The Experts below are selected from a list of 84 Experts worldwide ranked by ideXlab platform

Chen Huang - One of the best experts on this subject based on the ideXlab platform.

  • Poly(butylene terephthalate) Fiber Assembly with Controllable Pore Size and Gradient Wettability: Potential in Simplifying Cell Culture Procedure
    ACS Macro Letters, 2018
    Co-Authors: Peilin Jiang, Yingjun Gao, Xin Chen, Xiangyu Jin, Chen Huang
    Abstract:

    This study reports the scalable fabrication of a poly(butylene terephthalate) fiber assembly featured with controllable pore size and gradient wettability. Pore size is controlled via adjusting the throughput of Melt Blown Process, while gradient wettability is achieved through single-sided plasma exposure and subsequent chitosan coating. When used in cell culture, the fiber assembly takes much less time in reaching a high cell collecting/releasing rate up to ≥99.5%, which is similar to that of the conventional centrifugal method. Other advantages of the fiber assembly, such as improved cell viability, reduced risk of contamination, and excellent reusability are also proved, leading us to believe its great potential in making the current cell culture procedure simpler and faster.

  • Poly(butylene terephthalate) Fiber Assembly with Controllable Pore Size and Gradient Wettability: Potential in Simplifying Cell Culture Procedure
    2018
    Co-Authors: Peilin Jiang, Yingjun Gao, Xin Chen, Xiangyu Jin, Chen Huang
    Abstract:

    This study reports the scalable fabrication of a poly­(butylene terephthalate) fiber assembly featured with controllable pore size and gradient wettability. Pore size is controlled via adjusting the throughput of Melt Blown Process, while gradient wettability is achieved through single-sided plasma exposure and subsequent chitosan coating. When used in cell culture, the fiber assembly takes much less time in reaching a high cell collecting/releasing rate up to ≥99.5%, which is similar to that of the conventional centrifugal method. Other advantages of the fiber assembly, such as improved cell viability, reduced risk of contamination, and excellent reusability are also proved, leading us to believe its great potential in making the current cell culture procedure simpler and faster

Peilin Jiang - One of the best experts on this subject based on the ideXlab platform.

  • Poly(butylene terephthalate) Fiber Assembly with Controllable Pore Size and Gradient Wettability: Potential in Simplifying Cell Culture Procedure
    ACS Macro Letters, 2018
    Co-Authors: Peilin Jiang, Yingjun Gao, Xin Chen, Xiangyu Jin, Chen Huang
    Abstract:

    This study reports the scalable fabrication of a poly(butylene terephthalate) fiber assembly featured with controllable pore size and gradient wettability. Pore size is controlled via adjusting the throughput of Melt Blown Process, while gradient wettability is achieved through single-sided plasma exposure and subsequent chitosan coating. When used in cell culture, the fiber assembly takes much less time in reaching a high cell collecting/releasing rate up to ≥99.5%, which is similar to that of the conventional centrifugal method. Other advantages of the fiber assembly, such as improved cell viability, reduced risk of contamination, and excellent reusability are also proved, leading us to believe its great potential in making the current cell culture procedure simpler and faster.

  • Poly(butylene terephthalate) Fiber Assembly with Controllable Pore Size and Gradient Wettability: Potential in Simplifying Cell Culture Procedure
    2018
    Co-Authors: Peilin Jiang, Yingjun Gao, Xin Chen, Xiangyu Jin, Chen Huang
    Abstract:

    This study reports the scalable fabrication of a poly­(butylene terephthalate) fiber assembly featured with controllable pore size and gradient wettability. Pore size is controlled via adjusting the throughput of Melt Blown Process, while gradient wettability is achieved through single-sided plasma exposure and subsequent chitosan coating. When used in cell culture, the fiber assembly takes much less time in reaching a high cell collecting/releasing rate up to ≥99.5%, which is similar to that of the conventional centrifugal method. Other advantages of the fiber assembly, such as improved cell viability, reduced risk of contamination, and excellent reusability are also proved, leading us to believe its great potential in making the current cell culture procedure simpler and faster

Ephraim M Sparrow - One of the best experts on this subject based on the ideXlab platform.

  • Numerical simulations of plane-wall coanda effects for control of fiber trajectories in the Melt-Blown Process
    Industrial & Engineering Chemistry Research, 2013
    Co-Authors: Srikar Chelikani, Ephraim M Sparrow
    Abstract:

    The goal of this investigation is to demonstrate, by means of numerical simulation, that the Coanda effect can be used to affect the trajectory of fine fibers created by the Melt-Blown Process. The Coanda effect serves to modulate the direction of fluid motion, and, in turn, the change in the pattern of fluid flow alters the fiber trajectories. Primary focus is accorded to the use of plane walls to induce the Coanda effect, but some consideration is given to curved Coanda-inducing walls for comparison purposes. The lateral standoff distance between the location of the fiber exit from the die and the Coanda-inducing wall was varied parametrically. The range of standoff distances for which the presence of a plane wall induced the Coanda effect was determined. Another outcome of general significance is that the Coanda effects induced by a curved wall and a plane wall are of comparable magnitude.

  • Geometric Factors in the Processing of Fine Fiber by Fluid Shear and Heat Transfer
    Heat Transfer Engineering, 2009
    Co-Authors: William P. Klinzing, Ephraim M Sparrow
    Abstract:

    In this article, a synergistic approach encompassing numerical simulation and laboratory experimentation is used to identify the optimal geometry for the creation of fine fiber by the Melt-Blown Process. The problem involves highly complex fluid flow and convective heat transfer. The fine fiber is created by the use of high-velocity, obliquely impinging air jets that stretch a polymer extrudate in the partially fluid state. High-temperature air is used to maintain the fluidity of the polymeric material as it exits the die. Four different geometrical configurations were investigated with regard to their capability of producing high fluid shear and high temperatures in the critical region just downstream of the emergence of the polymer extrudate from the tip of a die. The results of the numerical simulations provided a definitive conclusion about the relative efficacies of the four investigated geometrical configurations. The velocity and temperature profiles of the oblique jets were carefully documented to...

  • Three-dimensional fluid flow in the Processing of fine fibers
    Industrial & Engineering Chemistry Research, 2008
    Co-Authors: William P. Klinzing, Ephraim M Sparrow
    Abstract:

    In this paper, a multidimensional numerical simulation has been used to investigate the creation of fine fiber by the Melt-Blown Process. The problem involves highly complex fluid flow and convective heat transfer Processes. The fine fiber is created by the use of high-velocity, obliquely impinging air jets whose high shear forces stretch a polymer extrudate in the partially fluid state. High-temperature air is used to maintain the fluidity of the polymeric material as it exits the die. The model which was developed and implemented for the simulation closely reflects the physical situation employed in the actual production of fine fibers. The actual configuration of fine fiber production is a linear array of orifices from which the partially fluid polymer emerges. The array contains inherent symmetries which enable the problem to be tractable. Notwithstanding this, the numerical simulation still required multimillions of control volumes to achieve results of practical relevance. The results of the simulat...

Behnam Pourdeyhimi - One of the best experts on this subject based on the ideXlab platform.

  • Polyether Based Thermoplastic Polyurethane Melt Blown Nonwovens
    Journal of Engineered Fibers and Fabrics, 2006
    Co-Authors: Terezie Zapletalova, Stephen Michielsen, Behnam Pourdeyhimi
    Abstract:

    A series of Melt Blown samples were produced from three hardness grades of ether based thermoplastic polyurethane elastomers (TPU). The fabrics were tested to investigate their structure-property relationship in a Melt Blown Process. Solution viscosities of the web were only 20-26% of there original values indicating a large loss in polymer molecular weight during Melt blowing. Fiber diameter distributions measured on Melt Blown samples were found comparable to those made with more conventional polymers. The fiber orientation distribution functions (ODF) suggest slight fiber orientation in machine direction. Tensile and elongation properties depended on die-to-collector distance (DCD), polymer hardness and fiber ODF. A strong relationship between the tensile strength and die-to-collector distance was identified and attributed to reduced interfiber adhesion in the web with increasing DCD. The reduction in adhesion was attributed to greater extents of solidification before reaching the forming belt for longer DCDs. This paper is the first in a series relating the influence of the Melt blowing Process parameters on the polymer properties and the nonwoven fabric properties for block thermoplastic

  • Polyether Based Thermoplastic Polyurethane Melt Blown Nonwovens
    SAGE Publishing, 2006
    Co-Authors: Terezie Zapletalova, Stephen Michielsen, Behnam Pourdeyhimi
    Abstract:

    A series of Melt Blown samples were produced from three hardness grades of ether based thermoplastic polyurethane elastomers (TPU). The fabrics were tested to investigate their structure-property relationship in a Melt Blown Process. Solution viscosities of the web were only 20-26% of there original values indicating a large loss in polymer molecular weight during Melt blowing. Fiber diameter distributions measured on Melt Blown samples were found comparable to those made with more conventional polymers. The fiber orientation distribution functions (ODF) suggest slight fiber orientation in machine direction. Tensile and elongation properties depended on die-to-collector distance (DCD), polymer hardness and fiber ODF. A strong relationship between the tensile strength and die-to-collector distance was identified and attributed to reduced interfiber adhesion in the web with increasing DCD. The reduction in adhesion was attributed to greater extents of solidification before reaching the forming belt for longer DCDs. This paper is the first in a series relating the influence of the Melt blowing Process parameters on the polymer properties and the nonwoven fabric properties for block thermoplastic elastomers

Xiangyu Jin - One of the best experts on this subject based on the ideXlab platform.

  • Poly(butylene terephthalate) Fiber Assembly with Controllable Pore Size and Gradient Wettability: Potential in Simplifying Cell Culture Procedure
    ACS Macro Letters, 2018
    Co-Authors: Peilin Jiang, Yingjun Gao, Xin Chen, Xiangyu Jin, Chen Huang
    Abstract:

    This study reports the scalable fabrication of a poly(butylene terephthalate) fiber assembly featured with controllable pore size and gradient wettability. Pore size is controlled via adjusting the throughput of Melt Blown Process, while gradient wettability is achieved through single-sided plasma exposure and subsequent chitosan coating. When used in cell culture, the fiber assembly takes much less time in reaching a high cell collecting/releasing rate up to ≥99.5%, which is similar to that of the conventional centrifugal method. Other advantages of the fiber assembly, such as improved cell viability, reduced risk of contamination, and excellent reusability are also proved, leading us to believe its great potential in making the current cell culture procedure simpler and faster.

  • Poly(butylene terephthalate) Fiber Assembly with Controllable Pore Size and Gradient Wettability: Potential in Simplifying Cell Culture Procedure
    2018
    Co-Authors: Peilin Jiang, Yingjun Gao, Xin Chen, Xiangyu Jin, Chen Huang
    Abstract:

    This study reports the scalable fabrication of a poly­(butylene terephthalate) fiber assembly featured with controllable pore size and gradient wettability. Pore size is controlled via adjusting the throughput of Melt Blown Process, while gradient wettability is achieved through single-sided plasma exposure and subsequent chitosan coating. When used in cell culture, the fiber assembly takes much less time in reaching a high cell collecting/releasing rate up to ≥99.5%, which is similar to that of the conventional centrifugal method. Other advantages of the fiber assembly, such as improved cell viability, reduced risk of contamination, and excellent reusability are also proved, leading us to believe its great potential in making the current cell culture procedure simpler and faster