excerpts it is particularly interesting that mark seemed comfortable teasing kylie on facebook because this was the only extended conversation he had with her on facebook during the period of data collation as such online teasing was al
Synthesis of water soluble bimetallic nanoclusters with multifunctionalities
Ngày tải lên :
01/10/2015, 17:27
... Bi-MNCs When discussing the historical evolution of one-step synthesis of biMNCs, it is inevitable to mention the one-step synthesis method of monoMNCs as the same synthetic strategy in the mono-MNC ... bi-MNCs that copy the composition of their parental bi-MNPs Therefore, the composition control of bi-MNCs via the thiol-etching method was usually achieved during the preparation of bi-MNPs While the ... Chapter the ions of another metal (M#2) that possesses higher redox potential in solution Consequently, the metal ions of M#2 are reduced and deposited on the surface of the M#1 template The galvanic...
- 89
- 303
- 0
synthesis and optical properties of au-ag alloy nanoclusters with controlled composition, p26
Ngày tải lên :
04/06/2014, 15:20
... reduction velocity of the individual metal ions As the reduction potential of Ag (0.8 V) is smaller that the reduction potential of Au (1.5 V), the velocity of reduction of Au ions is faster than the ... in these systems The absorption and dispersion of light in nanoparticles depend on the nature of the metal, along with their chemical composition, morphology and sizes In the case of spherical ... correspond to the initial concentrations of gold and silver ions in the reaction mixtures On the other hand, the SPR peak positions of the colloids obtained from their theoretically calculated...
- 26
- 452
- 0
Báo cáo hóa học: " Laser-Induced, Polarization Dependent Shape Transformation of Au/Ag Nanoparticles in Glass" docx
Ngày tải lên :
22/06/2014, 00:20
... to place the position of the hole at the edge of one of these lines; this allowed us to image within one specimen regions without laser irradiation as well as regions where the maximum laser pulse ... preferentially in situations where together they form a coagulated particle with longer axis along the laser polarization From these considerations we conclude that the laserinduced shape changes of ... within the lines The polarization direction of the laser was parallel to the lines (writing direction) The effect of irradiating the sample in the described way with average single pulse energy of...
- 4
- 142
- 0
Tài liệu Câu hỏi trắc nghiệm phần kim loại Au, Ag luyện thi ppt
Ngày tải lên :
24/12/2013, 18:15
... i: Cu, Ag, Fe, Al, Zn d n nhi t c a chúng gi m d n theo th t : A Cu, Ag, Fe, Al, Zn C Al, Fe, Zn, Cu, Ag B Ag, Cu, Al, Zn, Fe D Al, Zn, Fe, Cu, Ag Câu 24: Có kim lo i: Cu, Ag, Fe, Al, Au d n i ... vàng tan dd nư c cư ng toan ch a: A H2SO4 HCl theo t l th tích 1:3 C HNO3 HCl theo t l th tích 1:3 B H2SO4 HCl theo t l th tích 3:1 D HNO3 HCl theo t l th tích 3:1 Copyright © 2009 volcmttl@yahoo.com.vn ... Ag, Fe, Al, Au d n i n c a chúng gi m d n theo th t : A Ag, Cu, Au, Al, Fe C Au, Ag, Cu, Fe, Al B Ag, Cu, Fe, Al, Au D Al, Fe, Cu, Ag, Au Câu 25: Trong hi n tư ng dư i ây, hi n tư ng c mô t không...
- 6
- 1.5K
- 14
Tài liệu Câu hỏi trắc nghiệm phần kim loại Au - Ag pptx
Ngày tải lên :
25/01/2014, 20:20
... i: Cu, Ag, Fe, Al, Zn d n nhi t c a chúng gi m d n theo th t : A Cu, Ag, Fe, Al, Zn C Al, Fe, Zn, Cu, Ag B Ag, Cu, Al, Zn, Fe D Al, Zn, Fe, Cu, Ag Câu 24: Có kim lo i: Cu, Ag, Fe, Al, Au d n i ... vàng tan dd nư c cư ng toan ch a: A H2SO4 HCl theo t l th tích 1:3 C HNO3 HCl theo t l th tích 1:3 B H2SO4 HCl theo t l th tích 3:1 D HNO3 HCl theo t l th tích 3:1 Copyright © 2009 volcmttl@yahoo.com.vn ... Ag, Fe, Al, Au d n i n c a chúng gi m d n theo th t : A Ag, Cu, Au, Al, Fe C Au, Ag, Cu, Fe, Al B Ag, Cu, Fe, Al, Au D Al, Fe, Cu, Ag, Au Câu 25: Trong hi n tư ng dư i ây, hi n tư ng c mô t không...
- 6
- 1.1K
- 2
Báo cáo khóa học: Human PABP binds AU-rich RNA via RNA-binding domains 3 and 4 pdf
Ngày tải lên :
23/03/2014, 12:20
... interfere with the interaction of PABP with eIF4G, thereby preventing circularization of the mRNA and reducing its rate of translation [23] However, it remains to be determined whether this is the mechanism ... resemble the major in vivo RNA substrate for PABP, which is poly(A) The affinity of the interaction of these proteins with the AU-rich RNA is comparable to the affinities that some other RNA-binding ... (Fig 5) In contrast to the effect of this mutation in the yeast protein, mutation of this residue in the human protein did not reduce the affinity for any of the RNAs tested Thus, yeast and human...
- 8
- 307
- 0
chuyên đề về Cr - Fe - Cu - Ni - Pb - Zn - Au - Ag - Sn
Ngày tải lên :
18/06/2015, 18:51
... biểu đúng: A Trong môi trường axit, ion Cr3+ có tính khử mạnh B Trong môi trường kiềm, ion Cr3+ có tính oxi hóa mạnh C Trong dung dịch ion Cr3+ có tính lưỡng tính D Trong dung dịch ion Cr3+ vừa ... CaO + CO2 B CaO + SiO2 CaSiO3 → → C CaO + CO2 CaCO3 D CaSiO3 CaO + SiO2 → → Câu 134: Quặng giàu sắt tự nhiên là: A Hematit B Xiđehit C Manhetit D Pirit Câu 135: Câu nói gang ? A Là ... 1,97.10-8 cm D 1,28.10-8 cm Câu 93: Trong phân tử MX2, m chiếm 46,67% số lượng Hạt nhân M có số nơtron nhiều số prton hạt Trong hạt nhân X số nơtron số proton Tổng số proton phân tử MX 58 Công thức phân...
- 33
- 432
- 0
Coupling effects of NaYF4Yb,Er upconversion nanoshells and au ag metallic nanoshells 1
Ngày tải lên :
10/09/2015, 09:08
... absorption increases as the particle size increases The theoretical frequency of LSPR is /√3 for a metallic nanosphere placed in vacuum, where / frequency of a bulk metal, is the plasmon is the number ... effects from metallic particles NaYF4:Yb,Er with hcp phase is one of the most efficient UC materials.26 Therefore, this material was selected to fabricate the UC nanoshells in this thesis The fluorescence ... than that of bulk counterparts For example, the emission intensity of UC nanoparticles with – 30 nm in size was only 0.2 – % of that of their bulk counterparts.33 Further, the compositional segregation...
- 23
- 229
- 0
Coupling effects of NaYF4Yb,Er upconversion nanoshells and au ag metallic nanoshells 2
Ngày tải lên :
10/09/2015, 09:08
... radiation at wavelengths characteristic of a particular element The intensity of this emission is indicative of the concentration of the element within the sample The composition of metal ions was ... (e.g hexane and toluene) would allow the deposition of hexane solution of UC nanoshells on the silica filmcoated Au-Ag nanoshells by solvent evaporation method, whereas the low thermal conductivity ... conditions of the magnetron sputtering system (Fig 2.1) In this study, silica film was selected due to its good chemical and thermal stability, and low thermal conductivity (1.4 Wm−1K−1).84 Its...
- 14
- 173
- 0
Coupling effects of NaYF4Yb,Er upconversion nanoshells and au ag metallic nanoshells 3
Ngày tải lên :
10/09/2015, 09:09
... inorganic materials, whereas the dark contrast at the periphery of the particles was caused by the NaYF4:Yb,Er shell These results confirmed the formation of UC nanoshells The NaYF4:Yb,Er shell showed ... 3.9) The XRD spectra showed the crystal structure of all the samples collected was hcp structure These results indicated the hcp NaYF4:Yb,Er was formed at the initial stage of reaction The microstructures ... undoped shell beyond which no further emission enhancement was observed when the thickness exceeded nm 32 In this thesis, the surface coatings of undoped NaYF4 (thickness of ~3 nm) on both the inner...
- 17
- 226
- 0
Coupling effects of NaYF4Yb,Er upconversion nanoshells and au ag metallic nanoshells 4
Ngày tải lên :
10/09/2015, 09:09
... interacted with the incident optical field, whereas the higher energy mode showed weak interactions The strength of the coupling between the sphere and cavity plasmons increased with decreasing the shell ... occurred in the region II Thus, the increase of the Au % in the region II was not as sharp as that in the region I It may be expected that the Au % in the sample in the region II would increase as sharply ... not oxidized This condition assumed that all Ag templates underwent alloying with Au to form Au-Ag alloys The theoretical condition (iii) (the combination) consisted of the complete galvanic replacement...
- 30
- 176
- 0
Coupling effects of NaYF4Yb,Er upconversion nanoshells and au ag metallic nanoshells 5
Ngày tải lên :
10/09/2015, 09:09
... intensity This explains the decrease of RFF when the Au-Ag surface coverage was higher than 22% (the region II) as shown in Fig 5.5 At these regions, the RFF decreased with increasing the Au-Ag ... nanoshells lying down on the substrate were viewed from side of the nanoshells It assumed the interior cavity of the nanoshells was filled with toluene, which was used as a solvent in synthesis of ... nanoshell layer was higher than ~22%, the UC fluorescence intensity decreased with further increasing the surface coverage % Further, the intensity ratio of two green emission peaks changed with...
- 18
- 186
- 0
Coupling effects of NaYF4Yb,Er upconversion nanoshells and au ag metallic nanoshells 6
Ngày tải lên :
10/09/2015, 09:09
... plasmonic 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 ... However, when the surface coverage of Au-Ag nanoshell layer further increased from 22% to 46%, the UC fluorescence intensity decreased due to the photothermal effects of Au-Ag nanoshells For the assembly ... The formation mechanism of the UC nanoshells involved vacancy diffusion, likely due to the Kirkendall effect and Ostwald ripening mechanism However, the diffusion of ions in the host during the...
- 3
- 168
- 0
Optical limiting properties of GO PVA and AU AG PMMA free standing films
Ngày tải lên :
30/09/2015, 10:11
... 14 With the extension of laser pulse duration, the optical limiting ability of this film clearly decreasing This phenomenon suggests that the fast optical limiting response of composite film is ... beam is further split into two portions, one as the probe and another as the reference to correct pulse-to-pulse intensity fluctuations The pump beam is focused onto the sample with a beam size of ... additional RSA component first, as a valley (decreased transmittance) in the middle with two humps (increased transmittance) in both sides With the further increasing excitation intensities, the...
- 48
- 238
- 0
Preparation of au ag alloy nanoparticles for surface enhanced raman scattering
Ngày tải lên :
24/10/2016, 15:21
... to the electromagnetic mechanism, Raman scattering intensity is enhanced due to the increase of the local electromagnetic field of the adsorbents by the excitation of the surface plasmon resonance ... laser ablation of corresponding metal plates (purity of 99.99%), which was placed in the glass vessel filled with 10 mL distilled water The laser ablation was performed by using the fundamental ... identical lattice constants, mixing of the two metals is a thermodynamically favorable process Therefore, alloying process may take place easily to form homogeneous Au-Ag alloy particles With the...
- 8
- 362
- 0
Tài liệu Human-induced changes in US biogenic volatile organic compound emissions: evidence from long-term forest inventory data ppt
Ngày tải lên :
14/02/2014, 08:20
... area within a plot) gave decreases over much of the region where the other models gave increases Crucially, however, the region of rapid increases in isoprene emissions in the southeast was common ... dependency of spatial distribution of leaves on the basal area of individuals, and the nonlinearity of the Guenther et al (1993) algorithms, introduce nonlinearities into the relationship between ... simple comparison of the errors on the absolute values at either time This is because the dominant sources of error tend to increase or decrease the estimated values together, and thus the error...
- 19
- 642
- 0
Báo cáo khoa học: Small heat shock protein Hsp27 prevents heat-induced aggregation of F-actin by forming soluble complexes with denatured actin docx
Ngày tải lên :
16/03/2014, 06:20
... 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 data ... F-actin concentration was constant and equal to 0.5 mgÆmL)1 Other conditions were the same as in Fig 1A The Rh values were determined from the Rh distributions obtained after F-actin thermal denaturation ... together, all these results support a viewpoint that the formation of soluble complexes with non-native proteins is a conserved feature of the sHSP family of chaperones, and the morphology of these...
- 12
- 319
- 0
Báo cáo khoa học: Cd2+-induced aggregation of Escherichia coli pyrophosphatase doc
Ngày tải lên :
23/03/2014, 13:20
... proteins in the E coli extracts were co-precipitated with PPase PPase aggregation was also quite specific with respect to the divalent metal ion used Of the other metal ions tested, only Cu2+ and ... power of Cd2+ concentration The position of this curve along the abscissa depended on reaction conditions and could be characterized by c½, the Cd2+ concentration corresponding to half the maximum ... concentrations of < mM Cd2+, whereas, at 1.5 mM Cd2+, the aggregation was nearly complete The theoretical curve, shown in Fig 2, was constructed assuming that the aggregation depends on the...
- 4
- 257
- 0
Báo cáo khoa học: Full-length adiponectin protects hepatocytes from palmitate-induced apoptosis via inhibition of c-Jun NH2 terminal kinase doc
Ngày tải lên :
29/03/2014, 23:20
... adiponectin was purchased from BioVision (Mountain View, CA, USA) Activity of the caspase-3 class of cysteine protease was determined with the colorimetric activity assay (R&D Systems) Caspase-3 activity ... so, whether this involved: (a) augmentation of the unfolded protein response (UPR); (b) up-regulation of members of the inhibitor of apoptosis protein (IAP) family; and ⁄ or (c) inhibition of JNK ... second effect, in addition to hepatic steatosis and abnormal apoptosis [3] Hepatic apoptosis is present in patients with high calorie-induced hepatic steatosis and correlates with the severity of...
- 7
- 199
- 0
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
Ngày tải lên :
30/03/2014, 10:20
... inhibit platelet aggregation induced by collagen but not by other agonists [25] They also exert potent inhibitory effects on both platelets in plasma and washed platelets Furthermore, unlike other ... aggregation mediated by GPVI To confirm this finding, we examined the effect of triplatin-1 on phosphorylation of the FcR c-chain [5,13,14] This was achieved by immunoprecipitation, because the binding ... platelet aggregation was started by addition of either 2.0 lgÆmL)1 collagen or 0.2 lgÆmL)1 CRP Platelet aggregation was monitored by light transmittance in the aggregometer with continuous stirring...
- 8
- 408
- 0