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Related Concept Videos

Encoding01:19

Encoding

Information enters the brain through encoding, which is the input of information into the memory system. Once sensory information is received from the environment, the brain labels or codes it. The information is then organized with similar information and connected to existing concepts. Encoding occurs through automatic processing and effortful processing.
Automatic processing involves the encoding of details like time, space, frequency, and the meaning of words, usually done without conscious...
Mass Spectrometry: Complex Analysis01:21

Mass Spectrometry: Complex Analysis

Mass spectrometry is an important technique for the identification of pure compounds. However, it has some limitations for the analysis of complex mixtures, often due to excessive fragmentation making the spectrum too complicated to decipher. Mass spectrometry can be combined with suitable separation methods in sequence, forming hyphenated methods, which are useful in the analysis of complex mixtures.
GC–MS is a powerful hyphenated method commonly used in forensics and environmental...
Chemical Synapses01:26

Chemical Synapses

Chemical synapses are specialized sites between two neurons or between a neuron and a non-neuronal cell like a muscle, glandular or sensory cell.
Because chemical synapses depend on the release of neurotransmitter molecules from synaptic vesicles to pass on their signal, there is an approximately one millisecond delay between when the axon potential reaches the presynaptic terminal and when the neurotransmitter leads to opening of postsynaptic ion channels. Additionally, this signaling is...
Chemical Synapses01:26

Chemical Synapses

Chemical synapses are specialized sites between two neurons or between a neuron and a non-neuronal cell like a muscle, glandular or sensory cell.
Because chemical synapses depend on the release of neurotransmitter molecules from synaptic vesicles to pass on their signal, there is an approximately one millisecond delay between when the axon potential reaches the presynaptic terminal and when the neurotransmitter leads to opening of postsynaptic ion channels. Additionally, this signaling is...
Maxam-Gilbert Sequencing01:05

Maxam-Gilbert Sequencing

In the same year as the discovery of the Sanger sequencing method, another group of scientists, Allan Maxam and Walter Gilbert, demonstrated their chemical-cleavage method for DNA sequencing. The Maxam-Gilbert method relies on using different chemicals that can cleave the DNA sequence at specific sites, the separation of resulting DNA fragments of variable size using electrophoresis, and deciphering the DNA sequence from the resulting gel bands.
Challenges of the Maxam-Gilbert Method
The...
Ion-Exchange Chromatography01:09

Ion-Exchange Chromatography

Ion-exchange chromatography, or IEC, is a technique for separating ions based on their affinity for the stationary phase. The stationary phase is a cross-linked polymer resin with covalently attached ionic functional groups. The functional groups can be either positively charged (cation exchangers) or negatively charged (anion exchangers). A cation exchanger consists of a polymeric anion and active cations, while an anion exchanger is a polymeric cation with active anions. The choice of...

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Simultaneous Long-term Recordings at Two Neuronal Processing Stages in Behaving Honeybees
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Encoding and processing of alphanumeric information by chemical mixtures.

Tamar Ratner1, Ofer Reany, Ehud Keinan

  • 1The Schulich Faculty of Chemistry, Technion-Israel Institute of Technology, Technion City, Haifa 32000, Israel.

Chemphyschem : a European Journal of Chemical Physics and Physical Chemistry
|November 26, 2009
PubMed
Summary

A new chemical encoding system uses nuclear magnetic resonance (NMR) to store and manipulate data. This infochemical device can encode text, binary, and decimal numbers, enabling molecular information storage and encryption.

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Area of Science:

  • Analytical Chemistry
  • Physical Chemistry
  • Information Science

Background:

  • Traditional data storage methods face limitations in density and security.
  • Developing novel molecular-scale information encoding systems is crucial for future technologies.

Purpose of the Study:

  • To present a novel infochemical device for chemical information readout using (1)H NMR.
  • To demonstrate the system's capability for text, binary, and decimal number encoding and manipulation.

Main Methods:

  • Utilized chemical shift and peak integration of homogeneous mixtures for encoding.
  • Developed spectral representations for symbol, binary, and decimal encoding.
  • Performed algebraic manipulations (addition, subtraction) on encoded binary numbers.

Main Results:

  • Successfully encoded text using spectral representation of symbols.
  • Demonstrated encoding of 21-digit binary numbers and their algebraic manipulation.
  • Achieved encoding of 21-digit decimal numbers based on relative compound concentrations.

Conclusions:

  • The presented NMR-based system offers a versatile platform for molecular information storage and encryption.
  • The device enables both data representation and mathematical operations at the molecular level.
  • This approach opens new avenues for secure and high-density data storage.