A Low-Temperature Thermoplastic Anti-bacterial Medical Orthotic Material Made of Shape Memory Polyurethane Ionomer: Influence of Ionic Group (Record no. 48604)
[ view plain ]
| 000 -LEADER | |
|---|---|
| fixed length control field | 02631nam a2200241Ia 4500 |
| 003 - CONTROL NUMBER IDENTIFIER | |
| control field | MX-MdCICY |
| 005 - DATE AND TIME OF LATEST TRANSACTION | |
| control field | 20250625153941.0 |
| 040 ## - CATALOGING SOURCE | |
| Transcribing agency | CICY |
| 090 ## - LOCALLY ASSIGNED LC-TYPE CALL NUMBER (OCLC); LOCAL CALL NUMBER (RLIN) | |
| Classification number (OCLC) (R) ; Classification number, CALL (RLIN) (NR) | B-14414 |
| 008 - FIXED-LENGTH DATA ELEMENTS--GENERAL INFORMATION | |
| fixed length control field | 250602s9999 xx |||||s2 |||| ||und|d |
| 245 10 - TITLE STATEMENT | |
| Title | A Low-Temperature Thermoplastic Anti-bacterial Medical Orthotic Material Made of Shape Memory Polyurethane Ionomer: Influence of Ionic Group |
| 490 0# - SERIES STATEMENT | |
| Volume/sequential designation | Journal of BioMaterials Science, 20(2), p.199-218, 2009 |
| 520 3# - SUMMARY, ETC. | |
| Summary, etc. | PCL-based shape memory polyurethane ionomers with quaternarized pyridine moieties incorporated through molecular extension were synthesized. These polyurethanes were specifically designed as lowtemperature thermoplastic anti-bacterial orthotic materials. A commercialized orthotic material was employed for comparison. The influence of ionic groups on the properties of orthotic materials was studied. The anti-bacterial properties and cytotoxicity of the polyurethane ionomer were tested. It was found that, different from other researchers_f conclusions, the Coulombic force among cationic groups and the increased cohesion among hard segments after ionization could lead to polyurethane with better phase separation, soft segment phase crystallability and hard segment phase stability. The results of this work indicated that, although the ionic group had the function of improving phase separation, the asymmetric extender had a negative effect on the hard segment phase stability. Several of the main physical properties of the synthesized polyurethane as orthortic materials were studied. The materials mechanical properties at using temperature (ambient temperature 22.C)were improved so it may be used in circumstances where high mechanical strength is required. The fixity ratio was increased; as a result the material may fix shape more precisely according to patient affected parts. At last, a prototype wrist orthotic device was fabricated by hands. The orthotic device percent reductions against Klebsiella pneumoniae and Staphylococcus aureus were 96.2percent and 100percent, respectively. The anti-bacterial activity rating of this device was acceptable and significant according to ASTM E 2149. Cytotoxicity tests indicated that the wrist orthotic material was not cytotoxic. |
| 650 14 - SUBJECT ADDED ENTRY--TOPICAL TERM | |
| Topical term or geographic name entry element | ORTHOTIC MATERIAL |
| 650 14 - SUBJECT ADDED ENTRY--TOPICAL TERM | |
| Topical term or geographic name entry element | SHAPE MEMORY POLYURETHANE |
| 650 14 - SUBJECT ADDED ENTRY--TOPICAL TERM | |
| Topical term or geographic name entry element | IONOMER |
| 700 12 - ADDED ENTRY--PERSONAL NAME | |
| Personal name | Meng, Q. |
| 700 12 - ADDED ENTRY--PERSONAL NAME | |
| Personal name | Hu, J. |
| 700 12 - ADDED ENTRY--PERSONAL NAME | |
| Personal name | Liu, B. |
| 700 12 - ADDED ENTRY--PERSONAL NAME | |
| Personal name | Zhu, Y. |
| 856 40 - ELECTRONIC LOCATION AND ACCESS | |
| Uniform Resource Identifier | <a href="https://drive.google.com/file/d/1-k26_5HfBGXESveqwim4DR5KrBeADnJx/view?usp=drivesdk">https://drive.google.com/file/d/1-k26_5HfBGXESveqwim4DR5KrBeADnJx/view?usp=drivesdk</a> |
| Public note | Para ver el documento ingresa a Google con tu cuenta: @cicy.edu.mx |
| 942 ## - ADDED ENTRY ELEMENTS (KOHA) | |
| Source of classification or shelving scheme | Clasificación local |
| Koha item type | Documentos solicitados |
| Lost status | Source of classification or shelving scheme | Damaged status | Not for loan | Collection | Home library | Current library | Shelving location | Date acquired | Total checkouts | Full call number | Date last seen | Price effective from | Koha item type |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Clasificación local | Ref1 | CICY | CICY | Documento préstamo interbibliotecario | 25.06.2025 | B-14414 | 25.06.2025 | 25.06.2025 | Documentos solicitados |