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pro vyhledávání: '"Jehlička, J"'
Violacein is a bisindole pigment occurring as a biosynthetic product of Chromobacterium violaceum and Janthinobacterium lividum. It has some structural similarities to the cyanobacterial UV-protective pigment scytonemin, which has been the subject of
Externí odkaz:
http://hdl.handle.net/10454/9363
Autor:
Jehlička, J., Edwards, Howell G.M., Osterrothova, K., Novotna, J., Nedbalova, L., Kopecky, J., Nemec, I., Oren, A.
In this paper, it is demonstrated how Raman spectroscopy can be used to detect different carotenoids as possible biomarkers in various groups of microorganisms. The question which arose from previous studies concerns the level of unambiguity of discr
Externí odkaz:
http://hdl.handle.net/10454/10466
Raman spectroscopy is a rapid nondestructive technique providing spectroscopic and structural information on both organic and inorganic molecular compounds. Extensive applications for the method in the characterization of pigments have been found. Du
Externí odkaz:
http://hdl.handle.net/10454/10464
Autor:
Jehlička, J., Edwards, Howell G.M.
Recent studies relating to the analytical chemical characterization of terrestrial extremophiles reveal the presence of biomolecules that have been synthesized for the survival of the colonies in response to the extreme environmental conditions, wher
Externí odkaz:
http://hdl.handle.net/10454/10465
Autor:
Hutchinson, I.B., Parnell, J., Edwards, Howell G.M., Jehlička, J., Marshall, C.P., Harris, L.V., Ingley, R.
The ESA/Roscosmos ExoMars rover will be launched in 2018. The primary aim of the mission will be to find evidence of extinct or extant life by extracting samples from the subsurface of Mars. The rover will incorporate a drill that is capable of extra
Externí odkaz:
http://hdl.handle.net/10454/10462
An opportunity was afforded to analyse pigment specimens from an unrestored oil painting in the style of the English School of the mid-18th Century prior to conservation being undertaken. Raman spectroscopy was adopted to characterise the pigments an
Externí odkaz:
http://hdl.handle.net/10454/10447
The remote robotic exploration of extraterrestrial scenarios for evidence of biological colonization in 'search for life' missions using Raman spectroscopy is critically dependent on two major factors: firstly, the Raman spectral recognition of chara
Externí odkaz:
http://hdl.handle.net/10454/10446
Autor:
Culka, A., Osterrothova, K., Hutchinson, I.B., Ingley, R., McHugh, M., Oren, A., Edwards, Howell G.M., Jehlička, J.
A prototype instrument, under development at the University of Leicester, for the future European Space Agency (ESA) ExoMars mission, was used for the analysis of microbial pigments within a stratified gypsum crust from a hypersaline saltern evaporat
Externí odkaz:
http://hdl.handle.net/10454/10436
This study is primarily focused on proving the potential of miniaturized Raman systems to detect any biomolecular and mineral signal in natural geobiological samples that are relevant for future application of the technique within astrobiologically a
Externí odkaz:
http://hdl.handle.net/10454/10550
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