Now showing items 178-197 of 245

    • Scaffolds to Control Inflammation and Facilitate Dental Pulp Regeneration 

      Colombo, John S.; Moore, Amanda N.; Hartgerink, Jeffrey D.; D'Souza, Rena N. (2014)
      In dentistry, the maintenance of a vital dental pulp is of paramount importance because teeth devitalized by root canal treatment may become more brittle and prone to structural failure over time. Advanced carious lesions ...
    • Scattering Spectra of Single Gold Nanoshells 

      Nehl, Colleen L.; Grady, Nathaniel K.; Goodrich, Glenn P.; Tam, Felicia; Halas, Naomi J.; Hafner, Jason H. (2004-11-04)
    • Sequence Effects of Self-Assembling MultiDomain Peptide Hydrogels on Encapsulated SHED Cells 

      Kang, Marci K.; Colombo, John S.; D’Souza, Rena N.; Hartgerink, Jeffrey D. (2014)
      Here we report three new nanofibrous, self-assembling multidomain peptide (MDP) sequences and examine the effect of sequence on the morphology and expansion of encapsulated Stem cells from Human Exfoliated Deciduous teeth ...
    • Sign problem in full configuration interaction quantum Monte Carlo: Linear and sublinear representation regimes for the exact wave function 

      Shepherd, James J.; Scuseria, Gustavo E.; Spencer, James S. (2014)
      We investigate the sign problem for full configuration interaction quantum Monte Carlo (FCIQMC), a stochastic algorithm for finding the ground-state solution of the Schrödinger equation with substantially reduced computational ...
    • A single molecule immunoassay by localized surface plasmon resonance 

      Mayer, Kathryn M.; Hao, Feng; Lee, Seunghyun; Nordlander, Peter; Hafner, Jason H. (2010)
    • Single-Molecule FRET Studies of HIV TAR–DNA Hairpin Unfolding Dynamics 

      Chen, Jixin; Poddar, Nitesh K.; Tauzin, Lawrence J.; Cooper, David; Kolomeisky, Anatoly B.; Landes, Christy F. (2014)
      We directly measure the dynamics of the HIV trans-activation response (TAR)-DNA hairpin with multiple loops using single-molecule Förster resonance energy transfer (smFRET) methods. Multiple FRET states are identified that ...
    • Single-Particle Absorption Spectroscopy by Photothermal Contrast 

      Yorulmaz, Mustafa; Nizzero, Sara; Hoggard, Anneli; Wang, Lin-Yung; Cai, Yiyu; Su, Man-Nung; Chang, Wei-Shun; Link, Stephan (2015)
      Removing effects of sample heterogeneity through single-molecule and single-particle techniques has advanced many fields. While background free luminescence and scattering spectroscopy is widely used, recording the absorption ...
    • Single-Particle Spectroscopy Reveals Heterogeneity in Electrochemical Tuning of the Localized Surface Plasmon 

      Byers, Chad P.; Hoener, Benjamin S.; Chang, Wei-Shun; Yorulmaz, Mustafa; Link, Stephan; Landes, Christy F. (2014)
      A hyperspectral imaging method was developed that allowed the identification of heterogeneous plasmon response from 50 nm diameter gold colloidal particles on a conducting substrate in a transparent three-electrode ...
    • Singlet-paired coupled cluster theory for open shells 

      Gomez, John A.; Henderson, Thomas M.; Scuseria, Gustavo E. (2016)
      Restricted single-reference coupled cluster theory truncated to single and double excitations accurately describes weakly correlated systems, but often breaks down in the presence of static or strongcorrelation. Good coupled ...
    • Size-dependent impacts of silver nanoparticles on the lifespan, fertility, growth, and locomotion of Caenorhabditis elegans 

      Contreras, Elizabeth Q.; Puppala, Hema L.; Escalera, Gabriela; Zhong, Weiwei; Colvin, Vicki L. (2014)
      The increased bioavailability of nanoparticles engineered for good dispersion in water may have biological and environmental impacts. To examine this issue, the authors assessed the biological effects in nematodes as they ...
    • Solutions of the Two-Dimensional Hubbard Model: Benchmarks and Results from a Wide Range of Numerical Algorithms 

      LeBlanc, J.P.F.; Antipov, Andrey E.; Becca, Federico; Bulik, Ireneusz W.; Chan, Garnet Kin-Lic; Chung, Chia-Min; Deng, Youjin; Ferrero, Michel; Henderson, Thomas M.; Jiménez-Hoyos, Carlos A.; Kozik, E.; Liu, Xuan-Wen; Millis, Andrew J.; Prokof’ev, N.V.; Qin, Mingpu; Scuseria, Gustavo E.; Shi, Hao; Svistunov, B.V.; Tocchio, Luca F.; Tupitsyn, I.S.; White, Steven R.; Zhang, Shiwei; Zheng, Bo-Xiao; Zhu, Zhenyue; Gull, Emanuel; Simons Collaboration on the Many-Electron Problem (2015)
      Numerical results for ground-state and excited-state properties (energies, double occupancies, and Matsubara-axis self-energies) of the single-orbital Hubbard model on a two-dimensional square lattice are presented, in ...
    • Stable confinement of PET & MR agents within carbon nanotubes for bimodal imaging 

      Cisneros, Brandon T.; Law, Justin J.; Matson, Michael L.; Azhdarinia, Ali; Sevick-Muraca, Eva M.; Wilson, Lon J. (2014)
      Simultaneous PET/MR imaging has recently been introduced to the clinic and dual PET/MR imaging probes are rare and of growing interest. We have developed a strategy for producing multimodal probes based on a carbon nanotube ...
    • Stargazin Modulation of AMPA Receptors 

      Shaikh, Sana A.; Dolino, Drew M.; Lee, Garam; Chatterjee, Sudeshna; MacLean, David M.; Flatebo, Charlotte; Landes, Christy F.; Jayaraman, Vasanthi (2016)
      Fast excitatory synaptic signaling in the mammalian brain is mediated by AMPA-type ionotropic glutamate receptors. In neurons, AMPA receptors co-assemble with auxiliary proteins, such as stargazin, which can markedly alter ...
    • Statistical distribution of the electric field-driven switching of the Verwey state in Fe3O4 

      Fursina, A.A.; Sofin, R.G.S.; Shvets, I.V.; Natelson, D. (2012)
      The insulating state of magnetite (Fe3O4) can be disrupted by a sufficiently large dc electric field. Pulsed measurements are used to examine the kinetics of this transition. Histograms of the switching voltage show a ...
    • Stochastic Kinetics on Networks: When Slow Is Fast 

      Li, Xin; Kolomeisky, Anatoly B.; Valleriani, Angelo (2014)
      Most chemical and biological processes can be viewed as reaction networks in which different pathways often compete kinetically for transformation of substrates into products. An enzymatic process is an example of such ...
    • Strong, Light, Multifunctional Fibers of Carbon Nanotubes with Ultrahigh Conductivity 

      Behabtu, Natnael; Young, Colin C.; Tsentalovich, Dmitri E.; Kleinerman, Olga; Wang, Xuan; Ma, Anson W.K.; Bengio, E. Amram; ter Waarbeek, Ron F.; de Jong, Jorrit J.; Hoogerwerf, Ron E.; Fairchild, Steven B.; Ferguson, John B.; Maruyama, Benji; Kono, Junichiro; Talmon, Yeshayahu; Cohen, Yachin; Otto, Marcin J.; Pasquali, Matteo (2013)
      Broader applications of carbon nanotubes to real-world problems have largely gone unfulfilled because of difficult material synthesis and laborious processing. We report high-performance multifunctional carbon nanotube ...
    • Structural and Optical Properties of Discrete Dendritic Pt Nanoparticles on Colloidal Au Nanoprisms 

      Leary, Rowan K.; Kumar, Anjli; Straney, Patrick J.; Collins, Sean M.; Yazdi, Sadegh; Dunin-Borkowski, Rafal E.; Midgley, Paul A.; Millstone, Jill E.; Ringe, Emilie (2016)
      Catalytic and optical properties can be coupled by combining different metals into nanoscale architectures where both the shape and composition provide fine-tuning of functionality. Here, discrete, small Pt nanoparticles ...
    • Structural Basis for the Stereochemical Control of Amine Installation in Nucleotide Sugar Aminotransferases 

      Wang, Fengbin; Singh, Shanteri; Xu, Weijun; Helmich, Kate E.; Miller, Mitchell D.; Cao, Hongnan; Bingman, Craig A.; Thorson, Jon S.; Phillips, George N. Jr. (2015)
      Sugar aminotransferases (SATs) are an important class of tailoring enzymes that catalyze the 5'-pyridoxal phosphate (PLP)-dependent stereo- and regiospecific installation of an amino group from an amino acid donor (typically ...
    • Structural characterization of AtmS13, a putative sugar aminotransferase involved in indolocarbazole AT2433 aminopentose biosynthesis 

      Singh, Shanteri; Kim, Youngchang; Wang, Fengbin; Bigelow, Lance; Endres, Michael; Kharel, Madan K.; Babnigg, Gyorgy; Bingman, Craig A.; Joachimiak, Andrzej; Thorson, Jon S.; Phillips, George N. Jr. (2015)
      AT2433 from Actinomadura melliaura is an indolocarbazole antitumor antibiotic structurally distinguished by its unique aminodideoxypentose-containing disaccharide moiety. The corresponding sugar nucleotide-based biosynthetic ...
    • Structural chemistry of fluoride and oxofluoride complexes of titanium(IV) 

      Davidovich, Ruven L.; Marinin, Dmitry V.; Stavila, Vitalie; Whitmire, Kenton H. (2015)
      The crystal structures of 119 fluoride and oxofluoride complexes of titanium(IV) (88 fluoride and 31 oxofluoride compounds) published to date have been analyzed and reviewed. Depending on the degree and nature of the ...