Why Chemistry ?

1. Ever wondered why the sky is blue? Why onions make you weep? How does our body function? Why the pesticide in cola is harmful? If so welcome to chemistry! Chemistry provides a tool box with which to find answers to important challenges to ever changing world. Chemistry is the science of change Why Chemistry?

2. Colors of Chemistry! • Chemists are in the forefront of exciting research like nanotechnology, medicine and environmental technologies. Because of this key role the employment prospects of chemists is large and growing. • 25th anniversary of ghastly Bhopal gas tragedy. Still fresh in the minds of the victims. The Copenhagen summit of climate changes, of carbon footprint, of carbon 390 is hanging on the mankind like the proverbial domocle’s sword. Yes this is all about “ the Dirty Chemistry “ because of the hazardous effects of Chemical wastes and obnoxious odor.

3. All right can we live without chemicals? Soap. Paper. Starch vegetable oil, ghee, and tannery. Rubber.petroleum computer chips etc there are only chemicals. Drugs that help you live longer ,that cure of ailments are all chemicals. A new concept called Green Chemistry is catching up the fancy of Scientific world in all branches of chemistry organic, inorganic, analytical/physical and biochemistry. The highly toxic solvents are neutralized by nontoxic Ionic solvents, Super critical CO2 & water. Green Chemistry gained momentum with the launch of ’12 principles of green chemistry’ by Prof Paul Anastas & prof John C warner.

4. Green chemistry’s current trends and future aspirations. • what do pulp and paper, lumber, petrochemicals, textiles, transportation, health care and pharmaceuticals, architecture, mining and steel, food and agriculture, plastic/ rubber/coatings, and electronics have in common. Together they define modern civilization, constitute the world economy, and all involve chemistry. They all generate certain waste that results in environmental and social concerns. Historically, industries have been established by scientific expeditions that have resulted in new industrial territories .

5. ." In contrast to the traditional wisdom, green chemistry adopts a totally new philosophical approach to address the delicate balance of economic development and environmental protection by creating a new science that eventually will enable industry to produce the same products in the most direct, economical, and socially/environmentally responsible manner possible. It also designs the chemistry so it is less hazardous. It ensures minimized hazard is a performance criterion in the feedstock, reagents, solvents, transformations, and products that we make.

6. COMPUTATIONAL CHEMISTRY: REVIEWS OF CURRENT TRENDS. • The gap between experimental objects and models for calculations in chemistry is being bridged. The size of experimental nano-objects is decreasing, while reliable calculations are feasible for larger and larger molecular systems. The results of these calculations for isolated molecules are becoming more relevant for experiments. However, there are still significant challenges for computational methods .

7. Drug Delivery System Using Nanoparticles And Lasers • Researchers at UC Santa Barbara have developed a new way to deliver drugs into cancer cells by exposing them briefly to a non-harmful laser. "This entirely novel tool will allow biologists to investigate how genes function by providing them with temporal and spatial control over when a gene is turned on or off," explained Norbert Reich, senior author and a professor in the Department of Chemistry and Biochemistry at UCSB. "In a nutshell, what we describe is the ability to control genes in cells –– and we are working on doing this in animals –– simply by briefly exposing them to a non-harmful laser."

8. used cancer cells from mice, and grew them in culture. They then introduced gold nanoshells, with a peptide-lipid coating, that encapsulated "silencing ribonucleic acid" (siRNA), which was the drug that was taken up by the cells. Next, they exposed the cells to a non-harmful infrared laser. The scientists used cancer cells from mice, and grew them in culture. They then introduced gold nanoshells, with a peptide-lipid coating, that encapsulated "silencing ribonucleic acid" (siRNA), which was the drug that was taken up by the cells. Next, they exposed the cells to a non-harmful infrared laser.

9. "Laser-controlled release is a convenient and powerful tool, allowing precise dosing of particular cells within a group. The use of biologically friendly tissue penetration with near-infrared light is the ideal for extending this capability into larger biological systems such as tissues and animals.“

10. Michael Faraday is considered to be the greatest British inventor. It is worth mentioning that the discoveries of the famous English chemist and physicist led to great developments in the fields of electromagnetism and electrochemistry. He can be called the father electric motor technology

11. The top 20 list continued with the inventor of television John Logie Baird (8 percent) and the person who invented the first working telephone Alexander Graham Bell (7 percent). Two percent of votes received Sir Clive Sinclair, the inventor of the pocket calculator, reports The Telegraph. Among other names in the list there were Frank Whittle, who together with Germany's Dr. Hans von Ohain invented the jet engine, and Percy Shaw, English inventor and businessman who development the Catseye..

12. Biochemistry is the study of the chemical processes in living organisms. It deals with the structure and function of cellular components such as proteins, carbohydrates, lipids, nucleic acids and other biomolecules.Among the vast number of different biomolecules, many are complex and large molecules (called polymers), which are composed of similar repeating subunits (called monomers)

13. The biochemistry of cellmetabolism and the endocrine system has been extensively described. Other areas of biochemistry include the genetic code (DNA, RNA), protein synthesis, cell membranetransport, and signal transduction.Since all known life forms that are still alive today are descended from one of two[common ancestors,

14. Today, there are three main types of biochemistry. Plant biochemistry involves the study of the biochemistry of autotrophic organisms such as photosynthesis and other plant specific biochemical processes. General biochemistry encompasses both plant and animal biochemistry. Human/medical/medicinal biochemistry focuses on the biochemistry of humans and medical illnesses.

15. Scientists develop a general control switch for protein activity • First major study of mammalian 'disorderly' proteins • Revolutionary New Tool to Watch Real-Time Chemical Activity in Cells • Exploring mechanics of chromatid cohesion. • New methods of structural genomics have accelerated studies of individual proteins