Bioactive glasses (BG) are used to regenerate bone, as they degrade and release therapeutic ions. Glass ionomer cements (GIC) are used in dentistry, can be delivered by injection, and set in situ by a reaction between an acid-degradable glass and a polymeric acid. Our aim was to combine the advantages of BG and GIC, and we investigated the use of alkali-free BG (SiO2–CaO–CaF2–MgO) with 0–50% of...

Composites in 25 kg batches were compounded of cellulose nanocrystals (CNC) and thermomechanical pulp (TMP) shaped into caps at industrial facilities on a pilot-plant scale. Some the material was also injection molded plaques to compare effect laboratory-scale pilot-scale compounding poly(ethylene-co-acrylic acid) (EAA7) poly(caprolactone) composites reinforced with 10 wt% CNC TMP. The material...

Well-shaped spherical magnetic microspheres were prepared using a synthetic polymer of poly-(acrylonitrile-co-acrylamide). Their size varied from 100 up to 1000 μm proportionally to the flow rate of the polymer solution and their density was from 1030 to 1045 kg.m, depending on the magnetite content. Trypsin (EC 3.4.21.4) was chosen as model enzyme and immobilized on the acyl azide derivatives ...

Synergistic relations between organic molecules and mineral precursors regulate biogenic mineralization. Given the remarkable material properties of the egg shell as a biogenic ceramic, it serves as an important model to elucidate biomineral growth. With established roles of complex anionic biopolymers and a heterogeneous organic scaffold in egg shell mineralization, the present study explores ...

Supercapacitors are an attractive technology for energy storage applications as they allow fast charging of devices. The fabrication flexible supercapacitors by additive manufacturing is a promising approach to produce components where material flexibility and complex geometries desirable. In this work, digital light projection (DLP) used fabricate polymer electrolytes based on crosslinked poly...

Synthesis of molecularly imprinted polymers vanillic acid and extraction from spiked blood serumShowkat Ahmad Bhawani, Salma Bakhtiar, Rachel Roland, Syed Rizwan Shafqat, Mohamad Nasir Ibrahim

Acrylic acid is an important commodity chemical and is widely used as a base material for the industrial production of paints, plastics, superabsorbent polymers, rubber, and so on. Currently acrylic acid is produced by partial oxidation of propene, which is refined from petroleum. Catalytic hydrocarboxylation of acetylene with CO is another way to synthesize acrylic acid with high atom-economy....

Dissimilar material bonding is a challenge constantly being considered within engineering. This paper presents method for tailoring metal surfaces by covalently grafting polymers that are directly complimentary to their respective dissimilar material. Acrylic acid was grafted onto the surface of aluminium which subsequently bonded poly-lactic (PLA), nylon-6, and nylon-6/carbon fiber hybrid via ...