Results 61 to 70 of about 754,167 (302)

Physico-chemical and thermochemical studies of the hydrolytic conversion of amorphous tricalcium phosphate into apatite [PDF]

, 2005
The conversion of amorphous tricalcium phosphate with different hydration ratio into apatite in water at 25 °C has been studied by microcalorimetry and several physical–chemical methods.
Betts, Blumenthal, Bonar, Boskey, Carayon, Christoffersen, Christoffersen, Christofferson, Clemens, Combes, de Bruijn, Eanes, Eanes, Eanes, Feng, Garcia, Gee, Gregory Makowski, Grynpas, Habelitz, Heughebaert, Huffman, Kanazaki, Knaack, Koutsoukos, Layrolle, Lebugle, Lowenstam, Maxian, Meyer, Meyer, Meyer, Nagano, Sauer, Scherrer, Shinn-jyh, Simkiss, Skertic, Somrani, Szivek, Termine, Termine, Termine, Tofighi, Treboux, Tung, Van Blitterswijk, Walton, Weichang, Weng, Weng, Wuthier, Yates   +52 more
core   +4 more sources

Rethinking plastic waste: innovations in enzymatic breakdown of oil‐based polyesters and bioplastics

FEBS Open Bio, EarlyView.
Plastic pollution remains a critical environmental challenge, and current mechanical and chemical recycling methods are insufficient to achieve a fully circular economy. This review highlights recent breakthroughs in the enzymatic depolymerization of both oil‐derived polyesters and bioplastics, including high‐throughput protein engineering, de novo ...
Elena Rosini, Nicolò Antonelli, Gianluca Molla   +2 more
wiley   +1 more source

Hot Melt Extruded Posaconazole-Based Amorphous Solid Dispersions—The Effect of Different Types of Polymers

Pharmaceutics, 2023
Four model polymers, representing (i) amorphous homopolymers (Kollidon K30, K30), (ii) amorphous heteropolymers (Kollidon VA64, KVA), (iii) semi-crystalline homopolymers (Parteck MXP, PXP), and (iv) semi-crystalline heteropolymers (Kollicoat IR, KIR ...
Daniel Kramarczyk, Justyna Knapik-Kowalczuk, Mateusz Kurek, Witold Jamróz, Renata Jachowicz, Marian Paluch   +5 more
doaj   +1 more source

Amorphous metallic films in silicon metallization systems [PDF]

, 1984
The general objective was to determine the potential of amorphous metallic thin films as a means of improving the stability of metallic contacts to a silicon substrate. The specific objective pursued was to determine the role of nitrogen in the formation
Kattelus, H., Nicolet, M. A., So, F.
core   +1 more source

Evolution of the structure of amorphous ice - from low-density amorphous (LDA) through high-density amorphous (HDA) to very high-density amorphous (VHDA) ice

, 2005
We report results of molecular dynamics simulations of amorphous ice for pressures up to 22.5 kbar. The high-density amorphous ice (HDA) as prepared by pressure-induced amorphization of Ih ice at T=80 K is annealed to T=170 K at various pressures to ...
D. Donadio, Lindahl E., M. Parrinello, R. Martoňák   +3 more
core   +1 more source

Enhanced stability and local structure in biologically relevant amorphous materials containing pyrophosphate [PDF]

, 2011
There is increasing evidence that amorphous inorganic materials play a key role in biomineralisation in many organisms, however the inherent instability of synthetic analogues in the absence of the complex in vivo matrix limits their study and clinical ...
Burnell, Victoria, Grover, Liam M., Hriljac, Joseph A., Laurencin, Danielle, Slater, Colin, Smith, Mark E., Wright, Adrian J.   +6 more
core   +2 more sources

Homologous expression and purification of human HAX‐1 for structural studies

FEBS Open Bio, EarlyView.
This research protocol provides detailed instructions for cloning, expressing, and purifying large quantities of the intrinsically disordered human HAX‐1 protein, N‐terminally fused to a cleavable superfolder GFP, from mammalian cells. HAX‐1 is predicted to undergo posttranslational modifications and to interact with membranes, various cellular ...
Mariana Grieben
wiley   +1 more source

Enzymatic degradation of biopolymers in amorphous and molten states: mechanisms and applications

FEBS Open Bio, EarlyView.
This review explains how polymer morphology and thermal state shape enzymatic degradation pathways, comparing amorphous and molten biopolymer structures. By integrating structure–reactivity principles with insights from thermodynamics and enzyme engineering, it highlights mechanisms that enable efficient polymer breakdown.
Anđela Pustak, Aleksandra Maršavelski
wiley   +1 more source

Directly Compressed Tablets of Free Acid Ibuprofen with Nanocellulose Featuring Enhanced Dissolution: A Side-by-Side Comparison with Commercial Oral Dosage Forms

Pharmaceutics, 2020
We have previously reported that heated powder mixtures of ibuprofen (IBU) and high surface area nanocellulose exhibit an enhanced dissolution and solubility of the drug due to IBU amorphization.
Athanasios Mantas, Marie-Amélie Petit, Albert Mihranyan   +2 more
doaj   +1 more source

Evidence for hydrogen two-level systems in atomic layer deposition oxides

, 2013
Two-level system (TLS) defects in dielectrics are known to limit the performance of electronic devices. We study TLS using millikelvin microwave loss measurements of three atomic layer deposited (ALD) oxide films--crystalline BeO ($\rm{c-BeO ...
Banerjee, S. K., Gladchenko, S., Gordon, R. G., Holder, A. M., Khalil, M. S., Kozen, A. C., Liu, Y. Q., Lobb, C. J., Musgrave, C. B., Osborn, K. D., Rubloff, G., Stoutimore, M. J. A., Yum, J. H.   +12 more
core   +1 more source