Self-Organized Materials: From Organic molecules to Genetically Engineered Gold-Binding Proteins

2006 ◽  
Author(s):  
Hadi Zareie ◽  
Mehmet Sarikaya ◽  
Andrew Mcdonagh ◽  
Jeffery Barber ◽  
Michael Cortie ◽  
...  
Keyword(s):  
Binding Proteins ◽  
Organic Molecules ◽  
Genetically Engineered ◽  
Self Organized

CHEMICALLY SELF-ASSEMBLED NANOELECTRONIC COMPUTING NETWORKS

1998 ◽  
Vol 09 (01) ◽  
pp. 1-35 ◽  
Author(s):  
S. BANDYOPADHYAY ◽  
V. P. ROYCHOWDHURY ◽  
D. B. JANES
Keyword(s):  
Self Assembly ◽  
Organic Molecules ◽  
Fault Tolerant ◽  
Molecular Wires ◽  
Logic Circuits ◽  
Boolean Logic ◽  
Computing Machinery ◽  
Self Organized ◽  
Processing Activity ◽  
Image Processors

Recent advances in chemical self-assembly will soon make it possible to synthesize extremely powerful computing machinery from metallic clusters and organic molecules. These self-organized networks can function as Boolean logic circuits, associative memory, image processors, and combinatorial optimizers. Computational or signal processing activity is elicited from simple charge interactions between clusters which are resistively/capacitively linked by conjugated molecular wires or ribbons. The resulting circuits are massively parallel, fault-tolerant, ultrafast, ultradense and dissipate very little power.

scholarly journals Electrocatalytic Efficiency of the Oxidation of Ethylene glycol, Glycerol, and Glucose under Oscillatory Regime

2021 ◽  
Author(s):  
Gabriel Melle ◽  
Thiago Altair ◽  
Rafael Romano ◽  
Hamilton Varela
Keyword(s):  
Ethylene Glycol ◽  
Formic Acid ◽  
Organic Molecules ◽  
Electrical Energy ◽  
Oscillatory Regime ◽  
Experimental Conditions ◽  
Small Organic Molecules ◽  
Self Organized ◽  
Polycrystalline Platinum ◽  
Surface Poisoning

There is an increasingly interest in the use of small organic molecules in the interconversion between chemical and electrical energies. Among the strategies to improve the processes of yielding electrical energy in fuel cells and the production of clear hydrogen in electrochemical reform is the use of kinetic instabilities to improve the conversion and selectivity. Herein we report on the electrocatalytic efficiency of the oxidation of ethylene glycol, glycerol, and glucose, under regular and oscillatory regimes, on polycrystalline platinum, in sulfuric acid aqueous solution, and at 25 oC. Despite the high overpotentials for the electro-oxidation of these molecules, the electrochemical activity along quasi-stationary potentio/gavanostatic experiments evidenced that, in all cases, relatively lower potential values, and thus higher activity, are reached during oscillations. Noticeably higher power densities for the electrooxidation of ethylene glycol and glycerol under oscillatory regime in a hypothetical direct liquid fuel cell. The use of identical experimental conditions of that of our previous study[J. Phys. Chem. C 120 (2016) 22365] allowed at discussing some universal trends for seven small organic molecules. We compile the results in terms of the peak current, the maximum poisoning rate found along the oscillations, and the oscillation frequency. The three parameters were found to decrease in the order: formaldehyde > formic acid > methanol > ethanol > ethylene glycol > glycerol > glucose. In addition, we discussed the increase of the voltammetric current with the self-organized poisoning rate and reinforce the trend that high electrocatalytic activity implies high susceptibility to surface poisoning for this set of species. Finally, the analysis done for all species (formic acid, formaldehyde, methanol, ethylene glycol, ethanol, glycerol, and glucose) adds to the available thermodynamic data and is a benchmark against which the activities under oscillatory regime at 25 oC may be compared or assessed. This point of reference permits to explore further experimental conditions that are relevant for energy-related devices, including the conversion of chemical into electrical energy and the electrochemical reform to produce clean hydrogen in electrolyzers.

scholarly journals Genetically Engineered Chimeric Silk-Silver Binding Proteins

2011 ◽  
Vol 21 (15) ◽  
pp. 2889-2895 ◽  
Author(s):  
Heather A. Currie ◽  
Olivier Deschaume ◽  
Rajesh R. Naik ◽  
Carole C. Perry ◽  
David L. Kaplan
Keyword(s):  
Binding Proteins ◽  
Genetically Engineered

scholarly journals Organic Molecules in the Icy Bodies of Planetary Systems – Accepted Notions and New Ideas

2018 ◽  
Vol 27 (1) ◽  
pp. 341-355 ◽  
Author(s):  
Irakli Simonia ◽  
Dale P. Cruikshank
Keyword(s):  
Organic Molecules ◽  
Emission Lines ◽  
Photoluminescence Spectra ◽  
Spectral Emission ◽  
Small Bodies ◽  
Self Organized ◽  
New Ideas ◽  
Hydrocarbon Molecules ◽  
Complex Organic ◽  
Frozen Hydrocarbon Particles

Abstract Cometary bodies are acknowledged to contain some of the most pristine matter in the Solar System, including ices and minerals. Certain number of previously unidentified spectral emission features detected in comets can be explained as emission by hydrocarbon molecules enclosed in a Shpolskii matrix and forming frozen hydrocarbon particles. UV-induced photoluminescence spectra of several self-organized molecules exhibit emission lines coincident with unidentified cometary lines, and open the possibility of the presence of this complex organic as components of the pristine organic inventory of comets. Complex organic was detected also in three satellites of Saturn. We describe in this paper results of our investigation of complex organic of the small bodies and present new approaches and hypotheses.

scholarly journals Electrocatalytic Efficiency of the Oxidation of Ethylene glycol, Glycerol, and Glucose under Oscillatory Regime

2021 ◽  
Author(s):  
Gabriel Melle ◽  
Thiago Altair ◽  
Rafael Romano ◽  
Hamilton Varela
Keyword(s):  
Ethylene Glycol ◽  
Formic Acid ◽  
Organic Molecules ◽  
Electrical Energy ◽  
Oscillatory Regime ◽  
Experimental Conditions ◽  
Small Organic Molecules ◽  
Self Organized ◽  
Polycrystalline Platinum ◽  
Surface Poisoning

There is an increasingly interest in the use of small organic molecules in the interconversion between chemical and electrical energies. Among the strategies to improve the processes of yielding electrical energy in fuel cells and the production of clear hydrogen in electrochemical reform is the use of kinetic instabilities to improve the conversion and selectivity. Herein we report on the electrocatalytic efficiency of the oxidation of ethylene glycol, glycerol, and glucose, under regular and oscillatory regimes, on polycrystalline platinum, in sulfuric acid aqueous solution, and at 25 oC. Despite the high overpotentials for the electro-oxidation of these molecules, the electrochemical activity along quasi-stationary potentio/gavanostatic experiments evidenced that, in all cases, relatively lower potential values, and thus higher activity, are reached during oscillations. Noticeably higher power densities for the electrooxidation of ethylene glycol and glycerol under oscillatory regime in a hypothetical direct liquid fuel cell. The use of identical experimental conditions of that of our previous study[J. Phys. Chem. C 120 (2016) 22365] allowed at discussing some universal trends for seven small organic molecules. We compile the results in terms of the peak current, the maximum poisoning rate found along the oscillations, and the oscillation frequency. The three parameters were found to decrease in the order: formaldehyde > formic acid > methanol > ethanol > ethylene glycol > glycerol > glucose. In addition, we discussed the increase of the voltammetric current with the self-organized poisoning rate and reinforce the trend that high electrocatalytic activity implies high susceptibility to surface poisoning for this set of species. Finally, the analysis done for all species (formic acid, formaldehyde, methanol, ethylene glycol, ethanol, glycerol, and glucose) adds to the available thermodynamic data and is a benchmark against which the activities under oscillatory regime at 25 oC may be compared or assessed. This point of reference permits to explore further experimental conditions that are relevant for energy-related devices, including the conversion of chemical into electrical energy and the electrochemical reform to produce clean hydrogen in electrolyzers.

Genetically engineered binding proteins as biosensors for fermentation and cell culture

2003 ◽  
Vol 84 (6) ◽  
pp. 723-731 ◽  
Author(s):  
Xudong Ge ◽  
Leah Tolosa ◽  
Jen Simpson ◽  
Govind Rao
Keyword(s):  
Cell Culture ◽  
Binding Proteins ◽  
Genetically Engineered

Bioinspired Hierarchical Crystals

MRS Bulletin ◽  
2010 ◽  
Vol 35 (2) ◽  
pp. 138-144 ◽  
Author(s):  
Hiroaki Imai ◽  
Yuya Oaki
Keyword(s):  
Aqueous Solution ◽  
Organic Molecules ◽  
Self Organized ◽  
Inorganic Crystals ◽  
The Matrix ◽  
Soluble Species

AbstractIn the sophisticated architectures of various biominerals, a multilevel hierarchy of lengths from nanometers to millimeters is commonly observed. In this article, superstructures composed of inorganic crystals associated with organic molecules from carbonate-based biominerals were identified and categorized as mesocrystals, which are composed of crystallographically oriented crystals. For the production of hierarchically structured mesocrystals, two strategies using self-organized growth with organic agents in aqueous solution systems were proposed. Arranged structures of micrometric and nanometric units were induced with an insoluble gel matrix and soluble adsorbable organic molecules, respectively. Consequently, bioinspired hierarchical crystals were successfully achieved by combining the matrix and soluble species.

DNA Modulates the Interaction of Genetically Engineered DNA-Binding Proteins and Gold Nanoparticles: Diagnosis of High-Risk HPV Infection

2017 ◽  
Vol 9 (51) ◽  
pp. 44307-44315 ◽  
Author(s):  
Ju-Yi Mao ◽  
Han-Wei Li ◽  
Shih-Chun Wei ◽  
Scott G. Harroun ◽  
Ming-Ying Lee ◽  
...  
Keyword(s):  
Gold Nanoparticles ◽  
High Risk ◽  
Dna Binding ◽  
Binding Proteins ◽  
Hpv Infection ◽  
Dna Binding Proteins ◽  
Genetically Engineered ◽  
High Risk Hpv
Sign in / Sign up

Export Citation Format

Share Document