The City College of New York

3 articles published in JoVE

An Introduction to Parasitic Wasps of Drosophila and the Antiparasite Immune Response

JoVE 3347 5/07/2012

Chiyedza Small*^1,2, Indira Paddibhatla*^1,2, Roma Rajwani¹, Shubha Govind^1,2

¹Biology Department, The City College of New York, CUNY, ²The Graduate Center, The City University of New York

Parasitoid (parasitic) wasps constitute a major class of natural enemies of many insects including Drosophila melanogaster. We will introduce the techniques to propagate these parasites in Drosophila spp. and demonstrate how to analyze their effects on immune tissues of Drosophila larvae.

Isolation and Biophysical Study of Fruit Cuticles

JoVE 3529 3/30/2012

Subhasish Chatterjee¹, Sayantani Sarkar¹, Julia Oktawiec¹, Zhantong Mao¹, Olivia Niitsoo², Ruth E. Stark¹

¹Department of Chemistry, City College of New York, City University of New York Graduate Center and Institute for Macromolecular Assemblies, ²Department of Chemical Engineering, City College of New York

Aerial plant organs are protected by the cuticle, a supramolecular biopolyester-wax assembly. We present protocols to monitor selective removal of epi- and intracuticular waxes from tomato fruit cuticles on molecular and micro scales by solid-state NMR and atomic force microscopy, respectively, and to assess the cross-linking capacity of engineered cuticular biopolyesters.

Electrode Positioning and Montage in Transcranial Direct Current Stimulation

JoVE 2744 5/23/2011

Alexandre F. DaSilva¹, Magdalena Sarah Volz^2,3, Marom Bikson⁴, Felipe Fregni²

¹Headache & Orofacial Pain Effort (H.O.P.E.), Biologic & Material Sciences, School of Dentistry, University of Michigan, ²Laboratory of Neuromodulation, Department of Physical Medicine & Rehabilitation, Spaulding Rehabilitation Hospital and Massachusetts General Hospital, Harvard Medical School, ³Charité, University Medicine Berlin, ⁴Department of Biomedical Engineering, The City College of New York

Transcranial direct current stimulation (tDCS) is an established technique to modulate cortical excitability^1,2. It has been used as an investigative tool in neuroscience due to its effects on cortical plasticity, easy operation, and safe profile. One area that tDCS has been showing encouraging results is pain alleviation ^3-5.