作者:Merve Zeyrek Ongun、Kadriye Ertekin、Said Nadeem、Ozgül Birel
DOI:10.1007/s10895-016-1927-8
日期:2016.11
Recent investigations indicated that same concentrations of the ionic silver have harmful effects on aquatic life, bacteria and human cells. Herein we report chemosensory properties of N,N ′ -Bis(4-2-[2-(2-methoxyethoxy)ethoxy] eth- oxy}phenyl) -3,4:9,10-perylene tetracarboxydiimide (PERKAT) towards ionic silver. The dye doped sensing agents were prepared utilizing ethyl cellulose (EC) and poly (methylmethacrylate) (PMMA) and then forwarded to electrospinning to prepare sensing fibers or mats. The PERKAT exhibited bright emission in embedded forms in EC or in the solvents of N,N-Dimethylformamide (DMF), Dichloromethane (DCM), Tetrahydrofurane (THF) and in the mixture of DCM/ethanol. The PERKAT exhibited selective and linear response for ionic silver in the concentration range of 10−10 – 10−5 M Ag (I) at pH 5.5. Detection limits were found to be 2.6 × 10−10 and 4.3 × 10−11 M, in solution phase studies and PERKAT doped sensing films, respectively. Cross sensitivity of the PERKAT towards pH and some metal ions was also studied. There were no response for the Li+, Na+, K+, Ca2+, Ba2+, Mg2+, NH4 +, Ni2+, Co2+, Cu2+,Pb2+, Al3+, Cr3+,Mn2+, Sn2+, Hg+, Hg2+, Fe2+ and Fe3+ in buffered solutions. To the best of our knowledge, this is the first study investigating silver sensing abilities of the PERKAT.
最近的研究表明,相同浓度的离子
银会对
水生
生物、细菌和人体细胞产生有害影响。在此,我们报告了 N,N′-双(4-2-[2-(2-甲氧基乙氧基)乙氧基]乙氧基}苯基)-3,4:9,10-
苝四羧基二
亚胺(PERKAT)对离子
银的
化学感应特性。掺杂
染料的传感剂是利用
乙基纤维素(
EC)和
聚甲基丙烯酸甲酯(P
MMA)制备的,然后进行电纺丝以制备传感纤维或垫。PERKAT 在嵌入
EC 或
N,N-二甲基甲酰胺 (
DMF)、
二氯甲烷 (DCM)、
四氢呋喃 (THF) 溶剂以及
二氯甲烷/
乙醇混合物中均表现出明亮的发射光谱。在 pH 值为 5.5、浓度范围为 10-10 - 10-5 M Ag (I) 的条件下,PERKAT 对离子
银具有选择性和线性响应。在溶液相研究和掺杂 PERKAT 的传感薄膜中,检测限分别为 2.6 × 10-10 和 4.3 × 10-11 M。还研究了 PERKAT 对 pH 值和一些
金属离子的交叉敏感性。在缓冲溶液中,PERKAT 对 Li+、Na+、K+、Ca2+、Ba2+、Mg2+、NH4+、Ni2+、Co2+、Cu2+、Pb2+、Al3+、Cr3+、Mn2+、Sn2+、Hg+、Hg2+、Fe2+ 和 Fe3+ 没有反应。据我们所知,这是首次研究 PERKAT 的
银传感能力。