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   https://doi.org/10.1021/acscatal.1c03196  

   Hona, R.K. ; Karki, S.B. ; Cao, T. ; Mishra, R. ; Sterbinsky, G.E. ; Ramezanipour, F. ( December 2021 , ACS catalysis)
2. Carrier scattering mechanisms limiting mobility in hydrogen-doped indium oxide

   https://doi.org/10.1063/1.5033561  

   Husein, Sebastian ; Stuckelberger, Michael ; West, Bradley ; Ding, Laura ; Dauzou, Fabien ; Morales-Masis, Monica ; Duchamp, Martial ; Holman, Zachary ; Bertoni, Mariana I. ( June 2018 , Journal of Applied Physics)
3. Graphene oxide catalyzed ketone α-alkylation with alkenes: enhancement of graphene oxide activity by hydrogen bonding

   https://doi.org/10.1039/c9cc02578b  

   Meng, Guangrong ; Patel, Mehulkumar ; Luo, Feixiang ; Li, Qingdong ; Flach, Carol ; Mendelsohn, Richard ; Garfunkel, Eric ; He, Huixin ; Szostak, Michal ( May 2019 , Chemical Communications)

   Direct α-alkylation of carbonyl compounds represents a fundamental bond forming transformation in organic synthesis. We report the first ketone-alkylation using olefins and alcohols as simple alkylating agents catalyzed by graphene oxide. Extensive studies of the graphene surface suggest a pathway involving dual activation of both coupling partners. Notably, we show that polar functional groups have a stabilizing effect on the GO surface, which results in a net enhancement of the catalytic activity. The method represents the first alkylation of carbonyl compounds using graphenes, which opens the door for the development of an array of protocols for ketone functionalization employing common carbonyl building blocks and readily available graphenes. 

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4. Hydrogels for Gasotransmitter Delivery: Nitric Oxide, Carbon Monoxide, and Hydrogen Sulfide

   https://doi.org/10.1002/mabi.202300138  

   Sarkar, Santu ; Kumar, Rajnish ; Matson, John B. ( July 2023 , Macromolecular Bioscience)

   Gasotransmitters, gaseous signaling molecules including nitric oxide (NO), carbon monoxide (CO), and hydrogen sulfide (H₂S), maintain myriad physiological processes. Low levels of gasotransmitters are often associated with specific problems or diseases, so NO, CO, and H₂S hold potential in treating bacterial infections, chronic wounds, myocardial infarction, ischemia, and various other diseases. However, their clinical applications as therapeutic agents are limited due to their gaseous nature, short half‐life, and broad physiological roles. One route toward the greater application of gasotransmitters in medicine is through localized delivery. Hydrogels are attractive biomedical materials for the controlled release of embedded therapeutics as they are typically biocompatible, possess high water content, have tunable mechanical properties, and are injectable in certain cases. Hydrogel‐based gasotransmitter delivery systems began with NO, and hydrogels for CO and H₂S have appeared more recently. In this review, the biological importance of gasotransmitters is highlighted, and the fabrication of hydrogel materials is discussed, distinguishing between methods used to physically encapsulate small molecule gasotransmitter donor compounds or chemically tether them to a hydrogel scaffold. The release behavior and potential therapeutic applications of gasotransmitter‐releasing hydrogels are also detailed. Finally, the authors envision the future of this field and describe challenges moving forward.

    

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5. Iron polypyridyl catalysts assembled on metal oxide semiconductors for photocatalytic hydrogen generation

   https://doi.org/10.1039/c8cc00453f  

   Race, N. A. ; Zhang, W. ; Screen, M. E. ; Barden, B. A. ; McNamara, W. R. ( January 2018 , Chemical Communications)

   A series of Fe( iii ) complexes was recently reported that are active for photocatalytic hydrogen generation when paired with fluorescein and triethylamine. Herein we report an Fe( iii ) complex immobilized on TiO 2 and SrTiO 3 that is significantly more active than the homogeneous system, achieving up to 7800 turnovers in 31 hours. 

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