Surface functionalization of silicon substrates via graft polymerization
Surface functionalization of silicon substrates via graft polymerization
... Surface Functionalization of Silicon Substrates via SelfAssembled Monolayers 11 2.2 Surface Functionalization via Layer-By-Layer Approach 22 2.3 Surface Functionalization via Grafted Polymer Chains ... processes of RAFT-mediated graft polymerization of VBC on the Si-H surface and functionalization of the VBC graft- polymerized Si surface with viologen...
Ngày tải lên: 16/09/2015, 17:11
In vitro study of surface functionalization of titanium substrates for potential enhancement of osseointegration and reduction of bacterial infection
... IN VITRO STUDY OF SURFACE FUNCTIONALIZATION OF TITANIUM SUBSTRATES FOR POTENTIAL ENHANCEMENT OF OSSEOINTEGRATION AND REDUCTION OF BACTERIAL INFECTION HU XUEFENG (B.Eng., ... 2007).Therefore, new strategies of surface functionalization of titanium implants have been investigated with the aim of improving osseointegration 2.4.1 Enhancement...
Ngày tải lên: 10/09/2015, 09:13
Báo cáo hóa học: " An alternative route for the synthesis of silicon nanowires via porous anodic alumina masks" potx
... dimensions These nanoparticles necessarily have a size smaller than the pores of the AAO mask and will be responsible for the constant dimensions of the synthesized nanowires Figure shows the surface of ... structure of the membrane and before the treatment conditions allow the nanowires growth As can be seen there, the catalyst can be observed as small particl...
Ngày tải lên: 21/06/2014, 01:20
Báo cáo hóa học: " Formation of silicon nanodots via ion beam sputtering of ultrathin gold thin film coatings on Si" pot
... Position is plotted vertically along the sample where one region has a 20-nm Au film (top of Figure 1) and the bottom region only Si (c-d) SEM images corresponding to the postirradiation condition ... concentration of gold in the sample during irradiation as a function of fluence after LEISS and XPS quantification The plot of relative concentration (% Au) versus fluence displays t...
Ngày tải lên: 21/06/2014, 03:20
Surface functionalization of superparamagnetic iron oxide nanoparticles for potential cell targeting, imaging, and cancer therapy applications
... SURFACE FUNCTIONALIZATION OF SUPERPARAMAGNETIC IRON OXIDE NANOPARTICLES FOR POTENTIAL CELL TARGETING, IMAGING, AND CANCER THERAPY APPLICATIONS HUANG CHAO (B.ENG., ... Objectives and Scopes The overall aim of this thesis is to develop various functional polymers as surface coatings of SPIONs for potential cell targeting, MRI, and cancer...
Ngày tải lên: 09/09/2015, 10:14
Surface functionalization of titanium for biomedical applications
... SURFACE FUNCTIONALIZATION OF TITANIUM FOR BIOMEDICAL APPLICATIONS ZHANG FAN (B.Eng.(Hons.), NUS) A THESIS SUBMITTED FOR THE DEGREE OF DOCTOR OF PHILOSOPHY DEPARTMENT OF CHEMICAL AND ... initiator on titanium substrates This PhD project aims to modify titanium surfaces with a series of biologically active molecules to improve the performance of titanium substrat...
Ngày tải lên: 14/09/2015, 08:37
Surface and molecular modification of polyimides via graft copolymerization and functionalization
... SURFACE AND MOLECULAR MODIFICATION OF POLYIMIDES VIA GRAFT COPOLYMERIZATION AND FUNCTIONALIZATION WANG WENCAI (M.Eng., BUCT) A THESIS SUBMITTED FOR THE DEGREE OF DOCTOR OF PHILOSOPHY ... surface properties of polyimide (PI) and fluorinated polyimide (FPI), molecular redesign and functionalization via graft polymerization have been carried out Surface...
Ngày tải lên: 17/09/2015, 17:20
Growth of amorphous silicon nanowires via a solid–liquid–solid mechanism
... Cross-sectional SEM analysis of the sample provided direct evidence to support a- SiNW growth via an SLS mechanism Fig 3a shows a low-magnification cross-sectional SEM image It is visible that a layer of a- SiNWs ... a large area Ž10 = 10 mm of 111 Si substrate after a h period of growth EDS analysis Žinset proved that the nanowires consist mainly of silicon...
Ngày tải lên: 16/03/2014, 15:05
Silicon nanowires grown on si(1 0 0) substrates via thermal reactions with carbon nanoparticles
... Letters 371 ( 200 3) 394– 400 coverage, when the carbothermal reduction occurring at the CNPs/substrate interface is terminated after complete consumption of CNPs in contact with Si On the contrary, ... Letters 371 ( 200 3) 394– 400 Fig Pyramidal-shaped voids formed at the CNPs /Si(1 0) interface annealed at 105 0 °C (a) SEM image of pyramidal void and (b) magnified view of silicon n...
Ngày tải lên: 16/03/2014, 15:08
Controlled growth of oriented amorphous silicon nanowires via a solid–liquid–solid (SLS) mechanism
... ring pattern (inset) in select area electron di raction (SAED) revealed that SiNWs are completely amorphous Though the reason why the resultant nanowires are amorphous instead of being crystalline ... growth, which is in fact an analogy of the VLS mechanism The growth process of the a- SiNWs via an SLS model is depicted schematically in Fig Cross-sectional SEM analysis of...
Ngày tải lên: 16/03/2014, 15:14
Formation of silicon oxide nanowires directly from au si and pd–au si substrates
... atomic ratio of Si/ O in the SiOx nanowires on the Pd Au/ Si substrate is nearly consistent with the of SiO2 An efficient diffusion path for Si in the Pd Au alloy may result from the formation of many ... structure consisting of Pd surrounded by Au facilitates the formation of nanowires Fig shows FE-SEM images revealing the general morphologies of SiOx nanowires...
Ngày tải lên: 16/03/2014, 15:16
Báo cáo hóa học: " Influence of surface properties on the electrical conductivity of silicon nanomembranes" pot
... the condition of the surface produced by H termination The simplest situation for the H-terminated surface would be complete passivation of surface states by H (including the “poisoning” of the ... electronic properties of nanometer-scale silicon membranes in silicon -on- insulator PhD thesis University of WisconsinMadison, Physics; 2006 Boland JJ: Structure...
Ngày tải lên: 21/06/2014, 03:20
Báo cáo hóa học: " Edge-Functionalization of Pyrene as a Miniature Graphene via Friedel–Crafts Acylation Reaction in Poly(Phosphoric Acid)" pdf
... anticipated Hence, graphite was also treated with TMPBA in the same reaction and work-up conditions For the purpose of having a basic understanding of the starting material, pristine graphite was ... elemental analysis of samples Sample EF FW Table Elemental analysis of graphite and graphite-g-TMPBA Sample Elemental analysis Elemental analysis C (%) H (%) C (%) O (%) As- receiv...
Ngày tải lên: 21/06/2014, 17:20
Báo cáo hóa học: " Synthesis and Photoluminescence Property of Silicon Carbide Nanowires Via Carbothermic Reduction of Silica" doc
... FE-SEM and TEM image of the wires (Fig 4c and the inset of Fig 5a) The chemical composition of these SiC NWs were checked by EDS, and the result is shown in Fig 4d.The nanowires are composed of silicon ... carbothermic reduction of silica under normal atmosphere pressure without catalyst The structure and photoluminescence property of SiC NWs were investigated...
Ngày tải lên: 22/06/2014, 00:20
Integration of indium gallium nitride with nanostructures on silicon substrates for potential photovoltaic applications
... INTEGRATION OF INDIUM GALLIUM NITRIDE WITH NANOSTRUCTURES ON SILICON SUBSTRATES FOR POTENTIAL PHOTOVOLTAIC APPLICATIONS HO JIAN WEI (B.Eng.(1st Hons), NUS) A THESIS SUBMITTED FOR THE DEGREE OF ... Current Status of Photovoltaics (PV) for Solar Energy Harvesting 1.2 Motivation for Integration of InGaN with Nanostructures on Si in PV 1.2.1 Advanta...
Ngày tải lên: 09/09/2015, 08:17