Browsing Faculty of Arts and Sciences by Author "Bawendi, Moungi G."

Now showing items 1-15 of 15

    • Alternating layer addition approach to CdSe/CdS core/shell quantum dots with near-unity quantum yield and high on-time fractions 

      Greytak, Andrew B.; Allen, Peter M.; Liu, Wenhao; Zhao, Jing; Young, Elizabeth R.; Popovic, Zoran; Walker, Brian J.; Nocera, Daniel; Bawendi, Moungi G. (Royal Society of Chemistry (RSC), 2012)
      We report single-particle photoluminescence (PL) intermittency (blinking) with high on-time fractions in colloidal CdSe quantum dots (QD) with conformal CdS shells of 1.4 nm thickness, equivalent to approximately 4 CdS ...

    • Angiotensin inhibition enhances drug delivery and potentiates chemotherapy by decompressing tumour blood vessels 

      Chauhan, Vikash P.; Martin, John D.; Liu, Hao; Lacorre, Delphine A.; Jain, Saloni R.; Kozin, Sergey V.; Stylianopoulos, Triantafyllos; Mousa, Ahmed S.; Han, Xiaoxing; Adstamongkonkul, Pichet; Popović, Zoran; Huang, Peigen; Bawendi, Moungi G.; Boucher, Yves; Jain, Rakesh K. (Nature Pub. Group, 2013)
      Cancer and stromal cells actively exert physical forces (solid stress) to compress tumour blood vessels, thus reducing vascular perfusion. Tumour interstitial matrix also contributes to solid stress, with hyaluronan ...

    • Coherent Exciton Dynamics in Supramolecular Light-Harvesting Nanotubes Revealed by Ultrafast Quantum Process Tomography 

      Yuen-Zhou, Joel; Arias, Dylan H.; Eisele, Dorthe M.; Steiner, Colby P.; Krich, Jacob J.; Bawendi, Moungi G.; Nelson, Keith A.; Aspuru-Guzik, Alan (American Chemical Society (ACS), 2014)
      Long-lived exciton coherences have been recently observed in photosynthetic complexes via ultrafast spectroscopy, opening exciting possibilities for the study and design of coherent exciton transport. Yet, ambiguity in the ...

    • Compact Biocompatible Quantum Dots via RAFT-Mediated Synthesis of Imidazole-Based Random Copolymer Ligand 

      Liu, Wenhao; Greytak, Andrew B.; Lee, Jungmin; Wong, Cliff R.; Park, Jongnam; Marshall, Lisa F.; Jiang, Wen; Curtin, Peter N.; Ting, Alice Y.; Nocera, Daniel; Fukumura, Dai; Jain, Rakesh K.; Bawendi, Moungi G. (American Chemical Society (ACS), 2010)
      We present a new class of polymeric ligands for quantum dot (QD) water solubilization to yield biocompatible and derivatizable QDs with compact size (~10-12 nm diameter), high quantum yields (>50%), excellent stability ...

    • Conformational Control of Energy Transfer: A Mechanism for Biocompatible Nanocrystal-Based Sensors 

      Kay, Euan R.; Lee, Jungmin; Nocera, Daniel; Bawendi, Moungi G. (Wiley-Blackwell, 2012)
      Fold-up fluorophore: A new paradigm for designing self-referencing fluorescent nanosensors is demonstrated by interfacing a pH-triggered molecular conformational switch with quantum dots. Analytedependent, large-amplitude ...

    • Energy transfer of CdSe/ZnS nanocrystals encapsulated with rhodamine-dye functionalized poly(acrylic acid) 

      Somers, Rebecca C.; Snee, Preston T.; Bawendi, Moungi G.; Nocera, Daniel (Elsevier BV, 2012)
      Energy transfer between a CdSe/ZnS nanocrystal (NC) donor and a rhodamine isothiocyanate (RITC) acceptor has been achieved via a functionalized poly(acrylic acid) (PAA) encapsulating layer over the surface of the NC. The ...

    • Incorporation of Iron Oxide Nanoparticles and Quantum Dots into Silica Microspheres 

      Insin, Numpon; Tracy, Joseph B.; Lee, Hakho; Zimmer, John P.; Westervelt, Robert M.; Bawendi, Moungi G. (American Chemical Society, 2008)
      We describe the synthesis of magnetic and fluorescent silica microspheres fabricated by incorporating maghemite (γ-Fe2O3) nanoparticles (MPs) and CdSe/CdZnS core/shell quantum dots (QDs) into a silica shell around preformed ...

    • Magneto-Fluorescent Core-Shell Supernanoparticles 

      Chen, Ou; Riedemann, Lars; Etoc, Fred; Herrmann, Hendrik; Coppey, Mathieu; Barch, Mariya; Farrar, Christian T.; Zhao, Jing; Bruns, Oliver T.; Wei, He; Guo, Peng; Cui, Jian; Jensen, Russ; Chen, Yue; Harris, Daniel K.; Cordero, Jose M.; Wang, Zhongwu; Jasanoff, Alan; Fukumura, Dai; Reimer, Rudolph; Dahan, Maxime; Jain, Rakesh K.; Bawendi, Moungi G. (2014)
      Magneto-fluorescent particles have been recognized as an emerging class of materials that exhibit great potential in advanced applications. However, synthesizing such magneto-fluorescent nanomaterials that simultaneously ...

    • Metabolic Tumor Profiling with pH, Oxygen, and Glucose Chemosensors on a Quantum Dot Scaffold 

      Lemon, Christopher M.; Curtin, Peter N.; Somers, Rebecca C.; Greytak, Andrew B.; Lanning, Ryan M.; Jain, Rakesh K.; Bawendi, Moungi G.; Nocera, Daniel (American Chemical Society (ACS), 2014)
      Acidity, hypoxia and glucose levels characterize the tumor microenvironment rendering pH, pO2 and pGlucose, respectively, important indicators of tumor health. To this end, understanding how these parameters change can be ...

    • Micelle-Encapsulated Quantum Dot-Porphyrin Assemblies asin VivoTwo-Photon Oxygen Sensors 

      Lemon, Christopher M.; Karnas, Elizabeth; Han, Xiaoxing; Bruns, Oliver T.; Kempa, Thomas; Fukumura, Dai; Bawendi, Moungi G.; Jain, Rakesh K.; Duda, Dan Gabriel; Nocera, Daniel (American Chemical Society (ACS), 2015)
      Micelles have been employed to encapsulate the supramolecular assembly of quantum dots with palladium(II) porphyrins for the quantification of O2 levels in aqueous media and in vivo. Förster resonance energy transfer from ...

    • A nanocrystal-based ratiometric pH sensor for natural pH ranges 

      Somers, Rebecca C.; Lanning, Ryan M.; Snee, Preston T.; Greytak, Andrew B.; Jain, Rakesh K.; Bawendi, Moungi G.; Nocera, Daniel (Royal Society of Chemistry (RSC), 2012)
      A ratiometric fluorescent pH sensor based on CdSe/CdZnS nanocrystal quantum dots (NCs) has been designed for biological pH ranges. The construct is formed from the conjugation of a pH dye (SNARF) to NCs coated with a ...

    • A Nanoparticle Size Series for In Vivo Fluorescence Imaging 

      Popovic, Zoran; Liu, Wenhao; Chauhan, Vikash Pal Singh; Lee, Jungmin; Wong, Cliff; Greytak, Andrew B.; Insin, Numpon; Nocera, Daniel; Fukumura, Dai; Jain, Rakesh K.; Bawendi, Moungi G. (Wiley-Blackwell, 2010)

    • Normalization of tumour blood vessels improves the delivery of nanomedicines in a size-dependent manner 

      Chauhan, Vikash Pal Singh; Stylianopoulos, Triantafyllos; Martin, John D.; Popović, Zoran; Chen, Ou; Kamoun, Walid S.; Bawendi, Moungi G.; Fukumura, Dai; Jain, Rakesh K. (Springer Nature, 2012)
      The blood vessels of cancerous tumours are leaky1–3 and poorly organized4–7. This can increase the interstitial fluid pressure (IFP) inside tumours and reduce blood supply to them, which impairs drug delivery8–9. Anti-angiogenic ...

    • Two-Photon Absorbing Nanocrystal Sensors for Ratiometric Detection of Oxygen 

      McLaurin, Emily J.; Greytak, Andrew B.; Bawendi, Moungi G.; Nocera, Daniel (American Chemical Society (ACS), 2009)
      Two nanocrystal-osmium(II) polypyridyl (NC-Os(II)PP) conjugates have been designed to detect oxygen in biological environments. Polypyridines appended with a single free amine were linked with facility to a carboxylic acid ...

    • Two-Photon Oxygen Sensing with Quantum Dot-Porphyrin Conjugates 

      Lemon, Christopher M.; Karnas, Elizabeth; Bawendi, Moungi G.; Nocera, Daniel (American Chemical Society (ACS), 2013)
      Supramolecular assemblies of a quantum dot (QD) associated to palladium(II) porphyrins have been developed to detect oxygen (pO2) in organic solvents. Palladium porphyrins are sensitive in the 0–160 torr range, making them ...