P22 viral capsids as nanocomposite high-relaxivity MRI contrast agents.
P22 viral capsids as nanocomposite high-relaxivity MRI contrast agents.
复制标题
DOI:
10.1021/mp300208g
复制
发表时间:
2013-01-07
影响因子:
4.9
通讯作者:
Douglas T
中科院分区:
文献类型:
--
作者:
Qazi S;Liepold LO;Abedin MJ;Johnson B;Prevelige P;Frank JA;Douglas T
Attachment of multiple chelated Gd3+ ions to the interior of bacteriophage P22 viral capsids afford nanoscale MRI contrast agents with extremely high relaxivity values. Highly fenestrated ‘wiffleball’ morphology is unique to P22 and assures water exchange between the environment and interior cavity of the capsid. The cavity of P22 ‘wiffleball’ was functionalized with a branched oligomer comprising of multiple DTPA-Gd complexes resulting in an impressive payload of 1,900 Gd3+ ions inside each 64nm capsid. High relaxivities of r1 ionic = 21.7 mM−1 sec−1 and r1 particle = 41,300 mM−1 sec−1 at 298K, 0.65T (28MHz) are reported, with r1/r2 ratio of 0.80 and optimized rotational correlation time for this system. Specific design modifications are suggested for future improvements of viral capsid-based MRI contrast agents directed toward clinical translation.
登录
查看更多内容
影响因子:
10.8
作者:
Liepold LO;Abedin MJ;Buckhouse ED;Frank JA;Young MJ;Douglas T
通讯作者:
Douglas T
影响因子:
10.8
作者:
Hooker, Jacob M.;Datta, Ankona;Francis, Matthew B.
通讯作者:
Francis, Matthew B.
影响因子:
5.6
作者:
Kamaly N;Miller AD
通讯作者:
Miller AD
影响因子:
4
作者:
Ferreira, M. F.;Mousavi, B.;Geraldes, C. F. G. C.
通讯作者:
Geraldes, C. F. G. C.
影响因子:
16.1
作者:
Cormode, David P.;Jarzyna, Peter A.;Mulder, Willem J. M.;Fayad, Zahi A.
通讯作者:
Fayad, Zahi A.