Synthesis of luminescent lanthanide complexes within crosslinked protein crystal matrices†,CrystEngComm

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Synthesis of luminescent lanthanide complexes within crosslinked protein crystal matrices†
CrystEngComm ( IF 2.6 ) Pub Date : 2018-03-21 00:00:00 , DOI: 10.1039/c8ce00318a
Yu Zhang _{1,

2,

3,

4,

5} , Xiaoting Zhang _{1,

2,

3,

4,

5} , Jianguo Tang _{1,

2,

3,

4,

5} , Christopher D. Snow _{6,

7,

8,

9,

10} , Guotao Sun _{1,

2,

3,

4,

5} , Ann E. Kowalski _{6,

7,

8,

9} , Luke F. Hartje _{7,

8,

9,

10} , Ning Zhao _{7,

8,

9,

10} , Yao Wang _{1,

2,

3,

4,

5} , Laurence A. Belfiore _{1,

2,

3,

4,

5}

Affiliation

Crosslinked protein crystals offer unique properties as a host matrix for hybrid materials, due to their precise periodic array of solvent channels suitable for the capture of functional guest molecules. To prepare luminescent protein crystals containing guest Eu(TTA)₃phen (TTA = 4,4,4-trifluoro-1-(2-thienyl)-1,3-butanedionato, phen = 1,10-phenanthroline), we developed a solvent substitution scheme in which the crystals were first loaded with the hydrophobic ligands and subsequently loaded with Eu(III) in anhydrous ethanol. Notably, we also observed crystal denaturation and renaturation, concomitant with a dramatic volume expansion, in response to high DMSO concentrations. Given the possible future utility of this reversible expansion for hybrid materials preparation, we characterized the volumetric changes quantitatively.

中文翻译：

在交联的蛋白质晶体基质中合成发光的镧系元素络合物†

交联的蛋白质晶体由于适合于捕获功能性客体分子的溶剂通道的精确周期性排列，因此可作为杂化材料的宿主基质提供独特的性能。为了制备包含客体Eu（TTA）₃ phen（TTA = 4,4,4-三氟-1-（2-噻吩基）-1,3-butanedionatoato，phen = 1,10-phenothroline）的发光蛋白质晶体，我们开发了一种溶剂取代方案，其中首先将疏水性配体装载到晶体上，然后将Eu（III）装载到晶体上）在无水乙醇中。值得注意的是，我们还观察到了响应高DMSO浓度的晶体变性和复性，伴随着巨大的体积膨胀。鉴于这种可逆扩展材料在混合材料制备中的未来应用前景，我们定量表征了体积变化。

更新日期：2018-03-21

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