,,, [ PEO2PPO2PEO ( EO) n ( PO) m ( EO) n ] , PEO2. (37 ), Lee [5 ] Pluronic F127 ( PEO 99 PPO 67 PEO 99 ) , F127 B 12

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1 PEO2PPO2PEO 1,2, 3, 2 2 1,, 3 1, (1., ; 2., ) : 2 2, 2 2,, 2 2,, : 2 2 ; ; 2 2 [ PEO2PPO2PEO ( EO) n ( PO) m ( EO) n ],,PEO2PPO2PEO,,,, PEO2PPO2PEO, 1 PEO2PPO2PEO PEO2PPO2PEO,, PPO [1,2, PEO ], PEO,, [3 PEO2PPO2PEO, ] 111 PEO2PPO2PEO PEO2PPO2PEO, PEO2 PPO2PEO,, [4, ] PEO2PPO2PEO (37 ), Lee [5 ] Pluronic F127 ( PEO 99 PPO 67 PEO 99 ),,F127,,, (MRSA) Pisal [6 ] Pluronic F127 B 12, F127 : ( :J YM ) ; :,, ; 3, E2mail edu. cn.

2 10 35,,,PEO2PPO2PEO,, Kim [7,8 ] PEO2PPO2PEO 2,PEO2PPO2PEO ( PCL), PCL2PEO2PPO2PEO2PCL PCL, PEO2PPO2PEO, ( 1),,,, PCL PPO, Rafael [9 ] PEO2PPO2PEO,, Marin [10 ] PEO2PPO2PEO,,,,PEO2PPO2PEO,,, Hasseini [11 ] Pluronic P105 (PEO 37 PPO 56 PEO 37 ), ( N, N2 ) P105,,, 1 [8 ] 15 45, PluronicΠPCL Figure 1 Release behaviors of indomethacin from Pluronic ΠPCL copolymeric nanospheres between 15 and PEO2PPO2PEO PEO2PPO2PEO, ( ) PEO2PPO2PEO, [12 ] Kabanov [13 ] Pluronic P85 (PEO 26 PPO 40 PEO 26 ) B, B, Batrakova [14 ] PEO2PPO2PEO, PEO2PPO2PEO,,

3 PEO2PPO2PEO 2, PEO2PPO2 PEO, [1517, ] PEO2PPO2PEO DNA, Nguyen [18 ] Pluronic P123 ( PEO 39 PPO 70 PEO 39 ) (P1232g2PEI(2K) ),Pluronic P123 DNA P1232g2PEI(2K) (110nm), 24h,,,P1232g2PEI(2K), Gebhart [19 ] P1232g2PEI(2K) 2 PEO2PPO2PEO PEO2PPO2PEO,, ( ECM), [20, ] 211 PEO2PPO2PPO,,,, Pluronic F68 ( PEO 75 PPO 30 PEO 75 ), Palomars [21 ] (Vp7), Pluronic F68,, 212 PEO2PPO2PEO ( ECM) ECM, ECM, ECM ECM PEO2PPO2PEO ECM Tan [22 ] Pluronic F68 F68, F68,,ECM PEO2PPO2PEO, Terada [23 ] (PGA) Pluronic F127, Pluronic F127,, Idrus [24 ] Pluronic F127, Pluronic, ( HDP), ( ), Pluronic, 213 PEO2PPO2PEO,, PEO2PPO2PEO ECM,,

4 10 37 PEO2PPO2PEO Gorna [25 ] PEO PEO2PPO2PEO,,1, , Π,PEO2PPO2PEO, Zhang [26 ] Pluronic F127, ( TIPS) (PLLA), TIPS 1030m, (10100m) ( 100m) Pluronic F127, PPO PLLA,PLLA,,, [27 ] Neff [28,29 ] Pluronic F108 (PEO 128 PPO 54 PEO 128 ) F1082 ( EGAP), (PS), 2 2 (Arg2Gly2Asp,RGD) EGAP,, PS,, RGD PS F108 PS, RGD : ( ECM), 3 PEO2PPO2PEO 311 PEO2PPO2PEO PEO2PPO2PEO PPO,,, Lee [30 ] PEO2PPO2PEO ( PU) PEO, PU PEO, PEO PU, PEO,PEO 80, PU Lee [31 ] PEO2 PEO2PPO2PEO (DOP) (TOTM) ( PVC), PVC PEO2PPO2PEO,PVC PEO, PVC,, PEO2PPO2PEO, PEO, PEO2PPO2PEO Green [32 ] PEO2PPO2PEO ( PS), PS PEO2PPO2PEO, PS ; PEO2PPO2 PEO, PS

5 PPO, PEO Pavey [33 ] (SPR) PEO2PPO2PEO, PEO PEO, PEO PEO2PPO2PEO, PEO2PPO2PEO Nitschke [34 ] PEO2PPO2PEO (PTFE), PTFE PEO2PPO2PEO, PTFE, 312 PEO2PPO2PEO Pemawansa [35 ] (DRM) ( PGNA) PEO2PPO2PEO, PEO2PPO2PEO DRM 15 %PEO2PPO2PEO PGNA, PEO ( 7 ), Guilei [36 ] (PCL) Pluronic F68 ( PEO76PPO29PEO76), (LNG), LNGPCLΠF68, LNG 2 ;PCLΠ F68,,,PCLΠF PEO2PPO2PEO Zhang [26 ] PEO2PPO2PEO PEO2PPO2PEO Derick [37 ] PEO2PPO2PEO ( PIN), PEO2PPO2PEO, B2 PEO,, PEO2PPO2PEO PIN 314 PEO2PPO2PEO,, (,DNA ) PEO2PPO2PEO, Marten [38 ] Pluronic P105, P105 Lev Bromberg [39 ],PEO2PPO2PEO,, ( HAWSP) HAWSP,, PEO2PPO2PEO HAWSP,, DNA 4 PEO2PPO2PEO,PEO2PPO2PEO, PEO2PPO2PEO, ;,,, PEO2PPO2PEO, PEO2PPO2PEO,

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7 PEO2PPO2PEO as Novel Functional Molecules for Biomedical Material ZHANG Yan 1,2, 3, SHAO Fang2ke 2, WU Wei 2, YANG Wu2li 1, 3, FU Shou2kuan 1 (11 The Key Laboratory of Molecular Engineering of Polymers, Ministry of Education, Shanghai , China ; 21 College of MaterialsScaience and Engineering, East China University of Science and Technology, Shanghai , China) Abstract : Poly ( ethylene oxide) 2poly (propylene oxide) 2poly ( ethylene oxide) triblock copolymers have been investigated widely due to their excellent biological compatibility and protein2resistant properties in applications as biomedical materials. Temperature2dependent micellization and thermo2reversible gelation are two of the most characteristic properties of aqueous PEO2PPO2PEO block copolymer solutions. PEO2PPO2 PEO is found to be a drug delivery system with multiple effects. The incorporation of drug into the core of the micelles formed by PEO2PPO2PEO results in increased solubility, metabolic stability and circulation time for the drug. This Paper described the use of such copolymers for drug delivery system and tissue engineering in some detail. Key words : PEO2PPO2PEO ; Biomedical materials ; Drug delivery system ; Tissue engineering