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Sustainable polyesters via direct functionalization of lignocellulosic sugars

François Maréchal, Harm-Anton Klok, Véronique Michaud, Jeremy Luterbacher, Yves Leterrier, Maxime Alexandre Clément Hedou, Adrien Julien Demongeot, Graham Reid Dick, Christèle Rayroud, Thibault Rambert

The development of sustainable plastics from abundant renewable feedstocks has been limited by the complexity and efficiency of their production, as well as their lack of competitive material properties. Here we demonstrate the direct transformation of the ...

2022

Recycling of Load-Bearing 3D Printable Double Network Granular Hydrogels

Esther Amstad, Matteo Hirsch, Alvaro Lino Boris Charlet, Sanjay Phileas Schreiber

Sustainable materials, such as recyclable polymers, become increasingly important as they are often environmentally friendlier than their one-time-use counterparts. In parallel, the trend toward more customized products demands for fast prototyping methods ...

WILEY-V C H VERLAG GMBH2022

Multi-recycling of polypropylene fibre reinforced concrete: Influence of recycled aggregate properties on new concrete

Hisham Tarek Mohamed Hafez

Herein, an investigation of multi-generational recyclability of polypropylene fibre reinforced concrete (PPFRC) was performed. The parent concretes were produced with 0 and 6 kg/m(3) of polypropylene fibres. After recycling, the obtained coarse recycled co ...

ELSEVIER SCI LTD2022

Wafer-Level Vacuum Sealing for Packaging of Silicon Photonic MEMS

Niels Quack, Hamed Sattari, Alain Yuji Takabayashi, Göran Stemme

Silicon (Si) photonic micro-electro-mechanical systems (MEMS), with its low-power phase shifters and tunable couplers, is emerging as a promising technology for large-scale reconfigurable photonics with potential applications for example in photonic accele ...

SPIE-INT SOC OPTICAL ENGINEERING2021

Wastewater management towards a sustainable future. Dairy production: a study case

François Maréchal, Ivan Daniel Kantor, Rafael Amorim Leandro De Castro Amoedo, Anna Sophia Wallerand, Hür Ebuzer Bütün

The increasing demand for heat, electricity, fuels and chemicals is pushing natural resources towards a non-reversible situation. Current solutions have to be adapted, and alternative (desirably sustainable) sources have to be found. With growth assured du ...

Institute of Thermal Technology, Silesian University of Technology2019

Transition of a South African sugar mill towards a biorefinery. A feasibility assessment

Edgard Gnansounou, Jegannathan Kenthorai Raman, Elia Mercedes Ruiz Pachon, Pavel Vaskan

The survival of the sugar industry in South Africa is under threat due to an unstable and low sugar price, high production cost and old infrastructure. At present, coal and sugarcane bagasse are used as fuels in an inefficient boiler to generate the heat a ...

ELSEVIER SCI LTD2018

On the Assessment of the CO2 Mitigation Potential of Woody Biomass

François Maréchal, François Richard Vuille, Emanuela Peduzzi, Victor Codina Gironès

Woody biomass, a renewable energy resource, accumulates solar energy in form of carbon hydrates produced from atmospheric CO2 and H2O. It is, therefore, a means of CO2 mitigation for society as long as the biogenic carbon released to the atmosphere when de ...

2018

Exploring biochemical pathways for mono-ethylene glycol (MEG) synthesis from synthesis gas

Vassily Hatzimanikatis, Meriç Ataman, Noushin Hadadi

Mono-ethylene glycol (MEG) is an important petrochemical with widespread use in numerous consumer products. The current industrial MEG-production process relies on non-renewable fossil fuel-based feedstocks, such as petroleum, natural gas, and naphtha; hen ...

Academic Press Inc Elsevier Science2017

Harvesting of Chlorella sorokiniana by co-culture with the filamentous fungus Isaria fumosorosea: A potential sustainable feedstock for hydrothermal gasification

Christof Holliger, Jean-Paul Schwitzguebel, Eduardo Pereira Gomes, Stephen Mackay

Despite recent advances in down-stream processing, production of microalgae remains substantially limited because of economical reasons. Harvesting and dewatering are the most energy-intensive processing steps in their production and contribute 20–30% of t ...

Elsevier2015

Reliability Aspects of Microelectromechanical Systems for Space Applications : Mechanical Properties of Structural Materials and Analysis of Packaging Strains

Tobias Bandi

Microelectromechanical systems (MEMS) are an essential ingredient in many technological innovations and a source of game-changing inventions in the automotive industry, space exploration, consumer electronics and medical applications due to its capability ...

EPFL2014