... ENGINEERING AND SURFACEMODIFICATIONOF BACULOVIRUS DERIVED VECTORS FOR IMPROVED GENE DELIVERY TO THE CENTRAL NERVOUS SYSTEM YANG YI (B Eng.) A THESIS SUBMITTED FOR THE DEGREE OF DOCTOR OF PHILOSOPHY ... Characterization of Baculovirus Particles…………141 5.1.2 Genetic Engineering of Baculovirus Vectors for Controlled Gene Expression……………………………………………………… 142 5.1.3 Surface Modifications of Baculovirus Vectors for ... to become protonated The branched form of PEI has yielded significantly greater success in terms of cell transfection, and is therefore the standard form of PEI for gene delivery Highly branched...
... energy of singlewalled carbonnanotubes Appl Phys Lett 1999, 16:2307-2309 Peigney A, Laurent C, Flahaut E, Bacsa RR, Rousset A: Specific surface area ofcarbonnanotubes and bundles ofcarbonnanotubes ... functionalization of single-wall carbonnanotubes through C-N bond forming substitutions of fluoronanotubes-Patent 2006, US2006171874 Ford WE, Wessels J, Yasuda A: Method and apparatus for producing carbon nanotubes- Patent ... properties ofCNTsCarbonnanotubes are a huge cylindrical large molecules consisting of a hexagonal arrangement of sp2 hybridized carbon atoms (C-C distance is about 1.4 Ǻ) The wall ofCNTs is...
... Fig Dependence ofcarbon yield on the reaction temperature be through the precipitation ofcarbon in the form of MWNTs from the molten catalytic particles The melting temperatures of the alloy-C ... could act as nucleation sites for the growth ofcarbonnanotubes There could be a further reduction in the catalyst particle size during the hydrogen treatment before the carbon deposition Further, ... of D-band for Nifilled MWNTs is due to the non-uniform filling of Ni, resulting in increased degree of disorderness Alloy nanowire filled MWNTs could be used in the development and fabrication of...
... loss of magnetism and dispersibility Therefore, the surfacemodificationof nanoparticles is indispensable and the particle surface can be modified by grafting inorganic or organic coating Surface ... of MNPs endows the particles with important properties Modificationof the surfaceof MNPs prevents agglomeration of the particles and thus stabilizes the colloidal system Functionalization of ... the modificationof the surfaces of such magnetic particles with polymeric substance to receive organic-inorganic nanocomposites These nanocomposites has made accessible in immense area of new...
... measured for a bulk sample.24 The mechanism of size-dependent UC properties may be attributed to the surface ligands quenching, surface defects and surface segregation.25 Therefore, surfacemodification ... of 4f-4f transition ofsurface Ln3+ ions Undesirable distribution of the dopant ions can also be resulted due to a higher ratio of surface- to-interior atoms, like surface segregation.31 All of ... UC/shell/Au-silica nanocomposites with the interval time of 14 h Diffraction patterns (inset of a) of UC/shell/Au-silica nanocomposites 83 Figure 5.2 XPS spectrum of Au 4d level for UC/shell/Au-silica...
... electrospinning 14 2.3.3 Modifications of the electrospun nanofibers 19 2.3.4 Potential application of Mesenchymal stem cells for osseointegration 20 Chapter 3: Biomimetic surfacemodificationof dental implant ... thank my parents for their profound love and support TABLE OF CONTENTS ACKNOWLEDGEMENTS TABLE OF CONTENTS LIST OF FIGURES LIST OF TABLES LIST OF APPENDICES LIST OF ABBREVIATIONS Chapter 1: Introduction ... roughness of the implant surface owing to the various surfacemodification techniques were shown in Table 2.1 Table 2.1 Different types of implant surface modifications and their surface roughness and...
... regions of the CD molecules 24 Figure 2-6 The formation of CD inclusion complex 25 Figure 2-7 Molecular structures of RhB, (a) Monomeric form/Cationic form and (b) Dimer form/Zwitterionic form 29 ... temperature [39] 2.2.4 Surfacemodificationof magnetic particles In the absence of any surface modification, magnetic nano-sized particles exhibit hydrophobic surfaces with a large surface area to ... Figure 2-1 Schematic diagram for separation of non-magnetic materials 2.1.2 Driving force for dye adsorption on solid surface The uptake of dye onto the adsorbent surface depends on several factors...
... presents the results of nanofibrous surfacemodificationof PCL membrane in terms ofsurface characterization and cell behavior studies The results showed that uniform nanofibrous topology were ... knowledge of biomaterials, the author would like to present recent data published for the surfacemodificationof PCL, only to clarify the traditional ways to modify the inert surfaceof PCL It ... first summarized success of nanofibrous surfacemodification on ultra-thin PCL membrane With the consequent serial of changes due to the modification, a better ECM-mimic surface was achieved, so...
... dependence of@ e structure of EELS on the diameter and the anisotropic features ofCNTs Introduction - Morphological Features ofCNTs Since the discovery ofcarbonnanotubes (CNTs) [I], most of the ... monograph is entitled "The Science and Technology ofCarbon Nanotubes" as the successive version of ref for the benefit of actual and potential researchers of these materials by collecting and arranging ... all of the authors should like to offer the readers the newest developments of the science and technological aspects ofCNTs vi It is our biggest sorrow that in the course of preparation of this...
... mixture of graphitic carbon and SiC nanowires was formed because of both the carbonization of the nanowires and the fast carbon deposition to form the carbon- like structure Conclusions In summary, CNTs ... characteristics ofcarbon deposition on the crystalline Si NW can be envisaged to be controlled by both a template eect for the formation of tube-like carbon shell structure and a carbonization eect for ... $900°C, carbon multilayers were formed on the surfaceof carbonized Si NWs At a higher reaction temperature ($1000°C), the silicon cores reacted with carbon and transformed into b-SiC cores Carbon...
... chemical properties of CNTs, highly efficient purification of the as-prepared CNTs is, therefore, very important 1.3 Assessment of CNT purity To evaluate the purity of CNTs, the efficiency of a purification ... Precise content ofcarbon and metals Diameter, quality and conductivity of SWCNTs Conductivity feature and content of SWCNTs Accurate assessment of F-G on CNTs Elemental contents, special for trace ... relatively low and of short range Therefore, the polymer chain length and surface coverage for the dispersion of CNPs was lower than that needed for the dispersion of MWCNTs On the basis of this theoretical...
... nano 2.4 Tổng hợp chức hóa Carbonnanotubes (CNTs) Với trang thiết bị có phòng thí nghiệm lọc hóa dầu – Đại học Bách khoa Đà Nẵng , tổng hợp thành công Carbonnanotubes (CNTs) theo phương pháp kết ... hóa CNTs mô tả hình Quá trình chức hóa CNTs thực vòng 24 CNTs sau chức hóa, ký hiệu CNTs- unct, thu hồi lọc hút chân không rửa nhiều lần nước cất đạt pH trung tính Kết thúc trình này, thu CNTs ... Vật liệu tổ hợp g-nano /CNTs- funct/cotton Kết chụp TEM vật liệu CNTs tổng hợp được trình bày hình cho thấy kích thước ống carbon (CNTs) nằm khoảng 10 – 30nm Hình 5: Ảnh TEM CNTs Trong trình thí...
... Properties ofCarbonNanotubes 319 Fig 17 Molecular mechanics calculations on the axial and radial deformation of single-wall carbonnanotubes (a) Axial deformation resulting from the crossing of two ... TPa nm/d for SWNT’s of diameter d 3.2 Evidence of Nonlinear Mechanics and Resilience ofNanotubes Large amplitude deformations, beyond the Hookean behavior, reveal nonlinear properties of nanotubes, ... is responsible for the apparent softening of MWNT of larger diameters A variety of largely and reversibly distorted (estimated up to 15% of local strain) configurations of the nanotubes has been...
... spectra ofCNTs grown under negative and zero dc bias voltage represent sp3 rich phases ofCNTs and suggest the existence of amorphous carbon or defects on the walls of CNTs. 31 The absence of a ... resistances of the CNTs tend to show a somewhat inverse correlation with the quality of the CNTs The absence of a distinct D′ mode at 1625 cm-1 and a peak at 1180 cm-1 for the Raman spectra ofCNTs ... to be the relative amount of amorphous carbon and the density of defects on the walls of the CNTs However, as subsequently shown, the high electrical resistance ofCNTs grown under negative dc...
... (MOSFETs) The key role of Schottky barriers and the critical effects of the environment on the performance of SWNT-FETs are stressed Then the nature of the excited states ofnanotubes and their optoelectronic ... single-walled variant ofcarbonnanotubes Since then, we have observed the progress of science and technology as it relates to carbonnanotubes changing from the discovery of various methods to ... concepts to the studies of the unique physical and mechanical properties ofcarbonnanotubes Some of the chapters in these books deal with what might be unique about carbonnanotubes and where one...
... single wall carbonnanotubesCarbon 2002, 40:2043-2061 24 Deng F, Zheng QS, Wang LF: Effects of anisotropy, aspect ratio, and nonstraightness ofcarbonnanotubes on thermal conductivity ofcarbon ... properties of the system Thus, we aimed at studying the effect of two types of carbon- based nanofillers, in particular, nanotubes and graphene sheets, on the thermal conductivity of an uncured ... interest and effort in the transport properties ofcarbon nanotube [CNT] filled polymer nanocomposites [2, 3] Electrical conductivity of epoxy nanocomposites increases by several orders of magnitude...
... (l = 365 nm) for h, the replica mold was peeled off, providing a surface nanopillar-patterned NOA63 polymer layer formed on a PET film (Figure Page of 1b) For the generation ofsurface hydroxyl ... 2b) FE-SEM images of the surfaceof the sample treated for 15 showed that the pillar agglomeration and surface deformation continually progressed (Figure 3c), and after 30 of treatment (Figure ... FE-SEM images of the surfaceof samples treated with photooxidation for different periods of time Short exposure to UV radiation, e.g., (Figure 2a), did not significantly alter the surface, except...
... at the surface, enabling the construction ofCNTs However, the formation of the initial caps at the nucleation stage has yet to be clarified [19] Some argue a transformation process ofsurface ... [20,21] or amorphous carbon [22] forms nucleation caps Others argue the formation of convex structures on the surface enable initial cap formation [23-25] Single-walled carbonnanotubes (SWNTs) ... Self-assembly formation of multi-walled carbonnanotubes on gold surfaces Nanoscale 2010, 2:2835 53 Lin JH, Chen CS, Rümmeli MH, Bachmatiuk A, Zeng ZY, Ma HL, Büchner B, Chen HW: Growth ofCarbon Nanotubes...
... branched carbon nanotubes, a PECVD process A nm layer of nickel catalysts were deposited on a silicon wafer After the synthesis of VA -CNTs, a conformal layer of TiO2 was coated on the exterior of the ... low-temperature plasmaassisted growth ofCNTs [27, 51], which was similar to the activation energy ofsurface diffusion ofcarbon atoms on polycrystalline Ni (0.3 eV) [52] Hoffman et al [51] suggested ... high energy of *100 eV and caused C–C bond breakage The presence of plasma radicals such as NHx and H further chemically etched the surfaceof the carbonnanotubes The growth mechanism of SWNT in...
... (l = 365 nm) for h, the replica mold was peeled off, providing a surface nanopillar-patterned NOA63 polymer layer formed on a PET film (Figure Page of 1b) For the generation ofsurface hydroxyl ... 2b) FE-SEM images of the surfaceof the sample treated for 15 showed that the pillar agglomeration and surface deformation continually progressed (Figure 3c), and after 30 of treatment (Figure ... FE-SEM images of the surfaceof samples treated with photooxidation for different periods of time Short exposure to UV radiation, e.g., (Figure 2a), did not significantly alter the surface, except...