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

Personal opinion

I believe that any invention brings benefit doubly so as nanotechnology helps to healing of diseases

Although there are numerous risks, we must be open to what is new and to understand what researchers want to say about this technology.