Gel electrophoresis

Sweta Soni 2/22/15 Biochem Lab Experiment 5 Introduction The purpose of Experiment 5-1 is to separate a mixture of three molecules—blue dextran, cytochrome c, and potassium chromate—through the use of gel-filtration chromatography. The volume at which each molecule elutes will be recorded in order to determine the accuracy of separation. The purpose of Experiment 5-2 is to purify the E. coli enzyme, β-Galactosidase through the use of affinity chromatography on…

Bovine serum albumin (BSA) is usually used for generation of nanoparticles (NPs) in drug delivery systems. This paper presents a study on the simple coacervation method for fabrication of BSA nanoparticles.An artificial neural network (ANN) model was developed to predict the diameter of nanoparticles based on experimental data. Effect of pH, temperature, initial BSA and cross linker concentration, molar ratio of BSA to ethanol, agitation rate and rate of ethanol addition were investigated on the…

placed inside the gel for two main reasons. One, the gel is a way of holding them to know where they are. Two, the migration needs to occur in a manner that allows for the separation of different-sized pieces of DNA or RNA. The gel has many microscopic holes through which the nucleic acids wiggle as they migrate within the electric field. The smaller the nucleic acid sequence, the easier it is for it to wiggle through the holes. So, smaller pieces of DNA and RNA run through the gel faster than…

Article Comparisons to Southern (1975) Article One The article “Detection of specific sequences among DNA fragments separated by gel electrophoresis” (1975) by E.M. Southern focuses on the way that the fragments of DNA can be transferred from agarose based gels to cellulose nitrate filters. Then fragments themselves are hybridized to active RNA. E.M. Southern’s main influences for the investigation were the studies of Smith and Wilcox (1970), and Kelly and Smith (1970), which showed that the…

Abstract The objective of this lab is to analyze DNA samples using gel electrophoresis and reaction enzymes and then comparing them to the DNA found at a “crime scene” to detect a match. After the experiment was complete the Materials & Methods Part 1 To begin this part of the experiment there needs to be a couple of reaction tubes labeled 1 through 4. First 10 microliters of reaction buffer to reaction tubes 1 and 2. You will then need to add 15 microliters of suspect 1’s DNA to both tubes…

honeybees. The hypothesis is that the four unknown bees are hybridized with a European mother and an African father. The wing-lengths of European, African, and unknown bees were measured, and the mtDNA of eight different bees were subjected to gel electrophoresis. The results showed that African bees were small with one band of mtDNA, European bees were large with two bands of mtDNA, and the unknown bees were of various sizes with two bands of mtDNA. The hypothesis was supported due to the…

person was all the down to the bottom of the gel in DNA. To begin finding out who this person is we need to use DNA out of their bones and finger print samples. Also we will go through a missing persons report, that has occurred in the past week and try to match them up. Another investigation strategy we will use is, electrophoresis to analyze the pattern of bands that are left behind. After we took samples of DNA out of the bones we used gel electrophoresis to separate the DNA fragments…

Reservoir Systems consist of a hollow inner core and a polymer membrane, there to control the rate of drug diffusion. Drug diffusion across the membrane is rate limited and controls general drug release rate (Bajpai et al. 2008). For reservoir systems drug release normally remains steady resulting in a zero order profile (Raval, Parikh and Engineer, 2010). Another technology is called the Multiparticulate drug delivery system which consists of microencapsulated granules/beads containing drug…

periodic intervals over the course of several days. As has been described, air will be passed through the channel to allow greater visibility when images are taken. When viewed sequentially, these pictures will show the change in the appearance of the gel over time. The images will be analyzed using a MATLAB script which analyzes the change in the channel width over time in addition to quantifying hydrogel degradation using a mathematical model similar to those obtained from…

Chapter Three - Conclusions 3.1 Conclusions This research aimed to verify the synthesis protocol for HPA-12 and analogues from aldehydes of Greatrex et al. (2014). Limited success in synthesising required quantities had a negative impact on the outcomes of this research, and no reasons were identified for the low yields that were obtained. Additional time, or resolution of issues resulting in low yields, would have allowed additional research and confirmation of the synthesis protocol. Long…