diagnosis of cancer using semiconductor quantum dot biomolecule complexes

... one of the simplest forms of quantum dot and the most important feature of these quantum dots is the nontoxicity to the environment and to human body These quantum dots will become new labeling ... energy levels of peptide QD when dressing the vibrational modes of DNA molecules The energy levels of peptide quantum dot can be modeled as traditional quantum dot, which consists of two energy ... a biological semiconductor quantum dot- DNA hybrid system Jin-Jin Li and Ka-Di Zhu∗ Key Laboratory of Artificial Structures and Quantum Control (Ministry of Education), Department of Physics, Shanghai...

Ngày tải lên: 22/06/2014, 00:20

... since none of them alone is useful for the majority of the BC and none of them is specific for cancer or breast tissues No biomarker has been suggested to date for the early diagnosis of BC (24) ... mean age 39.1) Complex protein profiles of sera of 27 women with BC, 24 women with benign breast disease and 37 healthy women were obtained by SELDI-TOF MS analyses using IMAC30-NI beams The spectra ... classification of breast cancer by the WHO (1968) and its prognostic value] Arkh Patol 1980;42(4): 13–19 Singletary SE, Greene FL: Revision of breast cancer staging: the 6th edition of the TNM Classification...

Ngày tải lên: 25/10/2012, 11:15

... expression Breast Cancer Res 2008;10:107 26 Langbein S, Lehmann J, Harder A, Steidler A, Michel MS Protein profiling of bladder cancer using the 2D-PAGE and SELDI-TOF-MS technique Technol .Cancer Res.Treat.2006; ... based on a first pass of signal-noise ratio of and a minimum peak threshold of 20% of all spectra This process was completed with a second pass of peak selection at 0.2% of the mass window, and ... Genetic models of human cancer as a multistep process Paradigm models of colorectal cancer, breast cancer, and chronic myelogenous and acute lymphoblastic leukaemia J Exp Clin Cancer Res.2005;...

Ngày tải lên: 25/10/2012, 11:18

... Alivisatos AP Semiconductor clusters, nanocrystals, and quantum dots Science 271(5251), 933–937 (1996) • Outstanding review paper on quantum • dot (QD) physics 242 Murphy CJ, Coffer JL Quantum dots: ... recently unveiled a host of new tools in the pursuit of improved cancer diagnosis QDs have the unique distinction of being applicable in nearly all facets of clinical diagnosis, from blood screening ... tunable emission of CdSe quantum dots (A) F luorescence image of a series quantum dots excited with an ultraviolet lamp T particle he diameters are shown (B) S chematic illustration of the relative...

Ngày tải lên: 15/02/2014, 05:20

... methylesterification of sialic acid moieties All spectra were obtained in the positive ion mode using MALDI– quadrupole ion trap (QIT)-TOF MS A strategy for discovery of cancer glyco-biomarkers On the basis of ... previously demonstrated the application of this method to the determination of the glycan structure of a form of AFP [10] However, identification of the details of a glycan structural change on a glycoprotein ... Effective incorporation of biomarkers into phase II trials Clin Cancer Res 15, 1898–1905 Discovery of cancer glyco-biomarkers 38 Hanahan D & Weinberg R (2000) The hallmarks of cancer Cell 100, 57–70...

Ngày tải lên: 16/02/2014, 08:20

... available for comparison of the performance of the individual tests, an analysis of results was done using a variety of standards Efficiency of microscopy, culture and PCR in terms of sensitivity, specificity, ... with past history of tuberculosis ! with symptom complex Table 2: Summary : Final diagnosis of tuberculosis patients Tuberculosis patients Diagnostic review Final diagnosis of TB patients Description ... al Utility of nucleic acid amplification techniques for the diagnosis of pulmonary tuberculosis in sub-saharan Africa Int J Tuberc Lung Dis 2001; 5: 364-369 Rattan A PCR for diagnosis of tuberculosis:...

Ngày tải lên: 06/03/2014, 04:20

... Features of Different LCA Models Fitted to the Data Numbers of Classes, Manifest Variables and Dependencies, and Goodness of Fit for the Models Model Number of Latent Classes Number of Manifest ... part of routine examination For HIV testing, specific informed consent was asked and counseling offered Approval for this study was obtained from the relevant authorities of the Ministry of Health ... the public wards of internal medicine of CHK, a 600-bed hospital of national referral center in Rwanda Three hundred consecutive patients who were hospitalized with a cough of at least weeks...

Ngày tải lên: 22/03/2014, 18:20

... science 1.2 Quantum Dots Quantum dots, the so-called nanocrystals, are nano-sized semiconductor particles composed of II-VI group or III-V main group elements Normally, the size of the quantum dots ... response of CdTe/CA quantum dots with different amount of PPIX 35 mM solution (10 μL increment) 33 viii 3.4 Luminescence response of CdTe/L-Cysteine quantum dots with different amount of ... of CdTe/TGA quantum dots with different amount of PPIX 35 mM solution (10 μL increment) 34 3.6 Least square fitting of CdTe/CA quantum dots peak intensity versus different amount of...

Ngày tải lên: 28/04/2014, 15:48

... 1.1 Basics of Quantum Dots Quantum dots are very small crystals of semiconductor materials Their size ranges from about a hundred to a few thousand atoms The diameter of a quantum dot is approximately ... synthesis methods for producing II-VI semiconductor quantum dots.10 2.4 Core-Shell Quantum Dots 2.4.1 Motivation for Core-Shell Quantum Dots Since quantum dots are only a few nanometers in diameter, ... Quantum Dots Work? 10 2.1.1 Semiconductors 10 2.1.2 Quantum Confinement 11 2.1.3 Fluorescence 13 2.2 Quantum Dot Materials 14 2.3 Quantum Dot...

Ngày tải lên: 15/05/2014, 10:25

... http://asp.eurasipjournals.com/content/2011/1/83 Page 14 of 19 Table Correct diagnosis rates of TEP deterministic faults using five PCs (20 simulations for each fault type) Table Weight li of PCi for deterministic fault diagnosis PCi ... P(wj|PCi) quantifies the credibility of algorithm result of using ith PC for fault diagnosis In other words, it reflects the frequencies of ascending orders of index FIn (introduced in Figure 4) ... http://asp.eurasipjournals.com/content/2011/1/83 Table 11 Weight li of PC ifor stochastic fault classification Page 17 of 19 Table 14 Correct diagnosis rates of IDV(0) to IDV(20) using signal templates of six PCs PCi li PCi used: PC1...

Ngày tải lên: 20/06/2014, 22:20

... introduction of PEG-insulin conjugate onto the surface of Q-dots through chemical bonding may confer the combined advantage of PEG and insulin Introduction of PEG onto the surface of nanoparticles ... and imaging cancer cells by folate-decorated, quantum dots (QDs)-loaded nanoparticles of biodegradable polymers Biomaterials 2009, 30:1176 Alivisatos AP, Gu WW, Larabell C: Quantum dots as cellular ... WCW, Bhatia SA: Probing the cytotoxicity of semiconductor quantum dots Nano Letters 2004, 4:11 Yu WW, Chang E, Drezek R, Colvin VL: Water-soluble quantum dots for biomedical applications Biochemical...

Ngày tải lên: 20/06/2014, 22:20

... corresponding area of the quantum ring consisting of the double quantum dots and metallic electrodes The value S may be obtained in the previous well-known experimental work [1] So the magnitude of the magnetic ... of One-Dimensional Wetting Wires During the Growth of In-GaAs/GaAs Quantum Dot Chains Nano Lett 2006, 6:1847-1851 Sablon KA, Lee JH, Wang ZhM, Shultz JH, Salamo GJ: Configuration control of quantum ... temperature-dependent thermopower of few-electron quantum dots Phys Rev B 2007, 75:041301-041304(R) 28 Zhang XM, Chen XS, Lu W: Thermopower of a multilevel quantum dot coupled with leads in Coulomb...

Ngày tải lên: 20/06/2014, 23:20

... Autoradiography of SKBR-3 tumor xenografts showed that the distribution patterns of radioactivity after injection of 600 kBq/kg of 227Th-trastuzumab were inhomogeneous (Figure 8) The smallest of the tumors ... means of each treatment group Discussion The present study of alpha-particle-emitting 227Th-trastuzumab showed a significant dose-dependent inhibition of tumor growth of human SKBR-3 breast cancer ... we suggest that localization of small amounts of 223Ra in bone tissue would be acceptable Furthermore, because of the long half-life of 227 Th and internalization of HER-2 antigen after binding...

Ngày tải lên: 21/06/2014, 01:20

... http://www.nanoscalereslett.com/content/6/1/462 Page of Figure Preparation process of Ag2S quantum dot- sensitized ZnO/TNTs Results and discussion Morphology of the TNTs Figure 2a shows the SEM image of the plain TNT film fabricated ... http://www.nanoscalereslett.com/content/6/1/462 Ag2S quantum dot- sensitized ZnO/TNT electrodes were prepared by the interposition of a ZnO energy barrier between the TNTs and Ag2S quantum dots The ZnO thin layers were formed using wet-chemical ... sensitized with InAs quantum dots J Phys Chem B 2006, 110:25451-25454 Page of 13 Zaban A, Micic OI, Gregg BA, Nozik AJ: Photosensitization of nanoporous TiO2 electrodes with InP quantum dots Langmuir...

Ngày tải lên: 21/06/2014, 01:20

... Figure Models of a multi-terminal spin filter using a quantum dot with SO interaction (a) Impurity Anderson model with three leads There are two energy levels (j = 1, 2) in the quantum dot They are ... reservoirs through quantum wires of width W A hard-wall potential is assumed at the edges of the quantum wires The QD is formed by quantum point contacts on the wires The potential in a quantum wire ... spin-filtering device using a multiterminal QD fabricated on semiconductor heterostructures The efficiency of the spin filter can be larger than 50% Abbreviations QD: quantum dot; STM: scanning...

Ngày tải lên: 21/06/2014, 02:20

... luminescence of InAs quantum dots using in situ Ga-assisted deoxidation of patterned substrates Appl Phys Lett 2008, 93:101908 Kiravittaya S, Heidemeyer H, Shmidt OG: In(Ga)As Quantum Dot Crystals ... Petroff PM, Zhang L, Hu E, Imamoğlu A: A Quantum Dot Single-Photon Turnstile Device Science 2000, 290:2282 Akopian N, Lindner NH, Poem E, Berlatzky Y, Avron J, Gershoni D, Gerardot BD, Petroff ... is given by TEM analysis of a capped sample Figure shows a TEM image of the profile of a defect hole, which was found on a pre-structured sample The different layers of the structure are visible...

Ngày tải lên: 21/06/2014, 05:20

... structure of self-assembled Inas/GaAs quantum dots J Cryst Growth 2007, 301-302:825 doi:10.1186/1556-276X-6-83 Cite this article as: Hu et al.: Improvement of performance of InAs quantum dot solar ... performance of In(Ga)As quantum dot solar cells via light scattering by nanoparticles J Appl Phys 2009, 106:056101 Ngo CY, Yoon SF, Fan WJ, Chua SJ: Effects of size and shape on electronic states of quantum ... roughness is 1.12 nm over an area of 10 × 10 μm2 It is slightly better than the RMS roughness of sample B, which is 1.16 nm for an area of 10 × 10 μm2 From the AFM image of sample C, which contains...

Ngày tải lên: 21/06/2014, 06:20

... (2010) 5:1762–1767 Fig Schematic diagram of an all-Si quantum dot super lattice tandem solar cell [2] 1763 a quartz substrate using magnetron co-sputtering of Si and quartz (SiO2) targets [9] Either ... small as Rsh of the cell is in the order of MX.cm2 The short circuit current increases by a factor of three due to the decrease of Rs Contact and Sheet Resistances To identify the origin of the large ... Other possible solutions include reduction of the barrier height and thickness of the quantum mechanical tunnelling barrier, modification of the composition of the cell’s absorber material, improved...

Ngày tải lên: 21/06/2014, 07:20

... shut off Figure shows the STM image of 1.5 ML of InAs WL just prior to QD formation at 300°C Stripes due to As dimers were clearly observed The image was divided by a 25 25 mesh The pitch of the ... coordinates were measured by using ImageJ software [8, 9] The center coordinates were used for the Voronoi tessellations of the STM view field (Fig 4) and the computation of the nearest neighbor distance ... each cell of 25 25 mesh in Fig rffiffiffiffi S f ¼ ; N where S is the total area of Voronoi cells, which are not touching the frame, and N is the number of valid reconstruction domains The density of each...

Ngày tải lên: 21/06/2014, 08:20

... ML (1.5 ? 0.16 ML) of InAs, S–K dots were fabricated at other place This indicated the difference of growth rates between the dot structure in the hole structure and the S–K dots Figure shows ... collapse of the dot structures were caused by the high mobility of In atoms at this temperature [11–14] Surface Structure Transition at 300°C Under As4 and In Irradiations To prevent the collapse of ... InAs nano dots were fabricated At 430°C, InAs nano dots were also fabricated However, these dots were remained at least 40 s and collapsed less than 1000 s Then, we fabricated InAs nano dots at...

Ngày tải lên: 21/06/2014, 08:20