How Does It Works And How It Is Used

Although tissue engineers and researchers have already succeeded with creating new skin, blood vessels, bone and cartilage, the more complex organs are difficult to reproduce because of their different functions. Researchers must also be concerned with the mechanisms of growing the tissue. For instance, the advantages and disadvantages are not yet clear for the length of time the cells should be exposed to the growth factors or the difference between growing the tissue outside the body or implanting the scaffold inside the body and letting the tissue grow there. Scaffolding and injectable polymers that form scaffolds in irregular areas (like bone fractures) are also being improved. Much more research is being conducted in order to grow the hearts, livers, breasts, kidneys, and other valuable organs that so many people need.

1) For the short- run elasticity is estimated to be between 0.1 and 0.2, which can be calculated by

This report aims to analyse and discuss the results of carrying out tensile tests for two materials, in this case Mild Steel and Nylon. The purpose of this is to use the information generated to calculate Young’s Modulus, Yield Stress, Tensile Strength, and Percentage Elongation. These properties must be known before designing a product using the materials tested, because the anticipated behaviour of the material must be suitable for the design specification, with a margin left for safety.

Deflections of a beam are important to be able predict the amount of deflection for a given loading situation. This experiment addresses determining the yield point for a material to fail, so the stress in the material does not have to reach to that point. This is where understanding beam deflection becomes a useful tool. This experiment is using beam deflection theory to evaluate and compare observed deflection per load values to theoretical values. Beam deflection experiment done by four parts. Part 1 -Simple Supported Bean, part

It requires a specimen of 4mm long. This test is based on one-dimensional wave theory. The test was conducted at a variety of temperatures above and below zero. Dry ice was used to conduct the tests at a temperature of -30°C. An induction heater was used for the temperatures above room temperature. The strain gauges were placed such that the heating of the specimen did not affect them. The Hopkinson Equations can be used without modification if the following conditions are met: the whole apparatus is at the same temperature or only the specimen is at the test temperature and the apparatus is at room temperature. For elevated temperatures the Hopkinson Equations have to be adjusted to account for the heat allowing for more accurate results.

There are four main types of tissue in the body; muscle, connective, epithelial, and nervous tissues []. In this paper, I will be covering the replacement of both hard and soft tissues. As organs are the most frequently replaced body part I will be covering them separately

Currently, alternatives, such as mechanical devices and artificial prostheses, don’t repair tissue or organ functions because they are not intended for integrating host tissues, and if these alternatives are used for long-term implantation, the recipient could suffer from an inflammatory response (Chapekar). For illnesses such as end-stage liver disease, the only successful treatment is through transplant, and the odds of receiving a new liver is improbable (Kaihara and Vacanti). Another treatment must be discovered. In 1988, a NSF sponsored meeting defined a new treatment idea called tissue-engineering: the “application of the principles and methods of engineering

All testing was carried out using DMA with a cantilever setup. Two different tests were carried out. For the first test, the HDPE was held at a constant temperature of 31°C and varying stresses were applied for two seconds at a time, during which the strain in the sample was recorded.

Tissue engineering has been an opportunity to restore the human condition from wounded to whole through the combination of biological, biochemical, and biomechanical concepts. Unlike traditional transplantation, tissue engineering and regenerative medicine uses a patient’s own cells to fabricate new tissues which are then grafted back into his or her body. Of course, the goal is to apply the practices in the lab to the general public and to develop a new and more effective means to treat patients with severe tissue loss and/or organ failure.

From tensile test, how the material will react to forces being applied in tension can be determined. As the material is pulled by machine, material’s strength can be found along its elongation.

The MRI – Magnetic Resonance Imaging – is a non-invasive medical procedure that uses a powerful magnetic field and radio frequency pulses to produce detailed images of soft-tissue, organs, blood vessels, bone and nearly all other internal body structures. These detailed images allow physicians to evaluate various parts of the body and diagnose and treat various medical conditions. Unlike X-rays and CT scans, MRI machines produce 3D images of the body without the use of ionizing radiation. The traditional MRI machine is a large cylindrical tube surrounded by a powerful magnet, with the patient situated on an examination table that slides into the centre of the tube. Doctors often use the MRI to view

The objective of this lab is to find the relationship between tensile stress and strain for various materials. The Stress-Strain Apparatus stretches (and in some cases breaks) a test coupon while it measures the amount of stretch and force experienced by the test coupon. Software is used to generate a plot of stress versus strain, which allows Young's Modulus, the elastic region, the plastic region, the yield point,

Thin wall structures comprised of hyper-elastic materials are commonly found throughout many engineering disciplines (i.e. mechanical and biomechanical engineering). Such devices are utilized

“Technology takes a new leap every day. New designs and components will require high resolutions for monitoring health and structural characteristics and also to test their performance. The quality of new devices directly implies on the level which we can measure their performance. Conventional techniques which have been lasting for so long will not provide the high resolutions needed for new and advancing designs for the measurements of different quantities, mainly strain. Some of the conventional methods like Classic foil strain gauges and accelerometers have been trusted and used for several years to measure the strains on various buildings, air planes, human body, and many others, which end up failing during harsh conditions.

Because of the unlimited number of matrix/ fiber combinations that can be used to form composites, and the great number of variables that can be controlled in composite materials, composites can attain a wide range of mechanical properties. For instance, the mechanical properties depend on the properties of both the matrix and the fiber phases; as that, the