11 research outputs found
Adamantane, the Building Block in the Construction of Macrocyclic Systems
Dio naÅ”ih istraživanja obuhvaÄa sintezu novih makrocikliÄkih polietera i politialaktona koji sadrže policikliÄke molekule ugraÄene u makrocikliÄki prsten ili vezane kao supstituent pokrajnjeg lanca. Pripravili smo niz oksa-, aza- i tiakrunastih etera s adamantanskom molekulom ugraÄenom u makrocikliÄki prsten i istraživali smo njihovu sposobnost kompleksiranja s metalnim kationima pomoÄu eksperimenata ekstrakcije pikratnih soli alkalijskih metala ili uporabom spektrometrije masa, metodom ionizacije elektrorasprÅ”enjem. NaÅ”li smo da vrsta heteroatoma kao i prisutnost adamantanske podjedinice utjeÄe na selektivnost kompleksiranja metalnih iona, a takoÄer i na ukupnu lipofilnost makrocikliÄkog liganda.Part of our investigation was directed to the synthesis of novel macrocyclic polyethers, which contain polycyclic cage molecule, incorporated into the macrocyclic framework or attached as a side chain. We have prepared a series of adamantane-functionalized oxa-, aza- and thia-crown ethers, and studied their complexation abilities by alkali or transition metal picrate extraction experiments or by electrospray ionization mass spectrometry. In the homogeneous methanol/chloroform solutions as well as, in the extractions of metals from aqueous solution by macrocycles in chloroform, it was found that the type of heteroatom (O, N, S) and presence the adamantanesubstituents, influence the metal selectivity as well as the overall lipophilicity of the macrocyclic ligand
Ispitivanje bioremedijacionog potencijala bakterijskih konzorcijuma sedimenata ÄukariÄkog kanala (Beograd)
Poster presented at: Prvi nauÄnog skupa:āZaÅ”tita životne sredineā, (26. maj 2011., Sremska Kamenica)Abstract: [https://cherry.chem.bg.ac.rs/handle/123456789/5421
Ispitivanje bioremedijacionog potencijala bakterijskih konzorcijuma sedimenata ÄukariÄkog kanala (Beograd)
Poster presented at: Prvi nauÄnog skupa:āZaÅ”tita životne sredineā, (26. maj 2011., Sremska Kamenica)Abstract: [https://cer.ihtm.bg.ac.rs/handle/123456789/5063
Ispitivanje bioremedijacionog potencijala bakterijskih konzorcijuma sedimenata ÄukariÄkog kanala (Beograd)
Cilj ovog rada je procena bioremedijacionog potencijala sedimenata ÄukariÄkog kanala zagaÄenog naftom i njenim derivatima.Poster: [https://cherry.chem.bg.ac.rs/handle/123456789/5422
Ispitivanje bioremedijacionog potencijala bakterijskih konzorcijuma sedimenata ÄukariÄkog kanala (Beograd)
Cilj ovog rada je procena bioremedijacionog potencijala sedimenata ÄukariÄkog kanala zagaÄenog naftom i njenim derivatima.Poster: [https://cer.ihtm.bg.ac.rs/handle/123456789/5064
Potential clinical relevance of uPA and PAI-1 levels in node-negative, postmenopausal breast cancer patients bearing histological grade II tumors with ER/PR expression, during an early follow-up
Quality of Life Is Related to Social Support in Elderly Osteoporosis Patients in a Chinese Population
Pharmacological countermeasures to spaceflight-induced alterations of the immune system
Human bioastronautic programs have grown during the last 50 years. Medical and physiological findings from these missions have demonstrated that spaceflight impacts almost all physiological systems, including bone demineralization and reduced immunological competence. These adaptive responses can affect crew health and performance. Indeed, about half of the astronauts encountered immune dysregulations during space travels. Developing efficient countermeasures to preserve the astronautās immune system is therefore a prerequisite before undertaking future long-duration space missions. In this chapter, we present promising pharmacological countermeasures to mitigate that risk