publications | hashemilab

3D Carbon Nanofiber Microelectrode Array Fabricated by Plasma-assisted Pyrolysis to Enhance Sensitiv

In this paper, we have fabricated 3D carbon nanofiber microelectrode arrays (MEAs) with highly reproducible and rich chemical surface...

Fast voltammetry of metals at carbon-fiber microelectrodes: towards an online speciation sensor

Speciation controls the chemical behavior of trace metals. Thus, there is great demand for rapid speciation analysis in a variety of...

Modulation of Serotonin Dynamics in the Dorsal Raphe Nucleus via High Frequency Medial Prefontal Cor

The subcallosal cingulate (SCC) region, or its rodent homologue the medial prefrontal cortex (mPFC), and midbrain dorsal raphe (DR) are...

Regrowth of Serotonin Axons in the Adult Mouse Brain Following Injury

It is widely believed that damaged axons in the adult mammalian brain have little capacity to regrow, thereby impeding functional...

Fast voltammetry of metals at carbon-fiber microelectrodes: rapid determination of solution formatio

Metal speciation controls the behavior of aqueous metal ions. Fundamental thermodynamic parameters, such as the formation constant (Kf)...

A Voltammetric and Mathematical Analysis of Histaminergic Modulation of Serotonin in the Mouse Hypot

Histamine and serotonin are neuromodulators which facilitate numerous, diverse neurological functions. Being co-localized in many brain...

A Novel, Ultra-fast Electrochemical Tool to Study Speciation of Trace Metals in Aqueous Solution

Trace metals play important roles in biological and ecological systems. In biology, trace metals act as catalytic or structural cofactors...

Real-time, Selective Detection of Copper(II) using Ionophore-grafted Carbon-fiber Microelectrodes

Rapid, selective detection of metals in complex samples remains an elusive goal that could provide critical analytical information for...

A Density-controlled Scaffolding Strategy for Covalent Functionalization of Carbon-fiber Microelectr

Trace metal detection is of great importance in environmental and biological systems. It is crucial to develop a portable and sensitive...

In Vivo Histamine Voltammetry in the Mouse Premammilary Nucleus

Histamine plays a major role in the mediation of allergic reactions such as peripheral inflammation. This classical monoamine is also a...