nm are due to the first and second excited...
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SYNTHESIS OF CDTE AND PBS SEMICONDUCTOR QUANTUM DOTS AND
Ngày tải lên :
28/04/2014, 15:48
... Therefore the CA stabilized quantum dots are better suited for biological applications such as in vitro imaging and in vivo sensor Mercury doped CdTe quantum dots, namely alloyed HgxCd1-xTe quantum ... getting rid of temporary “traps” for the electrons, holes or excitons, resulting better quantum yield for quantum dots Therefore, in order to achieve photostable quantum dots product, capping or passivation ... range of methods for bio-conjugating colloidal quantum dots [8-11] for cell labeling [12], cell tracking [13], in vivo imaging [14] and DNA detection [15, 16] Colloidal quantum dots with a wide...
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Spectroscopic studies of two dimensional carbon nanostructures and semiconductor quantum dots
Ngày tải lên :
13/09/2015, 21:36
... with one, two, three, four, and six layer regions before (a) and after (b) after annealed at 600 oC for 30 Raman (G band intensity) images of the same graphene before (c) and after (d) annealing ... stability were presented 1.3 Introduction to semiconductor quantum dots Ⅱ-Ⅵ wide band-gap semiconductors quantum dots (QDs), such as CdSe and ZnSe, have attracted much attention Their optical properties ... V Raman and K S Krishnan in liquids and by G S Landsberg and L I Mandelstam in crystals (quartz) in 1928 The effect had been predicted theoretically in 1923 by A Smekal,3 and is therefore sometimes...
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Multi photon excitation and relaxation in colloidal semiconductor quantum dots
Ngày tải lên :
14/09/2015, 08:38
... group II-VI semiconductors 38 2.3 TPA in strong confinement quantum dots 39 2.3.1 General information of TPA transition in quantum dots 40 2.3.2 TPA transition in quantum dots considering band mixing ... image for the structure (left ) and density of states (right) for (a) bulk semiconductor; (b) quantum well (c) quantum wire; (d) quantum dots Fig 1.2 Schematic diagram of the structure (upper) and ... properties of quantum dots As mentioned in the last section, semiconductor materials confined in one, two and three dimensions in the nano-scale are called quantum wells, quantum wires and quantum dots, ...
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MULTI PHOTON ABSORPTION INDUCED PHOTOLUMINESCENCE IN DOPED SEMICONDUCTOR QUANTUM DOTS AND HETERO NANOSTRUCTURES
Ngày tải lên :
17/09/2015, 17:17
... valence-conduction bands mixing based on the eight-band effective-mass model based on Pidgeon and Brown and was experimentally verified for CdTe QDs (Qu and Ji, 2009) This theory serves well for strong quantum ... understanding of the non-linear optical properties of nanomaterials and provide a platform for engineering their non-linear absorption, thereby making it suitable for applications in bio -imaging and ... get a clear understanding of the physical properties of these materials 1.2 Previous Research on Quantum Dots, Nanorods and Hetero-junction nanocomposites 1.2.1 Quantum Dots and Nanorods The optical...
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Tài liệu Báo cáo khoa học: Brain angiogenesis in developmental and pathological processes: regulation, molecular and cellular communication at the neurovascular interface pdf
Ngày tải lên :
18/02/2014, 11:20
... complexity, the simple diffusion of oxygen and nutrients is no longer adequate for survival [14] and a hypoxic gradient forms inside the body to signal for the formation of new vessels In particular, ... pericytes and severe defects in the brain and heart, leading to vascular leakage and edema [55–57] Ligand–receptor signaling between two types of cells may mediate cellular communication and, in ... Cerebral blood flow rate and vessel diameter are not fixed in specific regions, but depend on the local demand for oxygen and nutrients by synaptic transmission and neuronal firing Imaging techniques,...
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Tài liệu Báo cáo khoa học: Molecular and cellular specificity of post-translational aminoacyl isomerization in the crustacean hyperglycaemic hormone family docx
Ngày tải lên :
18/02/2014, 11:20
... moulting and reproductive stage) was not recorded The animals were anaesthetized on crushed ice for 30 before dissection VIH I and II were extracted from 30 H americanus sinus glands (sinus gland ... present in the neurohaemal organs, the sinus glands, as two isoforms (VIH I and II) with an identical 77-amino acid sequence, molecular mass (9135 Da) and pI (6.8) [22] Only one cDNA was cloned, ... antibodies against the different forms was performed on ultrathin sections for examination by electron microscopy Using rb-anti-pQd and gp-anti-dW4, specific d-VIH and d-CHH terminals were observed...
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molecular and cellular biology of neuroprotection in the cns - christian alzheimer
Ngày tải lên :
08/04/2014, 12:51
... Molecular and Cellular Biology of Neuroprotection in the CNS Molecular and Cellular Biology of Neuroprotection in the CNS Edited by Christian ... challenge for basic and clinical neuroscience, with implications for a broad spectrum of neurological and psychiatric diseases, ranging from stroke and brain trauma to Parkinson´s and Alzheimer´s ... at the cellular and molecular level, but who also develops and tests new hypotheses using animal models of acute and chronic brain injury Although many of the new findings hold promise for therapeutic...
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Báo cáo sinh học: "Molecular and cellular correlates of the CIITA-mediated inhibition of HTLV-2 Tax-2 transactivator function resulting in loss of viral replication" pot
Ngày tải lên :
18/06/2014, 22:20
... described for HTLV-2 infection [1] The basis of HTLV mediated cellular transformation is not completely understood, but it involves the viral transactivator protein Tax Tax is essential for HTLV- 1and ... with 100% methanol at -20 for The cells were washed with PBS and blocked for h in PBS containing 0.5% Page of gelatin (Biorad) and 0.5% bovine serum albumine (Sigma), before overnight incubation ... regulated by a series of cellular and molecular mechanisms whose outcome dictates in many instances the subtle equilibrium between control of infection and pathological consequences for the host This...
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o cáo hóa học:" Molecular and cellular correlates of the CIITA-mediated inhibition of HTLV-2 Tax-2 transactivator function resulting in loss of viral replication" potx
Ngày tải lên :
20/06/2014, 04:20
... described for HTLV-2 infection [1] The basis of HTLV mediated cellular transformation is not completely understood, but it involves the viral transactivator protein Tax Tax is essential for HTLV- 1and ... with 100% methanol at -20 for The cells were washed with PBS and blocked for h in PBS containing 0.5% Page of gelatin (Biorad) and 0.5% bovine serum albumine (Sigma), before overnight incubation ... regulated by a series of cellular and molecular mechanisms whose outcome dictates in many instances the subtle equilibrium between control of infection and pathological consequences for the host This...
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Báo cáo toán học: " Strong coupling among semiconductor quantum dots induced by a metal nanoparticle" ppt
Ngày tải lên :
20/06/2014, 20:20
... nanopartities (MNPs), semiconductor quantum dots (SQDs) and nanowires can be constructed for the applications in photonics and optoelectronics [1,2] Studies of these nanostructures are essential for further ... Strong coupling among semiconductor quantum dots induced by a metal nanoparticle Yong He and Ka-Di Zhu∗ Key Laboratory of Artificial Structures and Quantum Control (Ministry of Education), ... cavity quantum electrodynamics (QED), we investigate the light-matter interaction between surface plasmon polaritons (SPP) in a metal nanoparticle (MNP) and the excitons in semiconductor quantum dots...
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báo cáo hóa học:" Strong coupling among semiconductor quantum dots induced by a metal nanoparticle" potx
Ngày tải lên :
21/06/2014, 17:20
... nanopartities (MNPs), semiconductor quantum dots (SQDs) and nanowires can be constructed for the applications in photonics and optoelectronics [1,2] Studies of these nanostructures are essential for further ... Strong coupling among semiconductor quantum dots induced by a metal nanoparticle Yong He and Ka-Di Zhu∗ Key Laboratory of Artificial Structures and Quantum Control (Ministry of Education), ... cavity quantum electrodynamics (QED), we investigate the light-matter interaction between surface plasmon polaritons (SPP) in a metal nanoparticle (MNP) and the excitons in semiconductor quantum dots...
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Báo cáo hóa học: " Submonolayer Quantum Dots for High Speed Surface Emitting Lasers" potx
Ngày tải lên :
22/06/2014, 18:20
... broadly believed to be the best candidates [2–4] for these applications in the foreseeable future, however, the device performance must match the performance demand and respond the above listed challenges ... non-uniform lateral strain distribution caused by the underlying strained islands and different types of correlated structures can be formed [29] The spontaneous formation of ordered arrays of islands ... unfavorable For strained 2D islands there always exists a total energy minimum for a particular island size [23, 30] At finite temperature the island size distribution somewhat broadens [31], and another...
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Báo cáo hóa học: " Nanoparticles for Applications in Cellular Imaging" pot
Ngày tải lên :
22/06/2014, 18:20
... the aid of quantum dots for simultaneous imaging [51] Nanoparticles Used for Multi-modal Analyses Nanoparticles enable multiple new approaches for imaging cellular samples Since quantum dots are ... exploited for use in a variety of different applications including cellular imaging and delivery The major types of nanoparticles that have been used for cellular imaging include polymer/biomacromolecular ... charge, size, and surface modifications Interactions of Nanoparticles and Living Cells The growing selection and understanding of nanoparticles is opening new doors for cellular and medical imaging...
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Molecular and Cellular Signaling docx
Ngày tải lên :
27/06/2014, 10:20
... brought in and out of the cell, and moved back and forth to the surface There is a continual flow of outbound traffic of cargo from the ER and Golgi to organelles and the cell surface, and there ... learn and remember and forget and learn again General References Alberts B, Johnson A, Lewis J, Raff M, Roberts K, and Walker P [2002] Molecular Biology of the Cell (4th ed) New York: Garland Publishers ... genes on and off, and as signaling transducers and intermediaries The signaling and regulatory proteins and associated small molecules make contact with the fixed infrastructure responsible for metabolism,...
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báo cáo khoa học: " Nucleoside conjugates of quantum dots for characterization of G protein-coupled receptors: strategies for immobilizing A2A adenosine receptor agonists" pdf
Ngày tải lên :
11/08/2014, 00:22
... pharmacology and toxicology of quantum dots Toxicol Appl Pharmacol 2009, 238:280-288 Medintz IL, Uyeda HT, Goldman ER, Mattoussi H: Quantum dot bioconjugates for imaging, labeling and sensing ... throughout the reaction and centrifugation process The number of adenosine moieties attached per QD was approximately 100-180 for conjugates and and 50-110 for conjugates and The presence of all ... spectrum and the quantum yield, we used a SpectraMax M5 Microplate Reader In case of the ΦF we diluted four different concentrations of the free QDs and compounds 13 and and recorded the absorbance and...
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Báo cáo y học: "Comparison of different methods to obtain and store liver biopsies for molecular and histological research" pot
Ngày tải lên :
13/08/2014, 13:20
... http://www.comparative-hepatology.com/content/8/1/3 and feasible method for storage for further molecular analysis, and is in agreement with the findings of others for yeast, human renal and uterine myometrial tissues ... (fibrogenesis) staining, and rubeanic acid and rhodanine stains for copper Immunohistochemical evaluation was performed for three different proteins at different (sub )cellular locations keratin-7 ... portal area and periportal parenchyma The tissue architecture is well preserved, with good contrast and sufficient cellular morphology reflected in distinct cellular and nuclear membranes, and sufficient...
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MOLECULAR AND CELLULAR MECHANISMS LEADING TO SIMILAR PHENOTYPES IN DOWN AND FETAL ALCOHOL SYNDROMES
Ngày tải lên :
24/08/2014, 10:37
... University, August 2012 Molecular and Cellular Mechanisms Leading to Similar Phenotypes in Down and Fetal Alcohol Syndromes Major Professor: Randall J Roper Down syndrome (DS) and Fetal Alcohol Syndrome ... to an FAS mouse model and these phenotypes arise from similar molecular and cellular origin We examined craniofacial characteristics of our DS and FAS mouse 14 models by performing microCT scans ... parental alleles while also showing an uncut 246 bp band This produced either two bands for positive or one band for negative as the 71 bp band was unable to be seen on agarose gels This PCR genotyping...
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Molecular and cellular functions of the alternatively spliced isoforms of GDNF receptor complex in neuronal differentiation
Ngày tải lên :
09/09/2015, 10:13
... GFRα2a and GFRα2c but not GFRα2b (A) Expression levels of RET9 and GFRα2 isoforms in wild type (WT) and stably infected PC12 cells PC12 cells were coinfected with mouse RET9 and GFRα2 isoforms ... roles of cAMP-PKA signaling in biphasic and sustained ERK1/2 phosphorylation and neurite outgrowth mediated by ligandactivated GFRα2a and 2c isoforms Figure 3.4 Forskolin enhances the rate of NTN ... Western blotting and fold changes over control were semiquantified SOD-1 and PARP-1 served as specific markers for cytoplasmic and nuclear proteins, respectively The bands of expected molecular weights...
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