Fluidic Bypass Structures for Improving the Robustness of Liquid Scanning Probes

Conclusion: The presented passive design element counters both failure modes in a simple and highly compatible manner. Significance: Liquid scanning probes enabling targeted interfacing with biological surfaces are compatible with a wide range of workflows and bioanalytical applications. An improved operational robustness would facilitate rapid and widespread adoption of liquid scanning probes in research as well as in diagnostics.
Source: IEEE Transactions on Biomedical Engineering - Category: Biomedical Engineering Source Type: research

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Publication date: December 2019Source: NeuroImage, Volume 203Author(s): Javier Bernacer, Ivan Martinez-Valbuena, Martin Martinez, Nuria Pujol, Elkin O. Luis, David Ramirez-Castillo, Maria A. PastorAbstractWhen humans make decisions, objective rewards are mainly discounted by delay, risk and effort. Whereas recent research has demonstrated that several brain areas process costs and code subjective value in effort-based decision making, it remains obscure how neural activity patterns change when effort costs are reduced due to the acquisition of healthy habits, such as moving from sedentary to active lifestyles. Here, a samp...
Source: NeuroImage - Category: Neuroscience Source Type: research
This study was designed to compare the fit of restorations obtained by means of a direct or indirect digital workflow. The values reported on the maximum acceptable gap in scientific literature range from 50 to 200 μm, so there does not seem to be an objective limit based on scientific evidence. According to the most accepted marginal discrepancy in the literature, most of the values of the studies examined are in the 200 μm acceptability range. Within the limitations of this systematic review, computer-aided design and computer-aided manufacturing (CAD/CAM) fabricated restorations obtained by means of an intraoral s...
Source: Journal of Biological Regulators and Homeostatic Agents - Category: Biomedical Science Tags: J Biol Regul Homeost Agents Source Type: research
Authors: DENTAL SUPPLEMENT, Barlattani A, Lio F, Agrestini C, Di Girolamo M Abstract The use of digital tools offers a new perspective to daily clinical activities even though sometimes different clinical approaches are necessary. This case report of a maxillary anterior rehabilitation demonstrates the application of a gingival displacement technique to enhance the recording of subgingival finish line by means of an intraoral optical scanner (IOS). The temporary restoration was used as a guide for the radiosurgery tip in order to displace the gingiva in a guided and mini-invasive approach. It was then possible to c...
Source: Journal of Biological Regulators and Homeostatic Agents - Category: Biomedical Science Tags: J Biol Regul Homeost Agents Source Type: research
This study is to compare the cleaning effectiveness of two Ni-Ti files systems. Thirty single-rooted human teeth were selected and two NiTi rotary systems were used. Group A: canal shaping with ProTaper® Universal (Dentsply Tulsa Dental Specialties, Tulsa, OK) (PTU); Group B: (n=15) canal shaping with Mtwo Ni-Ti instruments (Sweden and Martina, Padova, Italy) and apical finishing with Mtwo Apical Ni-Ti instruments (Sweden and Martina, Padova, Italy). The amount of debris and smear layer were quantified on a basis of a numerical evaluation scale. The data established for scoring the debris and the smear layer was record...
Source: Journal of Biological Regulators and Homeostatic Agents - Category: Biomedical Science Tags: J Biol Regul Homeost Agents Source Type: research
Authors: DENTAL SUPPLEMENT, Campanella V, Carosi P, Casella S, Pinto A, Di Girolamo M Abstract Customization of post-and-cores using computer-aided-design and computer-aided-manufacturing (CAD-CAM) requires the scanning of a pattern and the subsequent digital design. This case report describes the production of a CAD-CAM customized post-and-core designed from an intraoral scan and milled from a metal block. The use of an intraoral scanner (IOS) for post-endodontic rehabilitation could lead to a faster and more efficient CAD-CAM customized post-and-core realization. The use of a high resistance material such as meta...
Source: Journal of Biological Regulators and Homeostatic Agents - Category: Biomedical Science Tags: J Biol Regul Homeost Agents Source Type: research
Publication date: Available online 21 September 2019Source: Food HydrocolloidsAuthor(s): Saman Sabet Ghadam Haghighi, Chris K. Seal, Peter J. Swedlund, Duncan J. McGillivrayAbstractDepositing alginate on the surface of bilayer emulsions (with protein as the primary and polysaccharide as the secondary layer) is believed to improve its functionality, including: stability, storage-ability, retention, and release profile of encapsulated compounds. Recent literature has shown that polysaccharides with a higher charge density might displace polysaccharides with a lower charge density previously coated on the oil droplets and dro...
Source: Food Hydrocolloids - Category: Food Science Source Type: research
Publication date: Available online 20 September 2019Source: Biosensors and BioelectronicsAuthor(s): Youjun Zeng, Jie Zhou, Xueliang Wang, Zhiwen Cai, Yonghong ShaoAbstractThis paper, for the first time, presents a wavelength-scanning surface plasmon resonance microscope (WS-SPRM) as a label-free biosensor capable of measuring cell-substrate interaction. The approach utilized a liquid crystal tunable filter (LCTF) as a fast and flexible wavelength-scanning device that can implement a wavelength-scanning and SPR imaging cycle within 1 s. The system was verified by monitoring the dynamics of cellular processes including cel...
Source: Biosensors and Bioelectronics - Category: Biotechnology Source Type: research
Publication date: Available online 20 September 2019Source: MicronAuthor(s): Peng ZhangAbstractThe accurate size measurement has been necessary in modern nanotechnology /semiconductor industry. Based on a sophisticated Monte Carlo scanning electron microscope simulation tool, gold nanorods and the silicon trapezoidal line, two commonly used nanostructures, were studied for aspect ratio and linewidth measurements, respectively. Accurate measurement for aspect ratio is significant for the optical property of gold nanorods. This work adopted an image-based method with a Monte Carlo simulation to obtain an accurate value of th...
Source: Micron - Category: Biology Source Type: research
Publication date: Available online 20 September 2019Source: MicronAuthor(s): Gwangyeob Lee, Juyoung Jeong, Felix Schwarzhuber, Josef Zweck, Jeehoon Kim, Hyang Kim Do, Hye Jung ChangAbstractDifferential phase-contrast (DPC) imaging in the scanning transmission electron microscopy (STEM) mode has been suggested as a new method to visualize the nanoscale electromagnetic features of materials. However, the quality of the DPC image is very sensitive to the electron-beam alignment, microscope setup, and specimen conditions. Unlike normal STEM imaging, the microscope setup variables in the DPC mode are not independent; rather, th...
Source: Micron - Category: Biology Source Type: research
Publication date: Available online 20 September 2019Source: Sensors and Actuators B: ChemicalAuthor(s): A.M. Fekry, M. Shehata, S.M. Azab, A. WalcariusAbstractCaffeine (Caf) is one of the most widespread compounds in food components, beverages and medicines, which drives us to find a simple, fast and convenient method for its determination. The promising Nano-Cobalt (II, III) oxide modified carbon paste (NCOMCP) sensor was fabricated and applied to the sensitive determination of Caf in both aqueous (0.01 mol L-1 H2SO4) and micellar media (0.5 mmol L-1 sodium dodecylsulfate, SDS). Surface characterization was ...
Source: Sensors and Actuators B: Chemical - Category: Chemistry Source Type: research
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