1
|
Nile A, Shin J, Shin J, Park GS, Lee S, Lee JH, Lee KW, Kim BG, Han SG, Saini RK, Oh JW. Cinnamaldehyde-Rich Cinnamon Extract Induces Cell Death in Colon Cancer Cell Lines HCT 116 and HT-29. Int J Mol Sci 2023; 24:ijms24098191. [PMID: 37175897 PMCID: PMC10178958 DOI: 10.3390/ijms24098191] [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: 03/11/2023] [Revised: 04/12/2023] [Accepted: 04/27/2023] [Indexed: 05/15/2023] Open
Abstract
Cinnamon is a natural spice with a wide range of pharmacological functions, including anti-microbial, antioxidant, and anti-tumor activities. The aim of this study is to investigate the effects of cinnamaldehyde-rich cinnamon extract (CRCE) on the colorectal cancer cell lines HCT 116 and HT-29. The gas chromatography mass spectrometry analysis of a lipophilic extract of cinnamon revealed the dominance of trans-cinnamaldehyde. Cells treated with CRCE (10-60 µg/mL) showed significantly decreased cell viability in a time- and dose-dependent manner. We also observed that cell proliferation and migration capacity were inhibited in CRCE-treated cells. In addition, a remarkable increase in the number of sub-G1-phase cells was observed with arrest at the G2 phase by CRCE treatment. CRCE also induced mitochondrial stress, and finally, CRCE treatment resulted in activation of apoptotic proteins Caspase-3, -9, and PARP and decreased levels of mu-2-related death-inducing gene protein expression with BH3-interacting domain death agonist (BID) activation.
Collapse
Affiliation(s)
- Arti Nile
- Department of Stem Cell and Regenerative Biotechnology, KIT, Konkuk University, 120 Neungdong-ro, Gwangjn-gu, Seoul 05029, Republic of Korea
| | - Jisoo Shin
- Department of Stem Cell and Regenerative Biotechnology, KIT, Konkuk University, 120 Neungdong-ro, Gwangjn-gu, Seoul 05029, Republic of Korea
| | - Juhyun Shin
- Department of Stem Cell and Regenerative Biotechnology, KIT, Konkuk University, 120 Neungdong-ro, Gwangjn-gu, Seoul 05029, Republic of Korea
| | - Gyun Seok Park
- Department of Stem Cell and Regenerative Biotechnology, KIT, Konkuk University, 120 Neungdong-ro, Gwangjn-gu, Seoul 05029, Republic of Korea
| | - Suhyun Lee
- Department of Stem Cell and Regenerative Biotechnology, KIT, Konkuk University, 120 Neungdong-ro, Gwangjn-gu, Seoul 05029, Republic of Korea
| | - Ji-Ho Lee
- Department of Crop Science, Konkuk University, Seoul 05029, Republic of Korea
| | - Kyung-Woo Lee
- Department of Animal Science and Technology, Konkuk University, Seoul 05029, Republic of Korea
| | - Beob Gyun Kim
- Department of Animal Science and Technology, Konkuk University, Seoul 05029, Republic of Korea
| | - Sung Gu Han
- Department of Food Science and Biotechnology of Animal Resources, Konkuk University, Seoul 05029, Republic of Korea
| | - Ramesh Kumar Saini
- Department of Crop Science, Konkuk University, Seoul 05029, Republic of Korea
| | - Jae-Wook Oh
- Department of Stem Cell and Regenerative Biotechnology, KIT, Konkuk University, 120 Neungdong-ro, Gwangjn-gu, Seoul 05029, Republic of Korea
| |
Collapse
|
2
|
Sztorch B, Nowak K, Frydrych M, Leśniewska J, Krysiak K, Przekop RE, Olejnik A. Improving the Dispersibility of TiO 2 in the Colloidal System Using Trifunctional Spherosilicates. MATERIALS (BASEL, SWITZERLAND) 2023; 16:1442. [PMID: 36837072 PMCID: PMC9963084 DOI: 10.3390/ma16041442] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/30/2022] [Revised: 01/20/2023] [Accepted: 02/03/2023] [Indexed: 06/18/2023]
Abstract
Titanium dioxide is a commonly used ingredient in cosmetics acting as a thickening agent and inorganic UV filter. However, TiO2 is difficult to disperse, which causes problems in spreading the formulations. The solution to this problem is to modify the titanium dioxide surface to change its properties by creation of the new type of hybrid inorganic-organic UV filter. Therefore, this study aimed to functionalize titanium dioxide with organosilicon compounds and determine how this modification will affect the dispersibility of TiO2 in the colloidal system and the stability of emulsions. First, the functionalized octaspherosilicates were obtained and characterized. Next, the synthesized compounds were applied as modifiers for titanium dioxide and were analyzed by FT-IR, UV-Vis, and laser diffraction. Furthermore, the hydrophilic-hydrophobic character was assessed by measuring the contact angle. The new materials were introduced into emulsions and the formulations were analyzed in terms of particle size distribution and stability by multiple light scattering. It was found that the modification of titanium dioxide with spherosilicates significantly improved both the stability of emulsion and the dispersibility of novel materials in the colloidal system compared to nonmodified TiO2. The covalent binding of the modifier with the titanium dioxide had an impact on the stability of the emulsion.
Collapse
Affiliation(s)
- Bogna Sztorch
- Centre for Advanced Technology, Adam Mickiewicz University Poznan, Uniwersytetu Poznańskiego 10, 61-614 Poznań, Poland
| | - Krzysztof Nowak
- Faculty of Chemistry, Adam Mickiewicz University Poznan, Uniwersytetu Poznańskiego 8, 61-614 Poznań, Poland
| | - Miłosz Frydrych
- Faculty of Chemistry, Adam Mickiewicz University Poznan, Uniwersytetu Poznańskiego 8, 61-614 Poznań, Poland
| | - Julia Leśniewska
- Centre for Advanced Technology, Adam Mickiewicz University Poznan, Uniwersytetu Poznańskiego 10, 61-614 Poznań, Poland
| | - Klaudia Krysiak
- Centre for Advanced Technology, Adam Mickiewicz University Poznan, Uniwersytetu Poznańskiego 10, 61-614 Poznań, Poland
| | - Robert E. Przekop
- Centre for Advanced Technology, Adam Mickiewicz University Poznan, Uniwersytetu Poznańskiego 10, 61-614 Poznań, Poland
| | - Anna Olejnik
- Centre for Advanced Technology, Adam Mickiewicz University Poznan, Uniwersytetu Poznańskiego 10, 61-614 Poznań, Poland
- Faculty of Chemistry, Adam Mickiewicz University Poznan, Uniwersytetu Poznańskiego 8, 61-614 Poznań, Poland
| |
Collapse
|
3
|
Osman A, Chittiboyina AG, Avula B, Ali Z, Adams SJ, Khan IA. Quality Consistency of Herbal Products: Chemical Evaluation. PROGRESS IN THE CHEMISTRY OF ORGANIC NATURAL PRODUCTS 2023; 122:163-219. [PMID: 37392312 DOI: 10.1007/978-3-031-26768-0_2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 07/03/2023]
Abstract
The widespread utility of herbal products has been rising considerably worldwide, including both developed and developing countries, leading to the rapid growth of their availability in the United States and globally. This substantial increase in consumption of herbal products has witnessed the emergence of adverse effects upon oral administration of certain of these products, and thus has raised safety concerns. The adverse effects caused by the consumption of certain botanical medicines occur primarily as a result of the poor quality of plant raw materials or the finished products, which inherently may affect safety and/or efficacy. The poor quality of some herbal products can be attributed to a lack of proper quality assurance and quality control. A high demand for herbal products that surpasses production, combined with a desire for maximizing profits, along with a lack of rigorous quality control within some manufacturing facilities have led to the emergence of quality inconsistencies. The underlying causes for this involve the misidentification of plant species, or their substitution, adulteration, or contamination with harmful ingredients. Analytical assessments have revealed there to be frequent and significant compositional variations between marketed herbal products. The inconsistency of the quality of herbal products can be ascribed essentially to the inconsistency of the botanical raw material quality used to manufacture the products. Thus, the quality assurance and the quality control of the botanical raw materials is may contribute significantly to improving the quality and consistency of the quality of the end products. The current chapter focuses on the chemical evaluation of quality and consistency of herbal products, including botanical dietary supplements. Different techniques, instruments, applications, and methods used in identifying, quantifying, and generating chemical fingerprints and chemical profiles of the ingredients of the herbal products will be described. The strengths and weaknesses of the various techniques available will be addressed. Limitations of the other approaches including morphological or microscopic analysis and DNA-based analysis will be presented.
Collapse
Affiliation(s)
- Ahmed Osman
- School of Pharmacy, National Center for Natural Products Research, The University of Mississippi, University, MS, 38677, USA.
| | - Amar G Chittiboyina
- School of Pharmacy, National Center for Natural Products Research, The University of Mississippi, University, MS, 38677, USA
| | - Bharathi Avula
- School of Pharmacy, National Center for Natural Products Research, The University of Mississippi, University, MS, 38677, USA
| | - Zulfiqar Ali
- School of Pharmacy, National Center for Natural Products Research, The University of Mississippi, University, MS, 38677, USA
| | - Sebastian J Adams
- School of Pharmacy, National Center for Natural Products Research, The University of Mississippi, University, MS, 38677, USA
| | - Ikhlas A Khan
- School of Pharmacy, National Center for Natural Products Research, The University of Mississippi, University, MS, 38677, USA
| |
Collapse
|
4
|
Anis A. Essential oils and chitosan based polymeric edible films and coatings as alternative to chemical preservatives. POLYM-PLAST TECH MAT 2022. [DOI: 10.1080/25740881.2022.2039187] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/18/2023]
Affiliation(s)
- Arfat Anis
- SABIC Polymer Research Center, Department of Chemical Engineering, King Saud University, Riyadh, Saudi Arabia
| |
Collapse
|
5
|
Foudah AI, Shakeel F, Alqarni MH, Ross SA, Salkini MA, Alam P. Green NP-HPTLC and green RP-HPTLC methods for the determination of thymoquinone: A contrast of validation parameters and greenness assessment. PHYTOCHEMICAL ANALYSIS : PCA 2022; 33:184-193. [PMID: 34227167 DOI: 10.1002/pca.3078] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/19/2021] [Revised: 06/15/2021] [Accepted: 06/17/2021] [Indexed: 06/13/2023]
Abstract
INTRODUCTION Thymoquinone (TQ) is a naturally derived bioactive compound with several therapeutic effects. OBJECTIVE The highly sensitive, rapid and green normal-phase (NP)/reversed-phase (RP) high-performance thin-layer chromatography (HPTLC) densitometry technique was developed for the determination of TQ in various plant extracts of different geographical regions, commercial capsules, creams and essential oils. METHODOLOGY The NP densitometry estimation of TQ was performed using a cyclohexane-ethyl acetate (90:10, v/v) green solvent system, while, the RP-densitometry estimation of TQ was performed using an ethanol-water (80:20, v/v) green solvent system. The estimation of TQ was conducted at 259 nm. RESULTS The NP and RP densitometry techniques were observed linear in the range of 25-1000 and 50-600 ng/band, respectively. All validation parameters such as accuracy, precision, robustness and sensitivity of NP/RP densitometry were observed within the limit of regulatory requirements and hence found to be suitable for the determination of TQ. The TQ contents were found to be highest in the Saudi Arabian extract followed by the Syrian extract, Indian extract, commercial capsules, commercial creams, Jordanian extract, Egyptian extract, Palestinian extract and commercial essential oils using NP densitometry. The TQ contents were found in same order using RP densitometry, but they were much lower than those recorded using NP densitometry. The Analytical GREEnness (AGREE) scores of NP and RP densitometry were found to be 0.82 and 0.84, respectively, suggesting an excellent greenness profile. CONCLUSIONS Based on these results, NP/RP densitometry was found to be suitable for the pharmaceutical assay of TQ.
Collapse
Affiliation(s)
- Ahmed I Foudah
- Department of Pharmacognosy, College of Pharmacy, Prince Sattam Bin Abdulaziz University, Al-Kharj, Saudi Arabia
| | - Faiyaz Shakeel
- Department of Pharmaceutics, College of Pharmacy, King Saud University, Riyadh, Saudi Arabia
| | - Mohammed H Alqarni
- Department of Pharmacognosy, College of Pharmacy, Prince Sattam Bin Abdulaziz University, Al-Kharj, Saudi Arabia
| | - Samir A Ross
- National Center for Natural Products Research, University of Mississippi, MS, USA
- Department of Biomolecular Sciences, School of Pharmacy, University of Mississippi, MS, USA
| | - Mohammad A Salkini
- Department of Pharmacognosy, College of Pharmacy, Prince Sattam Bin Abdulaziz University, Al-Kharj, Saudi Arabia
| | - Prawez Alam
- Department of Pharmacognosy, College of Pharmacy, Prince Sattam Bin Abdulaziz University, Al-Kharj, Saudi Arabia
| |
Collapse
|
6
|
Wang W, Zhu S, Chen H, Wu N, Chen H, Wang D. Development and Validation of Ultrahigh-Performance Liquid Chromatography Coupled with Triple Quadrupole Mass Spectrometry Method for Quantitative Determination of Ten Active Compounds in Ge-Gen-Jiao-Tai-Wan. JOURNAL OF ANALYTICAL METHODS IN CHEMISTRY 2022; 2022:4713799. [PMID: 35441054 PMCID: PMC9013549 DOI: 10.1155/2022/4713799] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/05/2022] [Accepted: 03/16/2022] [Indexed: 05/05/2023]
Abstract
A rapid, accurate, and sensitive method for the simultaneous determination of 10 main components, namely puerarin, daidzin, coptisine, epiberberine, jatrorrhizine, berberine, palmatine, coumarin, daidzein, and cinnamic acid in Ge-Gen-Jiao-Tai-Wan, was developed based on ultra-high-performance liquid chromatography coupled with triple quadrupole mass spectrometry. Analysis was performed on an Agilent 1290 Infinity II series UHPLC system, equipped with a Waters ACQUITY UPLC HSS T3 column (100 × 2.1 mm, 1.8 μm) by using (A) 0.1% acetic acid and (B) methanol as mobile phase. The flow rate was 0.3 mL/min, and the injection volume was 1 μL. Mass spectrometry was operated in multiple reaction monitoring mode using an Agilent 6460 triple quadrupole mass spectrometer equipped with an AJS-ESI ion source. Agilent Mass Hunter Work Station Software was employed for data acquisition and processing. All calibration curves showed excellent linear regressions (R 2 > 0.9992). The precision, repeatability, and stability of the ten compounds were below 4.56% in terms of relative standard deviation. The average extraction recovery ranged from 96.53% to 102.69% with a relative standard deviation of 1.14-3.78% for all samples. This study potently contributes to the quantitative evaluation of Ge-Gen-Jiao-Tai-Wan, thereby providing a scientific basis for further studies and clinical application of Ge-Gen-Jiao-Tai-Wan.
Collapse
Affiliation(s)
- Wenbo Wang
- Department of Integrated Traditional Chinese and Western Medicine, Xiangya Hospital, Central South University, Changsha 410008, China
- National Clinical Research Center for Geriatric Diseases, Xiangya Hospital, Central South University, Changsha 410008, China
| | - Shuangquan Zhu
- Department of Gynecology, The Second Affiliated Hospital of Hunan University of Chinese Medicine, Changsha 410005, China
| | - Hao Chen
- Department of Clinical Laboratory, The First Affiliated Hospital of Hunan University of Chinese Medicine, Changsha 410007, China
| | - Ning Wu
- Changsha Social Work College, Changsha 410116, China
| | - Han Chen
- Department of Integrated Traditional Chinese and Western Medicine, Xiangya Hospital, Central South University, Changsha 410008, China
- National Clinical Research Center for Geriatric Diseases, Xiangya Hospital, Central South University, Changsha 410008, China
| | - Dongsheng Wang
- Department of Integrated Traditional Chinese and Western Medicine, Xiangya Hospital, Central South University, Changsha 410008, China
- National Clinical Research Center for Geriatric Diseases, Xiangya Hospital, Central South University, Changsha 410008, China
| |
Collapse
|
7
|
De-Montijo-Prieto S, Razola-Díaz MDC, Gómez-Caravaca AM, Guerra-Hernandez EJ, Jiménez-Valera M, Garcia-Villanova B, Ruiz-Bravo A, Verardo V. Essential Oils from Fruit and Vegetables, Aromatic Herbs, and Spices: Composition, Antioxidant, and Antimicrobial Activities. BIOLOGY 2021; 10:1091. [PMID: 34827085 PMCID: PMC8615279 DOI: 10.3390/biology10111091] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/03/2021] [Revised: 10/19/2021] [Accepted: 10/20/2021] [Indexed: 12/03/2022]
Abstract
In the field of food preservation, encapsulated Essential Oils (EOs) could be the best non-toxic and eco-friendly tool for food preservative applications substituting the chemicals ones that have several disadvantages for the environment and health. Thirteen commercial EOs from plants, fruits, and vegetables were characterized by GC-MS. The antioxidant activity was measured by DPPH and ABTS techniques. Antimicrobial activity was assessed by agar well-diffusion method and the Minimum Inhibitory Concentration (MIC) by agar dilution method against six bacteria, Candida albicans, and Botrytis cinerea. All the EOs tested have demonstrated antioxidant activity in the range of IC50 0.01-105.32 mg/mL. Between them, cinnamon EOs were the best, followed by oregano and thyme EOs. Fennel EO showed the lowest radical scavenging. MIC values ranged from 0.14 to 9 mg/mL. C. cassia, thyme, and oregano EOs were the most effective against the bacterial species tested, and the yeast C. albicans. On the contrary, citric fruit EOs showed low or no inhibition against most bacterial strains. The percentages of inhibition of mycelia growth of B. cinerea ranged from 3.4 to 98.5%. Thyme, oregano, mint, and fennel EOs showed the highest inhibition.
Collapse
Affiliation(s)
- Soumi De-Montijo-Prieto
- Department of Microbiology, Campus of Cartuja, University of Granada, 18071 Granada, Spain; (S.D.-M.-P.); (M.J.-V.); (A.R.-B.)
| | - María del Carmen Razola-Díaz
- Department of Nutrition and Food Science, Campus of Cartuja, University of Granada, 18071 Granada, Spain; (M.d.C.R.-D.); (E.J.G.-H.); (B.G.-V.); (V.V.)
- Institute of Nutrition and Food Technology ‘José Mataix’, Biomedical Research Center, University of Granada, Avda del Conocimiento sn., Armilla, 18100 Granada, Spain
| | - Ana María Gómez-Caravaca
- Department of Analytical Chemistry, Faculty of Sciences, University of Granada, Avd. Fuentenueva s/n., 18071 Granada, Spain
| | - Eduardo Jesús Guerra-Hernandez
- Department of Nutrition and Food Science, Campus of Cartuja, University of Granada, 18071 Granada, Spain; (M.d.C.R.-D.); (E.J.G.-H.); (B.G.-V.); (V.V.)
| | - María Jiménez-Valera
- Department of Microbiology, Campus of Cartuja, University of Granada, 18071 Granada, Spain; (S.D.-M.-P.); (M.J.-V.); (A.R.-B.)
| | - Belén Garcia-Villanova
- Department of Nutrition and Food Science, Campus of Cartuja, University of Granada, 18071 Granada, Spain; (M.d.C.R.-D.); (E.J.G.-H.); (B.G.-V.); (V.V.)
| | - Alfonso Ruiz-Bravo
- Department of Microbiology, Campus of Cartuja, University of Granada, 18071 Granada, Spain; (S.D.-M.-P.); (M.J.-V.); (A.R.-B.)
| | - Vito Verardo
- Department of Nutrition and Food Science, Campus of Cartuja, University of Granada, 18071 Granada, Spain; (M.d.C.R.-D.); (E.J.G.-H.); (B.G.-V.); (V.V.)
- Institute of Nutrition and Food Technology ‘José Mataix’, Biomedical Research Center, University of Granada, Avda del Conocimiento sn., Armilla, 18100 Granada, Spain
| |
Collapse
|
8
|
Rapid, Highly-Sensitive and Ecologically Greener Reversed-Phase/Normal-Phase HPTLC Technique with Univariate Calibration for the Determination of Trans-Resveratrol. SEPARATIONS 2021. [DOI: 10.3390/separations8100184] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
The rapid, highly-sensitive and ecologically greener reversed-phase (RP)/normal-phase (NP) high-performance thin-layer chromatography (HPTLC) densitometric technique has been developed and validated for the determination of trans-resveratrol (TRV). The reversed-phase HPTLC-based analysis of TRV was performed using ethanol–water (65:35, v v−1) combination as the greener mobile phase, while, the normal-phase HPTLC-based estimation of TRV was performed using chloroform–methanol (85:15, v v−1) combination as the routine mobile phase. The TRV detection was carried out at 302 nm for RP/NP densitometric assay. The linearity was recorded as 10–1200 and 30–400 ng band−1 for RP and NP HPTLC techniques, respectively. The RP densitometric assay was observed as highly-sensitive, accurate, precise and robust for TRV detection in comparison with the NP densitometric assay. The contents of TRV in commercial formulation were recorded as 101.21% utilizing the RP densitometric assay, while, the contents of TRV in commercial formulation were found to be 91.64% utilizing the NP densitometric assay. The greener profile of RP/NP technique was obtained using the analytical GREEnness (AGREE) approach. The AGREE scales for RP and NP densitometric assays were estimated 0.75 and 0.48, respectively. The recorded AGREE scale for the RP densitometric assay indicated that this technique was highly green/the ecologically greener compared to the NP densitometric assay. After successful optimization of analytical conditions, validation parameters, AGREE scale and chromatography performance, the RP densitometric assay with univariate calibration was found to be better than the NP densitometric assay for the analysis of TRV.
Collapse
|
9
|
Demakov PA, Vasileva AA, Volynkin SS, Ryadun AA, Samsonenko DG, Fedin VP, Dybtsev DN. Cinnamal Sensing and Luminescence Color Tuning in a Series of Rare-Earth Metal-Organic Frameworks with Trans-1,4-cyclohexanedicarboxylate. Molecules 2021; 26:5145. [PMID: 34500580 PMCID: PMC8433715 DOI: 10.3390/molecules26175145] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2021] [Revised: 08/21/2021] [Accepted: 08/23/2021] [Indexed: 12/27/2022] Open
Abstract
Three isostructural metal-organic frameworks ([Ln2(phen)2(NO3)2(chdc)2]·2DMF (Ln3+ = Y3+ for 1, Eu3+ for 2 or Tb3+ for 3; phen = 1,10-phenanthroline; H2chdc = trans-1,4-cyclohexanedicarboxylic acid) were synthesized and characterized. The compounds are based on a binuclear block {M2(phen)2(NO3)2(OOCR)4} assembled into a two-dime nsional square-grid network containing tetragonal channels with 26% total solvent-accessible volume. Yttrium (1)-, europium (2)- and terbium (3)-based structures emit in the blue, red and green regions, respectively, representing the basic colors of the standard RGB matrix. A doping of Eu3+ and/or Tb3+ centers into the Y3+-based phase led to mixed-metal compositions with tunable emission color and high quantum yields (QY) up to 84%. The bright luminescence of a suspension of microcrystalline 3 in DMF (QY = 78%) is effectively quenched by diluted cinnamaldehyde (cinnamal) solutions at millimolar concentrations, suggesting a convenient and analytically viable sensing method for this important chemical.
Collapse
Affiliation(s)
- Pavel A. Demakov
- Nikolaev Institute of Inorganic Chemistry, Siberian Branch of the Russian Academy of Sciences, 630090 Novosibirsk, Russia; (A.A.V.); (S.S.V.); (A.A.R.); (D.G.S.); (V.P.F.); (D.N.D.)
| | - Alena A. Vasileva
- Nikolaev Institute of Inorganic Chemistry, Siberian Branch of the Russian Academy of Sciences, 630090 Novosibirsk, Russia; (A.A.V.); (S.S.V.); (A.A.R.); (D.G.S.); (V.P.F.); (D.N.D.)
- Department of Natural Sciences, Novosibirsk State University, 2 Pirogova St., 630090 Novosibirsk, Russia
| | - Sergey S. Volynkin
- Nikolaev Institute of Inorganic Chemistry, Siberian Branch of the Russian Academy of Sciences, 630090 Novosibirsk, Russia; (A.A.V.); (S.S.V.); (A.A.R.); (D.G.S.); (V.P.F.); (D.N.D.)
| | - Alexey A. Ryadun
- Nikolaev Institute of Inorganic Chemistry, Siberian Branch of the Russian Academy of Sciences, 630090 Novosibirsk, Russia; (A.A.V.); (S.S.V.); (A.A.R.); (D.G.S.); (V.P.F.); (D.N.D.)
| | - Denis G. Samsonenko
- Nikolaev Institute of Inorganic Chemistry, Siberian Branch of the Russian Academy of Sciences, 630090 Novosibirsk, Russia; (A.A.V.); (S.S.V.); (A.A.R.); (D.G.S.); (V.P.F.); (D.N.D.)
| | - Vladimir P. Fedin
- Nikolaev Institute of Inorganic Chemistry, Siberian Branch of the Russian Academy of Sciences, 630090 Novosibirsk, Russia; (A.A.V.); (S.S.V.); (A.A.R.); (D.G.S.); (V.P.F.); (D.N.D.)
| | - Danil N. Dybtsev
- Nikolaev Institute of Inorganic Chemistry, Siberian Branch of the Russian Academy of Sciences, 630090 Novosibirsk, Russia; (A.A.V.); (S.S.V.); (A.A.R.); (D.G.S.); (V.P.F.); (D.N.D.)
| |
Collapse
|