Nanotech Poised To Fire Up Medicine's Next Revolution! From Polio to Cancer — Diagnosis and Delivery Tools Are Key - NANO world news
Nano Science and Technology Institute
Tuesday, August 16, 2005
Monday, August 08, 2005
Nanofiber Research - my experiences
Electrospinning of Nanofibers
In this post I thought of sharing my experiences in the research on polymeric nanofibers. My research was basically centered around creating polymeric nanofibers as protective substrates. In a broader sense it is creating, analyzing and characterizing polymeric nanofibers by a method called electrospinning.
Electrospinning proces
s uses high voltage electric field to produce electrically charged jets from polymer solution or melts, which on drying by means of evaporation of the solvent produces nanofibers.Production of synthetic filaments using electrostatic forces has been known for more than one hundred years. The process of spinning fibers with the help of electrostatic forces is known as electrospinning. It has been shown recently that electrospinning process is capable of producing fibers in the submicron range. Electrospinning has gained much attention in the last decade not only due to its versatility in spinning a wide variety of polymeric fibers but also due to its consistency in producing fibers in submicron range. These fibers with smaller pores and higher surface area than regular fibers have enormous applications in nanocatalysis, tissue scaffolds, protective clothing, filtration and optical electronics.
In this post I thought of sharing my experiences in the research on polymeric nanofibers. My research was basically centered around creating polymeric nanofibers as protective substrates. In a broader sense it is creating, analyzing and characterizing polymeric nanofibers by a method called electrospinning.
Electrospinning proces
s uses high voltage electric field to produce electrically charged jets from polymer solution or melts, which on drying by means of evaporation of the solvent produces nanofibers.Production of synthetic filaments using electrostatic forces has been known for more than one hundred years. The process of spinning fibers with the help of electrostatic forces is known as electrospinning. It has been shown recently that electrospinning process is capable of producing fibers in the submicron range. Electrospinning has gained much attention in the last decade not only due to its versatility in spinning a wide variety of polymeric fibers but also due to its consistency in producing fibers in submicron range. These fibers with smaller pores and higher surface area than regular fibers have enormous applications in nanocatalysis, tissue scaffolds, protective clothing, filtration and optical electronics.
Electrospinning setup in the Nanofiber research lab at Texas Tech University, Lubbock, TX.
Scanning electron microscope image of polyurethane nanofiber magnified 5900 times.
Application of polymeric nanofibers
Carbon and Graphitic Nanofibers
Tissue Scaffolds and Drug Delivery
Catalytic Nanofibers
Filtration
Reference: Electrospinning of Nanofibers, J Appl Polym Sci 96:557–569, 2005
Renowned electrospinning research groups
Professor Darrell H. Reneker Group
Professor Gregory C. Rutledge group
NUS Nanoscience and Nanotechnology Initiative
Saturday, August 06, 2005
It is a small world
Nanotechnology is the emerging technological field in which structure of matter are produced, characterized and controlled at nano level. Some of the contributing fields to nanotechnology include material science, chemistry, molecular physics, biology, chemical engineering, mechanical engineering and electrical engineering. The evolution of nanotechnology is centered over the basic objective of building precise quality materials with enhanced properties.
How small is small?
The definition most frequently used by government and industry involves structures, devices, and systems having novel properties and functions due to the arrangement of their atoms on the 1 to 100 nanometer scale
Application potential of nanotechnology is foreseen in the following areas.
1.Global energy needs with clean solutions
2.Clean water
3.Healthcare
4.Information technology (powerful and innovative electronic solutions)
5.Defense
6.Material Science
Recent innovations and potential research areas in nanotechnology
1. Molecular nanotechnology - This is essentially developing a technology that could have ability to place every atom in the right place.
Molecular manufacturing will revolutionize physical technology
Current research in nanotechnology is laying the foundation for a breakthrough development: manufacturing systems based on extremely productive nanoscale devices. These molecular manufacturing systems can be used to build large, complex products cleanly, efficiently, and at low cost. Building with atomic precision, desktop-scale (and larger) molecular manufacturing systems can be used to produce:
· desktop computers with a billion processors
· inexpensive, efficient solar energy systems
· medical devices able to destroy pathogens and repair tissues
· materials 100 times stronger than steel
· superior military systems
· more molecular manufacturing systems
Scientific research related to nanotechnology, however, is not enough — successful development of molecular manufacturing systems will require a focused effort guided by systems engineering.
Excerpt from http://e-drexler.com/
2. Creation of functional materials, composites and self healing materials
Carbon nanotubes
Graphite nanofibers
Polymeric nanofibers
Nanoparticles and composites
Center of Nanotechnology, NASA
Carbon nanotube research at IBM
Polymeric nanofiber webs from Donaldson
3.Nanotechnology in Medicine
nanofiberous tissue scaffolds
nanodrug delivery system
nanoprobes
nano medical devices
Introduction to nanotechnology and its applications to medicine
and of course many more in the making, thanks to the National Nanotechnology Initiative
Its indeed a real small world.
How small is small?
The definition most frequently used by government and industry involves structures, devices, and systems having novel properties and functions due to the arrangement of their atoms on the 1 to 100 nanometer scale
Application potential of nanotechnology is foreseen in the following areas.
1.Global energy needs with clean solutions
2.Clean water
3.Healthcare
4.Information technology (powerful and innovative electronic solutions)
5.Defense
6.Material Science
Recent innovations and potential research areas in nanotechnology
1. Molecular nanotechnology - This is essentially developing a technology that could have ability to place every atom in the right place.
Molecular manufacturing will revolutionize physical technology
Current research in nanotechnology is laying the foundation for a breakthrough development: manufacturing systems based on extremely productive nanoscale devices. These molecular manufacturing systems can be used to build large, complex products cleanly, efficiently, and at low cost. Building with atomic precision, desktop-scale (and larger) molecular manufacturing systems can be used to produce:
· desktop computers with a billion processors
· inexpensive, efficient solar energy systems
· medical devices able to destroy pathogens and repair tissues
· materials 100 times stronger than steel
· superior military systems
· more molecular manufacturing systems
Scientific research related to nanotechnology, however, is not enough — successful development of molecular manufacturing systems will require a focused effort guided by systems engineering.
Excerpt from http://e-drexler.com/
2. Creation of functional materials, composites and self healing materials
Carbon nanotubes
Graphite nanofibers
Polymeric nanofibers
Nanoparticles and composites
Center of Nanotechnology, NASA
Carbon nanotube research at IBM
Polymeric nanofiber webs from Donaldson
3.Nanotechnology in Medicine
nanofiberous tissue scaffolds
nanodrug delivery system
nanoprobes
nano medical devices
Introduction to nanotechnology and its applications to medicine
and of course many more in the making, thanks to the National Nanotechnology Initiative
Its indeed a real small world.
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