enzyme immobilization in biodegradable polymers for biomedical applications

... fluorescence in rat brain after i.v injection of fluorescent dextran loaded NPs (Sun, et al,2004) significant increase in brain uptake in in vitro cell line experiment & in situ brain perfusion ... growth in the brain It can be divided into two categories: the primary brain cancer which is originated within the brain and the secondary brain cancer which is originated from cells in other ... developed to act as in vitro BBB model At present, there are more than 15 different cell line models, including immortalized bovine BEC lines, porcine BEC lines, murine cell lines, primary rat...

Ngày tải lên: 26/11/2015, 22:41

... Slew Rate Oscillating Flow Other MEMS Applications Micromachined Neurowell neuron trapping canopy grillwork neurite growing in micro-tunnel 30 µm gold electrode full-grown cell in neuron well Spontaneous ... Micromachines, MicroRobots Machine Size Quantity Micromachines (MEMS) Conventional Machines Molecular (Nano) Machines nm µm mm m km Pressure Sensors 200 µm Nitride diaphragm Poly strain gauges ... electrode Caltech Micromachining Group 1250 V 15 µm 15 µm On the Microbat Flying Onithopter Transceiver Antenna MEMS Wings Wing Control Actuators Acoustic Sensor Arrays CMOS Imaging Array Autopilot...

Ngày tải lên: 22/12/2013, 21:17

... providing accurate positioning PPAMs provide safe machine-man interaction By using the right material, the material deformation can be eliminated while getting high tensile forces Depending on ... rates Various applications for conducting polymer actuators being considered by researchers include actuators for micromachining and micromanipulation, microflaps for aircraft wings, micropumps, ... formed, by definition A gel cannot be fractured without breaking chemical bonds Therefore, the strength is higher at the gel point, but it does not increase indefinitely with more cross-linking...

Ngày tải lên: 14/03/2014, 14:20

... Metals for biomedical applications In: Fazel R, editor Biomedical Engineering- From Theory to Applications Rijeka: In Tech; (2011) , 411-430 Biomedical Applications of Materials Processed in Glow ... chain consisting of two molecules, b) chain consisting of eight molecules In dashed areas the collapsed chains are shown enlarged 2.3 1D water molecule chain Finally, we investigated the chain ... titanium-bone cell interface in vitro: the role of the surface in promoting osteoin tegration In: Brunette DM, Tengvall P, Textor M, Thomsen P, editors Titanium in Medicine Berlin: Springer; (2001)...

Ngày tải lên: 17/03/2014, 02:20

... composite electrode appealing for biosensing applications when used in combination with oxidase and dehydrogenase enzymes Including either glucose oxidase or alcohol dehydrogenase in the composite turned ... incorporating proteins in the polymer component Protein incorporation is an improved step towards biocompatible sensors and assemblies The nanowires were made using anodic alumina templates in ... differences in kinetic and mechanical behavior of the nanowires that are relevant to their use in sensors and self-assembling structures The proteins avidin and streptavidin were introduced into the...

Ngày tải lên: 20/03/2014, 13:05

... applications 1.2.5 Inkjet printing Inkjet printer creates images or texts by propelling ink droplets onto paper or overhead transparencies The concept of inkjet printing originated in the early 1980s ... adapted for printing of liquid-phase polymers other than inks Much effort has been made in accurate deposition of tiny quantities of polymers to turn it into a versatile tool for manufacturing processes ... MEMS for biomedical applications, as biomedical applications provide the perfect platform for integrating complex design and fabrication of articulation, recording and assistive systems with integrated...

Ngày tải lên: 28/04/2014, 11:29

... processing of fixed tissue samples, these techniques allow for the imaging of live and intact organisms both in vivo and in vitro, resulting in a more realistic picture of the processes occurring in ... possessing fluorescent and magnetic properties may be used in a number of biomedical applications in nanobiotechnology, such as bioimaging, bio- and chemo-sensing, cell tracking and sorting, bioseparation, ... staining for microglia and macrophages in rhodamine channel; (d) overlay of (a) and (c); (e) overlay of (a) and (b) Cy5.5-CLIO is internalised predominantly by microglial cells and in ltrating...

Ngày tải lên: 21/06/2014, 22:20

... worth pointing out that dealing with stereo data introduces a new perspective; in fact instead of dealing with quality assessment we should refer to quality of experience Indeed, since 3D involves ... employed fusion methods However, in the metric design in [15] no information about the depth perception was taken into account As outlined in Section 2, the lack of depth information can lead to discrepancy ... perception [24] Therefore, in this paper, we take this fact into account and, starting from the metric designed in [15], we investigate the amount of information added, if any, into the quality assessment...

Ngày tải lên: 22/06/2014, 00:20

... and Video Processing for their effort in the preparation of this special issue We hope that this issue will allow you to get an insight in the recent advances on object tracking for video surveillance ... datasets for the evaluation and comparison of algorithms that will in turn favor progress in the domain To conclude, we would like to thank the authors for their submissions, the reviewers for their ... performance measures for target tracking that estimate the object localization precision and the accuracy of the results, and evaluate them on a series of multiple object tracking results Finally,...

Ngày tải lên: 22/06/2014, 00:20

... entrapped in dendrimer grafts In vitro studies, release rate was examined across cellulose tubing in PBS, and in vivo studies release rates were performed in albino rats by determining the amount ... observed for procain hydrochloride Sot and coworkers (2005) investigated the behaviour of N–hexadecanoyl sphingosine (Cer16), N–hexanoylsphingosine (Cer6) and N–acetyl sphingosine (Cer2) ceramides in ... containing a lactose residue, which was used to form liposomes for gene delivery into tissues (using 14 C-adenosine-labeled or plasmid DNA), expressed the affinity of corresponding lipoplexes for...

Ngày tải lên: 27/06/2014, 10:20

... providing accurate positioning PPAMs provide safe machine-man interaction By using the right material, the material deformation can be eliminated while getting high tensile forces Depending on ... rates Various applications for conducting polymer actuators being considered by researchers include actuators for micromachining and micromanipulation, microflaps for aircraft wings, micropumps, ... formed, by definition A gel cannot be fractured without breaking chemical bonds Therefore, the strength is higher at the gel point, but it does not increase indefinitely with more cross-linking...

Ngày tải lên: 27/06/2014, 18:20

... Herein, this nonuniformity of surfactant binding increases with the cooperativity of binding in the presence of a salt Thus, it was predicted that the progress of surfactant binding within the ... constructing different devices and as discriminating layers in electronic chemical sensors In both cases, interacting with surrounding gases is vital It can possibly determine the performance ... usability of the conducting polymers in the two kinds of electronic applications mentioned above Electronic Chemical Sensors for gases are thought of to be at the top of gaining the information related...

Ngày tải lên: 28/06/2014, 10:20

... Display Using ICPF Actuators Haptic interfaces for presenting human tactile feel were developed using IPMC actuators [14–17] To express delicate tactile feel including even qualitative information ... nerve system Tactile perception = Relationship of information from several kinds of receptors = Decoding and combining of original spatial-temporal information Figure 9.6 Concept of selective stimulation ... the average input power is increased in the case of Cs+, the walking speed is not increased because the walking pattern is not proper and the energy dissipated in a collision is increased 216...

Ngày tải lên: 10/08/2014, 02:20

... distributed for applying the driving force The distributed drive is also desirable from the viewpoint of robust manipulation Even if there are elements that cannot generate appropriate force, in principle, ... 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 whipping ... technique for creating the various shapes in the gel material required for the actuator It is also important for supplying electricity efficiently Figure 9.17 Distributed actuation device consisting...

Ngày tải lên: 10/08/2014, 02:20

... Mechanical Engineers, Vol C-63, No 611, pp 2345-2350, 1997 (in Japanese) [23] Firoozbakhsh K., M Shahinpoor, and M Shavandi, “Mathematical modeling of ionicinteractions and deformation in ionic polymer-metal ... generalized in the following form by including the IPMC relaxation phenomenon commonly observed after a quick bending towards an anode This generalization can be accomplished by adding one zero ... used to formulate the equations, and the bending moment applied in each segment is assumed to be proportional to the bending curvature determined from the simple first-order model The modeling steps...

Ngày tải lên: 10/08/2014, 02:20

... providing accurate positioning PPAMs provide safe machine-man interaction By using the right material, the material deformation can be eliminated while getting high tensile forces Depending on ... material [16] Shape-memory polymers (SMPs) are finding applications in varied fields from deploying objects in space to manufacturing dynamic tools [16] The versatile Active Polymers: An Overview ... programmed into a wound stitch, stretching to form thin fibers This fiber is then heated above the transition temperature of the material inducing permanent deformation in the material sealing the...

Ngày tải lên: 10/08/2014, 02:20

... rates Various applications for conducting polymer actuators being considered by researchers include actuators for micromachining and micromanipulation, microflaps for aircraft wings, micropumps, ... resistance and increases current densities, giving faster actuation IPMCs are being developed for wide range of applications and for hydrodynamic propulsion Various swimming and flapping applications ... field, the induced dipole moments cause the particles to form chains in the directions of the field, forming complex anisotropic structures During this process, the viscosity of the fluid increases...

Ngày tải lên: 10/08/2014, 02:20

... formed, by definition A gel cannot be fractured without breaking chemical bonds Therefore, the strength is higher at the gel point, but it does not increase indefinitely with more cross-linking ... through-thickness strain sz can be converted to in- plane strain by solving the quadratic equation for the strain constraint as sx (1 sz ) 0.5 (2.7) For low strain materials, the elastic strain energy density ... the polymer intrinsically deforms either in expanding or in contracting when electrical voltage is applied to the electrodes Basic principle actuation mechanisms are well explained in many publications...

Ngày tải lên: 10/08/2014, 02:20

... breaking the initial strain force balance Out HV DC/DC Out In HV DC/DC In Out HV DC/DC Out In HV DC/DC In + + Out HV DC/DC Out In HV DC/DC In + + Kc Out HV DC/DC Out In HV DC/DC In Kc

Ngày tải lên: 10/08/2014, 02:20