nanotechnology the concept of nanotechnology is defined as an art handling of tiny particles...
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Nanotechnology
The concept of nanotechnology is defined as an art handling of tiny particles (1nm=0.000000001 m).
The structures have different properties against the same chemical characteristics taken at the microscopic level
Important characteristics of Nanoparticles
target specificity extreme
encapsulations efficiency
carry high concetrated drug
zeta potential(surface charge)
efficient drug release
Applications of nanotehnology
Medicine: Drug development Cancer treatment Bone treatment Drug delivery Appetite control Drug development Medical tools Diagnostic tests Probing of DNA structure Separation and purification of
biological molecules and cells Detection of proteins
Information technology:- Smaller, faster, more energy efficient and powerful computing and other IT-based systems
Consumer goods: Foods and beverages:-Advanced
packaging materials, sensors, and lab-on-chips for food quality testing.
Appliances and textiles:-Stain proof, water proof and wrinkle free textiles
Household and cosmetics:-Self-cleaning and scratch free products, paints, and better cosmetics
Nanomedicine
Nanomedicine can be defined as the monitoring, repairing, construction and control of human biological systems at the cellular level by using material and structures engineered at the atomic or molecular level
Thermal ablation of cancer cells
Nanoshells have metallic outer layer and silica core
Selectively attracted to cancer shells either through a phenomena called enhanced permeation retention or due to some molecules coated on the shells
The nanoshells are heated with an external energy source killing the cancer
cells
Targeted drug delivery
Nanoparticles containing drugs are coated with targeting agents (e.g. conjugated antibodies)
The nanoparticles circulate through the blood vessels and reach the target cells
Drugs are released directly into the targeted cells