Results 211 to 220 of about 154,336 (266)

Oxygels: Tunable Phosphorescent Hydrogels for Cherenkov‐Excited Luminescence Imaging (CELI) of Oxygen

Advanced Healthcare Materials, EarlyView.
Biocompatible hydrogels with covalently embedded near‐infrared phosphorescent probes enable local tissue pO2 quantification by means of Cherenkov‐excited luminescence imaging (CELI), where optical excitation occurs within tissues upon irradiation with high‐energy electron beams.
Simin Belali, Marien Iliza Ochoa Mendoza, Matthew S. Reed, Danylo Mykhalchuk, Annemarie Lang, Joel D. Boerckel, Brian W. Pogue, Sergei A. Vinogradov   +7 more
wiley   +1 more source

Rare‐Earth–Functionalized Carbon Dot Hydrogels as Mechanically Robust Antibacterial Wound Dressings

Advanced Healthcare Materials, EarlyView.
The schematic depicts a dynamically cross‐linked PVA hydrogel network in which reversible borate ester bonds and hydrogen‐bonding interactions integrate lanthanum‐doped carbon dots (La‐CDs) and dipotassium glycyrrhizinate (DPG) to form a mechanically robust, multifunctional matrix.
Shih‐Han Tsai, Ramadhass Keerthika Devi, Muthusankar Ganesan, Guo‐Ping Chang Chien, Chun Che Lin   +4 more
wiley   +1 more source

The antibacterial efficiency of Chitosan photodynamically activated Phycocyanin, and Morinda Oleifera against S.mutans and the bonding strength between composite resin and caries-affected dentin. [PDF]

Pak J Med Sci
Alanazi AM, Khan AA, Mahmood A, Kamal MA, Baig EA.   +4 more
europepmc   +1 more source

The effect of repeated baking of porcelain on its bonding strength to a Co-Cr alloy 3D-printed by selective laser melting. [PDF]

Saudi Dent J
Al Helou H, Kassis J, Zaidani W, Bylasani T.   +3 more
europepmc   +1 more source

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Bond Strengths:  The Importance of Hyperconjugation

Organic Letters, 2006
[Structure: see text] Gronert (J. Org. Chem. 2006, 71, 1209) has challenged the importance of hyperconjugation in determining C-H bond dissociation enthalpies (BDEs) in alkanes. Electron paramaganetic resonance spectra of H3CCH2*, (H3C)2CH*, and (H3C)3C* show significant positive spin on their beta-H3C groups' hydrogens. A 55%/45% partitioning of these
Ingold, K. U., DiLabio, Gino A.
openaire   +2 more sources

Bond strengths of dentine bonding agents to dentine

British Dental Journal, 1992
This study assessed comparatively the tensile bond strengths to dentine of four resin dentine bonding agents. Flat surfaces were produced in the occlusal dentine of human third molars, finished with 600-grit paper and prepared for bonding to Silux Plus composite with Gluma, Prisma Universal Bond 2, Scotchbond 2 and Tenure.
M, Jamil, Y E, Aboush, R J, Elderton
openaire   +2 more sources

Bond strength and durability of porcelain bonding systems

The Journal of Prosthetic Dentistry, 1996
Because the most effective bonding system for ceramic restorations has not been documented, this study examined bond strength and durability of bonding systems joined to a feldspathic porcelain. Disks of porcelain specimens were fired on refractory investment materials and were air-abraded with alumina.
H, Kato, H, Matsumura, T, Tanaka, M, Atsuta   +3 more
openaire   +2 more sources

Bond strengths of resin-bonded metal castings

Dental Materials, 1985
Abstract Composite resin-retained appliances are susceptible to failure at the resin-metal interface. The objective of this study was to evaluate bond strengths of perforated and electrolytically etched framework designs by subjecting them to tensile and shear loading. Shear bond strengths were always higher than tensile bond strengths.
J.R. Sturdevant, W.D. Brunson, C.F. Brantleys, John R. Sturdevant   +3 more
openaire   +2 more sources

Orthodontic bonding to porcelain—Bond strength and refinishing

American Journal of Orthodontics and Dentofacial Orthopedics, 1988
Glazed porcelain surfaces are not amenable to resin penetration for orthodontic bonding. The aims of this study were to evaluate (1) the bond strengths of two orthodontic composite materials to treated porcelain surfaces, (2) the effect of thermocycling, and (3) the porcelain surfaces after refinishing.
G A, Smith, P, McInnes-Ledoux, W R, Ledoux, R, Weinberg   +3 more
openaire   +2 more sources

Metal-ceramic bond strength

Acta Odontologica Scandinavica, 1996
No currently available bond test for dental metal ceramic systems has yet gained general acceptance. Such a bond test cannot be established without careful analysis of the stress distribution within the adherence region. The objective of the present study was to establish a mechanical shear stress test and combine the results with a finite element ...
M, Persson, M, Bergman
openaire   +2 more sources