Results 121 to 130 of about 24,885 (302)

Influence of luminescent graphene quantum dots on trypsin activity

, 2018
Tanveer A Tabish,1,2 Md Zahidul I Pranjol,2 Ilayda Karadag,1 David W Horsell,1 Jacqueline L Whatmore,2 Shaowei Zhang1 1College of Engineering, Mathematics and Physical Sciences, University of Exeter, Exeter, UK; 2Institute of Biomedical and Clinical ...
Whatmore JL, Horsell DW, Karadag I, Zhang S, Tabish TA, Pranjol MZI   +5 more
core  

Scanning Tunneling Microscopy of Graphene Quantum Dots [PDF]

, 2017
Quantum confinement of Dirac fermions is an important frontier in graphene research. In this dissertation, we report on our use of a scanning tunneling microscope (STM) to investigate electrostatically confined Dirac fermions in graphene quantum dots. We
Lee, Juwon
core  

Advances in Magnesium‐Based Thermoelectrics: A Critical Review

Advanced Materials, EarlyView.
Magnesium‐based thermoelectric materials have emerged as promising candidates for low‐to‐mid‐temperature energy conversion due to their abundance, low cost, and competitive performance. This review summarizes recent advances in Mg3X2, MgAgSb, and Mg2X systems, covering transport mechanisms, fabrication strategies, stability challenges, and device ...
Li‐Min Zhang, Li Zhang, Nan‐Hai Li, Yan‐Ling Yang, Xiao‐Lei Shi, Zhi‐Gang Chen   +5 more
wiley   +1 more source

Selenium‐Bearing Conducting Polymer/Graphene Quantum Dot Hybrid for Enzyme Based Electrochemical Biosensor Targeting Tyrosinase Inhibition Via Rosmarinic Acid

ChemistryOpen
In this present study, an enzyme‐based amperometric nanobiosensor was designed and fabricated through the immobilization of tyrosinase onto a selenium‐bearing conducting polymer (poly[BDT‐alt‐(TP;BSe)]), in combination with NH2‐functionalized graphene ...
Raghad Alhardan, Gulsu Keles, Sevki Can Cevher, Derya Altay, Panagiota M. Kalligosfyri, Sinem Aslan Erdem, Ali Cirpan, Stefano Cinti, Sevinc Kurbanoglu   +8 more
doaj   +1 more source

Ratiometric Mycotoxin Detection in Living Plants With Dual‐Emissive Nanosensors

Advanced Materials, EarlyView.
A minimally invasive microneedle patch integrates carbon dot‐embedded metal–organic frameworks as nanosensors to detect a key fungal toxin in living plants. The nanosensor produces a ratiometric fluorescence signal that enables early, non‐destructive diagnosis of fungal infection before visible symptoms, offering a new biomaterials‐based strategy for ...
Yuliang Li, Di Shen, Ziyang Huang, Suppanat Puangpathumanond, Calvin Thenarianto, Yue Zhao, Jolly Madathiparambil Saju, Rajani Sarojam, Dongmei Zhou, Tedrick Thomas Salim Lew   +9 more
wiley   +1 more source

Excited States in Bilayer Graphene Quantum Dots

Physical Review Letters, 2019
We report on ground- and excited state transport through an electrostatically defined few-hole quantum dot in bilayer graphene in both parallel and perpendicular applied magnetic fields. A remarkably clear level scheme for the two-particle spectra is found by analyzing finite bias spectroscopy data within a two-particle model including spin and valley ...
Kurzmann, A., Eich, M., Overweg, H., Mangold, M., Herman, F., Rickhaus, P., Pisoni, R., Lee, Y., Garreis, R., Tong, C., Watanabe, K., Taniguchi, T., Ensslin, K., Ihn, T.   +13 more
openaire   +6 more sources

Graphene Quantum Dots Produced by Microfluidization

, 2016
Graphene Quantum Dots Produced by ...
Michael Shtein (1441213), Oren Regev (1270449), Matat Buzaglo (1441210)   +2 more
core   +1 more source

Tailoring Phonon‐Driven Responses in α‐MoO3 through Isotopic Enrichment

Advanced Materials, EarlyView.
ABSTRACT The implementation of polaritonic materials into nanoscale devices requires selective tuning of parameters to realize desired spectral or thermal responses. One robust material, α‐MoO3, an orthorhombic crystal boasting three distinct phonon dispersions, provides three polaritonic dispersions of hyperbolic phonon polaritons (HPhPs) across the ...
Thiago S. Arnaud, Ryan W. Spangler, Johnathan D. Georgaras, Jonah B. Haber, Daniel Hirt, Maximilian Obst, Gonzalo Álvarez‐Pérez, Mackey Long III, Felix G. Kaps, Jakob Wetzel, Courtney Ragle, John E. Buchner, Youngji Kim, Aditha S. Senarath, Richarda Niemann, Mingze He, Giulia Carini, Unai Arregui‐Leon, Akash C. Behera, Ramachandra Bangari, Nihar Sahoo, Niels C. Brumby, J. Michael Klopf, Martin Wolf, Lukas M. Eng, Susanne C. Kehr, Thomas G. Folland, Alexander Paarmann, Patrick E. Hopkins, Felipe Jornada, Jon‐Paul Maria, Joshua D. Caldwell   +31 more
wiley   +1 more source

Engineered Heparinized GQDS/HPEI–Polyamide Membrane for Bilirubin Removal via One Step Anti Coagulation

Advanced Materials Interfaces, EarlyView.
A multifunctional heparinized polyamide membrane embedded with graphene quantum dots (GQDs) and hyperbranched polyethyleneimine (HPEI) is engineered for efficient bilirubin removal via a one‐step anticoagulation–adsorption process. The membrane demonstrates enhanced hemocompatibility, prolonged clotting times, and high bilirubin adsorption capacity ...
Abdur Rehman Mushtaq Ahmad, Maria Wasim, Aneela Sabir, Muhammad Shafiq, Syed Abdul Basit Shah, Maoz Maoz, Vanni Lughi   +6 more
wiley   +1 more source

Peptide-Decorated Tunable-Fluorescence Graphene Quantum Dots

, 2017
We report here the synthesis of graphene quantum dots with tunable size, surface chemistry, and fluorescence properties. In the size regime 15–35 nm, these quantum dots maintain strong visible light fluorescence (mean quantum yield of 0.64) and a high ...
Abdelkrim Benabbas (1322613), Wentao Liang (112666), Meni Wanunu (1338426), Hao-Yu Greg Lin (3827047), Bedanga Sapkota (3827050), Paul Champion (3827053)   +5 more
core   +1 more source