Filtros de búsqueda

Lista de obras de Richard J. Robins

1H-NMR-based metabolic profiling of maternal and umbilical cord blood indicates altered materno-foetal nutrient exchange in preterm infants

artículo científico publicado en 2012

A 13C NMR spectrometric method for the determination of intramolecular δ13C values in fructose from plant sucrose samples

artículo científico publicado el 9 de marzo de 2011

A Ring-D-Seco-Tetranortriterpenoid from Seeds of Carapa procera Active against Breast Cancer Cell Lines

artículo científico publicado en 2016

A retro-biosynthetic approach to the prediction of biosynthetic pathways from position-specific isotope analysis as shown for tramadol

artículo científico publicado en 2015

A spectrophotometric assay for strictosidine synthase

artículo científico publicado en 1987

Abiotic factors elicit sesquiterpenoid phytoalexin production but not alkaloid production in transformed root cultures of Datura stramonium

artículo científico publicado en 1991

Accurate quantitative 13C NMR spectroscopy: repeatability over time of site-specific 13C isotope ratio determination.

artículo científico publicado en 2007

Accurate quantitative isotopic 13C NMR spectroscopy for the determination of the intramolecular distribution of 13C in glucose at natural abundance

artículo científico publicado en 2009

Alkaloid production by transformed root cultures of Catharanthus roseus

scientific article published on 01 August 1988

Altered nitrogen metabolism associated with de-differentiated suspension cultures derived from root cultures of Datura stramonium studied by heteronuclear multiple bond coherence (HMBC) NMR spectroscopy

artículo científico publicado en 2004

An enzyme-linked immunosorbent assay for quassin and closely related metabolites

artículo científico publicado en 1984

Analytical model for site-specific isotope fractionation in 13C during sorption: Determination by isotopic 13C NMR spectrometry with vanillin as model compound

artículo científico publicado en 2012

Apparent free space and cell volume estimation: A non-destructive method for assessing the growth and membrane integrity/viability of immobilised plant cells

scientific article published on 01 August 1984

Appreciation--Professor Godfrey Paul Bolwell MA DSc: 13 December 1946-13 April 2012.

artículo científico publicado en 2015

Assignment of absolute configuration of natural abundance deuterium signals associated with (R)- and (S)-enantioisotopomers in a fatty acid aligned in a chiral liquid crystal: enantioselective synthesis and NMR analysis

artículo científico publicado en 2006

Biochemical and physiological determinants of intramolecular isotope patterns in sucrose from C₃, C₄ and CAM plants accessed by isotopic ¹³C NMR spectrometry: a viewpoint

artículo científico publicado en 2012

Biomimetic synthesis of Tramadol

artículo científico publicado en 2015

Characterization of nitrogen relationships between Sorghum bicolor and the root-hemiparasitic angiosperm Striga hermonthica (Del.) Benth. using K15 NO3 as isotopic tracer.

artículo científico publicado en 2003

Co-fermentation of glucose and citrate by Lactococcus lactis diacetylactis: quantification of the relative metabolic rates by isotopic analysis at natural abundance

artículo científico publicado en 2003

Conditions to obtain precise and true measurements of the intramolecular 13C distribution in organic molecules by isotopic 13C nuclear magnetic resonance spectrometry.

artículo científico publicado en 2014

Considerations of the estimation of plasmodesmatal frequencies

scientific article published on 01 April 1980

Cord blood glutathione depletion in preterm infants: correlation with maternal cysteine depletion

artículo científico publicado en 2011

Correction to Exploration of Biological Markers of Feed Efficiency in Young Bulls

artículo científico publicado en 2018

Correlation between the synthetic origin of methamphetamine samples and their 15N and 13C stable isotope ratios

artículo científico publicado en 2007

Cytochrome P450-Catalyzed Degradation of Nicotine: Fundamental Parameters Determining Hydroxylation by Cytochrome P450 2A6 at the 5′-Carbon or the N-Methyl Carbon

artículo científico publicado en 2012

Des cheveux pour évaluer le métabolisme protéique chez l’homme

artículo científico publicado en 2013

Determination of 13C isotopic enrichment of glutathione and glycine by gas chromatography/combustion/isotope ratio mass spectrometry after formation of the N- or N,S-ethoxycarbonyl methyl ester derivatives

scientific article published on 01 January 2007

Determination of deuterium isotope ratios by quantitative 2H NMR spectroscopy: the ERETIC method as a generic reference signal

artículo científico publicado en 2002

Determination of nitrogen-15 isotope fractionation in tropine: evaluation of extraction protocols for isotope ratio measurement by isotope ratio mass spectrometry

artículo científico publicado en 2009

Determination of substrate and product concentrations in lactic acid bacterial fermentations by proton NMR using the ERETIC method

artículo científico publicado en 2001

Determination of the concentration of nitrogenous bio-organic compounds using an isotope ratio mass spectrometer operating in continuous flow mode

artículo científico publicado el 7 de julio de 2011

Determination of the natural abundance delta15N of nicotine and related alkaloids by gas chromatography/isotope ratio mass spectrometry

artículo científico publicado en 2005

Determination of the natural abundance delta15N of nortropane alkaloids by gas chromatography-isotope ratio mass spectrometry of their ethylcarbamate esters

artículo científico publicado en 2009

Determination of the natural abundance δ15N of taurine by gas chromatography-isotope ratio measurement mass spectrometry

artículo científico publicado en 2010

Deuterium NMR used to indicate a common mechanism for the biosynthesis of ricinoleic acid by Ricinus communis and Claviceps purpurea

artículo científico publicado en 2004

Efficient enantiomeric synthesis of pyrrolidine and piperidine alkaloids from tobacco.

artículo científico publicado en 2001

Elucidation of the mechanism of N-demethylation catalyzed by cytochrome P450 monooxygenase is facilitated by exploiting nitrogen-15 heavy isotope effects

artículo científico publicado en 2011

Enhanced forensic discrimination of pollutants by position-specific isotope analysis using isotope ratio monitoring by 13C nuclear magnetic resonance spectrometry

artículo científico publicado en 2016

Enzymes of N-methylputrescine biosynthesis in relation to hyoscyamine formation in transformed root cultures of Datura stramonium and Atropa belladonna

artículo científico publicado en 1990

Esterification reactions in the biosynthesis of tropane alkaloids in transformed root cultures

article

Evaluation of solid-phase microextraction for the isotopic analysis of volatile compounds produced during fermentation by lactic acid bacteria

artículo científico publicado en 2000

Evidence for the involvement of tetrahydrofolate in the demethylation of nicotine by Nicotiana plumbaginifolia cell-suspension cultures.

artículo científico publicado en 2002

Evidence of 13C non-covalent isotope effects obtained by quantitative 13C nuclear magnetic resonance spectroscopy at natural abundance during normal phase liquid chromatography.

artículo científico publicado en 2009

Expanded uncertainty associated with determination of isotope enrichment factors: Comparison of two point calculation and Rayleigh-plot

artículo científico publicado en 2017

Exploration of Biological Markers of Feed Efficiency in Young Bulls.

artículo científico publicado en 2017

Factors regulating tropane-alkaloid production in a transformed root culture of a Datura candida × D. aurea hybrid

artículo científico publicado en 1990

Fractionation in position-specific isotope composition during vaporization of environmental pollutants measured with isotope ratio monitoring by ¹³C nuclear magnetic resonance spectrometry.

artículo científico publicado en 2015

Higher Leptin but Not Human Milk Macronutrient Concentration Distinguishes Normal-Weight from Obese Mothers at 1-Month Postpartum

artículo científico publicado en 2016

Human baby hair amino acid natural abundance 15N-isotope values are not related to the 15N-isotope values of amino acids in mother’s breast milk protein

artículo científico publicado en 2013

Impact of nitrate supply in C and N assimilation in the parasitic plant Striga hermonthica (Del.) Benth (Scrophulariaceae) and its host Sorghum bicolor L.

artículo científico publicado en 2006

Impact of the deuterium isotope effect on the accuracy of 13C NMR measurements of site-specific isotope ratios at natural abundance in glucose.

artículo científico publicado en 2010

Insights into Mechanistic Models for Evaporation of Organic Liquids in the Environment Obtained by Position-Specific Carbon Isotope Analysis

artículo científico publicado en 2015

Internal Referencing for ¹³C Position-Specific Isotope Analysis Measured by NMR Spectrometry

artículo científico publicado en 2015

Intracellular distribution of phosphate in cultured Humulus lupulus cells growing at elevated exogenous phosphate concentrations

scientific article published on 01 December 1984

Intramolecular 13C pattern in hexoses from autotrophic and heterotrophic C3 plant tissues

artículo científico publicado en 2012

Investigation of fatty acid elongation and desaturation steps in Fusarium lateritium by quantitative two-dimensional deuterium NMR spectroscopy in chiral oriented media

artículo científico publicado en 2009

Investigation of the mechanism of nicotine demethylation in Nicotiana through 2H and 15N heavy isotope effects: Implication of cytochrome P450 oxidase and hydroxyl ion transfer

artículo científico publicado en 2007

Isotope Ratio Monitoring 13C Nuclear Magnetic Resonance Spectrometry for the Analysis of Position-Specific Isotope Ratios

artículo científico publicado en 2017

Isotopic 13C NMR spectrometry to assess counterfeiting of active pharmaceutical ingredients: site-specific 13C content of aspirin and paracetamol

artículo científico publicado en 2009

Lactate is mainly fermented to butyrate by human intestinal microfloras but inter-individual variation is evident

artículo científico publicado en 2005

Levels of tropinone-reductase activities influence the spectrum of tropane esters found in transformed root cultures of Datura stramonium L

scientific article published on 01 November 1992

Multi-factorial in vivo stable isotope fractionation: causes, correlations, consequences and applications

artículo científico

NMR approach to the quantification of nonstatistical 13C distribution in natural products: vanillin

artículo científico publicado en 2004

Natural (15)N Abundance in Key Amino Acids from Lamb Muscle: Exploring a New Horizon in Diet Authentication and Assessment of Feed Efficiency in Ruminants.

artículo científico publicado en 2016

Natural abundance hydrogen isotope affiliation between the reactants and the products in glucose fermentation with yeast

artículo científico publicado en 2003

Natural-abundance isotope ratio mass spectrometry as a means of evaluating carbon redistribution during glucose-citrate cofermentation by Lactococcus lactis

artículo científico publicado en 2004

Nauclea latifolia: biological activity and alkaloid phytochemistry of a West African tree

artículo científico publicado en 2016

Nicotine demethylation in Nicotiana cell suspension cultures: N'-formylnornicotine is not involved

artículo científico publicado en 2005

Non-equivalence of hydrogen transfer from glucose to the pro-R and pro-S methylene positions of ethanol during fermentation by Leuconostoc mesenteroides quantified by 2H NMR at natural abundance

artículo científico publicado en 2008

Non-statistical 13C Fractionation Distinguishes Co-incident and Divergent Steps in the Biosynthesis of the Alkaloids Nicotine and Tropine

artículo científico publicado en 2016

Nonstatistical 13C distribution during carbon transfer from glucose to ethanol during fermentation is determined by the catabolic pathway exploited

artículo científico publicado en 2014

Occurrence of the Synthetic Analgesic Tramadol in an African Medicinal Plant

artículo científico publicado en 2013

Occurrence of the synthetic analgesic tramadol in an African medicinal plant

artículo científico publicado en 2013

Over-expressing a yeast ornithine decarboxylase gene in transgenic roots of Nicotiana rustica can lead to enhanced nicotine accumulation

artículo científico publicado en 1990

Permeabilization of Cinchona ledgeriana cells by dimethylsulphoxide. effects on alkaloid release and long-term membrane integrity

scientific article published on 01 December 1984

Phytochemicals isolated from leaves of Chromolaena odorata: impact on viability and clonogenicity of cancer cell lines.

artículo científico publicado en 2012

Position-Specific 13C Fractionation during Liquid-Vapor Transition Correlated to the Strength of Intermolecular Interaction in the Liquid Phase.

artículo científico publicado en 2017

Position-Specific Isotope Analysis of Xanthines: A (13)C Nuclear Magnetic Resonance Method to Determine the (13)C Intramolecular Composition at Natural Abundance.

artículo científico publicado en 2015

Potential for use of nicotinic acid as a selective agent for isolation of high nicotine-producing lines of Nicotiana rustica hairy root cultures.

artículo científico publicado en 1987

Predicting equilibrium vapour pressure isotope effects by using artificial neural networks or multi-linear regression - A quantitative structure property relationship approach.

artículo científico publicado en 2015

Probing stereoselectivity and pro-chirality of hydride transfer during short-chain alcohol dehydrogenase activity: a combined quantitative 2H NMR and computational approach

artículo científico publicado en 2008

Probing substrate–product relationships by natural abundance deuterium 2D NMR spectroscopy in liquid-crystalline solvents: epoxidation of linoleate to vernoleate by two different plant enzymes

artículo científico publicado en 2012

Quantitative 2H NMR analysis of deuterium distribution in petroselinic acid isolated from parsley seed

artículo científico publicado en 2003

Quantitative 2H NMR at natural abundance can distinguish the pathway used for glucose fermentation by lactic acid bacteria.

artículo científico publicado en 2004

Quantitative deuterium isotopic profiling at natural abundance indicates mechanistic differences for delta 12-epoxidase and delta 12-desaturase in Vernonia galamensis

artículo científico publicado en 2005

Quantitative isotopic 13C nuclear magnetic resonance at natural abundance to probe enzyme reaction mechanisms via site-specific isotope fractionation: the case of the chain-shortening reaction for the bioconversion of ferulic acid to vanillin

artículo científico publicado en 2009

Rate of carbon dioxide production and energy expenditure in fed and food-deprived adult dogs determined by indirect calorimetry and isotopic methods

artículo científico publicado en 2002

Secondary product formation by cultures of Beta vulgaris and Nicotiana rustica transformed with Agrobacterium rhizogenes

scientific article published on 01 April 1986

Simulating Stable Isotope Ratios in Plumes of Groundwater Pollutants with BIOSCREEN-AT-ISO

artículo científico publicado en 2016

Simultaneous determination of glutathione and cysteine concentrations and 2H enrichments in microvolumes of neonatal blood using gas chromatography-mass spectrometry

artículo científico publicado en 2007

Simultaneous determination of natural-abundance δ15N values and quantities of individual amino acids in proteins from milk of lactating women and from infant hair using gas chromatography/isotope ratio mass spectrometry.

artículo científico publicado en 2013

Some features of secretory systems in plants.

artículo científico publicado en 1977

Stereoselectivity of the demethylation of nicotine piperidine homologues by Nicotiana plumbaginifolia cell suspension cultures

artículo científico publicado en 2005

Stimulation of glutathione degradation by amino acids: lack of stereospecificity

artículo científico publicado en 1985

Studies on the biosynthesis of tropane alkaloids by Datura stramonium L. transformed root cultures : 3. The relationship between morphological integrity and alkaloid biosynthesis

scientific article published on 01 October 1991

Studies on the biosynthesis of tropane alkaloids in Datura stramonium L. transformed root cultures : 1. The kinetics of alkaloid production and the influence of feeding intermediate metabolites

scientific article published on 01 January 1991

Studies on the biosynthesis of tropane alkaloids in Datura stramonium L. transformed root cultures : 2. On the relative contributions of L-arginine and L-ornithine to the formation of the tropane ring.

artículo científico publicado en 1991

The Carnivorous Plants

book published in 1989

The effects of immobilization on the biochemical, physiological and morphological features of Anabaena azollae

artículo científico publicado en 1987

The formation of 3 alpha- and 3 beta-acetoxytropanes by Datura stramonium transformed root cultures involves two acetyl-CoA-dependent acyltransferases.

artículo científico publicado en 1991

The intramolecular ¹³C-distribution in ethanol reveals the influence of the CO₂ -fixation pathway and environmental conditions on the site-specific ¹³C variation in glucose

artículo científico publicado en 2011

The nature of the stimuli causing digestive juice secretion in Dionaea muscipula Ellis (venus's flytrap).

artículo científico publicado en 1976

The nicotinic pharmacophore: thermodynamics of the hydrogen-bonding complexation of nicotine, nornicotine, and models.

artículo científico publicado en 2003

The prediction of isotopic patterns in phenylpropanoids from their precursors and the mechanism of the NIH-shift: basis of the isotopic characteristics of natural aromatic compounds

artículo científico publicado en 2006

The role of glutathione in amino acid absorption by yeast

scientific article published on 01 March 1980

Toxicity of quinoline alkaloids to cultured Cinchona ledgeriana cells

scientific article published on 01 April 1987

Unexpected fractionation in site-specific 13C isotopic distribution detected by quantitative 13C NMR at natural abundance

artículo científico publicado en 2007

δ15N and δ13C in hair from newborn infants and their mothers: a cohort study

artículo científico publicado en 2012