An intravascular bioartificial pancreas device (iBAP) with silicon nanopore membranes (SNM) for islet encapsulation under convective mass transport.
An intravascular bioartificial pancreas device (iBAP) with silicon nanopore membranes (SNM) for islet encapsulation under convective mass transport.
复制标题
血管内生物人工胰腺器件(IBAP),带有硅纳米孔膜(SNM),用于对流质量运输下的胰岛封装。
DOI:
10.1039/c7lc00096k
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发表时间:
2017-05-16
期刊:
影响因子:
6.1
通讯作者:
Roy S
中科院分区:
文献类型:
--
作者:
Song S;Blaha C;Moses W;Park J;Wright N;Groszek J;Fissell W;Vartanian S;Posselt AM;Roy S
Diffusion-based bioartificial pancreas (BAP) devices are limited by poor islet viability and functionality due to inadequate mass transfer resulting in islet hypoxia and delayed glucose-insulin kinetics. While intravascular ultrafiltration-based BAP devices possess enhanced glucose-insulin kinetics, the polymer membranes used in these devices provide inadequate ultrafiltrate flow rates and result in excessive thrombosis. Here, we report the silicon nanopore membrane (SNM), which exhibits a greater hydraulic permeability and a superior pore size selectivity compared to polymer membranes for use in BAP applications. Specifically, we demonstrate that the SNM-based intravascular BAP with ~10 and ~40 nm pore sized membranes support high islet viability (>60%) and functionality (<15 minute insulin response to glucose stimulation) at clinically relevant islet densities (5,700 and 11,400 IE/cm2) under convection in vitro. In vivo studies with ~10 nm pore sized SNM in a porcine model showed high islet viability (>85%) at clinically relevant islet density (5,700 IE/cm2), c-peptide concentration of 144 pM in the outflow ultrafiltrate, and hemocompatibility under convection. These promising findings offer insights on the development of next generation of full-scale intravascular devices to treat T1D patients in the future. We present the silicon nanopore membrane (SNM) based intravascular bioartificial pancreas (iBAP) in a porcine model that demonstrates high islet viability and functionality at clinically relevant cell density and hemocompatibility under convective transport.
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影响因子:
--
作者:
Buchwald P
通讯作者:
Buchwald P
影响因子:
2.2
作者:
Kim A;Miller K;Jo J;Kilimnik G;Wojcik P;Hara M
通讯作者:
Hara M
影响因子:
3.8
作者:
Conlisk, A. T.;Datta, Subhra;Fissell, William H.;Roy, Shuvo
通讯作者:
Roy, Shuvo
影响因子:
8.2
作者:
Gibly, R. F.;Graham, J. G.;Luo, X.;Lowe, W. L., Jr.;Hering, B. J.;Shea, L. D.
通讯作者:
Shea, L. D.
DOI:
10.1115/1.3108400
发表时间:
1988-02-01
影响因子:
1.7
作者:
JAFFRIN, MY;REACH, G;NOTELET, D
通讯作者:
NOTELET, D