biological sample Articles
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Trace metal status in marine biological samples: a review
The literature on trace metal status in marine biological samples is reviewed, taking into account the importance of the subject. Marine organisms accumulate trace metals to body concentrations well above those in seawater. Different marine organisms differ significantly in accumulated tissue and total body concentrations of heavy metals. The present literature survey indicates that more than 26 ...
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Fabrication of uniform substrate based on silver nanoparticles decorated glycidyl methacrylate-ethylene dimethacrylate porous material for ultrasensitive surface-enhanced Raman scattering detection
Surface-enhanced Raman scattering (SERS) in practical application and theoretical research mostly depends on the performance of the SERS substrate. In this study, a new SERS substrate which is based on inverted self-assembly of Ag nanoparticles (AgNPs) on glycidyl methacrylate-ethylene dimethacrylate (GMA-EDMA) porous material is developed. The characterization results show the GMA-EDMA material ...
By B&W Tek
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Energy Efficient Biological Sample Storage
Why do we need Biological Sample Storage?Biological sample storage is essential for several industries including pharmaceuticals, healthcare, research and forensics. Correct sample storage ensures the viability of samples by slowing or stopping degradation of biological materials so that they can be used or investigated for some time after collection, without compromising the sample ...
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LabrePor Web-based Laboratory Sample Tracking
Introduction INCOGEN, Inc. is a global leader in providing customized informatics solutions for corporations, institutions and laboratories of all types and sizes. INCOGEN’s latest software system, LabrePort™, is a web-based sample tracking system which supports biosafety and other laboratories in biological sample inventory management. Based on INCOGEN’s GenePort® software, ...
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Development of an enzyme‐linked immunosorbent assay and a beta‐1 adrenergic receptor–based assay for monitoring the drug atenolol
Two approaches for monitoring atenolol (ATL) were applied: an immunochemical assay and a competitive‐binding assay, based on the interaction between ATL and its target receptor, β1 adrenergic receptor (β1AR). Polyclonal antibodies (Abs) for ATL were generated, and a highly specific microplate immunochemical assay, i.e., an enzyme‐linked immunosorbent assay (ELISA), for its detection was ...
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Detection of metal ions in the body using hydrogen gas
In light of recent reports in The Guardian newspaper regarding a two-fold increase in issues relating to medical devices since 2008, we wanted to highlight a study conducted by Peak Scientific and Analytik Jena into the detection of metal ions in different matrices into the body following joint replacement surgeries. The Implant Files' investigation findings published by The Guardian newspaper ...
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Determination of hemoglobin adduct of a musk xylene metabolite in trout as biomarker of exposure by gas chromatography mass spectrometry
Musk xylene (MX) is frequently used as fragrances in formulation of personal care products. Quantification of a bound 4-amino-MX(4-AMX) as cysteine adducts in trout hemoglobin (Hb) was made by gas chromatography-ion trap-mass spectrometry (GC/MS). The Hb samples were collected from trout after 24 h exposure to MX at 10µg/g, and or menhaden oil (control). The formation of cysteine-Hb adduct was ...
By IOS Press
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Radionuclide content of human samples in the Ramsar area of Iran
As part of a survey to determine public exposure to natural radiation and to estimate radionuclide levels in the diet and human tissues, the radionuclide content of different biological samples of residents in Ramsar, a high level background radiation area (HLBRA) in Iran, has been measured. The main route of 210Po and 210Pb intake in the human body is ingestion via foodstuffs. The absorption of ...
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What is High-Throughput RNA-Sequencing?
High-throughput RNA-sequencing (RNA-seq) is the use of next generation sequencing technology to explore the transcriptome of a genome. It allows researchers to characterize and compare gene expression profiles of biological samples. RNA-seq is now one of the most common tools in molecular biology. In this article, we discover the RNA-seq technique, how it works, and how new RNA-seq ...
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Map of the Month – Convallaria
Welcome to Edinburgh Instruments monthly blog celebrating our work in Raman, Photoluminescence, and Fluorescence Lifetime Imaging. Every month we will highlight our pick for Map of the Month to show how our spectrometers can be used to reveal all the hidden secrets in your samples.SeptemberThe development of fluorescence microscopy in the early 20th century sparked a new era for the field of ...
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ODIN: Realising the power of Deep UV Raman spectroscopy to characterise equine synovial fluids
ODIN: Realising the power of Deep UV Raman spectroscopy to characterise equine synovial fluids Measuring the molecular and chemical composition of biological samples has remained challenging yet advances in medical treatments rely largely on the ability to detect and identify molecular signatures of disease, as well as developing therapeutics to target specific illnesses within individuals. ...
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Kinetic determination of vitellogenin induction in the epidermis of cyprinid and perciform fishes: Evaluation of sensitive enzyme‐linked immunosorbent assays (ELISAs)
Induction of vitellogenin (VTG) in male and immature fish is a standardized endpoint in endocrine disruption testing. In order to establish a nondestructive swab sampling method, VTG induction in the epidermis of Cypriniformes and Perciformes species has been investigated. Both vitellogenin and estrogen receptor genes are expressed in epidermal cells. Immunoaffinity and mass fingerprint ...
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Map of the Month – Imaging Mouse Intestine
Welcome to Edinburgh Instruments monthly blog celebrating our work in Raman, Photoluminescence, and Fluorescence Lifetime Imaging. Every month we will highlight our pick for Map of the Month to show how our spectrometers can be used to reveal all the hidden secrets in your samples.NovemberTwo-photon excited fluorescence (2PEF) and second harmonic generation (SHG) are complementary multiphoton ...
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An interlaboratory comparison study for the determination of dialkyl phthalate esters in environmental and biological samples
A series of interlaboratory comparison exercises were conducted to assess the accuracy of dialkyl phthalate ester (DPE) concentration measurements in environmental and biological samples. Five laboratories participated in analyses to determine DPE concentrations in standard test solutions; marine sediments; three certified reference materials (CRMs), including CARP‐2 (fish muscle) and BCR‐07 ...
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Preparation of Biological, Phisiological, and Organic Samples for CVAAS Hg Determination
Pre-Treatment for Grain, Hair and Fishmeal ...
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Raman spectroscopy in biomedicine – non-invasive in vitro analysis of cells and extracellular matrix components in tissues
Raman spectroscopy is an established laser-based technology for the quality assurance of pharmaceutical products. Over the past few years, Raman spectroscopy has become a powerful diagnostic tool in the life sciences. Raman spectra allow assessment of the overall molecular constitution of biological samples, based on specific signals from proteins, nucleic acids, lipids, carbohydrates, and ...
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Cryogenic Process and Cryo Storage Solutions from Froilabo
The cryogenic process is a method of freezing and storing samples that involves cooling the temperature of biological materials to stop normal cellular processes and prevent sample degradation for long-term storage. The cryogenic process and cryo storage are ideal solutions for the storage of biological samples and ensuring cell viability over time.Storing a sample under cryogenic conditions ...
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Analysis of pesticide residues in drinking water samples using solid-phase micro-extraction (SPME) coupled to a gas chromatography-electron-capture detector (GC-ECD)
The headspace solid-phase micro-extraction (HS-SPME) method with polydimethylsiloxane (PDMS, 100 μm) fiber is a cost-effective technique for the determination of different pesticide residues in environmental and biological samples followed by a gas chromatography-electron-capture detector (GC-ECD). In the present study more than 147 water samples collected in and around Lucknow city were ...
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Monitoring exposure of brown bullheads and benthic macroinvertebrates to sediment contaminants in the Ashtabula River before, during, and after remediation
In 2007, approximately 420,500 cubic meters of contaminated sediment were removed from the Ashtabula River by dredging. The primary objective of this study was to monitor contaminant exposure in fish and macroinvertebrates before, during, and following dredging. This was done by measuring tissue concentrations of polychlorinated biphenyl (PCB) and polycyclic aromatic hydrocarbon (PAH) in brown ...
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SmartFreezer® - Automated Cryo Freezer for Safe Sample Handling
Cryogenic or cryo freezers are hailed as the gold standard for the long-term storage of biological samples. At cryogenic temperatures (-150°C to -190°C) all biological activity is suspended which prevents degradation.Traditional cryogenic storage uses internal racking systems which house cryoboxes containing numerous sample vials. Vial retrieval from such storage systems is a manual process and ...
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