Recent article from Prof. Yan group accepted in Green Chemistry

In this article, Dr. Heyu Chen, Dr. Prashant Chauhan, and Prof. Ning Yan reported a novel strategy to effectively utilize the bark waste stream as a promising starting material to synthesize environmental-friendly polyurethanes without using hazardous isocyanate/phosgene. Full details can be found here as the Accepted Manuscript.

Barking” up the right tree: biorefinery from waste stream to cyclic carbonate with immobilization of CO2 for non-isocyanate polyurethanes, Green Chemistry, 2020, DOI: 10.1039/D0GC02285C.

Recent Papers

A new paper from the Yan lab has been published in ACS Sustainable Chemistry + Engineering titled From Wastes to Functions: A New Soybean Meal and Bark-Based Adhesive written by Jing Luo, Ying Zhou, Qiang Gao, Jianzhang Li, and Ning Yan

For the first 12 months of publication, 50 free e-prints are available for interested colleagues.

Click here to see the article and get your free e-print.

Working during COVID-19

Even though labs have been closed for a few months, Dr. Ning Yan’s lab have been working hard from home, writing papers, reading articles and preparing to return to the lab to continue experiments!

Recent Publication is Now Featured on “Advances in Engineering” as a Key Scientific Article

Advances in Engineering—which recognizes important findings in engineering fields and reports timely engineering research news—has recently labeled a research work that came from Professor Ning Yan’s group as a “key scientific article contributing to science and engineering research excellence.”

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This work was done by University of Toronto researchers: Heyu Chen (PhD candidate), Dr. Sandeep Nair, Dr. Prashant Chauhan and led by distinguished professor, Prof. Ning Yan; they investigated the effect of lignin-containing nanocellulose (LCNF) on the reinforcing performance of pMDI wood adhesives. As concluded by Advances in Engineering: “Sustainable LCNF from renewable biomass will advance the development of high-performance pMDI adhesives for wider practical applications.”

For further information, this work is published in Chemical Engineering Journal.

Chen, H., Nair, S., Chauhan, P., & Yan, N. (2019). Lignin containing cellulose nanofibril application in pMDI wood adhesives for drastically improved gap-filling properties with robust bonding line interfaces. Chemical Engineering Journal, 360, 393-401.

Recent article from Dr. Tanguy accepted in ACS Applied Materials & Interfaces

In this article, Dr. Tanguy and Prof. Yan, in collaboration with M.S. Whiltshire, Prof. Arjmand and Prof. Zarifi from the University of British Columbia reported the design of novel sensors for the contactless detection of ammonia gas at concentration as low as 1 ppm.

Abstract: Ammonia is a key-compound in a variety of industrial sectors, including automotive, chemical and food. Its hazardous effects on the environment and human health require the implementation of proper safety guidelines and monitoring techniques. An attractive approach is to add sensing functionality to low-cost wireless communication devices to allow for the monitoring/mapping of the chemical environment across a large area. This study outlines a highly sensitive contactless ammonia gas sensor with the potential for the continuous and wireless mapping of ammonia emissions by integrating an antenna on the device. The devices were fabricated by casting a novel advanced sensing nanocomposite, polyaniline (PANI) and phosphate functionalized reduced graphene oxide (P-rGO) on split-ring resonators (SRRs). P-rGO incorporation in PANI produced a positive sensing synergistic effect to multiply the sensing response severalfold to ammonia and dimethylamine gases. Furthermore, we identified that the modification of the semiconductive behavior of the nanosheets, achieved via phosphate functionalization, is the key factor to the positive sensing synergy observed in the nanocomposites due to the formation of localized heterojunctions. The prepared SRRs exhibited remarkably low detection limit, ~1 ppm, to ammonia gas, as well as good stability and selectivity, which paves the path for a novel generation of wireless, chipless, potentially fully printable and passive sensor platforms.