598 results match your criteria BioMagnetic Research and Technology [Journal]


In Older Patients Treated for Dizziness and Vertigo in Multimodal Rehabilitation Somatic Deficits Prevail While Anxiety Plays a Minor Role Compared to Young and Middle Aged Patients.

Front Aging Neurosci 2018 30;10:345. Epub 2018 Oct 30.

Center for Vertigo and Dizziness, Hans-Berger Department of Neurology, Jena University Hospital, Jena, Germany.

Many patients with dizziness and vertigo are of older age. It is still unclear which age-associated factors play a role in the treatment of dizziness and vertigo. Therefore, age-associated characteristics of patients subjected to an interdisciplinary day care approach for chronic vertigo and dizziness were analyzed. Read More

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October 2018
3 Reads

Characterizing pelvic floor muscles activities using magnetomyography.

Neurourol Urodyn 2018 Nov 2. Epub 2018 Nov 2.

Department of Obstetrics and Gynecology, University of Arkansas for Medical Sciences, Little Rock, Arkansas.

Aims: To characterize levator ani muscle (LAM) activity in nulligravidas using magnetomyography (MMG) and define MMG characteristics associated with LAM activity with and without accessory muscle contributions.

Methods: MMG data were collected from eight nulligravidas during rest and voluntary LAM contractions (Kegels) of varying intensity. We utilized simultaneous vaginal manometry and surface electromyography (sEMG) to evaluate for accessory muscle recruitment. Read More

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November 2018
1 Read

Magnetocardiography on an isolated animal heart with a room-temperature optically pumped magnetometer.

Sci Rep 2018 Nov 1;8(1):16218. Epub 2018 Nov 1.

Niels Bohr Institute, University of Copenhagen, Blegdamsvej 17, 2100, Copenhagen, Denmark.

Optically pumped magnetometers are becoming a promising alternative to cryogenically-cooled superconducting magnetometers for detecting and imaging biomagnetic fields. Magnetic field detection is a completely non-invasive method, which allows one to study the function of excitable human organs with a sensor placed outside the human body. For instance, magnetometers can be used to detect brain activity or to study the activity of the heart. Read More

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November 2018

Leaf magnetic properties as a method for predicting heavy metal concentrations in PM using support vector machine: A case study in Nanjing, China.

Environ Pollut 2018 Nov 6;242(Pt A):922-930. Epub 2018 Jul 6.

State Key Laboratory of Pollution Control and Resources Reuse, School of the Environment, Nanjing University, Nanjing 210023, China.

The aim of this study was to establish a method for predicting heavy metal concentrations in PM (particulate matter with a diameter of less than 2.5 μm) using support vector machine (SVM) models combined with magnetic properties of leaves. In this study, PM samples and the leaves of three common evergreen tree species were collected simultaneously during four different seasons in Nanjing, China. Read More

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November 2018
4.143 Impact Factor

Acute Stroke Treatment by Surgical Recanalization of Extracranial Internal Carotid Artery Occlusion: A Single Center Experience.

Vasc Endovascular Surg 2018 Oct 9:1538574418800131. Epub 2018 Oct 9.

1 Hans Berger Department of Neurology, University Hospital Jena, Friedrich-Schiller University, Jena, Germany.

Ischemic stroke due to an acute occlusion of the extracranial internal carotid artery (eICA) is associated with high morbidity and mortality. The best treatment option remains unclear. This study aims to increase the available therapeutic experience documented for surgical recanalization of acute eICA occlusions. Read More

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October 2018
2 Reads

The impact of motor impairment on the processing of sensory information.

Behav Brain Res 2018 Sep 21. Epub 2018 Sep 21.

Department of Otorhinolaryngology, Jena University Hospital, Germany; Facial-Nerve-Center, Jena University Hospital, Germany.

Sensorimotor adaptation is driven by mismatch errors between desired movements and actual movement outcomes. A mismatch error can be minimized by adjusting movements or by altering the interpretation of sensory information. While the effect of mismatch errors on the motor system has received much attention, the contribution of somatosensory feedback, particularly the sensory-motor interplay in the process of adaptation, remains poorly understood. Read More

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September 2018
1 Read

Developmental milestones of the autonomic nervous system revealed via longitudinal monitoring of fetal heart rate variability.

PLoS One 2018 17;13(7):e0200799. Epub 2018 Jul 17.

Hans Berger Clinic of Neurology, Biomagnetic Center, Jena University Hospital, Jena, Germany.

Background: Fetal heart rate variability (fHRV) of normal-to-normal (NN) beat intervals provides high-temporal resolution access to assess the functioning of the autonomic nervous system (ANS).

Aim: To determine critical periods of fetal autonomic maturation. The developmental pace is hypothesized to change with gestational age (GA). Read More

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July 2018
3 Reads

Biomonitoring of atmospheric particulate pollution via chemical composition and magnetic properties of roadside tree leaves.

Environ Sci Pollut Res Int 2018 Sep 2;25(26):25994-26004. Epub 2018 Jul 2.

Lab of Environmental and Urban Ecology, Department of Bioscience Engineering, Faculty of Sciences, University of Antwerp, Groenenborgerlaan 171, 2020, Antwerp, Belgium.

Particulate matter (PM) is a main atmospheric pollution which threats human health and well-being. In this research, we chemically and magnetically analysed roadside tree leaves, collected from three tree species in two main roads (from two different cities) and a reference area, for 28 elements and the saturation isothermal remanent magnetisation. Comparison of unwashed and washed leaves revealed that deposited particles on the leaf surface contain various elements including Al, Ca, Fe, Mg, Mn, Na, Si, Ti, Ba, Co, Cr, Cu, Ni, Rb, V, Zn and Zr. Read More

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September 2018
1 Read

The Use of Ostrich Eggs for In Ovo Research: Making Preclinical Imaging Research Affordable and Available.

J Nucl Med 2018 Dec 22;59(12):1901-1906. Epub 2018 Jun 22.

Clinic of Nuclear Medicine, Jena University Hospital, Jena, Germany.

In ovo studies are a valuable option in preclinical research, but imaging studies are severely limited by the costs of dedicated equipment needed for small-sized eggs. We sought to verify the feasibility of using larger, ostrich, eggs () for imaging on the PET/CT scanners used for routine clinical investigations. Ostrich eggs were incubated until shortly before hatching, prepared for intravitelline venous injection of contrast medium or radiotracer, and imaged using native CT, contrast-enhanced CT, and PET/CT. Read More

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December 2018

Signal Space Separation Method for a Biomagnetic Sensor Array Arranged on a Flat Plane for Magnetocardiographic Applications: A Computer Simulation Study.

Authors:
Kensuke Sekihara

J Healthc Eng 2018 26;2018:7689589. Epub 2018 Apr 26.

Signal Analysis Inc., Hachioji, Tokyo, Japan.

Although the signal space separation (SSS) method can successfully suppress interference/artifacts overlapped onto magnetoencephalography (MEG) signals, the method is considered inapplicable to data from nonhelmet-type sensor arrays, such as the flat sensor arrays typically used in magnetocardiographic (MCG) applications. This paper shows that the SSS method is still effective for data measured from a (nonhelmet-type) array of sensors arranged on a flat plane. By using computer simulations, it is shown that the optimum location of the origin can be determined by assessing the dependence of signal and noise gains of the SSS extractor on the origin location. Read More

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Fetal assessment in buprenorphine-maintained women using fetal magnetoencephalography: a pilot study.

Addiction 2018 Oct 13;113(10):1895-1904. Epub 2018 Jun 13.

Department of Obstetrics and Gynecology, University of Arkansas for Medical Sciences, Little Rock, AR, USA.

Background And Aims: In-utero exposure to opioids including buprenorphine (BUP) has been shown to affect fetal activity, specifically heart-rate variability (FHRV) and fetal movement (FM). Our objective was to extract simultaneous recordings of fetal cardiac and brain-related activity in BUP-maintained and non-opioid exposed pregnant women using a novel non-invasive biomagnetic technique.

Design: A pilot study was conducted, recording and analyzing biomagnetic data from fetuses of BUP-maintained and non-opioid exposed pregnant women. Read More

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October 2018
6 Reads

Novel bifunctional cap for simultaneous electroencephalography and transcranial electrical stimulation.

Sci Rep 2018 May 8;8(1):7259. Epub 2018 May 8.

Institute of Biomedical Engineering and Informatics, Technische Universität Ilmenau, 98693, Ilmenau, Germany.

Neuromodulation induced by transcranial electric stimulation (TES) exhibited promising potential for clinical practice. However, the underlying mechanisms remain subject of research. The combination of TES and electroencephalography (EEG) offers great potential for investigating these mechanisms and brain function in general, especially when performed simultaneously. Read More

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May 2018
2 Reads

MNE Scan: Software for real-time processing of electrophysiological data.

J Neurosci Methods 2018 Jun 3;303:55-67. Epub 2018 Apr 3.

Massachusetts General Hospital, Massachusetts Institute of Technology, Harvard Medical School, Athinoula A. Martinos Center for Biomedical Imaging, 149 13th St., Charlestown, MA 02129, USA; Boston Children's Hospital, Division of Newborn Medicine, Department of Medicine, Harvard Medical School, Boston, MA 02115 USA.

Background: Magnetoencephalography (MEG) and Electroencephalography (EEG) are noninvasive techniques to study the electrophysiological activity of the human brain. Thus, they are well suited for real-time monitoring and analysis of neuronal activity. Real-time MEG/EEG data processing allows adjustment of the stimuli to the subject's responses for optimizing the acquired information especially by providing dynamically changing displays to enable neurofeedback. Read More

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June 2018
7 Reads

A Comparison of Five Algorithms for Fetal Magnetocardiography Signal Extraction.

Cardiovasc Eng Technol 2018 Sep 26;9(3):483-487. Epub 2018 Mar 26.

Department of Obstetrics and Gynecology, University of Arkansas for Medical Sciences, 4301 West Markham St., #518, Little Rock, AR, 72205, USA.

Fetal magnetocardiography (fMCG) provides accurate and reliable measurements of electrophysiological events in the fetal heart and is capable of studying fetuses with congenital heart diseases. A variety of techniques exist to extract the fMCG signal with the demand for non-invasively obtained fetal cardiac information. To the best of our knowledge, there is no comparative study published in the field as to how the various extraction algorithms perform. Read More

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September 2018
6 Reads

In-vivo biomagnetic characterisation of the American cockroach.

Sci Rep 2018 Mar 23;8(1):5140. Epub 2018 Mar 23.

School of Physical and Mathematical Sciences, Nanyang Technological University, Singapore, 637371, Singapore.

We present a quantitative method, utilising a highly sensitive quantum sensor, that extends applicability of magnetorelaxometry to biological samples at physiological temperature. The observed magnetic fields allow for non-invasive determination of physical properties of magnetic materials and their surrounding environment inside the specimen. The method is applied to American cockroaches and reveals magnetic deposits with strikingly different behaviour in alive and dead insects. Read More

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Spinal dura mater: biophysical characteristics relevant to medical device development.

J Med Eng Technol 2018 Feb 23;42(2):128-139. Epub 2018 Mar 23.

b Department of Neurosurgery , University of Iowa Hospitals and Clinics , Iowa City , IA , USA.

Understanding the relevant biophysical properties of the spinal dura mater is essential to the design of medical devices that will directly interact with this membrane or influence the contents of the intradural space. We searched the literature and reviewed the pertinent characteristics for the design, construction, testing, and imaging of novel devices intended to perforate, integrate, adhere or reside within or outside of the spinal dura mater. The spinal dura mater is a thin tubular membrane composed of collagen and elastin fibres that varies in circumference along its length. Read More

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February 2018
1 Read

Universal characteristics of evolution and development are inherent in fetal autonomic brain maturation.

Auton Neurosci 2018 Jul 5;212:32-41. Epub 2018 Mar 5.

Biomagnetic Center, Hans Berger Department of Neurology, Jena University Hospital, Friedrich Schiller University, Jena, Germany. Electronic address:

Adverse prenatal environmental influences to the developing fetus are associated with mental and cardiovascular disease in later life. Universal developmental characteristics such as self-organization, pattern formation, and adaptation in the growing information processing system have not yet been sufficiently analyzed with respect to description of normal fetal development and identification of developmental disturbances. Fetal heart rate patterns are the only non-invasive order parameter of the developing autonomic brain available with respect to the developing complex organ system. Read More

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July 2018
3 Reads

Somatosensory deficits.

Handb Clin Neurol 2018 ;151:185-206

Hans-Berger Department of Neurology, Jena University Hospital, Jena, Germany.

The analysis and interpretation of somatosensory information are performed by a complex network of brain areas located mainly in the parietal cortex. Somatosensory deficits are therefore a common impairment following lesions of the parietal lobe. This chapter summarizes the clinical presentation, examination, prognosis, and therapy of sensory deficits, along with current knowledge about the anatomy and function of the somatosensory system. Read More

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Hybrid GMR Sensor Detecting 950 pT/sqrt(Hz) at 1 Hz and Room Temperature.

Sensors (Basel) 2018 Mar 6;18(3). Epub 2018 Mar 6.

Picosense Inc., Berkeley, CA 94704, USA.

Advances in the magnetic sensing technology have been driven by the increasing demand for the capability of measuring ultrasensitive magnetic fields. Among other emerging applications, the detection of magnetic fields in the picotesla range is crucial for biomedical applications. In this work Picosense reports a millimeter-scale, low-power hybrid magnetoresistive-piezoelectric magnetometer with subnanotesla sensitivity at low frequency. Read More

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Modeling and analysis of biomagnetic blood Carreau fluid flow through a stenosis artery with magnetic heat transfer: A transient study.

PLoS One 2018 28;13(2):e0192138. Epub 2018 Feb 28.

Division of Computational Physics, Institute for Computational Science, Ton Duc Thang University, Ho Chi Minh City, Vietnam.

We present a numerical investigation of tapered arteries that addresses the transient simulation of non-Newtonian bio-magnetic fluid dynamics (BFD) of blood through a stenosis artery in the presence of a transverse magnetic field. The current model is consistent with ferro-hydrodynamic (FHD) and magneto-hydrodynamic (MHD) principles. In the present work, blood in small arteries is analyzed using the Carreau-Yasuda model. Read More

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March 2018
1 Citation
3.230 Impact Factor

Air-Stable Anisotropic Monocrystalline Nickel Nanowires Characterized Using Electron Holography.

Nano Lett 2018 03 13;18(3):1733-1738. Epub 2018 Feb 13.

Laboratoire de Chimie de Coordination , CNRS UPR 8241 , 205 route de Narbonne , 31077 Toulouse , France.

Nickel is capable of discharging electric and magnetic shocks in aerospace materials thanks to its conductivity and magnetism. Nickel nanowires are especially desirable for such an application as electronic percolation can be achieved without significantly increasing the weight of the composite material. In this work, single-crystal nickel nanowires possessing a homogeneous magnetic field are produced via a metal-organic precursor decomposition synthesis in solution. Read More

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March 2018
3 Reads

Integrated Giant Magnetoresistance Technology for Approachable Weak Biomagnetic Signal Detections.

Sensors (Basel) 2018 Jan 7;18(1). Epub 2018 Jan 7.

State Key Laboratory of Fluid Power and Mechatronic Systems, Zhejiang University, Hangzhou 310028, China.

With the extensive applications of biomagnetic signals derived from active biological tissue in both clinical diagnoses and human-computer-interaction, there is an increasing need for approachable weak biomagnetic sensing technology. The inherent merits of giant magnetoresistance (GMR) and its high integration with multiple technologies makes it possible to detect weak biomagnetic signals with micron-sized, non-cooled and low-cost sensors, considering that the magnetic field intensity attenuates rapidly with distance. This paper focuses on the state-of-art in integrated GMR technology for approachable biomagnetic sensing from the perspective of discipline fusion between them. Read More

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January 2018
1 Read

Symmetry-breaking inelastic wave-mixing atomic magnetometry.

Sci Adv 2017 Dec 1;3(12):e1700422. Epub 2017 Dec 1.

National Institute of Standards and Technology, Gaithersburg, MD 20899, USA.

The nonlinear magneto-optical rotation (NMOR) effect has prolific applications ranging from precision mapping of Earth's magnetic field to biomagnetic sensing. Studies on collisional spin relaxation effects have led to ultrahigh magnetic field sensitivities using a single-beam Λ scheme with state-of-the-art magnetic shielding/compensation techniques. However, the NMOR effect in this widely used single-beam Λ scheme is peculiarly small, requiring complex radio-frequency phase-locking protocols. Read More

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December 2017
8 Reads

Chronic intensive care-related pain: Exploratory analysis on predictors and influence on health-related quality of life.

Eur J Pain 2018 02 5;22(2):402-413. Epub 2017 Nov 5.

Integrated Research and Treatment Center, Center for Sepsis Control and Care (CSCC), Jena University Hospital, Germany.

Background: There is growing evidence for the development of chronic pain after intensive care. Nonetheless, there is only limited knowledge about factors leading to chronic intensive care-related pain (CIRP). Thus, the primary objective was the identification of predictors of CIRP. Read More

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February 2018

New Frontiers in Heart Rate Variability and Social Coherence Research: Techniques, Technologies, and Implications for Improving Group Dynamics and Outcomes.

Authors:
Rollin McCraty

Front Public Health 2017 12;5:267. Epub 2017 Oct 12.

Research, HeartMath Institute, Boulder Creek, CA, United States.

Concepts embraced by the term coherence have been identified as central to fields such as quantum physics, physiology, and social science. There are different types of coherence, although the term always implies a harmonious relationship, correlations and connections between the various parts of a system. A specific measure derived from heart rate variability (HRV) provides a measure of physiological coherence. Read More

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October 2017
1 Read

Biomagnetic Pair Therapy and Typhoid Fever: A Pilot Study.

Authors:
Bryan L Frank

Med Acupunct 2017 Oct;29(5):308-312

Re-Genesis Health: New Beginnings in Health & Wellness, Global Mission Partners, Inc., Edmond, OK.

This pilot study examined the laboratory responses of patients with laboratory-documented typhoid fever who were treated with Biomagnetic Pair Therapy (BPT; medical biomagnetism), a specific application of pairs of magnets for various ailments that are infectious and otherwise. This study was an assessment of patients' response to treatment with only BPT for infections (typhoid fever) using standard conventional laboratory techniques. The research was conducted in an outpatient village clinic in Kenya. Read More

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October 2017
2 Reads

Distinct spatiotemporal patterns of neuronal functional connectivity in primary progressive aphasia variants.

Brain 2017 Oct;140(10):2737-2751

Biomagnetic Imaging Laboratory, Department of Radiology and Biomedical Imaging, University of California San Francisco, San Francisco CA 94143, USA.

Primary progressive aphasia is a syndrome characterized by progressive loss of language abilities with three main phenotypic clinical presentations, including logopenic, non-fluent/agrammatic, and semantic variants. Previous imaging studies have shown unique anatomic impacts within language networks in each variant. However, direct measures of spontaneous neuronal activity and functional integrity of these impacted neural networks in primary progressive aphasia are lacking. Read More

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October 2017
24 Reads

Elucidation of one step synthesis of PEGylated CuFe bimetallic nanoparticles. Antimicrobial activity of CuFe@PEG vs Cu@PEG.

J Inorg Biochem 2017 12 23;177:159-170. Epub 2017 Sep 23.

Lab of Inorganic Chemistry, Department of Chemistry, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece. Electronic address:

There is a growing field of research on the physicochemical properties of bimetallic nanoparticles (BMNPs) and their potential use in different applications. Meanwhile, their antimicrobial activity is scarcely reported, although BMNPs can potentially achieve unique chemical transformations and synergetic effects can be presented. Towards this direction a reproducible simple hybrid polyol process under moderate temperature solvothermal conditions has been applied for the isolation of non-oxide contaminated bimetallic CuFe nanoparticles (NPs). Read More

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December 2017

An engineering approach to synthesis of gold and silver nanoparticles by controlling hydrodynamics and mixing based on a coaxial flow reactor.

Nanoscale 2017 Sep;9(37):14149-14161

Department of Chemical Engineering, University College London, Torrington Place, London, WC1E 7JE, UK.

In this work we present a detailed study of flow technology approaches that could open up new possibilities for nanoparticle synthesis. The synthesis of gold and silver nanoparticles (NPs) in a flow device based on a coaxial flow reactor (CFR) was investigated. The CFR comprised of an outer glass tube of 2 mm inner diameter (I. Read More

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September 2017
17 Reads

Real-Time Clustered Multiple Signal Classification (RTC-MUSIC).

Brain Topogr 2018 01 6;31(1):125-128. Epub 2017 Sep 6.

Institute of Biomedical Engineering and Informatics, Technische Universität Ilmenau, Ilmenau, Germany.

Magnetoencephalography (MEG) and electroencephalography provide a high temporal resolution, which allows estimation of the detailed time courses of neuronal activity. However, in real-time analysis of these data two major challenges must be handled: the low signal-to-noise ratio (SNR) and the limited time available for computations. In this work, we present real-time clustered multiple signal classification (RTC-MUSIC) a real-time source localization algorithm, which can handle low SNRs and can reduce the computational effort. Read More

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January 2018
1 Read

A new insight into the thermodynamical criterion for the preparation of semiconductor and metal nanocrystals using a polymerized complexing method.

Phys Chem Chem Phys 2017 Sep;19(36):24742-24751

Biophysics Group, Department of Physics and Astronomy, University College London, London WC1E 6BT, UK and UCL Healthcare Biomagnetic and Nanomaterials Laboratories, London W1S 4BS, UK.

This work reports the intrinsic thermodynamical criterion for the preparation of metal and semiconductor nanocrystals using a polymerized complexing method. The basic principle of this method is the formation of a polymerized complexing structure between mono-, binary-, or ternary-metallic ions and bonding agents in aqueous or ethylene glycol solutions by evaporation of the solvents. Heat treatment of the complexing structure under N atmosphere produces H and CH gases, which can reduce the oxide crystalline nuclei to semiconductor and metallic nanocrystals. Read More

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September 2017
12 Reads

Subspace-based interference removal methods for a multichannel biomagnetic sensor array.

J Neural Eng 2017 Oct 18;14(5):051001. Epub 2017 Aug 18.

Signal Analysis Inc., Hachioji, Tokyo, Japan. Department of Advanced Technology in Medicine, Tokyo Medical and Dental University, 1-5-45 Yushima, Bunkyo-ku, Tokyo 113-8519, Japan.

Objective: In biomagnetic signal processing, the theory of the signal subspace has been applied to removing interfering magnetic fields, and a representative algorithm is the signal space projection algorithm, in which the signal/interference subspace is defined in the spatial domain as the span of signal/interference-source lead field vectors. This paper extends the notion of this conventional (spatial domain) signal subspace by introducing a new definition of signal subspace in the time domain.

Approach: It defines the time-domain signal subspace as the span of row vectors that contain the source time course values. Read More

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October 2017
4 Reads

Head phantoms for electroencephalography and transcranial electric stimulation: a skull material study.

Biomed Tech (Berl) 2018 Nov;63(6):683-689

Institute of Biomedical Engineering and Informatics, Department of Computer Science and Automation, Technische Universität Ilmenau, D-98683 Ilmenau, Germany.

Physical head phantoms allow the assessment of source reconstruction procedures in electroencephalography and electrical stimulation profiles during transcranial electric stimulation. Volume conduction in the head is strongly influenced by the skull, which represents the main conductivity barrier. Realistic modeling of its characteristics is thus important for phantom development. Read More

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November 2018
4 Reads

Prenatal developmental origins of behavior and mental health: The influence of maternal stress in pregnancy.

Neurosci Biobehav Rev 2017 Jul 28. Epub 2017 Jul 28.

Hans Berger Department of Neurology, Jena University Hospital, Jena, Germany. Electronic address:

Accumulating research shows that prenatal exposure to maternal stress increases the risk for behavioral and mental health problems later in life. This review systematically analyzes the available human studies to identify harmful stressors, vulnerable periods during pregnancy, specificities in the outcome and biological correlates of the relation between maternal stress and offspring outcome. Effects of maternal stress on offspring neurodevelopment, cognitive development, negative affectivity, difficult temperament and psychiatric disorders are shown in numerous epidemiological and case-control studies. Read More

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July 2017
8 Reads

Transfer of Patients in a Telestroke Network: What Are the Relevant Factors for Making This Decision?

Telemed J E Health 2018 02 27;24(2):116-120. Epub 2017 Jul 27.

1 Hans Berger Department of Neurology, Jena University Hospital, Friedrich Schiller University Jena , Jena, Germany .

Background/Introduction: Current telestroke network consultations are focused on decision-making in the hyperacute stage of stroke management. The two main questions in telestroke consultations are whether thrombolysis should be initiated and whether the patient should be transferred to a hub hospital. Although guidelines exist for initiating intravenous thrombolytic therapy, the question of whether patients should be transferred is far more elusive. Read More

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February 2018
14 Reads

Enzymatic mechanisms of biological magnetic sensitivity.

Bioelectromagnetics 2017 Oct 17;38(7):511-521. Epub 2017 Jul 17.

Osaka Ohtani University, Tondabayashi, Japan.

Primary biological magnetoreceptors in living organisms is one of the main research problems in magnetobiology. Intracellular enzymatic reactions accompanied by electron transfer have been shown to be receptors of magnetic fields, and spin-dependent ion-radical processes can be a universal mechanism of biological magnetosensitivity. Magnetic interactions in intermediate ion-radical pairs, such as Zeeman and hyperfine (HFI) interactions, in accordance with proposed strict quantum mechanical theory, can determine magnetic-field dependencies of reactions that produce biologically important molecules needed for cell growth. Read More

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October 2017
4 Reads

Forced- and Self-Rotation of Magnetic Nanorods Assembly at the Cell Membrane: A Biomagnetic Torsion Pendulum.

Small 2017 Aug 29;13(31). Epub 2017 Jun 29.

Laboratoire Matière et Systèmes Complexes (MSC), UMR 7057, CNRS and Université Paris Diderot, Paris Cedex 05, 75205, France.

In order to provide insight into how anisotropic nano-objects interact with living cell membranes, and possibly self-assemble, magnetic nanorods with an average size of around 100 nm × 1 µm are designed by assembling iron oxide nanocubes within a polymeric matrix under a magnetic field. The nano-bio interface at the cell membrane under the influence of a rotating magnetic field is then explored. A complex structuration of the nanorods intertwined with the membranes is observed. Read More

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August 2017
9 Reads

Synthesis of magnetic nanoparticles and their dispersions with special reference to applications in biomedicine and biotechnology.

Authors:
R V Mehta

Mater Sci Eng C Mater Biol Appl 2017 Oct 28;79:901-916. Epub 2017 May 28.

Department of Physics, Maharaja Krishnakumarsinhji Bhavnagar University, Bhavnagar 364002, India. Electronic address:

Biomedical and biotechnological applications of magnetic nanoparticles and their dispersions in liquids are found to be potentially useful. An exponential growth in publications of papers, reviews and patents has been observed. Possibilities of their indiscriminate use on individual as well as environmental health hazards are also investigated. Read More

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October 2017
1 Read

Gastrointestinal disorders after immunosuppression: an experimental model to evaluate the influence of monotherapy on motility parameters.

Exp Physiol 2017 08 12;102(8):924-933. Epub 2017 Jul 12.

Institute of Biological Sciences and Health - Federal University of Mato Grosso - UFMT, Barra do Garças, Mato Grosso, Brazil.

New Findings: What is the central question of this study? The aim was to propose an animal model for investigating the effects of immunosuppressive monotherapy on gastrointestinal motility using a non-invasive biomagnetic technique. What is main finding and its importance? In our experimental study, immunosuppressive drugs currently in use accelerated gastric emptying whilst increasing the frequency and amplitude of gastric contractions after treatment, except for Mycophenolate and azathioprine. Alternating current biosusceptometry is a useful tool to evaluate side-effects of drugs on the gastrointestinal tract, which will help in understanding the symptoms and improving clinical management of patients. Read More

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August 2017
6 Reads

Biomagnetic Monitoring of Atmospheric Pollution: A Review of Magnetic Signatures from Biological Sensors.

Environ Sci Technol 2017 Jun 9;51(12):6648-6664. Epub 2017 Jun 9.

Laboratory of Environmental and Urban Ecology, Department of Bioscience Engineering, University of Antwerp , Groenenborgerlaan 171, 2020 Antwerp, Belgium.

Biomagnetic monitoring of atmospheric pollution is a growing application in the field of environmental magnetism. Particulate matter (PM) in atmospheric pollution contains readily measurable concentrations of magnetic minerals. Biological surfaces, exposed to atmospheric pollution, accumulate magnetic particles over time, providing a record of location-specific, time-integrated air quality information. Read More

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June 2017
16 Reads

In-service characterization of a polymer wick-based quasi-dry electrode for rapid pasteless electroencephalography.

Biomed Tech (Berl) 2018 Jul;63(4):349-359

CEMUC - Department of Mechanical Engineering, University of Coimbra, 3030-788 Coimbra, Portugal.

A novel quasi-dry electrode prototype, based on a polymer wick structure filled with a specially designed hydrating solution is proposed for electroencephalography (EEG) applications. The new electrode does not require the use of a conventional electrolyte paste to achieve a wet, low-impedance scalp contact. When compared to standard commercial Ag/AgCl sensors, the proposed wick electrodes exhibit similar electrochemical noise and potential drift values. Read More

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July 2018
62 Reads

Biomagnetic monitoring and element content of lichen transplants in a mixed land use area of NE Italy.

Sci Total Environ 2017 Oct 18;595:858-867. Epub 2017 Apr 18.

Università degli Studi di Trieste, Dipartimento di Scienze della Vita, Via L. Giorgieri 10, I-34127 Trieste, Italy. Electronic address:

The aim of this study was to verify whether it is possible to discriminate between the different pollution sources present in a mixed land use area of NE Italy on the basis of the magnetic properties and the element content of lichen transplants. Thalli of Pseudevernia furfuracea were collected in a pristine area of the South-Eastern Alps and exposed for 2months in 40 sites located at the knots of a 700m step grid covering ca. 40km of a mosaic of agricultural, forested, industrial and urban areas. Read More

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October 2017
8 Reads

The Influence of Eye Closure on Somatosensory Discrimination: A Trade-off Between Simple Perception and Discrimination.

Cereb Cortex 2017 06;27(6):3231-3239

Hans Berger Department of Neurology, Jena University Hospital, Erlanger Allee 101, 07747 Jena, Germany.

We often close our eyes to improve perception. Recent results have shown a decrease of perception thresholds accompanied by an increase in somatosensory activity after eye closure. However, does somatosensory spatial discrimination also benefit from eye closure? We previously showed that spatial discrimination is accompanied by a reduction of somatosensory activity. Read More

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June 2017
35 Reads

Corrigendum to "Magnetoencephalography signals are influenced by skull defects" [Clin. Neurophysiol. 125 (2014) 1653-1662].

Clin Neurophysiol 2017 06 23;128(6):1116. Epub 2017 Mar 23.

Institute of Biomedical Engineering and Informatics, Ilmenau University of Technology, P.O. Box 100565, D-98684 Ilmenau, Germany; Biomagnetic Center, Department of Neurology, Jena University Hospital, Erlanger Allee 101, D-07747 Jena, Germany.

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June 2017
1 Read

Monitoring fetal maturation-objectives, techniques and indices of autonomic function.

Physiol Meas 2017 May 10;38(5):R61-R88. Epub 2017 Feb 10.

Hans Berger Department of Neurology, Biomagnetic Center, Jena University Hospital, Jena 07747, Germany.

Monitoring the fetal behavior does not only have implications for acute care but also for identifying developmental disturbances that burden the entire later life. The concept, of 'fetal programming', also known as 'developmental origins of adult disease hypothesis', e.g. Read More

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May 2017
10 Reads
3 Citations
1.810 Impact Factor

Abnormal vocal behavior predicts executive and memory deficits in Alzheimer's disease.

Neurobiol Aging 2017 04 3;52:71-80. Epub 2017 Jan 3.

Speech Neuroscience Laboratory, Department of Otolaryngology - Head and Neck Surgery, University of California San Francisco, San Francisco, CA, USA; Biomagnetic Imaging Laboratory, Department of Radiology and Biomedical Imaging, University of California San Francisco, San Francisco, CA, USA. Electronic address:

Speakers respond automatically and rapidly to compensate for brief perturbations of pitch in their auditory feedback. The specific adjustments in vocal output require integration of brain regions involved in speech-motor-control in order to detect the sensory-feedback error and implement the motor correction. Cortical regions involved in the pitch reflex phenomenon are highly vulnerable targets of network disruption in Alzheimer's disease (AD). Read More

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April 2017
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Dermatomal Organization of SI Leg Representation in Humans: Revising the Somatosensory Homunculus.

Cereb Cortex 2017 09;27(9):4564-4569

Department of Biological and Clinical Psychology, Friedrich Schiller UniversityJena, D-07743, Germany.

Penfield and Rasmussen's homunculus is the valid map of the neural body representation of nearly each textbook of biology, physiology, and neuroscience. The somatosensory homunculus places the foot representation on the mesial surface of the postcentral gyrus followed by the representations of the lower leg and the thigh in superio-lateral direction. However, this strong homuncular organization contradicts the "dermatomal" organization of spinal nerves. Read More

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September 2017
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Resection of Motor Eloquent Metastases Aided by Preoperative nTMS-Based Motor Maps-Comparison of Two Observational Cohorts.

Front Oncol 2016 21;6:261. Epub 2016 Dec 21.

Department of Neurological Surgery, University of California San Francisco , San Francisco, CA , USA.

Introduction: Preoperative mapping of motor areas with navigated transcranial magnetic stimulation (nTMS) has been shown to improve surgical outcomes for peri-Rolandic lesions and, in particular, for gliomas. However, the impact of this technique on surgical outcomes for peri-Rolandic metastatic lesions is yet unknown.

Objective: To investigate the impact of nTMS on surgical outcomes for peri-Rolandic metastatic lesions, various clinical parameters were analyzed in our international study group. Read More

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December 2016
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The Processing of Somatosensory Information Shifts from an Early Parallel into a Serial Processing Mode: A Combined fMRI/MEG Study.

Front Syst Neurosci 2016 20;10:103. Epub 2016 Dec 20.

Hans Berger Department of Neurology, Jena University Hospital-Friedrich Schiller University JenaJena, Germany; Biomagnetic Center, Jena University Hospital-Friedrich Schiller University JenaJena, Germany.

The question regarding whether somatosensory inputs are processed in parallel or in series has not been clearly answered. Several studies that have applied dynamic causal modeling (DCM) to fMRI data have arrived at seemingly divergent conclusions. However, these divergent results could be explained by the hypothesis that the processing route of somatosensory information changes with time. Read More

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December 2016
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Numerical Investigation of Oxygenated and Deoxygenated Blood Flow through a Tapered Stenosed Arteries in Magnetic Field.

PLoS One 2016 12;11(12):e0167393. Epub 2016 Dec 12.

Department of Mechanical Engineering, Sanandaj Branch, Islamic Azad University, Sanandaj, Iran.

Current paper is focused on transient modeling of blood flow through a tapered stenosed arteries surrounded a by solenoid under the presence of heat transfer. The oxygenated and deoxygenated blood are considered here by the Newtonian and Non-Newtonian fluid (power law and Carreau-Yasuda) models. The governing equations of bio magnetic fluid flow for an incompressible, laminar, homogeneous, non-Newtonian are solved by finite volume method with SIMPLE algorithm for structured grid. Read More

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June 2017
3 Reads