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Plasmon‐Coupled Gold Nanospheres for Two‐Photon Imaging and Photoantibacterial Activity
Author(s) -
Yuan Peiyan,
Ding Xin,
Guan Zhenping,
Gao Nengyue,
Ma Rizhao,
Jiang XiaoFang,
Yang Yi Yan,
Xu QingHua
Publication year - 2015
Publication title -
advanced healthcare materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.288
H-Index - 90
eISSN - 2192-2659
pISSN - 2192-2640
DOI - 10.1002/adhm.201400524
Subject(s) - photothermal therapy , photoluminescence , nanotechnology , surface plasmon resonance , materials science , photon , laser , surface plasmon , photothermal effect , plasmon , optoelectronics , computer science , optics , nanoparticle , physics
Positively charged Au nanospheres are found to form aggregates on the bacterial surface, resulting in significantly enhanced two‐photon photoluminescence (TPPL). The enhanced TPPL is successfully utilized to image bacterial cells in the NIR region. In addition, these Au nanospheres effectively eradicate the bacterial cells by laser pulses in the same NIR region due to the photothermal effect.