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Goswami R, Mishra A, Mishra PK, Rajput A. Linear and nonlinear regression modelling of industrial dye adsorption using nanocellulose@chitosan nanocomposite beads. Int J Biol Macromol 2024; 274:133512. [PMID: 38944080 DOI: 10.1016/j.ijbiomac.2024.133512] [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: 03/15/2024] [Revised: 05/10/2024] [Accepted: 06/26/2024] [Indexed: 07/01/2024]
Abstract
Nanocellulose@chitosan (nc@ch) composite beads were prepared via coagulation technique for the elimination of malachite green dye from aqueous solution. As malachite green dye is highly used in textile industries for dyeing purpose which after usage shows fatal effects to the ecosystems and human beings also. In this study the formulated nanocellulose@chitosan composite beads were characterized by Particle size analysis (PSA), Field emission scanning electron microscopy (FESEM), Fourier-transform infrared spectroscopy (FTIR) and X-ray diffraction (XRD) analysis were done to evaluate nanoparticles size distribution, morphological behaviour, functional group entities and degree of crystallinity of prepared beads. The nanocomposite beads adsorption performance was investigated for malachite green (MG) dye and BET analysis were also recorded to know about porous behaviour of the nanocomposite beads. Maximum removal of malachite green (MG) dye was found to be 72.0 mg/g for 100 ppm initial dye concentration. For accurate observations linear and non-linear modelling was done to know about the best-fitted adsorption model during the removal mechanism of dye molecules, on evaluating it has been observed that Langmuir isotherm and Freundlich isotherm show best-fitted observation in the case of linear and non-linear isotherm respectively (R2 = 0.96 & R2 = 0.957). In the case of kinetic linear models, the data was well fitted with pseudo-second-order showing chemosorption mechanism (R2 = 0.999), and in the case of non-linear kinetic model pseudo first order showed good fit showing physisorption mechanism during adsorption (R2 = 0.999). The thermodynamic study showed positive values for ΔH° and ΔS° throughout the adsorption process respectively, implying an endothermic behaviour. In view of cost effectiveness, desorption or regeneration study was done and it was showed that after the 5th cycle, the removal tendency had decreased from 48 to 38 % for 20-100 ppm dye solution accordingly. Thus, nanocomposite beads prepared by the coagulation method seem to be a suitable candidate for dye removal from synthetic wastewater and may have potential to be used in small scale textile industries for real wastewater treatment.
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Affiliation(s)
- Rekha Goswami
- Department of Environmental Science, Graphic Era Hill University, Dehradun, Uttarakhand, India
| | - Abhilasha Mishra
- Department of Chemistry, Graphic Era (Deemed to be) University, Dehradun, Uttarakhand, India.
| | - Pawan Kumar Mishra
- Department of Computer Science and Engineering, Graphic Era (Deemed to be) University, Dehradun, Uttarakhand, India
| | - Akanksha Rajput
- Department of Chemistry, Graphic Era (Deemed to be) University, Dehradun, Uttarakhand, India
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2
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Yektamanesh M, Ayyami Y, Ghorbani M, Dastgir M, Malekzadeh R, Mortezazadeh T. Characterization of multifunctional β-cyclodextrin-coated Bi 2O 3 nanoparticles conjugated with curcumin for CT imaging-guided synergetic chemo-radiotherapy in breast cancer. Int J Pharm 2024; 659:124264. [PMID: 38788969 DOI: 10.1016/j.ijpharm.2024.124264] [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: 01/09/2024] [Revised: 05/20/2024] [Accepted: 05/21/2024] [Indexed: 05/26/2024]
Abstract
Nanotechnology-based diagnostic, and therapeutic approaches revolutionized the field of cancer detection, and treatment, offering tremendous potential for cost-effective interventions in the early stages of disease. This research synthesized bismuth oxide (Bi2O3) nanoparticles (NPs) that were modified with polycyclodextrin (PCD), and functionalized with glucose (Glu) to load curcumin (CUR) for CT imaging and chemo-radiotherapy applications in Breast Cancer. The prepared Bi2O3@PCD-CUR-Glu NPs underwent comprehensive characterization, encompassing various aspects, including cell migration, cytotoxicity, cellular uptake, blood compatibility, reactive oxygen species (ROS) generation ability, real-time PCR analysis, in-vivo safety assessment, in-vivo anti-tumor efficacy, as well as in-vitro CT contrast and X-ray RT enhancement evaluation. CT scan was conducted before and after (1 and 3 h) intravenous injection of Bi2O3@PCD-CUR-Glu NPs. Through the use of coupled plasma optical emission spectrometry (ICP-OES) analysis, the final prepared nanoparticle distribution in the Bab/c mice was assessed. The spherical NPs that were ultimately synthesized and had a diameter of around 80 nm demonstrated exceptional toxicity towards the SKBr-3 breast cancer cell line. The cell viability was at its lowest level after 48 h of exposure to a radiation dose of 2 Gy at a concentration of 100 µg/mL. The combined treatment involving using Bi2O3@PCD-CUR-Glu NPs along with X-ray radiation showed a substantial increase in the generation of ROS, specifically a remarkable 420 % growth. Gene expression analysis indicated that the expression levels of P53, and BAX pro-apoptotic genes were significantly increased. The in-vitro CT imaging analysis conducted unequivocally demonstrated the notable superiority of NPs over Omnipaque in terms of X-ray absorption capacity, a staggering 1.52-fold increase at 80 kVp. The resultsdemonstrated that the targeted Bi2O3@PCD-CUR-Glu NPs could enhance the visibility of a small mice tumor that is detectable by computed tomography and made visible through X-ray attenuation. Results suggested that Bi2O3@PCD-CUR-Glu NPs, integrated with CT imaging and chemo-radiotherapy, have great potential as a versatile theranostic system for clinical application.
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Affiliation(s)
- Maedeh Yektamanesh
- Nutrition Research Center, Tabriz University of Medical Sciences, Tabriz, Iran; Department of Medical Physics, School of Medicine, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Yasin Ayyami
- Department of Medical Physics, School of Medicine, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Marjan Ghorbani
- Iran Polymer and Petrochemical Institute, P.O. Box:14965/115, Tehran, Iran
| | - Masoumeh Dastgir
- Department of Medical Physics, School of Medicine, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Reza Malekzadeh
- Department of Medical Physics, School of Medicine, Tabriz University of Medical Sciences, Tabriz, Iran.
| | - Tohid Mortezazadeh
- Nutrition Research Center, Tabriz University of Medical Sciences, Tabriz, Iran; Department of Medical Physics, School of Medicine, Tabriz University of Medical Sciences, Tabriz, Iran.
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Abid HR, Azhar MR, Iglauer S, Rada ZH, Al-Yaseri A, Keshavarz A. Physiochemical characterization of metal organic framework materials: A mini review. Heliyon 2024; 10:e23840. [PMID: 38192763 PMCID: PMC10772179 DOI: 10.1016/j.heliyon.2023.e23840] [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: 08/23/2023] [Revised: 11/30/2023] [Accepted: 12/13/2023] [Indexed: 01/10/2024] Open
Abstract
Metal-organic frameworks (MOFs) are promising materials offering exceptional performance across a myriad of applications, attributable to their remarkable physicochemical properties such as regular porosity, crystalline structure, and tailored functional groups. Despite their potential, there is a lack of dedicated reviews that focus on key physicochemical characterizations of MOFs for the beginners and new researchers in the field. This review is written based on our expertise in the synthesis and characterization of MOFs, specifically to provide a right direction for the researcher who is a beginner in this area. In this way, experimental errors can be reduced, and wastage of time and chemicals can be avoided when new researchers conduct a study. In this article, this topic is critically analyzed, and findings and conclusions are presented. We reviewed three well-known XRD techniques, including PXRD, single crystal XRD, and SAXS, which were used for XRD analysis depending on the crystal size and the quality of crystal morphology. The TGA profile was an effective factor for evaluating the quality of the activation process and for ensuring the successful investigation for other characterizations. The BET and pore size were significantly affected by the activation process and selective benzene chain cross-linkers. FTIR is a prominent method that is used to investigate the functional groups on pore surfaces, and this method is successfully used to evaluate the activation process, characterize functionalized MOFs, and estimate their applications. The most significant methods of characterization include the X-ray diffraction, which is utilized for structural identification, and thermogravimetric analysis (TGA), which is used for exploring thermal decomposition. It is important to note that the thermal stability of MOFs is influenced by two main factors: the metal-ligand interaction and the type of functional groups attached to the organic ligand. The textural properties of the MOFs, on the other hand, can be scrutinized through nitrogen adsorption-desorption isotherms experiments at 77 K. However, for smaller pore size, the Argon adsorption-desorption isotherm at 87.3 K is preferred. Furthermore, the CO2 adsorption isotherm at 273 K can be used to measure ultra-micropore sizes and sizes lower than these, which cannot be measured by using the N2 adsorption-desorption isotherm at 77 K. The highest BET was observed in high-valence MOFs that are constructed based on the metal-oxo cluster, which has an excellent ability to control their textural properties. It was found that the synthesis procedure (including the choice of solvent, cross-linker, secondary metal, surface functional groups, and temperature), activation method, and pressure significantly impact the surface area of the MOF and, by extension, its structural integrity. Additionally, Fourier-transform infrared spectroscopy plays a crucial role in identifying active MOF functional groups. Understanding these physicochemical properties and utilizing relevant characterization techniques will enable more precise MOF selection for specific applications.
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Affiliation(s)
- Hussein Rasool Abid
- Energy and Resource Discipline, School of Engineering, Edith Cowan University, Joondalup, WA 6027, Australia
- Environmental Health Department, Applied Medical Sciences, University of Kerbala, Karbala 56001, Iraq
| | - Muhammad Rizwan Azhar
- Chemical Engineering Discipline, School of Engineering, Edith Cowan University, Joondalup, WA
| | - Stefan Iglauer
- Energy and Resource Discipline, School of Engineering, Edith Cowan University, Joondalup, WA 6027, Australia
| | - Zana Hassan Rada
- Energy and Resource Discipline, School of Engineering, Edith Cowan University, Joondalup, WA 6027, Australia
| | - Ahmed Al-Yaseri
- College of Petroleum Engineering and Geoscience, King Fahd University of Petroleum and Minerals, Saudi Arabia
| | - Alireza Keshavarz
- Energy and Resource Discipline, School of Engineering, Edith Cowan University, Joondalup, WA 6027, Australia
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Ashraf S, Liu Y, Wei H, Shen R, Zhang H, Wu X, Mehdi S, Liu T, Li B. Bimetallic Nanoalloy Catalysts for Green Energy Production: Advances in Synthesis Routes and Characterization Techniques. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2023; 19:e2303031. [PMID: 37356067 DOI: 10.1002/smll.202303031] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/11/2023] [Revised: 05/22/2023] [Indexed: 06/27/2023]
Abstract
Bimetallic Nanoalloy catalysts have diverse uses in clean energy, sensing, catalysis, biomedicine, and energy storage, with some supported and unsupported catalysts. Conventional synthetic methods for producing bimetallic alloy nanoparticles often produce unalloyed and bulky particles that do not exhibit desired characteristics. Alloys, when prepared with advanced nanoscale methods, give higher surface area, activity, and selectivity than individual metals due to changes in their electronic properties and reduced size. This review demonstrates the synthesis methods and principles to produce and characterize highly dispersed, well-alloyed bimetallic nanoalloy particles in relatively simple, effective, and generalized approaches and the overall existence of conventional synthetic methods with modifications to prepare bimetallic alloy catalysts. The basic concepts and mechanistic understanding are represented with purposely selected examples. Herein, the enthralling properties with widespread applications of nanoalloy catalysts in heterogeneous catalysis are also presented, especially for Hydrogen Evolution Reaction (HER), Oxidation Reduction Reaction (ORR), Oxygen Evolution Reaction (OER), and alcohol oxidation with a particular focus on Pt and Pd-based bimetallic nanoalloys and their numerous fields of applications. The high entropy alloy is described as a complicated subject with an emphasis on laser-based green synthesis of nanoparticles and, in conclusion, the forecasts and contemporary challenges for the controlled synthesis of nanoalloys are addressed.
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Affiliation(s)
- Saima Ashraf
- Research Center of Green Catalysis, College of Chemistry, Zhengzhou University, 100 Science Road, Zhengzhou, 450001, P. R. China
| | - Yanyan Liu
- Research Center of Green Catalysis, College of Chemistry, Zhengzhou University, 100 Science Road, Zhengzhou, 450001, P. R. China
- College of Science, Henan Agricultural University, 63 Nongye Road, Zhengzhou, 450002, P. R. China
| | - Huijuan Wei
- Research Center of Green Catalysis, College of Chemistry, Zhengzhou University, 100 Science Road, Zhengzhou, 450001, P. R. China
| | - Ruofan Shen
- Research Center of Green Catalysis, College of Chemistry, Zhengzhou University, 100 Science Road, Zhengzhou, 450001, P. R. China
| | - Huanhuan Zhang
- Research Center of Green Catalysis, College of Chemistry, Zhengzhou University, 100 Science Road, Zhengzhou, 450001, P. R. China
| | - Xianli Wu
- Research Center of Green Catalysis, College of Chemistry, Zhengzhou University, 100 Science Road, Zhengzhou, 450001, P. R. China
| | - Sehrish Mehdi
- Research Center of Green Catalysis, College of Chemistry, Zhengzhou University, 100 Science Road, Zhengzhou, 450001, P. R. China
| | - Tao Liu
- CAS Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety, National Center for Nanoscience and Technology, Beijing, 100190, P. R. China
| | - Baojun Li
- Research Center of Green Catalysis, College of Chemistry, Zhengzhou University, 100 Science Road, Zhengzhou, 450001, P. R. China
- Department of Chemistry, Tsinghua University, Beijing, 100084, P. R. China
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5
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Wojtalewicz S, Erickson S, Vizmeg J, Shuckra J, Barger K, Cleveland A, Davis J, Niederauer S, Beeman M, Panic V, Wilcox K, Metcalf C, Agarwal J, Lade C, Davis B. Assessment of glyceride-structured oleogels as an injectable extended-release delivery system of bupivacaine. Int J Pharm 2023; 637:122887. [PMID: 36990171 DOI: 10.1016/j.ijpharm.2023.122887] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2023] [Revised: 03/15/2023] [Accepted: 03/21/2023] [Indexed: 03/29/2023]
Abstract
This manuscript systematically assesses three different glycerides (tripalmitin, glyceryl monostearate, and a blend of mono-, di- and triesters of palmitic and stearic acids (Geleol™)) as potential gelator structuring agents of medium-chain triglyceride oil to form an oleogel-based injectable long-acting local anesthetic formulation for postoperative pain management. Drug release testing, oil-binding capacity, injection forces, x-ray diffraction, differential scanning calorimetry, and rheological testing were serially performed to characterize the functional properties of each oleogel. After benchtop assessment, the superior bupivacaine-loaded oleogel formulation was compared to bupivacaine HCl, liposomal bupivacaine, and bupivacaine-loaded medium-chain triglyceride oil in a rat sciatic nerve block model to assess in vivo long-acting local anesthetic performance. In vitro drug release kinetics were similar for all formulations, indicating that drug release rate is primarily dependent on the drug's affinity to the base oil. Glyceryl monostearate-based formulations had superior shelf-life and thermal stability. The glyceryl monostearate oleogel formulation was selected for in vivo evaluation. It was found to have a significantly longer duration of anesthetic effect than liposomal bupivacaine and was able to provide anesthesia twice as long as the equipotent bupivacaine-loaded medium-chain triglyceride oil, indicating that the increased viscosity of the oleogel provided enhanced controlled release over the drug-loaded oil alone.
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Xulu JH, Ndongwe T, Ezealisiji KM, Tembu VJ, Mncwangi NP, Witika BA, Siwe-Noundou X. The Use of Medicinal Plant-Derived Metallic Nanoparticles in Theranostics. Pharmaceutics 2022; 14:2437. [PMID: 36365255 PMCID: PMC9698412 DOI: 10.3390/pharmaceutics14112437] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2022] [Revised: 10/30/2022] [Accepted: 11/01/2022] [Indexed: 08/20/2023] Open
Abstract
In the quest to effectively diagnose and treat the diseases that afflict mankind, the development of a tool capable of simultaneous detection and treatment would provide a significant cornerstone for the survival and control of these diseases. Theranostics denotes a portmanteau of therapeutics and diagnostics which simultaneously detect and treat ailments. Research advances have initiated the advent of theranostics in modern medicine. Overall, theranostics are drug delivery systems with molecular or targeted imaging agents integrated into their structure. The application of theranostics is rising exponentially due to the urgent need for treatments that can be utilized for diagnostic imaging as an aid in precision and personalised medicine. Subsequently, the emergence of nanobiotechnology and the green synthesis of metallic nanoparticles (MNPs) has provided one such avenue for nanoscale development and research. Of interest is the drastic rise in the use of medicinal plants in the synthesis of MNPs which have been reported to be potentially effective in the diagnosis and treatment of diseases. At present, medicinal plant-derived MNPs have been cited to have broad pharmacological applications and have been studied for their potential use in the treatment and management of cancer, malaria, microbial and cardiovascular diseases. The subject of this article regards the role of medicinal plants in the synthesis of MNPs and the potential role of MNPs in the field of theranostics.
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Affiliation(s)
- Jabulile Happiness Xulu
- Department of Pharmaceutical Sciences, School of Pharmacy, Sefako Makgatho Health Sciences University, Pretoria 0204, South Africa
| | - Tanaka Ndongwe
- Department of Pharmaceutical Sciences, School of Pharmacy, Sefako Makgatho Health Sciences University, Pretoria 0204, South Africa
| | - Kenneth M. Ezealisiji
- Department of Pharmaceutical and Medicinal Chemistry, Faculty of Pharmaceutical Sciences, University of Port Harcourt, PMB 5323 Choba, Rivers State, Nigeria
| | - Vuyelwa J. Tembu
- Department of Chemistry, Tshwane University of Technology, Pretoria 0001, South Africa
| | - Nontobeko P. Mncwangi
- Department of Pharmacy Practice, School of Pharmacy, Sefako Makgatho Health Sciences University, MEDUNSA, Pretoria 0204, South Africa
| | - Bwalya A. Witika
- Department of Pharmaceutical Sciences, School of Pharmacy, Sefako Makgatho Health Sciences University, Pretoria 0204, South Africa
| | - Xavier Siwe-Noundou
- Department of Pharmaceutical Sciences, School of Pharmacy, Sefako Makgatho Health Sciences University, Pretoria 0204, South Africa
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7
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On Recent Developments in Biosynthesis and Application of Au and Ag Nanoparticles from Biological Systems. JOURNAL OF NANOTECHNOLOGY 2022. [DOI: 10.1155/2022/5560244] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023] Open
Abstract
Gold nanoparticles (AuNPs) and silver nanoparticles (AgNPs) are extensively studied nanoparticles (NPs) and are known to have profound applications in medicine. The researcher made continuous efforts for the environmental-friendly and economical methods, such as biogenic methods known as green synthesis. There are many strategies for separating and applying gold (Au) and silver (Ag) nanoparticles, of which biological routes have emerged as efficient, low-cost, and environmentally friendly techniques. This review focuses on recent developments of green synthesized AuNPs and AgNPs using biogenic sources such as algae, animals, plants, microbes, bacteria, fungi, and so on. Hence, it discusses their numerous biomedical applications and separating Au and Ag nanoparticles from plants, bacteria, fungi, and algae.
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Green Synthesis of Silver Nanoparticles Using Musa balbisiana and Their Cytotoxic Effect on HL-60 and SiHa Cancer Cells Through Clathrin-Mediated Endocytosis. BIONANOSCIENCE 2022. [DOI: 10.1007/s12668-022-00955-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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9
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Behera A, Pradhan SP, Ahmed FK, Abd-Elsalam KA. Enzymatic synthesis of silver nanoparticles: Mechanisms and applications. GREEN SYNTHESIS OF SILVER NANOMATERIALS 2022:699-756. [DOI: 10.1016/b978-0-12-824508-8.00030-7] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/01/2023]
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10
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Zaki A, Aziz MN, Ahmad R, Ahamad I, Ali MS, Yasin D, Afzal B, Ali SM, Chopra A, Hadda V, Srivastava P, Kumar R, Fatma T. Synthesis, purification and characterization of Plectonema derived AgNPs with elucidation of the role of protein in nanoparticle stabilization. RSC Adv 2022; 12:2497-2510. [PMID: 35425239 PMCID: PMC8979216 DOI: 10.1039/d1ra08396a] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2021] [Accepted: 01/03/2022] [Indexed: 11/21/2022] Open
Abstract
Driven by the need to biosynthesize alternate biomedical agents to prevent and treat infection, silver nanoparticles have surfaced as a promising avenue. Cyanobacteria-derived nanomaterial synthesis is of substantive interest as it offers an eco-friendly, cost-effective, sustainable, and biocompatible route for further development. In the present study optimal conditions for synthesis of silver nanoparticles (AgNPs) were 1 : 9 v/v [cell extract: AgNO3 (1 mM)], pH 7.4, and 30 °C reaction temperatures. Synthesis of nanoparticles was monitored by UV-vis spectrophotometry and the maximum absorbance was observed at a wavelength of 420 nm. SEM with EDX analysis confirmed 96.85% silver by weight which revealed the purity of AgNPs. TEM & XRD analysis exhibited a particle size of ∼12 nm with crystalline nature. FTIR analysis confirmed the presence of possible biomolecules involved in the synthesis and stabilization of AgNPs. Decapping of AgNPs followed by SDS-PAGE, LCMS and MALDI TOF analysis elucidates the proteinaceous nature of the capping and stabilizing agent. Cyanobacterial-derived capped AgNPs showed more cytotoxicicity towards a non-small cell lung cancer (A549) cell line, free radical scavenger and an antimicrobial than de-capped AgNPs. In addition they showed significant synergistic characteristics with antibiotics and fungicides. The test revealed that the capped AgNPs were biocompatible with good anti-inflammatory properties. The blend of antimicrobial and biocompatible properties, coupled with their intrinsic “green” and facile synthesis, made these biogenic nanoparticles particularly attractive for future applications in nanomedicine. Illuminating the role of protein on the surface of cyanobacterial derived capped, decapped AgNPs and its biomedical application.![]()
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Affiliation(s)
- Almaz Zaki
- Department of Biosciences, Jamia Millia Islamia, New Delhi, India
- Department of Biotechnology, Jamia Millia Islamia, New Delhi, India
| | - Md. Nafe Aziz
- Department of Biosciences, Jamia Millia Islamia, New Delhi, India
| | - Rakhshan Ahmad
- Department of Biosciences, Jamia Millia Islamia, New Delhi, India
| | - Irshad Ahamad
- Department of Biosciences, Jamia Millia Islamia, New Delhi, India
| | - M. Shadab Ali
- Lab Oncology, All India Institute of Medical Sciences, New Delhi, India
- Department of Pulmonary, Critical Care and Sleep Medicine, All India Institute of Medical Sciences, New Delhi, India
| | - Durdana Yasin
- Department of Biosciences, Jamia Millia Islamia, New Delhi, India
| | - Bushra Afzal
- Department of Biosciences, Jamia Millia Islamia, New Delhi, India
| | - Syed Mansoor Ali
- Department of Biotechnology, Jamia Millia Islamia, New Delhi, India
| | - Anita Chopra
- Lab Oncology, All India Institute of Medical Sciences, New Delhi, India
| | - Vijay Hadda
- Department of Pulmonary, Critical Care and Sleep Medicine, All India Institute of Medical Sciences, New Delhi, India
| | - Pooja Srivastava
- Institute of Nuclear Medicine & Allied Sciences (INMAS), Defense Research & Development Organization (DRDO), Government of India, New Delhi, India
| | - Raj Kumar
- Institute of Nuclear Medicine & Allied Sciences (INMAS), Defense Research & Development Organization (DRDO), Government of India, New Delhi, India
| | - Tasneem Fatma
- Department of Biosciences, Jamia Millia Islamia, New Delhi, India
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Jain AS, Pawar PS, Sarkar A, Junnuthula V, Dyawanapelly S. Bionanofactories for Green Synthesis of Silver Nanoparticles: Toward Antimicrobial Applications. Int J Mol Sci 2021; 22:11993. [PMID: 34769419 PMCID: PMC8584914 DOI: 10.3390/ijms222111993] [Citation(s) in RCA: 44] [Impact Index Per Article: 14.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2021] [Revised: 11/01/2021] [Accepted: 11/03/2021] [Indexed: 12/24/2022] Open
Abstract
Among the various types of nanoparticles and their strategy for synthesis, the green synthesis of silver nanoparticles has gained much attention in the biomedical, cellular imaging, cosmetics, drug delivery, food, and agrochemical industries due to their unique physicochemical and biological properties. The green synthesis strategies incorporate the use of plant extracts, living organisms, or biomolecules as bioreducing and biocapping agents, also known as bionanofactories for the synthesis of nanoparticles. The use of green chemistry is ecofriendly, biocompatible, nontoxic, and cost-effective. We shed light on the recent advances in green synthesis and physicochemical properties of green silver nanoparticles by considering the outcomes from recent studies applying SEM, TEM, AFM, UV/Vis spectrophotometry, FTIR, and XRD techniques. Furthermore, we cover the antibacterial, antifungal, and antiparasitic activities of silver nanoparticles.
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Affiliation(s)
- Ashvi Sanjay Jain
- Department of Pharmaceutical Sciences & Technology, Institute of Chemical Technology, Nathalal Parekh Marg, Matunga, Mumbai 400019, India; (A.S.J.); (P.S.P.)
| | - Pranita Subhash Pawar
- Department of Pharmaceutical Sciences & Technology, Institute of Chemical Technology, Nathalal Parekh Marg, Matunga, Mumbai 400019, India; (A.S.J.); (P.S.P.)
| | - Aira Sarkar
- Chemical and Biomolecular Engineering, Johns Hopkins University, Baltimore, MD 21218, USA;
| | | | - Sathish Dyawanapelly
- Department of Pharmaceutical Sciences & Technology, Institute of Chemical Technology, Nathalal Parekh Marg, Matunga, Mumbai 400019, India; (A.S.J.); (P.S.P.)
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12
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Romano M, Bravin A, Mittone A, Eckhardt A, Barbone GE, Sancey L, Dinkel J, Bartzsch S, Ricke J, Alunni-Fabbroni M, Hirner-Eppeneder H, Karpov D, Giannini C, Bunk O, Bouchet A, Ruf V, Giese A, Coan P. A Multi-Scale and Multi-Technique Approach for the Characterization of the Effects of Spatially Fractionated X-ray Radiation Therapies in a Preclinical Model. Cancers (Basel) 2021; 13:cancers13194953. [PMID: 34638437 PMCID: PMC8507698 DOI: 10.3390/cancers13194953] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2021] [Revised: 09/23/2021] [Accepted: 09/27/2021] [Indexed: 12/15/2022] Open
Abstract
The purpose of this study is to use a multi-technique approach to detect the effects of spatially fractionated X-ray Microbeam (MRT) and Minibeam Radiation Therapy (MB) and to compare them to seamless Broad Beam (BB) irradiation. Healthy- and Glioblastoma (GBM)-bearing male Fischer rats were irradiated in-vivo on the right brain hemisphere with MRT, MB and BB delivering three different doses for each irradiation geometry. Brains were analyzed post mortem by multi-scale X-ray Phase Contrast Imaging-Computed Tomography (XPCI-CT), histology, immunohistochemistry, X-ray Fluorescence (XRF), Small- and Wide-Angle X-ray Scattering (SAXS/WAXS). XPCI-CT discriminates with high sensitivity the effects of MRT, MB and BB irradiations on both healthy and GBM-bearing brains producing a first-time 3D visualization and morphological analysis of the radio-induced lesions, MRT and MB induced tissue ablations, the presence of hyperdense deposits within specific areas of the brain and tumor evolution or regression with respect to the evaluation made few days post-irradiation with an in-vivo magnetic resonance imaging session. Histology, immunohistochemistry, SAXS/WAXS and XRF allowed identification and classification of these deposits as hydroxyapatite crystals with the coexistence of Ca, P and Fe mineralization, and the multi-technique approach enabled the realization, for the first time, of the map of the differential radiosensitivity of the different brain areas treated with MRT and MB. 3D XPCI-CT datasets enabled also the quantification of tumor volumes and Ca/Fe deposits and their full-organ visualization. The multi-scale and multi-technique approach enabled a detailed visualization and classification in 3D of the radio-induced effects on brain tissues bringing new essential information towards the clinical implementation of the MRT and MB radiation therapy techniques.
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Affiliation(s)
- Mariele Romano
- Department of Medical Physics, Faculty of Physics, Ludwig-Maximilians-Universität, Am Coulombwall 1, München, 85748 Garching, Germany; (M.R.); (A.E.); (G.E.B.)
| | - Alberto Bravin
- European Synchrotron Radiation Facility, 71 Avenue des Martyrs, 38000 Grenoble, France; (A.B.); (A.M.); (D.K.)
- Department of Physics, Faculty of Physics, University of Milano-Bicocca, 20126 Milan, Italy
| | - Alberto Mittone
- European Synchrotron Radiation Facility, 71 Avenue des Martyrs, 38000 Grenoble, France; (A.B.); (A.M.); (D.K.)
- CELLS-ALBA Synchrotron, 08290 Cerdanyola del Valles, Spain
| | - Alicia Eckhardt
- Department of Medical Physics, Faculty of Physics, Ludwig-Maximilians-Universität, Am Coulombwall 1, München, 85748 Garching, Germany; (M.R.); (A.E.); (G.E.B.)
| | - Giacomo E. Barbone
- Department of Medical Physics, Faculty of Physics, Ludwig-Maximilians-Universität, Am Coulombwall 1, München, 85748 Garching, Germany; (M.R.); (A.E.); (G.E.B.)
- Department of Radiology, University Hospital, Ludwig-Maximilians-Universität, 81377 Munich, Germany; (J.D.); (J.R.); (M.A.-F.); (H.H.-E.)
| | - Lucie Sancey
- Centre de Recherche UGA/INSERM U1209/CNRS UMR5309, Institute for Advanced Biosciences, 38700 La Tronche, France;
| | - Julien Dinkel
- Department of Radiology, University Hospital, Ludwig-Maximilians-Universität, 81377 Munich, Germany; (J.D.); (J.R.); (M.A.-F.); (H.H.-E.)
| | - Stefan Bartzsch
- Department of Radiation Oncology, School of Medicine, Technical University of Munich, Klinikum Rechts der Isar, 81675 Munich, Germany;
- Department of Radiation Sciences (DRS), Institute of Radiation Medicine (IRM), Helmholtz Zentrum München, 85764 Neuherberg, Germany
| | - Jens Ricke
- Department of Radiology, University Hospital, Ludwig-Maximilians-Universität, 81377 Munich, Germany; (J.D.); (J.R.); (M.A.-F.); (H.H.-E.)
| | - Marianna Alunni-Fabbroni
- Department of Radiology, University Hospital, Ludwig-Maximilians-Universität, 81377 Munich, Germany; (J.D.); (J.R.); (M.A.-F.); (H.H.-E.)
| | - Heidrun Hirner-Eppeneder
- Department of Radiology, University Hospital, Ludwig-Maximilians-Universität, 81377 Munich, Germany; (J.D.); (J.R.); (M.A.-F.); (H.H.-E.)
| | - Dmitry Karpov
- European Synchrotron Radiation Facility, 71 Avenue des Martyrs, 38000 Grenoble, France; (A.B.); (A.M.); (D.K.)
- Swiss Light Source, Paul Scherrer Institute, 5232 Villigen, Switzerland;
| | - Cinzia Giannini
- Institute of Crystallography, National Research Council, 70126 Bari, Italy;
| | - Oliver Bunk
- Swiss Light Source, Paul Scherrer Institute, 5232 Villigen, Switzerland;
| | - Audrey Bouchet
- Inserm U1296 Unit “Radiation: Defense, Health Environment”, 69008 Lyon, France;
| | - Viktoria Ruf
- Center for Neuropathology and Prion Research, Ludwig-Maximilians-Universität, 81377 Munich, Germany; (V.R.); (A.G.)
| | - Armin Giese
- Center for Neuropathology and Prion Research, Ludwig-Maximilians-Universität, 81377 Munich, Germany; (V.R.); (A.G.)
| | - Paola Coan
- Department of Medical Physics, Faculty of Physics, Ludwig-Maximilians-Universität, Am Coulombwall 1, München, 85748 Garching, Germany; (M.R.); (A.E.); (G.E.B.)
- Department of Radiology, University Hospital, Ludwig-Maximilians-Universität, 81377 Munich, Germany; (J.D.); (J.R.); (M.A.-F.); (H.H.-E.)
- Correspondence:
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13
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Ahuja V, Banerjee S, Roy P, Bhatt AK. Fluorescent xylitol carbon dots: A potent antimicrobial agent and drug carrier. Biotechnol Appl Biochem 2021; 69:1679-1689. [PMID: 34363245 DOI: 10.1002/bab.2237] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2021] [Accepted: 07/30/2021] [Indexed: 01/03/2023]
Abstract
Biomolecular carbon dots (CDs) have immense potential for various industries due to exceptional bioactivity, biocompatibility, low toxicity, and biodegradability. In the present work xylitol (Xlt), a natural sweetener produced by microbial fermentation of sugarcane bagasse (71.98% conversion) has been used for CDs preparation by microwave-assisted carbonization in the presence of ethylene diamine (EDA). The resultant xylitol carbon dots (XCDs) were irregular shaped, rough with an average size of 8.88 nm and exhibiting fluorescence between 400 and 450 nm. The presence of EDA preserves the native chemical structure of Xlt even after exposure to microwaves. Purified XCDs were conjugated (AM-XCD) with ketoconazole and tetracycline for fungi and bacteria, respectively. In comparison to Xlt, XCDs have higher inhibitory potential and reduced dosage size of antimicrobials against Cryptococcus neoformans, Candida albicans, Streptococcus pyogenes, and Escherichia coli by 75%, 75%, 87.50%, and 50%, respectively. For Listeria monocytogenes and Salmonella typhi also inhibitory potential was increased by 14.68% and 21.38%. Increased efficacy advocated the improved drug delivery in the presence of XCDs. However, no inhibitory effect was recorded against DU145 (human prostate cancer) and HCT-15 (human colon adenocarcinoma) cell lines. The findings of the current work suggested the possible use of Xlt as an important antimicrobial agent besides an efficient drug carrier in healthcare.
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Affiliation(s)
- Vishal Ahuja
- Department of Biotechnology, Himachal Pradesh University, Shimla, India
| | - Somesh Banerjee
- Molecular Endocrinology Laboratory, Biotechnology Department, Indian Institute of Technology Roorkee, Roorkee, India
| | - Partha Roy
- Molecular Endocrinology Laboratory, Biotechnology Department, Indian Institute of Technology Roorkee, Roorkee, India
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14
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Degli Esposti L, Adamiano A, Siliqi D, Giannini C, Iafisco M. The effect of chemical structure of carboxylate molecules on hydroxyapatite nanoparticles. A structural and morphological study. Bioact Mater 2021; 6:2360-2371. [PMID: 33553821 PMCID: PMC7844063 DOI: 10.1016/j.bioactmat.2021.01.010] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2020] [Revised: 01/07/2021] [Accepted: 01/09/2021] [Indexed: 12/30/2022] Open
Abstract
Being the most abundant non-macromolecular organic component of bone, the role of citrate (Cit) in hydroxyapatite (HA) crystallization is of high relevance. In this work we have investigated the influence of hydroxycitrate (CitOH) and glutarate (Glr) on HA crystallization in terms of particle growth, composition, and morphology in comparison to Cit. CitOH and Glr have been selected for this work because they share the same backbone structure of Cit but bear different functional groups in the central region. Our data has revealed that CitOH strongly inhibits HA crystallization more efficiently than Cit. CitOH-HA nanoparticles are composed of platy, elongated particles similar to those of Cit-HA but they are ca. twice smaller and have a lower crystal order. On the other hand, Glr does not inhibit HA crystallization as Cit, but leads to the formation of OCP platelets that convert with maturation time to HA nanorods with larger aspect ratio than Cit-HA. In comparison to Cit-HA samples, Glr-HA nanoparticles have bigger dimensions, and higher structural order. Overall, our data reveal that the central carboxyl group of Cit is involved in the selective binding with HA crystal surface and in regulating HA crystal growth. The results of this work highlight new possibilities to control the formation of HA for designing advanced bioactive materials and give new insights on the role of the structure of Cit in regulating the HA morphology.
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Affiliation(s)
- Lorenzo Degli Esposti
- Institute of Science and Technology for Ceramics (ISTEC), National Research Council (CNR), Via Granarolo 64, 48018, Faenza, Italy
| | - Alessio Adamiano
- Institute of Science and Technology for Ceramics (ISTEC), National Research Council (CNR), Via Granarolo 64, 48018, Faenza, Italy
| | - Dritan Siliqi
- Institute of Crystallography (IC), National Research Council (CNR), Via Amendola 122/O, 70126, Bari, Italy
| | - Cinzia Giannini
- Institute of Crystallography (IC), National Research Council (CNR), Via Amendola 122/O, 70126, Bari, Italy
| | - Michele Iafisco
- Institute of Science and Technology for Ceramics (ISTEC), National Research Council (CNR), Via Granarolo 64, 48018, Faenza, Italy
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15
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Ramohlola KE, Iwuoha EI, Hato MJ, Modibane KD. Instrumental Techniques for Characterization of Molybdenum Disulphide Nanostructures. JOURNAL OF ANALYTICAL METHODS IN CHEMISTRY 2020; 2020:8896698. [PMID: 33381353 PMCID: PMC7758135 DOI: 10.1155/2020/8896698] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 07/01/2020] [Revised: 11/10/2020] [Accepted: 11/27/2020] [Indexed: 06/12/2023]
Abstract
The excellent chemical and physical properties of materials (nanomaterials) with dimensions of less than 100 nm (nanometers) resulted in researchers and industrialists to have great interest in their discovery and applications in various systems/applications. As their sizes are reduced to nanoscale, these nanomaterials tend to possess exceptional properties differing from those of their bulk counterparts; hence, they have found applications in electronics and medicines. In order to apply them in those applications, there is a need to synthesise these nanomaterials and study their structural, optical, and electrochemical properties. Among several nanomaterials, molybdenum disulphide (MoS2) has received a great interest in energy applications due to its exceptional properties such as stability, conductivity, and catalytic activities. Hence, the great challenge lies in finding the state-of-the-art characterization techniques to reveal the different properties of MoS2 nanostructures with great accuracy. In this regard, there is a need to study and employ several techniques to accurately study the surface chemistry and physics of the MoS2 nanostructures. Hence, this review will comprehensively discuss a detailed literature survey on analytical techniques that can be used to study the chemical, physical, and surface properties of MoS2 nanostructures, namely, ultraviolet-visible spectroscopy (UV-vis), photoluminescence spectroscopy (PL), Fourier transform infrared spectroscopy (FTIR), Raman spectroscopy, time-of-flight secondary ion mass spectroscopy (TOF-SIMS), X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS), scanning and transmission electron microscopies (SEM and TEM), atomic force microscopy (AFM), energy dispersive X-ray spectroscopy (EDS/X), thermogravimetric analysis (TGA), differential scanning calorimetry (DSC), and electroanalytical methods which include linear sweep (LSV) and cyclic (CV) voltammetry and electrochemical impedance spectroscopy (EIS).
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Affiliation(s)
- Kabelo E. Ramohlola
- Nanotechnology Research Lab, Department of Chemistry, School of Physical and Mineral Sciences, University of Limpopo (Turfloop), Sovenga 0727, Polokwane, South Africa
| | - Emmanuel I. Iwuoha
- SensorLab, Chemistry Department, University of the Western Cape, Bellville, 7535 Cape Town, South Africa
| | - Mpitloane J. Hato
- Nanotechnology Research Lab, Department of Chemistry, School of Physical and Mineral Sciences, University of Limpopo (Turfloop), Sovenga 0727, Polokwane, South Africa
| | - Kwena D. Modibane
- Nanotechnology Research Lab, Department of Chemistry, School of Physical and Mineral Sciences, University of Limpopo (Turfloop), Sovenga 0727, Polokwane, South Africa
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16
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Landa-Castro M, Sebastián P, Giannotti M, Serrà A, Gómez E. Electrodeposition of nanostructured cobalt films from a deep eutectic solvent: Influence of the substrate and deposition potential range. Electrochim Acta 2020. [DOI: 10.1016/j.electacta.2020.136928] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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17
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Pussi K, Barbiellini B, Ohara K, Carbo-Argibay E, Kolen'ko YV, Bansil A, Kamali S. Structural properties of PbTe quantum dots revealed by high-energy x-ray diffraction. JOURNAL OF PHYSICS. CONDENSED MATTER : AN INSTITUTE OF PHYSICS JOURNAL 2020; 32:485401. [PMID: 32726769 DOI: 10.1088/1361-648x/abaa80] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/23/2020] [Accepted: 07/29/2020] [Indexed: 06/11/2023]
Abstract
High-energy x-ray diffraction (HE-XRD) experiments combined with an analysis based on atomic-pair-distribution functions can be an effective tool for probing low-dimensional materials. Here, we show how such an analysis can be used to gain insight into structural properties of PbTe nanoparticles (NPs). We interpret our HE-XRD data using an orthorhombic Pnma phase of PbTe, which is an orthorhombic distortion of the rocksalt phase. Although local crystal geometry can vary substantially with particle size at scales below 10 nm, and for very small NPs the particle size itself influences x-ray diffraction patterns, our study shows that HE-XRD can provide a unique nano-characterization tool for unraveling structural properties of nanoscale systems.
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Affiliation(s)
- K Pussi
- Department of Physics, School of Engineering Science, LUT University, FI-53850 Lappeenranta, Finland
| | - B Barbiellini
- Department of Physics, School of Engineering Science, LUT University, FI-53850 Lappeenranta, Finland
- Physics Department, Northeastern University, Boston, MA 02115, United States of America
| | - K Ohara
- Japan Synchrotron Radiation Research Institute, SPring-8, 1-1-1 Kouto, Sayo-cho, Sayo-gun, Hyogo 679-5198, Japan
| | - E Carbo-Argibay
- International Iberian Nanotechnology Laboratory, Braga 4715-330, Portugal
| | - Y V Kolen'ko
- International Iberian Nanotechnology Laboratory, Braga 4715-330, Portugal
| | - A Bansil
- Physics Department, Northeastern University, Boston, MA 02115, United States of America
| | - S Kamali
- Department of Mechanical, Aerospace and Biomedical Engineering, University of Tennessee Space Institute, Tullahoma, TN 37388, United States of America
- Department of Physics and Astronomy, Middle Tennessee State University, Murfreesboro, TN 37132, United States of America
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18
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Sun CL, Li J, Song QW, Ma Y, Zhang ZQ, De JB, Liao Q, Fu H, Yao J, Zhang HL. Lasing from an Organic Micro-Helix. Angew Chem Int Ed Engl 2020; 59:11080-11086. [PMID: 32219946 DOI: 10.1002/anie.202002797] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2020] [Indexed: 11/10/2022]
Abstract
Organic solid-state semiconductor lasers are attracting ever-increasing interest for their potential application in future photonic circuits. Despite the great progress made in recent years, an organic laser from 3D chiral structures has not been achieved. Now, the first example of an organic nano-laser from the micro-helix structure of an achiral molecule is presented. Highly regular micro-helixes with left/right-handed helicity from a distyrylbenzene derivative (HM-DSB) were fabricated and characterized under microscope spectrometers. These chiral micro-helixes exhibit unique photonic properties, including helicity-dependent circularly polarized luminescence (CPL), periodic optical waveguiding, and length-dependent amplified spontaneous emission (ASE) behavior. The successful observation of laser behavior from the organic micro-helix extends our understanding to morphology chirality of organic photonic materials and provides a new design strategy towards chiral photonic circuits.
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Affiliation(s)
- Chun-Lin Sun
- State Key Laboratory of Applied Organic Chemistry (SKLAOC), Key Laboratory of Special Function Materials and Structure Design (MOE), College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou, 730000, P. R. China
| | - Jun Li
- MOE Key Laboratory of Material Physics and Chemistry under Extraordinary Conditions, School of Chemistry and Chemical Engineering, Northwestern Polytechnical University, Xi'an, 710072, P. R. China
| | - Qi-Wei Song
- State Key Laboratory of Applied Organic Chemistry (SKLAOC), Key Laboratory of Special Function Materials and Structure Design (MOE), College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou, 730000, P. R. China
| | - Yu Ma
- MOE Key Laboratory of Material Physics and Chemistry under Extraordinary Conditions, School of Chemistry and Chemical Engineering, Northwestern Polytechnical University, Xi'an, 710072, P. R. China
| | - Ze-Qi Zhang
- State Key Laboratory of Applied Organic Chemistry (SKLAOC), Key Laboratory of Special Function Materials and Structure Design (MOE), College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou, 730000, P. R. China
| | - Jian-Bo De
- Beijing Key Laboratory for Optical Materials and Photonic Devices, Department of Chemistry, Capital Normal University, Beijing, 100048, P. R. China
| | - Qing Liao
- Beijing Key Laboratory for Optical Materials and Photonic Devices, Department of Chemistry, Capital Normal University, Beijing, 100048, P. R. China
| | - Hongbing Fu
- Beijing Key Laboratory for Optical Materials and Photonic Devices, Department of Chemistry, Capital Normal University, Beijing, 100048, P. R. China.,Tianjin Key Laboratory of Molecular Optoelectronic Sciences, Department of Chemistry, Tianjin University, and Collaborative, Innovation Center of Chemical Science and Engineering (Tianjin), Tianjin, 300072, P. R. China
| | - Jiannian Yao
- Beijing National Laboratory for Molecules Science (BNLMS), State Key Laboratory for Structural Chemistry of Unstable and Stable Species, Key Laboratory of Photochemistry, Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100190, P. R. China.,Tianjin Key Laboratory of Molecular Optoelectronic Sciences, Department of Chemistry, Tianjin University, and Collaborative, Innovation Center of Chemical Science and Engineering (Tianjin), Tianjin, 300072, P. R. China
| | - Hao-Li Zhang
- State Key Laboratory of Applied Organic Chemistry (SKLAOC), Key Laboratory of Special Function Materials and Structure Design (MOE), College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou, 730000, P. R. China.,Tianjin Key Laboratory of Molecular Optoelectronic Sciences, Department of Chemistry, Tianjin University, and Collaborative, Innovation Center of Chemical Science and Engineering (Tianjin), Tianjin, 300072, P. R. China
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19
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Sun C, Li J, Song Q, Ma Y, Zhang Z, De J, Liao Q, Fu H, Yao J, Zhang H. Lasing from an Organic Micro‐Helix. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.202002797] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Affiliation(s)
- Chun‐Lin Sun
- State Key Laboratory of Applied Organic Chemistry (SKLAOC)Key Laboratory of Special Function Materials and Structure Design (MOE)College of Chemistry and Chemical EngineeringLanzhou University Lanzhou 730000 P. R. China
| | - Jun Li
- MOE Key Laboratory of Material Physics and Chemistry under Extraordinary ConditionsSchool of Chemistry and Chemical EngineeringNorthwestern Polytechnical University Xi'an 710072 P. R. China
| | - Qi‐Wei Song
- State Key Laboratory of Applied Organic Chemistry (SKLAOC)Key Laboratory of Special Function Materials and Structure Design (MOE)College of Chemistry and Chemical EngineeringLanzhou University Lanzhou 730000 P. R. China
| | - Yu Ma
- MOE Key Laboratory of Material Physics and Chemistry under Extraordinary ConditionsSchool of Chemistry and Chemical EngineeringNorthwestern Polytechnical University Xi'an 710072 P. R. China
| | - Ze‐Qi Zhang
- State Key Laboratory of Applied Organic Chemistry (SKLAOC)Key Laboratory of Special Function Materials and Structure Design (MOE)College of Chemistry and Chemical EngineeringLanzhou University Lanzhou 730000 P. R. China
| | - Jian‐Bo De
- Beijing Key Laboratory for Optical Materials and Photonic DevicesDepartment of ChemistryCapital Normal University Beijing 100048 P. R. China
| | - Qing Liao
- Beijing Key Laboratory for Optical Materials and Photonic DevicesDepartment of ChemistryCapital Normal University Beijing 100048 P. R. China
| | - Hongbing Fu
- Beijing Key Laboratory for Optical Materials and Photonic DevicesDepartment of ChemistryCapital Normal University Beijing 100048 P. R. China
- Tianjin Key Laboratory of Molecular Optoelectronic SciencesDepartment of ChemistryTianjin University, and CollaborativeInnovation Center of Chemical Science and Engineering (Tianjin) Tianjin 300072 P. R. China
| | - Jiannian Yao
- Beijing National Laboratory for Molecules Science (BNLMS)State Key Laboratory for Structural Chemistry of Unstable and Stable SpeciesKey Laboratory of PhotochemistryInstitute of ChemistryChinese Academy of Sciences Beijing 100190 P. R. China
- Tianjin Key Laboratory of Molecular Optoelectronic SciencesDepartment of ChemistryTianjin University, and CollaborativeInnovation Center of Chemical Science and Engineering (Tianjin) Tianjin 300072 P. R. China
| | - Hao‐Li Zhang
- State Key Laboratory of Applied Organic Chemistry (SKLAOC)Key Laboratory of Special Function Materials and Structure Design (MOE)College of Chemistry and Chemical EngineeringLanzhou University Lanzhou 730000 P. R. China
- Tianjin Key Laboratory of Molecular Optoelectronic SciencesDepartment of ChemistryTianjin University, and CollaborativeInnovation Center of Chemical Science and Engineering (Tianjin) Tianjin 300072 P. R. China
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20
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Toso S, Akkerman QA, Martín-García B, Prato M, Zito J, Infante I, Dang Z, Moliterni A, Giannini C, Bladt E, Lobato I, Ramade J, Bals S, Buha J, Spirito D, Mugnaioli E, Gemmi M, Manna L. Nanocrystals of Lead Chalcohalides: A Series of Kinetically Trapped Metastable Nanostructures. J Am Chem Soc 2020; 142:10198-10211. [PMID: 32374173 PMCID: PMC7737912 DOI: 10.1021/jacs.0c03577] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2020] [Indexed: 11/28/2022]
Abstract
We report the colloidal synthesis of a series of surfactant-stabilized lead chalcohalide nanocrystals. Our work is mainly focused on Pb4S3Br2, a chalcohalide phase unknown to date that does not belong to the ambient-pressure PbS-PbBr2 phase diagram. The Pb4S3Br2 nanocrystals herein feature a remarkably narrow size distribution (with a size dispersion as low as 5%), a good size tunability (from 7 to ∼30 nm), an indirect bandgap, photoconductivity (responsivity = 4 ± 1 mA/W), and stability for months in air. A crystal structure is proposed for this new material by combining the information from 3D electron diffraction and electron tomography of a single nanocrystal, X-ray powder diffraction, and density functional theory calculations. Such a structure is closely related to that of the recently discovered high-pressure chalcohalide Pb4S3I2 phase, and indeed we were able to extend our synthesis scheme to Pb4S3I2 colloidal nanocrystals, whose structure matches the one that has been published for the bulk. Finally, we could also prepare nanocrystals of Pb3S2Cl2, which proved to be a structural analogue of the recently reported bulk Pb3Se2Br2 phase. It is remarkable that one high-pressure structure (for Pb4S3I2) and two metastable structures that had not yet been reported (for Pb4S3Br2 and Pb3S2Cl2) can be prepared on the nanoscale by wet-chemical approaches. This highlights the important role of colloidal chemistry in the discovery of new materials and motivates further exploration into metal chalcohalide nanocrystals.
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Affiliation(s)
- Stefano Toso
- Department
of Nanochemistry and Materials Characterization Facility, Istituto
Italiano di Tecnologia, Via Morego 30, 16163 Genova, Italy
- Dipartimento
di Matematica e Fisica and Interdisciplinary Laboratories for Advanced
Materials Physics, Università Cattolica
del Sacro Cuore, Via
Musei 41, I-25121 Brescia, Italy
| | - Quinten A. Akkerman
- Department
of Nanochemistry and Materials Characterization Facility, Istituto
Italiano di Tecnologia, Via Morego 30, 16163 Genova, Italy
| | - Beatriz Martín-García
- Department
of Nanochemistry and Materials Characterization Facility, Istituto
Italiano di Tecnologia, Via Morego 30, 16163 Genova, Italy
| | - Mirko Prato
- Department
of Nanochemistry and Materials Characterization Facility, Istituto
Italiano di Tecnologia, Via Morego 30, 16163 Genova, Italy
| | - Juliette Zito
- Department
of Nanochemistry and Materials Characterization Facility, Istituto
Italiano di Tecnologia, Via Morego 30, 16163 Genova, Italy
| | - Ivan Infante
- Department
of Nanochemistry and Materials Characterization Facility, Istituto
Italiano di Tecnologia, Via Morego 30, 16163 Genova, Italy
- Department
of Theoretical Chemistry, Faculty of Science, Vrije Universiteit Amsterdam, de Boelelaan 1083, 1081 HV Amsterdam, The Netherlands
| | - Zhiya Dang
- Department
of Nanochemistry and Materials Characterization Facility, Istituto
Italiano di Tecnologia, Via Morego 30, 16163 Genova, Italy
| | - Anna Moliterni
- Istituto
di Cristallografia−Consiglio Nazionale delle Ricerche (IC−CNR), Via Amendola 122/O, I-70126 Bari, Italy
| | - Cinzia Giannini
- Istituto
di Cristallografia−Consiglio Nazionale delle Ricerche (IC−CNR), Via Amendola 122/O, I-70126 Bari, Italy
| | - Eva Bladt
- Electron
Microscopy for Materials Science (EMAT), University of Antwerp, Groenenborgerlaan 171, 2020 Antwerp, Belgium
- NANOlab
Center of Excellence, University of Antwerp, 2020 Antwerp, Belgium
| | - Ivan Lobato
- Electron
Microscopy for Materials Science (EMAT), University of Antwerp, Groenenborgerlaan 171, 2020 Antwerp, Belgium
- NANOlab
Center of Excellence, University of Antwerp, 2020 Antwerp, Belgium
| | - Julien Ramade
- Electron
Microscopy for Materials Science (EMAT), University of Antwerp, Groenenborgerlaan 171, 2020 Antwerp, Belgium
- NANOlab
Center of Excellence, University of Antwerp, 2020 Antwerp, Belgium
| | - Sara Bals
- Electron
Microscopy for Materials Science (EMAT), University of Antwerp, Groenenborgerlaan 171, 2020 Antwerp, Belgium
- NANOlab
Center of Excellence, University of Antwerp, 2020 Antwerp, Belgium
| | - Joka Buha
- Department
of Nanochemistry and Materials Characterization Facility, Istituto
Italiano di Tecnologia, Via Morego 30, 16163 Genova, Italy
| | - Davide Spirito
- Department
of Nanochemistry and Materials Characterization Facility, Istituto
Italiano di Tecnologia, Via Morego 30, 16163 Genova, Italy
| | - Enrico Mugnaioli
- Center
for Nanotechnology Innovation@NEST, Istituto
Italiano di Tecnologia, Piazza San Silvestro, 12, 56127 Pisa, Italy
| | - Mauro Gemmi
- Center
for Nanotechnology Innovation@NEST, Istituto
Italiano di Tecnologia, Piazza San Silvestro, 12, 56127 Pisa, Italy
| | - Liberato Manna
- Department
of Nanochemistry and Materials Characterization Facility, Istituto
Italiano di Tecnologia, Via Morego 30, 16163 Genova, Italy
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21
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De Caro L, Scattarella F, Altamura D, Arciniegas MP, Siliqi D, Manna L, Giannini C. X-ray ptychographic mode of self-assembled CdSe/CdS octapod-shaped nanocrystals in thick polymers. J Appl Crystallogr 2020; 53:741-747. [PMID: 32684889 PMCID: PMC7312151 DOI: 10.1107/s160057672000583x] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2020] [Accepted: 04/27/2020] [Indexed: 11/10/2022] Open
Abstract
This work describes the application of X-ray ptychography for the inspection of complex assemblies of highly anisotropic nanocrystals embedded in a thick polymer matrix. More specifically, this case deals with CdSe/CdS octapods, with pod length L = 39 ± 2 nm and pod diameter D = 12 ± 2 nm, dispersed in free-standing thick films (24 ± 4 µm) of polymethyl methacrylate and polystyrene, with different molecular weights. Ptychography is the only imaging method available to date that can be used to study architectures made by these types of nanocrystals in thick polymeric films, as any other alternative direct method, such as scanning/transmission electron microscopy, can be definitively ruled out as a result of the large thickness of the free-standing films. The electron density maps of the investigated samples are reconstructed by combining iterative difference map algorithms and a maximum likelihood optimization algorithm. In addition, post image processing techniques are applied to both reduce noise and provide a better visualization of the material morphological details. Through this process, at a final resolution of 27 nm, the reconstructed maps allow us to visualize the intricate network of octapods inside the polymeric matrices.
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Affiliation(s)
- Liberato De Caro
- Istituto di Cristallografia, CNR, via Amendola 122/O, Bari, Italy
| | | | - Davide Altamura
- Istituto di Cristallografia, CNR, via Amendola 122/O, Bari, Italy
| | - Milena P. Arciniegas
- Nanochemistry Department, Istituto Italiano di Tecnologia, via Morego 30, Genova, Italy
| | - Dritan Siliqi
- Istituto di Cristallografia, CNR, via Amendola 122/O, Bari, Italy
| | - Liberato Manna
- Nanochemistry Department, Istituto Italiano di Tecnologia, via Morego 30, Genova, Italy
| | - Cinzia Giannini
- Istituto di Cristallografia, CNR, via Amendola 122/O, Bari, Italy
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Kopula Kesavan J, d’Acapito F, Scardi P, Stavrinadis A, Akgul MZ, Burgués-Ceballos I, Konstantatos G, Boscherini F. Cation Disorder and Local Structural Distortions in Ag xBi 1-xS 2 Nanoparticles. NANOMATERIALS 2020; 10:nano10020316. [PMID: 32059432 PMCID: PMC7075158 DOI: 10.3390/nano10020316] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/28/2019] [Revised: 01/29/2020] [Accepted: 02/06/2020] [Indexed: 11/20/2022]
Abstract
By combining X-ray absorption fine structure and X-ray diffraction measurements with density functional and molecular dynamics simulations, we study the structure of a set of AgxBi1−xS2 nanoparticles, a materials system of considerable current interest for photovoltaics. An apparent contradiction between the evidence provided by X-ray absorption and diffraction measurements is solved by means of the simulations. We find that disorder in the cation sublattice induces strong local distortions, leading to the appearance of short Ag–S bonds, the overall lattice symmetry remaining close to hexagonal.
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Affiliation(s)
- Jagadesh Kopula Kesavan
- Department of Physics and Astronomy, University of Bologna, Viale C. Berti Pichat 6/2, 40127 Bologna, Italy;
| | - Francesco d’Acapito
- Istituto Officina dei Materiali, Consiglio Nazionale delle Ricerche, OGG, c/o ESRF, 71, Avenue des Martyrs, CS40220, CEDEX 9, 38043 Grenoble, France;
| | - Paolo Scardi
- Department of Civil, Environmental & Mechanical Engineering, University of Trento, Via Mesiano 77, 38123 Trento, Italy;
| | - Alexandros Stavrinadis
- ICFO-Institut de Ciencies Fotòniques, The Barcelona Institute of Science and Technology, 08860 Castelldefels (Barcelona), Spain; (A.S.); (M.Z.A.); (I.B.-C.); (G.K.)
| | - Mehmet Zafer Akgul
- ICFO-Institut de Ciencies Fotòniques, The Barcelona Institute of Science and Technology, 08860 Castelldefels (Barcelona), Spain; (A.S.); (M.Z.A.); (I.B.-C.); (G.K.)
| | - Ignasi Burgués-Ceballos
- ICFO-Institut de Ciencies Fotòniques, The Barcelona Institute of Science and Technology, 08860 Castelldefels (Barcelona), Spain; (A.S.); (M.Z.A.); (I.B.-C.); (G.K.)
| | - Gerasimos Konstantatos
- ICFO-Institut de Ciencies Fotòniques, The Barcelona Institute of Science and Technology, 08860 Castelldefels (Barcelona), Spain; (A.S.); (M.Z.A.); (I.B.-C.); (G.K.)
- ICREA—Institució Catalana de Recerca i Estudis Avançats, Passeig Lluís Companys 23, 08010 Barcelona, Spain
| | - Federico Boscherini
- Department of Physics and Astronomy, University of Bologna, Viale C. Berti Pichat 6/2, 40127 Bologna, Italy;
- Istituto Officina dei Materiali, Consiglio Nazionale delle Ricerche, OGG, c/o ESRF, 71, Avenue des Martyrs, CS40220, CEDEX 9, 38043 Grenoble, France;
- Correspondence:
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Zeleke MA, Kuo DH. Synthesis and application of V 2O 5-CeO 2 nanocomposite catalyst for enhanced degradation of methylene blue under visible light illumination. CHEMOSPHERE 2019; 235:935-944. [PMID: 31561311 DOI: 10.1016/j.chemosphere.2019.06.230] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/27/2018] [Revised: 05/27/2019] [Accepted: 06/30/2019] [Indexed: 06/10/2023]
Abstract
Methylene blue dye is among the toxic, mutagenic, and carcinogenic pollutants. Hence, its treatment via photocatalytic degradation is an important remediation method for the sake of a healthy environment. Herein, the V2O5-CeO2 nanocomposite catalysts were synthesized via a simple precipitation-thermal decomposition approach and used for the photodegradation of methylene blue in the presence of H2O2 as an effective electron scavenger under visible light illumination. The nanocomposite catalysts were systematically characterized to investigate the effects of V2O5 with the aids of X-ray, morphology, light absorption, catalytic activity, and charge transfer properties of the nanocomposite catalysts. The VC-2 nanocomposite prepared with NH4VO3:CeO2 molar ratios at 0.15:1 was found to be the best efficient catalyst where ≥98% of methylene blue was degraded within 25 min irradiation time. From the kinetics analysis, its rate constant was found to be higher than those of the pure V2O5 and CeO2 catalysts by a factor of 12.0 and 13.5, respectively. The plausibly mechanistic elucidation of charge transfer and utilization of reactive species are conspicuous allegations of the combined effects of the nanocomposite catalyst, H2O2 sacrificial agent, and visible light for the photodegradation of the dye.
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Affiliation(s)
- Misganaw Alemu Zeleke
- Department of Materials Science and Engineering, National Taiwan University of Science and Technology, No.43, Sec. 4, Keelung Road, Taipei, 10607, Taiwan; Department of Materials Science and Engineering, Bahir Dar University, P.O. Box 79, Ethiopia
| | - Dong-Hau Kuo
- Department of Materials Science and Engineering, National Taiwan University of Science and Technology, No.43, Sec. 4, Keelung Road, Taipei, 10607, Taiwan.
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Fiod Riccio BV, Fonseca-Santos B, Colerato Ferrari P, Chorilli M. Characteristics, Biological Properties and Analytical Methods of Trans-Resveratrol: A Review. Crit Rev Anal Chem 2019; 50:339-358. [PMID: 31353930 DOI: 10.1080/10408347.2019.1637242] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Trans-resveratrol (TR) is the biological active isomer of resveratrol and the one responsible for therapeutic effects; both molecules are non-flavonoid phenolics of the stilbenes class found mainly in berries and red grapes. TR biological properties lie in modulation of various enzymatic classes. It is a promising candidate to novel drugs due its applications in pharmaceutical and cosmetic industries, such as anticarcinogenic, antidiabetic, antiacne, antioxidant, anti-inflammatory, neuroprotective, and photoprotector agent. It has effects on bone metabolism, gastrointestinal tract, eyes, kidneys, and in obesity treatment as well. Nevertheless, its low solubility in water and other polar solvents may be a hindrance to its therapeutic effects. Various strategies been developed to overcome these issues, such as the drug delivery systems. The present study performed a research about methods to identify TR and RESV in several samples (raw materials, wines, food supplements, drug delivery systems, and blood plasma). Most of the studies tend to analyze TR and RESV by high performance liquid chromatography (HPLC) coupled with different detectors, even so, there are reports of the use of capillary electrophoresis, electron spin resonance, gas chromatography, near-infrared luminescence, UV-Vis spectrophotometer, and vibrational spectrophotometry, for this purpose. Thus, the review evaluates the biological activity of TR and demonstrates the currently used analytical methods for its quantification in different matrices.
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Affiliation(s)
- Bruno Vincenzo Fiod Riccio
- School of Pharmaceutical Sciences, Department of Drugs and Medicines, São Paulo State University (UNESP), Araraquara, São Paulo, Brazil
| | - Bruno Fonseca-Santos
- School of Pharmaceutical Sciences, Department of Drugs and Medicines, São Paulo State University (UNESP), Araraquara, São Paulo, Brazil
| | | | - Marlus Chorilli
- School of Pharmaceutical Sciences, Department of Drugs and Medicines, São Paulo State University (UNESP), Araraquara, São Paulo, Brazil
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Synthesis and Diagnostics of Nanostructured Micaless Microcomposite as a Prospective Insulation Material for Rotating Machines. APPLIED SCIENCES-BASEL 2019. [DOI: 10.3390/app9142926] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
This paper deals with the topic of composite insulation materials for rotating machines and it is primarily pointed to the synthesis of new three-component insulation system. In connection with this research, the basic components of the insulation system are selected and described by different diagnostic methods. The proposed insulation material is composed of epoxy resin based on bisphenol-A diglycidyl ether, magnesium oxide nanofiller (1 wt %) with its own surface treatment technology using epoxysilane coupling agent ( γ -glycidoxypropyltrimethoxysilane) and polyethylene naphthalate as a reinforcing component. Following the defined topic of the paper, the proposed three-component insulation system is confronted with commonly used insulating systems (PET reinforced and Glass reinforced mica composites) in order to verify the basic dielectric properties (dielectric strength, volume resistivity, dissipation factor) and other parameters determined from phenomenological voltage and current signals, respectively.
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Photocatalytic Activity of TiO2/AuNRs–SiO2 Nanocomposites Applied to Building Materials. COATINGS 2018. [DOI: 10.3390/coatings8090296] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
In this work, the self-cleaning and photocatalytic properties of mesoporous TiO2/AuNRs-SiO2 composites (namely UCA–TiO2Au) prepared by a simple and low-cost technique were investigated toward application in building materials. Mesoporous photocatalytic nanocomposites coating the surface of stone and other building materials are a very promising approach to address relevant questions connected with the increasing atmospheric pollution. We tested three types of preformed TiO2/AuNRs nanostructures in order to evaluate the effect of AuNRs on the photocatalytic activity of resulting coatings deposited on the surface of a popular building limestone. The resulting nanocomposites provide crack-free surface coatings on limestone, effective adhesion, improve the stone mechanical properties and impart hydrophobic and self-cleaning properties. Photocatalytic characterization involved the degradation of a target compound (Methylene blue; MB) under direct exposure to simulated solar light using TiO2 P25 Evonik (TiO2 P25) as a reference material. Moreover, these coatings upon irradiation by simulated solar light were successfully employed for the photocatalytic oxidation of carbon soot. The experimental results revealed that UCA–TiO2Au samples are the best performing coating in both MB bleaching and soot degradation.
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Ali HH, Hussein AA. Oral solid self-nanoemulsifying drug delivery systems of candesartan citexetil: formulation, characterization and in vitro drug release studies. AAPS OPEN 2017. [DOI: 10.1186/s41120-017-0015-8] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022] Open
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Comparative Morphological and Crystallographic Analysis of Electrochemically- and Chemically-Produced Silver Powder Particles. METALS 2017. [DOI: 10.3390/met7050160] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
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Pattathil P, Scarfiello R, Giannuzzi R, Veramonti G, Sibillano T, Qualtieri A, Giannini C, Cozzoli PD, Manca M. Near-infrared selective dynamic windows controlled by charge transfer impedance at the counter electrode. NANOSCALE 2016; 8:20056-20065. [PMID: 27892590 DOI: 10.1039/c6nr07221f] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Recent developments in the exploitation of transparent conductive oxide nanocrystals paved the way to the realization of a new class of electrochemical systems capable of selectively shielding the infrared heat loads carried by sunlight and prospected the blooming of a key enabling technology to be implemented in the next generation of "zero-energy" building envelopes. Here we report the fabrication of a set of electrochromic devices embodying an engineered nanostructured electrode made by high aspect-ratio tungsten oxide nanorods, which allow for selectively and dynamically controlling sunlight transmission over the near-infrared to visible range. Varying the intensity of applied voltage makes the spectral response of the device change across three different optical regimes, namely fully transparent, near-infrared only blocking and both visible and near-infrared blocking. It is demonstrated that the degree of reversible modulation of the thermal radiation entering the glazing element can approach a remarkable 85%, accompanied by only a modest reduction in the luminous transmittance.
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Affiliation(s)
- Praveen Pattathil
- Center for Biomolecular Nanotechnologies (CBN) - Istituto Italiano di Tecnologia (IIT), Via Barsanti 14, 73010 Arnesano (Lecce), Italy. and Dipartimento di Matematica e Fisica "E. De Giorgi, Università del Salento, c/o Campus Ecotekne, via Arnesano, 73100 Lecce, Italy
| | - Riccardo Scarfiello
- CNR-NANOTEC - Institute of Nanotechnology, sede di Lecce, c/o Campus Ecotekne, via Monteroni, 73100 Lecce, Italy and Dipartimento di Matematica e Fisica "E. De Giorgi, Università del Salento, c/o Campus Ecotekne, via Arnesano, 73100 Lecce, Italy
| | - Roberto Giannuzzi
- Center for Biomolecular Nanotechnologies (CBN) - Istituto Italiano di Tecnologia (IIT), Via Barsanti 14, 73010 Arnesano (Lecce), Italy.
| | - Giulia Veramonti
- Center for Biomolecular Nanotechnologies (CBN) - Istituto Italiano di Tecnologia (IIT), Via Barsanti 14, 73010 Arnesano (Lecce), Italy.
| | - Teresa Sibillano
- CNR-IC - Institute of Crystallography, via Amendola 122/o, 70126 Bari, Italy
| | - Antonio Qualtieri
- Center for Biomolecular Nanotechnologies (CBN) - Istituto Italiano di Tecnologia (IIT), Via Barsanti 14, 73010 Arnesano (Lecce), Italy.
| | - Cinzia Giannini
- CNR-IC - Institute of Crystallography, via Amendola 122/o, 70126 Bari, Italy
| | - P Davide Cozzoli
- CNR-NANOTEC - Institute of Nanotechnology, sede di Lecce, c/o Campus Ecotekne, via Monteroni, 73100 Lecce, Italy and Dipartimento di Matematica e Fisica "E. De Giorgi, Università del Salento, c/o Campus Ecotekne, via Arnesano, 73100 Lecce, Italy
| | - Michele Manca
- Center for Biomolecular Nanotechnologies (CBN) - Istituto Italiano di Tecnologia (IIT), Via Barsanti 14, 73010 Arnesano (Lecce), Italy.
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