Design and development of tissue engineering scafflods using rapid prototyping technology

... 173-178 6- 12 41.4-55 .2 3-10 1.4 -2. 8 55-60 12- 16 1 .27 1.34 1 .25 27 .6-41.4 3-10 1.4 -2. 8 60-65 >24 1 .24 55 .2- 82. 7 5-10 2. 8-4 .2 PGA 185 -22 5 25 -65 6- 12 1.53 >68.9 15 -20 >6.9 PCL 58-68 - 70 >24 1.11 20 .7-34.5 ... rates of all such polymers, the structural stability of PCL permits the study of fabrication and characterization as a tissue engineering scaffold...

Ngày tải lên: 14/09/2015, 10:20

... 64. 3 51500 1.6 55.3 39. 64 PCL-PEG Raw 63.5 33000 1.6 62 44 .44 PCL-PEG Scaffold 65.3 33600 1.7 61.8 44 .30 PCL-PEG-PCL Raw 64. 4 30000 1.8 48 34. 41 PCL-PEG-PCL Scaffold 65.6 31700 1.7 47 .2 33. 84 ... (bar) Figure 4. 11: Influence of extrusion pressure on RW and porosity of the scaffolds fabricated with lay-down pattern of 0/90 and nozzle size of 500 µm 113 Chapter Fou...

Ngày tải lên: 14/09/2015, 10:23

... Chapter Five: Conclusions and Recommendations 5. 1 Conclusions A desktop robot based rapid prototyping (DRBRP) melt extrusion system was designed and developed in house ... filament diameter and consequently, the pore size and porosity A range of filament diameter (3 75 to 623 µm) and porosity ( 45 to 75% ) was obtained by varying the process parameters In spite of...

Ngày tải lên: 14/09/2015, 10:23

... accuracy of up to 2°C and the feed rate had the deposition speed accuracy of up to 3mm/min Material Loading Port Teflon Insulator Figure 3. 2: Four-axes desktop robot-based rapid prototyping system 3. 4.2 ... (0/90°, 0/60/120° and 0 /30 /60/90/120/150°) as shown in Figure 3. 4 using appropriate positioning of the robotic control system The lay-down patterns of 0/90°, 0/60...

Ngày tải lên: 14/09/2015, 11:12

... those of the tissues at the site of implantation e) Be easily fabricated to form a variety of shapes and sizes In the early days of tissue engineering, FDA approved devices and implants made of ... number of materials as well as scaffold design have been experimentally and/ or clinically studied For the treatment of tissues/organs in malfunction, one of the challenge...

Ngày tải lên: 14/09/2015, 11:12

... (lateral collateral ligament and medial collateral ligament) , and two interior ligaments (anterior cruciate ligament (ACL) and posterior cruciate ligament) , which help control stabilisation and ... Rotating Wall Bioreactor 28 2.2.2.3 The Flow Perfusion Bioreactor 29 CHAPTER 3: DESIGN AND FABRICATION OF BIAXIAL MECHANICAL STIMULATION AND PERFUSION BIOREACTOR 32 3....

Ngày tải lên: 04/10/2015, 10:25

... moment gyro (CMG) as an actuator The control moment gyro (CMG) is typically used in a spacecraft to orient the vessel [5] Appling a CMG as an actuator to balance a bicycle is a creative and novel approach; ... provides a comparison of the various methods to balance a bicycle, evaluated their advantages and disadvantages The most significant contribution of thi...

Ngày tải lên: 02/10/2015, 17:14

... determining the SOFC system performance The detailed designs of each of these components in the INER SOFC system are described in the following subsections 3.1 Flow distributor In general, an SOFC ... 44%) Design of SOFC BOP components The BOP components of a SOFC system account for between 50% and 70% of the total system cost Due to the high operating temper...

Ngày tải lên: 05/09/2013, 16:10

... from medical aspects, a 3-PUU translational parallel manipulator was chosen and designed to satisfy the specific requirement The kinematic analysis was performed and the manipulatorreachable workspace ... represents an ∂R equation in a single variable R and allows the calculation of the values of R and H in sequence B Design Variables and Objective Function The architec...

Ngày tải lên: 04/08/2014, 09:54

... The goal of this thesis is the design of a surface acoustic wave (SAW) pressure sensor using Aluminium Nitride (AlN) Theoretical studies, realization, and characterization of the pressure sensor ... between four sensors 11 SAW sensor and the application pressure sensor in this research 12 1.1.6.1 1.1.6.2 SAW pressure sensor with one port IDT 13 SAW pres...

Ngày tải lên: 13/11/2014, 08:38

... for transdermal delivery of schizandrol A More specifically, the aims are: Establishing a detailed preformulation and solubility profile of schizandrol A Physicochemical properties of schizandrol ... shengmaisan in rat after oral administration and pharmacokinetic results demonstrated that schizandrol A was rapidly absorbed in blood, rapidly eliminated after h a...

Ngày tải lên: 10/09/2015, 09:03

... connection and data reliability mechanism A UDP datagram has a header and a payload The application data is carried as payload and the header carries the necessary information for protocol operation A ... volume of and the increasingly critical role played by data storage, there is a strong demand to put data storage on network Therefore, how to share data, improve...

Ngày tải lên: 16/09/2015, 15:54

... chiller and the combined thermoelectric adsorption chiller 14 Chapter Design, development and fabrication of an electro- adsorption chiller Chapter Design, development and fabrication of an electro- adsorption ... 2.4 Electro- adsorption chiller (EAC) 11 2.4.1 Adsrobent- adesorbate pair 13 2.4.2 Performance of an electro- adsorption chiller 13 Chapter...

Ngày tải lên: 04/10/2015, 10:25

... that make it acts as an open circuit and also the tank circuit appears to be a Design and Development of a CMOS Power Amplifier for Digital Applications 34 CHAPTER 3: Fundamentals of Power Amplifier ... Scattering Design and Development of a CMOS Power Amplifier for Digital Applications 40 CHAPTER 4: Power Amplifier: Design Implementa...

Ngày tải lên: 04/10/2015, 10:25