scholarly journals Enhanced one- and two-photon pumped amplified spontaneous emissions of Ag-SiO2 core-shell nanowire composite embedded CH3NH3PbBr3 in SiO2 mesopores

2020 ◽  
Vol 10 (6) ◽  
pp. 1363
Author(s):  
Qiaojiao Zou ◽  
Zijun Zhan ◽  
Chen Cheng ◽  
Jianfei Li ◽  
Manna Gu ◽  
...  
Keyword(s):  
Core Shell ◽  
Two Photon ◽  
Spontaneous Emissions

Two-photon Absorption in ZnO/ZnS Core-shell Quantum Dots

2015 ◽  
Vol 36 (2) ◽  
pp. 249-255
Author(s):  
刘姝妤 LIU Shu-yu ◽  
钟绵增 ZHONG Mian-zeng ◽  
孟秀清 MENG Xiu-qing ◽  
李京波 LI Jing-bo ◽  
王沅倩 WANG Yuan-qian ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Photon Absorption ◽  
Core Shell ◽  
Two Photon Absorption ◽  
Two Photon

scholarly journals Optical nonlinearities of colloidal InP@ZnS core-shell quantum dots probed by Z-scan and two-photon excited emission

APL Materials ◽  
2015 ◽  
Vol 3 (11) ◽  
pp. 116108 ◽  
Author(s):  
Dominika Wawrzynczyk ◽  
Janusz Szeremeta ◽  
Marek Samoc ◽  
Marcin Nyk
Keyword(s):  
Quantum Dots ◽  
Core Shell ◽  
Optical Nonlinearities ◽  
Two Photon

Mixed Periodic Mesoporous Organosilica Nanoparticles and Core–Shell Systems, Application to in Vitro Two-Photon Imaging, Therapy, and Drug Delivery

2014 ◽  
Vol 26 (24) ◽  
pp. 7214-7220 ◽  
Author(s):  
Jonas Croissant ◽  
Damien Salles ◽  
Marie Maynadier ◽  
Olivier Mongin ◽  
Vincent Hugues ◽  
...  
Keyword(s):  
Drug Delivery ◽  
Core Shell ◽  
Periodic Mesoporous Organosilica ◽  
Two Photon ◽  
Mesoporous Organosilica ◽  
Photon Imaging ◽  
Two Photon Imaging

Comparison of self-assembled and micelle encapsulated QD chemosensor constructs for biological sensing

2015 ◽  
Vol 185 ◽  
pp. 249-266 ◽  
Author(s):  
Christopher M. Lemon ◽  
Daniel G. Nocera
Keyword(s):  
Self Assembly ◽  
Metabolic Profiling ◽  
Photophysical Properties ◽  
Resonance Energy Transfer ◽  
Resonance Energy ◽  
Core Shell ◽  
Biological Sensing ◽  
Two Photon ◽  
Photon Excitation ◽  
Fret Efficiency

Whereas a variety of covalent conjugation strategies have been utilized to prepare quantum dot (QD)-based nanosensors, supramolecular approaches of self-assembly have been underexplored. A major advantage of self-assembly is the ability to circumvent laborious synthetic efforts attendant to covalent conjugation of a chemosensor to functionalized QDs. Here, we combine a CdSe/ZnS core–shell QD with gold(iii) corroles using both self-assembly and micelle encapsulation to form QD nanosensors. Appreciable spectral overlap between QD emission and corrole absorption results in efficient Förster resonance energy transfer (FRET), which may be initiated by one- or two-photon excitation. The triplet state of the gold(iii) corroles is quenched by molecular oxygen, enabling these constructs to function as optical O2 sensors, which is useful for the metabolic profiling of tumours. The photophysical properties, including QD and corrole lifetimes, FRET efficiency, and O2 sensitivity, have been determined for each construct. The relative merits of each conjugation strategy are assessed with regard to their implementation as sensors.

Folic acid-conjugated core/shell ZnS:Mn/ZnS quantum dots as targeted probes for two photon fluorescence imaging of cancer cells

2011 ◽  
Vol 7 (3) ◽  
pp. 1327-1338 ◽  
Author(s):  
Malgorzata Geszke ◽  
Marek Murias ◽  
Lavinia Balan ◽  
Ghouti Medjahdi ◽  
Jaroslaw Korczynski ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Folic Acid ◽  
Cancer Cells ◽  
Fluorescence Imaging ◽  
Core Shell ◽  
Two Photon ◽  
Two Photon Fluorescence ◽  
Photon Fluorescence

Two-photon absorption in ZnSe and ZnSe∕ZnS core/shell quantum structures

2008 ◽  
Vol 92 (4) ◽  
pp. 043126 ◽  
Author(s):  
Amit D. Lad ◽  
P. Prem Kiran ◽  
Deepak More ◽  
G. Ravindra Kumar ◽  
Shailaja Mahamuni
Keyword(s):  
Photon Absorption ◽  
Quantum Structures ◽  
Core Shell ◽  
Two Photon Absorption ◽  
Two Photon

Polypyrrole-stabilized gold nanorods with enhanced photothermal effect towards two-photon photothermal therapy

2015 ◽  
Vol 3 (22) ◽  
pp. 4539-4545 ◽  
Author(s):  
Cuiling Du ◽  
Anhe Wang ◽  
Jinbo Fei ◽  
Jie Zhao ◽  
Junbai Li
Keyword(s):  
Tumor Cells ◽  
Gold Nanorods ◽  
Photothermal Therapy ◽  
Photothermal Effect ◽  
Core Shell ◽  
Two Photon ◽  
The Core ◽  
Shell Composite

The core–shell composite of Au–polypyrrole nanorods with high two-photon photothermal effect and stability could efficiently kill tumor cells under irradiation.

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