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PubMed Journals Articles About "Eppendorf Research Plus Pipette" RSS

06:05 EDT 23rd September 2018 | BioPortfolio

Eppendorf Research Plus Pipette PubMed articles on BioPortfolio. Our PubMed references draw on over 21 million records from the medical literature. Here you can see the latest Eppendorf Research Plus Pipette articles that have been published worldwide.

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Showing "Eppendorf Research Plus Pipette" PubMed Articles 1–25 of 24,000+

Analysis of 10 β-agonists in pork meat using automated dispersive pipette extraction and LC-MS/MS.

An analytical procedure for the analysis of 10 β-adrenergic agonists (cimaterol, terbutaline, salbutamol, isoxsuprine, ractopamine, cimbuterol, clenbuterol, brombuterol, mabuterol and mapenterol) in pork meat was developed and validated using LC-MS/MS. An automated dispersive pipette extraction (DPX) was employed on a Hamilton Microlab® NIMBUS96® platform to extract the analytes of interest prior to LC-MS/MS analysis. The extraction time was


Protease specificity profiling in a pipette tip using "charge-synchronized" proteome-derived peptide libraries.

About 2% of the genome of human and other organisms codes for proteases. An important step toward deciphering the biological function of a protease and designing inhibitors is the profiling of protease specificity. In this work we present a novel, label-free, proteomics-based protease specificity profiling method that only requires simple sample preparation steps. It uses proteome-derived peptide libraries and enriches the cleaved sequences using strong cation exchange chromatography (SCX) material in a pip...

Development of an On-Chip Antibiotic Permeability Assay With Single Molecule Detection Capability.

Electrophysiology is the method of choice to characterize membrane channels. In this paper, we demonstrate a patch pipette based simple miniaturization that allows performing conductance measurements on a planar lipid bilayer in a microfluidic channel. Membrane proteins were reconstituted into Giant Unilamellar Vesicles (GUVs) by electroswelling, and GUVs with a single channel insertion were patched at the tip of pipette. We applied this approach to investigate the interactions of porins from E.coli with si...


An effective and high-throughput analytical methodology for pesticide screening in human urine by disposable pipette extraction and gas chromatography - mass spectrometry.

In this paper, the use of disposable pipette extraction (DPX) for the determination of pesticides in human urine in possible cases of poisoning is proposed for the first time. The pesticides studied were oxamyl, propoxur, carbofuran, 3‑hydroxycarbofuran, carbaryl, methiocarb, terbufos, parathion methyl, malathion, chlorpyrifos and endosulfan. The pipette tip used for the extraction of these compounds was commercially acquired. It has a capacity of 5 mL and contains 20 mg of sorbent material (styrene-d...

Hollow mesoporous structured molecularly imprinted polymer as adsorbent in pipette-tip solid-phase extraction for the determination of antiretrovirals from plasma of HIV-infected patients.

In this work a hollow mesoporous structured molecularly imprinted polymer was synthetized and used as adsorbent in pipette-tip solid-phase extraction for the determination of lamivudine (3TC), zidovudine (AZT) and efavirenz (EFZ) from plasma of human immunodeficiency virus (HIV) infected patients by high-performance liquid chromatography (HPLC). All parameters that influence the recovery of the pipette tip based on hollow mesoporous molecularly imprinted polymer solid-phase extraction (PT-HM-MIP-SPE) method...

Preparation of acryloyl β-cyclodextrin-silica hybrid monolithic column and its application in pipette tip solid-phase extraction and HPLC analysis of methyl parathion and fenthion.

An acryloyl β-cyclodextrin-silica hybrid monolithic column for pipette tip solid-phase extraction and high-performance liquid chromatography determination of methyl parathion and fenthion have been prepared through a sol-gel polymerization method. The synthesis conditions, including the volume of cross-linker and the ratio of inorganic solution to organic solution, were optimized. The prepared monolithic column was characterized by thermogravimetric analysis, scanning electron microscopy and Fourier transf...

Suction Pipette Technique: An Electrophysiological Tool to Study Olfactory Receptor-Dependent Signal Transduction.

The first step to perceive molecules in the air as odors is their detection by the olfactory receptors (ORs) present in the cilia of the olfactory sensory neurons (OSNs) in the nasal cavity. The binding of the odorant molecule to the OR triggers a series of biochemical events that lead to the opening of ion channels, creating at first a generator potential that, if the latter reaches threshold, leads to action potential firing. New insights into olfactory transduction introduced new key players and highligh...

Increasing Residency Research Output While Cultivating Community Research Collaborations.

Having a research curriculum in addition to hosting a resident research day stimulates research activity in residency programs. Research collaborations outside an individual residency program may also promote research in residency. This paper describes a community-wide health research forum that engages faculty and residents in research while bringing together potential research collaborators from the community.

An automated system for rapid cellular extraction from live zebrafish embryos and larvae: Development and application to genotyping.

Zebrafish are a valuable model organism in biomedical research. Their rapid development, ability to model human diseases, utility for testing genetic variants identified from next-generation sequencing, amenity to CRISPR mutagenesis, and potential for therapeutic compound screening, has led to their wide-spread adoption in diverse fields of study. However, their power for large-scale screens is limited by the absence of automated genotyping tools for live animals. This constrains potential drug screen optio...

Resistive Analysis of Hydrogen Peroxide in one Axon of single Neuron with Nano-pipettes.

Electrochemical analysis of intracellular hydrogen peroxide in sub-micron scaled cellular protrusion is challenging that requires highly sensitive nanoelectrode and advanced electrochemical detection system. In this technical note, a resistive analysis based on acrylic acid polymerization in the nano-pipettes is established to measure hydrogen peroxide in one axon of single neuron. Upon the position of nano-pipette tip inside the axon, hydrogen peroxide is electrokinetically loaded into the pipette to react...

Research matters: Meta-spin cycles, the blindness of bias, and rebuilding trust.

Meta-research is research about research. Meta-research may not be as click-worthy as a meta-pug-a pug dog dressed up in a pug costume-but it is crucial to understanding research. A particularly valuable contribution of meta-research is to identify biases in a body of evidence. Bias can occur in the design, conduct, or publication of research and is a systematic deviation from the truth in results or inferences. The findings of meta-research can tell us which evidence to trust and what must be done to impro...

Application of a sperm survival test: Results from an external quality control programme.

The study aim is to determine which type of material - pipette tips or culture medium - is more appropriate for use in a cytotoxicity external quality control programme (CT-EQC).

A consensus statement on how to conduct inclusive health research.

The active involvement of people with intellectual disabilities in research, or inclusive research, is relatively common. However, inclusive health research is less common, even though it is expected to lead to appropriate healthcare and increased quality of life. Inclusive health research can build upon lessons learned from inclusive research.

Improving the process of research ethics review.

Research Ethics Boards, or Institutional Review Boards, protect the safety and welfare of human research participants. These bodies are responsible for providing an independent evaluation of proposed research studies, ultimately ensuring that the research does not proceed unless standards and regulations are met.

Is the Right Research Being Conducted to Advance Knowledge about Breast Reconstruction? An Analysis of the Research Pipeline.

It has been estimated that up to 85 percent of research is of limited value or wasted, in part because of the wrong research questions being addressed. In this study, the authors identified research gaps for breast reconstruction using guideline recommendations based on low-quality or no evidence. The authors then evaluated whether research was currently being conducted to fill these gaps.

Transdisciplinary research for impact: protocol for a realist evaluation of the relationship between transdisciplinary research collaboration and knowledge translation.

Transdisciplinary teams are increasingly regarded as integral to conducting effective research. Similarly, knowledge translation is often seen as a solution to improving the relevance and benefits of health research. Yet, whether, how, for whom and under which circumstances transdisciplinary research influences knowledge translation is undertheorised, which limits its potential impact. The proposed research aims to identify the contexts and mechanisms by which transdisciplinary research contributes to devel...

Evaluation of a Center of Research Excellence in Polycystic Ovary Syndrome as a Large-Scale Collaborative Research Translation Initiative, Including Evaluating Translation of Guideline Impact.

Research translation and evaluation are often underconsidered in research design and implementation thus limiting research benefit to the end user. In this article, we first describe a best practice approach to evaluation, for a center of research excellence in polycystic ovary syndrome. Within this, we outline a comprehensive research translation program with inbuilt evaluation of the first (2018). We seek to provide a real-world example of comprehensive approaches to evaluation and research translation.

Informed consent to research trials on Alzheimer's disease: how to foster research without infringing upon the patient's right to self-determination.

Meta-research: Why research on research matters.

Meta-research is the study of research itself: its methods, reporting, reproducibility, evaluation, and incentives. Given that science is the key driver of human progress, improving the efficiency of scientific investigation and yielding more credible and more useful research results can translate to major benefits. The research enterprise grows very fast. Both new opportunities for knowledge and innovation and new threats to validity and scientific integrity emerge. Old biases abound, and new ones continuo...

A bibliometric analysis of tuberculosis research, 2007-2016.

Tuberculosis (TB) research is a key component of the End TB Strategy. To track research output, we conducted a bibliometric analysis of TB research from the past decade.

Global research partnerships in advancing public health: A case study on India.

Collaborative research is integral to medicine. Multi-national and multi-institutional research partnerships produce advances in medicine and public health that have a significant societal impact. Developing nations can gain from such collaborative partnerships in achieving progress in sustainable development goals. However, it is important that the research agenda is relevant to the region where studies are conducted. Funding of research by the national government and regional organisations will ensure tha...

Capacity to conduct health research among NGOs in Malawi: Diverse strengths, needs and opportunities for development.

The role of non-governmental organisations (NGOs) in health research has attracted growing attention. NGOs are important service providers and advocates in international health, and conducting research can help NGOs to strengthen these service delivery and advocacy activities. However, capacity to conduct research varies among NGOs. There is currently limited evidence on NGOs' research capacity that can explain why capacity varies or indicate potential areas for support. We examined NGOs' capacity to conduc...

Engaging outreach workers in the development of a farmworker health research agenda.

Farmworker health outreach workers have not traditionally been involved in the prioritization and design of research studies. This report from the field shares the results of a survey administered to outreach workers providing health services to farmworkers in North Carolina. Priority areas of research and best practices for engaged research are presented from the perspective of the outreach worker community. The purposeful involvement of outreach workers can make farmworker health research more meaningful ...

Is It Time to Re-Evaluate the Ethics Governance of Social Media Research?

This article reports on a U.K. workshop on social media research ethics held in May 2018. There were 10 expert speakers and an audience of researchers, research ethics committee members, and research institution representatives. Participants reviewed the current state of social media ethics, discussing well-rehearsed questions such as what needs consent in social media research, and how the public/private divide differs between virtual and real-life environments. The lack of answers to such questions was no...

Using democracy to award research funding: an observational study.

Winning funding for health and medical research usually involves a lengthy application process. With success rates under 20%, much of the time spent by 80% of applicants could have been better used on actual research. An alternative funding system that could save time is using democracy to award the most deserving researchers based on votes from the research community. We aimed to pilot how such a system could work and examine some potential biases.


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