1
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Zhang Y, Zhang T, Cai W, Owens G, Chen Z. Recovery of Y(III) from wastewater by Pseudomonas psychrotolerans isolated from a mine soil. JOURNAL OF HAZARDOUS MATERIALS 2024; 476:134973. [PMID: 38905975 DOI: 10.1016/j.jhazmat.2024.134973] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/22/2023] [Revised: 06/06/2024] [Accepted: 06/18/2024] [Indexed: 06/23/2024]
Abstract
While microbial technologies, which are considered to be environmentally friendly, have great potential for the recovery of rare earth elements (REEs) from mining wastewater, their applications have been restricted due to a lack of efficient biosorbents. In this study, a strain of Pseudomonas psychrotolerans isolated from yttrium-enriched mine soil was used to recover yttrium (Y(III)) from rare-earth mining wastewater. At an initial Y(III) dose of 50 mg L-1, the amount of Y(III) adsorbed by P. psychrotolerans reached 99.9 % after 24 h. Various characterization techniques revealed that P. psychrotolerans adsorbed Y(III) mainly through complexation of oxygen-containing functional groups and electrostatic interactions. A high level of adsorption efficiency (>99.9 %) was maintained after five consecutive adsorption/desorption cycles, indicating that P. psychrotolerans was highly reusable. While the efficiency of adsorbing Y(III) by P. psychrotolerans decreased (34.4 %) in actual rare earth mining wastewater, selectivity toward other REEs (≤ 18.4 %) was still observed. Consequently, this study provides a promising green, environmentally friendly and sustainable microbial approach for the selective recovery of REEs from rare earth wastewater.
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Affiliation(s)
- Yuyu Zhang
- Fujian Key Laboratory of Pollution Control and Resource Reuse, School of Environmental Science and Engineering, Fujian Normal University, Fuzhou 350007, Fujian, China
| | - Tao Zhang
- Fujian Key Laboratory of Pollution Control and Resource Reuse, School of Environmental Science and Engineering, Fujian Normal University, Fuzhou 350007, Fujian, China
| | - Wanling Cai
- School of Mechanical and Intelligent Manufacturing, Fujan Chuanzheng Communications College, Fuzhou 350007, Fujian, China.
| | - Gary Owens
- Environmental Contaminants Group, Future Industries Institute, University of South Australian, Mawson Lakes, SA 5095, Australia
| | - Zuliang Chen
- Fujian Key Laboratory of Pollution Control and Resource Reuse, School of Environmental Science and Engineering, Fujian Normal University, Fuzhou 350007, Fujian, China.
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2
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Volmer J, Cerajewski U, Alfes M, Bender J, Abert J, Schmidt C, Ott M, Hinderberger D. Aqueous Ionic Liquid Mixtures as Minimal Models of Lipid Bilayer Membranes. ACS Biomater Sci Eng 2024; 10:4802-4811. [PMID: 39066733 PMCID: PMC11322907 DOI: 10.1021/acsbiomaterials.4c00740] [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: 04/20/2024] [Revised: 07/18/2024] [Accepted: 07/19/2024] [Indexed: 07/30/2024]
Abstract
We introduce aqueous ionic liquid (IL) mixtures, specifically mixtures of 1-butyl-3-imidazoliumtetrafluoroborate (BMImBF4), with water as a minimal model of lipid bilayer membranes. Imidazolium-based ILs are known to form clustered nanoscale structures in which local inhomogeneities, micellar or lamellar structures, are formed to shield hydrophobic parts of the cation from the polar cosolvent (water). To investigate these nanostructures, dynamic light scattering (DLS) on samples with different mixing ratios of water and BMImBF4 was performed. At mixing ratios of 50% and 45% (v/v), small and homogeneous nanostructures can indeed be detected. To test whether, in particular, these stable nanostructures in aqueous mixtures may mimic the effects of phospholipid bilayer membranes, we further investigated their interaction with myelin basic protein (MBP), a peripheral, intrinsically disordered membrane protein of the myelin sheath. Using dynamic light scattering (DLS), continuous wave (CW) and pulse electron paramagnetic resonance (EPR), and small-angle X-ray scattering (SAXS) on recombinantly produced, "healthy" charge variants rmC1WT and double cysteine variant C1S17CH85C, we find that the size and the shape of the determined nanostructures in an optimum mixture offer model membranes in which the protein exhibits native behavior. SAXS measurements illuminate the size and shape of the nanostructures and indicate IL-rich "beads" clipped together by functional MBP, one of the in vivo roles of the protein in the myelin sheath. All the gathered data combined indicate that the 50% and 45% aqueous IL mixtures can be described as offering minimal models of a lipid mono- or bilayer that allow native processing and potential study of at least peripheral membrane proteins like MBP.
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Affiliation(s)
- Jonas Volmer
- Martin
Luther University Halle-Wittenberg, Institute of Chemistry, Physical
Chemistry − Complex Self-Organizing Systems, Von-Danckelmann-Platz 4, 06120 Halle (Saale), Germany
| | - Ulrike Cerajewski
- Martin
Luther University Halle-Wittenberg, Institute of Chemistry, Physical
Chemistry − Complex Self-Organizing Systems, Von-Danckelmann-Platz 4, 06120 Halle (Saale), Germany
| | - Marie Alfes
- Interdisciplinary
Research Centre HALOmem, Institute of Biochemistry and Biotechnology,
Charles Tanford Protein Centre, Martin Luther
University Halle-Wittenberg, Kurt-Mothes-Str. 3a, 06120 Halle, Germany
| | - Julian Bender
- Interdisciplinary
Research Centre HALOmem, Institute of Biochemistry and Biotechnology,
Charles Tanford Protein Centre, Martin Luther
University Halle-Wittenberg, Kurt-Mothes-Str. 3a, 06120 Halle, Germany
| | - Josefin Abert
- Martin
Luther University Halle-Wittenberg, Institute of Chemistry, Physical
Chemistry − Complex Self-Organizing Systems, Von-Danckelmann-Platz 4, 06120 Halle (Saale), Germany
| | - Carla Schmidt
- Interdisciplinary
Research Centre HALOmem, Institute of Biochemistry and Biotechnology,
Charles Tanford Protein Centre, Martin Luther
University Halle-Wittenberg, Kurt-Mothes-Str. 3a, 06120 Halle, Germany
- Department
of Chemistry − Biochemistry, Johannes Gutenberg University
Mainz, Biocenter II, Hanns-Dieter-Hüsch-Weg 17, 55128 Mainz, Germany
| | - Maria Ott
- Martin
Luther University Halle-Wittenberg, Institute of Biochemistry and
Biotechnology, Protein Biochemistry, Kurt-Mothes-Str. 3, 06120 Halle (Saale), Germany
| | - Dariush Hinderberger
- Martin
Luther University Halle-Wittenberg, Institute of Chemistry, Physical
Chemistry − Complex Self-Organizing Systems, Von-Danckelmann-Platz 4, 06120 Halle (Saale), Germany
- Interdisciplinary
Research Centre HALOmem, Institute of Biochemistry and Biotechnology,
Charles Tanford Protein Centre, Martin Luther
University Halle-Wittenberg, Kurt-Mothes-Str. 3a, 06120 Halle, Germany
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3
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Nagesh D, Nagarajamurthy B. Estimation of Time-Since-Deposition of bloodstains on different surfaces using ATR-FTIR Spectroscopy and Chemometrics. Forensic Sci Med Pathol 2024:10.1007/s12024-024-00849-w. [PMID: 39023692 DOI: 10.1007/s12024-024-00849-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 06/10/2024] [Indexed: 07/20/2024]
Abstract
Blood is commonly discovered at crime scenes in various forms, including stains, dried residue, pools, and fingerprints on assorted surfaces. Estimating the age of bloodstains is a crucial aspect of reconstructing crime scenes. This research aimed to investigate how the nature of different surfaces affects the estimation of bloodstain age, utilizing a reliable and non-destructive approach. The study employed ATR-FTIR spectroscopy in conjunction with Chemometric techniques such as PCA (Principal Component Analysis) and OPLSR (Orthogonal Signal Correction Partial Least Square Regression Analysis) to analyze spectral data and develop regression models for estimating bloodstain age on cement, metal, and wooden surfaces for up to eleven days. The chemometric models for bloodstains on all three substrates demonstrated strong performance, with predictive Root Mean Square Error (RMSE) values ranging from 1.1 to 1.43 and R2 values from 0.84 to 0.89. Notably, the model developed for metal surfaces was found to be the most accurate with minimal prediction error. The findings of the study showed that the porosity of the substrates upon which bloodstains were found had a discernible influence on the age-related transformations observed in bloodstains; the majority of which occured within the spectral range of 2800 cm- 1 to 3500 cm- 1.
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Affiliation(s)
- Deepthi Nagesh
- Department of Studies in Criminology and Forensic Science, Maharaja's College, University of Mysore, Mysuru, Karnataka, India.
| | - B Nagarajamurthy
- Department of Studies in Criminology and Forensic Science, Maharaja's College, University of Mysore, Mysuru, Karnataka, India
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4
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Zhang C, van de Weert M, Bjerregaard S, Rantanen J, Yang M. Leucine as a Moisture-Protective Excipient in Spray-Dried Protein/Trehalose Formulation. J Pharm Sci 2024:S0022-3549(24)00239-9. [PMID: 38944343 DOI: 10.1016/j.xphs.2024.06.018] [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: 04/12/2024] [Revised: 06/21/2024] [Accepted: 06/21/2024] [Indexed: 07/01/2024]
Abstract
The incorporation of leucine (Leu), a hydrophobic amino acid, into pharmaceutically relevant particles via spray-drying can improve the physicochemical and particulate properties, stability, and ultimately bioavailability of the final product. More specifically, Leu has been proposed to form a shell on the surface of spray-dried (SD) particles. The aim of this study was to explore the potential of Leu in the SD protein/trehalose (Tre) formulation to control the water uptake and moisture-induced recrystallization of amorphous Tre, using lysozyme (LZM) as a model protein. LZM/Tre (1:1, w/w) was dissolved in water with varied amounts of Leu (0 - 40%, w/w) and processed by spray-drying. The solid form, residual moisture content (RMC), hygroscopicity, and morphology of SD LZM/Tre/Leu powders were evaluated, before and after storage under 22°C/55% RH conditions for 90 and 180 days. The X-ray powder diffraction results showed that Leu was in crystalline form when the amount of Leu in the formulation was at least 20% (w/w). Thermo-gravimetric analysis and scanning electron microscopy results showed that 0%, 5%, and 10% (w/w) Leu formulations led to comparable RMC and raisin-like round particles. In contrast, higher Leu contents resulted in a lower RMC and increased surface corrugation of the SD particles. Dynamic vapor sorption analysis showed that partial recrystallization of amorphous Tre to crystalline Tre·dihydrate occurred in the 0% Leu formulation. However, adding as little as 5% (w/w) Leu inhibited this recrystallization during the water sorption/desorption cycle. In addition, after storage, the formulations with higher Leu contents showed reduced water uptake. Instead of observing recrystallization of amorphous Tre in 0%, 5%, and 10% (w/w) Leu formulations, recrystallization of amorphous Leu was noted in the 5% and 10% (w/w) Leu formulations after storage. In summary, our study demonstrated that the addition of Leu has the potential to reduce water uptake and inhibit moisture-induced recrystallization of amorphous Tre in the SD protein/Tre powder system.
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Affiliation(s)
- Chengqian Zhang
- Department of Pharmacy, University of Copenhagen, Copenhagen, Denmark
| | | | | | - Jukka Rantanen
- Department of Pharmacy, University of Copenhagen, Copenhagen, Denmark
| | - Mingshi Yang
- Department of Pharmacy, University of Copenhagen, Copenhagen, Denmark; Wuya College of Innovation, Shenyang Pharmaceutical University, Shenyang, China.
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5
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Mosesso N, Lerner NS, Bläske T, Groh F, Maguire S, Niedermeier ML, Landwehr E, Vogel K, Meergans K, Nagel MK, Drescher M, Stengel F, Hauser K, Isono E. Arabidopsis CaLB1 undergoes phase separation with the ESCRT protein ALIX and modulates autophagosome maturation. Nat Commun 2024; 15:5188. [PMID: 38898014 PMCID: PMC11187125 DOI: 10.1038/s41467-024-49485-6] [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: 08/15/2023] [Accepted: 06/05/2024] [Indexed: 06/21/2024] Open
Abstract
Autophagy is relevant for diverse processes in eukaryotic cells, making its regulation of fundamental importance. The formation and maturation of autophagosomes require a complex choreography of numerous factors. The endosomal sorting complex required for transport (ESCRT) is implicated in the final step of autophagosomal maturation by sealing of the phagophore membrane. ESCRT-III components were shown to mediate membrane scission by forming filaments that interact with cellular membranes. However, the molecular mechanisms underlying the recruitment of ESCRTs to non-endosomal membranes remain largely unknown. Here we focus on the ESCRT-associated protein ALG2-interacting protein X (ALIX) and identify Ca2+-dependent lipid binding protein 1 (CaLB1) as its interactor. Our findings demonstrate that CaLB1 interacts with AUTOPHAGY8 (ATG8) and PI(3)P, a phospholipid found in autophagosomal membranes. Moreover, CaLB1 and ALIX localize with ATG8 on autophagosomes upon salt treatment and assemble together into condensates. The depletion of CaLB1 impacts the maturation of salt-induced autophagosomes and leads to reduced delivery of autophagosomes to the vacuole. Here, we propose a crucial role of CaLB1 in augmenting phase separation of ALIX, facilitating the recruitment of ESCRT-III to the site of phagophore closure thereby ensuring efficient maturation of autophagosomes.
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Affiliation(s)
- Niccolò Mosesso
- Plant Physiology and Biochemistry, Department of Biology, University of Konstanz, Universitätsstraße 10, 78457, Konstanz, Germany
| | - Niharika Savant Lerner
- Plant Physiology and Biochemistry, Department of Biology, University of Konstanz, Universitätsstraße 10, 78457, Konstanz, Germany
- Konstanz Research School Chemical Biology, University of Konstanz, Universitätsstraße 10, 78457, Konstanz, Germany
| | - Tobias Bläske
- Plant Physiology and Biochemistry, Department of Biology, University of Konstanz, Universitätsstraße 10, 78457, Konstanz, Germany
| | - Felix Groh
- Plant Physiology and Biochemistry, Department of Biology, University of Konstanz, Universitätsstraße 10, 78457, Konstanz, Germany
| | - Shane Maguire
- Konstanz Research School Chemical Biology, University of Konstanz, Universitätsstraße 10, 78457, Konstanz, Germany
- Biophysical Chemistry, Department of Chemistry, University of Konstanz, Universitätsstraße 10, 78457, Konstanz, Germany
| | - Marie Laura Niedermeier
- Konstanz Research School Chemical Biology, University of Konstanz, Universitätsstraße 10, 78457, Konstanz, Germany
- Biochemistry and Mass Spectrometry, Department of Biology, University of Konstanz, Universitätsstraße 10, 78457, Konstanz, Germany
| | - Eliane Landwehr
- Konstanz Research School Chemical Biology, University of Konstanz, Universitätsstraße 10, 78457, Konstanz, Germany
- Spectroscopy of Complex Systems, Department of Chemistry, University of Konstanz, Universitätsstraße 10, 78457, Konstanz, Germany
| | - Karin Vogel
- Plant Physiology and Biochemistry, Department of Biology, University of Konstanz, Universitätsstraße 10, 78457, Konstanz, Germany
| | - Konstanze Meergans
- Plant Physiology and Biochemistry, Department of Biology, University of Konstanz, Universitätsstraße 10, 78457, Konstanz, Germany
| | - Marie-Kristin Nagel
- Plant Physiology and Biochemistry, Department of Biology, University of Konstanz, Universitätsstraße 10, 78457, Konstanz, Germany
| | - Malte Drescher
- Konstanz Research School Chemical Biology, University of Konstanz, Universitätsstraße 10, 78457, Konstanz, Germany
- Spectroscopy of Complex Systems, Department of Chemistry, University of Konstanz, Universitätsstraße 10, 78457, Konstanz, Germany
| | - Florian Stengel
- Konstanz Research School Chemical Biology, University of Konstanz, Universitätsstraße 10, 78457, Konstanz, Germany
- Biochemistry and Mass Spectrometry, Department of Biology, University of Konstanz, Universitätsstraße 10, 78457, Konstanz, Germany
| | - Karin Hauser
- Konstanz Research School Chemical Biology, University of Konstanz, Universitätsstraße 10, 78457, Konstanz, Germany
- Biophysical Chemistry, Department of Chemistry, University of Konstanz, Universitätsstraße 10, 78457, Konstanz, Germany
| | - Erika Isono
- Plant Physiology and Biochemistry, Department of Biology, University of Konstanz, Universitätsstraße 10, 78457, Konstanz, Germany.
- Konstanz Research School Chemical Biology, University of Konstanz, Universitätsstraße 10, 78457, Konstanz, Germany.
- Division of Molecular Cell Biology, National Institute for Basic Biology, Nishigonaka 38, Myodaiji, Okazaki, 444-8585 Aichi, Japan.
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6
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Krebs P, Nägele M, Fomina P, Virtanen V, Nippolainen E, Shaikh R, Afara I, Töyräs J, Usenov I, Sakharova T, Artyushenko V, Tafintseva V, Solheim J, Zimmermann B, Kohler A, König O, Saarakkala S, Mizaikoff B. Laser-irradiating infrared attenuated total reflection spectroscopy of articular cartilage: Potential and challenges for diagnosing osteoarthritis. OSTEOARTHRITIS AND CARTILAGE OPEN 2024; 6:100466. [PMID: 38623306 PMCID: PMC11016904 DOI: 10.1016/j.ocarto.2024.100466] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2023] [Accepted: 03/26/2024] [Indexed: 04/17/2024] Open
Abstract
Objective A prototype infrared attenuated total reflection (IR-ATR) laser spectroscopic system designed for in vivo classification of human cartilage tissue according to its histological health status during arthroscopic surgery is presented. Prior to real-world in vivo applications, this so-called osteoarthritis (OA) scanner has been tested at in vitro conditions revealing the challenges associated with complex sample matrices and the accordingly obtained sparse spectral datasets. Methods In vitro studies on human knee cartilage samples at different contact pressures (i.e., 0.2-0.5 MPa) allowed recording cartilage degeneration characteristic IR signatures comparable to in vivo conditions with high temporal resolution. Afterwards, the cartilage samples were assessed based on the clinically acknowledged osteoarthritis cartilage histopathology assessment (OARSI) system and correlated with the obtained sparse IR data. Results Amide and carbohydrate signal behavior was observed to be almost identical between the obtained sparse IR data and previously measured FTIR data used for sparse partial least squares discriminant analysis (SPLSDA) to identify the spectral regions relevant to cartilage condition. Contact pressures between 0.3 and 0.4 MPa seem to provide the best sparse IR spectra for cylindrical (d = 3 mm) probe tips. Conclusion Laser-irradiating IR-ATR spectroscopy is a promising analytical technique for future arthroscopic applications to differentiate healthy and osteoarthritic cartilage tissue. However, this study also revealed that the flexible connection between the laser-based analyzer and the arthroscopic ATR-probe via IR-transparent fiberoptic cables may affect the robustness of the obtained IR data and requires further improvements.
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Affiliation(s)
- P. Krebs
- Institute of Analytical and Bioanalytical Chemistry, Ulm University, Ulm, Germany
| | | | - P. Fomina
- Institute of Analytical and Bioanalytical Chemistry, Ulm University, Ulm, Germany
| | - V. Virtanen
- Research Unit of Health Sciences and Technology, Faculty of Medicine, University of Oulu, Oulu, Finland
| | - E. Nippolainen
- Department of Technical Physics, University of Eastern Finland, Kuopio, Finland
| | - R. Shaikh
- Department of Technical Physics, University of Eastern Finland, Kuopio, Finland
| | - I.O. Afara
- Department of Technical Physics, University of Eastern Finland, Kuopio, Finland
| | - J. Töyräs
- Department of Technical Physics, University of Eastern Finland, Kuopio, Finland
- Science Service Center, Kuopio University Hospital, Kuopio, Finland
- School of Electrical Engineering and Computer Science, The University of Queensland, Brisbane, Australia
| | | | | | | | - V. Tafintseva
- Faculty of Science and Technology, Norwegian University of Life Sciences, Ås, Norway
| | - J.H. Solheim
- Faculty of Science and Technology, Norwegian University of Life Sciences, Ås, Norway
| | - B. Zimmermann
- Faculty of Science and Technology, Norwegian University of Life Sciences, Ås, Norway
| | - A. Kohler
- Faculty of Science and Technology, Norwegian University of Life Sciences, Ås, Norway
| | - O. König
- Nanoplus Advanced Photonics Gerbrunn GmbH, Gerbrunn, Germany
| | - S. Saarakkala
- Research Unit of Health Sciences and Technology, Faculty of Medicine, University of Oulu, Oulu, Finland
- Department of Diagnostic Radiology, Oulu University Hospital, Oulu, Finland
| | - B. Mizaikoff
- Institute of Analytical and Bioanalytical Chemistry, Ulm University, Ulm, Germany
- Hahn-Schickard, Ulm, Germany
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7
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Rezaeerod K, Heinzmann H, Torrence AV, Patel J, Forsythe JG. Qualitative Monitoring of Proto-Peptide Condensation by Differential FTIR Spectroscopy. ACS EARTH & SPACE CHEMISTRY 2024; 8:937-944. [PMID: 38774359 PMCID: PMC11103710 DOI: 10.1021/acsearthspacechem.3c00257] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/05/2023] [Revised: 04/25/2024] [Accepted: 04/25/2024] [Indexed: 05/24/2024]
Abstract
Condensation processes such as wet-dry cycling are thought to have played significant roles in the emergence of proto-peptides. Here, we describe a simple and low-cost method, differential Fourier transform infrared (FTIR) spectroscopy, for qualitative analysis of peptide condensation products in model primordial reactions. We optimize differential FTIR for depsipeptides and apply this method to investigate their polymerization in the presence of extraterrestrial dust simulants.
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Affiliation(s)
- Keon Rezaeerod
- Department
of Chemistry and Biochemistry, College of
Charleston, Charleston, South Carolina 29424, United States
| | - Hanna Heinzmann
- Department
of Chemistry and Biochemistry, College of
Charleston, Charleston, South Carolina 29424, United States
- Analytical
and Bioanalytical Chemistry, Aalen University, 73430 Aalen, Germany
| | - Alexis V. Torrence
- Department
of Chemistry and Biochemistry, College of
Charleston, Charleston, South Carolina 29424, United States
| | - Jui Patel
- Department
of Chemistry and Biochemistry, College of
Charleston, Charleston, South Carolina 29424, United States
| | - Jay G. Forsythe
- Department
of Chemistry and Biochemistry, College of
Charleston, Charleston, South Carolina 29424, United States
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8
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Marin E, Bristol DR, Rondinella A, Lanzutti A, Riello P. Statistical approaches to Raman imaging: principal component score mapping. ANALYTICAL METHODS : ADVANCING METHODS AND APPLICATIONS 2024; 16:2707-2720. [PMID: 38629136 DOI: 10.1039/d4ay00171k] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/04/2024]
Abstract
In this research, Raman imaging was employed to map various samples, and the resulting data were analyzed using a suite of automated tools to extract critical information, including intensity and signal-to-noise ratio. The acquired spectra were further processed to identify similarities and investigate patterns using principal component analysis. The objective of this study was to establish guidelines for investigating Raman imaging results, particularly when dealing with large datasets comprising thousands of relatively low-intensity spectra. The overall quality of the results was assessed, and representative locations were determined based on the main Raman bands. While automated software solutions are insufficient for removing baselines and fitting the data, statistical analysis proved to be a powerful tool for extracting valuable information directly from the raw spectral data. This approach enables the extraction of as much information as possible from large arrays of spectral data, even in complex cases where automated software may fall short. The findings of this study contribute to enhancing the analysis and interpretation of Raman imaging results, providing researchers with a robust methodology for extracting meaningful insights from complex datasets, reducing the amount of effort required during data interpretation and analysis.
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Affiliation(s)
- Elia Marin
- Ceramic Physics Laboratory, Kyoto Institute of Technology, Sakyo-ku, Matsugasaki, 606-8585 Kyoto, Japan.
- Department of Dental Medicine, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kamigyo-ku, Kyoto 602-8566, Japan
- Department Polytechnic of Engineering and Architecture, University of Udine, 33100, Udine, Italy
- Biomedical Research Center, Kyoto Institute of Technology, Sakyo-ku, Matsugasaki, Kyoto 606-8585, Japan
| | - Davide Redolfi Bristol
- Ceramic Physics Laboratory, Kyoto Institute of Technology, Sakyo-ku, Matsugasaki, 606-8585 Kyoto, Japan.
- Department of Immunology, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kamigyo-ku, Kyoto 602-8566, Japan
- Department of Molecular Science and Nanosystems, Ca' Foscari University of Venice, Via Torino 155, 30172 Venice, Italy
| | - Alfredo Rondinella
- Department Polytechnic of Engineering and Architecture, University of Udine, 33100, Udine, Italy
| | - Alex Lanzutti
- Department Polytechnic of Engineering and Architecture, University of Udine, 33100, Udine, Italy
| | - Pietro Riello
- Department of Molecular Science and Nanosystems, Ca' Foscari University of Venice, Via Torino 155, 30172 Venice, Italy
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9
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Ramalhete L, Vieira MB, Araújo R, Vigia E, Aires I, Ferreira A, Calado CRC. Predicting Cellular Rejection of Renal Allograft Based on the Serum Proteomic Fingerprint. Int J Mol Sci 2024; 25:3844. [PMID: 38612654 PMCID: PMC11011520 DOI: 10.3390/ijms25073844] [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: 09/21/2023] [Revised: 03/14/2024] [Accepted: 03/25/2024] [Indexed: 04/14/2024] Open
Abstract
Kidney transplantation is an essential medical procedure that significantly enhances the survival rates and quality of life for patients with end-stage kidney disease. However, despite advancements in immunosuppressive therapies, allograft rejection remains a leading cause of organ loss. Notably, predictions of cellular rejection processes primarily rely on biopsy analysis, which is not routinely performed due to its invasive nature. The present work evaluates if the serum proteomic fingerprint, as acquired by Fourier Transform Infrared (FTIR) spectroscopy, can predict cellular rejection processes. We analyzed 28 serum samples, corresponding to 17 without cellular rejection processes and 11 associated with cellular rejection processes, as based on biopsy analyses. The leave-one-out-cross validation procedure of a Naïve Bayes model enabled the prediction of cellular rejection processes with high sensitivity and specificity (AUC > 0.984). The serum proteomic profile was obtained in a high-throughput mode and based on a simple, rapid, and economical procedure, making it suitable for routine analyses and large-scale studies. Consequently, the current method presents a high potential to predict cellular rejection processes translatable to clinical scenarios, and that should continue to be explored.
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Affiliation(s)
- Luís Ramalhete
- Blood and Transplantation Center of Lisbon, Instituto Português do Sangue e da Transplantação, Alameda das Linhas de Torres, n° 117, 1769-001 Lisboa, Portugal
- NOVA Medical School, Faculdade de Ciências Médicas, Universidade NOVA de Lisboa, 1169-056 Lisbon, Portugal
- iNOVA4Health—Advancing Precision Medicine, RG11: Reno-Vascular Diseases Group, NOVA Medical School, Faculdade de Ciências Médicas, Universidade NOVA de Lisboa, 1169-056 Lisbon, Portugal
| | - Miguel Bigotte Vieira
- Serviço de Nefrologia, Nova Medical School, Hospital Curry Cabral, Centro Hospitalar de Lisboa Central, 1050-099 Lisbon, Portugal
| | - Rúben Araújo
- NOVA Medical School, Faculdade de Ciências Médicas, Universidade NOVA de Lisboa, 1169-056 Lisbon, Portugal
| | - Emanuel Vigia
- NOVA Medical School, Faculdade de Ciências Médicas, Universidade NOVA de Lisboa, 1169-056 Lisbon, Portugal
- Hepatobiliopancreatic and Transplantation Center, Hospital Curry Cabral, Centro Hospitalar Universitário de Lisboa Central, 1050-099 Lisbon, Portugal
| | - Inês Aires
- Serviço de Nefrologia, Nova Medical School, Hospital Curry Cabral, Centro Hospitalar de Lisboa Central, 1050-099 Lisbon, Portugal
| | - Aníbal Ferreira
- NOVA Medical School, Faculdade de Ciências Médicas, Universidade NOVA de Lisboa, 1169-056 Lisbon, Portugal
- Serviço de Nefrologia, Nova Medical School, Hospital Curry Cabral, Centro Hospitalar de Lisboa Central, 1050-099 Lisbon, Portugal
| | - Cecília R. C. Calado
- ISEL—Instituto Superior de Engenharia de Lisboa, Instituto Politécnico de Lisboa, R. Conselheiro Emídio Navarro 1, 1959-007 Lisbon, Portugal
- Institute for Bioengineering and Biosciences (iBB), The Associate Laboratory Institute for Health and Bioeconomy (i4HB), Instituto Superior Técnico (IST), Universidade de Lisboa (UL), Av. Rovisco Pais, 1049-001 Lisbon, Portugal
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10
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Adedeji AA, Priyesh PV, Odugbemi AA. The Magnitude and Impact of Food Allergens and the Potential of AI-Based Non-Destructive Testing Methods in Their Detection and Quantification. Foods 2024; 13:994. [PMID: 38611300 PMCID: PMC11011628 DOI: 10.3390/foods13070994] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/29/2024] [Revised: 03/19/2024] [Accepted: 03/22/2024] [Indexed: 04/14/2024] Open
Abstract
Reaction to food allergens is on the increase and so is the attending cost on consumers, the food industry, and society at large. According to FDA, the "big-eight" allergens found in foods include wheat (gluten), peanuts, egg, shellfish, milk, tree nuts, fish, and soybeans. Sesame was added to the list in 2023, making the target allergen list nine instead of eight. These allergenic foods are major ingredients in many food products that can cause severe reactions in those allergic to them if found at a dose that can elicit a reaction. Defining the level of contamination that can elicit sensitivity is a work in progress. The first step in preventing an allergic reaction is reliable detection, then an effective quantification method. These are critical steps in keeping contaminated foods out of the supply chain of foods with allergen-free labels. The conventional methods of chemical assay, DNA-PCR, and enzyme protocols like enzyme-linked immunosorbent assay are effective in allergen detection but slow in providing a response. Most of these methods are incapable of quantifying the level of allergen contamination. There are emerging non-destructive methods that combine the power of sensors and machine learning to provide reliable detection and quantification. This review paper highlights some of the critical information on the types of prevalent food allergens, the mechanism of an allergic reaction in humans, the measure of allergenic sensitivity and eliciting doses, and the conventional and emerging AI-based methods of detection and quantification-the merits and downsides of each type.
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Affiliation(s)
- Akinbode A. Adedeji
- Department of Biosystems and Agricultural Engineering, University of Kentucky, Lexington, KY 40546, USA
| | - Paul V. Priyesh
- Department of Animal and Food Science, University of Kentucky, Lexington, KY 40546, USA;
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11
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van Haaren C, Byrne B, Kazarian SG. Study of Monoclonal Antibody Aggregation at the Air-Liquid Interface under Flow by ATR-FTIR Spectroscopic Imaging. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2024; 40:5858-5868. [PMID: 38445553 PMCID: PMC10956494 DOI: 10.1021/acs.langmuir.3c03730] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/01/2023] [Revised: 02/25/2024] [Accepted: 02/26/2024] [Indexed: 03/07/2024]
Abstract
Throughout bioprocessing, transportation, and storage, therapeutic monoclonal antibodies (mAbs) experience stress conditions that may cause protein unfolding and/or chemical modifications. Such structural changes may lead to the formation of aggregates, which reduce mAb potency and may cause harmful immunogenic responses in patients. Therefore, aggregates need to be detected and removed or ideally prevented from forming. Air-liquid interfaces, which arise during various stages of bioprocessing, are one of the stress factors causing mAb aggregation. In this study, the behavior of an immunoglobulin G (IgG) at the air-liquid interface was investigated under flow using macro attenuated total reflection Fourier transform infrared (ATR-FTIR) spectroscopic imaging. This chemically specific imaging technique allows observation of adsorption of IgG to the air-liquid interface and detection of associated secondary structural changes. Chemical images revealed that IgG rapidly accumulated around an injected air bubble under flow at 45 °C; however, no such increase was observed at 25 °C. Analysis of the second derivative spectra of IgG at the air-liquid interface revealed changes in the protein secondary structure associated with increased intermolecular β-sheet content, indicative of aggregated IgG. The addition of 0.01% w/v polysorbate 80 (PS80) reduced the amount of IgG at the air-liquid interface in a static setup at 30 °C; however, this protective effect was lost at 45 °C. These results suggest that the presence of air-liquid interfaces under flow may be detrimental to mAb stability at elevated temperatures and demonstrate the power of ATR-FTIR spectroscopic imaging for studying the structural integrity of mAbs under bioprocessing conditions.
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Affiliation(s)
- Céline van Haaren
- Department
of Chemical Engineering, Imperial College
London, South Kensington Campus, London SW7 2AZ, U.K.
| | - Bernadette Byrne
- Department
of Life Sciences, Imperial College London, South Kensington Campus, London SW7 2AZ, U.K.
| | - Sergei G. Kazarian
- Department
of Chemical Engineering, Imperial College
London, South Kensington Campus, London SW7 2AZ, U.K.
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12
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Grelich-Mucha M, Bachelart T, Torbeev V, Ożga K, Berlicki Ł, Olesiak-Bańska J. Amyloid engineering - how terminal capping modifies morphology and secondary structure of supramolecular peptide aggregates. Biomater Sci 2024; 12:1590-1602. [PMID: 38323504 DOI: 10.1039/d3bm01641b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2024]
Abstract
The effects of peptide N- and C-termini on aggregation behavior have been scarcely studied. Herein, we examine (105-115) peptide fragments of transthyretin (TTR) containing various functional groups at both termini and study their impact on the morphology and the secondary structure. We synthesized TTR(105-115) peptides functionalized with α-amino (H-), N-acetyl-α-amino (Ac-) or N,N-dimethyl-α-amino (DiMe-) groups at the N-terminus, and with amide (-NH2) or carboxyl (-OH) functions at the C-terminus. We also investigated quasi-racemic mixtures by mixing the L-enantiomers with the D-enantiomer capped by H- and -NH2 groups. We observed that fibril formation is promoted by the sufficient number of hydrogen bonds at peptides' termini. Moreover, the final morphology of the aggregates can be controlled by the functional groups at the N-terminus. Remarkably, all quasi-racemic mixtures resulted in the robust formation of fibrils. Overall, this work illustrates how modifications of peptide termini may help to engineer supramolecular aggregates with a predicted morphology.
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Affiliation(s)
- Manuela Grelich-Mucha
- Institute of Advanced Materials, Wroclaw University of Science and Technology, Wybrzeze Wyspianskiego 27, 50-370 Wroclaw, Poland.
| | - Thomas Bachelart
- École Supérieure de Biotechnologie de Strasbourg (ESBS), CNRS UMR 7242 Biotechnology and Cellular Signalling, University of Strasbourg, 67400 Illkirch, France
| | - Vladimir Torbeev
- École Supérieure de Biotechnologie de Strasbourg (ESBS), CNRS UMR 7242 Biotechnology and Cellular Signalling, University of Strasbourg, 67400 Illkirch, France
| | - Katarzyna Ożga
- Department of Bioorganic Chemistry, Faculty of Chemistry, Wroclaw University of Science and Technology, Wybrzeze Wyspianskiego 27, 50-370 Wroclaw, Poland
| | - Łukasz Berlicki
- Department of Bioorganic Chemistry, Faculty of Chemistry, Wroclaw University of Science and Technology, Wybrzeze Wyspianskiego 27, 50-370 Wroclaw, Poland
| | - Joanna Olesiak-Bańska
- Institute of Advanced Materials, Wroclaw University of Science and Technology, Wybrzeze Wyspianskiego 27, 50-370 Wroclaw, Poland.
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13
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Di Santo R, Niccolini B, Romanò S, Vaccaro M, Di Giacinto F, De Spirito M, Ciasca G. Advancements in Mid-Infrared spectroscopy of extracellular vesicles. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2024; 305:123346. [PMID: 37774583 DOI: 10.1016/j.saa.2023.123346] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/09/2023] [Revised: 08/07/2023] [Accepted: 09/02/2023] [Indexed: 10/01/2023]
Abstract
Extracellular vesicles (EVs) are lipid vesicles secreted by all cells into the extracellular space and act as nanosized biological messengers among cells. They carry a specific molecular cargo, composed of lipids, proteins, nucleic acids, and carbohydrates, which reflects the state of their parent cells. Due to their remarkable structural and compositional heterogeneity, characterizing EVs, particularly from a biochemical perspective, presents complex challenges. In this context, mid-infrared (IR) spectroscopy is emerging as a valuable tool, providing researchers with a comprehensive and label-free spectral fingerprint of EVs in terms of their specific molecular content. This review aims to provide an up-to-date critical overview of the major advancements in mid-IR spectroscopy of extracellular vesicles, encompassing both fundamental and applied research achievements. We also systematically emphasize the new possibilities offered by the integration of emerging cutting-edge IR technologies, such as tip-enhanced and surface-enhanced spectroscopy approaches, along with the growing use of machine learning for data analysis and spectral interpretation. Additionally, to assist researchers in navigating this intricate subject, our manuscript includes a wide and detailed collection of the spectral peaks that have been assigned to EV molecular constituents up to now in the literature.
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Affiliation(s)
- Riccardo Di Santo
- Dipartimento di Neuroscienze, Sezione di Fisica, Università Cattolica del Sacro Cuore, 00168 Rome, Italy; Fondazione Policlinico Universitario "A. Gemelli" IRCCS, 00168 Rome, Italy.
| | - Benedetta Niccolini
- Dipartimento di Neuroscienze, Sezione di Fisica, Università Cattolica del Sacro Cuore, 00168 Rome, Italy
| | - Sabrina Romanò
- Dipartimento di Neuroscienze, Sezione di Fisica, Università Cattolica del Sacro Cuore, 00168 Rome, Italy
| | - Maria Vaccaro
- Fondazione Policlinico Universitario "A. Gemelli" IRCCS, 00168 Rome, Italy
| | - Flavio Di Giacinto
- Dipartimento di Neuroscienze, Sezione di Fisica, Università Cattolica del Sacro Cuore, 00168 Rome, Italy; Fondazione Policlinico Universitario "A. Gemelli" IRCCS, 00168 Rome, Italy
| | - Marco De Spirito
- Dipartimento di Neuroscienze, Sezione di Fisica, Università Cattolica del Sacro Cuore, 00168 Rome, Italy; Fondazione Policlinico Universitario "A. Gemelli" IRCCS, 00168 Rome, Italy
| | - Gabriele Ciasca
- Dipartimento di Neuroscienze, Sezione di Fisica, Università Cattolica del Sacro Cuore, 00168 Rome, Italy; Fondazione Policlinico Universitario "A. Gemelli" IRCCS, 00168 Rome, Italy
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14
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Sharma G, Chadha P. Evaluation of haematological, genotoxic, cytotoxic and ATR-FTIR alterations in blood cells of fish Channa punctatus after acute exposure of aniline. Sci Rep 2023; 13:20757. [PMID: 38007596 PMCID: PMC10676417 DOI: 10.1038/s41598-023-48151-z] [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] [Received: 07/23/2023] [Accepted: 11/22/2023] [Indexed: 11/27/2023] Open
Abstract
Aniline (C6H5NH2) an important intermediate in the organic and fine chemical industry, is ubiquitously used worldwide. It is one of the important building block for manufacturing of 4,4-methylene diphenyl diisocyanate (MDI), accelerators in rubber processing, dyes, tattoo inks, photographic chemicals, antioxidants, corrosion inhibitors, pharmaceuticals and antiseptics. The current study evaluated 96 h LC50 of aniline and based on this, two sublethal concentrations (4.19 mg/l and 8.39 mg/l) were selected for acute exposure studies in freshwater food fish Channa punctatus. Erythrocytes of fish are nucleated hence they play an important role in physiology, immune system, protein signalling and haemostatic condition along with respiration. Blood samples were collected after 24, 48, 72, and 96 h of exposure to study haematological, cytotoxic and genotoxic effects of sublethal concentrations of aniline in C. punctatus. Symbolic elevation in time and dose dependent DNA damage was observed by comet assay as well as micronuclei assay revealing maximum damage after 96 h of exposure. After aniline exposure, scanning electron microscopy and ATR-FTIR studies showed anomalies in structure and alterations in biomolecules of RBCs of aniline exposed group as compared to control group respectively. Semi prep HPLC studies revealed bioaccumulation potential of aniline in higher concentration exposed group.
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Affiliation(s)
- Geetika Sharma
- Cytogenetics Lab, Department of Zoology, Guru Nanak Dev University, Amritsar, 143005, India
| | - Pooja Chadha
- Cytogenetics Lab, Department of Zoology, Guru Nanak Dev University, Amritsar, 143005, India.
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15
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Kassem A, Abbas L, Coutinho O, Opara S, Najaf H, Kasperek D, Pokhrel K, Li X, Tiquia-Arashiro S. Applications of Fourier Transform-Infrared spectroscopy in microbial cell biology and environmental microbiology: advances, challenges, and future perspectives. Front Microbiol 2023; 14:1304081. [PMID: 38075889 PMCID: PMC10703385 DOI: 10.3389/fmicb.2023.1304081] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2023] [Accepted: 11/03/2023] [Indexed: 01/02/2024] Open
Abstract
Microorganisms play pivotal roles in shaping ecosystems and biogeochemical cycles. Their intricate interactions involve complex biochemical processes. Fourier Transform-Infrared (FT-IR) spectroscopy is a powerful tool for monitoring these interactions, revealing microorganism composition and responses to the environment. This review explores the diversity of applications of FT-IR spectroscopy within the field of microbiology, highlighting its specific utility in microbial cell biology and environmental microbiology. It emphasizes key applications such as microbial identification, process monitoring, cell wall analysis, biofilm examination, stress response assessment, and environmental interaction investigation, showcasing the crucial role of FT-IR in advancing our understanding of microbial systems. Furthermore, we address challenges including sample complexity, data interpretation nuances, and the need for integration with complementary techniques. Future prospects for FT-IR in environmental microbiology include a wide range of transformative applications and advancements. These include the development of comprehensive and standardized FT-IR libraries for precise microbial identification, the integration of advanced analytical techniques, the adoption of high-throughput and single-cell analysis, real-time environmental monitoring using portable FT-IR systems and the incorporation of FT-IR data into ecological modeling for predictive insights into microbial responses to environmental changes. These innovative avenues promise to significantly advance our understanding of microorganisms and their complex interactions within various ecosystems.
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Affiliation(s)
- Amin Kassem
- Department of Natural Sciences, University of Michigan-Dearborn, Dearborn, MI, United States
| | - Lana Abbas
- Department of Natural Sciences, University of Michigan-Dearborn, Dearborn, MI, United States
| | - Oliver Coutinho
- Department of Natural Sciences, University of Michigan-Dearborn, Dearborn, MI, United States
| | - Somie Opara
- Department of Natural Sciences, University of Michigan-Dearborn, Dearborn, MI, United States
| | - Hawraa Najaf
- Department of Natural Sciences, University of Michigan-Dearborn, Dearborn, MI, United States
| | - Diana Kasperek
- Department of Natural Sciences, University of Michigan-Dearborn, Dearborn, MI, United States
| | - Keshav Pokhrel
- Department of Mathematics and Statistics, University of Michigan-Dearborn, Dearborn, MI, United States
| | - Xiaohua Li
- Department of Natural Sciences, University of Michigan-Dearborn, Dearborn, MI, United States
| | - Sonia Tiquia-Arashiro
- Department of Natural Sciences, University of Michigan-Dearborn, Dearborn, MI, United States
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16
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Kobashigawa JM, Robles CA, Gaiser RF, Schinca DC, Scaffardi LB, Carmarán CC. Mycosynthesis of silver nanoparticles using psychrotrophic strains of Tulasnella albida Bourdot & Galzin from the South Orkney Islands (Antarctica). Rev Argent Microbiol 2023; 55:307-316. [PMID: 37344239 DOI: 10.1016/j.ram.2023.04.004] [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] [Received: 08/17/2022] [Revised: 12/09/2022] [Accepted: 04/27/2023] [Indexed: 06/23/2023] Open
Abstract
This study is the first report on mycosynthesis of silver nanoparticles (NPs) using psychrotrophic Antarctic filamentous fungi, and the first report regarding Tulasnella (Basidiomycota). In this work, the ability to synthesize silver NPs from cell free filtrates of strains of Tulasnella albida isolated from Antarctica was assessed. All fungal filtrates were capable of synthesizing silver NPs with the addition of AgNO3. UV-vis spectroscopy, TEM and SEM microscopy analyses were performed to characterize the synthesized NPs. ATR-FTIR and Micro Raman spectroscopy analyses were conducted to find functional groups responsible for the reduction of AgNO3 and to detect the presence of silver oxide on the AgNPs. Theoretical calculations of optical absorption based on core-shell Ag-Ag2O were used to characterize the experimental absorption spectra of silver NPs colloids. Spherically shaped silver NPs, typically 2-3nm in diameter, were obtained. The largest ones showed a capping shell around them, which could be associated with the formation of small silver NPs. Functional groups corresponding to amides and alcohols were detected, confirming the presence of proteins as possible intermediates in the synthesis of AgNPs. On the other hand, the Micro Raman analysis confirms the presence of silver oxide on the surface of the AgNPs. This work presents a simple procedure for the synthesis of silver NPs using a psychrotrophic organism that could be interesting for the industry.
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Affiliation(s)
- Jesica M Kobashigawa
- University of Buenos Aires, Faculty of Exact and Natural Sciences, DBBE Buenos Aires, Argentina; CONICET, Institute of Mycology and Botany (INMIBO), Buenos Aires, Argentina
| | - Carolina A Robles
- University of Buenos Aires, Faculty of Exact and Natural Sciences, DBBE Buenos Aires, Argentina; CONICET, Institute of Mycology and Botany (INMIBO), Buenos Aires, Argentina
| | - Rocío F Gaiser
- University of Buenos Aires, Faculty of Exact and Natural Sciences, DBBE Buenos Aires, Argentina
| | - Daniel C Schinca
- Optical Research Center (CIOp) (CONICET - CIC - UNLP), Gonnet, La Plata, Argentina; National University of La Plata, Faculty of Engineering, La Plata, Buenos Aires, Argentina
| | - Lucía B Scaffardi
- Optical Research Center (CIOp) (CONICET - CIC - UNLP), Gonnet, La Plata, Argentina.
| | - Cecilia C Carmarán
- University of Buenos Aires, Faculty of Exact and Natural Sciences, DBBE Buenos Aires, Argentina; CONICET, Institute of Mycology and Botany (INMIBO), Buenos Aires, Argentina.
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17
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Aline U, Bhattacharya T, Faqeerzada MA, Kim MS, Baek I, Cho BK. Advancement of non-destructive spectral measurements for the quality of major tropical fruits and vegetables: a review. FRONTIERS IN PLANT SCIENCE 2023; 14:1240361. [PMID: 37662162 PMCID: PMC10471194 DOI: 10.3389/fpls.2023.1240361] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/14/2023] [Accepted: 07/27/2023] [Indexed: 09/05/2023]
Abstract
The quality of tropical fruits and vegetables and the expanding global interest in eating healthy foods have resulted in the continual development of reliable, quick, and cost-effective quality assurance methods. The present review discusses the advancement of non-destructive spectral measurements for evaluating the quality of major tropical fruits and vegetables. Fourier transform infrared (FTIR), Near-infrared (NIR), Raman spectroscopy, and hyperspectral imaging (HSI) were used to monitor the external and internal parameters of papaya, pineapple, avocado, mango, and banana. The ability of HSI to detect both spectral and spatial dimensions proved its efficiency in measuring external qualities such as grading 516 bananas, and defects in 10 mangoes and 10 avocados with 98.45%, 97.95%, and 99.9%, respectively. All of the techniques effectively assessed internal characteristics such as total soluble solids (TSS), soluble solid content (SSC), and moisture content (MC), with the exception of NIR, which was found to have limited penetration depth for fruits and vegetables with thick rinds or skins, including avocado, pineapple, and banana. The appropriate selection of NIR optical geometry and wavelength range can help to improve the prediction accuracy of these crops. The advancement of spectral measurements combined with machine learning and deep learning technologies have increased the efficiency of estimating the six maturity stages of papaya fruit, from the unripe to the overripe stages, with F1 scores of up to 0.90 by feature concatenation of data developed by HSI and visible light. The presented findings in the technological advancements of non-destructive spectral measurements offer promising quality assurance for tropical fruits and vegetables.
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Affiliation(s)
- Umuhoza Aline
- Department of Agricultural Machinery Engineering, Chungnam National University, Daejeon, Republic of Korea
| | - Tanima Bhattacharya
- Department of Agricultural Machinery Engineering, Chungnam National University, Daejeon, Republic of Korea
| | | | - Moon S. Kim
- Environmental Microbial and Food Safety Laboratory, Agricultural Research Service, United States Department of Agriculture, Beltsville, MD, United States
| | - Insuck Baek
- Environmental Microbial and Food Safety Laboratory, Agricultural Research Service, United States Department of Agriculture, Beltsville, MD, United States
| | - Byoung-Kwan Cho
- Department of Agricultural Machinery Engineering, Chungnam National University, Daejeon, Republic of Korea
- Department of Smart Agricultural Systems, Chungnam National University, Daejeon, Republic of Korea
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18
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Rosa Silva LK, Cardim de Jesus J, Vieira Onelli RR, Conceição DG, Santos LS, Barbosa Ferrão SP. Spectroscopy (MIR), chromatography (RP-HPLC) and chemometrics applied to soluble peptides to discriminate the geographic origin of coalho cheese. BIOCATALYSIS AND AGRICULTURAL BIOTECHNOLOGY 2023. [DOI: 10.1016/j.bcab.2023.102678] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/03/2023]
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19
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Torres-Sánchez E, Hernández-Ledesma B, Gutiérrez LF. Isolation and Characterization of Protein Fractions for Valorization of Sacha Inchi Oil Press-Cake. Foods 2023; 12:2401. [PMID: 37372612 DOI: 10.3390/foods12122401] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2023] [Revised: 06/01/2023] [Accepted: 06/15/2023] [Indexed: 06/29/2023] Open
Abstract
The growing interest in plant-based food protein sources has provided opportunities for the valorization of agri-food by-products, driving the food industry towards more sustainable development. In this study, three extraction procedures (varying the pH value (7.0 and 11.0) and the addition of salt (0 and 5%)) were investigated to obtain seven different protein fractions (SIPF) from Sacha Inchi oil press-cake (SIPC), which were characterized in terms of their protein content, electrophoretic profile, secondary structure, and techno-functional properties. Extractions at pH 11.0 without salt addition produced the highest values of protein content, extraction yield, protein recovery, and protein concentration increase (84.0%, 24.7%, 36.5%, and 1.5-fold, respectively). Under these extraction conditions, the electrophoretic analysis indicated that most of the SIPC proteins were extracted. SIPF displayed an excellent oil absorption capacity (4.3-9.0 w/w), and interesting foam activity (36.4-133.3%). The solubility and emulsifying activity of the albumin fractions were significantly higher than those of the other fractions (~87 vs. <15.8%, and 280-370 vs. <140 m2/g, respectively). Correlation analysis showed that the secondary structure of the SIPF significantly influences their techno-functional properties. These results indicate that SIPC is a by-product of great potential for protein extraction processes, and as a valorization strategy for technical cycle solutions for the Sacha Inchi productive chain in the circular economy context.
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Affiliation(s)
- Erwin Torres-Sánchez
- Facultad de Ciencias Agrarias, Universidad Nacional de Colombia, Carrera 30 No. 45-03, Bogotá 111321, Colombia
| | - Blanca Hernández-Ledesma
- Instituto de Investigación en Ciencias de la Alimentación (CIAL, CSIC-UAM, CEI-UAM+CSIC), Nicolás Cabrera 9, 28049 Madrid, Spain
| | - Luis-Felipe Gutiérrez
- Instituto de Ciencia y Tecnología de Alimentos, Universidad Nacional de Colombia, Carrera 30 No. 45-03 Edificio 500A, Bogotá 111321, Colombia
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20
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van Haaren C, De Bock M, Kazarian SG. Advances in ATR-FTIR Spectroscopic Imaging for the Analysis of Tablet Dissolution and Drug Release. Molecules 2023; 28:4705. [PMID: 37375260 DOI: 10.3390/molecules28124705] [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: 04/28/2023] [Revised: 06/06/2023] [Accepted: 06/09/2023] [Indexed: 06/29/2023] Open
Abstract
One of the major challenges in the development of effective pharmaceutical formulations for oral administration is the poor solubility of active pharmaceutical ingredients. For this reason, the dissolution process and drug release from solid oral dosage forms, such as tablets, is usually thoroughly studied in order to understand the dissolution behaviour under various conditions and optimize the formulation accordingly. Standard dissolution tests used in the pharmaceutical industry provide information on the amount of drug released over time; however, these do not allow for a detailed analysis of the underlying chemical and physical mechanisms of tablet dissolution. FTIR spectroscopic imaging, by contrast, does offer the ability to study these processes with high spatial and chemical specificity. As such, the method allows us to see the chemical and physical processes which occur inside the tablet as it dissolves. In this review, the power of ATR-FTIR spectroscopic imaging is demonstrated by presenting a number of successful applications of this chemical imaging technique to dissolution and drug release studies for a range of different pharmaceutical formulations and study conditions. Understanding these processes is essential for the development of effective oral dosage forms and optimization of pharmaceutical formulations.
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Affiliation(s)
- Céline van Haaren
- Department of Chemical Engineering, Imperial College London, London SW7 2AZ, UK
| | - Marieke De Bock
- Department of Chemical Engineering, Imperial College London, London SW7 2AZ, UK
| | - Sergei G Kazarian
- Department of Chemical Engineering, Imperial College London, London SW7 2AZ, UK
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21
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Zhang S, Qi Y, Tan SPH, Bi R, Olivo M. Molecular Fingerprint Detection Using Raman and Infrared Spectroscopy Technologies for Cancer Detection: A Progress Review. BIOSENSORS 2023; 13:bios13050557. [PMID: 37232918 DOI: 10.3390/bios13050557] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/16/2023] [Revised: 05/12/2023] [Accepted: 05/16/2023] [Indexed: 05/27/2023]
Abstract
Molecular vibrations play a crucial role in physical chemistry and biochemistry, and Raman and infrared spectroscopy are the two most used techniques for vibrational spectroscopy. These techniques provide unique fingerprints of the molecules in a sample, which can be used to identify the chemical bonds, functional groups, and structures of the molecules. In this review article, recent research and development activities for molecular fingerprint detection using Raman and infrared spectroscopy are discussed, with a focus on identifying specific biomolecules and studying the chemical composition of biological samples for cancer diagnosis applications. The working principle and instrumentation of each technique are also discussed for a better understanding of the analytical versatility of vibrational spectroscopy. Raman spectroscopy is an invaluable tool for studying molecules and their interactions, and its use is likely to continue to grow in the future. Research has demonstrated that Raman spectroscopy is capable of accurately diagnosing various types of cancer, making it a valuable alternative to traditional diagnostic methods such as endoscopy. Infrared spectroscopy can provide complementary information to Raman spectroscopy and detect a wide range of biomolecules at low concentrations, even in complex biological samples. The article concludes with a comparison of the techniques and insights into future directions.
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Affiliation(s)
- Shuyan Zhang
- Institute of Materials Research and Engineering (IMRE), Agency for Science, Technology and Research (A*STAR), 31 Biopolis Way, Nanos #07-01, Singapore 138634, Singapore
| | - Yi Qi
- Institute of Materials Research and Engineering (IMRE), Agency for Science, Technology and Research (A*STAR), 31 Biopolis Way, Nanos #07-01, Singapore 138634, Singapore
| | - Sonia Peng Hwee Tan
- Department of Biomedical Engineering, National University of Singapore (NUS), 4 Engineering Drive 3 Block 4, #04-08, Singapore 117583, Singapore
| | - Renzhe Bi
- Institute of Materials Research and Engineering (IMRE), Agency for Science, Technology and Research (A*STAR), 31 Biopolis Way, Nanos #07-01, Singapore 138634, Singapore
| | - Malini Olivo
- Institute of Materials Research and Engineering (IMRE), Agency for Science, Technology and Research (A*STAR), 31 Biopolis Way, Nanos #07-01, Singapore 138634, Singapore
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22
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Javier-Astete R, Melo J, Jimenez-Davalos J, Zolla G. Classification of Amazonian fast-growing tree species and wood chemical determination by FTIR and multivariate analysis (PLS-DA, PLS). Sci Rep 2023; 13:7827. [PMID: 37188729 DOI: 10.1038/s41598-023-35107-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2023] [Accepted: 05/12/2023] [Indexed: 05/17/2023] Open
Abstract
Fast-growing trees like Capirona, Bolaina, and Pashaco have the potential to reduce forest degradation because of their ecological features, the economic importance in the Amazon Forest, and an industry based on wood-polymer composites. Therefore, a practical method to discriminate specie (to avoid illegal logging) and determine chemical composition (tree breeding programs) is needed. This study aimed to validate a model for the classification of wood species and a universal model for the rapid determination of cellulose, hemicellulose, and lignin using FTIR spectroscopy coupled with chemometrics. Our results showed that PLS-DA models for the classification of wood species (0.84 ≤ R2 ≤ 0.91, 0.12 ≤ RMSEP ≤ 0.20, accuracy, specificity, and sensibility between 95.2 and 100%) were satisfied with the full spectra and the differentiation among these species based on IR peaks related to cellulose, lignin, and hemicellulose. Besides, the full spectra helped build a three-species universal PLS model to quantify the principal wood chemical components. Lignin (RPD = 2.27, [Formula: see text] = 0.84) and hemicellulose (RPD = 2.46, [Formula: see text] = 0.83) models showed a good prediction, while cellulose model (RPD = 3.43, [Formula: see text] = 0.91) classified as efficient. This study showed that FTIR-ATR, together with chemometrics, is a reliable method to discriminate wood species and to determine the wood chemical composition in juvenile trees of Pashaco, Capirona, and Bolaina.
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Affiliation(s)
- Rosario Javier-Astete
- Laboratorio de Fisiologia Molecular de Plantas del PIPS de Cereales y Granos Nativos, Facultad de Agronomia, Universidad Nacional Agraria La Molina, Lima, Peru
| | - Jessenia Melo
- Laboratorio de Evaluación Nutricional de Alimentos, Universidad Nacional Agraria La Molina, Lima, Peru
| | - Jorge Jimenez-Davalos
- Grupo de Investigacion en Mutaciones & Biotecnologia Vegetal, Facultad de Agronomia, Universidad Nacional Agraria La Molina, Lima, Peru
| | - Gastón Zolla
- Laboratorio de Fisiologia Molecular de Plantas del PIPS de Cereales y Granos Nativos, Facultad de Agronomia, Universidad Nacional Agraria La Molina, Lima, Peru.
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Lu T, Chen Z. Monitoring the Molecular Structure of Fibrinogen during the Adsorption Process at the Buried Silicone Oil Interface In Situ in Real Time. J Phys Chem Lett 2023; 14:3139-3145. [PMID: 36961304 DOI: 10.1021/acs.jpclett.3c00331] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/18/2023]
Abstract
Interfacial proteins play important roles in many research fields and applications, such as biosensors, biomedical implants, nonfouling coatings, etc. Directly probing interfacial protein behavior at buried solid/liquid and liquid/liquid interfaces is challenging. We used sum frequency generation vibrational spectroscopy and a Hamiltonian data analysis method to monitor the molecular structure of fibrinogen on silicone oil during the adsorption process in situ in real time. The results showed that the adsorbed fibrinogen molecules tend to adopt a bent structure throughout the entire adsorption process with the same orientation. This is different from the case of adsorbed fibrinogen on CaF2 with a linear structure or on polystyrene with a bent structure but a different orientation. The method introduced herein is generally applicable for following time-dependent molecular structures of many other proteins and peptides at interfaces in situ in real time at the molecular level.
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Affiliation(s)
- Tieyi Lu
- Department of Chemistry, University of Michigan, 930 North University Avenue, Ann Arbor, Michigan 48109, United States
| | - Zhan Chen
- Department of Chemistry, University of Michigan, 930 North University Avenue, Ann Arbor, Michigan 48109, United States
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24
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Yan X, Zeng Z, McClements DJ, Gong X, Yu P, Xia J, Gong D. A review of the structure, function, and application of plant-based protein-phenolic conjugates and complexes. Compr Rev Food Sci Food Saf 2023; 22:1312-1336. [PMID: 36789802 DOI: 10.1111/1541-4337.13112] [Citation(s) in RCA: 9] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2022] [Revised: 01/10/2023] [Accepted: 01/14/2023] [Indexed: 02/16/2023]
Abstract
Interactions between plant-based proteins (PP) and phenolic compounds (PC) occur naturally in many food products. Recently, special attention has been paid to the fabrication of PP-PC conjugates or complexes in model systems with a focus on their effects on their structure, functionality, and health benefits. Conjugates are held together by covalent bonds, whereas complexes are held together by noncovalent ones. This review highlights the nature of protein-phenolic interactions involving PP. The interactions of these PC with the PP in model systems are discussed, as well as their impact on the structural, functional, and health-promoting properties of PP. The PP in conjugates and complexes tend to be more unfolded than in their native state, which often improves their functional attributes. PP-PC conjugates and complexes often exhibit improved in vitro digestibility, antioxidant activity, and potential allergy-reducing activities. Consequently, they may be used as antioxidant emulsifiers, edible film additives, nanoparticles, and hydrogels in the food industry. However, studies focusing on the application of PP-PC conjugates and complexes in real foods are still scarce. Further research is therefore required to determine the structure-function relationships of PP-PC conjugates and complexes that may influence their application as functional ingredients in the food industry.
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Affiliation(s)
- Xianghui Yan
- State Key Laboratory of Food Science and Technology, Nanchang University, Nanchang, China
- Jiangxi Province Key Laboratory of Edible and Medicinal Resources Exploitation, Nanchang University, Nanchang, China
- School of Resources & Environment, Nanchang University, Nanchang, China
| | - Zheling Zeng
- State Key Laboratory of Food Science and Technology, Nanchang University, Nanchang, China
- Jiangxi Province Key Laboratory of Edible and Medicinal Resources Exploitation, Nanchang University, Nanchang, China
- School of Chemistry and Chemical Engineering, Nanchang University, Nanchang, China
| | | | - Xiaofeng Gong
- School of Resources & Environment, Nanchang University, Nanchang, China
| | - Ping Yu
- State Key Laboratory of Food Science and Technology, Nanchang University, Nanchang, China
- Jiangxi Province Key Laboratory of Edible and Medicinal Resources Exploitation, Nanchang University, Nanchang, China
- School of Chemistry and Chemical Engineering, Nanchang University, Nanchang, China
| | - Jiaheng Xia
- State Key Laboratory of Food Science and Technology, Nanchang University, Nanchang, China
- Jiangxi Province Key Laboratory of Edible and Medicinal Resources Exploitation, Nanchang University, Nanchang, China
- School of Chemistry and Chemical Engineering, Nanchang University, Nanchang, China
| | - Deming Gong
- State Key Laboratory of Food Science and Technology, Nanchang University, Nanchang, China
- Jiangxi Province Key Laboratory of Edible and Medicinal Resources Exploitation, Nanchang University, Nanchang, China
- New Zealand Institute of Natural Medicine Research, Auckland, New Zealand
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25
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Meira ACFDO, Morais LCD, Figueiredo JDA, Veríssimo LAA, Botrel DA, Resende JVD. Microencapsulation of β-carotene using barley residue proteins from beer waste as coating material. J Microencapsul 2023; 40:171-185. [PMID: 36803148 DOI: 10.1080/02652048.2023.2183277] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/22/2023]
Abstract
This study aimed to produce and characterise microparticles produced from barley residue proteins (BRP) enriched with β-carotene. The microparticles were obtained by freeze-drying five emulsion formulations with 0.5% w/w whey protein concentrate and different concentrations of maltodextrin and BRP (0, 1.5, 3.0, 4.5 and 6.0% w/w), with the dispersed phase consisting of corn oil enriched with β-carotene. The mixtures were mechanically mixed and sonicated, the formed emulsions were freeze-drying. The microparticles obtained were tested for encapsulation efficiency, humidity, hygroscopicity, apparent density, scanning electron microscopy (SEM), accelerated stability and bioaccessibility. Microparticles produced with the emulsion containing 6% w/w BRP had lower moisture content (3.47 ± 0.05%), higher encapsulation efficiency (69.11 ± 3.36%), bioaccessibility value of 84.1% and greater β-carotene protection against thermal degradation. SEM analysis showed that microparticles had sizes ranging from 74.4 to 244.8 µm. These results show that BRP are viable for the microencapsulation of bioactive compounds by freeze-drying.
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26
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Zhang X, Sun Z, Zeng Q, Jin H, Wang S, Jin Y, Hu Y, Cai Z. Utilization of ovalbumin-propylene glycol alginate complex system for superior foam: The effect of pH-driven phase behavior. Food Hydrocoll 2023. [DOI: 10.1016/j.foodhyd.2022.108169] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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27
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Moreira TCP, Cunha RLD. Ultrasonic process affecting interactions between sodium caseinate and whey proteins. Food Res Int 2023; 164:112356. [PMID: 36737944 DOI: 10.1016/j.foodres.2022.112356] [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: 07/19/2022] [Revised: 12/19/2022] [Accepted: 12/23/2022] [Indexed: 12/26/2022]
Abstract
Ultrasound has been widely explored for several applications, such as emulsification or structural modification of food materials such as proteins. In this work, the effect of ultrasound on the control of whey proteins (WPI) aggregation was evaluated in the presence of sodium caseinate (NaCas). Solutions of NaCas, WPI and both (1:1) were treated with ultrasound under different power and time conditions and were initially evaluated in terms of particle size distribution, charge density, pH and polyacrylamide gel electrophoresis. Three pairs of conditions were adopted to provide the same energy density - A1 (450 W / 300 s, 6750 MJ/m3), A2 (150 W / 900 s, 6750 MJ/m3), A3 (600 W / 300 s, 900 MJ/m3), A4 (202.5 W / 900 s, 9112.5 MJ/m3), A5 (742.5 W / 300 s, 11137.5 MJ/m3) and A6 (247.5 W / 900 s, 11137.5 MJ/m3). Best conditions of transmitted energy - A1, A3 and A5 - were studied for surface hydrophobicity, circular dichroism and infrared spectroscopy. The decrease of surface hydrophobicity of NaCas:WPI mixtures pointed to a protective effect of NaCas against WPI denaturation, confirmed by the presence of more ordered structures by FTIR analysis that were not observed in the absence of NaCas. Finally, the effect of these structural changes on the gelation capacity of the ultrasound-treated proteins was assessed. Ultrasound was able to reduce the stress at rupture from 1988.59 Pa (control) to 1655.31 Pa (A3) and 1871.24 Pa (A5), and more markedly increase the Young modulus from 113.69 kPa (control) to 243.30 kPa (A3) and 392.44 kPa (A5). This study identified that higher power values with shorter times were able to provide greater protein changes that affected gelation properties, showing that the modulation of ultrasound conditions can produce ingredients with different techno-functional properties.
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Affiliation(s)
- Thais Caldas Paiva Moreira
- Department of Food Engineering and Technology (DETA), School of Food Engineering, University of Campinas (UNICAMP), Rua Monteiro Lobato, 80, Campinas-SP, CEP 13083-862, Brazil.
| | - Rosiane Lopes da Cunha
- Department of Food Engineering and Technology (DETA), School of Food Engineering, University of Campinas (UNICAMP), Rua Monteiro Lobato, 80, Campinas-SP, CEP 13083-862, Brazil
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Sharma N, Sahu JK, Choudhary A, Meenu M, Bansal V. High intensity ultrasound (HIU)-induced functionalization of foxtail millet protein and its fractions. Food Hydrocoll 2023. [DOI: 10.1016/j.foodhyd.2022.108083] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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29
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Thomas B, Anderson K, De Silva I, Verbeck G, Taylor S. Attenuated Total Reflection Fourier Transform Infrared (ATR FT-IR) Spectroscopy Sensitivity to the Thermal Decay of Bone Collagen. APPLIED SPECTROSCOPY 2023; 77:53-61. [PMID: 36253880 DOI: 10.1177/00037028221135634] [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: 06/16/2023]
Abstract
The analysis of collagen stability is of interest in forensics, archaeology, and molecular paleontology. Collagen decay rates are often measured by thermal kinetic studies that employ liquid chromatography mass spectrometry (LC-MS) to assay collagen quantities. However, these kinetic studies generally focus on measuring the decreasing levels of collagen instead of an exact molecular concentration of each sample. Thus, attenuated total reflection Fourier transform infrared (ATR FT-IR) spectroscopy can offer a simpler and less expensive alternative to LC-MS. The application of a new protocol to determine decreasing amounts of bone collagen in artificially decayed porcine and bovine bone was assessed. The protocol uses a forensic application of ATR FT-IR spectroscopy on size-restricted bone powder from three uniformly high temperature conditions. Also, for the first time, collagen-specific second-harmonic generation (SHG) imaging was also applied to artificially aged bone to add an independent, qualitative perspective to parallel FT-IR assessments. SHG images and ATR FT-IR spectra together reveal the same orderly bone collagen decay as found in previous thermal kinetic studies. Resulting Arrhenius plots with r2 values > 0.95 suggest that the ATR FT-IR-based protocol has potential as a precise and simple tool for measuring bone collagen decay rates. The results are significant for applications of thermal kinetic studies, and our protocol can serve as an inexpensive, precise, and pragmatic means of evaluating bone collagen stability within an array of conditions.
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Affiliation(s)
- Brian Thomas
- Department of Electrical Engineering and Electronics, 4591University of Liverpool, Liverpool, UK
| | - Kevin Anderson
- Department of Biology, 52690Arizona Christian University, Glendale, AZ, USA
| | - Imesha De Silva
- Department of Chemistry, 3404University of North Texas, Denton, TX, USA
| | - Guido Verbeck
- Department of Chemistry, 3404University of North Texas, Denton, TX, USA
| | - Stephen Taylor
- Department of Electrical Engineering and Electronics, 4591University of Liverpool, Liverpool, UK
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30
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The Convergence of FTIR and EVs: Emergence Strategy for Non-Invasive Cancer Markers Discovery. Diagnostics (Basel) 2022; 13:diagnostics13010022. [PMID: 36611313 PMCID: PMC9818376 DOI: 10.3390/diagnostics13010022] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2022] [Revised: 12/01/2022] [Accepted: 12/19/2022] [Indexed: 12/24/2022] Open
Abstract
In conjunction with imaging analysis, pathology-based assessments of biopsied tissue are the gold standard for diagnosing solid tumors. However, the disadvantages of tissue biopsies, such as being invasive, time-consuming, and labor-intensive, have urged the development of an alternate method, liquid biopsy, that involves sampling and clinical assessment of various bodily fluids for cancer diagnosis. Meanwhile, extracellular vesicles (EVs) are circulating biomarkers that carry molecular profiles of their cell or tissue origins and have emerged as one of the most promising biomarkers for cancer. Owing to the biological information that can be obtained through EVs' membrane surface markers and their cargo loaded with biomolecules such as nucleic acids, proteins, and lipids, EVs have become useful in cancer diagnosis and therapeutic applications. Fourier-transform infrared spectroscopy (FTIR) allows rapid, non-destructive, label-free molecular profiling of EVs with minimal sample preparation. Since the heterogeneity of EV subpopulations may result in complicated FTIR spectra that are highly diverse, computational-assisted FTIR spectroscopy is employed in many studies to provide fingerprint spectra of malignant and non-malignant samples, allowing classification with high accuracy, specificity, and sensitivity. In view of this, FTIR-EV approach carries a great potential in cancer detection. The progression of FTIR-based biomarker identification in EV research, the rationale of the integration of a computationally assisted approach, along with the challenges of clinical translation are the focus of this review.
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31
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Temperini ME, Di Giacinto F, Romanò S, Di Santo R, Augello A, Polito R, Baldassarre L, Giliberti V, Papi M, Basile U, Niccolini B, Krasnowska EK, Serafino A, De Spirito M, Di Gaspare A, Ortolani M, Ciasca G. Antenna-enhanced mid-infrared detection of extracellular vesicles derived from human cancer cell cultures. J Nanobiotechnology 2022; 20:530. [PMID: 36514065 PMCID: PMC9746222 DOI: 10.1186/s12951-022-01693-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2022] [Accepted: 10/30/2022] [Indexed: 12/14/2022] Open
Abstract
BACKGROUND Extracellular Vesicles (EVs) are sub-micrometer lipid-bound particles released by most cell types. They are considered a promising source of cancer biomarkers for liquid biopsy and personalized medicine due to their specific molecular cargo, which provides biochemical information on the state of parent cells. Despite this potential, EVs translation process in the diagnostic practice is still at its birth, and the development of novel medical devices for their detection and characterization is highly required. RESULTS In this study, we demonstrate mid-infrared plasmonic nanoantenna arrays designed to detect, in the liquid and dry phase, the specific vibrational absorption signal of EVs simultaneously with the unspecific refractive index sensing signal. For this purpose, EVs are immobilized on the gold nanoantenna surface by immunocapture, allowing us to select specific EV sub-populations and get rid of contaminants. A wet sample-handling technique relying on hydrophobicity contrast enables effortless reflectance measurements with a Fourier-transform infrared (FTIR) spectro-microscope in the wavelength range between 10 and 3 µm. In a proof-of-principle experiment carried out on EVs released from human colorectal adenocarcinoma (CRC) cells, the protein absorption bands (amide-I and amide-II between 5.9 and 6.4 µm) increase sharply within minutes when the EV solution is introduced in the fluidic chamber, indicating sensitivity to the EV proteins. A refractive index sensing curve is simultaneously provided by our sensor in the form of the redshift of a sharp spectral edge at wavelengths around 5 µm, where no vibrational absorption of organic molecules takes place: this permits to extract of the dynamics of EV capture by antibodies from the overall molecular layer deposition dynamics, which is typically measured by commercial surface plasmon resonance sensors. Additionally, the described metasurface is exploited to compare the spectral response of EVs derived from cancer cells with increasing invasiveness and metastatic potential, suggesting that the average secondary structure content in EVs can be correlated with cell malignancy. CONCLUSIONS Thanks to the high protein sensitivity and the possibility to work with small sample volumes-two key features for ultrasensitive detection of extracellular vesicles- our lab-on-chip can positively impact the development of novel laboratory medicine methods for the molecular characterization of EVs.
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Affiliation(s)
- Maria Eleonora Temperini
- grid.7841.aDepartment of Physics, Sapienza University of Rome, Piazzale Aldo Moro 2, 00185 Rome, Italy ,grid.25786.3e0000 0004 1764 2907Center for Life Neuro and Nano Sciences IIT@Sapienza, Istituto Italiano di Tecnologia, Viale Regina Elena 291, 00161 Rome, Italy
| | - Flavio Di Giacinto
- grid.414603.4Fondazione Policlinico Universitario “A. Gemelli”, IRCCS, Rome, Italy ,grid.8142.f0000 0001 0941 3192Dipartimento di Neuroscienze, Sezione di Fisica, Università Cattolica del Sacro Cuore, Rome, Italy
| | - Sabrina Romanò
- grid.414603.4Fondazione Policlinico Universitario “A. Gemelli”, IRCCS, Rome, Italy ,grid.8142.f0000 0001 0941 3192Dipartimento di Neuroscienze, Sezione di Fisica, Università Cattolica del Sacro Cuore, Rome, Italy
| | - Riccardo Di Santo
- grid.414603.4Fondazione Policlinico Universitario “A. Gemelli”, IRCCS, Rome, Italy
| | - Alberto Augello
- grid.414603.4Fondazione Policlinico Universitario “A. Gemelli”, IRCCS, Rome, Italy
| | - Raffaella Polito
- grid.7841.aDepartment of Physics, Sapienza University of Rome, Piazzale Aldo Moro 2, 00185 Rome, Italy
| | - Leonetta Baldassarre
- grid.7841.aDepartment of Physics, Sapienza University of Rome, Piazzale Aldo Moro 2, 00185 Rome, Italy
| | - Valeria Giliberti
- grid.25786.3e0000 0004 1764 2907Center for Life Neuro and Nano Sciences IIT@Sapienza, Istituto Italiano di Tecnologia, Viale Regina Elena 291, 00161 Rome, Italy
| | - Massimiliano Papi
- grid.414603.4Fondazione Policlinico Universitario “A. Gemelli”, IRCCS, Rome, Italy ,grid.8142.f0000 0001 0941 3192Dipartimento di Neuroscienze, Sezione di Fisica, Università Cattolica del Sacro Cuore, Rome, Italy
| | - Umberto Basile
- grid.414603.4Dipartimento di Scienze di Laboratorio e Infettivologiche, Fondazione Policlinico Universitario “A. Gemelli” IRCCS, 00168 Rome, Italy
| | - Benedetta Niccolini
- grid.8142.f0000 0001 0941 3192Dipartimento di Neuroscienze, Sezione di Fisica, Università Cattolica del Sacro Cuore, Rome, Italy
| | - Ewa K. Krasnowska
- grid.5326.20000 0001 1940 4177Institute of Translational Pharmacology, National Research Council of Italy, Rome, Italy
| | - Annalucia Serafino
- grid.5326.20000 0001 1940 4177Institute of Translational Pharmacology, National Research Council of Italy, Rome, Italy
| | - Marco De Spirito
- grid.414603.4Fondazione Policlinico Universitario “A. Gemelli”, IRCCS, Rome, Italy ,grid.8142.f0000 0001 0941 3192Dipartimento di Neuroscienze, Sezione di Fisica, Università Cattolica del Sacro Cuore, Rome, Italy
| | - Alessandra Di Gaspare
- grid.414603.4Fondazione Policlinico Universitario “A. Gemelli”, IRCCS, Rome, Italy ,grid.509494.5NEST, CNR-Istituto Nanoscienze and Scuola Normale Superiore, Piazza San Silvestro 12, 56127 Pisa, Italy
| | - Michele Ortolani
- grid.7841.aDepartment of Physics, Sapienza University of Rome, Piazzale Aldo Moro 2, 00185 Rome, Italy ,grid.25786.3e0000 0004 1764 2907Center for Life Neuro and Nano Sciences IIT@Sapienza, Istituto Italiano di Tecnologia, Viale Regina Elena 291, 00161 Rome, Italy
| | - Gabriele Ciasca
- grid.414603.4Fondazione Policlinico Universitario “A. Gemelli”, IRCCS, Rome, Italy ,grid.8142.f0000 0001 0941 3192Dipartimento di Neuroscienze, Sezione di Fisica, Università Cattolica del Sacro Cuore, Rome, Italy
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Dróżdż A, Sławińska-Brych A, Kubera D, Kimsa-Dudek M, Gola JM, Adamska J, Kruszniewska-Rajs C, Matwijczuk A, Karcz D, Dąbrowski W, Stepulak A, Gagoś M. Effect of Antibiotic Amphotericin B Combinations with Selected 1,3,4-Thiadiazole Derivatives on RPTECs in an In Vitro Model. Int J Mol Sci 2022; 23:ijms232315260. [PMID: 36499589 PMCID: PMC9738598 DOI: 10.3390/ijms232315260] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2022] [Revised: 11/22/2022] [Accepted: 11/25/2022] [Indexed: 12/12/2022] Open
Abstract
4-(5-methyl-1,3,4-thiadiazole-2-yl) benzene-1,3-diol (C1) and 4-[5-(naphthalen-1-ylmethyl)-1,3,4-thiadiazol-2-yl] benzene1,3-diol (NTBD) are representative derivatives of the thiadiazole group, with a high antimycotic potential and minimal toxicity against normal human fibroblast cells. The present study has proved its ability to synergize with the antifungal activity of AmB. The aim of this work was to evaluate the cytotoxic effects of C1 or NTBD, alone or in combination with AmB, on human renal proximal tubule epithelial cells (RPTECs) in vitro. Cell viability was assessed with the MTT assay. Flow cytometry and spectrofluorimetric techniques were used to assess the type of cell death and production of reactive oxygen species (ROS), respectively. The ELISA assay was performed to measure the caspase-2, -3, and -9 activity. ATR-FTIR spectroscopy was used to evaluate biomolecular changes in RPTECs induced by the tested formulas. The combinations of C1/NTBD and AmB did not exert a strong inhibitory effect on the viability/growth of kidney cells, as evidenced by the negligible changes in the apoptotic/necrotic rate and caspase activity, compared to the control cells. Both NTBD and C1 displayed stronger anti-oxidant activity when combined with AmB. The relatively low nephrotoxicity of the thiadiazole derivative combinations and the protective activity against AmB-induced oxidative stress may indicate their potential use in the therapy of fungal infections.
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Affiliation(s)
- Agnieszka Dróżdż
- Department of Cell Biology, Maria Curie-Sklodowska University, Akademicka 19, 20-033 Lublin, Poland
| | - Adrianna Sławińska-Brych
- Department of Cell Biology, Maria Curie-Sklodowska University, Akademicka 19, 20-033 Lublin, Poland
| | - Dominika Kubera
- Department of Cell Biology, Maria Curie-Sklodowska University, Akademicka 19, 20-033 Lublin, Poland
| | - Magdalena Kimsa-Dudek
- Department of Nutrigenomics and Bromatology, Faculty of Pharmaceutical Sciences in Sosnowiec, Medical University of Silesia, 40-055 Katowice, Poland
| | - Joanna Magdalena Gola
- Department of Molecular Biology, Faculty of Pharmaceutical Sciences in Sosnowiec, Medical University of Silesia, 40-055 Katowice, Poland
- Correspondence:
| | - Jolanta Adamska
- Department of Molecular Biology, Faculty of Pharmaceutical Sciences in Sosnowiec, Medical University of Silesia, 40-055 Katowice, Poland
| | - Celina Kruszniewska-Rajs
- Department of Molecular Biology, Faculty of Pharmaceutical Sciences in Sosnowiec, Medical University of Silesia, 40-055 Katowice, Poland
| | - Arkadiusz Matwijczuk
- Department of Biophysics, University of Life Sciences, Akademicka 13, 20-950 Lublin, Poland
| | - Dariusz Karcz
- Department of Chemical Technology and Environmental Analytics, Cracow University of Technology, 31-155 Krakow, Poland
| | - Wojciech Dąbrowski
- I Clinic of Anaesthesiology and Intensive Therapy with Clinical Paediatric Department, Medical University of Lublin, Jaczewskiego 8, 20-090 Lublin, Poland
| | - Andrzej Stepulak
- Department of Biochemistry and Molecular Biology, Medical University of Lublin, 20-093 Lublin, Poland
| | - Mariusz Gagoś
- Department of Cell Biology, Maria Curie-Sklodowska University, Akademicka 19, 20-033 Lublin, Poland
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Rohmer M, Freudenberg J, Binder WH. Secondary Structures in Synthetic Poly(Amino Acids): Homo- and Copolymers of Poly(Aib), Poly(Glu), and Poly(Asp). Macromol Biosci 2022; 23:e2200344. [PMID: 36377468 DOI: 10.1002/mabi.202200344] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2022] [Revised: 11/02/2022] [Indexed: 11/16/2022]
Abstract
The secondary structure of poly(amino acids) is an excellent tool for controlling and understanding the functionality and properties of proteins. In this perspective article the secondary structures of the homopolymers of oligo- and poly-glutamic acid (Glu), aspartic acid (Asp), and α-aminoisobutyric acid (Aib) are discussed. Information on external and internal factors, such as the nature of side groups, interactions with solvents and interactions between chains is reviewed. A special focus is directed on the folding in hybrid-polymers consisting of oligo(amino acids) and synthetic polymers. Being part of the SFB TRR 102 "Polymers under multiple constraints: restricted and controlled molecular order and mobility" this overview is embedded into the cross section of protein fibrillation and supramolecular polymers. As polymer- and amino acid folding is an important step for the utilization and design of future biomolecules these principles guide to a deeper understanding of amyloid fibrillation.
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Affiliation(s)
- Matthias Rohmer
- Macromolecular Chemistry, Von-Danckelmann-Platz 4, 06120, Halle, Germany
| | - Jan Freudenberg
- Macromolecular Chemistry, Von-Danckelmann-Platz 4, 06120, Halle, Germany
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Zheng N, Long M, Zhang Z, Zan Q, Osire T, Zhou H, Xia X. Protein-Glutaminase Engineering Based on Isothermal Compressibility Perturbation for Enhanced Modification of Soy Protein Isolate. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2022; 70:13969-13978. [PMID: 36281950 DOI: 10.1021/acs.jafc.2c06063] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
Abstract
Protein-glutaminase plays a significant role in future food (e.g., plant-based meat) processing as a result of its ability to improve the solubility, foaming, emulsifying, and gel properties of plant-based proteins. However, poor stability, activity, high pressure, and high shear processing environments hinder its application. Therefore, we developed an application-oriented method isothermal compressibility perturbation engineering strategy to improve enzyme performance by simulating the high-pressure environment. The best variant with remarkable improvement in specific activity and half-time, N16M/Q21H/T113E, exhibited a 4.28-fold increase compared to the wild type in specific activity (117.18 units/mg) and a 1.23-fold increase in half-time (472 min), as one of the highest comprehensive performances ever reported. The solubility of the soy protein isolate deaminated by the N16M/Q21H/T113E mutant was 55.74% higher than that deaminated by the wild type, with a tinier particle size and coarser texture. Overall, this strategy has the potential to improve the functional performance of enzymes under complex food processing conditions.
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Affiliation(s)
- Nan Zheng
- Key Laboratory of Industrial Biotechnology, Ministry of Education, School of Biotechnology, Jiangnan University, Wuxi, Jiangsu214122, People's Republic of China
| | - Mengfei Long
- Key Laboratory of Industrial Biotechnology, Ministry of Education, School of Biotechnology, Jiangnan University, Wuxi, Jiangsu214122, People's Republic of China
| | - Zehua Zhang
- Key Laboratory of Industrial Biotechnology, Ministry of Education, School of Biotechnology, Jiangnan University, Wuxi, Jiangsu214122, People's Republic of China
| | - Qijia Zan
- Key Laboratory of Industrial Biotechnology, Ministry of Education, School of Biotechnology, Jiangnan University, Wuxi, Jiangsu214122, People's Republic of China
| | - Tolbert Osire
- Faculty of Biology, Shenzhen MSU-BIT University, Shenzhen, Guangdong518172, People's Republic of China
| | - Huimin Zhou
- Key Laboratory of Industrial Biotechnology, Ministry of Education, School of Biotechnology, Jiangnan University, Wuxi, Jiangsu214122, People's Republic of China
| | - Xiaole Xia
- Key Laboratory of Industrial Biotechnology, Ministry of Education, School of Biotechnology, Jiangnan University, Wuxi, Jiangsu214122, People's Republic of China
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Mouzakitis CK, Sereti V, Matsakidou A, Kotsiou K, Biliaderis CG, Lazaridou A. Physicochemical properties of zein-based edible films and coatings for extending wheat bread shelf life. Food Hydrocoll 2022. [DOI: 10.1016/j.foodhyd.2022.107856] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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36
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Luchini A, Tidemand FG, Johansen NT, Sebastiani F, Corucci G, Fragneto G, Cárdenas M, Arleth L. Dark peptide discs for the investigation of membrane proteins in supported lipid bilayers: the case of synaptobrevin 2 (VAMP2). NANOSCALE ADVANCES 2022; 4:4526-4534. [PMID: 36341300 PMCID: PMC9595196 DOI: 10.1039/d2na00384h] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/15/2022] [Accepted: 09/10/2022] [Indexed: 06/16/2023]
Abstract
Supported lipid bilayers (SLBs) are commonly used as model systems mimicking biological membranes. Recently, we reported a new method to produce SLBs with incorporated membrane proteins, which is based on the application of peptide discs [Luchini et al., Analytical Chemistry, 2020, 92, 1081-1088]. Peptide discs are small discoidal particles composed of a lipid core and an outer belt of self-assembled 18A peptides. SLBs including membrane proteins can be formed by depositing the peptide discs on a solid support and subsequently removing the peptide by buffer rinsing. Here, we introduce a new variant of the 18A peptide, named dark peptide (d18A). d18A exhibits UV absorption at 214 nm, whereas the absorption at 280 nm is negligible. This improves sample preparation as it enables a direct quantification of the membrane protein concentration in the peptide discs by measuring UV absorption at 280 nm. We describe the application of the peptide discs prepared with d18A (dark peptide discs) to produce SLBs with a membrane protein, synaptobrevin 2 (VAMP2). The collected data showed the successful formation of SLBs with high surface coverage and incorporation of VAMP2 in a single orientation with the extramembrane domain exposed towards the bulk solvent. Compared to 18A, we found that d18A was more efficiently removed from the SLB. Our data confirmed the structural organisation of VAMP2 as including both α-helical and β-sheet secondary structure. We further verified the orientation of VAMP2 in the SLBs by characterising the binding of VAMP2 with α-synuclein. These results point at the produced SLBs as relevant membrane models for biophysical studies as well as nanostructured biomaterials.
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Affiliation(s)
| | - Frederik Grønbæk Tidemand
- Department of Plant and Environmental Sciences, University of Copenhagen Thorvaldsensvej 40 1871 Frederiksberg C Denmark
| | - Nicolai Tidemand Johansen
- Department of Plant and Environmental Sciences, University of Copenhagen Thorvaldsensvej 40 1871 Frederiksberg C Denmark
| | - Federica Sebastiani
- Biofilms Research Center for Biointerfaces and Department of Biomedical Science, Faculty of Health and Society, Malmö University Per Albin Hanssons Väg 35 21432 Malmö Sweden
| | - Giacomo Corucci
- Institut Laue-Langevin 71 Avenue des Martyrs, BP 156 38042 Grenoble France
- Université Grenoble Alpes, Ecole Doctorale de Physique 110 Rue de la Chimie 38400 Saint-Martin-d'Hères France
| | - Giovanna Fragneto
- Institut Laue-Langevin 71 Avenue des Martyrs, BP 156 38042 Grenoble France
- Université Grenoble Alpes, Ecole Doctorale de Physique 110 Rue de la Chimie 38400 Saint-Martin-d'Hères France
| | - Marité Cárdenas
- Biofilms Research Center for Biointerfaces and Department of Biomedical Science, Faculty of Health and Society, Malmö University Per Albin Hanssons Väg 35 21432 Malmö Sweden
| | - Lise Arleth
- Niels Bohr Institute, University of Copenhagen, Universitetsparken 5 2100 Copenhagen Denmark
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ATR-FTIR Biosensors for Antibody Detection and Analysis. Int J Mol Sci 2022; 23:ijms231911895. [PMID: 36233197 PMCID: PMC9570191 DOI: 10.3390/ijms231911895] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2022] [Revised: 09/29/2022] [Accepted: 10/04/2022] [Indexed: 11/17/2022] Open
Abstract
Quality control of drug products is of paramount importance in the pharmaceutical world. It ensures product safety, efficiency, and consistency. In the case of complex biomolecules such as therapeutic proteins, small variations in bioprocess parameters can induce substantial variations in terms of structure, impacting the drug product quality. Conditions for obtaining highly reproducible grafting of 11-mercaptoundecanoic acid were determined. On that basis, we developed an easy-to-use, cost effective, and timesaving biosensor based on ATR-FTIR spectroscopy able to detect immunoglobulins during their production. A germanium crystal, used as an internal reflection element (IRE) for FTIR spectroscopy, was covalently coated with immunoglobulin-binding proteins. This thereby functionalized surface could bind only immunoglobulins present in complex media such as culture media or biopharmaceutical products. The potential subsequent analysis of their structure by ATR-FTIR spectroscopy makes this biosensor a powerful tool to monitor the production of biotherapeutics and assess important critical quality attributes (CQAs) such as high-order structure and aggregation level.
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Luo S, Chen J, Zeng Y, Dai J, Li S, Yan J, Liu Y. Effect of water-in-oil-in-water (W/O/W) double emulsions to encapsulate nisin on the quality and storage stability of fresh noodles. Food Chem X 2022; 15:100378. [PMID: 36211791 PMCID: PMC9532707 DOI: 10.1016/j.fochx.2022.100378] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2022] [Revised: 06/11/2022] [Accepted: 06/22/2022] [Indexed: 11/30/2022] Open
Abstract
Ultrasonic and microwave treatment improved the extraction rate of rock bean protein. Rock bean protein has a high content of 7S and 11S globulin components. The prepared W/O/W microcapsules can keep the noodles fresh.
Rock-bean protein (RP) was extracted from wild rock beans by ultrasonic treatment and microwave extraction. The RP has a high content of 7S and 11S globulin components and good heat stability. Subsequently, water-oil-water double emulsions were prepared using a water core containing nisin, momordica charantia extract (MCE), and Lactobacillus plantarum as functional additives, corn oil as the intermediate wall, and RP/gum arabic (GA) as the outer wall material. For a ratio of corn oil to water of 5:1, the maximum encapsulation efficiency was 28.22%, and RP/GA had good dispersion characteristics, where the smallest average particle size was achieved for a 1:1 ratio. Finally, the microcapsules were used to study the effect of its addition to noodles. The addition of 2 wt% of the microcapsules to low-gluten flour resulted in a dough with suitable rheology, and can extend the shelf life of the fresh noodles prepared using this dough.
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Li Y, Koopal LK, Chai Y, Tan W, Wu C, Tang X, Chen Y. Spectroscopic investigation of conformational changes in urease caused by interaction with humic acid. Colloids Surf B Biointerfaces 2022; 215:112510. [PMID: 35462231 DOI: 10.1016/j.colsurfb.2022.112510] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2021] [Revised: 04/06/2022] [Accepted: 04/16/2022] [Indexed: 01/16/2023]
Abstract
Urease in soil interacts with humic acid (HA), which results in a change of the enzymatic activity and stability. However, knowledge on the conformational change of urease in the presence of HA is still lacking. Therefore, the structure of urease (net zero charge at pH 5.2) interacting with HA and the microenvironments of the tyrosine (Tyr) and tryptophane (Trp) residues were investigated at pH 6.7 and 8.0 and 0.5 and 50 mmol L-1 KCl using spectroscopic techniques. Fluorescence intensity of urease was progressively inhibited by HA with increasing mass ratio f of HA/urease. Moreover, quenching of urease fluorescence by HA was strongest at pH 6.7 (and 50 mmol L-1 KCl) where the hydrophobic attraction was counteracted by only a weak electrostatic repulsion. HA exerted only a minor effect on the positions of the maximum excitation bands for Tyr and Trp residues, indicating insignificant changes in the microenvironment of these residues in the presence of HA. At pH 6.7, the amide I and amide II bands were inhibited by HA. Curve-fitting of the amide I band of urease in complexes indicated that the percentages of α-helix, β-sheet and β-turn were changed. At pH 8 HA had little effect on the circular dichroism and attenuated total reflectance Fourier transform infrared spectra of urease. At this pH the interaction between urease and HA was weak due to the relatively strong electrostatic repulsion and the conformational change was insignificant. The present results increase our understanding of negatively charged protein behavior in natural environments dominated by humic substances.
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Affiliation(s)
- Yan Li
- Institute of Environment Resource and Soil Fertilizer, Zhejiang Academy of Agricultural Sciences, Hangzhou 310021, China; National Agricultural Experimental Station for Soil Quality, Jiaxing 314000, China
| | - Luuk K Koopal
- Physical Chemistry and Soft Matter, Wageningen University and Research, Stippeneng 4, 6708 WE Wageningen, the Netherlands
| | - Yanjun Chai
- Key Laboratory of Recycling and Ecological Treatment of Waste Biomass of Zhejiang Province, School of Environment and Natural Resources, Zhejiang University of Science and Technology, Hangzhou 310023, China
| | - Wenfeng Tan
- College of Resources and Environment, Huazhong Agricultural University, Wuhan 430070, China.
| | - Chunyan Wu
- Institute of Environment Resource and Soil Fertilizer, Zhejiang Academy of Agricultural Sciences, Hangzhou 310021, China; National Agricultural Experimental Station for Soil Quality, Jiaxing 314000, China
| | - Xu Tang
- Institute of Environment Resource and Soil Fertilizer, Zhejiang Academy of Agricultural Sciences, Hangzhou 310021, China; National Agricultural Experimental Station for Soil Quality, Jiaxing 314000, China
| | - Yi Chen
- Institute of Environment Resource and Soil Fertilizer, Zhejiang Academy of Agricultural Sciences, Hangzhou 310021, China; National Agricultural Experimental Station for Soil Quality, Jiaxing 314000, China.
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Jiang T, Xie Y, Dong J, Yang X, Qu S, Wang X, Sun C. The dexamethasone acetate cubosomes as a potential transdermal delivery system for treating skin inflammation. J Drug Deliv Sci Technol 2022. [DOI: 10.1016/j.jddst.2022.103567] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Yan X, He Y, Bai X, McClements DJ, Chen S, Liu X, Liu F. Development and application of hydrophilic-hydrophobic dual-protein Pickering emulsifiers: EGCG-modified caseinate-zein complexes. Food Res Int 2022; 157:111451. [PMID: 35761690 DOI: 10.1016/j.foodres.2022.111451] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2022] [Revised: 05/19/2022] [Accepted: 05/31/2022] [Indexed: 11/29/2022]
Abstract
Zein nanoparticles are commonly used as colloidal emulsifiers to form and stabilize Pickering emulsions. However, the strong surface hydrophobicity of zein nanoparticles limits their widespread application. In this study, composite colloidal emulsifiers were fabricated from zein, sodium caseinate (NaCas), and epigallocatechin gallate (EGCG). Initially, NaCas-EGCG conjugates were formed using either an alkaline or enzymatic method. The enzymatic method led to conjugates containing more EGCG and with a higher thermal stability and surface hydrophilicity. Colloidal emulsifiers were prepared using an antisolvent precipitation method that involved titrating an ethanolic zein solution into an aqueous NaCas-EGCG conjugate solution. The potential application of these emulsifiers for forming and stabilizing high internal phase emulsions (HIPEs) was then explored. The emulsification properties of the zein nanoparticles were improved after they were complexed with NaCas-EGCG conjugates. Pickering HIPEs containing closely packed polygon oil droplets were formed from the colloidal emulsifiers, even at low particle concentrations (0.3% w/v). Overall, our results show that the functional performance of zein nanoparticles can be improved by complexing them with NaCas-EGCG conjugates. The novel colloidal emulsifiers developed in this study may therefore have useful applications in the food and other industries.
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Affiliation(s)
- Xiaojia Yan
- College of Food Science and Engineering, Northwest A&F University, Yangling, Shaanxi, China
| | - Yiyang He
- College of Food Science and Engineering, Northwest A&F University, Yangling, Shaanxi, China
| | - Xiangqi Bai
- College of Food Science and Engineering, Northwest A&F University, Yangling, Shaanxi, China
| | | | - Shuai Chen
- School of Public Health, Wuhan University, 430071, China
| | - Xuebo Liu
- College of Food Science and Engineering, Northwest A&F University, Yangling, Shaanxi, China
| | - Fuguo Liu
- College of Food Science and Engineering, Northwest A&F University, Yangling, Shaanxi, China.
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42
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Ołdak Ł, Zielińska Z, Gorodkiewicz E. Methods of PARP-1 Determination and its Importance in Living
Organisms. Protein Pept Lett 2022; 29:496-504. [DOI: 10.2174/0929866529666220405160715] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2021] [Revised: 01/03/2022] [Accepted: 01/20/2022] [Indexed: 11/22/2022]
Abstract
Abstract:
PARP-1 is one of the 18 PARP enzymes that are involved in important processes at the
cellular level. The most important tasks of PARP-1 are to detect and repair DNA damage and to
prevent processes of apoptosis. By finding and using new strategies for marking and detecting the
activity of this protein, it is possible to identify more and more tasks in which it participates. In
pathological states, PARP-1 activity increases significantly. Since the 1980s, scientists have been
searching for and discussing substances that may inhibit PARP-1 activity and disrupt DNA damage
response pathways. In this way, unwanted cells could be destroyed. The paper presents a short
description of the methods used in the determination of PARP-1 by various research groups. A
critical approach to each of them was also made by pointing to the advantages and disadvantages of
the described analytical methods. The literature review contains information on methods useful for
PARP-1 determination, such as SPR, QCM, CL and FL, DPV, SDS-PAGE with MS, MALDI MS,
Western Blot, ELISA and ATR-FTIR spectroscopy. It also includes analysis of the results of
research on inhibitors that may be effective in the diagnosis and treatment of cancer and other
diseases.
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Affiliation(s)
- Łukasz Ołdak
- Bioanalysis Laboratory, Faculty of Chemistry, University of Bialystok, Ciolkowskiego 1K, 15-245, Bialystok, Poland
- Doctoral School of Exact and Natural Science, Faculty of Chemistry, Bioanalysis Laboratory, University of Bialystok, Ciolkowskiego 1K, 15-245, Bialystok, Poland
| | - Zuzanna Zielińska
- Bioanalysis Laboratory, Faculty of Chemistry, University of Bialystok, Ciolkowskiego 1K, 15-245, Bialystok, Poland
| | - Ewa Gorodkiewicz
- Bioanalysis Laboratory, Faculty of Chemistry, University of Bialystok, Ciolkowskiego 1K, 15-245, Bialystok, Poland
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43
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Early sum frequency generation vibrational spectroscopic studies on peptides and proteins at interfaces. Biointerphases 2022; 17:031202. [PMID: 35525602 DOI: 10.1116/6.0001859] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
This paper summarizes the early research results on studying proteins and peptides at interfaces using sum frequency generation (SFG) vibrational spectroscopy. SFG studies in the C-H stretching frequency region to examine the protein side-chain behavior and in the amide I frequency region to investigate the orientation and conformation of interfacial peptides/proteins are presented. The early chiral SFG research and SFG isotope labeling studies on interfacial peptides/proteins are also discussed. These early SFG studies demonstrate the feasibility of using SFG to elucidate interfacial molecular structures of peptides and proteins in situ, which built a foundation for later SFG investigations on peptides and proteins at interfaces.
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Optimization of Soybean Protein Extraction Using By-Products from NaCl Electrolysis as an Application of the Industrial Symbiosis Concept. APPLIED SCIENCES-BASEL 2022. [DOI: 10.3390/app12063113] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Defatted soybean flour is generated during the oil extraction process of soybean, and it has a protein content of ~50%. On the other hand, an alkaline solution of NaOH is produced during the electrolysis process of NaCl in a novel method used to make a potent disinfectant/antiseptic (HOCl). In the present work, we suggest using these two products to produce soy protein isolate (SPI), aiming to create an industrial symbiosis. A Box–Behnken experimental design was executed, and a surface response analysis was performed to optimize temperature, alkaline solution, and time used for SPI extraction. The SPI produced at optimal conditions was then characterized. The experimental results fit well with a second-order polynomial equation that could predict 93.15% of the variability under a combination of 70 °C, alkaline solution 3 (pH 12.68), and 44.7 min of the process. The model predicts a 49.79% extraction yield, and when tested, we obtained 48.30% within the confidence interval (46.66–52.93%). The obtained SPI was comparable in content and structure with a commercial SPI by molecular weight and molecular spectroscopy characterization. Finally, the urease activity (UA) test was negative, indicating no activity for trypsin inhibitor. Based on the functional properties, the SPI is suitable for food applications.
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Yang S, Zhang Q, Yang H, Shi H, Dong A, Wang L, Yu S. Progress in infrared spectroscopy as an efficient tool for predicting protein secondary structure. Int J Biol Macromol 2022; 206:175-187. [PMID: 35217087 DOI: 10.1016/j.ijbiomac.2022.02.104] [Citation(s) in RCA: 52] [Impact Index Per Article: 26.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2021] [Revised: 02/14/2022] [Accepted: 02/17/2022] [Indexed: 12/21/2022]
Abstract
Infrared (IR) spectroscopy is a highly sensitive technique that provides complete information on chemical compositions. The IR spectra of proteins or peptides give rise to nine characteristic IR absorption bands. The amide I bands are the most prominent and sensitive vibrational bands and widely used to predict protein secondary structures. The interference of H2O absorbance is the greatest challenge for IR protein secondary structure prediction. Much effort has been made to reduce/eliminate the interference of H2O, simplify operation steps, and increase prediction accuracy. Progress in sampling and equipment has rendered the Fourier transform infrared (FTIR) technique suitable for determining the protein secondary structure in broader concentration ranges, greatly simplifying the operating steps. This review highlights the recent progress in sample preparation, data analysis, and equipment development of FTIR in A/T mode, with a focus on recent applications of FTIR spectroscopy in the prediction of protein secondary structure. This review also provides a brief introduction of the progress in ATR-FTIR for predicting protein secondary structure and discusses some combined IR methods, such as AFM-based IR spectroscopy, that are used to analyze protein structural dynamics and protein aggregation.
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Affiliation(s)
- Shouning Yang
- Zhejiang Provincial Key Laboratory of Advanced Mass Spectrometry and Molecular Analysis, Institute of Mass Spectrometry, School of Material Science and Chemical Engineering, Ningbo University, Ningbo, Zhejiang 315211, China
| | | | - Huayan Yang
- Zhejiang Provincial Key Laboratory of Advanced Mass Spectrometry and Molecular Analysis, Institute of Mass Spectrometry, School of Material Science and Chemical Engineering, Ningbo University, Ningbo, Zhejiang 315211, China
| | - Haimei Shi
- Zhejiang Provincial Key Laboratory of Advanced Mass Spectrometry and Molecular Analysis, Institute of Mass Spectrometry, School of Material Science and Chemical Engineering, Ningbo University, Ningbo, Zhejiang 315211, China
| | - Aichun Dong
- Department of Chemistry and Biochemistry, University of Northern Colorado, Greeley, CO, USA.
| | - Li Wang
- Kweichow Moutai Group, Renhuai, Guizhou 564501, China.
| | - Shaoning Yu
- Zhejiang Provincial Key Laboratory of Advanced Mass Spectrometry and Molecular Analysis, Institute of Mass Spectrometry, School of Material Science and Chemical Engineering, Ningbo University, Ningbo, Zhejiang 315211, China.
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Aitekenov S, Sultangaziyev A, Abdirova P, Yussupova L, Gaipov A, Utegulov Z, Bukasov R. Raman, Infrared and Brillouin Spectroscopies of Biofluids for Medical Diagnostics and for Detection of Biomarkers. Crit Rev Anal Chem 2022; 53:1561-1590. [PMID: 35157535 DOI: 10.1080/10408347.2022.2036941] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/23/2023]
Abstract
This review surveys Infrared, Raman/SERS and Brillouin spectroscopies for medical diagnostics and detection of biomarkers in biofluids, that include urine, blood, saliva and other biofluids. These optical sensing techniques are non-contact, noninvasive and relatively rapid, accurate, label-free and affordable. However, those techniques still have to overcome some challenges to be widely adopted in routine clinical diagnostics. This review summarizes and provides insights on recent advancements in research within the field of vibrational spectroscopy for medical diagnostics and its use in detection of many health conditions such as kidney injury, cancers, cardiovascular and infectious diseases. The six comprehensive tables in the review and four tables in supplementary information summarize a few dozen experimental papers in terms of such analytical parameters as limit of detection, range, diagnostic sensitivity and specificity, and other figures of merits. Critical comparison between SERS and FTIR methods of analysis reveals that on average the reported sensitivity for biomarkers in biofluids for SERS vs FTIR is about 103 to 105 times higher, since LOD SERS are lower than LOD FTIR by about this factor. High sensitivity gives SERS an edge in detection of many biomarkers present in biofluids at low concentration (nM and sub nM), which can be particularly advantageous for example in early diagnostics of cancer or viral infections.HighlightsRaman, Infrared spectroscopies use low volume of biofluidic samples, little sample preparation, fast time of analysis and relatively inexpensive instrumentation.Applications of SERS may be a bit more complicated than applications of FTIR (e.g., limited shelf life for nanoparticles and substrates, etc.), but this can be generously compensated by much higher (by several order of magnitude) sensitivity in comparison to FTIR.High sensitivity makes SERS a noninvasive analytical method of choice for detection, quantification and diagnostics of many health conditions, metabolites, and drugs, particularly in diagnostics of cancer, including diagnostics of its early stages.FTIR, particularly ATR-FTIR can be a method of choice for efficient sensing of many biomarkers, present in urine, blood and other biofluids at sufficiently high concentrations (mM and even a few µM)Brillouin scattering spectroscopy detecting visco-elastic properties of probed liquid medium, may also find application in clinical analysis of some biofluids, such as cerebrospinal fluid and urine.
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Affiliation(s)
- Sultan Aitekenov
- Department of Chemistry, School of Sciences and Humanities (SSH), Nazarbayev University, Nur-Sultan, Kazakhstan
| | - Alisher Sultangaziyev
- Department of Chemistry, School of Sciences and Humanities (SSH), Nazarbayev University, Nur-Sultan, Kazakhstan
| | - Perizat Abdirova
- Department of Chemistry, School of Sciences and Humanities (SSH), Nazarbayev University, Nur-Sultan, Kazakhstan
| | - Lyailya Yussupova
- Department of Chemistry, School of Sciences and Humanities (SSH), Nazarbayev University, Nur-Sultan, Kazakhstan
| | | | - Zhandos Utegulov
- Department of Physics, School of Sciences and Humanities (SSH), Nazarbayev University, Nur-Sultan, Kazakhstan
| | - Rostislav Bukasov
- Department of Chemistry, School of Sciences and Humanities (SSH), Nazarbayev University, Nur-Sultan, Kazakhstan
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47
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Schorer V, Haas J, Stach R, Kokoric V, Groß R, Muench J, Hummel T, Sobek H, Mennig J, Mizaikoff B. Towards the direct detection of viral materials at the surface of protective face masks via infrared spectroscopy. Sci Rep 2022; 12:2309. [PMID: 35145194 PMCID: PMC8831636 DOI: 10.1038/s41598-022-06335-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2021] [Accepted: 01/21/2022] [Indexed: 11/29/2022] Open
Abstract
The ongoing COVID-19 pandemic represents a considerable risk for the general public and especially for health care workers. To avoid an overloading of the health care system and to control transmission chains, the development of rapid and cost-effective techniques allowing for the reliable diagnosis of individuals with acute respiratory infections are crucial. Uniquely, the present study focuses on the development of a direct face mask sampling approach, as worn (i.e., used) disposable face masks contain exogenous environmental constituents, as well as endogenously exhaled breath aerosols. Optical techniques-and specifically infrared (IR) molecular spectroscopic techniques-are promising tools for direct virus detection at the surface of such masks. In the present study, a rapid and non-destructive approach for monitoring exposure scenarios via medical face masks using attenuated total reflection infrared spectroscopy is presented. Complementarily, IR external reflection spectroscopy was evaluated in comparison for rapid mask analysis. The utility of a face mask-based sampling approach was demonstrated by differentiating water, proteins, and virus-like particles sampled onto the mask. Data analysis using multivariate statistical algorithms enabled unambiguously classifying spectral signatures of individual components and biospecies. This approach has the potential to be extended towards the rapid detection of SARS-CoV-2-as shown herein for the example of virus-like particles which are morphologically equivalent to authentic virus-without any additional sample preparation or elaborate testing equipment at laboratory facilities. Therefore, this strategy may be implemented as a routine large-scale monitoring routine, e.g., at health care institutions, nursing homes, etc. ensuring the health and safety of medical personnel.
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Affiliation(s)
- Vanessa Schorer
- Institute of Analytical and Bioanalytical Chemistry, Ulm University, Albert-Einstein-Allee 11, 89081, Ulm, Germany
| | - Julian Haas
- Hahn-Schickard, Sedanstraße 14, 89077, Ulm, Germany
| | - Robert Stach
- Hahn-Schickard, Sedanstraße 14, 89077, Ulm, Germany
| | | | - Rüdiger Groß
- Institute of Molecular Virology, Ulm University Medical Center, Meyerhofstr. 1, 89081, Ulm, Germany
| | - Jan Muench
- Institute of Molecular Virology, Ulm University Medical Center, Meyerhofstr. 1, 89081, Ulm, Germany
| | - Tim Hummel
- Labor Dr. Merk & Kollegen GmbH, Beim Braunland 1, 88416, Ochsenhausen, Germany
- Boehringer Ingelheim Therapeutics GmbH, Beim Braunland 1, 88416, Ochsenhausen, Germany
| | - Harald Sobek
- Labor Dr. Merk & Kollegen GmbH, Beim Braunland 1, 88416, Ochsenhausen, Germany
| | - Jan Mennig
- Labor Dr. Merk & Kollegen GmbH, Beim Braunland 1, 88416, Ochsenhausen, Germany
| | - Boris Mizaikoff
- Institute of Analytical and Bioanalytical Chemistry, Ulm University, Albert-Einstein-Allee 11, 89081, Ulm, Germany.
- Hahn-Schickard, Sedanstraße 14, 89077, Ulm, Germany.
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48
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Leite Milião G, Souza Soares LD, Balbino DF, Almeida Alves Barbosa ÉD, Bressan GC, Carvalho Teixeira AVND, dos Reis Coimbra JS, Oliveira EBD. pH influence on the mechanisms of interaction between chitosan and ovalbumin: a multi-spectroscopic approach. Food Hydrocoll 2022. [DOI: 10.1016/j.foodhyd.2021.107137] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
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49
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Li M, Liu M, Sha Y. Induced and Inversed Circularly Polarized Luminescence of Achiral Thioflavin T Assembled on Peptide Fibril. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2022; 18:e2106130. [PMID: 34881501 DOI: 10.1002/smll.202106130] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/09/2021] [Revised: 11/09/2021] [Indexed: 06/13/2023]
Abstract
Chiroptical inversion of amyloid fibrils is a novel phenomenon and is of fundamental importance; however, the underlying structural basis remains poorly understood. Here, the co-assembly of Thioflavin T (ThT) with T1 amyloid fibril and the induced supramolecular chirality is investigated by induced circular dichroism (ICD) and circularly polarized luminescence (CPL), followed by direct morphological helicity observation of the fibril by an atomic force microscope (AFM). ThT exhibits negative ICD and CPL when assembled on the left-handed T1 fibril. Interestingly, when ThT dynamically interacts with the T1 fibril, the left-handed fibril partially converts into right-handed, accompanied with the inversion of CD and CPL signals. These results indicate that the morphological helicity of template fibril cannot be arbitrarily distinguished by the sign of chiroptical spectra of the dye/peptide assemblies.
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Affiliation(s)
- Meijun Li
- Department of Biochemistry and Biophysics, School of Basic Medical Sciences, Peking University, Beijing, 100191, China
| | - Minghua Liu
- Key Laboratory of Nanosystem and Hierarchical Fabrication, CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology, Beijing, 100190, China
| | - Yinlin Sha
- Department of Biochemistry and Biophysics, School of Basic Medical Sciences, Peking University, Beijing, 100191, China
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50
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Bebesi T, Kitka D, Gaál A, Szigyártó IC, Deák R, Beke-Somfai T, Koprivanacz K, Juhász T, Bóta A, Varga Z, Mihály J. Storage conditions determine the characteristics of red blood cell derived extracellular vesicles. Sci Rep 2022; 12:977. [PMID: 35046483 PMCID: PMC8770621 DOI: 10.1038/s41598-022-04915-7] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2021] [Accepted: 12/21/2021] [Indexed: 12/18/2022] Open
Abstract
Extracellular vesicles (EVs) are released during the storage of red blood cell (RBC) concentrates and might play adverse or beneficial roles throughout the utilization of blood products (transfusion). Knowledge of EV release associated factors and mechanism amends blood product management. In the present work the impact of storage time and medium (blood preserving additive vs isotonic phosphate buffer) on the composition, size, and concentration of EVs was studied using attenuated total reflection infrared (ATR-IR) spectroscopy, microfluidic resistive pulse sensing (MRPS) and freeze-fraction combined transmission electron micrography (FF-TEM). The spectroscopic protein-to-lipid ratio based on amide and the C-H stretching band intensity ratio indicated the formation of various vesicle subpopulations depending on storage conditions. After short storage, nanoparticles with high relative protein content were detected. Spectral analysis also suggested differences in lipid and protein composition, too. The fingerprint region (from 1300 to 1000 cm-1) of the IR spectra furnishes additional information about the biomolecular composition of RBC-derived EVs (REVs) such as adenosine triphosphate (ATP), lactose, glucose, and oxidized hemoglobin. The difference between the vesicle subpopulations reveals the complexity of the REV formation mechanism. IR spectroscopy, as a quick, cost-effective, and label-free technique provides valuable novel biochemical insight and might be used complementary to traditional omics approaches on EVs.
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Affiliation(s)
- Tímea Bebesi
- grid.425578.90000 0004 0512 3755Institute of Materials and Environmental Chemistry, Research Centre for Natural Sciences (RCNS), Magyar tudósok körútja 2, 1117 Budapest, Hungary ,grid.5591.80000 0001 2294 6276Hevesy György PhD School of Chemistry, ELTE Eötvös Loránd University, Pázmány Péter sétány 1/A, 1117 Budapest, Hungary
| | - Diána Kitka
- grid.425578.90000 0004 0512 3755Institute of Materials and Environmental Chemistry, Research Centre for Natural Sciences (RCNS), Magyar tudósok körútja 2, 1117 Budapest, Hungary ,grid.5591.80000 0001 2294 6276Hevesy György PhD School of Chemistry, ELTE Eötvös Loránd University, Pázmány Péter sétány 1/A, 1117 Budapest, Hungary
| | - Anikó Gaál
- grid.425578.90000 0004 0512 3755Institute of Materials and Environmental Chemistry, Research Centre for Natural Sciences (RCNS), Magyar tudósok körútja 2, 1117 Budapest, Hungary
| | - Imola Csilla Szigyártó
- grid.425578.90000 0004 0512 3755Institute of Materials and Environmental Chemistry, Research Centre for Natural Sciences (RCNS), Magyar tudósok körútja 2, 1117 Budapest, Hungary
| | - Róbert Deák
- grid.425578.90000 0004 0512 3755Institute of Materials and Environmental Chemistry, Research Centre for Natural Sciences (RCNS), Magyar tudósok körútja 2, 1117 Budapest, Hungary
| | - Tamás Beke-Somfai
- grid.425578.90000 0004 0512 3755Institute of Materials and Environmental Chemistry, Research Centre for Natural Sciences (RCNS), Magyar tudósok körútja 2, 1117 Budapest, Hungary
| | - Kitti Koprivanacz
- grid.425578.90000 0004 0512 3755Institute of Enzymology, Research Centre for Natural Sciences (RCNS), Magyar tudósok körútja 2, 1117 Budapest, Hungary
| | - Tünde Juhász
- grid.425578.90000 0004 0512 3755Institute of Materials and Environmental Chemistry, Research Centre for Natural Sciences (RCNS), Magyar tudósok körútja 2, 1117 Budapest, Hungary
| | - Attila Bóta
- grid.425578.90000 0004 0512 3755Institute of Materials and Environmental Chemistry, Research Centre for Natural Sciences (RCNS), Magyar tudósok körútja 2, 1117 Budapest, Hungary
| | - Zoltán Varga
- Institute of Materials and Environmental Chemistry, Research Centre for Natural Sciences (RCNS), Magyar tudósok körútja 2, 1117, Budapest, Hungary.
| | - Judith Mihály
- Institute of Materials and Environmental Chemistry, Research Centre for Natural Sciences (RCNS), Magyar tudósok körútja 2, 1117, Budapest, Hungary.
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