Multicolor hybrid upconversion nanoparticles and their improved performance as luminescence temperature sensors due to energy transfer.
نویسندگان
چکیده
By combining upconversion nanoparticles (UCNPs) with rhodamine 6G (R6G) dye molecules, multicolor emission based on energy transfer is achieved. The complexes can be dissolved in epoxy resin, and self-assembled hemispherical microstructures are fabricated through a hydrophobic effect. A luminescence temperature sensor takes advantage of the high temperature sensitivity of the complexes due to energy transfer.
منابع مشابه
Real-Time Monitoring of ATP-Responsive Drug Release Using Mesoporous-Silica-Coated Multicolor Upconversion Nanoparticles.
Stimuli-responsive drug delivery vehicles have garnered immense interest in recent years due to unparalleled progress made in material science and nanomedicine. However, the development of stimuli-responsive devices with integrated real-time monitoring capabilities is still in its nascent stage because of the limitations of imaging modalities. In this paper, we describe the development of a pol...
متن کاملCritical Shell Thickness of Core/shell Upconversion Luminescence Nanoplatforms for FRET Applications
The influence of the structure of upconversion nanoparticles on their fluorescence resonant energy transfer applications has been studied using core/shell upconversion NaYF4:Yb,Er@NaYF4 nanoparticles and rose bengal photosensitizer. From studies of the photophysics of and singlet oxygen generation by the conjugates of upconversion nanoparticles with photosensitizers we have determined what the ...
متن کاملSensing Using Rare-Earth-Doped Upconversion Nanoparticles
Optical sensing plays an important role in theranostics due to its capability to detect hint biochemical entities or molecular targets as well as to precisely monitor specific fundamental psychological processes. Rare-earth (RE) doped upconversion nanoparticles (UCNPs) are promising for these endeavors due to their unique frequency converting capability; they emit efficient and sharp visible or...
متن کاملMulticolor Core/Shell-Structured Upconversion Fluorescent Nanoparticles
Near-infrared (NIR)-to-Visible upconversion fluorescent nanoparticles emit visible light upon NIR-light excitation, and are well suited for bioimaging, compared to the commonly used downconversionfluorescentmaterials.Thesenanoparticleshave advantages such as minimum photodamage to living organisms, weak background fluorescence, high detection sensitivity, and high light-penetration depth in tis...
متن کاملMulticolor tunability and upconversion enhancement of fluoride nanoparticles by oxygen dopant.
The ability to manipulate the upconversion luminescence of lanthanide-ion doped fluoride upconversion nanoparticles (UCNPs) is particularly important and highly desired due to their wide applications in color displays, multiplexing bioassays and multicolor imaging. Here, we developed a strategy for simultaneously tuning color output and enhancing upconversion emission of Yb/Er doped fluoride UC...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید
ثبت ناماگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید
ورودعنوان ژورنال:
- Small
دوره 9 7 شماره
صفحات -
تاریخ انتشار 2013