PEG-b-P(MEO2MA-co-ZQMA) micelles possess a slightly decreased detection limit for Zn2+ (∼14 nM), reversible binding between ZQMA moieties and Zn2+ ions at 37 °C can be achieved, as evidenced by the on/off switching of fluorescence emission via the sequential addition of Zn2+ and EDTA. In vitro fluorescence imaging studies suggested that the micelles can effectively enter into living cells and sensitively respond to
我们报道了基于响应性双亲
水嵌段共聚物(DHBCs)的Zn 2+离子和温度双荧光
化学传感器的制备,并研究了热诱导胶束化和检测条件对Zn 2+离子探测灵敏度和结合可逆性的影响。首先合成了一种新型的基于
喹啉的极性敏感型和Zn 2+识别型荧光单体(ZQMA,6)。明确定义的DHBC在热响应嵌段P
EG- b -P(M
EO 2 MA- co -OE
GMA- co中带有
喹啉基Zn 2+识别部分(ZQMA)-ZQMA)是通过在存在下通过2-(2-甲氧基乙氧基)
甲基丙烯酸乙酯(M
EO 2 MA),低聚
乙二醇单甲基醚
甲基丙烯酸甲酯(OE
GMA)和ZQMA的可逆加成-断裂链转移(RAFT)聚合而合成的P
EG的MAcroRAFT试剂的制备。热敏嵌段中的OE
GMA含量在0-12.0 mol%的范围内变化,以调节其较低的临界溶液温度(LCST)。在20°C时,几乎无荧光的P
EG- b - P(M
EO 2 MA- co-