Hollow silica tubes with mesoporous wall structure were synthesized through the sol-gel reactions of tetraethoxysilane and n-octadecyltrimethoxysilane (TEOS/C18-TMS) on the surface of ammonium dl-tartrate crystals. Novel hollow carbon tubes with mesoporous walls and rectangular-shaped channels were fabricated using the silica tubes as templates.

Submit Manuscript | http://medcraveonline.com Abbreviations: ILs: Ionic Liquids; CMNPs: Citrate-Coated Magnetite Nanoparticles; TEOS: Tetraethoxyorthosilicate; CPTMS: 3-Cloropropyltrimethoxysilane; IM: Imidazole; XRD: X-Ray Diffraction; FT-IR: Fourier-Transform Infrared Spectroscopy; TGA: Thermal Gravimetric Analysis; VSM: Vibrating-Sample Magnetometer; SEM: Scanning Electron Microscope; TLC: T...

Arvosteltu teos: Karppinen-Kummunmäki, Henna 2022. Tyttöjen vuosisadat: Lasten ja nuorten historiaa keskiajalta 1800-luvulle. Helsinki: Avain. 250 s.

The use of organic–inorganic hybrid compounds containing tetraethoxysilane (TEOS) and hydroxyl-terminated polydimethylsiloxane (PDMS-OH) is one of the most promising approaches for using alkoxysilane-based formulations to improve the effectiveness of the consolidation of traditional silicate artifacts, such as ancient stone. Based on analysis of existing damaged potteries influenced by the crys...

Introduction A major challenge faced by ceramic chemists today is the production of fully polymerized silica by low temperature (< 50°C) solution routes. Current methods involve high temperature, extreme pH, or both. Biological systems, however, have the ability to produce silica under much more benign conditions. These include near neutral pH and temperatures at or below room temperature. Our ...

Arvioitu teos: Urpu Strellman &amp; Kimmo Svinhufvud: Kupliva kirjoittaminen. Iloa ja tehoa työelämän teksteihin. Helsinki: Art House 2020. 304 s. isbn 978-951-884-756-7.

Abstract Hydrogel is a 3D framework of hydrophilic polymeric material that quickly absorbs and retains huge amount water (or other fluid) offers versatile functionality. A series unique carboxymethyl cellulose/Xanthan gum/polyvinyl alcohol (CXP) blended hydrogels, containing both the natural synthetic polymers, were prepared by following blending casting approach. The polymers incorporated thro...

Arvioitu teos:&#x0D; Roosa Rentola: Kielestä kiinni. Kuinka kielentutkimusta käytetään rikosten selvittämisessä? Sastamala: Warelia 2019. 137 s. isbn 978-952-5940-57-2.