Essays on Carboxyl Group

Chemistry

2. The nano carrier needs to remain in suspension in H2O, PBS, human serum, etc. What type of polymer do you need to use to decorate the surface of the nanocarrier to achieve this goal? In order to maintain the nanocarrier in suspension in water, Phosphate-Buffered Saline (PBS), human serum a suitable solution a polymer is needed on its surface. The polymer used needs to accomplish three goals. The polymer needs to decorate the nanocarrier surface to enhance suspension and secondly, to prevent protein absorption. Another characteristic is that the polymer evades the immune system. PLGA poly(lactic-co-)glycolic ...

Lysine

Amino acids are organic molecules, the monomers of proteins that contain both amino and carboxyl groups. Proteins of a cell mostly contain 20 types of amino acids that differ in the side chain known as R group. Therefore, the properties of the amino acid in protein fully depend on the characteristics of the side chains.

Lysine is an essential amino acid, that means it cannot be synthetized in the human organism. The side chain of the lysine molecule contains an additional amino group attached to the carbon skeleton. Because of the positive charge in the side chain, the charge ...

Introduction

The term lipids is used to refer to a group of organic compounds that are naturally occurring and that are all soluble in non-organic solvents such as benzene , chloroform, acetone and ether but not soluble in water. The later characteristic means that lipids can also be defined as amphiphilic or hydrophobic small modules. This amphophilic nature of lipids essentially allows them to be able to form structures such as liposome’s, vesicles or membranes when subjected to aqueous environments. The biological lipids mainly originate from two major build-blocks or biochemical sub-units: isoprene and ketoacyl groups. Another distinct characteristic of lipids ...

Abstract

The aim of this experiment was to determine the titration curves exhibited by two amino acids (Glutamic acid and Alanine) and use them to determine their Pka values and their isolectric point. Results from the experiment reveal several interesting facts as will be seen throughout this paper. As ampoteric compounds, this paper seeks to investigate these base-acid properties found in amino acids. Therefore, this paper will have the following basic parts; introduction, procedure for titration, discussion of titration results with reference to the titration curves as well as a conclusion. The introduction part will give an in-depth look at the ...

Regulation of body pH occurs either through pH regulation or pH compensation. Regulation occurs as a combined effort of buffer systems, and respiratory and renal systems. Normal metabolism produces acidic wastes, for example, carbonic and lactic acid. These products increase acidity of body fluids and cause a shift in body pH away from the normal alkaline nature. Buffers help to prevent the shift towards an acidosis, and hence maintain pH of the blood and the body. Buffers also facilitate maintenance of narrow pH ranges of body fluids. Maintenance of this narrow range is crucial since biochemical reactions are affected by concentration ...