Terahertz absorption spectra of some saccharides and their metal complexes

Yang, Limin; Sun, Hong‐Bo; Weng, Shifu; Zhao, Kui; Zhang, Liangliang; Zhao, Guozong; Wang, Yugang; Xu, Yizhuang; Lu, Xiangyang; Zhang, Cunlin; Wu, Jinguang; Chen, Jiaer

doi:10.1016/j.saa.2007.03.023

Cited by 32 publications

(18 citation statements)

References 33 publications

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“…Only very recently an interesting study, exploring the far infrared region of some carbohydrate complexes of Ca(II), Cu(II), Mn(II), Pr(III) and Nd(III) has been published [60] and it would be interesting to perform similar studies with the oxovanadium(IV) complexes.…”

Section: General Physicochemical Properties Of Vo 2+ /Carbohydrate Comentioning

confidence: 99%

Oxovanadium(IV) complexes of carbohydrates: A brief overview

Baran¹

2009

Journal of Inorganic Biochemistry

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Section: General Physicochemical Properties Of Vo 2+ /Carbohydrate Comentioning

confidence: 99%

Oxovanadium(IV) complexes of carbohydrates: A brief overview

Baran¹

2009

Journal of Inorganic Biochemistry

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“…The recent research work on THz radiation generation, detection, and the spectroscopic and imaging tools, such as THz time-domain spectroscopy (THz-TDS) [26]- [29] that can be operated in the time and spatial domain to process the data obtained from the transmitted or reflected THz beam, opens up new ventures by applying the particular technology for food or water contamination detection [30]. The core idea is food and liquid have unique physical features and presents a unique spectral imprint when exposed in the THz frequency domain [31]- [44]. The food quality and safety monitoring [38] comprising microbiological contamination detection including toxic metals [44], pesticides [39], veterinary drug residues, organic pollutants, radionuclides and mycotoxins, is a pressing issue for public health and wellbeing.…”

Section: Introductionmentioning

confidence: 99%

“…The core idea is food and liquid have unique physical features and presents a unique spectral imprint when exposed in the THz frequency domain [31]- [44]. The food quality and safety monitoring [38] comprising microbiological contamination detection including toxic metals [44], pesticides [39], veterinary drug residues, organic pollutants, radionuclides and mycotoxins, is a pressing issue for public health and wellbeing. Several studies have focused on different types of food additives, such as flour and talc mixtures [40], melamine in milk powders [41], which indicate that the absorption spectra of the pure and mixed products were by and large distinct.…”

Section: Introductionmentioning

confidence: 99%

State-of-the-art in terahertz sensing for food and water security – A comprehensive review

Ren

Zahid

Fan

et al. 2019

Trends in Food Science & Technology

124

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Past few years have witness a dramatic change in the field of terahertz (THz) technology. The recent advancements in the technology for generation, manipulation and detection exploiting THz radiation have brought revolution in the field. Many researchers around the world have been inspired by the potential of invaluable new applications of THz sensing for food and water contamination detection. The microbial pollution in water and food is one the crucial issues with regard to the sanitary state for drinking water and daily consumption of food. To address this risk, the detection of microbial contamination is of utmost importance since the consumption of insanitary or unhygienic food can lead to catastrophic illness. This paper presents a first-time review of the open literature focused on the advances in the THz sensing for microbiological contamination of food and water and state-of-theart network architectures, applications, industrial trends and recent developments. Finally, open challenges and future research directions are presented with in the field.

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“…Its utility stems from solid-state compounds and molecules containing low-energy vibrations that, taken as a whole in this region, serve as spectral "fingerprints" usable for their detection and characterization. THz spectroscopy of condensed-phase biological samples are investigated ranging from the simple crystalline forms of amino acids, carbohydrates, and polypeptides to the more complex aqueous forms of small proteins, DNA, and RNA [9][10][11][12][13][14]. THz hydration studies uncovered that the dynamical hydration shell of saccharides consists of several hundred water molecules and up to thousand water molecules for proteins [15][16][17].…”

Section: Introductionmentioning

confidence: 99%

Terahertz Absorption Spectroscopy of Benzamide, Acrylamide, Caprolactam, Salicylamide, and Sulfanilamide in the Solid State

Jiang

Zhou

Wen

et al. 2014

Journal of Spectroscopy

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Terahertz (THz) absorption spectra of the similarly structured molecules with amide groups including benzamide, acrylamide, caprolactam, salicylamide, and sulfanilamide in the solid phase at room temperature and 7.8 K for salicylamide are reported and compared to infrared vibrational spectral calculations using density functional theory. The results of THz absorption spectra show that the molecules have characteristic bands in the region of 0.2–2.6 THz (~7–87 cm−1). THz technique can be used to distinguish different molecules with amide groups. In the THz region benzamide has three bands at 0.83, 1.63, and 1.73 THz; the bands are located at 1.44 and 2.00 THz for acrylamide; the bands at 1.24, 1.66 and 2.12 THz are observed for caprolactam. The absorption bands are located at 1.44, 1.63, and 2.39 THz at room temperature, and at 1.22, 1.46, 1.66, and 2.41 THz at low temperature for salicylamide. The bands at 1.63, 1.78, 2.00, and 2.20 THz appear for sulfanilamide. These bands in the THz region may be related to torsion, rocking, wagging, and other modes of different groups in the molecules.

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Terahertz absorption spectra of some saccharides and their metal complexes

Cited by 32 publications

References 33 publications

Oxovanadium(IV) complexes of carbohydrates: A brief overview

Oxovanadium(IV) complexes of carbohydrates: A brief overview

State-of-the-art in terahertz sensing for food and water security – A comprehensive review

Terahertz Absorption Spectroscopy of Benzamide, Acrylamide, Caprolactam, Salicylamide, and Sulfanilamide in the Solid State

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