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Vlasenko NV, Yanushevska OI, Didenko OZ, Strizhak PE. Glycerol Oligomerization over Titania-Based Catalyst Compositions. Chemistry 2024; 30:e202302733. [PMID: 37962034 DOI: 10.1002/chem.202302733] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2023] [Revised: 10/04/2023] [Accepted: 11/14/2023] [Indexed: 11/15/2023]
Abstract
The possibility of using TiO2 -based compositions: individual and sulfated titania, and their composites with carbon nanotubes as catalysts for glycerol oligomerization has been displayed. The effect of modification of TiO2 with sulfur and carbon nanotubes on acid-base and catalytic characteristics in the glycerol conversion was investigated. The activation of glycerol on the catalysts has been studied using attenuated total reflectance Fourier transform infrared (ATR-FTIR) spectroscopy. Only the samples based on sulfated titania are active over glycerol transformation, showing up to 58.7 % conversion. This is explained by the presence of strong base sites. Glycerides up to pentaglycerides, both linear and nonlinear structure are formed by glycerol oligomerization over TiO2 -S. The addition of nanotubes to the catalyst reduces both the glycerol conversion (up to 10.5 %) and the yield of glycerides. However, the spectrum of the resulting products is significantly narrowed, increasing the selectivity for short-chain glycerides: the portion of diglycerides reaches 72 %, and triglycerides 21 %. Herewith, glycerides of a linear structure only formed.
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Affiliation(s)
- Nina V Vlasenko
- LV Pysarzhevskii Institute of Physical Chemistry, National Academy of Sciences of Ukraine, Prosp. Nauky 31, 03028, Kyiv, Ukraine
| | - Olena I Yanushevska
- National Technical University of Ukraine, "Igor Sikorsky Kyiv Polytechnic Institute", Prosp. Peremohy, 37, 03056, Kyiv, Ukraine
| | - Olga Z Didenko
- LV Pysarzhevskii Institute of Physical Chemistry, National Academy of Sciences of Ukraine, Prosp. Nauky 31, 03028, Kyiv, Ukraine
| | - Peter E Strizhak
- LV Pysarzhevskii Institute of Physical Chemistry, National Academy of Sciences of Ukraine, Prosp. Nauky 31, 03028, Kyiv, Ukraine
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2
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Zhu Y, Chen Z, Zhou W, Yu Y, Tornari V. Photoacoustic speckle pattern interferometry for detecting cracks of different sizes. OPTICS EXPRESS 2023; 31:40328-40344. [PMID: 38041337 DOI: 10.1364/oe.502300] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/03/2023] [Accepted: 10/16/2023] [Indexed: 12/03/2023]
Abstract
A system and method for non-destructive detection of cracks of different width and depths based on digital speckle interferometry coupled with pulsed laser excitation is introduced and tested. Based on photoacoustic effect, acoustic waves are induced onto the rear of the samples by pumping a pulsed laser beam on it. The generated mechanical wave propagates from the rear surface of the sample to the front while front surface is monitored by speckle interferometry. In order to acquire information about surface deformation, the front surface is illuminated by continuous wave laser and interference are imaged onto the camera as speckle images. After processing the produced fringe patterns, it indicates the presence and location of the cracks in qualitative way. In this study, the system and method mentioned above are validated by detecting medium density fiberboard with simulated cracks. The fringe patterns from areas with or without defects are compared and discussed. Besides, the system and method to distinguish and predict cracks sizes is proposed and validated.
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3
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Ali A, Zhaliazka K, Dou T, Holman AP, Kurouski D. Saturation of fatty acids in phosphatidic acid uniquely alters transthyretin stability changing morphology and toxicity of amyloid fibrils. Chem Phys Lipids 2023; 257:105350. [PMID: 37858615 DOI: 10.1016/j.chemphyslip.2023.105350] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2023] [Revised: 10/11/2023] [Accepted: 10/15/2023] [Indexed: 10/21/2023]
Abstract
Transthyretin (TTR) is a small, β-sheet-rich tetrameric protein that transports thyroid hormone thyroxine and retinol. Phospholipids, including phosphatidic acid (PA), can uniquely alter the stability of amyloidogenic proteins. However, the role of PA in TTR aggregation remains unclear. In this study, we investigated the effect of saturation of fatty acids (FAs) in PA on the rate of TTR aggregation. We also reveal the extent to which PAs with different length and saturation of FAs altered the morphology and secondary structure of TTR aggregates. Our results showed that TTR aggregation in the equimolar presence of PAs with different length and saturation of FAs yielded structurally and morphologically different fibrils compared to those formed in the lipid-free environment. We also found that PAs drastically lowered the toxicity of TTR aggregates formed in the presence of this phospholipid. These results shed light on the role of PA in the stability of TTR and transthyretin amyloidosis.
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Affiliation(s)
- Abid Ali
- Department of Biochemistry and Biophysics, Texas A&M University, College Station, TX 77843, United States
| | - Kiryl Zhaliazka
- Department of Biochemistry and Biophysics, Texas A&M University, College Station, TX 77843, United States
| | - Tianyi Dou
- Department of Biochemistry and Biophysics, Texas A&M University, College Station, TX 77843, United States
| | - Aidan P Holman
- Department of Biochemistry and Biophysics, Texas A&M University, College Station, TX 77843, United States; Department of Entomology, Texas A&M University, College Station, TX 77843, United States
| | - Dmitry Kurouski
- Department of Biochemistry and Biophysics, Texas A&M University, College Station, TX 77843, United States; Department of Biomedical Engineering, Texas A&M University, College Station, TX 77843, United States.
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4
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Analysis of texture properties and water-soluble fraction proteome of sea cucumber body wall with different boiling heating treatment. Food Chem 2023; 409:135333. [PMID: 36592605 DOI: 10.1016/j.foodchem.2022.135333] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2022] [Revised: 12/20/2022] [Accepted: 12/25/2022] [Indexed: 12/29/2022]
Abstract
Label-free quantitative proteomic analysis was utilized to determine the key proteins that affect texture properties of sea cucumber body wall (SCBW) with different boiling heating treatment. 862, 363, 315, and 258 proteins were confirmed in water-soluble fractions from fresh group, 0.5 h-, 2 h- and 4 h-heat treatment group, respectively. During boiling heating treatment, proteins with an increased abundance in water-soluble fraction primarily belong to structural proteins, such as collagens, microfibril-associated proteins, glycoproteins, and muscle proteins. It was speculated that the degradation of these structural proteins caused the progressive disintegration of network skeleton of collagen fibres and FMs as well as the gelatinization, thus resulted in the decrease of hardness and shear force. Besides, the degradation of FMs was occurred layer by layer during boiling heating treatment, and the fibrilin-1 outer layer degraded first, followed by the fibrilin-2 core component.
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5
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Waeytens J, De Meutter J, Goormaghtigh E, Dazzi A, Raussens V. Determination of Secondary Structure of Proteins by Nanoinfrared Spectroscopy. Anal Chem 2023; 95:621-627. [PMID: 36598929 PMCID: PMC9851152 DOI: 10.1021/acs.analchem.2c01431] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2022] [Accepted: 10/21/2022] [Indexed: 01/05/2023]
Abstract
Nanoscale infrared spectroscopy (AFMIR) is becoming an important tool for the analysis of biological sample, in particular protein assemblies, at the nanoscale level. While the amide I band is usually used to determine the secondary structure of proteins in Fourier transform infrared spectroscopy, no tool has been developed so far for AFMIR. The paper introduces a method for the study of secondary structure of protein based on a protein library of 38 well-characterized proteins. Ascending stepwise linear regression (ASLR) and partial least square (PLS) regression were used to correlate spectrum characteristic bands with the major secondary structures (α-helixes and β-sheets). ASLR appears to provide better results than PLS. The secondary structure predictions are characterized by a root mean square standard error in a cross validation of 6.39% for α-helixes and 6.23% for β-sheets.
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Affiliation(s)
- Jehan Waeytens
- Center
for Structural Biology and Bioinformatics, Laboratory for the Structure
and Function of Biological Membranes, Université
libre de Bruxelles, 1050Brussels, Belgium
- Institut
de Chimie Physique d’Orsay, CNRS
UMR8000, Université Paris-Saclay, 91400Orsay, France
| | - Joëlle De Meutter
- Center
for Structural Biology and Bioinformatics, Laboratory for the Structure
and Function of Biological Membranes, Université
libre de Bruxelles, 1050Brussels, Belgium
| | - Erik Goormaghtigh
- Center
for Structural Biology and Bioinformatics, Laboratory for the Structure
and Function of Biological Membranes, Université
libre de Bruxelles, 1050Brussels, Belgium
| | - Alexandre Dazzi
- Institut
de Chimie Physique d’Orsay, CNRS
UMR8000, Université Paris-Saclay, 91400Orsay, France
| | - Vincent Raussens
- Center
for Structural Biology and Bioinformatics, Laboratory for the Structure
and Function of Biological Membranes, Université
libre de Bruxelles, 1050Brussels, Belgium
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6
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Bazin D, Lucas IT, Rouzière S, Elkaim E, Mocuta C, Réguer S, Reid DG, Mathurin J, Dazzi A, Deniset-Besseau A, Petay M, Frochot V, Haymann JP, Letavernier E, Verpont MC, Foy E, Bouderlique E, Colboc H, Daudon M. Profile of an “at cutting edge” pathology laboratory for pathological human deposits: from nanometer to in vivo scale analysis on large scale facilities. CR CHIM 2022. [DOI: 10.5802/crchim.199] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
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7
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Kim J, Baek SY, Schlecht SH, Beaulieu ML, Bussau L, Chen J, Ashton-Miller JA, Wojtys EM, Banaszak Holl MM. Anterior cruciate ligament microfatigue damage detected by collagen autofluorescence in situ. J Exp Orthop 2022; 9:74. [PMID: 35907038 PMCID: PMC9339057 DOI: 10.1186/s40634-022-00507-6] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/29/2022] [Accepted: 07/12/2022] [Indexed: 11/10/2022] Open
Abstract
PURPOSE Certain types of repetitive sub-maximal knee loading cause microfatigue damage in the human anterior cruciate ligament (ACL) that can accumulate to produce macroscopic tissue failure. However, monitoring the progression of that ACL microfatigue damage as a function of loading cycles has not been reported. To explore the fatigue process, a confocal laser endomicroscope (CLEM) was employed to capture sub-micron resolution fluorescence images of the tissue in situ. The goal of this study was to quantify the in situ changes in ACL autofluorescence (AF) signal intensity and collagen microstructure as a function of the number of loading cycles. METHODS Three paired and four single cadaveric knees were subjected to a repeated 4 times bodyweight landing maneuver known to strain the ACL. The paired knees were used to compare the development of ACL microfatigue damage on the loaded knee after 100 consecutive loading cycles, relative to the contralateral unloaded control knee, through second harmonic generation (SHG) and AF imaging using confocal microscopy (CM). The four single knees were used for monitoring progressive ACL microfatigue damage development by AF imaging using CLEM. RESULTS The loaded knees from each pair exhibited a statistically significant increase in AF signal intensity and decrease in SHG signal intensity as compared to the contralateral control knees. Additionally, the anisotropy of the collagen fibers in the loaded knees increased as indicated by the reduced coherency coefficient. Two out of the four single knee ACLs failed during fatigue loading, and they exhibited an order of magnitude higher increase in autofluorescence intensity per loading cycle as compared to the intact knees. Of the three regions of the ACL - proximal, midsubstance and distal - the proximal region of ACL fibers exhibited the highest AF intensity change and anisotropy of fibers. CONCLUSIONS CLEM can capture changes in ACL AF and collagen microstructures in situ during and after microfatigue damage development. Results suggest a large increase in AF may occur in the final few cycles immediately prior to or at failure, representing a greater plastic deformation of the tissue. This reinforces the argument that existing microfatigue damage can accumulate to induce bulk mechanical failure in ACL injuries. The variation in fiber organization changes in the ACL regions with application of load is consistent with the known differences in loading distribution at the ACL femoral enthesis.
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Affiliation(s)
- Jinhee Kim
- Department of Chemical & Biological Engineering, Monash University, Melbourne, Australia.,Department of Chemistry, University of Michigan, Ann Arbor, MI, USA
| | - So Young Baek
- Department of Mechanical Engineering, University of Michigan, Ann Arbor, MI, USA
| | - Stephen H Schlecht
- Department of Orthopaedic Surgery, Indiana University School of Medicine, Indianapolis, IN, USA
| | - Mélanie L Beaulieu
- Department of Orthopaedic Surgery, University of Michigan, Ann Arbor, MI, USA
| | | | - Junjie Chen
- Department of Chemistry, University of Michigan, Ann Arbor, MI, USA
| | | | - Edward M Wojtys
- Department of Orthopaedic Surgery, University of Michigan, Ann Arbor, MI, USA.
| | - Mark M Banaszak Holl
- Department of Chemical & Biological Engineering, Monash University, Melbourne, Australia.
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8
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Raussens V, Waeytens J. Characterization of Bacterial Amyloids by Nano-infrared Spectroscopy. Methods Mol Biol 2022; 2538:117-129. [PMID: 35951297 DOI: 10.1007/978-1-0716-2529-3_9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Atomic force microscopy has been used for decades to study the topography of proteins during aggregation but with a lack of information on the secondary structure. On the contrary, infrared spectroscopy was able to study structural changes during the aggregation, but this analysis is complicated due to the presence of different species in mixtures and the poor spatial (~μm) resolution of the FTIR microscopy. Recently, Professor Alexandre Dazzi combined those techniques in the so-called AFM-IR. This method allows acquiring IR spectra at the nanometric scale and becomes a new standard method for the characterization of amyloid fibrils and, more generally, for the aggregation of proteins.
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Affiliation(s)
- Vincent Raussens
- Structure et Fonction des Membranes Biologiques, Université libre de Bruxelles, Bruxelles, Belgium
| | - Jehan Waeytens
- Structure et Fonction des Membranes Biologiques, Université libre de Bruxelles, Bruxelles, Belgium.
- Institut de Chimie Physique, CNRS UMR8000, Université Paris-Sud, Université Paris-Saclay, Orsay, France.
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9
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Deniset-Besseau A, Coat R, Moutel B, Rebois R, Mathurin J, Grizeau D, Dazzi A, Gonçalves O. Revealing Lipid Body Formation and its Subcellular Reorganization in Oleaginous Microalgae Using Correlative Optical Microscopy and Infrared Nanospectroscopy. APPLIED SPECTROSCOPY 2021; 75:1538-1547. [PMID: 34608808 DOI: 10.1177/00037028211050659] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
The purpose of this work is to develop an integrated imaging approach to characterize without labeling at the sub-cellular level the formation of lipid body droplets (LBs) in microalgae undergoing nitrogen starvation. First conventional optical microscopy approaches, gas chromatography, and turbidimetry measurements allowed to monitor the biomass and the total lipid content in the oleaginous microalgae Parachlorella kesslerii during the starvation process. Then a local analysis of the LBs was proposed using an innovative infrared nanospectroscopy technique called atomic force microscopy-based infrared spectroscopy (AFM-IR). This label-free technique assessed the formation of LBs and allowed to look into the LB composition thanks to the acquisition of local infrared spectra. Last correlative measurements using fluorescence microscopy and AFM-IR were performed to investigate the subcellular reorganization of LB and the chloroplasts.
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Affiliation(s)
| | - Rémy Coat
- LUNAM Université, Université de Nantes, GEPEA, UMR CNRS-6144, Saint-Nazaire Cedex, France
| | - Benjamin Moutel
- LUNAM Université, Université de Nantes, GEPEA, UMR CNRS-6144, Saint-Nazaire Cedex, France
| | - Rolando Rebois
- Université Paris-Saclay, CNRS, Institut de Chimie Physique, UMR 8000, Orsay, France
| | - Jérémie Mathurin
- Université Paris-Saclay, CNRS, Institut de Chimie Physique, UMR 8000, Orsay, France
| | - Dominique Grizeau
- LUNAM Université, Université de Nantes, GEPEA, UMR CNRS-6144, Saint-Nazaire Cedex, France
| | - Alexandre Dazzi
- Université Paris-Saclay, CNRS, Institut de Chimie Physique, UMR 8000, Orsay, France
| | - Olivier Gonçalves
- LUNAM Université, Université de Nantes, GEPEA, UMR CNRS-6144, Saint-Nazaire Cedex, France
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10
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Schmeltz M, Robinet L, Heu-Thao S, Sintès JM, Teulon C, Ducourthial G, Mahou P, Schanne-Klein MC, Latour G. Noninvasive quantitative assessment of collagen degradation in parchments by polarization-resolved SHG microscopy. SCIENCE ADVANCES 2021; 7:7/29/eabg1090. [PMID: 34272247 PMCID: PMC8284887 DOI: 10.1126/sciadv.abg1090] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/16/2020] [Accepted: 06/02/2021] [Indexed: 06/13/2023]
Abstract
Nondestructive and noninvasive investigation techniques are highly sought-after to establish the degradation state of historical parchments, which is up to now assessed by thermal techniques that are invasive and destructive. We show that advanced nonlinear optical (NLO) microscopy enables quantitative in situ mapping of parchment degradation at the micrometer scale. We introduce two parameters that are sensitive to different degradation stages: the ratio of two-photon excited fluorescence to second harmonic generation (SHG) signals probes severe degradation, while the anisotropy parameter extracted from polarization-resolved SHG measurements is sensitive to early degradation. This approach is first validated by comparing NLO quantitative parameters to thermal measurements on artificially altered contemporary parchments. We then analyze invaluable parchments from the Middle Ages and show that we can map their conservation state and assess the impact of a restoration process. NLO quantitative microscopy should therefore help to identify parchments most at risk and optimize restoration methods.
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Affiliation(s)
- Margaux Schmeltz
- Laboratoire d'Optique et Biosciences, Ecole polytechnique, CNRS, INSERM, Institut Polytechnique de Paris, Palaiseau, France
| | - Laurianne Robinet
- Centre de Recherche sur la Conservation (CRC), Muséum national d'Histoire naturelle, Ministère de la Culture, CNRS, Paris, France
| | - Sylvie Heu-Thao
- Centre de Recherche sur la Conservation (CRC), Muséum national d'Histoire naturelle, Ministère de la Culture, CNRS, Paris, France
| | - Jean-Marc Sintès
- Laboratoire d'Optique et Biosciences, Ecole polytechnique, CNRS, INSERM, Institut Polytechnique de Paris, Palaiseau, France
| | - Claire Teulon
- Laboratoire d'Optique et Biosciences, Ecole polytechnique, CNRS, INSERM, Institut Polytechnique de Paris, Palaiseau, France
| | - Guillaume Ducourthial
- Laboratoire d'Optique et Biosciences, Ecole polytechnique, CNRS, INSERM, Institut Polytechnique de Paris, Palaiseau, France
| | - Pierre Mahou
- Laboratoire d'Optique et Biosciences, Ecole polytechnique, CNRS, INSERM, Institut Polytechnique de Paris, Palaiseau, France
| | - Marie-Claire Schanne-Klein
- Laboratoire d'Optique et Biosciences, Ecole polytechnique, CNRS, INSERM, Institut Polytechnique de Paris, Palaiseau, France
| | - Gaël Latour
- Laboratoire d'Optique et Biosciences, Ecole polytechnique, CNRS, INSERM, Institut Polytechnique de Paris, Palaiseau, France.
- Université Paris-Saclay, Saint-Aubin, France
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11
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Lee SH, Lee ES, Bae IH, Kim SH, Park NH, Shim JS, Lee CS, Lee J. The Protective Effect of Ganoderma lucidum Extract in Ultraviolet B-Induced Human Dermal Fibroblasts and Skin Equivalent Models. Ann Dermatol 2021; 32:251-254. [PMID: 33911747 PMCID: PMC7992618 DOI: 10.5021/ad.2020.32.3.251] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2019] [Revised: 06/26/2019] [Accepted: 08/20/2019] [Indexed: 11/18/2022] Open
Affiliation(s)
- Sung Hoon Lee
- Amorepacific Corporation R&D Center, Yongin, Korea.,Department of Integrative Biotechnology, College of Biotechnology and Bioengineering, Sungkyunkwan University, Suwon, Korea
| | - Eun-Soo Lee
- Amorepacific Corporation R&D Center, Yongin, Korea
| | - Il-Hong Bae
- Amorepacific Corporation R&D Center, Yongin, Korea
| | - Se-Hwa Kim
- Center for Nano-Bio Measurement, Korea Research Institute of Standards and Science, Daejeon, Korea.,Department of Medical Physics, Korea University of Science and Technology, Daejeon, Korea
| | | | - Jin Sup Shim
- Amorepacific Corporation R&D Center, Yongin, Korea
| | - Chang Seok Lee
- Department of Beauty and Cosmetic Science, Eulji University, Seongnam, Korea
| | - Jongsung Lee
- Department of Integrative Biotechnology, College of Biotechnology and Bioengineering, Sungkyunkwan University, Suwon, Korea
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12
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Saada NS, Abdel-Maksoud G, Abd El-Aziz M, Youssef A. Green synthesis of silver nanoparticles, characterization, and use for sustainable preservation of historical parchment against microbial biodegradation. BIOCATALYSIS AND AGRICULTURAL BIOTECHNOLOGY 2021. [DOI: 10.1016/j.bcab.2021.101948] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
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13
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Di Natale C, De Rosa D, Profeta M, Jamaledin R, Attanasio A, Lagreca E, Scognamiglio PL, Netti PA, Vecchione R. Design of biodegradable bi-compartmental microneedles for the stabilization and the controlled release of the labile molecule collagenase for skin healthcare. J Mater Chem B 2021; 9:392-403. [DOI: 10.1039/d0tb02279a] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Abstract
Polymeric microneedles (MNs) have emerged as a novel class of drug delivery system thanks to their ability in penetrating the skin with no pain, encapsulate active proteins and in particular, proposed bicompartimental MNs can tune protein release.
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Affiliation(s)
- Concetta Di Natale
- Center for Advanced Biomaterials for HealthCare@CRIB
- Istituto Italiano di Tecnologia
- Napoli 80125
- Italy
- Interdisciplinary Research Center of Biomaterials
| | - Domenico De Rosa
- Center for Advanced Biomaterials for HealthCare@CRIB
- Istituto Italiano di Tecnologia
- Napoli 80125
- Italy
| | - Martina Profeta
- Center for Advanced Biomaterials for HealthCare@CRIB
- Istituto Italiano di Tecnologia
- Napoli 80125
- Italy
| | - Rezvan Jamaledin
- Center for Advanced Biomaterials for HealthCare@CRIB
- Istituto Italiano di Tecnologia
- Napoli 80125
- Italy
| | - Alessandro Attanasio
- Center for Advanced Biomaterials for HealthCare@CRIB
- Istituto Italiano di Tecnologia
- Napoli 80125
- Italy
| | - Elena Lagreca
- Center for Advanced Biomaterials for HealthCare@CRIB
- Istituto Italiano di Tecnologia
- Napoli 80125
- Italy
| | | | - Paolo Antonio Netti
- Center for Advanced Biomaterials for HealthCare@CRIB
- Istituto Italiano di Tecnologia
- Napoli 80125
- Italy
- Interdisciplinary Research Center of Biomaterials
| | - Raffaele Vecchione
- Center for Advanced Biomaterials for HealthCare@CRIB
- Istituto Italiano di Tecnologia
- Napoli 80125
- Italy
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14
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Cappa F, Paganoni I, Carsote C, Schreiner M, Badea E. Studies on the effect of dry-heat ageing on parchment deterioration by vibrational spectroscopy and micro hot table method. Polym Degrad Stab 2020. [DOI: 10.1016/j.polymdegradstab.2020.109375] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
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15
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Evaluation and utilization of lemongrass oil nanoemulsion for disinfection of documentary heritage based on parchment. BIOCATALYSIS AND AGRICULTURAL BIOTECHNOLOGY 2020. [DOI: 10.1016/j.bcab.2020.101839] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
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16
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Kurouski D, Dazzi A, Zenobi R, Centrone A. Infrared and Raman chemical imaging and spectroscopy at the nanoscale. Chem Soc Rev 2020; 49:3315-3347. [PMID: 32424384 PMCID: PMC7675782 DOI: 10.1039/c8cs00916c] [Citation(s) in RCA: 134] [Impact Index Per Article: 33.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
The advent of nanotechnology, and the need to understand the chemical composition at the nanoscale, has stimulated the convergence of IR and Raman spectroscopy with scanning probe methods, resulting in new nanospectroscopy paradigms. Here we review two such methods, namely photothermal induced resonance (PTIR), also known as AFM-IR and tip-enhanced Raman spectroscopy (TERS). AFM-IR and TERS fundamentals will be reviewed in detail together with their recent crucial advances. The most recent applications, now spanning across materials science, nanotechnology, biology, medicine, geology, optics, catalysis, art conservation and other fields are also discussed. Even though AFM-IR and TERS have developed independently and have initially targeted different applications, rapid innovation in the last 5 years has pushed the performance of these, in principle spectroscopically complimentary, techniques well beyond initial expectations, thus opening new opportunities for their convergence. Therefore, subtle differences and complementarity will be highlighted together with emerging trends and opportunities.
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Affiliation(s)
- Dmitry Kurouski
- Department Biochemistry and Biophysics, Texas A&M University, 2128 TAMU, College Station, TX 77843, USA.
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17
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Non-Linear Microscopy: A Well-Established Technique for Biological Applications towards Serving as a Diagnostic Tool for in situ Cultural Heritage Studies. SUSTAINABILITY 2020. [DOI: 10.3390/su12041409] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Abstract
A range of sophisticated imaging techniques have been developed in recent years that can reveal the surface structure of cultural heritage objects with varying precision. In combination with various spectroscopic methods, they allow the study of the chemical composition of the object; thus, conclusions can be drawn about the origin of the object or its initial components, method, or time of creation, authenticity, mechanisms of degradation, and ways of further conservation. At present, different techniques can be applied to a wide range of cultural heritage objects, such as varnishes, paintings, archaeological objects, binding media, paper-based documents, parchments, marbles, frescoes, as well as various objects made of leather, fabric, stone, ceramics and glass, wood, or metal. One of the main needs in the study of cultural heritage (CH) is the transportability/portability of the research equipment, since many pieces under investigation cannot be moved to the laboratory, either because of their size, inseparability (for example, frescoes on walls, mural paintings in caves), or the threat of damage. In this work, we briefly overview the main optical- and laser-based methods used for the study of cultural heritage objects indicating the scope of their application, and we focus on the applications of non-linear microscopic methods for the investigation of a series of artifacts. We also discuss all the requirements for the construction of a prototype transportable non-linear optical system that will be used as a novel diagnostic tool for in situ studies of CH assets. The availability of such a transportable workstation will significantly improve the study and characterization of various types of CH objects and will constitute an extremely useful diagnostic tool for heritage scientists dealing with a variety of investigations.
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Recent trends in the application of Fourier Transform Infrared (FT-IR) spectroscopy in Heritage Science: from micro- to non-invasive FT-IR. PHYSICAL SCIENCES REVIEWS 2019. [DOI: 10.1515/psr-2018-0006] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Abstract
The relevance of FT-IR spectroscopy in heritage science has experienced a constant grow in the last two decades owing to analytical peculiarities that make it an extremely useful tool to answer the questions posed by the study and conservation of art-historical and archaeological materials. High versatility, sensitivity and molecular specificity are, in fact, all requirements that FT-IR spectroscopy fulfils allowing for the investigation of the chemical properties of heritage materials spanning from the micro- to the macro-scale and offering a variety of approaches to minimize sample manipulation and maximize extracted information. Molecular identification and localisation at high lateral resolution of organic and inorganic components in micro-samples was, over recently, the mostly exploited use of FT-IR in heritage science; however, benefiting from technological progress and advances in optical materials and components achieved in the last decade, it now stands out also for non-invasive surface analysis of artworks by fully portable instrumentation.
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Ma X, Beltran V, Ramer G, Pavlidis G, Parkinson DY, Thoury M, Meldrum T, Centrone A, Berrie BH. Revealing the Distribution of Metal Carboxylates in Oil Paint from the Micro- to Nanoscale. Angew Chem Int Ed Engl 2019; 58:11652-11656. [PMID: 31226237 PMCID: PMC9798385 DOI: 10.1002/anie.201903553] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2019] [Revised: 05/24/2019] [Indexed: 12/31/2022]
Abstract
Oil paints comprise pigments, drying oils, and additives that together confer desirable properties, but can react to form metal carboxylates (soaps) that may damage artworks over time. To obtain information on soap formation and aggregation, we introduce a new tapping-mode measurement paradigm for the photothermal induced resonance (PTIR) technique that enables nanoscale IR spectroscopy and imaging on highly heterogenous and rough paint thin sections. PTIR is used in combination with μ-computed tomography and IR microscopy to determine the distribution of metal carboxylates in a 23-year old oil paint of known formulation. Results show that heterogeneous agglomerates of Al-stearate and a Zn-carboxylate complex with Zn-stearate nano-aggregates in proximity are distributed randomly in the paint. The gradients of zinc carboxylates are unrelated to the Al-stearate distribution. These measurements open a new chemically sensitive nanoscale observation window on the distribution of metal soaps that can bring insights for understanding soap formation in oil paint.
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Affiliation(s)
- Xiao Ma
- Scientific Research Department, Division of Conservation, National Gallery of Art, 2000B South Club Drive, Landover, MD 20785 (USA)
| | | | | | - Georges Pavlidis
- Nanoscale Device Characterization Division, Physical Measurement Laboratory, National Institute of Standards and Technology, 100 Bureau Drive, Gaithersburg, MD 20899 (USA)
| | - Dilworth Y. Parkinson
- Advanced Light Source, Lawrence Berkeley National Laboratory, 1 Cyclotron Rd., Berkeley, CA 94720 (USA)
| | - Mathieu Thoury
- IPANEMA, CNRS, ministère de la Culture et de la Communication Université de Versailles Saint-Quentin-en-Yvelines, USR 3461, Université Paris-Saclay, 91128 Gif-sur-Yvette (France)
| | - Tyler Meldrum
- Department of Chemistry, The College of William & Mary, 540 Landrum Drive, Williamsburg, VA 23188 (USA)
| | - Andrea Centrone
- Nanoscale Device Characterization Division, Physical Measurement Laboratory, National Institute of Standards and Technology, 100 Bureau Drive, Gaithersburg, MD 20899 (USA)
| | - Barbara H. Berrie
- Scientific Research Department, Division of Conservation, National Gallery of Art, 2000B South Club Drive, Landover, MD 20785 (USA)
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Ma X, Beltran V, Ramer G, Pavlidis G, Parkinson DY, Thoury M, Meldrum T, Centrone A, Berrie BH. Revealing the Distribution of Metal Carboxylates in Oil Paint from the Micro‐ to Nanoscale. Angew Chem Int Ed Engl 2019. [DOI: 10.1002/ange.201903553] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Affiliation(s)
- Xiao Ma
- Scientific Research Department, Division of Conservation National Gallery of Art 2000B South Club Drive Landover MD 20785 USA
| | - Victoria Beltran
- IPANEMA CNRS ministère de la Culture et de la Communication Université de Versailles Saint-Quentin-en-Yvelines, USR 3461 Université Paris-Saclay 91128 Gif-sur-Yvette France
| | - Georg Ramer
- Nanoscale Device Characterization Division Physical Measurement Laboratory National Institute of Standards and Technology 100 Bureau Drive Gaithersburg MD 20899 USA
- Maryland Nanocenter University of Maryland College Park MD 20742 USA
| | - Georges Pavlidis
- Nanoscale Device Characterization Division Physical Measurement Laboratory National Institute of Standards and Technology 100 Bureau Drive Gaithersburg MD 20899 USA
| | - Dilworth Y. Parkinson
- Advanced Light Source Lawrence Berkeley National Laboratory 1 Cyclotron Rd. Berkeley CA 94720 USA
| | - Mathieu Thoury
- IPANEMA CNRS ministère de la Culture et de la Communication Université de Versailles Saint-Quentin-en-Yvelines, USR 3461 Université Paris-Saclay 91128 Gif-sur-Yvette France
| | - Tyler Meldrum
- Department of Chemistry William & Mary 540 Landrum Drive Williamsburg VA 23188 USA
| | - Andrea Centrone
- Nanoscale Device Characterization Division Physical Measurement Laboratory National Institute of Standards and Technology 100 Bureau Drive Gaithersburg MD 20899 USA
| | - Barbara H. Berrie
- Scientific Research Department, Division of Conservation National Gallery of Art 2000B South Club Drive Landover MD 20785 USA
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Chen J, Kim J, Shao W, Schlecht SH, Baek SY, Jones AK, Ahn T, Ashton-Miller JA, Banaszak Holl MM, Wojtys EM. An Anterior Cruciate Ligament Failure Mechanism. Am J Sports Med 2019; 47:2067-2076. [PMID: 31307223 PMCID: PMC6905051 DOI: 10.1177/0363546519854450] [Citation(s) in RCA: 32] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
BACKGROUND Nearly three-quarters of anterior cruciate ligament (ACL) injuries occur as "noncontact" failures from routine athletic maneuvers. Recent in vitro studies revealed that repetitive strenuous submaximal knee loading known to especially strain the ACL can lead to its fatigue failure, often at the ACL femoral enthesis. HYPOTHESIS ACL failure can be caused by accumulated tissue fatigue damage: specifically, chemical and structural evidence of this fatigue process will be found at the femoral enthesis of ACLs from tested cadaveric knees, as well as in ACL explants removed from patients undergoing ACL reconstruction. STUDY DESIGN Controlled laboratory study. METHODS One knee from each of 7 pairs of adult cadaveric knees were repetitively loaded under 4 times-body weight simulated pivot landings known to strain the ACL submaximally while the contralateral, unloaded knee was used as a comparison. The chemical and structural changes associated with this repetitive loading were characterized at the ACL femoral enthesis at multiple hierarchical collagen levels by employing atomic force microscopy (AFM), AFM-infrared spectroscopy, molecular targeting with a fluorescently labeled collagen hybridizing peptide, and second harmonic imaging microscopy. Explants from ACL femoral entheses from the injured knee of 5 patients with noncontact ACL failure were also characterized via similar methods. RESULTS AFM-infrared spectroscopy and collagen hybridizing peptide binding indicate that the characteristic molecular damage was an unraveling of the collagen molecular triple helix. AFM detected disruption of collagen fibrils in the forms of reduced topographical surface thickness and the induction of ~30- to 100-nm voids in the collagen fibril matrix for mechanically tested samples. Second harmonic imaging microscopy detected the induction of ~10- to 100-µm regions where the noncentrosymmetric structure of collagen had been disrupted. These mechanically induced changes, ranging from molecular to microscale disruption of normal collagen structure, represent a previously unreported aspect of tissue fatigue damage in noncontact ACL failure. Confirmatory evidence came from the explants of 5 patients undergoing ACL reconstruction, which exhibited the same pattern of molecular, nanoscale, and microscale structural damage detected in the mechanically tested cadaveric samples. CONCLUSION The authors found evidence of accumulated damage to collagen fibrils and fibers at the ACL femoral enthesis at the time of surgery for noncontact ACL failure. This tissue damage was similar to that found in donor knees subjected in vitro to repetitive 4 times-body weight impulsive 3-dimensional loading known to cause a fatigue failure of the ACL. CLINICAL RELEVANCE These findings suggest that some ACL injuries may be due to an exacerbation of preexisting hierarchical tissue damage from activities known to place larger-than-normal loads on the ACL. Too rapid an increase in these activities could cause ACL tissue damage to accumulate across length scales, thereby affecting ACL structural integrity before it has time to repair. Prevention necessitates an understanding of how ACL loading magnitude and frequency are anabolic, neutral, or catabolic to the ligament.
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Affiliation(s)
- Junjie Chen
- Department of Orthopaedic Surgery, University of Michigan, Ann Arbor, MI, USA
- Department of Chemistry, University of Michigan, Ann Arbor, MI, USA
| | - Jinhee Kim
- Department of Chemistry, University of Michigan, Ann Arbor, MI, USA
| | - Wenhao Shao
- Department of Chemistry, University of Michigan, Ann Arbor, MI, USA
| | - Stephen H. Schlecht
- Department of Orthopaedic Surgery, University of Michigan, Ann Arbor, MI, USA
- Department of Mechanical Engineering, University of Michigan, Ann Arbor, MI, USA
| | - So Young Baek
- Department of Mechanical Engineering, University of Michigan, Ann Arbor, MI, USA
| | - Alexis K. Jones
- Department of Chemistry, University of Michigan, Ann Arbor, MI, USA
| | - Taeyong Ahn
- Macromolecular Science and Engineering, University of Michigan, Ann Arbor, MI, USA
| | | | | | - Edward M. Wojtys
- Department of Orthopaedic Surgery, University of Michigan, Ann Arbor, MI, USA
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Double-Sided Anti-Reflection Nanostructures on Optical Convex Lenses for Imaging Applications. COATINGS 2019. [DOI: 10.3390/coatings9060404] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
Anti-reflection coatings (ARCs) from the cornea nipple array of the moth-eye remarkably suppress the Fresnel reflection at the interface in broadband wavelength ranges. ARCs on flat glass have been studied to enhance the optical transmittance. However, little research on the implementation of ARCs on curved optical lenses, which are the core element in imaging devices, has been reported. Here, we report double-sided, bio-inspired ARCs on bi-convex lenses with high uniformity. We theoretically optimize the nanostructure geometry, such as the height, period, and morphology, since an anti-reflection property results from the gradually changed effective refractive index by the geometry of nanostructures. In an experiment, the transmittance of an ARCs lens increases up to 10% for a broadband spectrum without distortion in spot size and focal length. Moreover, we demonstrate ~30% improved transmittance of an imaging system composed of three bi-convex lenses, in series with double-sided ARCs (DARCs).
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23
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Watts KE, Blackburn TJ, Pemberton JE. Optical Spectroscopy of Surfaces, Interfaces, and Thin Films: A Status Report. Anal Chem 2019; 91:4235-4265. [PMID: 30790520 DOI: 10.1021/acs.analchem.9b00735] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Affiliation(s)
- Kristen E Watts
- Department of Chemistry and Biochemistry University of Arizona 1306 East University Boulevard , Tucson , Arizona 85721 , United States
| | - Thomas J Blackburn
- Department of Chemistry and Biochemistry University of Arizona 1306 East University Boulevard , Tucson , Arizona 85721 , United States
| | - Jeanne E Pemberton
- Department of Chemistry and Biochemistry University of Arizona 1306 East University Boulevard , Tucson , Arizona 85721 , United States
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Tserevelakis GJ, Tsafas V, Melessanaki K, Zacharakis G, Filippidis G. Combined multiphoton fluorescence microscopy and photoacoustic imaging for stratigraphic analysis of paintings. OPTICS LETTERS 2019; 44:1154-1157. [PMID: 30821736 DOI: 10.1364/ol.44.001154] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/07/2018] [Accepted: 12/17/2018] [Indexed: 06/09/2023]
Abstract
We demonstrate the effective combination of multiphoton and photoacoustic (PA) imaging for the high-resolution stratigraphic analysis of multilayered art objects with emphasis on paintings. A novel convolution-based algorithm is additionally applied for the precise discrimination of nonlinear signals, providing valuable information in regard to the thickness and composition of successive varnish and paint layers in the mock-up samples. On the other hand, PA contrast complements the extracted data by revealing well-hidden graphite underdrawings below the paint at high sensitivity levels. The final composite images are directly compared with cross-sectional brightfield observations, validating the capabilities of the bimodal diagnosis in terms of measurement accuracy and contrast specificity. The presented hybrid diagnostic approach has the potential to optimize delicate interventions in works of art such as the selective removal of aged materials, thus promoting a significantly improved restoration outcome.
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Abstract
Recently, historical and conservation studies have attached an increasing importance to investigating the materials used in historic documents. In particular, the identification of the animal species from which parchments are made is of high importance and is currently performed by either genetic or proteomic methods. Here, we introduce an innovative, non-invasive optical method for identifying animal species based on light-parchment interaction. The method relies on conservation of light energy through reflection, transmission and absorption from the sample, as well as on statistical processing of the collected optical data. Measurements are performed from ultraviolet (UV) to near-infrared (NIR) spectral ranges by a standard spectrophotometer and data are processed by Principal Component Analysis (PCA). PCA data from modern parchments, made of sheep, calf and goat skins, are used as a database for PCA analysis of historical parchments. Using only the first two principal components (PCs), the method confirmed visual diagnostics about parchment appearance and aging, and was able to recognise the origin species of historical parchment of among database clusters. Furthermore, taking into account the whole set of PCs, species identification was achieved, with all results matching perfectly their proteomic counterparts used for method assessment. The validated method compares favourably with genetic and proteomic methods used for the same purpose. In addition to animals’ proteomic and genetic signatures, a unique “optical fingerprint” of the parchments’ origin species is revealed here. This new method is non-invasive, straightforward to implement, potentially cheap and accessible to scholars and conservators, with minimal training. In the context of cultural heritage, the method could help solving questions related to parchment production and, more generally, medieval writing production.
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Vichi A, Eliazyan G, Kazarian SG. Study of the Degradation and Conservation of Historical Leather Book Covers with Macro Attenuated Total Reflection-Fourier Transform Infrared Spectroscopic Imaging. ACS OMEGA 2018; 3:7150-7157. [PMID: 31458877 PMCID: PMC6644838 DOI: 10.1021/acsomega.8b00773] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/20/2018] [Accepted: 06/13/2018] [Indexed: 05/29/2023]
Abstract
The analytical study of historical collagen-based materials such as leather book covers is a complex task for conservation scientists. Historical leather presents a heterogeneous composition of both organic and inorganic materials that show an evident reactivity, particularly when exposed to specific environments. Its correct preservation in archival documents remains challenging as some aspects of its chemical composition, degradation, and effectiveness of conservation treatments are still not fully understood. Here, we describe a novel application of attenuated total reflection (ATR)-Fourier transform infrared spectroscopic imaging coupled with a macro ATR accessory to study historical leather book covers. This nondestructive and high spatial resolution approach has allowed the visualization of degradation phenomena affecting this fragile material, particularly the gelatinization of collagen and, for the first time, the detection of the formation of calcium stearate (metal carboxylates or soaps). In addition, the distribution of modified soybean oil used as a treatment to maintain properties such as elasticity and hydrophobicity of the leather was studied. The effect of anomalous dispersion on the strong IR bands obtained in the ATR mode and the resulting changes to the band positions are also discussed. This research addresses issues that are relevant to the conservation of archival materials of cultural heritage for future generations.
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Affiliation(s)
- Alessandra Vichi
- Department
of Chemical Engineering, Imperial College
London, South Kensington Campus, London SW7 2AZ, U.K.
| | - Gayane Eliazyan
- Mesrop
Mashtots Institute of Ancient Manuscripts, Matenadaran, 53 Mashtots Avenue, Yerevan 0009, Armenia
| | - Sergei G. Kazarian
- Department
of Chemical Engineering, Imperial College
London, South Kensington Campus, London SW7 2AZ, U.K.
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Affiliation(s)
- Lifu Xiao
- Department of Chemistry and Biochemistry, University of Notre Dame, Notre Dame, Indiana 46556, United States
| | - Zachary D Schultz
- Department of Chemistry and Biochemistry, University of Notre Dame, Notre Dame, Indiana 46556, United States
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Chen J, Ahn T, Colón-Bernal ID, Kim J, Banaszak Holl MM. The Relationship of Collagen Structural and Compositional Heterogeneity to Tissue Mechanical Properties: A Chemical Perspective. ACS NANO 2017; 11:10665-10671. [PMID: 29112404 DOI: 10.1021/acsnano.7b06826] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Collagen is the primary protein component in mammalian connective tissues. Over the last 20 years, evidence has mounted that collagen matrices exhibit substantial heterogeneity in their hierarchical structures and that this heterogeneity plays important roles in both structure and function. Herein, an overview of studies addressing the nanoscale compositional and structural heterogeneity is provided and connected to work exploring the mechanical implications for a number of tissues.
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Affiliation(s)
- Junjie Chen
- Department of Chemistry, ‡Macromolecular Science and Engineering, and §Department of Biomedical Engineering, University of Michigan , Ann Arbor, Michigan 48109, United States
| | - Taeyong Ahn
- Department of Chemistry, ‡Macromolecular Science and Engineering, and §Department of Biomedical Engineering, University of Michigan , Ann Arbor, Michigan 48109, United States
| | - Isabel D Colón-Bernal
- Department of Chemistry, ‡Macromolecular Science and Engineering, and §Department of Biomedical Engineering, University of Michigan , Ann Arbor, Michigan 48109, United States
| | - Jinhee Kim
- Department of Chemistry, ‡Macromolecular Science and Engineering, and §Department of Biomedical Engineering, University of Michigan , Ann Arbor, Michigan 48109, United States
| | - Mark M Banaszak Holl
- Department of Chemistry, ‡Macromolecular Science and Engineering, and §Department of Biomedical Engineering, University of Michigan , Ann Arbor, Michigan 48109, United States
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Comelli D, Artesani A, Nevin A, Mosca S, Gonzalez V, Eveno M, Valentini G. Time-Resolved Photoluminescence Microscopy for the Analysis of Semiconductor-Based Paint Layers. MATERIALS 2017; 10:ma10111335. [PMID: 29160862 PMCID: PMC5706282 DOI: 10.3390/ma10111335] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/29/2017] [Revised: 11/09/2017] [Accepted: 11/18/2017] [Indexed: 11/16/2022]
Abstract
In conservation, science semiconductors occur as the constituent matter of the so-called semiconductor pigments, produced following the Industrial Revolution and extensively used by modern painters. With recent research highlighting the occurrence of various degradation phenomena in semiconductor paints, it is clear that their detection by conventional optical fluorescence imaging and microscopy is limited by the complexity of historical painting materials. Here, we illustrate and prove the capabilities of time-resolved photoluminescence (TRPL) microscopy, equipped with both spectral and lifetime sensitivity at timescales ranging from nanoseconds to hundreds of microseconds, for the analysis of cross-sections of paint layers made of luminescent semiconductor pigments. The method is sensitive to heterogeneities within micro-samples and provides valuable information for the interpretation of the nature of the emissions in samples. A case study is presented on micro samples from a painting by Henri Matisse and serves to demonstrate how TRPL can be used to identify the semiconductor pigments zinc white and cadmium yellow, and to inform future investigations of the degradation of a cadmium yellow paint.
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Affiliation(s)
- Daniela Comelli
- Physics Department, Politecnico di Milano, Piazza Leonardo da Vinci, 20133 Milano, Italy.
| | - Alessia Artesani
- Physics Department, Politecnico di Milano, Piazza Leonardo da Vinci, 20133 Milano, Italy.
| | - Austin Nevin
- Istituto di Fotonica e Nanotecnologie-Consiglio Nazionale delle Ricerche (IFN-CNR), Piazza Leonardo da Vinci, 20133 Milano, Italy.
| | - Sara Mosca
- Physics Department, Politecnico di Milano, Piazza Leonardo da Vinci, 20133 Milano, Italy.
| | - Victor Gonzalez
- Centre de Recherche et de Restauration des Musées de France (C2RMF), Palais du Louvre, F-75001 Paris, France.
- Chimie Paris-Tech, PSL Research University, CNRS, Institut de Recherche de Chimie Paris (IRCP), F-75005 Paris, France.
| | - Myriam Eveno
- Centre de Recherche et de Restauration des Musées de France (C2RMF), Palais du Louvre, F-75001 Paris, France.
| | - Gianluca Valentini
- Physics Department, Politecnico di Milano, Piazza Leonardo da Vinci, 20133 Milano, Italy.
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Purple spot damage dynamics investigated by an integrated approach on a 1244 A.D. parchment roll from the Secret Vatican Archive. Sci Rep 2017; 7:9521. [PMID: 28883416 PMCID: PMC5589745 DOI: 10.1038/s41598-017-05398-7] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2016] [Accepted: 05/24/2017] [Indexed: 11/13/2022] Open
Abstract
Ancient parchments are commonly attacked by microbes, producing purple spots and detachment of the superficial layer. Neither standard cultivation nor molecular methods (DGGE) solved the issue: causative agents and colonization model are still unknown. To identify the putative causal agents, we describe the 16 S rRNA gene analysis (454-pyrosequencing) of the microbial communities colonizing a damaged parchment roll dated 1244 A.D. (A.A. Arm. I-XVIII 3328, Vatican Secret Archives). The taxa in damaged or undamaged areas of the same document were different. In the purple spots, marine halotolerant Gammaproteobacteria, mainly Vibrio, were found; these microorganisms are rare or absent in the undamaged areas. Ubiquitous and environmental microorganisms were observed in samples from both damaged and undamaged areas. Pseudonocardiales were the most common, representing the main colonizers of undamaged areas. We hypothesize a successional model of biodeterioration, based on metagenomic data and spectroscopic analysis of pigments, which help to relate the damage to a microbial agent. Furthermore, a new method (Light Transmitted Analysis) was utilized to evaluate the kind and entity of the damage to native collagen. These data give a significant advance to the knowledge in the field and open new perspectives to remediation activity on a huge amount of ancient document.
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Liang H, Mari M, Cheung CS, Kogou S, Johnson P, Filippidis G. Optical coherence tomography and non-linear microscopy for paintings - a study of the complementary capabilities and laser degradation effects. OPTICS EXPRESS 2017; 25:19640-19653. [PMID: 29041156 DOI: 10.1364/oe.25.019640] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/27/2017] [Accepted: 07/31/2017] [Indexed: 06/07/2023]
Abstract
This paper examines for the first time the potential complementary imaging capabilities of Optical coherence tomography (OCT) and non-linear microscopy (NLM) for multi-modal 3D examination of paintings following the successful application of OCT to the in situ, non-invasive examination of varnish and paint stratigraphy of historic paintings and the promising initial studies of NLM of varnish samples. OCT provides image contrast through the optical scattering and absorption properties of materials, while NLM provides molecular information through multi-photon fluorescence and higher harmonics generation (second and third harmonic generation). OCT is well-established in the in situ non-invasive imaging of the stratigraphy of varnish and paint layers. While NLM examination of transparent samples such as fresh varnish and some transparent paints showed promising results, the ultimate use of NLM on paintings is limited owing to the laser degradation effects caused by the high peak intensity of the laser source necessary for the generation of non-linear phenomena. The high intensity normally employed in NLM is found to be damaging to all non-transparent painting materials from slightly scattering degraded varnish to slightly absorbing paint at the wavelength of the laser excitation source. The results of this paper are potentially applicable to a wide range of materials given the diversity of the materials encountered in paintings (e.g. minerals, plants, insects, oil, egg, synthetic and natural varnish).
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Paluszkiewicz C, Piergies N, Chaniecki P, Rękas M, Miszczyk J, Kwiatek W. Differentiation of protein secondary structure in clear and opaque human lenses: AFM – IR studies. J Pharm Biomed Anal 2017; 139:125-132. [DOI: 10.1016/j.jpba.2017.03.001] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2016] [Revised: 02/20/2017] [Accepted: 03/01/2017] [Indexed: 01/08/2023]
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Dazzi A, Prater CB. AFM-IR: Technology and Applications in Nanoscale Infrared Spectroscopy and Chemical Imaging. Chem Rev 2016; 117:5146-5173. [DOI: 10.1021/acs.chemrev.6b00448] [Citation(s) in RCA: 532] [Impact Index Per Article: 66.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Affiliation(s)
- Alexandre Dazzi
- Laboratoire
de Chimie Physique, Univ. Paris-Sud, CNRS, Université Paris-Saclay, 91405 Orsay Cedex, France
| | - Craig B. Prater
- Anasys Instruments, 325 Chapala
St., Santa Barbara, California 93101, United States
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