MIT SRP

Zhewen Guo, Haosheng Feng, Timothy Swager

DOI: https://pubs.acs.org/doi/10.1021/acssensors.4c02462

Abstract: Herein, we present the development and evaluation of a molecularly imprinted polymer (MIP) sensor for the sensitive and selective detection of N-nitrosodimethylamine (NDMA) in aqueous environments. MIP coatings over electrochemically active electrodes enable NDMA detection with a notably low detection limit of 1.16 ppb. Our findings demonstrate that the ...

Michelle Chen, Elliot I. Corless, Bevin P. Engelward, Timothy M. Swager

Link to Paper: https://pubs.acs.org/doi/full/10.1021/acsomega.4c03959

Agglutination of liquid Janus emulsions creates optical signals that can be detected and quantified. This study reports the detection and quantitation of Interleukin-6 (IL-6) using emulsions functionalized at the water-organic interface with engineered hyperthermophilic affinity proteins (rcSso7d) derived from ...

Jessica C. Beard, Chi-Hsien Wang, Arun Sridharan, Robert G. Croy, John M. Essigmann, Timothy M. Swager

Link to Paper: https://doi.org/10.1021/acssensors.4c00927

N-Nitrosamines are contaminants found throughout the environment, including in drinking water, and many nitrosamines are likely potent carcinogens. Correspondingly, there is need for rapid and cost-effective in-field detection methods that can provide timely information about their contamination ...

Jing Ge, Le P. Ngo, Simran Kaushal, Ian J. Tay, Elina Thadhani, Jennifer E. Kay, Patrizia Mazzucato, Danielle N. Chow, Jessica L. Fessler, David M. Weingeist, Robert W. Sobol, Leona D. Samson, Scott R. Floyd, Bevin P. Engelward,*

Link: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8439179/

DNA damage can be cytotoxic and mutagenic, and it is directly linked to aging, cancer, and other diseases. To counteract the deleterious effects of DNA damage, cells have ...

Norah Owiti, Joshua Corrigan, Lee Pribyl, Jennifer Kay, Bevin Engelward

https://doi.org/10.3390/ijms231911776

The comet assay is a versatile assay for detecting DNA damage in eukaryotic cells. The assay can measure the levels of various types of damage, including DNA strand breaks, abasic sites and alkali-sensitive sites. Furthermore, the assay can also be modified to include purified DNA glycosylases so that alkylated and oxidized bases can be detected. The ...

Irene Hu and Harold Hemond

https://doi.org/10.3390/

Aquatic eddy covariance (AEC) is an in situ technique for measuring fluxes in marine and freshwater systems based on the covariance of velocity and concentration measurements. Here, development of a fast multiple-channel sensor (FACT) enables the use of AEC for measurement of benthic fluxes of fluorescent dissolved organic material, salt, and heat at three distinct sites in Massachusetts, USA, including the ...

Jennifer E. Kay, Joshua J. Corrigan, Amanda L. Armijo, Ilana S. Nazari, Ishwar N. Kohale, Dorothea K. Torous, Svetlana L. Avlasevich, Robert G. Croy, Dushan N. Wadduwage, Sebastian E. Carrasco, Stephen D. Dertinger, Forest M. White, John M. Essigmann, Leona D. Samson, Bevin P. Engelward

doi: https://doi.org/10.1101/2021.01.12.426356

Link to all of the Imaging done in this study: https://omero.mit.edu/webclient/?show=project-153 ...

Haosheng Feng, Shao-Xiong Lennon Luo, Robert G Croy, John M. Essigmann, Timothy M. Swager

https://doi.org/10.1039/D2DT03848J

Cu(I) from tetrakis(acetonitrile)copper(I) hexafluorophosphate ([Cu(MeCN)4]PF6) was complexed with five structurally related phosphines containing N-heterocycles. The interactions between the resulting complexes and some N-nitrosamines were studied using X-ray crystallography as well as emission spectroscopy. Upon complexation, three ...

Amanda L. Armijo, Pennapa Thongaram, Bogdan I. Fedeles, Judy Yau, Jennifer E Kay, Joshua J. Corrigan, Marisa Chancharoen, Supawadee Chawanthayatham, Leona D. Samson, Sebastian E. Carrasco, Bevin P. Engelward, James G. Fox, Robert G. Croy & John M. Essigmann

DNA-methylating environmental carcinogens such as N-nitrosodimethylamine (NDMA) and certain alkylators used in chemotherapy form O6-methylguanine (m6G) as a functionally critical intermediate. NDMA ...

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General SOP of the overall study - contains info from both the manuscript and supplementary information packet.