1
|
Pensini E, Meszaros P, Kashlan N, Marangoni AG, Laredo T, Gregori S, Ghazani SM, van der Zalm J, Chen A. Ferroelectric hydrogels from amino acids and oleic acid. iScience 2024; 27:110601. [PMID: 39280610 PMCID: PMC11396064 DOI: 10.1016/j.isci.2024.110601] [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: 05/17/2024] [Revised: 07/10/2024] [Accepted: 07/25/2024] [Indexed: 09/18/2024] Open
Abstract
Ferroelectric bio-based materials with a high water content (≈90 wt %) were not previously developed. Here, we develop hydrogels containing ≈90 wt % water, amino acids (lysine and arginine) and oleic acid. The NH and CH groups of lysine hydrogen bond water, as shown by attenuated total reflectance-Fourier transform infrared spectroscopy, yielding electrically conductive solutions. Lysine also interacts with oleic acid, yielding hard materials with a lamellar crystal structure, as revealed by synchrotron small angle X-ray scattering. Polarized light microscopy and shear rheology show that aqueous mixtures of amino acids and oleic acid are birefringent gels. These gels have a columnar, hexagonal crystal structure with 54-85 wt % water, and a bi-continuous sponge crystal structure with 89 wt % water. They are piezoelectric, as demonstrated by cyclic voltammetry. Thus, they deform and undergo crystalline phase transitions when exposed to electric fields. The piezoelectric materials developed can find use in medical applications and clean energy harvesting.
Collapse
Affiliation(s)
- Erica Pensini
- School of Engineering, University of Guelph, 50 Stone Road East, Guelph, ON N1G 2W1, Canada
- Biophysics Interdepartmental Group (BIG), University of Guelph, 50 Stone Road East, Guelph, ON N1G 2W1, Canada
| | - Peter Meszaros
- School of Engineering, University of Guelph, 50 Stone Road East, Guelph, ON N1G 2W1, Canada
| | - Nour Kashlan
- School of Engineering, University of Guelph, 50 Stone Road East, Guelph, ON N1G 2W1, Canada
| | - Alejandro G Marangoni
- Biophysics Interdepartmental Group (BIG), University of Guelph, 50 Stone Road East, Guelph, ON N1G 2W1, Canada
- Food Science Department, University of Guelph, 50 Stone Road East, Guelph, ON N1G 2W1, Canada
| | - Thamara Laredo
- Chemistry Department, Lakehead University, 500 University Avenue, Orillia, ON L3V 0B9, Canada
| | - Stefano Gregori
- School of Engineering, University of Guelph, 50 Stone Road East, Guelph, ON N1G 2W1, Canada
| | - Saeed Mirzaee Ghazani
- Food Science Department, University of Guelph, 50 Stone Road East, Guelph, ON N1G 2W1, Canada
| | - Joshua van der Zalm
- Chemistry Department, University of Guelph, 50 Stone Road East, Guelph, ON N1G 2W1, Canada
| | - Aicheng Chen
- Chemistry Department, University of Guelph, 50 Stone Road East, Guelph, ON N1G 2W1, Canada
| |
Collapse
|
2
|
Klein E, Lesyuk R, Klinke C. Colloidal Quasi-2D Methylammonium Lead Bromide Perovskite Nanostructures with Tunable Shape and High Chemical Stability. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2024:e2405758. [PMID: 39286991 DOI: 10.1002/smll.202405758] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/06/2024] [Revised: 08/22/2024] [Indexed: 09/19/2024]
Abstract
Control over the lateral dimensions of colloidal nanostructures is a complex task which requires a deep understanding of the formation mechanism and reactivity in the corresponding systems. As a result, it provides a well-founded insight to the physical and chemical properties of these materials. In this work, the preparation of quasi-2D methylammonium lead bromide nanostripes and discuss the influence of some specific parameters on the morphology and stability of this material is demonstrated. The variation in the amount of the main ligand dodecylamine gives a large range of structures beginning with 3D brick-like particles at low concentrations, nanostripes at elevated and ultimately nanosheets at large concentrations. The amount of the co-ligand trioctylphosphine can alter the width of the nanostripe shape to a certain degree. The thickness can be adjusted by the amount of the second precursor methylammonium bromide. Additionally, insights are given for the suggested formation mechanism of these anisotropic structures as well as for stability against moisture at ambient conditions in comparison with differently synthesized nanosheet samples.
Collapse
Affiliation(s)
- Eugen Klein
- Institute of Physics, University of Rostock, Albert-Einstein-Straße 23, 18059, Rostock, Germany
| | - Rostyslav Lesyuk
- Institute of Physics, University of Rostock, Albert-Einstein-Straße 23, 18059, Rostock, Germany
- Pidstryhach Institute for applied problems of mechanics and mathematics of NAS of Ukraine, Naukowa str. 3b, Lviv, 79060, Ukraine
| | - Christian Klinke
- Institute of Physics, University of Rostock, Albert-Einstein-Straße 23, 18059, Rostock, Germany
- Department "Life, Light & Matter", University of Rostock, Albert-Einstein-Straße 25, 18059, Rostock, Germany
- Department of Chemistry, Swansea University - Singleton Park, Swansea, SA2 8PP, UK
| |
Collapse
|
3
|
Madawala C, Molina C, Kim D, Gamage DK, Sun M, Leibensperger RJ, Mehndiratta L, Lee J, Kaluarachchi CP, Kimble KA, Sandstrom G, Harb C, Dinasquet J, Malfatti F, Prather KA, Deane GB, Stokes MD, Lee C, Slade JH, Stone EA, Grassian VH, Tivanski AV. Effects of Wind Speed on Size-Dependent Morphology and Composition of Sea Spray Aerosols. ACS EARTH & SPACE CHEMISTRY 2024; 8:1609-1622. [PMID: 39166261 PMCID: PMC11331522 DOI: 10.1021/acsearthspacechem.4c00119] [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: 05/03/2024] [Revised: 07/02/2024] [Accepted: 07/05/2024] [Indexed: 08/22/2024]
Abstract
Variable wind speeds over the ocean can have a significant impact on the formation mechanism and physical-chemical properties of sea spray aerosols (SSA), which in turn influence their climate-relevant impacts. Herein, for the first time, we investigate the effects of wind speed on size-dependent morphology and composition of individual nascent SSA generated from wind-wave interactions of natural seawater within a wind-wave channel as a function of size and their particle-to-particle variability. Filter-based thermal optical analysis, atomic force microscopy (AFM), AFM infrared spectroscopy (AFM-IR), and scanning electron microscopy (SEM) were employed in this regard. This study focuses on SSA with sizes within 0.04-1.8 μm generated at two wind speeds: 10 m/s, representing a wind lull scenario over the ocean, and 19 m/s, indicative of the wind speeds encountered in stormy conditions. Filter-based measurements revealed a reduction of the organic mass fraction as the wind speed increases. AFM imaging at 20% relative humidity of individual SSA identified six main morphologies: prism-like, rounded, core-shell, rod, rod inclusion core-shell, and aggregates. At 10 m/s, most SSA were rounded, while at 19 m/s, core-shells became predominant. Based on AFM-IR, rounded SSA at both wind speeds had similar composition, mainly composed of aliphatic and oxygenated species, whereas the shells of core-shells displayed more oxygenated organics at 19 m/s and more aliphatic organics at 10 m/s. Collectively, our observations can be attributed to the disruption of the sea surface microlayer film structure at higher wind speeds. The findings reveal a significant impact of wind speed on morphology and composition of SSA, which should be accounted for accurate assessment of their climate effects.
Collapse
Affiliation(s)
- Chamika
K. Madawala
- Department
of Chemistry, University of Iowa, Iowa City, Iowa 52242, United States
| | - Carolina Molina
- Department
of Chemistry and Biochemistry, University
of California San Diego, La Jolla, California 92093, United States
| | - Deborah Kim
- Department
of Chemistry and Biochemistry, University
of California San Diego, La Jolla, California 92093, United States
| | | | - Mengnan Sun
- Department
of Chemistry, University of Iowa, Iowa City, Iowa 52242, United States
| | - Raymond J. Leibensperger
- Scripps
Institution of Oceanography, University
of California San Diego, La Jolla, California 92093, United States
| | - Lincoln Mehndiratta
- Department
of Chemistry and Biochemistry, University
of California San Diego, La Jolla, California 92093, United States
| | - Jennie Lee
- Department
of Chemistry and Biochemistry, University
of California San Diego, La Jolla, California 92093, United States
| | | | - Ke’La A. Kimble
- Department
of Chemistry and Biochemistry, University
of California San Diego, La Jolla, California 92093, United States
| | - Greg Sandstrom
- Scripps
Institution of Oceanography, University
of California San Diego, La Jolla, California 92093, United States
| | - Charbel Harb
- Scripps
Institution of Oceanography, University
of California San Diego, La Jolla, California 92093, United States
| | - Julie Dinasquet
- Scripps
Institution of Oceanography, University
of California San Diego, La Jolla, California 92093, United States
| | - Francesca Malfatti
- Scripps
Institution of Oceanography, University
of California San Diego, La Jolla, California 92093, United States
- Department
of Life Science, Universita’ degli
Studi di Trieste, Trieste 34127, Italy
| | - Kimberly A. Prather
- Department
of Chemistry and Biochemistry, University
of California San Diego, La Jolla, California 92093, United States
- Scripps
Institution of Oceanography, University
of California San Diego, La Jolla, California 92093, United States
| | - Grant B. Deane
- Scripps
Institution of Oceanography, University
of California San Diego, La Jolla, California 92093, United States
| | - M. Dale Stokes
- Scripps
Institution of Oceanography, University
of California San Diego, La Jolla, California 92093, United States
| | - Christopher Lee
- Scripps
Institution of Oceanography, University
of California San Diego, La Jolla, California 92093, United States
| | - Jonathan H. Slade
- Department
of Chemistry and Biochemistry, University
of California San Diego, La Jolla, California 92093, United States
| | - Elizabeth A. Stone
- Department
of Chemistry, University of Iowa, Iowa City, Iowa 52242, United States
| | - Vicki H. Grassian
- Department
of Chemistry and Biochemistry, University
of California San Diego, La Jolla, California 92093, United States
| | - Alexei V. Tivanski
- Department
of Chemistry, University of Iowa, Iowa City, Iowa 52242, United States
| |
Collapse
|
4
|
Muijlwijk K, Feitsma AL, Kloek W. Using FT-IR as a fast method to measure fatty acid soaps in in vivo and in vitro digests. ANALYTICAL METHODS : ADVANCING METHODS AND APPLICATIONS 2024; 16:4636-4643. [PMID: 38940534 DOI: 10.1039/d4ay00177j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/29/2024]
Abstract
The objective of the current study was to develop a simple method to measure fatty acid soaps, making use of FT-IR, representative for the soap formation observed in clinical trials. Calcium soaps have a unique coordination which leads to a typical double-splitting of the antisymmetric and symmetric carboxylate peaks. Absorbance values of these carboxylate peaks were used together with the absorbance of the hydrocarbon -CH2 antisymmetric and symmetric peaks to calculate the calcium soap absorbance. Based on the linear correlation between the calcium soap absorbance and the calcium soap concentration measured with GC-FID, a model was set-up and subsequently successfully validated to quantify calcium soap concentrations in faecal samples from clinical trials with this FT-IR method. With in vivo as well as in vitro digestion an inverse correlation between the long chain saturated fatty acid part of milk fat containing fat blends used for the infant formulas, and the formation of fatty acid soaps after digestion and defaecation could be observed. There is a clear link between the amount of long chain saturated fatty acids at the sn-1/3 position and their release as free fatty acid after lipolysis with the appearance of fatty acid soaps. These insights enable future development of fat blends for infant nutrition to optimize fatty acid soap formation and thereby gut discomfort in infants. These insights can be used to predict the soap formation capacity of a newly designed fat blend and thereby the improvement of infant nutrition products.
Collapse
Affiliation(s)
- Kelly Muijlwijk
- FrieslandCampina, Stationsplein 1, 3818 LE Amersfoort, the Netherlands.
| | - Anouk L Feitsma
- FrieslandCampina, Stationsplein 1, 3818 LE Amersfoort, the Netherlands.
| | - William Kloek
- FrieslandCampina, Stationsplein 1, 3818 LE Amersfoort, the Netherlands.
| |
Collapse
|
5
|
McIntosh O, García-Florentino C, Fornaro T, Marabello D, Alberini A, Siljeström S, Biczysko M, Szopa C, Brucato J. Undecanoic Acid and L-Phenylalanine in Vermiculite: Detection, Characterization, and UV Degradation Studies for Biosignature Identification on Mars. ASTROBIOLOGY 2024; 24:518-537. [PMID: 38669050 DOI: 10.1089/ast.2023.0088] [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: 05/22/2024]
Abstract
Solar radiation that arrives on the surface of Mars interacts with organic molecules present in the soil. The radiation can degrade or transform the organic matter and make the search for biosignatures on the planet's surface difficult. Therefore, samples to be analyzed by instruments on board Mars probes for molecular content should be selectively chosen to have the highest organic preservation content. To support the identification of organic molecules on Mars, the behavior under UV irradiation of two organic compounds, undecanoic acid and L-phenylalanine, in the presence of vermiculite and two chloride salts, NaCl and MgCl, was studied. The degradation of the molecule's bands was monitored through IR spectroscopy. Our results show that, while vermiculite acts as a photoprotective mineral with L-phenylalanine, it catalyzes the photodegradation of undecanoic acid molecules. On the other hand, both chloride salts studied decreased the degradation of both organic species acting as photoprotectors. While these results do not allow us to conclude on the preservation capabilities of vermiculite, they show that places where chloride salts are present could be good candidates for in situ analytic experiments on Mars due to their organic preservation capacity under UV radiation.
Collapse
Affiliation(s)
- Ophélie McIntosh
- LATMOS/IPSL, UVSQ Université Paris-Saclay, Sorbonne Université, CNRS, Guyancourt, France
- INAF - Astrophysical Observatory of Arcetri, Firenze, Italy
| | - Cristina García-Florentino
- INAF - Astrophysical Observatory of Arcetri, Firenze, Italy
- Department of Analytical Chemistry, University of the Basque Country UPV/EHU, Bilbao, Spain
| | - Teresa Fornaro
- INAF - Astrophysical Observatory of Arcetri, Firenze, Italy
| | - Domenica Marabello
- Department of Chemistry, University of Torino, Torino, Italy
- Interdepartmental Center for Crystallography, University of Torino, Torino, Italy
| | | | - Sandra Siljeström
- Department of Methodology, Textiles and Medical Technology, RISE Research Institutes of Sweden, Stockholm, Sweden
| | - Malgorzata Biczysko
- International Centre for Quantum and Molecular Structures, Physics Department, College of Science, Shanghai University, Shanghai, China
| | - Cyril Szopa
- LATMOS/IPSL, UVSQ Université Paris-Saclay, Sorbonne Université, CNRS, Guyancourt, France
| | - John Brucato
- INAF - Astrophysical Observatory of Arcetri, Firenze, Italy
| |
Collapse
|
6
|
Zhao L, Zaborowski E, Bordoloi S, Rajagopalan N, Sharma BK, Baroi C, Xing W, Zhang L. Characterization of novel polysulfide polymer coated fly ash and its application in mitigating diffusion of contaminants. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2024; 347:123706. [PMID: 38467367 DOI: 10.1016/j.envpol.2024.123706] [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: 12/25/2023] [Revised: 02/17/2024] [Accepted: 03/02/2024] [Indexed: 03/13/2024]
Abstract
Fly ash consists of a considerable amount of hazardous elements with high mobility, posing substantial environmental risks during storage in surface impoundments and landfills. This hinders its efficient reuse in construction or material industries. To enhance the versatility of fly ash applications, a novel surface modification technique, termed SuMo, has been developed to create a hydrophobic polysulfide polymer coating on the surface of fly ash particles. The physicochemical properties of SuMo fly ash samples were examined using atomic force microscopy (AFM), environmental scanning electron microscopy (ESEM), thermal gravimetric analysis (TGA), Fourier Transform Infrared spectroscopy (FTIR), and leaching of hazardous elements was tested under practical environmental conditions (pH 4-12) based on the EPA's leaching environmental assessment framework (LEAF). The successful coating of polysulfide polymer on fly ash surface was verified through an increased percentage of C, S, and O in elemental mapping, coupled with the identification of S-O, CO, and C-H functional groups consistent with the chemical structure of polysulfide polymer. While the SuMo fly ash particles maintained their spherical shape, they exhibited increased surface roughness, robust hydrophobicity, and thermal stability up to 250 °C. Notably, owing to the coating's resilience against water leaching, the SuMo fly ash demonstrated a substantial reduction (up to 60-fold) in leachate concentrations of multiple concerning elements, including B, Be, Ba, Mn, Zn, As, Cr, Hg, etc., under various pH conditions compared to the uncoated fly ash. Furthermore, the polysulphide polymer coating effectively prevented Hg volatilization from fly ash below 163 °C. This study highlights the efficacy of the developed polysulfide polymer coating in mitigating the diffusion of hazardous elements from fly ash, thereby enhancing its potential reutilization in material, construction, and agriculture industries.
Collapse
Affiliation(s)
- L Zhao
- Prairie Research Institute-Illinois Sustainable Technology Centre, University of Illinois at Urbana Champaign, USA.
| | - E Zaborowski
- Prairie Research Institute-Illinois Sustainable Technology Centre, University of Illinois at Urbana Champaign, USA.
| | - S Bordoloi
- School of Engineering, Aalto University, Finland.
| | - N Rajagopalan
- Prairie Research Institute-Illinois Sustainable Technology Centre, University of Illinois at Urbana Champaign, USA.
| | - B K Sharma
- United States Department of Agriculture, Agricultural Research Service Eastern Regional Research Center, Wyndmoor, PA, USA.
| | - C Baroi
- Prairie Research Institute-Illinois Sustainable Technology Centre, University of Illinois at Urbana Champaign, USA.
| | - W Xing
- Chemistry and Environmental Science, New Jersey Institute of Technology, USA.
| | - L Zhang
- Chemistry and Environmental Science, New Jersey Institute of Technology, USA.
| |
Collapse
|
7
|
Segneanu AE, Vlase G, Vlase T, Ciocalteu MV, Bejenaru C, Buema G, Bejenaru LE, Boia ER, Dumitru A, Boia S. Romanian Wild-Growing Chelidonium majus-An Emerging Approach to a Potential Antimicrobial Engineering Carrier System Based on AuNPs: In Vitro Investigation and Evaluation. PLANTS (BASEL, SWITZERLAND) 2024; 13:734. [PMID: 38475580 DOI: 10.3390/plants13050734] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/24/2024] [Revised: 02/21/2024] [Accepted: 03/01/2024] [Indexed: 03/14/2024]
Abstract
Novel nanotechnology based on herbal products aspires to be a high-performing therapeutic platform. This study reports the development of an original engineering carrier system that jointly combines the pharmacological action of Chelidonium majus and AuNPs, with unique properties that ensure that the limitations imposed by low stability, toxicity, absorption, and targeted and prolonged release can be overcome. The metabolite profile of Romanian wild-grown Chelidonium majus contains a total of seventy-four phytochemicals belonging to eight secondary metabolite categories, including alkaloids, amino acids, phenolic acids, flavonoids, carotenoids, fatty acids, sterols, and miscellaneous others. In this study, various techniques (XRD, FTIR, SEM, DLS, and TG/DTG) were employed to investigate his new carrier system's morpho-structural and thermal properties. In vitro assays were conducted to evaluate the antioxidant potential and release profile. The results indicate 99.9% and 94.4% dissolution at different pH values for the CG-AuNPs carrier system and 93.5% and 85.26% for greater celandine at pH 4 and pH 7, respectively. Additionally, three in vitro antioxidant assays indicated an increase in antioxidant potential (flavonoid content 3.8%; FRAP assay 24.6%; and DPPH 24.4%) of the CG-AuNPs carrier system compared to the herb sample. The collective results reflect the system's promising perspective as a new efficient antimicrobial and anti-inflammatory candidate with versatile applications, ranging from target delivery systems, oral inflammation (periodontitis), and anti-age cosmetics to extending the shelf lives of products in the food industry.
Collapse
Affiliation(s)
- Adina-Elena Segneanu
- Institute for Advanced Environmental Research-West, University of Timisoara (ICAM-WUT), Oituz nr. 4, 300223 Timisoara, Romania
| | - Gabriela Vlase
- Institute for Advanced Environmental Research-West, University of Timisoara (ICAM-WUT), Oituz nr. 4, 300223 Timisoara, Romania
- Research Center for Thermal Analysis for Environmental Problems, West University of Timisoara, Pestalozzi St. 16, 300115 Timisoara, Romania
| | - Titus Vlase
- Institute for Advanced Environmental Research-West, University of Timisoara (ICAM-WUT), Oituz nr. 4, 300223 Timisoara, Romania
- Research Center for Thermal Analysis for Environmental Problems, West University of Timisoara, Pestalozzi St. 16, 300115 Timisoara, Romania
| | - Maria-Viorica Ciocalteu
- Faculty of Pharmacy, University of Medicine and Pharmacy Craiova, St. Petru Rareș 2, 200349 Craiova, Romania
| | - Cornelia Bejenaru
- Faculty of Pharmacy, University of Medicine and Pharmacy Craiova, St. Petru Rareș 2, 200349 Craiova, Romania
| | - Gabriela Buema
- National Institute of Research and Development for Technical Physics, 47 Mangeron Blvd., 700050 Iasi, Romania
| | - Ludovic Everard Bejenaru
- Faculty of Pharmacy, University of Medicine and Pharmacy Craiova, St. Petru Rareș 2, 200349 Craiova, Romania
| | - Eugen Radu Boia
- Department of Ear, Nose, and Throat, Faculty of Medicine, "Victor Babeș" University of Medicine and Pharmacy Timisoara, 2 Eftimie Murgu Sq., 300041 Timisoara, Romania
| | - Andrei Dumitru
- Faculty of Sciences, Physical Education and Informatics-Department of Medical Assistance and Physiotherapy, National University for Science and Technology Politehnica Bucharest, University Center of Pitesti, St. Targu din Vale 1, 110040 Pitesti, Romania
| | - Simina Boia
- Department of Periodontology, Faculty of Dental Medicine, Anton Sculean Research Center for Periodontal and Peri-Implant Diseases, "Victor Babeș" University of Medicine and Pharmacy Timisoara, 2 Eftimie Murgu Sq., 300041 Timisoara, Romania
| |
Collapse
|
8
|
Segneanu AE, Vlase G, Vlase T, Bita A, Bejenaru C, Buema G, Bejenaru LE, Dumitru A, Boia ER. An Innovative Approach to a Potential Neuroprotective Sideritis scardica-Clinoptilolite Phyto-Nanocarrier: In Vitro Investigation and Evaluation. Int J Mol Sci 2024; 25:1712. [PMID: 38338989 PMCID: PMC10855864 DOI: 10.3390/ijms25031712] [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: 12/23/2023] [Revised: 01/25/2024] [Accepted: 01/27/2024] [Indexed: 02/12/2024] Open
Abstract
The cutting-edge field of nanomedicine combines the power of medicinal plants with nanotechnology to create advanced scaffolds that boast improved bioavailability, biodistribution, and controlled release. In an innovative approach to performant herb nanoproducts, Sideritis scardica Griseb and clinoptilolite were used to benefit from the combined action of both components and enhance the phytochemical's bioavailability, controlled intake, and targeted release. A range of analytical methods, such as SEM-EDX, FT-IR, DLS, and XDR, was employed to examine the morpho-structural features of the nanoproducts. Additionally, thermal stability, antioxidant screening, and in vitro release were investigated. Chemical screening of Sideritis scardica Griseb revealed that it contains a total of ninety-one phytoconstituents from ten chemical categories, including terpenoids, flavonoids, amino acids, phenylethanoid glycosides, phenolic acids, fatty acids, iridoids, sterols, nucleosides, and miscellaneous. The study findings suggest the potential applications as a promising aspirant in neurodegenerative strategy.
Collapse
Affiliation(s)
- Adina-Elena Segneanu
- Institute for Advanced Environmental Research-West University of Timisoara (ICAM-WUT), Oituz nr.4, 300223 Timisoara, Romania; (G.V.); (T.V.)
| | - Gabriela Vlase
- Institute for Advanced Environmental Research-West University of Timisoara (ICAM-WUT), Oituz nr.4, 300223 Timisoara, Romania; (G.V.); (T.V.)
- Research Centre “Thermal Anal Environm Problems”, Institute for Advanced Environmental Research-West University of Timisoara (WUT), Pestalozzi St 16, 300115 Timisoara, Romania
| | - Titus Vlase
- Institute for Advanced Environmental Research-West University of Timisoara (ICAM-WUT), Oituz nr.4, 300223 Timisoara, Romania; (G.V.); (T.V.)
- Research Centre “Thermal Anal Environm Problems”, Institute for Advanced Environmental Research-West University of Timisoara (WUT), Pestalozzi St 16, 300115 Timisoara, Romania
| | - Andrei Bita
- Department of Pharmacognosy & Phytotherapy, Faculty of Pharmacy, University of Medicine and Pharmacy Craiova, St. Petru Rareș 2, 200349 Craiova, Romania; (A.B.)
| | - Cornelia Bejenaru
- Department of Pharmaceutical Botany, Faculty of Pharmacy, University of Medicine and Pharmacy Craiova, St. Petru Rareș 2, 200349 Craiova, Romania;
| | - Gabriela Buema
- National Institute of Research and Development for Technical Physics, 47 Mangeron Boulevard, 700050 Iasi, Romania;
| | - Ludovic Everard Bejenaru
- Department of Pharmacognosy & Phytotherapy, Faculty of Pharmacy, University of Medicine and Pharmacy Craiova, St. Petru Rareș 2, 200349 Craiova, Romania; (A.B.)
| | - Andrei Dumitru
- Faculty of Sciences, Physical Education and Informatics—Department of Medical Assistance and Physiotherapy, National University for Science and Technology Politehnica Bucharest, University Center of Pitesti, Targu din Vale 1, 110040 Pitesti, Romania;
| | - Eugen Radu Boia
- Department of Ear, Nose, and Throat, Faculty of Medicine, “Victor Babeș” University of Medicine and Pharmacy Timisoara, 2 Eftimie Murgu, 300041 Timisoara, Romania;
| |
Collapse
|
9
|
Chetta KE, Forconi M, Newton DA, Wagner CL, Baatz JE. HAMLET in human milk is resistant to digestion and carries essential free long chain polyunsaturated fatty acids and oleic acid. Food Chem 2023; 427:136752. [PMID: 37392621 PMCID: PMC10527475 DOI: 10.1016/j.foodchem.2023.136752] [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: 05/24/2023] [Revised: 06/19/2023] [Accepted: 06/26/2023] [Indexed: 07/03/2023]
Abstract
The oleic acid/alpha-lactalbumin complex HAMLET (human alpha-lactalbumin made lethal to tumors) is cytotoxic to various cancerous cell lines and is assembled from alpha-lactalbumin (ALA) and free oleic acid (OA). HAMLET is also cytotoxic to normal immature intestinal cells. It remains unclear if HAMLET, experimentally assembled with OA and heat, can spontaneously assemble in frozen human milk over time. To approach this issue, we used a set of timed proteolytic experiments to evaluate the digestibility of HAMLET and native ALA. The purity of HAMLET in human milk was confirmed by ultra high performance liquid chromatography coupled to tandem mass spectrometry and western blot to resolve the ALA and OA components. Timed proteolytic experiments were used to identify HAMLET in whole milk samples. Structural characterization of HAMLET was performed by Fournier transformed infrared spectroscopy and indicated a transformation of secondary structure with increased alpha-helical character of ALA upon binding to OA.
Collapse
Affiliation(s)
- Katherine E Chetta
- Department of Pediatrics, C.P. Darby Children's Research Institute, Medical University of South Carolina, Charleston, SC, United States; Department of Pediatrics, Division of Neonatal-Perinatal Medicine, Medical University of South Carolina, Shawn Jenkins Children's Hospital, 10 McClennan Banks Drive, MSC 915, Charleston, SC 29425, United States.
| | - Marcello Forconi
- Department of Chemistry and Biochemistry, College of Charleston, Charleston, SC, United States
| | - Danforth A Newton
- Department of Pediatrics, C.P. Darby Children's Research Institute, Medical University of South Carolina, Charleston, SC, United States; Department of Pediatrics, Division of Neonatal-Perinatal Medicine, Medical University of South Carolina, Shawn Jenkins Children's Hospital, 10 McClennan Banks Drive, MSC 915, Charleston, SC 29425, United States
| | - Carol L Wagner
- Department of Pediatrics, C.P. Darby Children's Research Institute, Medical University of South Carolina, Charleston, SC, United States; Department of Pediatrics, Division of Neonatal-Perinatal Medicine, Medical University of South Carolina, Shawn Jenkins Children's Hospital, 10 McClennan Banks Drive, MSC 915, Charleston, SC 29425, United States
| | - John E Baatz
- Department of Pediatrics, C.P. Darby Children's Research Institute, Medical University of South Carolina, Charleston, SC, United States; Department of Pediatrics, Division of Neonatal-Perinatal Medicine, Medical University of South Carolina, Shawn Jenkins Children's Hospital, 10 McClennan Banks Drive, MSC 915, Charleston, SC 29425, United States
| |
Collapse
|
10
|
Chura SSD, Memória KAS, Lopes AT, Pelissari FM, Da Silveira JVW, Bezerra JDA, Chaves FCM, Rodrigues AP, Faria JAQA, Carneiro G. Red sacaca essential oil-loaded nanostructured lipid carriers optimized by factorial design: cytotoxicity and cellular reactive oxygen species levels. Front Pharmacol 2023; 14:1176629. [PMID: 37886132 PMCID: PMC10598706 DOI: 10.3389/fphar.2023.1176629] [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: 02/28/2023] [Accepted: 09/29/2023] [Indexed: 10/28/2023] Open
Abstract
Amazonian flora includes several species with the potential to develop pharmaceutical and biotechnological products. The essential oils from Amazonian species possess some biological properties, such as antioxidant, antibacterial, and cytotoxic activities. The essential oil of red sacaca (RSO), Croton cajucara Benth., contains metabolites characterized by antioxidant and anti-inflammatory activities. Nanostructured lipid carriers (NLC) are an advantageous alternative for the effective delivery of drugs because they can solubilize lipophilic actives and reduce their cytotoxicity. This study aimed to optimize the synthesis of RSO-loaded nanostructured lipid carriers (NLC-RSO) using a 23 factorial design and investigate their antioxidant and cytotoxic effects. The red sacaca essential oil (RSO) metabolite profile was characterized using gas chromatography coupled with a mass spectrometer (GC-MS), identifying 33 metabolites, with linalool and 7-hydroxy-calamenene as the major ones, as reported in the literature. The optimized NLC-RSO formulation had a particle size less than 100 nm and a polydispersity index lower than 0.25. After characterizing NLC-RSO using Fourier-transform infrared spectroscopy, powder X-ray diffraction, zeta potential, moisture content, and wettability, in vitro cytotoxicity were performed in A549 and BEAS-2B cell lines using the resazurin metabolism assay. The data indicated a lower IC50 for RSO than for NLC-RSOs in both cell lines. Furthermore, low cytotoxicity of blank nanoparticles (blank NP) and medium chain triglycerides-loaded nanostructured lipid carriers (NLC-MCT) towards both pulmonary cell lines was noted. At a concentration of 50-100 μg/mL, free RSO exhibited higher cytotoxicity than NLC-RSO, demonstrating the protective effect of this lipid carrier in reducing cytotoxicity during metabolite delivery. Similarly, free RSO showed higher 2,2-diphenyl-1-picrylhydrazyl (DPPH) radical scavenging than NLC-RSO, also indicating this protective effect. The 2',7'-dichlorofluorescein diacetate (DCFH-DA) intracellular reactive oxygen species (ROS) level assay did not show differences between the treatments at higher but non-cytotoxic dosages. Taken together, our results suggest that NLC-RSOs are potential RSO delivery systems for applications related to cancer treatment.
Collapse
Affiliation(s)
- Sofia Santos Donaire Chura
- Department of Pharmacy, Faculty of Biological and Health Sciences, Federal University of Jequitinhonha and Mucuri Valleys, Diamantina, Brazil
| | | | - Amanda Tibães Lopes
- Institute of Science and Technology, Federal University of Jequitinhonha and Mucuri Valleys, Diamantina, Brazil
| | - Franciele Maria Pelissari
- Institute of Science and Technology, Federal University of Jequitinhonha and Mucuri Valleys, Diamantina, Brazil
| | | | - Jaqueline de Araújo Bezerra
- Federal Institute of Education, Science and Technology of Amazonas (IFAM), IFAM Analytical Center, Manaus Centro Campus, Manaus, Brazil
| | | | - Ana Paula Rodrigues
- Department of Pharmacy, Faculty of Biological and Health Sciences, Federal University of Jequitinhonha and Mucuri Valleys, Diamantina, Brazil
| | | | - Guilherme Carneiro
- Department of Pharmacy, Faculty of Biological and Health Sciences, Federal University of Jequitinhonha and Mucuri Valleys, Diamantina, Brazil
| |
Collapse
|
11
|
Astolfi ML. Advances in Analytical Strategies to Study Cultural Heritage Samples. Molecules 2023; 28:6423. [PMID: 37687253 PMCID: PMC10489939 DOI: 10.3390/molecules28176423] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2023] [Accepted: 08/25/2023] [Indexed: 09/10/2023] Open
Abstract
The advancements of civilization are based on our ability to pass on the events and knowledge of the past so that the next generations can start from an ever-higher level of expertise [...].
Collapse
Affiliation(s)
- Maria Luisa Astolfi
- Department of Chemistry, Sapienza University of Rome, Piazzale Aldo Moro 5, 00185 Rome, Italy;
- Research Center for Applied Sciences to the Safeguard of Environment and Cultural Heritage (CIABC), Sapienza University of Rome, Piazzale Aldo Moro 5, 00185 Rome, Italy
| |
Collapse
|
12
|
Banou P, Boyatzis S, Choulis K, Theodorakopoulos C, Alexopoulou A. Oil Media on Paper: Investigating the Interaction of Cold-Pressed Linseed Oil with Paper Supports with FTIR Analysis. Polymers (Basel) 2023; 15:polym15112567. [PMID: 37299366 DOI: 10.3390/polym15112567] [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: 03/07/2023] [Revised: 05/30/2023] [Accepted: 05/31/2023] [Indexed: 06/12/2023] Open
Abstract
Previous works of the authors have presented the changes in the optical, mechanical, and chemical properties of the oiled areas of the supports that occur upon ageing due to oil-binder absorption in works of art on paper and printed material. In this framework, transmittance FTIR analysis has indicated that the presence of linseed oil induces the conditions to promote the deterioration of the oil-impregnated areas of the paper supports. However, the analysis of oil-impregnated mock-ups did not provide detailed information about the input of linseed oil formulations and the different types of paper support on the chemical changes that occur upon ageing. This work presents the results of ATR-FTIR and reflectance FTIR, which were used for compensating the previous results, proving indications on the effect of different materials (linseed oil formulations, and cellulosic and lignocellulosic papers) on the development of chemical changes, thus, on the condition of the oiled areas upon ageing. Although linseed oil formulations have a determining effect on the condition of the oiled areas of the support, the paper pulp content appears to have an input to the chemical changes that occur in the system of paper-linseed oil upon ageing. The results presented are more focused on the oil-impregnated mock-ups with cold-pressed linseed oil since results have indicated that this causes more extended changes upon ageing.
Collapse
Affiliation(s)
- Penelope Banou
- Department of Conservation of Antiquities and Works of Art, University of West Attica, Egaleo, 12243 Athens, Greece
- Department of Arts, Northumbria University, Newcastle, Newcastle upon Tyne NE1 8ST, UK
| | - Stamatis Boyatzis
- Department of Conservation of Antiquities and Works of Art, University of West Attica, Egaleo, 12243 Athens, Greece
| | - Konstantinos Choulis
- Department of Conservation of Antiquities and Works of Art, University of West Attica, Egaleo, 12243 Athens, Greece
| | | | - Athena Alexopoulou
- Department of Conservation of Antiquities and Works of Art, University of West Attica, Egaleo, 12243 Athens, Greece
| |
Collapse
|
13
|
Farcas IA, Dippong T, Petean I, Moldovan M, Filip MR, Ciotlaus I, Tudoran LB, Borodi G, Paltinean GA, Pripon E, Bunea CI. Material Evidence of Sediments Recovered from Ancient Amphorae Found at the Potaissa Roman Fortress. MATERIALS (BASEL, SWITZERLAND) 2023; 16:2628. [PMID: 37048922 PMCID: PMC10095784 DOI: 10.3390/ma16072628] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 02/22/2023] [Revised: 03/24/2023] [Accepted: 03/24/2023] [Indexed: 06/19/2023]
Abstract
Methods for material investigation are powerful tools that allow specialists to elucidate important aspects regarding ancient artifacts such as the Roman amphorae deposits discovered at Potaissa Fortress in Turda, Romania. Archeological debate states that the deposit contained olive oil and wine amphorae, but no material evidence has been presented until now. The current research is focused on the most representative large amphora fragments found in the Potaissa deposit, with a significant amount of sediment on their walls, to give archeologists the material proof to elucidate their debate. Sediment was collected from each fragment and subjected to complex analysis. XRD investigation combined with cross-polarized light microscopy demonstrated mineral particles such as quartz, clay (muscovite and traces of biotite), and calcite. Quartz and calcite particles have a rounded shape and diameters in a range of 20-200 µm, and clay particles have a lamellar shape and dimensions from 1 to 20 µm, a fact confirmed by SEM microscopy. Sample 2 presented a large amount of amorphous phase followed by Samples 1 and 3, with a low amount of organic phase. FTIR investigation confirms organic phase presence owing to strong absorption bands regarding C-H, C=O, and O-H chemical bonds related to aliphatic compounds in Sample 2, and to some decayed wine residue in Samples 1 and 3. EDS elemental analysis was used for organic particle identification in the amphora sediments and to obtain a correlation with their microstructure. GC-MS investigation showed volatile compounds related to wine residue for Samples 1 and 3 and decomposed fats for Sample 2. Tartaric and malic acid were identified by HPLC in Samples 1 and 3, which are wine biomarkers. The correlation of all experimental results concludes with no doubt that Amphora 2 contained olive oil and Amphorae 1 and 3 contained wine in ancient times.
Collapse
Affiliation(s)
- Iulia Alexandra Farcas
- Faculty of Horticulture and Rural Business Development, University of Agricultural Sciences and Veterinary Medicine, 3-5Manastur Str., 400372 Cluj-Napoca, Romania
| | - Thomas Dippong
- Faculty of Science, Technical University of Cluj-Napoca, 76 Victoriei Street, 430122 Baia Mare, Romania
| | - Ioan Petean
- Faculty of Chemistry and Chemical Engineering, Babes-Bolyai University, 11 Arany Janos Street, 400028 Cluj-Napoca, Romania
| | - Marioara Moldovan
- Department of Polymer Composites, Institute of Chemistry “Raluca Ripan”, Babes-Bolyai University, 30 Fantanele Street, 400294 Cluj-Napoca, Romania
| | - Miuta Rafila Filip
- Department of Polymer Composites, Institute of Chemistry “Raluca Ripan”, Babes-Bolyai University, 30 Fantanele Street, 400294 Cluj-Napoca, Romania
| | - Irina Ciotlaus
- Department of Organic Compounds and Natural Products, Institute of Chemistry “Raluca Ripan”, Babes-Bolyai University, 30 Fantanele Street, 400294 Cluj-Napoca, Romania
| | - Lucian Barbu Tudoran
- Faculty of Biology and Geology, Babes-Bolyai University, 44 Gheorghe Bilaşcu Street, 400015 Cluj-Napoca, Romania
- National Institute for Research and Development of Isotopic and Molecular Technologies, 65-103 Donath Street, 400293 Cluj-Napoca, Romania
| | - Gheorghe Borodi
- National Institute for Research and Development of Isotopic and Molecular Technologies, 65-103 Donath Street, 400293 Cluj-Napoca, Romania
| | - Gertrud Alexandra Paltinean
- Department of Polymer Composites, Institute of Chemistry “Raluca Ripan”, Babes-Bolyai University, 30 Fantanele Street, 400294 Cluj-Napoca, Romania
| | - Emanoil Pripon
- Zalau County Museum of History and Art, 9 Unirii Str., 450042 Zalau, Romania
| | - Claudiu Ioan Bunea
- Faculty of Horticulture and Rural Business Development, University of Agricultural Sciences and Veterinary Medicine, 3-5Manastur Str., 400372 Cluj-Napoca, Romania
| |
Collapse
|
14
|
Macchia A, Schuberthan LM, Ferro D, Colasanti IA, Montorsi S, Biribicchi C, Barbaccia FI, La Russa MF. Analytical Investigations of XIX-XX Century Paints: The Study of Two Vehicles from the Museum for Communications of Frankfurt. Molecules 2023; 28:2197. [PMID: 36903443 PMCID: PMC10005574 DOI: 10.3390/molecules28052197] [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: 11/29/2022] [Revised: 02/16/2023] [Accepted: 02/24/2023] [Indexed: 03/03/2023] Open
Abstract
Over the centuries, humans have developed different systems to protect surfaces from the influence of environmental factors. Protective paints are the most used ones. They have undergone considerable development over the years, especially at the turn of the 19th and 20th centuries. Indeed, between the two centuries, new binders and pigments have been introduced in the constituent materials of paints. The years in which these compounds have been introduced and spread in the paint market allow them to be defined as markers for the dating of paints and painted artifacts. The present work is focused on the study of the paints of two vehicles of the Frankfurt Museum of Communication, i.e., a carriage and a cart, that was designed for the German Postal and Telecommunications Service roughly between 1880 and 1920. The characterization of the paints was performed through in situ non-invasive techniques, i.e., portable optical microscopy and multispectral imaging, and laboratory non-destructive techniques, i.e., FT-IR ATR spectroscopy and SEM-EDS. The analytical investigation and the comparison with the data reported in the literature allowed us to determine the historicity of the paints, which are all dated before the 1950s.
Collapse
Affiliation(s)
- Andrea Macchia
- YOCOCU (Youth in Conservation of Cultural Heritage), Via T. Tasso 108, 00185 Rome, Italy
| | | | - Daniela Ferro
- YOCOCU (Youth in Conservation of Cultural Heritage), Via T. Tasso 108, 00185 Rome, Italy
| | - Irene Angela Colasanti
- YOCOCU (Youth in Conservation of Cultural Heritage), Via T. Tasso 108, 00185 Rome, Italy
| | - Stefania Montorsi
- YOCOCU (Youth in Conservation of Cultural Heritage), Via T. Tasso 108, 00185 Rome, Italy
| | - Chiara Biribicchi
- YOCOCU (Youth in Conservation of Cultural Heritage), Via T. Tasso 108, 00185 Rome, Italy
| | | | - Mauro Francesco La Russa
- Department of Biology, Ecology and Earth Sciences DIBEST, University of Calabria, Via Pietro Bucci, Arcavacata, 87036 Rende, Italy
| |
Collapse
|
15
|
New Insights into the Medieval Hispano-Muslim Panel Painting: The Alfarje Found in a Balearic Casal (Spain). Molecules 2023; 28:molecules28031235. [PMID: 36770902 PMCID: PMC9921033 DOI: 10.3390/molecules28031235] [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: 12/29/2022] [Revised: 01/23/2023] [Accepted: 01/25/2023] [Indexed: 01/31/2023] Open
Abstract
Hispano-Muslim culture flourished during the Middle Ages in the Iberian Peninsula and Balearic Islands. During the restoration of a Balearic nobiliary building (casal), several panels with polychrome decoration on the back side were found. They were part of an old Muslim wooden ceiling (alfarje). A multi-technique strategy including optical microscopy, infrared and μRaman spectroscopies, field emission scanning electron microscopy-X-ray microanalysis (FESEM-EDX), focused ion beam (FIB-FESEM-EDX), atomic force microscopy nanoindentation (AFM-NI), and gas chromatography-mass spectrometry (GC-MS) has been applied in the analysis of these panel paintings and has provided morphological and compositional data that have led to the identification of the materials and artistic technique as well as the alteration mechanisms due to the natural aging and the adverse conditions of conservation. As a novelty, this study has confirmed the use of indigo as a blue pigment, an unusual material in Hispano-Muslim panel painting. Apart from the notable change in the visual appearance observed in the paintings, the study has also confirmed a change in the mechanical resistance in the paint layers. These changes have been induced by the combination of the chemical and microbiological alteration mechanisms identified.
Collapse
|
16
|
Sánchez-Osorno DM, Caicedo Paz AV, López-Jaramillo MC, Villa AL, Martínez-Galán JP. Protection of Mono and Polyunsaturated Fatty Acids from Grapeseed Oil by Spray Drying Using Green Biopolymers as Wall Material. Foods 2022; 11:3954. [PMID: 36553695 PMCID: PMC9778292 DOI: 10.3390/foods11243954] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2022] [Revised: 08/30/2022] [Accepted: 09/21/2022] [Indexed: 12/12/2022] Open
Abstract
One of the most common ways to protect oils is microencapsulation, which includes the use of encapsulating agents. Due to the environmental problems facing humanity, this study seeks to combine green biopolymers (microcrystalline cellulose and whey protein isolate) that function as encapsulating agents for grapeseed oil. Grapeseed oil that is obtained from agro-industrial waste has shown health benefits, including cardioprotective, anticancer, antimicrobial, and anti-inflammatory properties. These health benefits have been mainly associated with monounsaturated (MUFA) and polyunsaturated (PUFA) fatty acids. In this sense, it has been observed that grapeseed oil can be easily modified by environmental factors such as oxygen, high temperatures, and light, showing the instability and easy degradation of grapeseed oil. In this study, grapeseed oil was encapsulated using the spray-drying technique to conserve its lipidic profile. Powder recovery of the grapeseed oil microcapsules ranged from 65% to 70%. The encapsulation efficiency of the microcapsules varied between 80% and 85%. The FTIR analysis showed chemical interactions that demonstrate chemisorption between the grapeseed oil and the encapsulating material, while the SEM micrographs showed a correct encapsulation in a spherical shape. Gas chromatography showed that the lipid profile of grapeseed oil is preserved thanks to microencapsulation. Release tests showed 80% desorption within the first three hours at pH 5.8. Overall, whey protein and microcrystalline cellulose could be used as a wall material to protect grapeseed oil with the potential application of controlled delivery of fatty acids microcapsules.
Collapse
Affiliation(s)
- Diego Mauricio Sánchez-Osorno
- Grupo de Investigación Alimentación y Nutrición Humana-GIANH, Escuela de Nutrición y Dietética, Universidad de Antioquia, Cl. 67, No 53-108, Medellín 050010, Colombia
- Grupo de Investigación e Innovación Ambiental GIIAM, Institución Universitaria Pascual Bravo, Cl. 73, No 73a-226, Medellín 050034, Colombia
| | - Angie Vanesa Caicedo Paz
- Grupo de Investigación Alimentación y Nutrición Humana-GIANH, Escuela de Nutrición y Dietética, Universidad de Antioquia, Cl. 67, No 53-108, Medellín 050010, Colombia
| | - María Camila López-Jaramillo
- Grupo de Investigación e Innovación Ambiental GIIAM, Institución Universitaria Pascual Bravo, Cl. 73, No 73a-226, Medellín 050034, Colombia
| | - Aída Luz Villa
- Grupo Catálisis Ambiental, Universidad de Antioquia, Cl. 67, No 53-108, Medellín 050010, Colombia
| | - Julián Paul Martínez-Galán
- Grupo de Investigación Alimentación y Nutrición Humana-GIANH, Escuela de Nutrición y Dietética, Universidad de Antioquia, Cl. 67, No 53-108, Medellín 050010, Colombia
| |
Collapse
|
17
|
Rapid Assessment of Lipidomics Sample Purity and Quantity Using Fourier-Transform Infrared Spectroscopy. Biomolecules 2022; 12:biom12091265. [PMID: 36139104 PMCID: PMC9496531 DOI: 10.3390/biom12091265] [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: 07/21/2022] [Revised: 08/29/2022] [Accepted: 09/06/2022] [Indexed: 11/16/2022] Open
Abstract
Despite the increasing popularity of liquid chromatography−mass spectrometry (LC-MS)-based lipidomics, there is a lack of accepted and validated methods for lipid extract quality and quantity assessment prior to LC-MS. Fourier-Transform Infrared Spectroscopy (FTIR) has been reported for quantification of pure lipids. However, the impact of complex lipid sample complexity and purity on total lipid quantification accuracy has not been investigated. Here, we report comprehensive assessment of the sample matrix on the accuracy of lipid quantification using Attenuated Total Reflectance (ATR)-FTIR and establish a simple workflow for lipidomics sample quantification. We show that both pure and complex lipids show characteristic FTIR vibrations of CH- and C=O-stretching vibrations, with a quantitative range of 40−3000 ng and a limit of detection of 12 ng, but sample extraction method and local baseline subtraction during FTIR spectral processing significantly impact lipid quantification via CH stretching. To facilitate sample quality screening, we developed the Lipid Quality (LiQ) score from a spectral library of common contaminants, using a ratio of peak heights between CH stretching vibrations maxima and the collective vibrations from amide/amine, CH-stretching minima and sugar moieties. Taking all tested parameters together, we propose a rapid FTIR workflow for routine lipidomics sample quality and quantity assessment and tested this workflow by comparing to the total LC-MS intensity of targeted lipidomics of 107 human plasma lipid extracts. Exclusion of poor-quality samples based on LiQ score improved the correlation between FTIR and LC-MS quantification. The uncertainty of absolute quantification by FTIR was estimated using a 795 ng SPLASH LipidoMix standard to be <10%. With low sample requirement, we anticipate this simple and rapid method will enhance lipidomics workflow by enabling accurate total lipid quantification and normalization of lipid quantity for MS analysis.
Collapse
|
18
|
Putrawan IDGA, Indarto A, Octavia Y. Thermal stabilization of polyvinyl chloride by calcium and zinc carboxylates derived from byproduct of palm oil refining. Heliyon 2022; 8:e10079. [PMID: 36051272 PMCID: PMC9424953 DOI: 10.1016/j.heliyon.2022.e10079] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2022] [Revised: 06/03/2022] [Accepted: 07/21/2022] [Indexed: 11/07/2022] Open
Abstract
Calcium and zinc carboxylates were prepared from palm fatty acid distillate, a byproduct of palm oil refining, via metathesis in aqueous ethanol. The formations of both metal carboxylates have been confirmed by infrared spectroscopy and x-ray diffraction analysis. Thermogravimetric analysis has shown that the prepared calcium and zinc carboxylates are practically stable while their weight losses are 14% at 393 °C and 19% at 311 °C, respectively. The efficacy of the metal carboxylates in their mixtures in stabilizing polyvinyl chloride against heat has also been studied by using static and dynamic tests. The calcium to zinc ratio of 4:1 has been found to give the longest stability time under the studied condition. The mixed calcium/zinc carboxylates demonstrate a synergism effect with pentaerythritol. The results reveal that mixed calcium/zinc carboxylates from palm fatty acid distillate are effective in stabilizing polyvinyl chloride against heat. Ca/Zn carboxylate from PFAD is stable at the processing temperature of PVC. Mixed Ca/Zn carboxylate from PFAD is an effective PVC thermal stabilizer. PFAD offers a potential raw material for a mixed metal base thermal stabilizer.
Collapse
Affiliation(s)
- I Dewa Gede Arsa Putrawan
- Department of Chemical Engineering, Faculty of Industrial Technology, Institut Teknologi Bandung, Jalan Ganesha 10, Bandung 40132, Indonesia.,Chemical Engineering Product Design and Development Research Group, Faculty of Industrial Technology, Institut Teknologi Bandung, Jalan Ganesha 10, Bandung 40132, Indonesia
| | - Antonius Indarto
- Department of Chemical Engineering, Faculty of Industrial Technology, Institut Teknologi Bandung, Jalan Ganesha 10, Bandung 40132, Indonesia
| | - Yona Octavia
- Department of Chemical Engineering, Faculty of Industrial Technology, Institut Teknologi Bandung, Jalan Ganesha 10, Bandung 40132, Indonesia
| |
Collapse
|
19
|
Agarwal P, Nieuwoudt MK, Li S, Procter G, Andrews GP, Jones DS, Svirskis D. Exploiting Hydrogen Bonding to Enhance Lidocaine Loading and Stability in a Poly Ethylene-co-Vinyl acetate Carrier Matrix. Int J Pharm 2022; 621:121819. [DOI: 10.1016/j.ijpharm.2022.121819] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2022] [Revised: 05/06/2022] [Accepted: 05/07/2022] [Indexed: 10/18/2022]
|
20
|
Marceneiro S, Lobo I, Dias I, de Pinho E, M. A. Dias A, de Sousa HC. Eco-friendlier and sustainable natural-based additives for poly(vinyl chloride)-based composites. J IND ENG CHEM 2022. [DOI: 10.1016/j.jiec.2022.02.057] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
|