Capturing exchange using periodic radiofrequency irradiation.
Capturing exchange using periodic radiofrequency irradiation.
复制标题
DOI:
10.1016/j.jmr.2018.09.001
复制
发表时间:
2018-11
期刊:
影响因子:
--
通讯作者:
Michaeli S
中科院分区:
文献类型:
--
作者:
Liimatainen T;Laakso H;Idiyatullin D;Mangia S;Michaeli S
The dynamics of spin system coupled by chemical exchange between two sites with different chemical shifts during periodic radiofrequency (RF) irradiation was here investigated. When the instantaneous π-flip of effective frequency during the course of frequency sweep was applied, a significant increase of exchange-induced relaxation rate constants was observed for small tip angle of magnetization in the laboratory frame of reference. This increase of the rate constants corresponds to the side bands generated by the periodic irradiation during the RF pulses. The exchange - induced relaxation rate constants depend on the exchange conditions, the RF power and the irradiation period. The described phenomenon promises applications for studying protein dynamics and for generating exchange specific relaxation contrasts in MRI.
登录
查看更多内容
影响因子:
2.2
作者:
Liimatainen, Timo;Mangia, Silvia;Michaeli, Shalom
通讯作者:
Michaeli, Shalom
影响因子:
2.2
作者:
Garwood, M;DelaBarre, L
通讯作者:
DelaBarre, L
影响因子:
2.2
作者:
Andronesi, Ovidiu C.;Ramadan, Saadallah;Sorensen, A. Gregory
通讯作者:
Sorensen, A. Gregory
影响因子:
1.8
作者:
Michaeli, Shalom;Sorce, Dennis J.;Garwood, Michael
通讯作者:
Garwood, Michael
影响因子:
2.2
作者:
Podkorytov, IS;Skrynnikov, NR
通讯作者:
Skrynnikov, NR