Ultra-thin and ultra-porous nanofiber networks as a basement-membrane mimic

Graybill, Philip M.; Jacobs, Edward J.; Jana, Aniket; Agashe, Atharva; Nain, Amrinder S.; Davalos, Rafael V.

doi:10.1039/d3lc00304c

Lab Chip

2023

DOI: 10.1039/d3lc00304c

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Ultra-thin and ultra-porous nanofiber networks as a basement-membrane mimic

Philip M. Graybill,

Edward J. Jacobs,

Aniket Jana

et al.

Abstract: Current basement-membrane mimics used for modeling endothelial and epithelial barriers in vitro do not faithfully recapitulate key in vivo physiological properties such as basement membrane thickness, porosity, stiffness, and fibrous...

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2024

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Cited by 2 publications

References 79 publications

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Novel simulation of the blood–brain barrier using the polyacrylonitrile electrospun nanofibrous membrane on 3D‐printed Transwell

Raeiji,

Morshedi,

Mahmoudifard

2024

Polymers for Advanced Techs

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The blood–brain barrier (BBB) possesses an intricate structure and set of characteristics that effectively restricts the transportation of substances to the central nervous system. Consequently, the development of pharmaceuticals for brain disorders poses significant hurdles. Numerous attempts have been made to produce innovative simulates of BBB that exhibit a striking resemblance to BBB and are suitable for efficient drug screening, as well as being user‐friendly and easily reproducible. One of the models available is the commercial Transwell® system. In this system, chosen endothelial cells form a single layer on the rigid membrane of the upper chamber. In the present study, the two‐dimensional structure of this membrane was exchanged with a three‐dimensional membrane using the 3D printing method and developed a novel approach to fabricate the scaffold in one step on the fabricated Transwell. This novel method of horizontal electrospinning has reduced the mechanical damage associated with conventional vertical electrospinning, resulting in suitable mechanical properties for cell culture. The lower diameter of the nanofibers, the thickness of the mesh, bulk Young's modulus and hydrophobicity compared to conventional mesh‐based counterparts are characteristics which make it more similar to the natural basement membrane and improve cell culture necessities on the scaffold. The designed BBB model was characterized via cell morphology, trans‐endothelial electrical resistance, and permeability value. This human BBB model formed robust cell integrity and achieved the acceptable range of TEER and low permeability that confirm the polyacrylonitrile (PAN) scaffold as an in vitro cell culture platform with promising cell culture results of the brain microvascular endothelial cell line hCMEC/D3.

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Novel simulation of the blood–brain barrier using the polyacrylonitrile electrospun nanofibrous membrane on 3D‐printed Transwell

Raeiji,

Morshedi,

Mahmoudifard

2024

Polymers for Advanced Techs

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Engineering brain-on-a-chip platforms

Servais,

Mahmoudi,

Gautam

et al. 2024

Nat Rev Bioeng

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Ultra-thin and ultra-porous nanofiber networks as a basement-membrane mimic

Abstract: Current basement-membrane mimics used for modeling endothelial and epithelial barriers in vitro do not faithfully recapitulate key in vivo physiological properties such as basement membrane thickness, porosity, stiffness, and fibrous...

Cited by 2 publications

References 79 publications

Novel simulation of the blood–brain barrier using the polyacrylonitrile electrospun nanofibrous membrane on 3D‐printed Transwell

Novel simulation of the blood–brain barrier using the polyacrylonitrile electrospun nanofibrous membrane on 3D‐printed Transwell

Engineering brain-on-a-chip platforms

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