Microporous Materials Characterized by Vibrational Spectroscopies

Optical vibrational techniques show a high potentiality in many biomedical fields for their characteristics of high sensitivity in revealing detailed information on composition, structure, and molecular interaction with reduced analysis time. In the last years, we have used these techniques for investigating gingival crevicular fluid (GCF) and periodontal ligament (PDL) during orthodontic tooth treatment. The analysis with Raman and infrared signals of GCF and PDL samples highlighted that different days of orthodontic force application causes modifications in the molecular secondary structure at specific wavenumbers related to the Amide I, Amide III, CH deformation, and CH3/CH2. In the present review, we report the most relevant results and a brief description of the experimental techniques and data analysis procedure in order to evidence that the vibrational spectroscopies could be a potential useful tool for an immediate monitoring of the individual patient’s response to the orthodontic tooth movement, aiming to more personalized treatment reducing any side effects.

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17O NMR spectroscopy of crystalline microporous materials

Chemical Science ◽

10.1039/d1sc00552a ◽

2021 ◽

Vol 12 (14) ◽

pp. 5016-5036

Author(s):

Sharon E. Ashbrook ◽

Zachary H. Davis ◽

Russell E. Morris ◽

Cameron M. Rice

Keyword(s):

Nmr Spectroscopy ◽

Local Structure ◽

Chemical Reactivity ◽

Cost Effective ◽

Microporous Materials ◽

Isotopic Enrichment ◽

17O Nmr ◽

17O Nmr Spectroscopy

Cost-effective and atom-efficient isotopic enrichment enables 17O NMR spectroscopy of microporous materials to be used to probe local structure and disorder and to explore chemical reactivity.

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Softening upon Adsorption in Microporous Materials: A Counterintuitive Mechanical Response

The Journal of Physical Chemistry Letters ◽

10.1021/acs.jpclett.5b01965 ◽

2015 ◽

Vol 6 (21) ◽

pp. 4265-4269 ◽

Cited By ~ 11

Author(s):

Félix Mouhat ◽

David Bousquet ◽

Anne Boutin ◽

Lila Bouëssel du Bourg ◽

François-Xavier Coudert ◽

...

Keyword(s):

Mechanical Response ◽

Microporous Materials

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Photoinduced charge separation in microporous and mesoporous materials

Canadian Journal of Chemistry ◽

10.1139/v10-127 ◽

2011 ◽

Vol 89 (3) ◽

pp. 257-265 ◽

Cited By ~ 3

Author(s):

Ranjit T. Koodali

Keyword(s):

Mesoporous Materials ◽

Charge Separation ◽

Organic Molecules ◽

Microporous Materials ◽

Photoinduced Charge Separation ◽

Photoinduced Charge ◽

Mcm 41

A review of photoinduced charge separation of organic molecules in microporous and mesoporous materials is presented. In particular, the photoionization of N-alkylphenothiazine (PCn), N,N,N′,N′-tetramethylbenzidine (TMB), and porphyrin in microporous materials, such as zeolites, aluminophosphates (AlPOs), silicoaluminophosphates (SAPOs), and mesoporous materials, such as MCM-41, MCM-48, and SBA-15, is discussed.

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