{"title":"[Co(DTPA)]3− complex in gelatin gel as a highly sensitive shifting NMR/MRI temperature probe","authors":"S. P. Babailov","doi":"10.1007/s10847-022-01151-4","DOIUrl":null,"url":null,"abstract":"<div><p>The temperature sensitivity of paramagnetic chemical shifts in <sup>1</sup>H NMR spectra for the [Co(DTPA)]<sup>3−</sup> complex in 10% gelatin gel (as a model substrate of human or animal tissues) was studied in detail. The maximum temperature sensitivity of the chemical shifts <i>d(δ</i><sub><i>exp</i></sub><i>)/dT</i> studied in the gelatin gel of the complex was found to be 0.73 ppm/K (which is about 7% higher than in the previously studied D<sub>2</sub>O solution of the compound). It turned out that the studied complex is characterized by the highest temperature sensitivity of chemical shifts in the NMR spectra among the complexes of paramagnetic <i>d</i>-elements. Moreover, this complex also shows the highest temperature sensitivity of chemical shifts taking into consideration the half-width of the signal itself <i>(|CT|/W</i> = 0.8 K<sup>−1</sup>). The [Co(DTPA)]<sup>3−</sup> complex can be considered as a promising compound for the design of temperature-sensitive NMR probes aimed at determining the local temperature in aqueous media and prospective MRI-assisted disease diagnosis.</p></div>","PeriodicalId":54324,"journal":{"name":"Journal of Inclusion Phenomena and Macrocyclic Chemistry","volume":"102 7-8","pages":"705 - 710"},"PeriodicalIF":1.7000,"publicationDate":"2022-06-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s10847-022-01151-4.pdf","citationCount":"2","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of Inclusion Phenomena and Macrocyclic Chemistry","FirstCategoryId":"92","ListUrlMain":"https://link.springer.com/article/10.1007/s10847-022-01151-4","RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"CHEMISTRY, MULTIDISCIPLINARY","Score":null,"Total":0}
引用次数: 2
Abstract
The temperature sensitivity of paramagnetic chemical shifts in 1H NMR spectra for the [Co(DTPA)]3− complex in 10% gelatin gel (as a model substrate of human or animal tissues) was studied in detail. The maximum temperature sensitivity of the chemical shifts d(δexp)/dT studied in the gelatin gel of the complex was found to be 0.73 ppm/K (which is about 7% higher than in the previously studied D2O solution of the compound). It turned out that the studied complex is characterized by the highest temperature sensitivity of chemical shifts in the NMR spectra among the complexes of paramagnetic d-elements. Moreover, this complex also shows the highest temperature sensitivity of chemical shifts taking into consideration the half-width of the signal itself (|CT|/W = 0.8 K−1). The [Co(DTPA)]3− complex can be considered as a promising compound for the design of temperature-sensitive NMR probes aimed at determining the local temperature in aqueous media and prospective MRI-assisted disease diagnosis.
期刊介绍:
The Journal of Inclusion Phenomena and Macrocyclic Chemistry is the premier interdisciplinary publication reporting on original research into all aspects of host-guest systems. Examples of specific areas of interest are: the preparation and characterization of new hosts and new host-guest systems, especially those involving macrocyclic ligands; crystallographic, spectroscopic, thermodynamic and theoretical studies; applications in chromatography and inclusion polymerization; enzyme modelling; molecular recognition and catalysis by inclusion compounds; intercalates in biological and non-biological systems, cyclodextrin complexes and their applications in the agriculture, flavoring, food and pharmaceutical industries; synthesis, characterization and applications of zeolites.
The journal publishes primarily reports of original research and preliminary communications, provided the latter represent a significant advance in the understanding of inclusion science. Critical reviews dealing with recent advances in the field are a periodic feature of the journal.