scispace - formally typeset
M

María Sandra Churio

Researcher at National University of Mar del Plata

Publications -  45
Citations -  899

María Sandra Churio is an academic researcher from National University of Mar del Plata. The author has contributed to research in topics: Aqueous solution & Quantum yield. The author has an hindex of 15, co-authored 38 publications receiving 760 citations. Previous affiliations of María Sandra Churio include Max Planck Society & Facultad de Ciencias Exactas y Naturales.

Papers
More filters
Journal ArticleDOI

The photoprotector mechanism of mycosporine-like amino acids. Excited-state properties and photostability of porphyra-334 in aqueous solution.

F.R Conde, +2 more
- 01 Jul 2000 - 
TL;DR: The photostability and photophysical parameters of an aqueous solution of the mycosporine-like amino acid (MAA) porphyra-334 have been determined and the photoprotective role assigned to this MAA in living systems is supported.
Journal ArticleDOI

Combination of laser-induced optoacoustic spectroscopy (LIOAS) and semiempirical calculations for the determination of molecular volume changes : the photoisomerization of carbocyanines

María Sandra Churio, +2 more
- 01 Feb 1994 - 
TL;DR: In this paper, the volume change for the E-Z photoisomerization reaction of the 3,3'-diethyloxadicarbocyanine iodide (DODCI) at 562 nm, and the 3-3-diethloxacarbocynine iodides (DOCI) at 460 nm were determined in ethanol-water mixtures.
Journal ArticleDOI

Experimental study of the excited-state properties and photostability of the mycosporine-like amino acid palythine in aqueous solution

Federico Rubén Conde, +4 more
- 05 Jun 2007 - 
TL;DR: A comparison of the photodegradation quantum yields and photophysical properties of palythine with those previously determined for the other mycosporine-like amino acids, shinorine and porphyra-334, suggests that geometrical isomerization around the C=N bond may contribute to the rapid deactivation of this group of molecules.
Journal ArticleDOI

Photochemical energy storage and volume changes in the microsecond time range in bacterial photosynthesis — a laser induced optoacoustic study

Schmuel Malkin, +3 more
- 01 Apr 1994 - 
TL;DR: In this article, the authors used laser-induced optoacoustic spectroscopy between 4 and 25 °C to study Rhodobacter sphaeroides reaction centers and derived the heat released within ca. 1 μs of the laser pulse and the concomitant volume changes occurring upon molecular movements.
Journal ArticleDOI

Bacterioruberin extracts from a genetically modified hyperpigmented Haloferax volcanii strain: antioxidant activity and bioactive properties on sperm cells

Lucia Zalazar, +9 more
- 01 Mar 2019 - 
TL;DR: To examine the antioxidant activity of Bacterioruberin (Bctr)‐rich extracts isolated from a hyperpigmented, genetically modified Haloferax volcanii strain (HVLON3) and to investigate the effect on cold‐sensitive ram sperm cells.