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.jpg): Failed to open stream: No such file or directory in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 117 Nat+Commun
2018 ; 9
(1
): 1848
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Light-driven transformable optical agent with adaptive functions for boosting
cancer surgery outcomes
#MMPMID29748611
Qi J
; Chen C
; Zhang X
; Hu X
; Ji S
; Kwok RTK
; Lam JWY
; Ding D
; Tang BZ
Nat Commun
2018[May]; 9
(1
): 1848
PMID29748611
show ga
Fluorescence and photoacoustic imaging have different advantages in cancer
diagnosis; however, combining effects in one agent normally requires a trade-off
as the mechanisms interfere. Here, based on rational molecular design, we
introduce a smart organic nanoparticle whose absorbed excitation energy can be
photo-switched to the pathway of thermal deactivation for photoacoustic imaging,
or to allow opposed routes for fluorescence imaging and photodynamic therapy. The
molecule is made of a dithienylethene (DTE) core with two surrounding
2-(1-(4-(1,2,2-triphenylvinyl)phenyl)ethylidene)malononitrile (TPECM) units
(DTE-TPECM). The photosensitive molecule changes from a ring-closed, for
photoacoustic imaging, to a ring-opened state for fluorescence and photodynamic
effects upon an external light trigger. The nanoparticles' photoacoustic and
fluorescence imaging properties demonstrate the advantage of the switch. The use
of the nanoparticles improves the outcomes of in vivo cancer surgery using
preoperative photoacoustic imaging and intraoperative fluorescent
visualization/photodynamic therapy of residual tumours to ensure total tumour
removal.
|Animals
[MESH]
|Antineoplastic Agents/*chemistry/therapeutic use
[MESH]