Business Emirates # 14 (May - June 2007) - page 116

Description
Magneto-Cardio-Graphy (MCG) as a contact-
freemeasurementmethod is anexcellent tool
toperform studies for early recognition, precise
diagnostics andmonitoringof heart diseases.
Theelectrophysiological behavior of the
heartmaybe altered indisease anddrug inter-
vention, presumablyby changes in individual ion
currents or disease-induced increased ion chan-
nel density. Duringmyocardial activation and
recovery there is a flowof ions, which creates
changes of electrical andmagnetic field around
theheart. Theheartsmagnetic field is exquisitely
sensitive to anisotropy ratios in the cardiac tissue.
Therefore,magnetic imagingof cardiac action
currents is an ideally suited technique for testing
theheterogeneity, thus elucidating theeffects
of anisotropy in spreadof action currents.
InnovativeAspect andMainAdvantages
MCG is modern imaging and quantita-
tive analysis technique for detection abnor-
mal difference in electrophysiological car-
diac phenomena
STAGEOFDEVELOPMENT:
SYSTEM ISREADYFOR
APPLICATION.
WELOOKFORWARD
TO INTERNATIONAL
COLLABORATIONFORCLINICAL
TRIALSANDFORPRODUCTION
STAGEOFDEVELOPMENT:
PROTOTYPEAVAILABLEFOR
TESTING
MEDICAL
INSTRUMENTATION
ANDBIOMEDICAL
TECHNOLOGIES
SUPER-SENSITIVEMAGNETO-
CARDIOGRAPHICSYSTEMFOREARLY
RECOGNITION, PRECISEDIAGNOSTICS
ANDMONITORINGOFHEARTDISEASES
MCG is non-invasive and informative
methods which could be effectively used a
variety spectrum of clinical setting.
It is a useful tool for screening diag-
nostics andmay be used in unshielded
environment.
Areas of Application
MCG can be used for noninvasive
diagnosis of cardiac events related to:
- coronary arterydisease (CAD),
- safetyof allmedical drugswith
respect to thedrugs potential to
cause heart arrhythmia,
- early detectionof graft rejection
after cardiac transplantation,
- pathophysiological role and
therapeuticpotential of stem cells.
Fig.1Supersensitive MCG-system (CardioMagScan)
NEWMATERIALSANDNANOTECHNOLOGY
Description
At present one of themost important
directions in solving the problem of of
superhardmaterials development with quali-
tatively and quantitatively new complex of
physico-mechanical properties is the use
of nanodispersedmaterials as the initial
ones. Under adequate conditions a unique
complex of mechanical properties, e.g., a
combination of very high hardness and frac-
ture toughness, can be realized in a nanodis-
persed polycrystal.
DIAMONDPOLYCRYSTALNANO-
COMPOSITESFOR INDUSTRY
In developmentofproduction technologiesof
novel superhardmaterialsusing initial nanomateri-
als, retentionof thematerial nanodispersed state
in thecourseof sintering isan importantproblem.
Inaddition, one should remember thatmechanical
propertiesarehighly structure-sensitive,which is
particularlydistinct inusingnanomaterials.
Conditionsofpreparative treatmentofdia-
mondnanopowders, and their effectivecompact-
ing, beforea sintering includingatheightened
temperature, , havebeendeveloped. Effectofprior
compactingconditionsonprocessof obtaining
ofqualitativepolycrystalsby sinteringhasbeen
studied.Thermobaricconditionsofproductionof
polycrystalmaterialsbasedondiamondpowdersof
nanometric rangehavebeen investigatedandopti-
mized.Theobtained resultshaveallowed todevel-
opoptimumconditions of toolmaterialsbasedon
thediamondnanopowdersproduction.
BUSINESS EMIRATES
116
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