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2018-11-24

Manuel, Ajay P., Kirkey, Aaron, Mahdi, Najia, Shankar, Karthik

The nanoscale confinement and coupling of electromagnetic radiation into plexcitonic modes has drawn immense interest because of the innovative possibilities for their application in light harvesting and light emitting devices (LEDs). Plexcitons arise from the coupling between two types of...

2012-01-01

Parasuraman, Deepika, Leung, Edmund, Serpe, Michael J.

Poly (N-isopropylacrylamide)-co-acrylic acid (pNIPAm-co-AAc) microgel based assemblies (aggregates) were synthesized from microgels of various diameters via polymerization of the crosslinker N,N′-methylenebisacrylamide (BIS) in the presence of microgels in solution. We investigated the ability of...

2015-01-01

Huang, Hui, Serpe, Michael J.

A device composed of a poly (N‐isopropylacrylamide)‐based microgel layer sandwiched between two thin gold layers was used as a platform for determining the amount of ethanol in gasoline (octane number of 87). This device, also known as an etalon, has unique optical properties, which depend on the...

2018-01-01

Jiang, Yaxin, Colazo, Marcos G., Serpe, Michael J.

A novel estradiol-17β (E2) biosensor was constructed from poly(N-isopropylacrylamide) (pNIPAm) microgel-based etalons by modification of their outermost Au layer with an E2 binding 75-mer DNA aptamer. When E2 is not present in the solution, the aptamer forms a loose/linear structure that allows...

2015-01-01

Islam, Molla R., Xie, Shuyi, Huang, Danqing, Smyth, Keady, Serpe, Michael J.

Optical sensors for environmental humidity have been constructed from poly (N-isopropylacrylamide)-co-acrylic acid (pNIPAm-co-AAc) microgels. The devices were constructed by first depositing a monolithic layer of pNIPAm-co-AAc microgels on a Au-coated glass substrate followed by the addition of...

2016-01-01

Jiang, Yaxin, Colazo, Marcos G., Serpe, Michael J.

Progesterone (P4) is a vital steroid hormone involved in the reproduction cycle and necessary for maintenance of pregnancy in humans and animals. Monitoring P4 concentrations is required in various fields, such as dairy industry, environmental protection, and clinical laboratories. The current...

2022-01-01

S. Mahajan & T. Tang

2014-01-01

Islam, Molla R., Serpe, Michael J.

Poly (N-isopropylacrylamide-co-N-(3-aminopropyl) methacrylamide hydrochloride) microgel-based optical devices (etalons) have been shown to change their optical properties in the presence of single-stranded DNA. We hypothesize that this is due to the negatively charged DNA penetrating through the...

2017-01-01

Carvalho, Wildemar S. P., Wei, Menglian, Ikpo, Nduka, Gao, Yongfeng, Serpe, Michael J.

Reports in the literature on the development of new chemical sensing technologies have been growing steadily in number for years. For example, a Web of Science topic search using the term “Chemical Sensing” revealed that over 8 000 papers were published in 2015–2017, with over 40 000 citations to...

2020-01-01

Lia M. Daniels, Bryce S. Dueck, Lauren D. Goegan

Teachers assume personal responsibility in four domains: student motivation, student achievement, relationships with students, and the quality of their own teaching. In all existing research, pre-service and practicing teachers score lowest in the motivation domain. This may be because some...