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Vaishanav SK, Korram J, Verma TK, Jadhav SK, Nagwanshi R, Satnami ML. Antibacterial Activity of CdTe/ZnS Quantum Dot-β Lactum Antibiotic Conjugates. J Fluoresc 2024; 34:833-846. [PMID: 37389712 DOI: 10.1007/s10895-023-03316-x] [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: 04/04/2023] [Accepted: 06/13/2023] [Indexed: 07/01/2023]
Abstract
β-Lactum antibiotics are broad class of antibiotics which kills bacteria by inhibiting the formation of peptidoglycan that constitutes the bacterial cell wall. The resistance that develops in bacteria for antibiotics led the scientific world to think about the future aspects for modifying the way through which antibiotics are acted on the bacteria and become lethal for them. In this consequence, the potential of latest marketed antibiotics e.g. Amoxiciline (I), ceftazidim (II) have been evaluated after being conjugated with quantum dots. The surface of quantum dots has been conjugated with antibiotics by carbodiimide coupling with the help of 1-ethyl-3-(3-dimethylaminopropyl) carbodiimide (EDC) and N-hydroxysuccinimide (NHS) as conjugating agent between antibiotic and functionalized quantum dots. The antibacterial properties of QD-conjugated antibiotics have been determined by disc diffusion assay. The potency of QD-conjugated antibiotics has been estimated by determining their MIC50 for the selected strain of Gram-negative (Escherichia coli) and Gram-positive (Staphylococcus aureus) bacteria. Minimum inhibitory concentration study, minimum bactericidal concentration and growth pattern analysis revealed that QD-antibiotic conjugates showed slightly more prospective than pure native antibiotics against both Gram-negative (Escherichia coli) and Gram-positive (Staphylococcus aureus) bacteria.
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Affiliation(s)
- Sandeep K Vaishanav
- State Forensic Science Laboratory, Police line Campus, Tikrapara, Raipur, C.G., 492001, India
| | - Jyoti Korram
- School of Studies in Chemistry, Pt. Ravishankar Shukla University, Raipur, C.G., 492010, India
| | - Tikendra K Verma
- Laxman Prasad Baidh Govt. Girls College, Bemetara, C.G., 491335, India
| | - S K Jadhav
- School of Studies in Biotechnology, Pt. Ravishankar Shukla University, Raipur, C.G., 492010, India
| | - Rekha Nagwanshi
- Department of Chemistry, Govt. Madhav P. G. Science College, Ujjain, M. P., 456010, India
| | - Manmohan L Satnami
- School of Studies in Chemistry, Pt. Ravishankar Shukla University, Raipur, C.G., 492010, India.
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nor 3′-Demethoxyisoguaiacin from Larrea tridentata Is a Potential Alternative against Multidrug-Resistant Bacteria Associated with Bovine Mastitis. Molecules 2022; 27:molecules27113620. [PMID: 35684556 PMCID: PMC9182459 DOI: 10.3390/molecules27113620] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2022] [Revised: 05/28/2022] [Accepted: 05/30/2022] [Indexed: 02/06/2023] Open
Abstract
Bovine mastitis is one of the most common diseases in dairy cows, and it causes significant economic losses in dairy industries worldwide. Gram-positive and Gram-negative bacteria can cause bovine mastitis, and many of them have developed antimicrobial resistance. There is an urgent need for novel therapeutic options to treat the disease. Larrea tridentata-derived compounds represent an important potential alternative treatment. The aim of the present study was to isolate and characterize antibacterial compounds from Larrea tridentata against multidrug-resistant bacteria associated with bovine mastitis. The L. tridentata hydroalcoholic extract (LTHE) exhibited antibacterial activity. The extract was subjected to a bipartition, giving an aqueous fraction (moderate antibacterial activity) and an organic fraction (higher antibacterial activity). Chromatographic separation of the organic fraction enabled us to obtain four active sub-fractions. Chemical analyses through HPLC techniques were conducted for the LTHE, fractions, and sub-fraction Ltc1-F3, from which we isolated two compounds, characterized by 1H and 13C NMR analyses. Compound nor-3 demethoxyisoguaiacin exhibited the best antibacterial activity against the evaluated bacteria (MIC: 0.01–3.12 mg/mL; MBC: 0.02–3.12 mg/mL). The results indicated that nor-3 demethoxyisoguaiacin can be used as an alternative treatment for multidrug-resistant bacteria associated with mastitis.
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Felodipine Determination by a CdTe Quantum Dot-Based Fluorescent Probe. MICROMACHINES 2022; 13:mi13050788. [PMID: 35630254 PMCID: PMC9142910 DOI: 10.3390/mi13050788] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/18/2022] [Revised: 05/06/2022] [Accepted: 05/13/2022] [Indexed: 02/04/2023]
Abstract
In this work, a CdTe quantum dot-based fluorescent probe was synthesized to determine felodipine (FEL). The synthesis conditions, structure, and interaction conditions with FEL of CdTe quantum dots were analysed by fluorescence spectrophotometry, Fourier transform infrared spectroscopy (FT-IR), X-ray diffraction (XRD), UV–visible spectroscopy, and TEM. The CdTe QD concentration was 2.0 × 10−4 mol/L. The amount of quantum dots controlled in the experiment was 0.8 mL. The controlled feeding ratio of N (Cd2+):N (Te2−):N (TGA) was 2:1:4, the heating temperature was 140 °C, the heating time was 60 min, and the pH of the QD precursor was adjusted to 11 for subsequent experiments. The UV–visible spectrum showed that the emission wavelength of CdTe quantum dots at 545 nm was the strongest and symmetric. The particle size of the synthesized quantum dots was approximately 5 nm. In the interaction of CdTe quantum dots with FEL, the FEL dosage was 1.0 mL, the optimal pH value of Tris-HCl buffer was 8.2, the amount of buffer was 1.5 mL, and the reaction time was 20 min. The standard curve of FEL was determined under the optimal synthesis conditions of CdTe quantum dots and reaction of CdTe quantum dots with FEL. The linear equation was Y = 3.9448x + 50.068, the correlation coefficient R2 was 0.9986, and the linear range was 5 × 10−6–1.1 × 10−4 mol/L. A CdTe quantum dot-based fluorescent probe was successfully constructed and could be used to determine the FEL tablet content.
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Xia X, Wang X, Wang H, Lin Z, Shao K, Xu J, Zhao Y. Ameliorative effect of white tea from 50-year-old tree of Camellia sinensis L. (Theaceae) on kidney damage in diabetic mice via SIRT1/AMPK pathway. JOURNAL OF ETHNOPHARMACOLOGY 2021; 272:113919. [PMID: 33577915 DOI: 10.1016/j.jep.2021.113919] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/14/2020] [Revised: 01/26/2021] [Accepted: 02/06/2021] [Indexed: 06/12/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Diabetic kidney damage (DKD) is one of the most common complications of diabetes, which is known as a chronic inflammatory kidney disease caused by persistent hyperglycemia. White tea was originally used as a folk medicine to treat measles in ancient China. What arouses our interest is that there is a traditional method to treat diabetes with white tea taken from over 30-year-old tree of Camellia sinensis L. However, there are few reports on the renal protection of white tea. AIM OF THE STUDY This present study was designed to study the potential protective effects of white tea (WT) and old tree white tea (OTWT) on high-fat-diet (HFD) combined with streptozotocin (STZ)-induced type 2 diabetic mice to explore the possible mechanism of WT/OTWT against DKD. MATERIALS AND METHODS C57BL/6 mice were randomly divided into four groups: NC, T2D, WT (400 mg/kg·b.w, p.o.), OTWT (400 mg/kg·b.w, p.o.). Diabetes was established in all groups except NC group, by six weeks of HFD feeding combined with STZ (50 mg/kg, i.p.) for 3 times, treatments were administered for six weeks and then all the animals were decapitated; kidney tissues and blood samples were collected for the further analysis, including: levels of insulin, lipid metabolism (TG, TC, HDL, LDL, FFA), antioxidative enzymes (catalase (CAT), super oxide dismutase (SOD), glutathione peroxidase (GPx)), blood urea nitrogen (BUN) and creatine, inflammatory cytokines (TNF-α, IL-1β, COX-2, iNOS, MCP-1), advanced glycation end products (AGE), receptor of AGE (RAGE), Nrf2, AMPK, SIRT1, and PGC-1α. H&E, PAS and Masson staining were performed to examine the histopathological alterations of the kidneys. RESULTS Our data showed that WT and OTWT reversed the abnormal serum lipids (TG, TC, HDL, LDL, FFA) in T2D mice, upregulated antioxidative enzymes levels (CAT, SOD, GPx) and inhibit the excessive production of proinflammatory mediators (including MCP-1, TNF-α, IL1β, COX-2 and iNOS) by varying degrees, and OTWT was more effective. In histopathology, OTWT could significantly alleviate the accumulation of renal AGE in T2D mice, thereby improving the structural changes of the kidneys, such as glomerular hypertrophy, glomerular basement membrane thickening and kidney FIbrosis. CONCLUSIONS Both WT and OTWT could alleviate the diabetic changes in T2D mice via hypoglycemic, hypolipidemic, anti-oxidative and anti-inflammatory effects, while OTWT was more evident. OTWT could prominently alleviate the accumulation of AGE in the kidneys of T2D mice, thereby ameliorating the renal oxidative stress and inflammatory damage, which was associated with the activation of SIRT1/AMPK pathway.
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Affiliation(s)
- Xiaoyan Xia
- School of Traditional Chinese Medicine, Shanxi Datong University, Datong, 037009, China; School of Functional Food and Wine, Shenyang Pharmaceutical University, Shenyang, 110016, China.
| | - Xude Wang
- School of Functional Food and Wine, Shenyang Pharmaceutical University, Shenyang, 110016, China.
| | - Hua Wang
- School of Functional Food and Wine, Shenyang Pharmaceutical University, Shenyang, 110016, China.
| | - Zhenchuan Lin
- Pinpin Tea Industry Co., Ltd., Fujian, 355200, China.
| | - Keping Shao
- Pinpin Tea Industry Co., Ltd., Fujian, 355200, China.
| | - Jing Xu
- School of Functional Food and Wine, Shenyang Pharmaceutical University, Shenyang, 110016, China.
| | - Yuqing Zhao
- School of Functional Food and Wine, Shenyang Pharmaceutical University, Shenyang, 110016, China; Key Laboratory of Structure-Based Drug Design and Discovery of Ministry of Education, Shenyang Pharmaceutical University, Shenyang, 110016, China.
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Mihanfar A, Nouri M, Roshangar L, Khadem-Ansari MH. Polyphenols: Natural compounds with promising potential in treating polycystic ovary syndrome. Reprod Biol 2021; 21:100500. [PMID: 33878526 DOI: 10.1016/j.repbio.2021.100500] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2020] [Revised: 01/30/2021] [Accepted: 03/11/2021] [Indexed: 12/12/2022]
Abstract
Polyphenols are natural compounds used by plants as a defense system against various stresses. In recent years, the importance of these polyhydroxyphenols has extensively increased due to their potent cardioprotection, anti-carcinogenic, anti-oxidant, anti-apoptotic, and anti-inflammatory properties. Therefore, various studies have reported promising results from the studies investigating their efficacy as a therapeutic strategy in various disorders such as human malignancies, cardiovascular diseases, nervous system impairments, diabetes, metabolic syndrome, aging, and inflammation-associated disorders, as well as a polycystic ovarian syndrome (PCOS). Since oxidative stress, hormonal, metabolic, and endocrine disturbances have been shown to play a crucial role in the initiation/progression of PCOS, polyphenols are suggested to be an effective treatment for this disorder. Therefore, this study aimed to discuss the therapeutic potential of multiple polyphenols in PCOS.
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Affiliation(s)
- Aynaz Mihanfar
- Department of Clinical Biochemistry, Faculty of Medicine, Urmia University of Medical Sciences, Urmia, Iran
| | - Mohammad Nouri
- Stem Cell Research Center, Tabriz University of Medical Sciences, Tabriz, Iran; Department of Reproductive Biology, Faculty of Advanced Medical Sciences, Tabriz University of Medical Sciences Tabriz, Iran; Stem Cell and Regenerative Medicine Institute, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Leila Roshangar
- Stem Cell Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
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Xia X, Lin Z, Shao K, Wang X, Xu J, Zhai H, Wang H, Xu W, Zhao Y. Combination of white tea and peppermint demonstrated synergistic antibacterial and anti-inflammatory activities. JOURNAL OF THE SCIENCE OF FOOD AND AGRICULTURE 2021; 101:2500-2510. [PMID: 33058206 DOI: 10.1002/jsfa.10876] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/21/2020] [Revised: 09/11/2020] [Accepted: 10/15/2020] [Indexed: 06/11/2023]
Abstract
BACKGROUND White tea, considered to be the oldest form of tea, is becoming a popular beverage for its organoleptic characteristics. Peppermint tea, used as a herbal remedy for centuries, is now also very popular throughout the world as herbal tea. What interested us was that in ancient China, peppermint was used in combination with tea as a detoxification or anti-inflammatory agent. However, there are few reports on the combined use of white tea and peppermint. Therefore, this study aims to investigate the antibacterial and anti-inflammatory activities of white tea in combination with peppermint. RESULTS A synergistic inhibitory effect against four bacterial strains, especially against Staphylococcus argenteus, was observed in the combination of white tea and peppermint in vitro. In addition, the combined formula demonstrated a stronger anti-inflammatory effect in vivo than either of the two used alone, which was associated with the decrease of the pro-inflammatory cytokines of interleukin-6 (IL-6), interleukin-1beta (IL-1β), tumor necrosis factor-alpha (TNF-α), cyclooxygenase-2 (COX-2) and inducible nitric oxide synthase (iNOS). In a further mechanism study, it was found that white tea and peppermint inhibited the phosphorylation of p-IκB-α and mitogen-activated protein kinase (MAPK) at different degrees. While the enhanced anti-inflammatory effect of the combined formula was associated with the combination of NF-κB down-regulation and p-MAPK inhibition. CONCLUSION In our study, it was for the first time shown that when white tea was combined with peppermint, the antibacterial and anti-inflammatory effects were enhanced. The results suggested an effective application of white tea in combination with peppermint as a potential antibacterial and anti-inflammatory functional food. © 2020 Society of Chemical Industry.
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Affiliation(s)
- Xiaoyan Xia
- School of Functional Food and Wine, Shenyang Pharmaceutical University, Shenyang, China
- School of Traditional Chinese Medicine, Shanxi Datong University, Datong, China
| | | | | | - Xude Wang
- School of Functional Food and Wine, Shenyang Pharmaceutical University, Shenyang, China
| | - Jing Xu
- School of Functional Food and Wine, Shenyang Pharmaceutical University, Shenyang, China
| | - Hang Zhai
- School of Functional Food and Wine, Shenyang Pharmaceutical University, Shenyang, China
| | - Hua Wang
- School of Functional Food and Wine, Shenyang Pharmaceutical University, Shenyang, China
| | - Wei Xu
- School of Functional Food and Wine, Shenyang Pharmaceutical University, Shenyang, China
| | - Yuqing Zhao
- School of Functional Food and Wine, Shenyang Pharmaceutical University, Shenyang, China
- Key Laboratory of Structure-based Drug Design and Discovery of Ministry of Education, Shenyang Pharmaceutical University, Shenyang, China
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Talebi H, Farahpour MR, Hamishehkar H. The effectiveness of Rutin for prevention of surgical induced endometriosis development in a rat model. Sci Rep 2021; 11:7180. [PMID: 33785814 PMCID: PMC8010059 DOI: 10.1038/s41598-021-86586-4] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2020] [Accepted: 03/17/2021] [Indexed: 02/06/2023] Open
Abstract
Apoptosis and antioxidant mechanisms are pathways for the treatment of endometriosis (Endo). Rutin (Rtn) is an antioxidant flavonol that induces apoptosis. This study, for first time, was conducted to evaluate the effects of rutin on Endo through apoptosis and antioxidant mechanisms. The experimental Endo was induced in 24 rats and then the animals were subdivided into Endo-sole, 3000 and 6000 µg/kg rutin (Rtn-3000 and Rtn-6000) and vitamin C groups. After 4 weeks, the expression of Bcl2, Bax, anti Pro Caspase-9, cleaved Caspase-9, pro PARP, pro Cleaved PARP, Pro PARP, pro mTOR and mTOR were assessed by western blotting technique. The protein concentrations of malondialdehyde (MDA), total antioxidant capacity, and super oxide dismutase and gutathione peroxidase were also evaluated. TUNEL staining was also used for the detection of apoptosis. Caspase-9 and concentration of antioxidants were higher in the treated groups compared to Endo-sole group (P < 0.05). The results also showed that rutin decreased the expression of Bcl2 and MDA concentration (P < 0.05). The results for TUNEL staining showed that the animals treated with Rtn-6000 and vitamin C showed higher apoptosis. Rutin induces apoptosis by the expression of Bcl-2, Bax and caspase and also antioxidant activity by increasing antioxidants concentrations.
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Affiliation(s)
- Hatef Talebi
- Department of Basic Sciences, Faculty of Veterinary Medicine, Urmia Branch, Islamic Azad University, Urmia, Iran
| | - Mohammad Reza Farahpour
- Department of Clinical Sciences, Faculty of Veterinary Medicine, Urmia Branch, Islamic Azad University, Urmia, Iran.
| | - Hamed Hamishehkar
- Drug Applied Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
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Radiation-synthesis of chitosan/poly (acrylic acid) nanogel for improving the antitumor potential of rutin in hepatocellular carcinoma. Drug Deliv Transl Res 2020; 11:261-278. [PMID: 32488816 DOI: 10.1007/s13346-020-00792-7] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
Abstract
The current study aimed to investigate the ability of chitosan/poly (acrylic acid) nanogel (CAN) to improve the bioavailability and anticancer potential of rutin. Synthesis of CAN was carried out by gamma radiation-induced polymerization of acrylic acid in an aqueous solution of chitosan. The relationship between the hydrodynamic radius of CAN and the absorbed radiation doses was also investigated. The prepared nanogels were characterized by transmission electron microscopy (TEM), dynamic light scattering (DLS), X-ray diffraction (XRD), and Fourier transform infrared (FT-IR) techniques, and then, it was used as a nano-drug carrier for rutin. The developed formulation was evaluated for its antitumor activity against chemically induced hepatocarcinoma in rats. The following parameters were measured: aspartate and alanine aminotransferase, alkaline phosphatase, gamma glutamyltransferase, and total bilirubin as liver function test; vascular endothelial growth factor as an angiogenesis marker; α-fetoprotein as a tumor marker; and P53, caspase-3, Bax, and Bcl-2 as apoptosis markers. Histopathological examination was also confirmed. Significant enhanced anti-proliferative, anti-angiogenic, and apoptotic effects were observed for rutin-loaded CAN than free rutin, indicating that this formulation could provide a novel therapeutic approach to serve as a promising agent for treatment of hepatocellular carcinoma. Graphical abstract.
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Kumar H, Dutta PK. Thioglycolic acid modified chitosan: a template for in-situ synthesis of CdSe QDs for cell imaging. JOURNAL OF MACROMOLECULAR SCIENCE PART A-PURE AND APPLIED CHEMISTRY 2020. [DOI: 10.1080/10601325.2020.1766981] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
Affiliation(s)
- Hridyesh Kumar
- Polymer Research Laboratory, Department of Chemistry, Motilal Nehru National Institute of Technology Allahabad, Prayagraj, India
| | - P. K. Dutta
- Polymer Research Laboratory, Department of Chemistry, Motilal Nehru National Institute of Technology Allahabad, Prayagraj, India
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Multi-instrumental approach to unravel molecular mechanisms of natural bioactive compounds: Case studies for flavonoids. Trends Analyt Chem 2020. [DOI: 10.1016/j.trac.2020.115865] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
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Rajendiran K, Zhao Z, Pei DS, Fu A. Antimicrobial Activity and Mechanism of Functionalized Quantum Dots. Polymers (Basel) 2019; 11:E1670. [PMID: 31614993 PMCID: PMC6835343 DOI: 10.3390/polym11101670] [Citation(s) in RCA: 38] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2019] [Revised: 10/05/2019] [Accepted: 10/09/2019] [Indexed: 02/07/2023] Open
Abstract
An essential characteristic of quantum dots (QDs) is their antimicrobial activity. Compared with conventional antibiotics, QDs not only possess photoluminescence properties for imaging and photodynamic therapy but also have high structural stability. To enhance their antimicrobial efficiency, QDs usually are functionalized by polymers, including poly(ethylene glycol), polyethyleneimine, and poly-l-lysine. Also, QDs conjugated with polymers, such as poly(vinylpyrrolidone) and polyvinylidene fluoride, are prepared as antimicrobial membranes. The main antimicrobial mechanisms of QDs are associated with inducing free radicals, disrupting cell walls/membranes, and arresting gene expression. The different mechanisms from traditional antibiotics allow QDs to play antimicrobial roles in multi-drug-resistant bacteria and fungi. Since the toxicity of the QDs on animal cells is relatively low, they have broad application in antimicrobial research as an effective alternative of traditional antibiotics.
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Affiliation(s)
- Keerthiga Rajendiran
- College of Pharmaceutical Sciences, Southwest University, Chongqing 400716, China.
| | - Zizhen Zhao
- College of Pharmaceutical Sciences, Southwest University, Chongqing 400716, China.
| | - De-Sheng Pei
- Chongqing Institute of Green and Intelligent Technology, Chinese Academy of Sciences, Chongqing 400714, China.
| | - Ailing Fu
- College of Pharmaceutical Sciences, Southwest University, Chongqing 400716, China.
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Dual drug loaded PLGA nanospheres for synergistic efficacy in breast cancer therapy. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2019; 103:109716. [DOI: 10.1016/j.msec.2019.05.001] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/25/2018] [Revised: 04/20/2019] [Accepted: 05/01/2019] [Indexed: 12/25/2022]
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The Effect of Rutin on Progesterone and Estrogen Receptor Expression in Uterine Endometrial Tissue in the Heterotopic Transplantation of Newborn Mouse Ovary. IRANIAN RED CRESCENT MEDICAL JOURNAL 2019. [DOI: 10.5812/ircmj.86289] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
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Elmizadeh H, Soleimani M, Faridbod F, Bardajee G. Fabrication of a nanomaterial-based fluorescence sensor constructed from ligand capped CdTe quantum dots for ultrasensitive and rapid detection of silver ions in aqueous samples. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2019; 211:291-298. [PMID: 30562702 DOI: 10.1016/j.saa.2018.12.016] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/21/2018] [Revised: 12/02/2018] [Accepted: 12/08/2018] [Indexed: 06/09/2023]
Abstract
In this study, CdTe QDs were prepared in aqueous medium and then capped with a synthetic heterocycle ligand (CdTe/L QDs) via surface modification method. Characterization of synthesized CdTe/L QDs was carried out through various analytical techniques including fluorescence spectroscopy, transmission electron microscopy (TEM), UV-Vis spectrophotometry, thermo-gravimetric (TG) analysis and Fourier transform infrared (FTIR). The fluorescence intensity of the CdTe/L QDs at 520 nm (excitation at 380 nm) was selectively quenched in the presence of trace amounts of silver ions. CdTe/L QDs were utilized as an ultrasensitive and selective fluorescent sensor for determination of trace concentrations of silver ions with a detection limit of 6.12 ± 0.11 × 10-10 mol L-1 and a linear range of 2.04 ± 0.10 × 10-9 mol L-1-3.63 ± 0.12 × 10-7 mol L-1. The fabricated optical sensor was also used for the measurement of silver ions in real water samples which yielded satisfactory analytical results. These results were also evaluated with inductively coupled plasma emission spectroscopy (ICP-OES). This study shows that CdTe/L QDs could have potential applications in selective and sensitive analysis of different water samples for detection of silver ions.
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Affiliation(s)
- Hamideh Elmizadeh
- Department of Chemistry, Faculty of Science, Imam Khomeini International University (IKIU), P.O.BOX: 288, Qazvin, Iran
| | - Majid Soleimani
- Department of Chemistry, Faculty of Science, Imam Khomeini International University (IKIU), P.O.BOX: 288, Qazvin, Iran.
| | - Farnoush Faridbod
- Center of Excellence in Electrochemistry, Faculty of Chemistry, University of Tehran, Tehran, Iran
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Elmizadeh H, Soleimani M, Faridbod F, Bardajee GR. Fabrication and optimization of a sensitive tetracycline fluorescent nano-sensor based on oxidized starch polysaccharide biopolymer-capped CdTe/ZnS quantum dots: Box–Behnken design. J Photochem Photobiol A Chem 2018. [DOI: 10.1016/j.jphotochem.2018.08.021] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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16
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Deepika MS, Thangam R, Sheena TS, Sasirekha R, Sivasubramanian S, Babu MD, Jeganathan K, Thirumurugan R. A novel rutin-fucoidan complex based phytotherapy for cervical cancer through achieving enhanced bioavailability and cancer cell apoptosis. Biomed Pharmacother 2018; 109:1181-1195. [PMID: 30551368 DOI: 10.1016/j.biopha.2018.10.178] [Citation(s) in RCA: 44] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2018] [Revised: 10/30/2018] [Accepted: 10/31/2018] [Indexed: 12/20/2022] Open
Abstract
Recent studies on flavonoids forming complexes with macromolecules attract researchers due to their enhanced bioavailability as well as chemo-preventive efficacy. In this study, a flavonoid rutin (Ru) is non-covalently complexed with fucoidan (Fu) using the functional groups to obtain a therapeutic polymeric complex overcoming the limitations of bioavailability of rutin. The prepared novel rutin-fucoidan (Ru-Fu) complex is characterized for spectroscopic features, particle size and distribution analysis by DLS. It is shown that the complex displayed the nanostructural features that are different from that of the usual rutin-fucoidan mixture. The studies on drug release profiles at different pH (5.5, 6.8 and 7.4) show that the sustained release of compounds from complex occurs preferentially at the desired endosomal pH (5.5). Further, the chemopreventive potential of Ru-Fu complex is investigated against HeLa cells by cellular apoptotic assays and flow cytometric analysis. It showed that the complex is able to disrupt cell cycle regulation and has the ability to induce cellular apoptosis via nuclear fragmentation, ROS generation and mitochondrial potential loss. In vitro cell viability assay with Ru-Fu complex shows that the complex is biocompatible on normal cells. The hemolysis assay also reveals that the complex does not release hemoglobin from human red blood cells (RBCs). Thus, the study is envisaged to open up interests for developing such formulations against cervical cancer and other cancers.
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Affiliation(s)
- Murugesan Sathiya Deepika
- Laboratory of Aquabiotics/Nanoscience, Department of Animal Science, School of Life Sciences, Bharathidasan University, Tiruchirappalli 620 024, Tamil Nadu, India
| | - Ramar Thangam
- CSIR-Central Leather Research Institute, Chennai 600 020, Tamil Nadu, India
| | - Thankaraj Salammal Sheena
- Centre for Nanoscience and Nanotechnology, Department of Physics, Bharathidasan University, Tiruchirappalli 620 024, Tamil Nadu, India
| | - Rajendran Sasirekha
- Department of Marine Science, School of Marine Sciences, Bharathidasan University, Tiruchirappalli 620 024, Tamil Nadu, India
| | | | - Manikandan Dinesh Babu
- Laboratory of Aquabiotics/Nanoscience, Department of Animal Science, School of Life Sciences, Bharathidasan University, Tiruchirappalli 620 024, Tamil Nadu, India
| | - Kulandaivel Jeganathan
- Centre for Nanoscience and Nanotechnology, Department of Physics, Bharathidasan University, Tiruchirappalli 620 024, Tamil Nadu, India
| | - Ramasamy Thirumurugan
- Laboratory of Aquabiotics/Nanoscience, Department of Animal Science, School of Life Sciences, Bharathidasan University, Tiruchirappalli 620 024, Tamil Nadu, India.
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17
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Jhonsi MA, Ananth DA, Nambirajan G, Sivasudha T, Yamini R, Bera S, Kathiravan A. Antimicrobial activity, cytotoxicity and DNA binding studies of carbon dots. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2018; 196:295-302. [PMID: 29459160 DOI: 10.1016/j.saa.2018.02.030] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/03/2017] [Revised: 02/06/2018] [Accepted: 02/07/2018] [Indexed: 05/03/2023]
Abstract
In recent years, quantum dots (QDs) are one of the most promising nanomaterials in life sciences community due to their unexploited potential in biomedical applications; particularly in bio-labeling and sensing. In the advanced nanomaterials, carbon dots (CDs) have shown promise in next generation bioimaging and drug delivery studies. Therefore the knowledge of the exact nature of interaction with biomolecules is of great interest to designing better biosensors. In this study, the interaction between CDs derived from tamarind and calf thymus DNA (ct-DNA) has been studied by vital spectroscopic techniques, which revealed that the CDs could interact with DNA via intercalation. The apparent association constant has been deduced from the absorption spectral changes of ct-DNA-CDs using the Benesi-Hildebrand equation. From the DNA induced emission quenching experiments the apparent DNA binding constant of the CDs (Kapp) have also been evaluated. Furthermore, we have analyzed the antibacterial and antifungal activity of CDs using disc diffusion assay method which exhibited excellent activity against E. coli and C. albicans with inhibition zone in the range of 7-12mm. The biocompatible nature of CDs was confirmed by an in vitro cytotoxicity test on L6 normal rat myoblast cells by using MTT assay. The cell viability is not affected till the high dosage of CDs (200μg/mL) for >48h. As a consequence of the work, future development of CDs for microbial control and DNA sensing among the various biomolecules is possible in view of emerging biofields.
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Affiliation(s)
- Mariadoss Asha Jhonsi
- Department of Chemistry, B. S. Abdur Rahman Crescent Institute of Science and Technology, Chennai 600 048, Tamil Nadu, India.
| | - Devanesan Arul Ananth
- Department of Environmental Biotechnology, Bharathidasan University, Tiruchirappalli, Tamil Nadu 620 024, India
| | - Gayathri Nambirajan
- Department of Environmental Biotechnology, Bharathidasan University, Tiruchirappalli, Tamil Nadu 620 024, India
| | - Thilagar Sivasudha
- Department of Environmental Biotechnology, Bharathidasan University, Tiruchirappalli, Tamil Nadu 620 024, India
| | - Rekha Yamini
- School of Life Sciences, B. S. Abdur Rahman Crescent Institute of Science and Technology, Chennai 600 048, Tamil Nadu, India
| | - Soumen Bera
- School of Life Sciences, B. S. Abdur Rahman Crescent Institute of Science and Technology, Chennai 600 048, Tamil Nadu, India
| | - Arunkumar Kathiravan
- National Centre for Ultrafast Processes, University of Madras, Taramani Campus, Chennai 600 113, Tamil Nadu, India
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18
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Fast sonochemically-assisted synthesis of pure and doped zinc sulfide quantum dots and their applicability in organic dye removal from aqueous media. JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY B-BIOLOGY 2018; 181:98-105. [DOI: 10.1016/j.jphotobiol.2018.02.016] [Citation(s) in RCA: 63] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/22/2017] [Revised: 01/22/2018] [Accepted: 02/14/2018] [Indexed: 11/18/2022]
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19
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Elmizadeh H, Soleimani M, Faridbod F, Bardajee GR. Ligand-Capped CdTe Quantum Dots as a Fluorescent Nanosensor for Detection of Copper Ions in Environmental Water Sample. J Fluoresc 2017; 27:2323-2333. [PMID: 28936785 DOI: 10.1007/s10895-017-2174-3] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2016] [Accepted: 08/30/2017] [Indexed: 11/28/2022]
Abstract
In this work, as a novel fluorescent nano-sensor, a ligand-capped CdTe QDs (CdTe-L QDs) was designed for the detection and quantification of Cu2+ ions in environmental water samples. The synthesized QDs were characterized by transmission electron microscopy (TEM), thermo-gravimetric (TG) analysis, Fourier transform infrared (FTIR), UV-Vis spectrophotometry and fluorescence spectroscopy. Optical properties of the produced nanosensor were monitored by UV-Vis and fluorescence spectrophotometry. It was observed that fluorescence intensity of the produced nano-sensor selectively quenched by adding Cu2+ ions in comparison to other metal ions tested. Using CdTe-L QDs, a rapid and facile analytical method was developed to determine Cu2+ ions in the concentration range of 5.16 ± 0.07 × 10- 8 mol L- 1-1.50 ± 0.03 × 10- 5 mol L- 1 with a detection limit of 1.55 ± 0.05 × 10- 8 mol L- 1. The nanosensor was successfully applied for the determination of Cu2+ ions in various water samples, and the results were compared with the standard method. Graphical Abstract.
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Affiliation(s)
- Hamideh Elmizadeh
- Department of Chemistry, Faculty of Science, Imam Khomeini International University (IKIU), PO BOX 288, Qazvin, Iran
| | - Majid Soleimani
- Department of Chemistry, Faculty of Science, Imam Khomeini International University (IKIU), PO BOX 288, Qazvin, Iran
| | - Farnoush Faridbod
- Center of Excellence in Electrochemistry, School of Chemistry, College of Science, University of Tehran, Tehran, Iran.
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20
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Bardajee GR, Hooshyar Z, Soleyman R. Nanocomposites of sodium alginate biopolymer and CdTe/ZnS quantum dots for fluorescent determination of amantadine. JOURNAL OF POLYMER RESEARCH 2017. [DOI: 10.1007/s10965-017-1247-y] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
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21
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Aucelio RQ, Carvalho JM, Real JT, Maqueira-Espinosa L, Pérez-Gramatges A, da Silva AR. Study of the interaction of flavonoids with 3-mercaptopropionic acid modified CdTe quantum dots mediated by cetyltrimethyl ammonium bromide in aqueous medium. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2017; 172:147-155. [PMID: 27106812 DOI: 10.1016/j.saa.2016.04.021] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/15/2015] [Revised: 03/15/2016] [Accepted: 04/08/2016] [Indexed: 06/05/2023]
Abstract
Flavonoids are polyphenols that help the maintenance of health, aiding the prevention of diseases. In this work, CdTe QDs coated with 3-mercaptopropionic acid (3MPA), with an average size of 2.7nm, were used as photoluminescence probe for flavonoids in different conditions. The interaction between 14 flavonoids and QDs was evaluated in aqueous dispersions in the absence and in the presence of cetyltrimethylammonium bromide (CTAB). To establish a relationship between photoluminescence quenching and the concentration of flavonoids, the Stern-Volmer model was used. In the absence of CTAB, the linear ranges for quercetin, morin and rutin were from 5.0×10-6molL-1 to 6.0×10-5molL-1 and from 1.0×10-5molL-1 to 6.0×10-4molL-1 for kaempferol. The sensibility of the Stern-Volmer curves (Ks) indicated that quercetin interacts more strongly with the probe: Ks quercetin>Ks kaempferol>Ks rutin>Ks morin. The conjugation extension in the 3 rings, and the acidic hydroxyl groups (positions 3'and 4') in the B-ring enhanced the interaction with 3MPA-CdTe QDs. The other flavonoids do not interact with the probe at 10-5molL-1 level. In CTAB organized dispersions, Ks 3-hydroxyflavone>Ks 7-hydroxyflavone>Ks flavona>Ks rutin in the range from 1.0×10-6molL-1 to 1.2×10-5molL-1 for flavones and of 1.0×10-6molL-1 to 1.0×10-5molL-1 for rutin. Dynamic light scattering, conductometric measurements and microenvironment polarity studies were employed to elucidate the QDs-flavonoids interaction in systems containing CTAB. The quenching can be attributed to the preferential solubility of hydrophobic flavonoid in the palisade layer of the CTAB aggregates adsorbed on the surface of the 3MPA CdTe QDs.
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Affiliation(s)
- Ricardo Q Aucelio
- Chemistry Department, Pontifícia Universidade Católica do Rio de Janeiro, 22451-900 Rio de Janeiro, RJ, Brazil
| | - Juliana M Carvalho
- Chemistry Department, Pontifícia Universidade Católica do Rio de Janeiro, 22451-900 Rio de Janeiro, RJ, Brazil
| | - Juliana T Real
- Chemistry Department, Pontifícia Universidade Católica do Rio de Janeiro, 22451-900 Rio de Janeiro, RJ, Brazil
| | - Luis Maqueira-Espinosa
- Chemistry Department, Pontifícia Universidade Católica do Rio de Janeiro, 22451-900 Rio de Janeiro, RJ, Brazil
| | - Aurora Pérez-Gramatges
- Chemistry Department, Pontifícia Universidade Católica do Rio de Janeiro, 22451-900 Rio de Janeiro, RJ, Brazil
| | - Andrea R da Silva
- Centro Federal de Educação Tecnológica Celso Suckow da Fonseca-CEFET/RJ, 27600-000 Valença, RJ, Brazil.
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22
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Zhang Z, Liu J, Shen P, Cao Y, Lu X, Gao X, Fu Y, Liu B, Zhang N. Zanthoxylum bungeanum pericarp extract prevents dextran sulfate sodium-induced experimental colitis in mice via the regulation of TLR4 and TLR4-related signaling pathways. Int Immunopharmacol 2016; 41:127-135. [DOI: 10.1016/j.intimp.2016.10.021] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2016] [Revised: 10/27/2016] [Accepted: 10/27/2016] [Indexed: 02/07/2023]
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23
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Galdiero E, Siciliano A, Maselli V, Gesuele R, Guida M, Fulgione D, Galdiero S, Lombardi L, Falanga A. An integrated study on antimicrobial activity and ecotoxicity of quantum dots and quantum dots coated with the antimicrobial peptide indolicidin. Int J Nanomedicine 2016; 11:4199-211. [PMID: 27616887 PMCID: PMC5008656 DOI: 10.2147/ijn.s107752] [Citation(s) in RCA: 48] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
This study attempts to evaluate the antimicrobial activity and the ecotoxicity of quantum dots (QDs) alone and coated with indolicidin. To meet this objective, we tested the level of antimicrobial activity on Gram-positive and Gram-negative bacteria, and we designed an ecotoxicological battery of test systems and indicators able to detect different effects using a variety of end points. The antibacterial activity was analyzed against Staphylococcus aureus (ATCC 6538), Pseudomonas aeruginosa (ATCC 1025), Escherichia coli (ATCC 11229), and Klebsiella pneumoniae (ATCC 10031), and the results showed an improved germicidal action of QDs-Ind. Toxicity studies on Daphnia magna indicated a decrease in toxicity for QDs-Ind compared to QDs alone, lack of bioluminescence inhibition on Vibrio fisheri, and no mutations in Salmonella typhimurium TA 100. The comet assay and oxidative stress experiments performed on D. magna showed a genotoxic and an oxidative damage with a dose-response trend. Indolicidin retained its activity when bound to QDs. We observed an enhanced activity for QDs-Ind. The presence of indolicidin on the surface of QDs was able to decrease its QDs toxicity.
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Affiliation(s)
- Emilia Galdiero
- Department of Biology, University of Naples "Federico II", Naples, Italy
| | | | - Valeria Maselli
- Department of Biology, University of Naples "Federico II", Naples, Italy
| | - Renato Gesuele
- Department of Biology, University of Naples "Federico II", Naples, Italy
| | - Marco Guida
- Department of Biology, University of Naples "Federico II", Naples, Italy
| | - Domenico Fulgione
- Department of Biology, University of Naples "Federico II", Naples, Italy
| | - Stefania Galdiero
- Department of Pharmacy and Cirpeb, University of Naples "Federico II", Naples, Italy
| | - Lucia Lombardi
- Department of Experimental Medicine, Second University of Naples, Naples, Italy
| | - Annarita Falanga
- Department of Pharmacy and Cirpeb, University of Naples "Federico II", Naples, Italy
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24
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Bardajee GR, Hooshyar Z. Probing the interaction of a new synthesized CdTe quantum dots with human serum albumin and bovine serum albumin by spectroscopic methods. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2016; 62:806-15. [DOI: 10.1016/j.msec.2016.02.022] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/28/2015] [Revised: 01/24/2016] [Accepted: 02/08/2016] [Indexed: 01/18/2023]
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25
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Bardajee GR, Hooshyar Z, Dianatnejad N. Optical and structural properties of hydrophilic CdTe quantum dots in cationic starch polymeric matrix. STARCH-STARKE 2015. [DOI: 10.1002/star.201500098] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
| | - Zari Hooshyar
- Department of Chemistry; Payame Noor University; Tehran Iran
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26
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Erenler R, Telci I, Ulutas M, Demirtas I, Gul F, Elmastas M, Kayir O. Chemical Constituents, Quantitative Analysis and Antioxidant Activities of E
chinacea purpurea
(L.) Moench and E
chinacea pallida
(Nutt.) Nutt. J Food Biochem 2015. [DOI: 10.1111/jfbc.12168] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Ramazan Erenler
- Department of Chemistry; Faculty of Art and Science; Gaziosmanpasa University; Tokat 60240 Turkey
| | - Isa Telci
- Department of Field Crops; Faculty of Agriculture; Suleyman Demirel University; Isparta Turkey
| | - Musa Ulutas
- Department of Field Crops; Faculty of Agriculture; Gaziosmanpasa University; Tokat 60240 Turkey
| | - Ibrahim Demirtas
- Department of Chemistry; Faculty of Science; Cankiri Karatekin University; Cankiri Turkey
| | - Fatih Gul
- Department of Chemistry; Faculty of Science; Cankiri Karatekin University; Cankiri Turkey
| | - Mahfuz Elmastas
- Department of Chemistry; Faculty of Art and Science; Gaziosmanpasa University; Tokat 60240 Turkey
| | - Omer Kayir
- Department of Chemistry; Faculty of Art and Science; Gaziosmanpasa University; Tokat 60240 Turkey
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