The Experts below are selected from a list of 78 Experts worldwide ranked by ideXlab platform
Abraham P. Lee - One of the best experts on this subject based on the ideXlab platform.
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High-efficiency single cell encapsulation and size selective capture of cells in picoliter droplets based on Hydrodynamic micro-vortices.
Lab on a chip, 2017Co-Authors: Gopakumar Kamalakshakurup, Abraham P. LeeAbstract:Single cell analysis has emerged as a paradigm shift in cell biology to understand the heterogeneity of individual cells in a clone for pathological interrogation. Microfluidic droplet technology is a compelling platform to perform single cell analysis by encapsulating single cells inside picoliter-nanoliter (pL-nL) volume droplets. However, one of the primary challenges for droplet based single cell assays is single cell encapsulation in droplets, currently achieved either randomly, dictated by Poisson statistics, or by Hydrodynamic Techniques. In this paper, we present an interfacial Hydrodynamic Technique which initially traps the cells in micro-vortices, and later releases them one-to-one into the droplets, controlled by the width of the outer streamline that separates the vortex from the flow through the streaming passage adjacent to the aqueous-oil interface (dgap). One-to-one encapsulation is achieved at a dgap equal to the radius of the cell, whereas complete trapping of the cells is realized at a dgap smaller than the radius of the cell. The unique feature of this Technique is that it can perform 1. high efficiency single cell encapsulations and 2. size-selective capturing of cells, at low cell loading densities. Here we demonstrate these two capabilities with a 50% single cell encapsulation efficiency and size selective separation of platelets, RBCs and WBCs from a 10× diluted blood sample (WBC capture efficiency at 70%). The results suggest a passive, Hydrodynamic micro-vortex based Technique capable of performing high-efficiency single cell encapsulation for cell based assays.
Edyta Jaworska - One of the best experts on this subject based on the ideXlab platform.
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Hydrodynamic maxillary sinus lift Technique with immediate implant placement: a review of new Techniques and a presentation of clinical cases
2015Co-Authors: Edyta Jaworska, Marek Rybicki, Bartłomiej Szczodry, Michał Jonasz, Danuta Samolczyk-wanyuraAbstract:There are many ways to litf the maxillary sinus mucosa in order to obtain adequate bony conditions prior to implantation. Among these "sinus graft" and "sinus lift", are the methods of raising the sinus’ mucous membrane practiced for 25 years. But with increasing demands from both patients and surgeons research into new treatment Techniques is in progress. Due to the fact that the sinus lifting procedure in a traditional way is unpleasant for the patient, less invasive Techniques to improve the conditions of the bone before the prosthetic treatment are being researched. In this paper sinus physiolift and crestal approach sinus kit methods are presented as an alternative, atraumatic Hydrodynamic Techniques of sinus lift. The aim of the study is to present the Hydrodynamic Technique of sinus lift on basis of available literature and our own observations. Among the 24 patients qualified for sinus lift, the procedure was performed by means of Hydrodynamic Technique. The use of closed Hydrodynamic methods of sinus lift has improved the bone conditions within the maxillary alveolar process and permitted planned simultaneous implantation.
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techniki hydrokinetyczne jako nowe metody podnoszenia blony śluzowej dna zatoki szczekowej przy jednoczasowej instalacji implantow doniesienie wstepne Hydrodynamic maxillary sinus lift Technique with immediate implant placement a review of new techni
2013Co-Authors: Edyta Jaworska, Marek Rybicki, Danuta SamolczykwanyuraAbstract:There are many ways to litf the maxillary sinus mucosa in order to obtain adequate bony conditions prior to implantation. Among these "sinus graft" and "sinus lift", are the methods of raising the sinus’ mucous membrane practiced for 25 years. But with increasing demands from both patients and surgeons research into new treatment Techniques is in progress. Due to the fact that the sinus lifting procedure in a traditional way is unpleasant for the patient, less invasive Techniques to improve the conditions of the bone before the prosthetic treatment are being researched. In this paper sinus physiolift and crestal approach sinus kit methods are presented as an alternative, atraumatic Hydrodynamic Techniques of sinus lift. The aim of the study is to present the Hydrodynamic Technique of sinus lift on basis of available literature and our own observations. Among the 24 patients qualified for sinus lift, the procedure was performed by means of Hydrodynamic Technique. The use of closed Hydrodynamic methods of sinus lift has improved the bone conditions within the maxillary alveolar process and permitted planned simultaneous implantation.
Nobuhiko P. Kobayashi - One of the best experts on this subject based on the ideXlab platform.
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Organic non-volatile memory cell based on resistive elements through electro-Hydrodynamic Technique
Organic Electronics, 2015Co-Authors: Shawkat Ali, Jinho Bae, Kyung Hyun Choi, Chong Hyun Lee, Yang Hoi Doh, Sangho Shin, Nobuhiko P. KobayashiAbstract:Abstract By utilizing electro-Hydrodynamic (EHD) Technique, we propose an organic non-volatile memory cell capable of storing one bit data. It consists of an organic resistor and a memristor, which stores a bit in the memristor and be read by a voltage divider operation. The proposed device is fabricated by utilizing the materials poly(3,4-ethylenedioxythiophene):poly(styrenesulfonate) (PEDOT:PSS) for resistor and zirconium dioxide ( ZrO 2 ) for memristor. The fabricated device is in the size of 4 mm × 2 mm, and thickness of the memristor and the resistor are 76 nm and 1 μm, respectively. To verify the device, reliable read/write operations are presented for more than 100 cycles. The device is also measured a stable performance against bending, and a minimum applicable bending diameter is 12 mm. The device is analyzed for surface morphology by taking SEM images.
Pietro Ferraro - One of the best experts on this subject based on the ideXlab platform.
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Plasmon resonance of gold nanorods for all-optical drawing of liquid droplets
Applied Physics Letters, 2013Co-Authors: M. De Angelis, Paolo Matteini, Fulvio Ratto, Rita Pini, S. Coppola, Simonetta Grilli, V. Vespini, Pietro FerraroAbstract:We present a laser-assisted system for dispensing liquid micro-droplets by near infrared illumination of a pyroelectric crystal functionalized with gold nanorods embedded into polyvinyl alcohol. The non-invasive near infrared source resonates with the plasmon oscillations of the gold nanorods, providing a controlled thermal stimulus able to generate the pyroelectric effect. The resulting electric field interacts electro-Hydrodynamically with a liquid reservoir leading to precise drawing of micro-litre droplets. This laser-assisted electro-Hydrodynamic Technique may open the way to the development of more compact and non-invasive nano-dispensing devices.
Thomas J. Meyer - One of the best experts on this subject based on the ideXlab platform.
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Application of the rotating ring-disc-electrode Technique to water oxidation by surface-bound molecular catalysts.
Inorganic chemistry, 2013Co-Authors: Javier J. Concepcion, Robert A. Binstead, Leila Alibabaei, Thomas J. MeyerAbstract:We report here the application of a simple Hydrodynamic Technique, linear sweep voltammetry with a modified rotating-ring-disc electrode, for the study of water oxidation catalysis. With this Technique, we have been able to reliably obtain turnover frequencies, overpotentials, Faradaic conversion efficiencies, and mechanistic information from single samples of surface-bound metal complex catalysts.
