MARC details
| 000 -LEADER |
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| fixed length control field |
02633nam a2200265Ia 4500 |
| 003 - CONTROL NUMBER IDENTIFIER |
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| control field |
MX-MdCICY |
| 005 - DATE AND TIME OF LATEST TRANSACTION |
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| control field |
20250625140626.0 |
| 040 ## - CATALOGING SOURCE |
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| Transcribing agency |
CICY |
| 090 ## - LOCALLY ASSIGNED LC-TYPE CALL NUMBER (OCLC); LOCAL CALL NUMBER (RLIN) |
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| Classification number (OCLC) (R) ; Classification number, CALL (RLIN) (NR) |
B-10174 |
| 008 - FIXED-LENGTH DATA ELEMENTS--GENERAL INFORMATION |
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| fixed length control field |
250602s9999 xx |||||s2 |||| ||und|d |
| 245 10 - TITLE STATEMENT |
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| Title |
A new peptide-based urethane polymer: synthesis, biodegradation, and potential to support cell growth in vitro |
| 490 0# - SERIES STATEMENT |
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| Volume/sequential designation |
BioMaterials, 21(12), p.1247-1258, 2000 |
| 520 3# - SUMMARY, ETC. |
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| Summary, etc. |
A novel non-toxic biodegradable lysine-di-isocyanate (LDI)-based urethane polymer was developed for use in tissue engineering applications. This matrix was synthesized with highly puri"ed LDI made from the lysine diethylester. The ethyl ester of LDI was polymerized with glycerol to form a prepolymer. LDI}glycerol prepolymer when reacted with water foamed with the liberation of CO 2 to provide a pliable spongy urethane polymer. The LDI}glycerol matrix degraded in aqueous solutions at 100, 37, 22, and 43C at a rate of 27.7, 1.8, 0.8, and 0.1 mM per 10 days, respectively. Its thermal stability in water allowed its sterilization by autoclaving. The degradation of the LDI}glycerol polymer yielded lysine, ethanol, and glycerol as breakdown products. The degradation products of LDI}glycerol polymer did not signi"cantly a!ect the pH of the solution. The glass transition temperature (¹')of this polymer was found to be 103.43C. The physical properties of the polymer network were found to be adequate to support the cell growth in vitro, as evidenced by the fact that rabbit bone marrow stromal cells (BMSC)attached to the polymer matrix and remained viable on its surface. Culture of BMSC on LDI}glycerol matrix for long durations resulted in the formation of multilayered con#uent cultures, a characteristic typical of bone cells. Furthermore, cells grown on LDI}glycerol matrix did not di!er phenotypically from the cells grown on the tissue culture polystyrene plates as assessed by the cell growth, and expression of mRNA for collagen type I, and transforming growth factor-b1 (TGF-b1). The observations suggest that biodegradable peptide-based urethane polymers can be synthesized which may pave their way for possible use in tissue engineering applications |
| 650 14 - SUBJECT ADDED ENTRY--TOPICAL TERM |
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| Topical term or geographic name entry element |
LYSINE-DI-ISOCYANATE |
| 650 14 - SUBJECT ADDED ENTRY--TOPICAL TERM |
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| Topical term or geographic name entry element |
GLYCEROL |
| 650 14 - SUBJECT ADDED ENTRY--TOPICAL TERM |
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| Topical term or geographic name entry element |
URETHANE POLYMER |
| 650 14 - SUBJECT ADDED ENTRY--TOPICAL TERM |
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| Topical term or geographic name entry element |
OSTEOBLASTS |
| 650 14 - SUBJECT ADDED ENTRY--TOPICAL TERM |
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| Topical term or geographic name entry element |
CELL CULTURE |
| 700 12 - ADDED ENTRY--PERSONAL NAME |
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| Personal name |
Zhang, J.Y. |
| 700 12 - ADDED ENTRY--PERSONAL NAME |
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| Personal name |
Beckman, E.J. |
| 700 12 - ADDED ENTRY--PERSONAL NAME |
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| Personal name |
Piesco, N.P. |
| 700 12 - ADDED ENTRY--PERSONAL NAME |
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| Personal name |
Agarwal, S. |
| 856 40 - ELECTRONIC LOCATION AND ACCESS |
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| Uniform Resource Identifier |
<a href="https://drive.google.com/file/d/1tgFKR2HSzSuDGCCnwcpYqNT9kx3CPycU/view?usp=drivesdk">https://drive.google.com/file/d/1tgFKR2HSzSuDGCCnwcpYqNT9kx3CPycU/view?usp=drivesdk</a> |
| Public note |
Para ver el documento ingresa a Google con tu cuenta: @cicy.edu.mx |
| 942 ## - ADDED ENTRY ELEMENTS (KOHA) |
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| Source of classification or shelving scheme |
Clasificación local |
| Koha item type |
Documentos solicitados |
