Results 21 to 30 of about 41,364 (301)

Twin-Field Quantum Digital Signature with Fully Discrete Phase Randomization

Entropy, 2022
Quantum digital signatures (QDS) are able to verify the authenticity and integrity of a message in modern communication. However, the current QDS protocols are restricted by the fundamental rate-loss bound and the secure signature distance cannot be ...
Jiayao Wu, Chen He, Jiahui Xie, Xiaopeng Liu, Minghui Zhang   +4 more
doaj   +1 more source

CdSe/ZnS Quantum Dots Impaired the First Two Generations of Placenta Growth in an Animal Model, Based on the Shh Signaling Pathway

Nanomaterials, 2019
The toxicity, especially the transgenerational toxicity of quantum dots (QDs) in vivo, is still scarcely understood in spite of great promising applications of QDs in biomedicine.
Wuding Hong, Huijuan Kuang, Xingping He, Lin Yang, Pengfei Yang, Bolu Chen, Zoraida P. Aguilar, Hengyi Xu   +7 more
doaj   +1 more source

sfGFP production enhancement with QDs.

, 2022
(A) Production of sfGFP fluorescence in arbitrary units over time for the optimal 75 nM QD concentration versus that of the “free” or QD negative reaction. Samples were excited at 485 nm and fluorescence monitored at 510 nm [69].
Meghna Thakur (7834256), Joyce C. Breger (1378911), Kimihiro Susumu (1511707), Gregory A. Ellis (1289328), Eunkeu Oh (1317336), Scott A. Walper (180174), Igor L. Medintz (1317330), Joseph R. Spangler (11950146)   +7 more
core   +1 more source

Near-infrared quantum dots labelled with a tumor selective tetrabranched peptide for in vivo imaging

Journal of Nanobiotechnology, 2018
Background Near-infrared quantum dots (NIR QDs) are a new class of fluorescent labels with excellent bioimaging features, such as high fluorescence intensity, good fluorescence stability, sufficient electron density, and strong tissue-penetrating ability.
Jlenia Brunetti, Giulia Riolo, Mariangela Gentile, Andrea Bernini, Eugenio Paccagnini, Chiara Falciani, Luisa Lozzi, Silvia Scali, Lorenzo Depau, Alessandro Pini, Pietro Lupetti, Luisa Bracci   +11 more
doaj   +1 more source

Green light emitting hydrophilic CdTe quantum dots with magic size signature

Next Materials
Synthesis of highly stable green light emitting CdTe quantum dots in aq. medium is discussed. The absorption spectroscopy revealed formation of dots of the size about 4 nm.
Priyanka Phalswal, Akshay P. Raj M, Vaibhav Singh, Devesh Khanna, Pawan K. Khanna   +4 more
doaj   +1 more source

Enhanced glutathione content allows the in vivo synthesis of fluorescent CdTe nanoparticles by Escherichia coli. [PDF]

PLoS ONE, 2012
The vast application of fluorescent semiconductor nanoparticles (NPs) or quantum dots (QDs) has prompted the development of new, cheap and safer methods that allow generating QDs with improved biocompatibility.
Juan P Monrás, Víctor Díaz, Denisse Bravo, Rebecca A Montes, Thomas G Chasteen, Igor O Osorio-Román, Claudio C Vásquez, José M Pérez-Donoso   +7 more
doaj   +1 more source

Photomicrographical images of NIH 3T3 cells treated with quantum dots (QDs)-tagged retroviruses

, 2011
(a) and (b) were images taken under bright-field and fluorescent microscopy, respectively, after 24 hours of retroviral transduction. In (c), white circles indicate that QDs along with virus were endocytosed into cellular domain and white arrows indicate
Yu-Chuan Liu (49626), Kye-II Joo (49627), Yu-San Liu (49625), Jin-Oh You (49624), Ching-An Peng (49628)   +4 more
core   +1 more source

Improving the thermal resistance of fluorescent CsPb(Br,I)3 perovskite quantum dots by surface modification with perfluorodecanoic acid

Royal Society Open Science, 2022
CsPb(Br,I)3 quantum dots (QDs) show application potential for optoelectronic devices. However, their thermal degradation is a significant problem. In this work, the effects of perfluorodecanoic acid (PFDA) modification on the photoluminescence (PL) and ...
Yoshiki Iso, Momoko Eri, Risako Hiroyoshi, Kensho Kano, Tetsuhiko Isobe   +4 more
doaj   +1 more source

Modification of QDs with MPA.

, 2015
(a) Zeta potential of MPA-QDs and QDs. The QDs surface had no charge, but this surface became negative after modification with MPA; (b) Gel electrophoresis of MPA-QDs and QDs in the presence of an electric field.
Ye Jin (286793), Xueping Yao (798842), Suizhong Cao (690484), Xia Feng (179439), Dan Yan (246385), Shiqi Sun (416734), Huichen Guo (665818), Bin Wang (30851)   +7 more
core   +1 more source

qd-Type Methods for Quasiseparable Matrices [PDF]

SIAM Journal on Matrix Analysis and Applications, 2011
In the last few years many numerical techniques for computing eigenvalues of structured rank matrices have been proposed. Most of them are based on QR iterations since, in the symmetric case, the rank structure is preserved and high accuracy is guaranteed.
Roberto Bevilacqua, Enrico Bozzo, Gianna M. Del Corso   +2 more
openaire   +3 more sources