Acoustically modulated magnetic resonance imaging of gas-filled protein nanostructures.
Acoustically modulated magnetic resonance imaging of gas-filled protein nanostructures.
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DOI:
10.1038/s41563-018-0023-7
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发表时间:
2018-05
期刊:
影响因子:
41.2
通讯作者:
Shapiro MG
中科院分区:
文献类型:
--
作者:
Lu GJ;Farhadi A;Szablowski JO;Lee-Gosselin A;Barnes SR;Lakshmanan A;Bourdeau RW;Shapiro MG
Noninvasive biological imaging requires materials capable of interacting with deeply penetrant forms of energy such as magnetic fields and sound waves. Here, we show that gas vesicles, a unique class of gas-filled protein nanostructures with differential magnetic susceptibility relative to water, can produce robust contrast in magnetic resonance imaging (MRI) at sub-nanomolar concentrations, and that this contrast can be inactivated with ultrasound in situ to enable background-free imaging. We demonstrate this capability in vitro, in cells expressing these nanostructures as genetically encoded reporters, and in three model in vivo scenarios. Genetic variants of gas vesicles, differing in their magnetic or mechanical phenotypes, allow multiplexed imaging using parametric MRI and differential acoustic sensitivity. Additionally, clustering-induced changes in MRI contrast enable the design of dynamic molecular sensors. By coupling the complementary physics of MRI and ultrasound, this nanomaterial gives rise to a distinct modality for molecular imaging with unique advantages and capabilities.
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DOI:
10.1038/nrmicro3552
发表时间:
2016-01
期刊:
Nature reviews. Microbiology
影响因子:
--
作者:
Donaldson GP;Lee SM;Mazmanian SK
通讯作者:
Mazmanian SK
影响因子:
3.3
作者:
GILLIS, P;KOENIG, SH
通讯作者:
KOENIG, SH
影响因子:
5.2
作者:
Li, Zongjin;Suzuki, Yoriyasu;Wu, Joseph C.
通讯作者:
Wu, Joseph C.
影响因子:
17.1
作者:
Lakshmanan A;Farhadi A;Nety SP;Lee-Gosselin A;Bourdeau RW;Maresca D;Shapiro MG
通讯作者:
Shapiro MG
影响因子:
46.9
作者:
Ahrens, ET;Flores, R;Morel, PA
通讯作者:
Morel, PA