We describe a planar MEMS silicon structure to record ion channel currents in biological cells. The conventional method of performing an electrophysiological experiment, 'patch-clamping', employs a glass micropipette. The micropipette tip is a source of thermal noise because of its inherent, tapered, conical structure, giving rise to a large pipette resistance. This pipette resistance, when coupled with the biological cell capacitance, limits the available bandwidth of single ion channel recordi...

Taxonomy  Microbiology  Biochemistry  Biodiversity  Developmental Biology  Bioengineering  Bioinformatics  Environmental Sciences  Agricultural Science  Computational Biology  Genetics  Cell Biology  Food Science & Technology  Parasitology  Synthetic Biology 

Doi:10.1016/j.sse.2004.05.072

Computer simulations of realistic ion channel structures have always been challenging and a subject of rigorous study. Simulations based on continuum electrostatics have proven to be computationally cheap and reasonably accurate in predicting a channel's behavior. In this paper we discuss the use of a device simulator, SILVACO, to build a solid-state model for KcsA channel and study its steady-state response. SILVACO is a well-established program, typically used by electrical engineers to simula...

Biological Chemistry  Photochemistry  Taxonomy  Medicinal Chemistry  Ecosystem Science  Developmental Biology  Computational Robotics  Complex network models  Artificial Intelligence  Genetics  Theoretical Chemistry  Analytical Chemistry  Neuroscience  Biological Materials  Nanometer Materials  Green Chemistry  Mathematical Biology  Molecular Biology  Microbiology  Biochemistry  Biodiversity  Bioengineering  Bioinformatics  Biophysics  Biotechnology  Functional Materials  Computational Biology  Synthetic Biology 

Doi:10.1016/j.cmpb.2006.08.007

Infections from parasitic nematodes (or roundworms) contribute to a significant disease burden and productivity losses for humans and livestock. The limited number of anthelmintics (or antinematode drugs) available today to treat these infections are rapidly losing their efficacy as multidrug resistance in parasites becomes a global health challenge. We propose an engineering approach to discover an anthelmintic drug combination that is more potent at killing wild-type Caenorhabditis elegans wor...

Neuroscience  Marine Biology  Toxicology  Taxonomy  Microbiology  Ecosystem Science  Biodiversity  Developmental Biology  Bioengineering  Environmental Sciences  Animal Behavior  Agricultural Science  Biotechnology  Computational Biology  Food Science & Technology  Parasitology  Plant Science  Synthetic Biology 

Doi:10.1126/sciadv.aao1254

All life forms use a seamless integration of physical and chemical sensing mechanisms to enhance their performance and survival skills. To mimic the integrative sensing abilities found in nature, there is a significant interest in developing wearable devices that can smartly track the physiological and biochemical signals of the human body. Progress in wearable physical sensors has been remarkable giving rise to a number of consumer electronics products meant to measure parameters related to act...

Electric Engineering  Green Chemistry  Electrochemistry  Biological Chemistry  Mathematical Biology  Biochemistry  Bioengineering  Bioinformatics  Fundamentals of Material Science  Biophysics  Environmental Sciences  Functional Materials  Chemical Engineering & Technology  Genomics  Computational Biology  Plant Science  Synthetic Biology  Materials Engineering  Analytical Chemistry 

Doi:10.1016/j.sna.2019.07.020

The complex biomechanics and morphology of the femur proximal epiphysis are presented. This specific region in human femur is characterized by a high flexibility compared to that of other primates, since evolved lighter and longer due to the human verticalposition and more balanced loading. The nature and fine morphology of the femur head and its structural behavior have been investigated. Isotropic and orthotropic trabecular structures, which are not present in other primates, have been associa...

Biological Materials  Public Health  Biological Chemistry  Anatomy & Physiology  Dentistry  Global Health  Biochemistry  Bioengineering  Biophysics  Biotechnology  Biological Engineering  Computational Biology  Cell Biology  Orthopedics  Synthetic Biology  Internal Medicine  Surgery & Surgical Specialties 

Doi:10.3844/ajeassp.2016.1213.1221

The presence of three nitrogen hetero-atoms in five-membered ring systems defines an interesting class of compounds, the triazole. This may be of two types, the 1,2,3-triazoles and the 1,2,4-triazoles. Out of the two triazoles, 1,2,4-triazole have drawn great attention due to its wide variety of activities, low toxicities and good pharmacokinetic and pharmacodynamic profiles. Chemistry of triazoles and their fused heterocyclic derivatives has received considerable attention owing to their effect...

Biological Materials  Biological Chemistry  Photochemistry  Biochemistry  Synthetic Biology