نتایج جستجو برای: nanomanufacturing
تعداد نتایج: 185 فیلتر نتایج به سال:
This study aims to establish an aqueous extract of Chlorella vulgaris as a green factory manufacture titanium nanoparticles and apply these control the house flies (Musca domestica). Since crystallite size prepared was 27.39 nm. Furthermore, observed for bulk particles ranged (from 92.33-249.6) nm through SEM. While nanocrystalline 9.395- 206) Several phytochemicals were detected within algal e...
Recent work demonstrates that processes of stress release in prestrained elastomeric substrates can guide the assembly of sophisticated 3D micro/nanostructures in advanced materials. Reported application examples include soft electronic components, tunable electromagnetic and optical devices, vibrational metrology platforms, and other unusual technologies, each enabled by uniquely engineered 3D...
Plasma lithography is a template-guided self-assembly nanomanufacturing strategy for creating functional engineering devices using nanoscale and molecular building blocks. To elucidate the plasma lithography manufacturing process, the comparative binding of colloidal quantum dots on plasma patterned surface templates is investigated. In particular, fluorescence microscopy and scanning electron ...
In nanotechnology applications, nanopositioning, i.e., nanometer-scale precision control at dimensions of less than 100 nm, plays a central role. One can view nanopositioners as precision mechatronics systems aiming at moving objects over a certain distance with a resolution that could be as low as a fraction of an Ångström. Actuation, position sensing and feedback control are the key component...
Self-assembly of block-copolymers provides a route to the fabrication of small (size, <50 nm) and dense (pitch, <100 nm) features with an accuracy that approaches even the demanding specifications for nanomanufacturing set by the semiconductor industry. A key requirement for practical applications, however, is a rapid, high-resolution method for patterning block-copolymers with different molecu...
We report the synthesis of multifunctional block copolymers (BCPs) showing a high Flory–Huggins interaction parameter (χ), which enable sub-10 nm line-space structures for low degree polymerization (N). The χ BCPs are based on poly(3,4-dihydroxystyrene)–block-poly(4-trimethylsilylstyrene) (PDHS-b-PTMSS) architecture. controlled PDHS-b-PTMSS precursors was performed using user-friendly sequentia...
Substrate topography plays a vital role in cell and tissue structure and function in situ, where nanometric features, for example, the detail on single collagen fibrils, influence cell behaviour and resultant tissue formation. In vitro investigations demonstrate that nanotopography can be used to control cell reactions to a material surface, indicating its potential application in tissue engine...
We investigate the effect of the ordering temperature (T) and film thickness (h(f)) on the surface morphology of flow-coated block copolymer (BCP) films of asymmetric poly(styrene-block-methyl methacrylate). Morphology transitions observed on the ordered film surface by atomic force microscopy (AFM) are associated with a perpendicular to a parallel cylinder BCP microphase orientation transition...
Controlling Structural Anisotropy of Anisotropic 2D Layers in Pseudo-1D/2D Material Heterojunctions.
Chemical vapor deposition and growth dynamics of highly anisotropic 2D lateral heterojunctions between pseudo-1D ReS2 and isotropic WS2 monolayers are reported for the first time. Constituent ReS2 and WS2 layers have vastly different atomic structure, crystallizing in anisotropic 1T' and isotropic 2H phases, respectively. Through high-resolution scanning transmission electron microscopy, electr...
Controlled assembly of single-walled carbon nanotube (SWCNT) networks with high density and deposition rate is critical for many practical applications, including large-area electronics. In this regard, surfactant chemistry plays a critical role as it facilitates the substrate-nanotube interactions. Despite its importance, detailed understanding of the subject up until now has been lacking, esp...
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