Microgel assisted Lab-on-Fiber Optrode.

Microgel assisted Lab-on-Fiber Optrode.
复制标题

DOI:
10.1038/s41598-017-14852-5
复制
发表时间:
2017-10-31
期刊:
影响因子:
4.6
通讯作者:
Cusano A
Cusano A
中科院分区:
综合性期刊3区
文献类型:
--
作者:
Aliberti A;Ricciardi A;Giaquinto M;Micco A;Bobeico E;La Ferrara V;Ruvo M;Cutolo A;Cusano A

文献摘要

参考文献

被引文献

相似文献

精准医疗不断要求新的护理点系统,也有可能用于体内分析。基于光纤实验室技术的生物传感探针最近得到了发展,以应对这些挑战。然而,利用标准无标签方法(基于配体/靶分子相互作用)的设备在需要检测低浓度小分子的所有情况下都具有低灵敏度。在这里,我们报告了一个通过将Lab-On-Fiber探针与微凝胶相结合而开发的平台,该平台直接集成到光纤尖端实现的共振等离子体纳米结构上。在响应结合事件时,微凝胶网络将目标分子集中,放大光学响应,从而显著提高灵敏度。此外,通过作用于微凝胶的浓度和工作温度等自由度,可以控制检测极限,调整探针的工作范围以及响应时间。这些独特的特性为先进的无标签生物传感平台铺平了道路,可以根据具体应用进行适当的重新配置。
Precision medicine is continuously demanding for novel point of care systems, potentially exploitable also for in-vivo analysis. Biosensing probes based on Lab-On-Fiber Technology have been recently developed to meet these challenges. However, devices exploiting standard label-free approaches (based on ligand/target molecule interaction) suffer from low sensitivity in all cases where the detection of small molecules at low concentrations is needed. Here we report on a platform developed through the combination of Lab-On-Fiber probes with microgels, which are directly integrated onto the resonant plasmonic nanostructure realized on the fiber tip. In response to binding events, the microgel network concentrates the target molecule and amplifies the optical response, leading to remarkable sensitivity enhancement. Moreover, by acting on the microgel degrees of freedom such as concentration and operating temperature, it is possible to control the limit of detection, tune the working range as well as the response time of the probe. These unique characteristics pave the way for advanced label-free biosensing platforms, suitably reconfigurable depending on the specific application.
DOI: 10.1038/35570
发表时间: 1998-02-12
期刊: NATURE
影响因子: 64.8
作者:
Ebbesen, TW;Lezec, HJ;Wolff, PA
通讯作者: Wolff, PA
DOI: 10.1109/jstqe.2016.2600027
发表时间: 2017-03-01
影响因子: 4.9
作者:
Carotenuto, Benito;Micco, Alberto;Cusano, Andrea
通讯作者: Cusano, Andrea
DOI: 10.1021/am403745k
发表时间: 2013-11-27
影响因子: 9.5
作者:
Hu, Liang;Serpe, Michael J.
通讯作者: Serpe, Michael J.
DOI: 10.1016/j.bios.2013.05.011
发表时间: 2013-11-15
影响因子: 12.6
作者:
Islam, Molla R.;Serpe, Michael J.
通讯作者: Serpe, Michael J.
DOI: 10.1039/c3cc00211j
发表时间: 2013-01-01
影响因子: 4.9
作者:
Islam, Molla R.;Serpe, Michael J.
通讯作者: Serpe, Michael J.