All-in-one nanowire-decorated multifunctional membrane for rapid cell lysis and direct DNA isolation.

All-in-one nanowire-decorated multifunctional membrane for rapid cell lysis and direct DNA isolation.
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DOI:
10.1021/am506153y
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发表时间:
2014-12-10
影响因子:
9.5
通讯作者:
Pisano, Albert P.
Pisano, Albert P.
中科院分区:
材料科学2区
文献类型:
--
作者:
So, Hongyun;Lee, Kunwoo;Murthy, Niren;Pisano, Albert P.

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本文描述了一种手持式设备,该设备使用一体式膜进行连续机械细胞裂解和快速 DNA 分离,无需电源、裂解试剂和常规离心的帮助。这种纳米线装饰的多功能膜是通过纳米线的超锋利尖端破坏细胞核膜后立即选择性吸附到二氧化硅表面来分离DNA,以实现快速细胞裂解,并且它可以直接与商业注射器过滤器支架组装。该膜通过光电化学蚀刻形成微通道阵列,然后进行纳米线的水热合成和二氧化硅的沉积来制造。所提出的膜可在 5 分钟内成功纯化高质量 DNA,而商业纯化试剂盒需要一个多小时。
This paper describes a handheld device that uses an all-in-one membrane for continuous mechanical cell lysis and rapid DNA isolation without the assistance of power sources, lysis reagents, and routine centrifugation. This nanowire-decorated multifunctional membrane was fabricated to isolate DNA by selective adsorption to silica surface immediately after disruption of nucleus membranes by ultrasharp tips of nanowires for a rapid cell lysis, and it can be directly assembled with commercial syringe filter holders. The membrane was fabricated by photoelectrochemical etching to create microchannel arrays followed by hydrothermal synthesis of nanowires and deposition of silica. The proposed membrane successfully purifies high-quality DNA within 5 min, whereas a commercial purification kit needs more than an hour.
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