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Related Concept Videos

Raman Spectroscopy Instrumentation: Overview01:26

Raman Spectroscopy Instrumentation: Overview

1.1K
A conventional Raman spectrophotometer includes a laser source, a sample holding system, a wavelength selector, and a detector.
The monochromatic laser source, typically using visible or near-infrared radiation, generates a highly focused beam of light. This light interacts with the molecules of the sample, scattering some of the light. Liquid and gaseous samples are usually tested in ordinary glass capillaries, while solids can be analyzed as powders packed in capillaries or as potassium...
1.1K
Raman Spectroscopy: Overview01:20

Raman Spectroscopy: Overview

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The underlying principle of Raman spectroscopy is based on the interaction between light and matter, specifically molecules' inelastic scattering of photons. When a monochromatic beam of light, typically from a laser source, interacts with a sample, most scattered light has the same frequency as the incident light. This is known as Rayleigh scattering.
However, a small fraction of the scattered light exhibits a frequency shift due to the exchange of energy between the incident photons and...
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Related Experiment Video

Updated: Jan 15, 2026

A Multimodal Wide-Field Fourier-Transform Raman Microscope
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Published on: December 30, 2025

47

RamanBot: Versatile high throughput Raman system.

Khaled Atia1, Robert Hunter2, Meshach Asare-Werehene3,4,5,6

  • 1Department of Electrical and Computer Engineering, University of Ottawa, Ottawa, Ontario, Canada.

Plos One
|January 13, 2026
PubMed
Summary
This summary is machine-generated.

We developed RamanBot, an automated Raman spectroscopy system using 3D printer technology for efficient multisample screening. This low-cost, automated system provides stable and reliable measurements for various applications.

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Area of Science:

  • Analytical Chemistry
  • Spectroscopy
  • Automation Engineering

Background:

  • Raman spectroscopy is vital for chemical analysis but lacks efficient multisample automation.
  • Automated screening systems are underdeveloped, hindering high-throughput applications.

Purpose of the Study:

  • To develop RamanBot, a low-cost, automated Raman spectroscopy system for efficient multisample screening.
  • To integrate Cartesian motion systems from 3D printers into Raman spectroscopy automation.
  • To demonstrate the system's capability for quantitative analysis and screening.

Main Methods:

  • A novel "Raman head" was designed and integrated with a 3D printer's Cartesian motion system.
  • G-code was used to program sample scanning for automated laser excitation and signal collection.
  • The system's precision and stability were evaluated through quantitative analysis of ethanol and methanol, and screening of packaged eggs.

Main Results:

  • RamanBot successfully performed automated, in-place sample excitation and signal collection.
  • Quantitative analysis of ethanol and methanol yielded reliable measurements.
  • Automated screening of six eggs in commercial packaging was achieved with minimal human intervention.

Conclusions:

  • RamanBot is a stable, reliable, and low-cost automated Raman spectroscopy system.
  • The integration of 3D printer motion systems offers a novel approach to Raman spectroscopy automation.
  • The developed system shows significant potential for high-throughput screening applications.