polymers nanocomposites for sensor applications

... information on technology, structure, molecular dynamics and properties of thermoset nanocomposites, suitable for various engineering applications ix Thermoset Nanocomposites for Engineering Applications ... alternative for fibre-reinforced composites [58] Therefore, an ongoing trend is to combine the advantages of polymer nanocomposites and fibre-reinforced polymers to produce new reinforced plastics ... Preface Chapter Performance of Thermoset Nanocomposites - considers specific properties of thermoset nanocomposites of interests for engineering applications Experimental results for mechanical properties,...

Ngày tải lên: 04/06/2014, 15:17

... resulted in the formation of non-centrosymmetric nanostructures Preferential formation of trimers and higher oligomers was observed for ZnS and dimers or isolated particles for CdS and HgS nanocomposites ... research shows the great potential for magnetic-fluorescent nanocomposites as reagents for cell labelling, bioseparation and related applications Fluorescent-magnetic nanocomposites can be used to ... streptavidin-immobilised fluorescent-magnetic nanocomposites; fluorescent microscopy images of nanocomposites excited with a 980 nm laser; (a) image of chain-like structures formed by nanocomposites in the presence...

Ngày tải lên: 21/06/2014, 22:20

... SYNTHESIS OF WATER SOLUBLE SUPERPARAMAGNETIC NANOCOMPOSITES FOR BIOMEDICAL APPLICATIONS Erwin (B Eng., HONS.), NUS A THESIS SUBMITTED FOR THE DEGREE OF DOCTOR OF PHILOSOPHY (PH.D) DEPARTMENT ... hydrophobic nanoparticles system onto the aqueous phase, forming water-soluble nanocomposites For each approach, the synthesized hydrophilic nanocomposites colloidal stability (pH- or time-dependent) ... [66-70] Based on the aforementioned applications, magnetic nanoparticles can be functionally exploited for the combined cancer diagnostic and therapeutic (theranostics) applications [71-72] Ideally,...

Ngày tải lên: 09/09/2015, 11:31

... (Tg) that were unacceptable for dental applications or resulted in polymers that have high flexibility 2.7.2 Liquid Crystalline Monomers As the search for low-shrinking polymers continue, liquid ... octa(hydridodimethysiloxy)silsesquioxane, a polyhedral silsesquioxane nanostructured material, for use as a platform for subsequent nanocomposites syntheses developed for this research 4.2 Materials and Methods 4.2.1 Materials ... residual chloroform-d (CDCl3) as an internal standard for 1H and 13C and TMS (Tetramethylsilane) as external standard for 29Si NMR 4.2.3.2 Fourier Transform Infrared Spectroscopy Fourier Transform Infrared...

Ngày tải lên: 14/09/2015, 18:35

... Dental Nanocomposites Journal of Biomedical Research Part B Applied Biomaterials (Submitted for publication) Soh MS, AUJ Yap and A Sellinger, Silsesquioxanes-based Nanocomposites as Copolymers for ... developed into experimental nanocomposites (S1 – S4) by reinforcing with 63 wt% of commercial fillers The experimental nanocomposites (S1 – S4) were then vi characterized for their physico-mechanical ... Figure 5.22 SEC chromatogram for compound A 84 Figure 5.23 SEC chromatogram for compound B 84 Figure 5.24 SEC chromatogram for compound C 85 Figure 5.25 SEC chromatogram for compound D 85 Figure...

Ngày tải lên: 14/09/2015, 18:35

... the oscillation waveform when C3 = 100 pF and C4 = 47 pF Note that the voltage limit circuit adds distortion to the waveform of amplifier A2 In most sensor applications, waveform distortion is ... specification of the amplifiers is critical for oscillators that are used as sine wave references However, the shape of the waveform is not critical in most sensor applications because only the frequency ... consists of forming a coefficient array from N(s) Next, the procedure substitutes s = jωο for s, with the summation of the row set to zero If the row equation produces a non-trivial solution for ωο,...

Ngày tải lên: 11/01/2016, 14:30

... of nonelectrically deformable polymers are chemically activated polymers, shape-memory polymers, inflatable structures, light-activated polymers, magnetically activated polymers, and thermally ... developed for wide range of applications and for hydrodynamic propulsion Various swimming and flapping applications have been also been researched [36] 1.3.2.3 Conducting Polymers Conducting polymers ... special advantage for medical actuator applications such as catheters or for microactuators [57] Conducting polymers are considered a suitable material as a matrix for enzymes in biosensors, which...

Ngày tải lên: 14/03/2014, 14:20

... techniques, industrial microwave sensors, radar and magnetic field sensors Dr Knöchel is a Fellow of the IEEE for contributions to microwave systems and sensors for industrial process control” ... the Ph.D with honours from the former GerhardMercator University Duisburg in 1983 He was awarded for both degrees He then worked for Dräger in Lübeck for years before he returned to University ... (UWB) so interesting for research and emerging applications? What are the paradigm shifts and challenges for circuit and system design? What does it hold for new and pioneering applications? In order...

Ngày tải lên: 16/03/2014, 12:20

... temperature rise of the invivo sensors inside human bodies due to sensor processing and communication However, none of the three protocols accomplishes optimization for routings For example, simulations ... aware routing algorithms for embedded biomedical sensor networks,” in Proceedings of the 1st IEEE International Workshop on Intelligent Systems Techniques for Wireless Sensor Network in conjunction ... radiation However, this IR radiation also causes the temperature rise of the sensors Therefore, the number of times to recharge sensor batteries is preferably reduced by prolonging battery life as long...

Ngày tải lên: 22/06/2014, 06:20

... temperature rise of the invivo sensors inside human bodies due to sensor processing and communication However, none of the three protocols accomplishes optimization for routings For example, simulations ... aware routing algorithms for embedded biomedical sensor networks,” in Proceedings of the 1st IEEE International Workshop on Intelligent Systems Techniques for Wireless Sensor Network in conjunction ... radiation However, this IR radiation also causes the temperature rise of the sensors Therefore, the number of times to recharge sensor batteries is preferably reduced by prolonging battery life as long...

Ngày tải lên: 22/06/2014, 19:20

... of nonelectrically deformable polymers are chemically activated polymers, shape-memory polymers, inflatable structures, light-activated polymers, magnetically activated polymers, and thermally ... developed for wide range of applications and for hydrodynamic propulsion Various swimming and flapping applications have been also been researched [36] 1.3.2.3 Conducting Polymers Conducting polymers ... special advantage for medical actuator applications such as catheters or for microactuators [57] Conducting polymers are considered a suitable material as a matrix for enzymes in biosensors, which...

Ngày tải lên: 27/06/2014, 18:20

... which shows a general platform for a similar array has been constructed 16 New Polymers for Special Applications Figure A sensor array consisting of eight CHEMFETs, for more details look at (Polk, ... properly cited 4 New Polymers for Special Applications б  en (1) For intrinsic conductivity, n decreases exponentially with increasing band gap, since the conjugated polymers have relatively ... conducting polymers; hydrogel films on optical fiber core; thin film polymers; PDLC films application; photopolymers for holographic media; microwave absorption and EMI shielding behavior of nanocomposites...

Ngày tải lên: 28/06/2014, 10:20

... The following applications are described: (1) 3-DOF tactile sensor (2) Patterned sensor on an IPMC film Applications of Ionic Polymer-Metal Composites 229 9.2 Haptic Interface for Virtual Tactile ... (Spatial-temporal information) Skin structures Selective stimulation method Transmission of filtered information Alternative Stimuli FA I SA I FA II SA II Velocity sensor Pressure sensor Acceleration sensor ... of deformation of an IPMC strip was in proportion to the sensor output voltage and two kinds of velocity-sensing systems were proposed [28] One is a 3-DOF tactile sensor that has four IPMC sensor...

Ngày tải lên: 10/08/2014, 02:20

... near future For these reasons, it is meaningful to study methodologies for the effective use of such materials for manipulation with an eye to future applications A promising candidate for such ... finger They could perform Hz (129.0) (114.9) Hz Hz (97.7) (82.2) Hz -1 (*) : Average force for Hz [gf] -2 2.5 3.5 Amplitude of very-low frequency vibration [V] Figure 9.12 Pressure force vs driving ... is possible for the other elements to compensate for them This signifies insensitivity to environmental fluctuation In human bodies, for example, excretion of alien substances is performed by a...

Ngày tải lên: 10/08/2014, 02:20

... groove to the depth to be isolated using a cutter for acrylic resin board Sensor output Actuator input IPMC sensor IPMC actuator Leaser Displacement Sensor Bending Figure 9.39 Patterned IPMC Figure ... stimuli The 3-DOF tactile sensor can detect both the velocity and the direction of motion of the center pole by calculating from the four outputs of the IPMC sensors The four sensors, however, have ... in the IPMC sensor itself and structural differences in the manufacturing process In this study, the four sensor outputs were calibrated by the mean of the peak-to-peak value of sensor outputs...

Ngày tải lên: 10/08/2014, 02:20

... of nonelectrically deformable polymers are chemically activated polymers, shape-memory polymers, inflatable structures, light-activated polymers, magnetically activated polymers, and thermally ... School of Information Sciences Tohoku University Sendai Japan British Library Cataloguing in Publication Data Electroactive polymers for robotic applications : artificial muscles and sensors 1.Actuators ... active polymers are briefly described and thoroughly reviewed in cited references Also, some of the most recent developments for certain polymers are presented Some of the applications of active polymers...

Ngày tải lên: 10/08/2014, 02:20

... developed for wide range of applications and for hydrodynamic propulsion Various swimming and flapping applications have been also been researched [36] 1.3.2.3 Conducting Polymers Conducting polymers ... special advantage for medical actuator applications such as catheters or for microactuators [57] Conducting polymers are considered a suitable material as a matrix for enzymes in biosensors, which ... use electrical energy, is driving the quest for the development of a wide range of active polymers These polymers are popularly called electroactive polymers (EAPs), and an overview of various...

Ngày tải lên: 10/08/2014, 02:20

... metals, ceramics, or other polymers (linear or highly cross-linked polymers) can be stretched reversibly for only about 1% Above this level, they undergo permanent deformation in an irreversible ... exfoliated nanocomposites give the highest modulus value is also demonstrated in these silicone nanocomposite elastomer systems; 55 kPa for silicone, 88 kPa for a Na+-MMT nanocomposite, and 72 kPa for ... the field of sensors and actuators For instance, the efficacy of control algorithms or information handling of the current cutting-edge robots is often constrained by actuator performance, sensing...

Ngày tải lên: 10/08/2014, 02:20

... may not be constant but in the form of an equation Robotic Applications of Artificial Muscle Actuators 59 Figure 3.7 Lumped mass model for left half of actuator For example, the equivalent viscous ... K ( x ) g e E ( x , VL , VR ) (3.7) where Mx is the inertial force, B(x) represents the damping force, and F (t ) denotes external forces K ( x) and E ( x, VL , VR ) are obtained from Eqs (3.5) ... restoration force caused by prestretching, whereas f ( x,V ) represents an electrostatic force as a function of the displacement x and the applied voltage V Consequently, the resultant force on...

Ngày tải lên: 10/08/2014, 02:20

... and only a pure compressive force induced by the Maxwell stress should be used for actuation For the first step of the nonprestrained actuator design, the amount of deformation of the dielectric ... (3.28) (3.29) a Dielectric elastomer Compression force a Expansion force Frame Reaction force (a) initial state (b) actuated state b=a(1+ a h a r (c) deformed state Figure 3.27 Basic operating concept ... experiences a force in the direction of the applied field and the negative charge experiences an equal force in the opposite direction Consequently, the net force on the dipole is zero; therefore, the...

Ngày tải lên: 10/08/2014, 02:20