Because micro-organisms play a crucial role in the development of pulpal and periapical disease, the prognosis of endodontic therapy is intimately related to the presence of bacteria within the root canal system. Micro-organisms may persist in the apical region of the root canal system despite chemomechanical preparation. The usefulness of Class IV lasers (such as Nd:YAG, diode, KTP and Er:YAG)...

The art therapytechniques are increasinglyrenewed by the use of new instrumentsas new media (video and photo).Working with imagesis a powerful way to increase the client’sawareness in psychotherapy, because the perceptiveactcouldbringthe therapist to construct with the client the story of his life. The familypictures or personal snapshots are precious and important to stimulate the creative pro...

Uniform gold nanostars (Au NS) were conjugated with cyclic RGD (cRGD) and near infrared (NIR) fluorescence probe (MPA) or anti-cancer drug (DOX) to obtain multi-functional nanoconstructs, Au-cRGD-MPA and Au-cRGD-DOX respectively. The NIR contrast agent Au-cRGD-MPA was shown to have low cytotoxicity. Using tumor cells and tumor bearing mice, these imaging nanoparticles demonstrated favorable tum...

A modeling study on the energy absorption and heat transfer of concentric nanoparticles under localized surface plasma resonance (SPR) conditions is presented. A generalized theoretical formulation for multi-scattering of electromagnetic waves by multilayered nanoparticle is employed to determine the heat source first, and then starting with the Eigen functions, direct and inverse integral tran...

Citation Deng, D. S. et al. “Novel fabrication and optoelectronic property of semiconductor filaments by optical-fiber thermal drawing.” Nanoengineering: Fabrication, Properties, Optics, and Devices VI. Ed. Elizabeth A. Dobisz & Louay A. Eldada. San Diego, CA, USA: SPIE, 2009. 740204-3. © 2009 SPIE As Published http://dx.doi.org/10.1117/12.827379 Publisher Society of Photo-optical Instrumentati...

We report photochromic donor-acceptor Stenhouse adducts (DASAs) capable of fully reversible photoisomerization with visible light in organic solvents including chloroform, acetonitrile and benzene. The rates of photoisomerization and thermal reversion can be tuned by altering the electronics of the donor adduct. X-Ray crystallography and photo-NMR experiments unambiguously establish molecular s...

tenfold thermal stabilization by confining networks of photo-polymerized reactive mesogens A. Labeeb, H. F. Gleeson, and T. Hegmann Liquid Crystal Institute, Chemical Physics Interdisciplinary Program, Kent State University, Kent, Ohio 44242, USA Microwave Physics and Dielectrics, National Research Center, Dokki 12622, Egypt School of Physics and Astronomy, University of Leeds, Leeds LS2 9JT, U...

Two novel symmetrical blue squaraine sensitizers were synthesized, which exhibit panchromatic light harvesting and a record efficiency over 6% with Jsc exceeding 14 mA cm(-2), and Voc over 620 mV under 1 sun. Their color, low cost, easiness of synthesis, and relatively high photo- and thermal stability open up the way for commercial applications.

In this communication, we report a composite macroporous hydrogel sheet that can rapidly transform into multiple 3D shapes in response to near-infrared (NIR) light on demand. The transformation relies on the photo-thermal-induced asymmetric shrinking of the hydrogel material, which is further verified by finite element modeling.