RSC Advances p. 9967 - 9977 (2016)
Update date:2022-08-03
Topics:
?nal, Emel
Ay, Zeynep
Yel, Zübeyde
Ertekin, Kadriye
Gürek, Ay?e Gül
Topal, Sevinc Zehra
Hirel, Catherine
Room temperature phosphorescent oxygen sensors have been designed by embedding symmetric palladium(ii) or platinum(ii) meso-tetraphenylporphyrins in poly(1-trimethylsilyl-1-propyne) in the form of nanofibers along with/without silver nanoparticles. These materials combine the advantages of the high oxygen sensitivity of porphyrins and the enhanced surface area of porous nanofibers. Phenylacetylide bearing palladium(ii) or platinum(ii) meso-tetraphenylporphyrins (Pd-TPA, Pt-TPA, Pd-TPP and Pt-TPP) were designed to enhance phosphorescence quantum yields as well as sensitivity towards oxygen. Their syntheses were achieved by 2 alternative methods including successive metallation reactions and Sonogashira coupling via optimization of the synthetic strategies and conditions. The respective effect of the metal (Pd or Pt) and substituent on phosphorescence quantum yield as well as other photophysical properties was considered. The sensing performances of the corresponding silver-free and silver doped nanofibers were tested in the oxygen concentration range of 0.0-100.0%. The offered composites provided the advantages of fast response, enhanced sensitivity, reversible and long lasting response, higher Stern-Volmer constants (KSV) and low limit of detection values extending to 7.5 ppm for oxygen.
View Morewebsite:http://www.finetechnology-ind.com
Contact:86-27-87465837
Address:wuhan
Xiamen Huasing Chemicals Co.Ltd.
Contact:0086-592-6228397
Address:NO.24, Xinglin North 2nd Road,Jimei district
Chongqing Rong&Quan Pharmaceutical Technology Co. , Ltd.
Contact:86-023-65268721
Address:No. 7, Manshanhong Village, Pingdingshan, Shapingba District, Chongqing Province, China
Contact:+86-913-2223392
Address:No. 32, Xinanjing Road, Weinan City, Shaanxi Province, 714000, China
Yangzhou Zhongbao Pharmaceutical Co.,Ltd
Contact:+86-514-88290838
Address:Jiangsu Baoying county economic develpment zone in baoying avenue91
Doi:10.1016/j.tet.2014.02.092
(2014)Doi:10.1002/anie.201908571
(2019)Doi:10.1021/jacs.5b01475
(2015)Doi:10.1016/S0040-4020(01)89289-9
(1994)Doi:10.1016/S0040-4039(00)76897-3
(1994)Doi:10.1016/j.cclet.2014.01.019
(2014)