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- Publications
- Influence
Free and sol-gel immobilized alkaline phosphatase-based biosensor for the determination of pesticides and inorganic compounds
- F. Sánchez, A. Díaz, M. C. R. Peinado, C. Belledone
- Chemistry
- 7 May 2003
Alkaline-phosphatase (ALP) catalyses the hydrolysis of 1-naphthyl phosphate to fluorescent 1-naphthol ( λex = 346 nm, λem = 463 nm). This enzymatic reaction was investigated in presence of… Expand
A common genetic mechanism underlies morphological diversity in fruits and other plant organs
- Shan Wu, Biyao Zhang, +18 authors Esther van der Knaap
- Biology, Medicine
- Nature Communications
- 9 November 2018
Shapes of edible plant organs vary dramatically among and within crop plants. To explain and ultimately employ this variation towards crop improvement, we determined the genetic, molecular and… Expand
Copy Number Variation Affecting the Photoperiod-B 1 and Vernalization-A 1 Genes Is Associated with Altered Flowering Time in Wheat ( Triticum aestivum )
The timing of flowering during the year is an important adaptive character affecting reproductive success in plants and is critical to crop yield. Flowering time has been extensively manipulated in… Expand
Sol-gel cholinesterase biosensor for organophosphorus pesticide fluorimetric analysis
- A. Díaz, M. C. R. Peinado
- Chemistry
- 1 March 1997
Abstract Sol-gel crystals derived from tetramethyl orthosilicate (TMOS) doped with cholinesterase using microencapsulation have been prepared. Organophosphorus pesticides (ORPs) are determined by… Expand
Cloning and correct expression in E. coli of the petJ gene encoding cytochrome c
6 from Synechocystis 6803
- A. Díaz, F. Navarro, +4 authors M. A. De la Rosa
- Biology, Medicine
- FEBS letters
- 27 June 1994
Cytochrome c 6 from the cyanobacterium Synechocystis 6803 has been isolated and purified to electrophoretic homogeneity. The gene coding for such a heme protein (petJ) has been cloned and properly… Expand
Phenol derivatives as enhancers and inhibitors of luminol–H2O2–horseradish peroxidase chemiluminescence
- A. Díaz, F. Sánchez, J. García
- Chemistry
- 1 March 1998
Systematic studies on phenol derivatives facilitates an explanation of the enhancement or inhibition of the luminol‐H2O2‐horseradish peroxidase system chemiluminescence. Factors that govern the… Expand
P-phenol derivatives as enhancers of the chemiluminescent luminol-horseradish peroxidase-H2O2 reaction: substituent effects
- F. Sánchez, A. Díaz, J. García
- Chemistry
- 1 June 1995
Abstract We studied the substituent effects of ten p-phenol derivatives and aniline on the chemiluminescence from the luminol-horseradish peroxidase-H2O2 system. The enhancer effects of some… Expand
Horseradish peroxidase sol-gel immobilized for chemiluminescence measurements of alkaline-phosphatase activity
- A. Díaz, F. Sánchez, J. Ramos, M. C. Torijas
- Chemistry
- 28 February 2002
Naphthyl phosphate is a pro-enhancer of the luminol-H2O2-horseradish peroxidase reaction. Alkaline-phosphatase hydrolyses the phosphate group and produces 2-naphthol. This compound is an enhancer of… Expand
Thin-layer chromatography and fibre-optic fluorimetric quantitation of thiamine, riboflavin and niacin
- A. Díaz, A. Paniagua, F. Sánchez
- Chemistry
- 26 November 1993
Thiamine (vitamin B,), riboflavin (vitamin B,) and niacin (nicotinic acid) were separated by thin-layer chromatography and fluorimetrically determined by using a commercially available… Expand
Polarimetric Detection in Liquid Chromatography: An Approach to Correct Refractive Index Artefacts
- F. Sánchez, A. Díaz, I. M. Lama
- Chemistry
- 22 October 2008
Abstract The study of factors influencing the quality of polarimetric signals from chromatographic analysis of mixtures of enantiomers shows that changes in refraction index of mobile phase, analyte… Expand