Nanoparticles: synthesis and applications

Institution UNIVERSITY
Course BACHELOR OF SCIENCE...
Year 4th Year
Semester Unknown
Posted By stephen oyake rabilo
File Type pdf
Pages 30 Pages
File Size 1.73 MB
Views 1970
Downloads 0
Price: Buy Now whatsapp Buy via whatsapp
  • whatsapp
  • facebook
  • twitter

Description

Nanoparticles are defined by the worldwide federation of national standards bodies, the International Organization for Standardization (ISO), as nanoobjects with all external dimensions in the nanoscale, where the lengths of the longest andshortest axes of nanoobjects do not differ significantly . Though nanoscale is basically ranged from 1 to 100 nm, nanoparticles can be categorized by three size ranges: larger than 500 nm, between 100 and 500 nm, and between 1 and 100 nm (European Commission, 2010). With respect to the size and the size distribution, nanoparticles may exhibit size-related intensive properties. If they are small enough to confine their electrons, they produce quantum effects and exhibit unexpected properties, for example, gold nanoparticles appear red in solution (see, for instance, Eustis and El-Sayed, 2006), and melt at much lower temperatures than that in slab form (Buffat and Borel, 1976). The high surface-area-to-volume ratio of nanoparticles provides the significant changes in properties related to contact/surface area, such as catalytic (Astruc, 2008),surface-enhanced plasmon resonance (Melaine et al., 2015), etc.
Below is the document preview.

No preview available
History form 2 exams paper 1 and 2 (with marking schemes) Trending!
This entails form 2 exams for term two.Besides,it has both paper 1 and 2.Therefore it is very useful for your students
7040 Views 10 Downloads 40.47 KB
Business Cards Template Trending!
Best free business card template
6714 Views 0 Downloads 3.69 MB
Elegant business card template Trending!
Photoshop psd elegant business card template free
7582 Views 0 Downloads 2.62 MB
Awesome insiring web design template Trending!
Free awesome responsive bootstrap web design template
4079 Views 0 Downloads 2.8 MB
BIOCHEMISTRY
Polyurethanes are prepared from diisocyanates and diols. Urethane (also called a carbamate) is a functional group that contains both an ester and an amide at a single carbonyl group. Nucleophilic Addition Reaction: Example 1: Sevin is a highly effective, biodegradable insecticide. It affects the nervous systems of insects by blocking access to the neurotransmitter acetylcholine.
57 Pages 790 Views 0 Downloads 1.68 MB
BIOCHEMISTRY
PETROLEUM CHEMISTRY Carbon is so Important in the Life Cycle. It has numerous ways of bonding with many other elements, particularly oxygen and hydrogen. It can form both “organic” and “inorganic” compounds. Organic compounds are considered unstable in the biosphere because they are in the reduced state. Whereas Inorganic compounds, principally calcite (CaCO3 ) and dolomite (CaMg(CO3 )2 ), are stable because they are in the oxidized state. Carbon is present in most substances that are vital for the development of life (called “biomolecules”): Proteins, lipids, sacharides, etc
76 Pages 718 Views 0 Downloads 1.86 MB
BIOCHEMISTRY
Alkyl halides are organic molecules containing a halogen atom bonded to an sp3 hybridized carbon atom. • Alkyl halides are classified as primary (1°), secondary (2°), or tertiary (3°), depending on the number of carbons bonded to the carbon with the halogen atom. • The halogen atom in halides is often denoted by the symbol “X”.
53 Pages 744 Views 0 Downloads 2.07 MB
BIOCHEMISTRY
Natural Gas Natural gas is a gaseous fossil fuel consisting primarily of methane but including significant quantities of ethane, butane, propane, carbon dioxide, nitrogen, helium and hydrogen sulfide. Obtained from oil fields and natural gas fields, and in coal beds. Methane-rich gases are produced by the anaerobic decay of non-fossil organic material, ie biogas. Total world production of natural gas in 1986 was 100 trillion m3 . It is used as feed stock as well as fuel. It is preferred due to its high Calorific Value
52 Pages 695 Views 0 Downloads 1.17 MB
Calculus 1
The best copy to use inorder to Excel
81 Pages 1392 Views 0 Downloads 841.91 KB
Calculus 1 First Year Trending!
Excelling in Calculus is the key
81 Pages 3725 Views 2 Downloads 841.91 KB