A5090520526- Isotope Analysis in Ecology
- Geology and Paleoclimatology Research
- Marine and coastal ecosystems
- Groundwater and Isotope Geochemistry
- Archaeology and ancient environmental studies
- Pleistocene-Era Hominins and Archaeology
- Methane Hydrates and Related Phenomena
- Environmental DNA in Biodiversity Studies
- Bone fractures and treatments
- Pacific and Southeast Asian Studies
- Hydrocarbon exploration and reservoir analysis
- Radioactive contamination and transfer
- Identification and Quantification in Food
- Ultrasound and Hyperthermia Applications
- Nuclear Physics and Applications
- Microbial Community Ecology and Physiology
- Transport Systems and Technology
- Atmospheric and Environmental Gas Dynamics
- Marine Biology and Ecology Research
- Radioactivity and Radon Measurements
- Spectroscopy and Chemometric Analyses
- Bone health and osteoporosis research
- Heavy metals in environment
- Chemical Reactions and Isotopes
- Geochemistry and Geologic Mapping
Liverpool John Moores University
2023
University of Hong Kong
2011-2023
Thermo Fisher Scientific (Germany)
2018-2022
Thermo Fisher Scientific (Canada)
2020
BioVentures (United States)
2014-2015
Chinese University of Hong Kong
2014
Durham University
2009-2011
Established fracture nonunions rarely heal without secondary intervention. Revision surgery is the most common intervention, though non-surgical options for nonunion would be useful if they could overcome risk factors. Our hypothesis that low-intensity pulsed ultrasound (LIPUS) can enhance rate (HR) in fractures remain after one year, relative to expected HR absence of treatment, which negligible.We collated outcomes from a prospective patient registry required by U.S. Food & Drug...
The use of multi-isotopic analysis (δ15 N, δ13 C and δ34 S values) archaeological bone collagen to assist in the interpretation diet, movement mobility prehistoric populations is gradually increasing, yet many researchers have traditionally avoided investigating sulphur due its very low concentrations (<0.3%) mammalian collagen. For this reason, as a consequence analytical detection limits, usually measured separately from carbon nitrogen, which leads longer times higher costs.A Thermo...
We investigate the effect of acid treatment methods on δ(15)N values from a range environmental organic materials in context increased application 'dual-mode' isotope analysis (the simultaneous measurement δ(13)C and same acid-treated sample). Three common are compared; (i) untreated samples; (ii) acidification followed by sequential water rinse (rinse method); (iii) silver capsules (capsule method). The influence capsule type (silver tin) is also independently assessed (as combust samples...
Abstract Marine biodiversity stewardship requires costly and time‐consuming capture‐based monitoring techniques, which limit our understanding of the distribution status marine populations. Here, we reconstruct catch demersal community composition in a set 24 fishing sites central Tyrrhenian Sea by gathering environmental DNA (eDNA) aboard commercial bottom‐trawl vessels. We collected genetic material from two sources: water draining net after end hauling operations (“slush”), custom‐made...
Elemental abundances and isotopic ratios of carbon, nitrogen, sulfur hydrogen have become important tools for reconstructing the evolution Earth life over geologic timescales, requiring accurate precise analytical methods with high sample throughput. However, these measurements may require separate instruments each task, such as an elemental analyzer (EA) a thermal conductivity detector (TCD) EA interfaced mass spectrometer ratios.To improve throughput laboratory up-time, we developed switch...
Background: Coffee is one of the most popular beverages worldwide, sourced from different geographical regions. To ensure that coffee beans come labelled locations, laboratories need an analytical solution can discriminate origin. have a fingerprint, unique chemical signature allows them to be identified: Isotope fingerprints carbon, nitrogen, sulfur, hydrogen, and oxygen been reliably used for origin claim verification. Objective: Show hydrogen isotope green roasted determine beans....
We report modifications to a commercial elemental analyzer-isotope ratio mass spectrometer that permit high-precision isotopic analysis of nanomoles carbon (C), nitrogen (N), and sulfur (S) on single sample without chemical or cryogenic trapping gases. The size required for measurement by our system is about two orders magnitude less than conventional analyses.Our builds the analytical advancements offered EA IsoLink IRMS System employs simple reduce diameter flow path (reactors, water trap,...
Acid treatment of organic materials, necessary to remove inorganic carbon prior isotopic analysis, adds an unpredictable and non-linear bias measured C/N, δ 13 C 15 N values questioning their reliability interpretation.C/N, as paleoenvironmental proxiesThe analysis matter (OM) from
This study reports the development of an all-in-one elemental analyser isotope ratio mass spectrometry (EA-IRMS) system modified for simultaneous analysis dissolved organic carbon (DOC) concentration and its stable footprint (δ13CDOC) in aqueous samples. The method involves a quantitative oxidation DOC 200 µL liquid sample to CO2, after acidification stripping by nitrogen. detection limit quantification was 0.2 mg C/L with analytical precision 12 %. Uncertainty determinations 2 % at DOC/L,...
Low-intensity pulsed ultrasound (LIPUS) is used clinically to enhance fracture healing. Level-I clinical studies demonstrate that a specific signal (1.5 MHz at 1 kHz, 20% duty cycle, 30 mW/cm2 SATA) can accelerate the healing of acute fractures. This result remains unique benefit LIPUS, and date, no other drug or device has been approved by FDA for accelerated repair. The same shown in many heal high proportion non-union LIPUS appears be effective all three types non-unions—atrophic,...
Development of Isotopic Proxies for Palaeoenvironmental Interpretation:A Carbon Perspective Workshop;Durham, UK, 8–10 May 2012 Constraining the carbon (C) cycle is important to understanding environmental processes at a range spatial and temporal scales requires an integrative interdisciplinary complex often nonlinear mechanisms that control behavior C isotopes in environment. Although there knowledge exchange among researchers, interaction with literature outside given researcher's field...