scholarly journals Magnetic Polymers for Magnetophoretic Separation in Microfluidic Devices

2021 ◽  
Vol 7 (7) ◽  
pp. 100
Author(s):  
Lucie Descamps ◽  
Damien Le Roy ◽  
Caterina Tomba ◽  
Anne-laure Deman
Keyword(s):  
State Of The Art ◽  
Microfluidic Devices ◽  
Large Field ◽  
Magnetic Composite ◽  
Promising Alternative ◽  
Magnetic Forces ◽  
Field Gradients ◽  
Composite Polymers ◽  
Magnetophoretic Separation ◽  
Fabrication Costs

Magnetophoresis offers many advantages for manipulating magnetic targets in microsystems. The integration of micro-flux concentrators and micro-magnets allows achieving large field gradients and therefore large reachable magnetic forces. However, the associated fabrication techniques are often complex and costly, and besides, they put specific constraints on the geometries. Magnetic composite polymers provide a promising alternative in terms of simplicity and fabrication costs, and they open new perspectives for the microstructuring, design, and integration of magnetic functions. In this review, we propose a state of the art of research works implementing magnetic polymers to trap or sort magnetic micro-beads or magnetically labeled cells in microfluidic devices.

Microfluidic devices based on textile threads for analytical applications: state of the art and perspectives

2021 ◽  
Author(s):  
Deonir Agustini ◽  
Fabio Roberto Caetano ◽  
Reverson Fernandes Quero ◽  
Jose Alberto Fracassi da Silva ◽  
MF Bergamini ◽  
...  
Keyword(s):  
State Of The Art ◽  
Microfluidic Devices ◽  
Analytical Applications ◽  
Inorganic Substrates

Microfluidic devices based on textile threads have interesting advantages when compared to systems made with traditional materials, such as polymers and inorganic substrates (especially silicon and glass). One of these...

Special Feature — Medical Device

2005 ◽  
Vol 09 (21) ◽  
pp. 1120-1146
Keyword(s):  
Cell Separation ◽  
State Of The Art ◽  
Blood Pressure Monitoring ◽  
Microfluidic Devices ◽  
Molecular Diagnostic ◽  
Pressure Monitoring ◽  
Contract Manufacturing ◽  
Separation Technology ◽  
Biomedical Device ◽  
Biosensor Device

AmpliChip CYP450 Test—An Important Step Forward in Making Personalized Medicine a Reality.Automating and Miniaturizing Molecular Diagnostic on a BioChip.Blood Pressure Monitoring: State-Of-the-Art: BPro.Nanobiotechnologies to Provide a Portable Genetic Biosensor Device.Inzign–A Singapore-based Company with Biomedical Device Contract Manufacturing Ambitions.Technical Paper on Microfluidic Devices—Cell Separation Technology.

scholarly journals Stability of Magneto-optical Traps with Large Field Gradients: Limits on the Tight Confinement of Single Atoms

1997 ◽  
Vol 78 (9) ◽  
pp. 1660-1663 ◽  
Author(s):  
P. A. Willems ◽  
R. A. Boyd ◽  
J. L. Bliss ◽  
K. G. Libbrecht
Keyword(s):  
Optical Traps ◽  
Large Field ◽  
Single Atoms ◽  
Field Gradients

scholarly journals FRP REINFORCEMENT FOR CONCRETE STRUCTURES: STATE-OF-THE-ART REVIEW OF APPLICATION AND DESIGN

2014 ◽  
Vol 5 (4) ◽  
pp. 147-158 ◽  
Author(s):  
Eugenijus Gudonis ◽  
Edgaras Timinskas ◽  
Viktor Gribniak ◽  
Gintaris Kaklauskas ◽  
Aleksandr K. Arnautov ◽  
...  
Keyword(s):  
Material Properties ◽  
Structural Engineering ◽  
State Of The Art ◽  
Concrete Structures ◽  
Fiber Reinforced Polymers ◽  
Reinforced Polymers ◽  
Promising Alternative ◽  
Frp Composites ◽  
Structural Problems ◽  
Concrete Elements

Fiber reinforced polymers (FRPs) are considered to be a promising alternative to steel reinforcement, especially in concrete structures subjected to an aggressive environment or to the effects of electromagnetic fields. Although attempts to develop effective reinforcement have been followed, the application of FRPs remains limited by the solution to simple structural problems that mainly appear due to the absence of design codes, significant variation in the material properties of FRP composites and limited knowledge gained by engineers as regards the application aspects of FRP composites and structural mechanics of concrete elements reinforced with FRPs. To fill the latter gap, the current state-of-the-art report is dedicated to present recent achievements in FRPs applying practice to a broad engineers’ community. The report also revises the manufacturing process, material properties, the application area and design peculiarities of concrete elements reinforced with FRP composites. Along the focus on internal reinforcement, the paper overviews recent practices of applying FRP reinforced concrete (RC) elements in structural engineering. The review highlights the main problems restricting the application of FRPs in building industry and reveals the problematic issues (related to the material properties of the FRP) important for designing RC following the formulation of targets for further research.

Enrichment of magnetic particles using temperature and magnetic field gradients induced by benchtop fabricated micro-electromagnets

Lab on a Chip ◽  
2017 ◽  
Vol 17 (23) ◽  
pp. 4097-4104 ◽  
Author(s):  
A. Hosseini ◽  
D. N. Philpott ◽  
L. Soleymani
Keyword(s):  
Magnetic Field ◽  
Magnetic Particles ◽  
Magnetic Forces ◽  
Field Gradients ◽  
Magnetic Field Gradients

Cooperation of thermal and magnetic forces used to drive and capture magnetic particles inside microsystems.

scholarly journals Zygomatic Implant: State of the Art

2021 ◽  
pp. 42-49
Author(s):  
Henrique Esteves Magalhães ◽  
Priscilla Janaína de Lima Borelli Bovo ◽  
Luciano Rodrigues Neves ◽  
Marcelo Henrique Batista Santos ◽  
Rogério Luiz de Araújo Vian ◽  
...  
Keyword(s):  
Systematic Review ◽  
Bone Graft ◽  
Dental Implant ◽  
State Of The Art ◽  
Therapeutic Option ◽  
Cochrane Library ◽  
Promising Alternative ◽  
Atrophic Maxilla ◽  
Zygomatic Implants ◽  
Zygomatic Implant

Introduction: In the dental implant scenario, the rehabilitation of the maxilla severely reabsorbed with endosseous implants remains a challenge. There are less aggressive alternatives, including short implants, inclined implants, and especially zygomatic (ZI) implants. In cases where the height and width of the residual bone do not allow the placement of conventional dental implants, the ZI can be considered. Objective: Conducted a concise systematic review to analyze the main literary findings on the use of the zygomatic implant as an important alternative for a dental implant, to present the state of the art to the dental community. Methods: The present study followed a concise systematic review model. The search was carried out in the PubMed, Embase, Ovid, Cochrane Library, Web Of Science, and Scopus databases. The quality of the studies was based on the GRADE instrument and the risk of bias was analyzed according to the Cochrane instrument. Results and Conclusion: Zygomatic implants appear to be a consolidated therapeutic option for significantly atrophic maxilla, offering a promising alternative to costly heavy bone graft techniques, fewer complications, less time for rehabilitation, less required prosthodontic work, and significantly higher survival rates. Thus, the zygomatic implant is revolutionizing the implant procedure in the posterior atrophic maxilla, eliminating the complications of bone augmentation and sinus elevation, with delayed healing, showing better clinical results compared to the bone graft, pointing to a possible gold standard for a dental implant.

scholarly journals State of the Art of Natural Killer Cell Imaging: A Systematic Review

Cancers ◽  
2019 ◽  
Vol 11 (7) ◽  
pp. 967 ◽  
Author(s):  
Varani ◽  
Auletta ◽  
Signore ◽  
Galli
Keyword(s):  
Nuclear Medicine ◽  
Nk Cells ◽  
Natural Killer ◽  
Cell Imaging ◽  
Nk Cell ◽  
State Of The Art ◽  
Killer Cell ◽  
Diagnostic Tools ◽  
Lower Sensitivity ◽  
Promising Alternative

Natural killer (NK) cell therapy is a promising alternative to conventional T cell-based treatments, although there is a lack of diagnostic tools to predict and evaluate therapeutic outcomes. Molecular imaging can offer several approaches to non-invasively address this issue. In this study, we systematically reviewed the literature to evaluate the state of the art of NK cell imaging and its translational potential. PubMed and Scopus databases were searched for published articles on the imaging of NK cells in humans and preclinical models. Study quality was evaluated following Quality Assessment of Diagnostic Accuracy Studies (QUADAS-2) criteria. We pooled studies as follows: Optical, magnetic resonance imaging (MRI) and nuclear medicine imaging with a total of 21 studies (n = 5, n = 8 and n = 8, respectively). Considering the limitation of comparing different imaging modalities, it appears that optical imaging (OI) of NK cells is very useful in a preclinical setting, but has the least translational potential. MRI provides high quality images without ionizing radiations with lower sensitivity. Nuclear medicine is the only imaging technique that has been applied in humans (four papers), but results were not outstanding due to a limited number of enrolled patients. At present, no technique emerged as superior over the others and more standardization is required in conducting human and animal studies.

Lead telluride-based far-infrared photodetectors – a promising alternative to doped Si and Ge

2001 ◽  
Vol 692 ◽  
Author(s):  
Dmitriy Dolzhenko ◽  
Ivan Ivanchik ◽  
Dmitriy Khokhlov
Keyword(s):  
State Of The Art ◽  
Lead Telluride ◽  
Far Infrared ◽  
Photon Radiation ◽  
Submillimeter Wavelength ◽  
Promising Alternative ◽  
Group Iii ◽  
Physical Features ◽  
Fast Quenching ◽  
Physical Principles

AbstractDoping of the lead telluride and related alloys with the group III impurities results in appearance of unique physical features of the material, such as persistent photoresponse, enhanced responsive quantum efficiency (up to 100 photoelectrons/incident photon), radiation hardness and many others. We review physical principles of operation of the photodetecting devices based on the group III-doped IV-VI including possibilities of fast quenching of the persistent photoresponse, construction of a focal-plane array, new readout technique, and others. Comparison of performance of the state of the art Ge(Ga) and Si(Sb) photodetectors with their lead telluride-based analogs shows that the responsivity of PbSnTe(In) photodetectors is by several orders of magnitude higher. High photoresponse is detected at the wavelength 116 micrometers in PbSnTe(In), and it is possible that the photoconductivity spectrum covers all the submillimeter wavelength range.

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