Search Results - "Greytak, Andrew B."

Energy Transfer on Demand: Photoswitch-Directed Behavior of Metal–Porphyrin Frameworks by Williams, Derek E, Rietman, Joseph A, Maier, Josef M, Tan, Rui, Greytak, Andrew B, Smith, Mark D, Krause, Jeanette A, Shustova, Natalia B

“…In this paper, a photochromic diarylethene-based derivative that is coordinatively immobilized within an extended porphyrin framework is shown to maintain its…”
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Connecting Wires: Photoinduced Electronic Structure Modulation in Metal–Organic Frameworks by Dolgopolova, Ekaterina A, Galitskiy, Vladimir A, Martin, Corey R, Gregory, Haley N, Yarbrough, Brandon J, Rice, Allison M, Berseneva, Anna A, Ejegbavwo, Otega A, Stephenson, Kenneth S, Kittikhunnatham, Preecha, Karakalos, Stavros G, Smith, Mark D, Greytak, Andrew B, Garashchuk, Sophya, Shustova, Natalia B

“…Electronic structure modulation of metal–organic frameworks (MOFs) through the connection of linker “wires” as a function of an external stimulus is reported…”
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Purification of Quantum Dots by Gel Permeation Chromatography and the Effect of Excess Ligands on Shell Growth and Ligand Exchange by Shen, Yi, Gee, Megan Y, Tan, Rui, Pellechia, Perry J, Greytak, Andrew B

“…This article describes the use of gel permeation chromatography (GPC) as a means to separate natively capped colloidal CdSe and CdSe/Cd x Zn1–x S quantum dots…”
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A Bio-inspired Approach for Chromophore Communication: Ligand-to-Ligand and Host-to-Guest Energy Transfer in Hybrid Crystalline Scaffolds by Dolgopolova, Ekaterina A., Williams, Derek E., Greytak, Andrew B., Rice, Allison M., Smith, Mark D., Krause, Jeanette A., Shustova, Natalia B.

“…Efficient multiple‐chromophore coupling in a crystalline metal–organic scaffold was achieved by mimicking a protein system possessing 100 % energy‐transfer…”
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Compact Biocompatible Quantum Dots via RAFT-Mediated Synthesis of Imidazole-Based Random Copolymer Ligand by 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 G, Fukumura, Dai, Jain, Rakesh K, Bawendi, Moungi G

“…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…”
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Two-Photon Absorbing Nanocrystal Sensors for Ratiometric Detection of Oxygen by McLaurin, Emily J, Greytak, Andrew B, Bawendi, Moungi G, Nocera, Daniel G

“…Two nanocrystal-osmium(II) polypyridyl (NC-Os(II)PP) conjugates have been designed to detect oxygen in biological environments. Polypyridines appended with a…”
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Purification and In Situ Ligand Exchange of Metal-Carboxylate-Treated Fluorescent InP Quantum Dots via Gel Permeation Chromatography by Roberge, Adam, Stein, Jennifer L, Shen, Yi, Cossairt, Brandi M, Greytak, Andrew B

“…Recently the addition of M2+ Lewis acids (M = Cd, Zn) to InP quantum dots (QDs) has been shown to enhance the photoluminescence quantum yield (PL QY). Here we…”
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Copolymerization and Synthesis of Multiply Binding Histamine Ligands for the Robust Functionalization of Quantum Dots by Viswanath, Anand, Shen, Yi, Green, Alexandra N, Tan, Rui, Greytak, Andrew B, Benicewicz, Brian C

“…The polymeric functionalization of quantum dots via ligand exchange is a robust method for the preparation of stable fluorescent particles with high quantum…”
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Fulleretic Well-Defined Scaffolds: Donor-Fullerene Alignment Through Metal Coordination and Its Effect on Photophysics by Williams, Derek E., Dolgopolova, Ekaterina A., Godfrey, Danielle C., Ermolaeva, Evgeniya D., Pellechia, Perry J., Greytak, Andrew B., Smith, Mark D., Avdoshenko, Stanislav M., Popov, Alexey A., Shustova, Natalia B.

“…Herein, we report the first example of a crystalline metal–donor–fullerene framework, in which control of the donor–fullerene mutual orientation was achieved…”
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Single Crystal to Single Crystal Polymerization of a Self-Assembled Diacetylene Macrocycle Affords Columnar Polydiacetylenes by Xu, Weiwei L, Smith, Mark D, Krause, Jeanette A, Greytak, Andrew B, Ma, Shuguo, Read, Cory M, Shimizu, Linda S

“…This manuscript describes a single-crystal-to-single-crystal polymerization of the dihydrate of diacetylene 1 (1·2H2O) to give an unusual polydiacetylene (PDA)…”
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Hierarchical Corannulene‐Based Materials: Energy Transfer and Solid‐State Photophysics by Rice, Allison M., Fellows, W. Brett, Dolgopolova, Ekaterina A., Greytak, Andrew B., Vannucci, Aaron K., Smith, Mark D., Karakalos, Stavros G., Krause, Jeanette A., Avdoshenko, Stanislav M., Popov, Alexey A., Shustova, Natalia B.

“…We report the first example of a donor–acceptor corannulene‐containing hybrid material with rapid ligand‐to‐ligand energy transfer (ET). Additionally, we…”
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Gel permeation chromatography as a multifunctional processor for nanocrystal purification and on-column ligand exchange chemistry by Shen, Yi, Roberge, Adam, Tan, Rui, Gee, Megan Y, Gary, Dylan C, Huang, Yucheng, Blom, Douglas A, Benicewicz, Brian C, Cossairt, Brandi M, Greytak, Andrew B

“…This article illustrates the use of gel permeation chromatography (GPC, organic-phase size exclusion chromatography) to separate nanocrystals from weakly-bound…”
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Isothermal Titration Calorimetry Resolves Sequential Ligand Exchange and Association Reactions in Treatment of Oleate-Capped CdSe Quantum Dots with Alkylphosphonic Acid by Gee, Megan Y, Shen, Yi, Greytak, Andrew B

“…This article examines a prototypical nanocrystal surface reaction, the replacement of carboxylate ligands with alkylphosphonate on CdSe quantum dots (QDs), in…”
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Size-Dependent PbS Quantum Dot Surface Chemistry Investigated via Gel Permeation Chromatography by Roberge, Adam, Dunlap, John H, Ahmed, Fiaz, Greytak, Andrew B

“…We report the first comprehensive study on the purification of PbS quantum dots (QDs) using gel permeation chromatography (GPC). GPC enables the efficient and…”
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Combined NMR and Isothermal Titration Calorimetry Investigation Resolves Conditions for Ligand Exchange and Phase Transformation in CsPbBr3 Nanocrystals by Abiodun, Sakiru L, Gee, Megan Y, Greytak, Andrew B

“…Inorganic halide perovskite nanocrystals (NCs), such as CsPbBr3 quantum dots, have emerged as an intriguing alternative to traditional semiconductors in…”
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Quantum Yield Regeneration: Influence of Neutral Ligand Binding on Photophysical Properties in Colloidal Core/Shell Quantum Dots by Shen, Yi, Tan, Rui, Gee, Megan Y, Greytak, Andrew B

“…This article describes an experiment designed to identify the role of specific molecular ligands in maintaining the high photoluminescence (PL) quantum yield…”
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Effective Purification of CsPbBr3 Nanocrystals with High Quantum Yield and High Colloidal Stability via Gel Permeation Chromatography by Abiodun, Sakiru L, Pellechia, Perry J, Greytak, Andrew B

“…Inorganic halide perovskites such as CsPbX3 (X = Cl, Br, I) have emerged as an intriguing alternative to chalcogenide and pnictide nanocrystals due to their…”
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Compact Biocompatible Quantum Dots Functionalized for Cellular Imaging by Liu, Wenhao, Howarth, Mark, Greytak, Andrew B, Zheng, Yi, Nocera, Daniel G, Ting, Alice Y, Bawendi, Moungi G

“…We present a family of water-soluble quantum dots (QDs) that exhibit low nonspecific binding to cells, small hydrodynamic diameter, tunable surface charge,…”
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Measuring the Surface Area of Carbon Black Using BET Isotherms: An Experiment in Physical Chemistry by Williams, Joshua H., Gbadomosi, Musbau, Greytak, Andrew B., Myrick, Michael L.

“…We describe an experiment in which students use research-grade instrumentation to collect gas adsorption data in triplicate in a single 3 h laboratory period…”
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Heterometallic Actinide‐Containing Photoresponsive Metal‐Organic Frameworks: Dynamic and Static Tuning of Electronic Properties by Martin, Corey R., Leith, Gabrielle A., Kittikhunnatham, Preecha, Park, Kyoung Chul, Ejegbavwo, Otega A., Mathur, Abhijai, Callahan, Cameron R., Desmond, Shelby L., Keener, Myles R., Ahmed, Fiaz, Pandey, Shubham, Smith, Mark D., Phillpot, Simon R., Greytak, Andrew B., Shustova, Natalia B.

“…Acquiring fundamental knowledge of properties of actinide‐based materials is a necessary step to create new possibilities for addressing the current challenges…”
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