kylie s style also indexed credibility because of her consistent personal identity performed across time and across genres including the survey questionnaire email interview facebook interactions and private text messaging through the consistent u
Synthesis of water soluble bimetallic nanoclusters with multifunctionalities
... number of Chapter Au and Ag atoms, but also because it resolves the cluster structure of Au-Ag NCs which could shed light on the structural evolution of bi-MNCs Figure 1.4 Cluster structure of ... illustration of (a) one-step and (b) two-step synthesis of bi-MNCs 1.2.1 One-Step or Co-Reduction Synthesis of Bi-MNCs When discussing the historical evolution of one-step synthesis of biMNCs, ... one-step synthesis of bi-MNCs, where two metal ions are simultaneously reduced in the presence of protecting ligand, two-step synthesis usually involves two steps, where the first step is the...
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synthesis and optical properties of au-ag alloy nanoclusters with controlled composition, p26
... dispersion decreases with the increase of Au content in them Absence of bimodal size distribution in the size distribution histograms suggests that the nanoparticles obtained by our synthesis ... by simultaneous reduction of gold and silver ions using sodium citrate as reductor For obtaining bimetallic clusters of true alloy type while using HAuCl4 and AgNO3 as precursors, the solubility ... first batch of ionic solutions the solubility product was above the solubility product (Kps) of AgCl (s) , in the latter batch, the solubility product was below the (Kps) of AgCl (s) To reduce the...
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Báo cáo hóa học: " Laser-Induced, Polarization Dependent Shape Transformation of Au/Ag Nanoparticles in Glass" docx
... concluded that the volume increase of the particles is compensated by a simultaneous decrease of their number The optical spectra also show that the composition of alloy nanoparticles should be similar ... metal-glass nanocomposites Acknowledgments The authors would like to thank the Institute of Solid State Physics of the Friedrich Schiller University of Jena for implantation of glass samples References ... scattering [14] The above-described ultrashort laser pulse processing of this sample resulted in a totally different appearance of the structural characteristics of this particles-in-glass composite material...
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Tài liệu Câu hỏi trắc nghiệm phần kim loại Au, Ag luyện thi ppt
... là: A Dung d ch Fe2(SO4)3 dư C Dung d ch CuSO4 dư B Dung d ch FeSO4 dư D Dung d ch ZnSO4 dư C u 45: Xét c p oxi hóa/kh sau: Mg2+/Mg ; Cr3+/Cr ; Fe2+/Fe ; Ag+/Ag ; Cu2+/Cu Pin i n hoá có su t i ... là: A Au(OH)2.H2O ; Au2O3 C AuOOH ; Au2O3 B AuOOH ; Au3O4 D Au(OH).H2O : Au3O4 C u 17: Thu c th có th dùng phân bi t dung d ch: AgNO3 ; NaOH ; Na2SO4 ; FeCl3 ng l m t nhãn là: A Quỳ tím C CuCl2 ... 19: Ch n c u sai c u sau: A Ion Ag+ dù n ng nh v n có kh s t trùng, di t khu n B Ph n l n Au dùng ch t o h p kim: Au–Cu ; Au–Ni, Au –Ag C B c có tính kh y u vàng có tính kh r t y u D Trong kim...
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Tài liệu Câu hỏi trắc nghiệm phần kim loại Au - Ag pptx
... là: A Dung d ch Fe2(SO4)3 dư C Dung d ch CuSO4 dư B Dung d ch FeSO4 dư D Dung d ch ZnSO4 dư C u 45: Xét c p oxi hóa/kh sau: Mg2+/Mg ; Cr3+/Cr ; Fe2+/Fe ; Ag+/Ag ; Cu2+/Cu Pin i n hoá có su t i ... là: A Au(OH)2.H2O ; Au2O3 C AuOOH ; Au2O3 B AuOOH ; Au3O4 D Au(OH).H2O : Au3O4 C u 17: Thu c th có th dùng phân bi t dung d ch: AgNO3 ; NaOH ; Na2SO4 ; FeCl3 ng l m t nhãn là: A Quỳ tím C CuCl2 ... 19: Ch n c u sai c u sau: A Ion Ag+ dù n ng nh v n có kh s t trùng, di t khu n B Ph n l n Au dùng ch t o h p kim: Au–Cu ; Au–Ni, Au –Ag C B c có tính kh y u vàng có tính kh r t y u D Trong kim...
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Báo cáo khóa học: Human PABP binds AU-rich RNA via RNA-binding domains 3 and 4 pdf
... a single Phe residue in RRM4 to Val caused a large reduction in binding to a U- rich RNA (UUUUGUUGUUUU UUUUCUAG), without having a drastic effect on binding to oligo(A) This result is consistent ... nuclease for 10 before the nuclease was inactivated by addition of EGTA (B) Sequences of the probe and competitor RNAs used in UV crosslinking assays The M8 sequence has UUU motifs converted to CUC ... lung fibroblasts (ATCC, Manassus, VA, USA) was digested with micrococcal nuclease and UV crosslinked as described above but with a UV dose of 750 mJ, in the presence of 78 fmol of probe Samples...
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chuyên đề về Cr - Fe - Cu - Ni - Pb - Zn - Au - Ag - Sn
... D 1s2 2s2 2p6 3s2 3p63d6 4s2 2+ b C u hình electron X A 1s2 2s2 2p6 3s2 3p6 4s2 3d3 B 1s2 2s2 2p6 3s2 3p63d5 2 6 C 1s 2s 2p 3s 3p 3d D 1s 2s2 2p6 3s2 3p63d6 4s2 c Vị trí nguyên tố X bảng tuàn hoàn là: A ô s 26, ... → Cu B CuFeS2 → CuO → Cu → Cu 2S → Cu2O → Cu C CuFeS2 D CuFeS2 → Cu 2S → CuO → Cu C u 282: Từ quặng pirit đồng CuFeS 2, malachit Cu(OH)2.CuCO3, chancozit Cu 2S người ta đi u chế đồng thô có độ tinh ... 1s2 2s2 2p6 3s2 3p6 4s2 3d9 B 1s2 2s2 2p6 3s2 3p6 4s1 3d10 2 6 C 1s 2s 2p 3s 3p 3d 4s D 1s2 2s2 2p6 3s2 3p63d10 4s1 C u 238: Phát bi u không vị trí đồng bảng tuần hoàn? A Đồng chu kì B Đồng nhóm IA C Đồng kim loại chuyển...
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Coupling effects of NaYF4Yb,Er upconversion nanoshells and au ag metallic nanoshells 1
... address the UC fluorescence issues, the effects of surface, surface coatings, and plasmonic on the fluorescence of the UC nanoshells were systematically studied This thesis includes the followings: ... followings: Synthesis of NaYF4:Yb,Er UC nanoshells via thermal decomposition was carried out The microstructure and optical properties were investigated The effects of surface and surface coatings of undoped ... coverage- and distance-dependent fluorescence of the NaYF4:Yb,Er nanoshells were investigated 1.6 Outline of the thesis The outline of this thesis is as follows: Synthesis and characterization of NaYF4:Yb,Er...
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Coupling effects of NaYF4Yb,Er upconversion nanoshells and au ag metallic nanoshells 2
... concentration and volume of hexane solutions of UC nanoshells was used to fabricate all the assemblies in this study The effects of the Au-Ag surface coverage on the fluorescence of the UC nanoshells were ... h The glass was kept in vacuum chamber before use Au-Ag nanoshell layer on glass substrate was prepared using spincoating The Au-Ag nanoshell solution (25 L) of was dropped on a glass substrate ... surface In this thesis, the surface morphology of the samples was investigated using a Zeiss Supra 40 field emission scanning electron microscope (Carl Zeiss, Oberkochen, Germany) The samples...
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Coupling effects of NaYF4Yb,Er upconversion nanoshells and au ag metallic nanoshells 3
... discussed in the following sections 3.4 Effects of surface Assuming a spherical microstructure, the UC active surface area and the UC active volume-normalized surface area of the UC nanoshells, ... on both the inner and outer surfaces of the UC nanoshells increased the total emission intensity by ~19 times of that of the UC nanoshells, and ~5 times of that of solid UC nanoparticles (~15 ... In this study, these UC nanostructures were stabilized using the same surfactant (oleylamine) and dispersed in hexane Therefore, the significant decrease of emission intensity from the solid...
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Coupling effects of NaYF4Yb,Er upconversion nanoshells and au ag metallic nanoshells 4
... minimum at the center of the particle The Au-Ag structure was unlikely a structure of 61 Ag shell/Au shell since the position of the EDX maximum intensities of both Ag and Au of the shells overlapped ... Ag in Au-Ag nanoshells would start by dissolution of Ag atoms at the surface of the nanoshells as the surface atoms have fewer nearest neighbors, thus they are more weakly bound and less thermally ... continued with addition of excess amount of HAuCl4 Instead, the size of the nanoshells increased as the shells grew thicker outward due to the deposition of Au with increasing HAuCl4 as discussed...
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Coupling effects of NaYF4Yb,Er upconversion nanoshells and au ag metallic nanoshells 5
... on the substrate were viewed from side of the nanoshells This assembly was used to study the plasmonic effects of Au-Ag nanoshells on the fluorescence of UC nanoshells under 980-nm NIR laser Fig ... toluene which used as a solvent in the synthesis of Au-Ag nanoshells, as discussed in Chapter The composition of Au and Ag was measured to be 65% and 35%, respectively The dielectric function of ... that of the glass substrate 5.3 Effects of surface coverage The Au-Ag nanoshell layer with different surface coverage % on the substrates was further coated with silica film using sputtering Their...
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Coupling effects of NaYF4Yb,Er upconversion nanoshells and au ag metallic nanoshells 6
... effects of Au-Ag nanoshells on the fluorescence of UC nanoshells This study showed the fluorescence of the UC nanoshells was either enhanced or quenched by Au-Ag nanoshells, depending on the silica ... substrates However, the UC fluorescence quenching efficiency due to non-radiative losses to Au-Ag nanoshells was not quantitatively measured because of the complex UC process Further study should ... Recommendations for future study This work showed the surface effects of UC nanoshells significantly decreased the UC emission intensity compared with their solid nanoscale counterparts By using the protection...
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Optical limiting properties of GO PVA and AU AG PMMA free standing films
... crystals which widely used in lasers The absorption cross-sections of saturable absorbers in excited state are usually smaller than in ground state If the absorption cross-section in excited state ... generation of short laser pulses43 The saturable absorbers are also used for nonlinear filtering to clean up pulse shapes and to process optical signals Recently, saturable absorption has been exhibited ... Polavarapu Lakshminarayana contributed a lot to this thesis I am also grateful to all the members of Ultrafast Spectroscopy for their kind support and assistance I am also thankful to the Department of...
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Preparation of au ag alloy nanoparticles for surface enhanced raman scattering
... Ag NPs with exposure time of minutes and Au-NPs with exposure time of 15 minutes The mixtures of the colloidal Ag and Au NPs were placed into a glass cell and irradiated by nonfocused laser beam ... NPs The UV-Vis absorption spectrum of colloidal Au-NPs (Fig.4) exhibits a characteristic peak of AuNPs at about 521nm The crystalline structure of Au-NPs was also examined by XRD measurement The ... patterns of Au NPs show peaks as Ag-NPs, this is due to close lattice constants of Au and Ag (namely, Au: 4.0786 Å and Ag: 4.0862 Å) The TEM image and size distribution (Fig.5) show Au-NPs are rather...
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Tài liệu Human-induced changes in US biogenic volatile organic compound emissions: evidence from long-term forest inventory data ppt
... particularly unrealistic because it assumes that in all stands, the canopy is perfectly filled and the LAI is 6.0: it was included here as a bounding case to test the robustness of the predictions ... production July average emissions are less relevant than heatwave emissions Causes of change: processes The decomposition into processes revealed that outside the southeastern US, the net increases ... plots in the eastern US The plots were surveyed once in the 198 0s, and again in the 199 0s; thus, it was possible to observe changes in forest structure and composition that occurred between the surveys...
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Báo cáo khoa học: Small heat shock protein Hsp27 prevents heat-induced aggregation of F-actin by forming soluble complexes with denatured actin docx
... T is the absolute temperature, and g is the shear viscosity of the solvent The viscosity of the solutions was measured on an AMVn Automated Micro Viscosimiter (Anton Paar, Graz, Austria) The ... is especially high in heart, striated and smooth muscle [3,13,14], where the expression of actin is also very high It seems very likely that one of the main functions of sHSPs in muscles is their ... parameter of the complexes is mainly determined by the target protein (denatured actin), but independent of the sHSP used This agrees with previous studies showing that mouse Hsp25 and yeast Hsp26, the...
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Báo cáo khoa học: Cd2+-induced aggregation of Escherichia coli pyrophosphatase doc
... PPase possesses three types of metal-binding sites Type sites, of which there are two per monomer in the absence of substrate, are found in the active site cavity and are not involved in intersubunit ... pyrophosphatase (PPase) crystals [23] The bound Ca2+ ion is shown as a black sphere, and its coordination bonds are shown as dashed lines Unprimed and primed amino acid residue numbers and metal ... in the peripheral binding site [9,10,12,13] This segment also contains Val150, one of the metal ligands Therefore, a bound metal ion would act to fix the 147–153 Table The effects of residue substitutions...
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Báo cáo khoa học: Full-length adiponectin protects hepatocytes from palmitate-induced apoptosis via inhibition of c-Jun NH2 terminal kinase doc
... with the severity of the disease [4,5] Excess circulating and non-adipose tissue lipids, in particular long-chain saturated fatty acids, induce apoptosis in a number of cell types, including ... Jung et al Results and Discussion Adiponectin reduces endoplasmic reticulum (ER) stress-mediated apoptosis Hyperlipidemia has been reported to induce ER stress, which may phosphorylate JNK and ... promotes apoptosis and the development and ⁄ or severity of NASH The present study aimed to determine whether adiponectin restricts lipid-mediated apoptosis in hepatocytes and, if so, whether this...
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Báo cáo khoa học: Identification and characterization of a collagen-induced platelet aggregation inhibitor, triplatin, from salivary glands of the assassin bug, Triatoma infestans ppt
... IL, USA) using bovine c-globulin as the standard Isolation and sequencing of cDNA clones Salivary glands of T infestans were dissected from thoraces of unfed adults, and poly A(+) RNA was isolated ... sequences Multiple alignment of triplatin-1 and -2 sequences with pallidipin from T pallidipennis by CLUSTAL W Underlining, asterisks, colons and periods indicate signal sequences, single fully conserved, ... clones) was also found This isoform contains 182 amino acids with a molecular mass of 19.8 kDa Both molecules were predicted to be secretory proteins by the signal p program, and both shared sequence...
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