Results 281 to 290 of about 276,573 (338)

Identification of the Novel Synthetic Opioid N‐Pyrrolidino Isotonitazene at an Australian Drug Checking Service

open access: yesDrug Testing and Analysis, EarlyView.
Close collaboration between an Australian drug checking service and an affiliated university laboratory identifies and characterises the novel synthetic opioid N‐pyrrolidino isotonitazene in an expected oxycodone sample presented by a member of the public.
Blake Curtis   +3 more
wiley   +1 more source

Toward a Cannabis Terroir: Untargeted Metabolomic Profiling of Authentic Samples Using Gas Chromatography–High‐Resolution Mass Spectrometry (GC‐HRMS) and Liquid Chromatography–High‐Resolution Tandem Mass Spectrometry (LC‐HRMS/MS)

open access: yesDrug Testing and Analysis, EarlyView.
This study developed a comprehensive metabolomics workflow using GC‐HRMS and LC‐HRMS/MS and analyzed 35 CBD‐type cannabis flowers grown under varying conditions. Key discriminative compounds enabled classification by chemical phenotype and cultivation environment. The results showed that environmental factors influence chemical profiles, supporting the
Sandra N. Poetzsch   +3 more
wiley   +1 more source

Metabolic changes during cardiac regeneration in the axolotl

open access: yesDevelopmental Dynamics, EarlyView.
Abstract Background The axolotl is a prominent model organism of heart regeneration due to its ability to anatomically and functionally repair the heart after an injury that mimics human myocardial infarction. In humans, such an injury leads to permanent scarring. Cardiac regeneration has been linked to metabolism and the oxygenation state, but so far,
Anita Dittrich   +10 more
wiley   +1 more source

Facilitating the Isolation of Polar Natural Products: Mild 1,1’‐Carbonyldiimidazole‐Enabled Method for Derivatization of Acids and Alcohols

open access: yesEuropean Journal of Organic Chemistry, Accepted Article.
Many secondary metabolites containing carboxylic acid and alcohol functional groups are highly polar and can be difficult to purify and isolate from complex extracts obtained from natural sources. The conversion of these natural products to their corresponding alkyl esters/ carbonates under mild conditions can simplify their purification and isolation.
Moses M. Mutungi   +3 more
wiley   +1 more source

Contactless Conductivity Detection for Capillary Electrophoresis—Developments From 2020 to 2024

open access: yesELECTROPHORESIS, EarlyView.
ABSTRACT The review covering the development of capillary electrophoresis with capacitively coupled contactless conductivity detection from 2020 to 2024 is the latest in a series going back to 2004. The article considers applications employing conventional capillaries and planar lab‐on‐chip devices as well as fundamental and technical developments of ...
Peter C. Hauser, Pavel Kubáň
wiley   +1 more source

From One Strand Dyed/Undyed Hair With/Without Root to Fast and Successful STR Profiling and Evaluation With Principle Component Analysis

open access: yesELECTROPHORESIS, EarlyView.
ABSTRACT Fallen/shed single hair shafts with/without roots can be encountered as evidence in crime scenes. Identification from hair exhibits serious difficulties, due to the low amount of DNA, PCR inhibitors, and the existence of DNA mostly in degraded forms. Exposure of hair to chemical oxidation, sunlight, etc.
Gulten Rayimoglu   +2 more
wiley   +1 more source

A fire safety engineering approach to improving community resilience to the impacts of wildfire

open access: yesFire and Materials, EarlyView.
Abstract Each year severe wildfires continue to cause significant destruction resulting in the loss of life, property, critical infrastructure, and the environment. In an effort to increase community preparedness and resilience to wildfire, international jurisdictions have adopted both guiding principles and prescriptive codes that apply to both urban ...
Greg Penney   +3 more
wiley   +1 more source

The emission of pollutants from ornamental shrubs during forest fires

open access: yesFire and Materials, EarlyView.
Abstract This study investigates the combustion behavior, emissions, and aerosol production of four plant species: Laurus nobilis, Cistus monspeliensis, Photinia fraseri, and Cupressus sempervirens. The Heat Release Rate (HRR) and Smoke Production Rate (SPR) were measured, revealing that Cupressus sempervirens had the highest HRR and longest flame ...
Bruno Martinent   +5 more
wiley   +1 more source

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