Amorphous calcium phosphate powder synthesized from calcium acetate and polyphosphoric acid for bioceramics application
Sign Up to like & getrecommendations! Published in 2017 at "Ceramics International"
DOI: 10.1016/j.ceramint.2016.10.085
Abstract: Abstract Amorphous hydrated calcium phosphate powder was synthesized at room temperature from aqueous solutions of polyphosphoric acid and calcium acetate with addition of ammonia water solution. Synthesized powder remains amorphous after heat in the temperature… read more here.
Keywords: calcium phosphate; polyphosphoric acid; phosphate powder; powder ... See more keywords
Entrapment of proteins and peptides in chitosan-polyphosphoric acid hydrogel beads: A new approach to achieve both high entrapment efficiency and controlled in vitro release.
Sign Up to like & getrecommendations! Published in 2018 at "Food chemistry"
DOI: 10.1016/j.foodchem.2017.07.021
Abstract: Bovine serum albumin (BSA), whey protein isolate (WPI), insulin and a casein hydrolysate were entrapped in chitosan-polyphosphoric acid (PPA) beads. The in vitro release of protein from the beads in simulated gastric fluid (SGF, pH… read more here.
Keywords: vitro release; entrapment; polyphosphoric acid; chitosan polyphosphoric ... See more keywords
Moderating Effects of Paraffin Wax on Interactions between Polyphosphoric Acid and Bitumen Constituents
Sign Up to like & getrecommendations! Published in 2019 at "ACS Sustainable Chemistry & Engineering"
DOI: 10.1021/acssuschemeng.9b05008
Abstract: Despite the merits of using polyphosphoric acid (PPA) in modification of bitumen, its desirable stiffening effect on bitumen is totally composition-dependent. While asphaltenes and resins are correctly introduced as the immediate components affected by PPA,… read more here.
Keywords: ppa; wax; moderating effects; polyphosphoric acid ... See more keywords
Polyphosphoric acid-promoted one-pot synthesis and neuroprotective effects of flavanones against NMDA-induced injury in PC12 cells
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DOI: 10.1039/d2ra03562f
Abstract: We report herein an efficient polyphosphoric acid (PPA) promoted one-pot protocol for the synthesis of flavanone derivatives from 2-hydroxyacetophenones and benzaldehydes. A variety of flavanones were produced in moderate to excellent yields and evaluated for… read more here.
Keywords: polyphosphoric acid; neuroprotective effects; nmda induced; one pot ... See more keywords
Evaluation of rutting resistance of asphalt binders and asphalt mixtures modified with polyphosphoric acid
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DOI: 10.1080/10916466.2016.1248776
Abstract: ABSTRACT In this research, a polyphosphoric acid (PPA) additive was used to modify a performance graded binder (PG 58-22). Experimental program included use of three PPA contents (0.5%, 1%, and 1.5%) by weight of bitumen… read more here.
Keywords: asphalt mixtures; polyphosphoric acid; asphalt binders; rutting resistance ... See more keywords
Evaluating the Effects of Polyphosphoric Acid (PPA) on the Anti-Ultraviolet Aging Properties of SBR-Modified Asphalt
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DOI: 10.3390/ma16072784
Abstract: The ultraviolet (UV) aging of asphalt is an important factor affecting the long-term performance of asphalt pavement, especially in high altitude cold regions. The current studies have reported that styrene butadiene rubber-modified asphalt (SBRMA) has… read more here.
Keywords: acid ppa; modified asphalt; ppa; aging properties ... See more keywords