Principle and applications of a new MOEMS spectrometer

Otto, Thomas; Saupe, Ray; Weiss, Alexander; Stock, Volker; Bruch, R.; Geßner, Thomas

doi:10.1117/12.648909

Cited by 7 publications

(2 citation statements)

References 6 publications

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“…[30][31][32] Therefore, only a short discussion is presented in this report. Polychromatic NIR radiation generated by a quartz tungsten halogen lamp passes through a quartz cuvette (VWR International LLC, West Chester, PA) containing the liquid sample and having a light path between 1-10 mm.…”

Section: Vibrational Spectroscopic Studies Of Synthetic Biopolymers 405mentioning

confidence: 99%

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Vibrational spectroscopic studies of newly developed synthetic biopolymers

2010

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Vibrational spectroscopic techniques such as near‐infrared (NIR), Fourier transform infrared (FTIR), and Raman spectroscopy are valuable diagnostic tools that can be used to elucidate comprehensive structural information of numerous biological samples. In this review article, we have highlighted the advantages of nanotechnology and biophotonics in conjunction with vibrational spectroscopic techniques in order to understand the various aspects of new kind of synthetic biopolymers termed as polyethylene glycol (PEG)ylated lipids. In contrast to conventional phospholipids, these novel lipids spontaneously form liposomes or nanovesicles upon hydration, without the supply of external activation energy. The amphiphiles considered in this study differ in their hydrophobic acyl chain length and contain different units of PEG hydrophilic headgroups. We have further explored the thermotropic phase behaviors and associated changes in the conformational order/disorder of such lipids by using variable‐temperature FTIR and Raman spectroscopy. Phase transition temperature profiles and correlation between various spectral indicators have been identified by either monitoring the shifts in the vibrational peak positions or plotting vibrational peak intensity ratios in the CH stretching region as a function of temperature. To supplement our observations of phase transformations, a thermodynamic approach known as differential scanning calorimetry (DSC) has been applied and revealed a good agreement with the infrared and Raman spectroscopic data. Finally, the investigation of thermal properties of lipids is extremely crucial for numerous purposes, thus the results obtained in this work may find application in a wide variety of studies including the development of PEGylated lipid based drug and substances delivery vehicles. © 2010 Wiley Periodicals, Inc. Biopolymers 93: 403–417, 2010.This article was originally published online as an accepted preprint. The “Published Online” date corresponds to the preprint version. You can request a copy of the preprint by emailing the Biopolymers editorial office at biopolymers@wiley.com

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Section: Vibrational Spectroscopic Studies Of Synthetic Biopolymers 405mentioning

confidence: 99%

“…For a typical 300-lm slit width and a grating with 600 lines/mm, a spectral resolution of 13 nm (FWHM) has been achieved. 31,32 Fourier Transform Infrared Spectroscopy…”

Section: Vibrational Spectroscopic Studies Of Synthetic Biopolymers 405mentioning

confidence: 99%

Vibrational spectroscopic studies of newly developed synthetic biopolymers

2010

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MEMS‐ andMOEMS‐Based Near‐Infrared Spectrometers

Antila

Tuohiniemi

Rissanen

et al. 2000

Encyclopedia of Analytical Chemistry

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The trend in near‐infrared (NIR) spectroscopy is to go toward on‐site, in‐field, on‐the‐go applications with calibration‐free instruments and off‐the‐shelf chemometrics software. Micro‐electro‐mechanical systems (MEMS) and micro‐opto‐electro‐mechanical systems (MOEMS) represent manufacturing techniques and components, capable of enabling highly miniaturized, robust, and low‐cost sensors and actuators. This article presents common MEMS and MOEMS manufacturing techniques and gives an insight into the demands of NIR spectroscopic applications. The main instrument categories are covered by a short theory followed by examples. Most thoroughly handled topics are Fourier transform spectrometers (FTSs), Fabry–Perot interferometers (FPIs), and dispersive spectrometers. Two other categories are also separately presented, namely light modulator systems and tunable MEMS light sources. We give an overview on NIR spectroscopy and its special requirements regarding the realization of MEMS spectrometers.

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MEMS‐ and MOEMS‐Based Visible and Near‐Infrared Spectrometers

Antila¹,

Tuohiniemi²,

Rissanen³

et al. 2021

Encyclopedia of Analytical Chemistry

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The trend in near‐infrared (NIR) spectroscopy is to go toward on‐site, in‐field, on‐the‐go applications with calibration‐free instruments and off‐the‐shelf chemometrics software. Micro‐electro‐mechanical systems (MEMS) and micro‐opto‐electro‐mechanical systems (MOEMS) represent manufacturing techniques and components, capable of enabling highly miniaturized, robust, and low‐cost sensors and actuators. This article presents common MEMS and MOEMS manufacturing techniques and gives an insight into the demands of NIR spectroscopic applications. The main instrument categories are covered by a short theory followed by examples. Most thoroughly handled topics are Fourier‐transform spectrometers (FTSs), Fabry–Perot interferometers (FPIs), and dispersive spectrometers. Two other categories are also separately presented, namely light modulator systems and tunable MEMS light sources. We give an overview on NIR spectroscopy and its special requirements regarding the realization of MEMS spectrometers.

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Principle and applications of a new MOEMS spectrometer

Cited by 7 publications

References 6 publications

Vibrational spectroscopic studies of newly developed synthetic biopolymers

Vibrational spectroscopic studies of newly developed synthetic biopolymers

MEMS‐ andMOEMS‐Based Near‐Infrared Spectrometers

MEMS‐ and MOEMS‐Based Visible and Near‐Infrared Spectrometers

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