Johns Hopkins University

Kalpana Besar

Howard Edan Katz

Allen Dale Everett

John Dayton Tovar

Allix Sanders

Herdeline Ann M Ardona

Weiguo Huang

An ethylene-sensitive sensor is described that includes a power source; an ethylene-sensitive semiconductor component electrically connected to the power source, the semiconducting component comprising a semiconducting organic compound; an input electrode electrically connected to the semiconductor component; and an output electrode electrically connected to the semiconductor component. The semiconductor material is at least partially exposed such that it can be contacted by a vapor. Methods of using the ethylene-sensitive sensor to detect ethylenic compounds are also described.

Ethylenic compound sensor including an organic semiconductor

Nanostructures comprising &#x3a0;-conjugated peptides for energy migration in aqueous environments are disclosed. Conductive material comprising these nanostructures, and supramolecular assemblies comprising covalently-bound electron donor-acceptor chromophores for photoinduced electron transfer also are disclosed.

Energy transfer within pi-conjugated peptide heterostructures in aqueous environments

Disclosed herein are biosensor systems and related methods for detecting analytes in aqueous and biologic environments. A biosensor system for detecting binding of an analyte of interest may include a detector configured to detect a change in an electrical property on a surface thereof. The detector may be a FET. The system also may include a passive layer disposed on a top surface of the detector. Further, the system may include a hydrophobic layer disposed on the passive layer. The system also may include a receptor-attachment material configured for binding to an analyte. A receptor may bind to the analyte, and the receptor may be attached to the receptor-attachment material. The binding of the analyte to the receptor can cause the change of the electrical property at the surface. In response to the change for example, a current may change for indicating the binding of the analyte to the receptor.

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Baltimore, MD, United States of America

Kalpana Besar