1
|
Machado TR, Zanardo CE, Vilela RRC, Miranda RR, Moreno NS, Leite CM, Longo E, Zucolotto V. Tailoring the structure and self-activated photoluminescence of carbonated amorphous calcium phosphate nanoparticles for bioimaging applications. J Mater Chem B 2024; 12:4945-4961. [PMID: 38685886 DOI: 10.1039/d3tb02915h] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/02/2024]
Abstract
Self-activated luminescent calcium phosphate (CaP) nanoparticles, including hydroxyapatite (HA) and amorphous calcium phosphate (ACP), are promising for bioimaging and theragnostic applications in nanomedicine, eliminating the need for activator ions or fluorophores. In this study, we developed luminescent and stable citrate-functionalized carbonated ACP nanoparticles for bioimaging purposes. Our findings revealed that both the CO32- content and the posterior heating step at 400 °C significantly influenced the composition and the structural ordering of the chemically precipitated ACP nanoparticles, impacting the intensity, broadness, and position of the defect-related photoluminescence (PL) emission band. The heat-treated samples also exhibited excitation-dependent PL under excitation wavelengths typically used in bioimaging (λexc = 405, 488, 561, and 640 nm). Citrate functionalization improved the PL intensity of the nanoparticles by inhibiting non-radiative deactivation mechanisms in solution. Additionally, it resulted in an increased colloidal stability and reduced aggregation, high stability of the metastable amorphous phase and the PL emission for at least 96 h in water and supplemented culture medium. MTT assay of HepaRG cells, incubated for 24 and 48 h with the nanoparticles in concentrations ranging from 10 to 320 μg mL-1, evidenced their high biocompatibility. Internalization studies using the nanoparticles self-activated luminescence showed that cellular uptake of the nanoparticles is both time (4-24 h) and concentration (160-320 μg mL-1) dependent. Experiments using confocal laser scanning microscopy allowed the successful imaging of the nanoparticles inside cells via their intrinsic PL after 4 h of incubation. Our results highlight the potential use of citrate-functionalized carbonated ACP nanoparticles for use in internalization assays and bioimaging procedures.
Collapse
Affiliation(s)
- Thales R Machado
- GNANO - Nanomedicine and Nanotoxicology Group, Physics Institute of São Carlos, University of São Paulo, 13566-590 São Carlos, SP, Brazil.
| | - Carlos E Zanardo
- GNANO - Nanomedicine and Nanotoxicology Group, Physics Institute of São Carlos, University of São Paulo, 13566-590 São Carlos, SP, Brazil.
| | - Raquel R C Vilela
- GNANO - Nanomedicine and Nanotoxicology Group, Physics Institute of São Carlos, University of São Paulo, 13566-590 São Carlos, SP, Brazil.
| | - Renata R Miranda
- GNANO - Nanomedicine and Nanotoxicology Group, Physics Institute of São Carlos, University of São Paulo, 13566-590 São Carlos, SP, Brazil.
| | - Natália S Moreno
- GNANO - Nanomedicine and Nanotoxicology Group, Physics Institute of São Carlos, University of São Paulo, 13566-590 São Carlos, SP, Brazil.
| | - Celisnolia M Leite
- GNANO - Nanomedicine and Nanotoxicology Group, Physics Institute of São Carlos, University of São Paulo, 13566-590 São Carlos, SP, Brazil.
| | - Elson Longo
- CDMF - Center for the Development of Functional Materials, Federal University of São Carlos, 13565-905 São Carlos, SP, Brazil
| | - Valtencir Zucolotto
- GNANO - Nanomedicine and Nanotoxicology Group, Physics Institute of São Carlos, University of São Paulo, 13566-590 São Carlos, SP, Brazil.
| |
Collapse
|
2
|
Sahadat Hossain M, Ahmed S. FTIR spectrum analysis to predict the crystalline and amorphous phases of hydroxyapatite: a comparison of vibrational motion to reflection. RSC Adv 2023; 13:14625-14630. [PMID: 37197675 PMCID: PMC10183800 DOI: 10.1039/d3ra02580b] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2023] [Accepted: 05/08/2023] [Indexed: 05/19/2023] Open
Abstract
Hydroxyapatites were synthesized from calcium carbonate and ortho-phosphoric acid in amorphous and crystalline phases by varying sintering temperature from 300 to 1100 °C maintaining an increment of 200 °C. The asymmetric and symmetric stretching, and bending vibrations of phosphate and hydroxyl groups were explored in Fourier transformation infrared (FTIR) spectra. Although the FTIR spectra revealed identical peaks in the full range (400-4000 cm-1 wavenumber), the narrow spectra exerted variations by splitting peaks and intensity. The intensities of peaks at 563, 599, 630, 962, 1026, and 1087 cm-1 wavenumbers were intensified gradually with the augmentation of sintering temperature, and the relation between the relative peak intensity and sintering temperature was correlated with the aid of the good linear regression coefficient. Peak separations were also found in the case of 962 and 1087 cm-1 wavenumbers when the sintering temperature was equal to or exceeded 700 °C. The conventional X-ray diffraction (XRD) technique was also employed to explore the crystalline and amorphous phases of synthesized hydroxyapatites.
Collapse
Affiliation(s)
- Md Sahadat Hossain
- Institute of Glass & Ceramic Research and Testing, Bangladesh Council of Scientific and Industrial Research (BCSIR) Dhaka-1205 Bangladesh
| | - Samina Ahmed
- Institute of Glass & Ceramic Research and Testing, Bangladesh Council of Scientific and Industrial Research (BCSIR) Dhaka-1205 Bangladesh
- BCSIR Laboratories Dhaka, Bangladesh Council of Scientific and Industrial Research (BCSIR) Dhaka-1205 Bangladesh
| |
Collapse
|
3
|
Velusamy N, Sundarabharathi L, Saminathan RK. Microwave synthesis, characterization and antibacterial performance of dual mineralized nanohydroxyapatite for biomedical applications. BIOCATALYSIS AND AGRICULTURAL BIOTECHNOLOGY 2022. [DOI: 10.1016/j.bcab.2022.102303] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
|
4
|
Zhang YP, Niu WY, Yang YS, Yuan YZ, Zhang HR. A chalcone organic gel for oil spill recovery and wastewater treatment. Colloids Surf A Physicochem Eng Asp 2022. [DOI: 10.1016/j.colsurfa.2021.128166] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
|
5
|
Srinivasan B, Kolanthai E, Asthagiri Kumaraswamy NE, Pugazhendhi AS, Catalani LH, Subbaraya NK. Vacancy-Induced Visible Light-Driven Fluorescence in Toxic Ion-Free Resorbable Magnetic Calcium Phosphates for Cell Imaging Applications. ACS APPLIED BIO MATERIALS 2021; 4:3256-3263. [PMID: 35014412 DOI: 10.1021/acsabm.0c01617] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Multifunctional nanosized particles are very beneficial in the field of biomedicine. Bioactive and highly biocompatible calcium phosphate (CaP) nanoparticles (∼50 nm) exhibiting both superparamagnetic and fluorescence properties were synthesized by incorporating dual ions (Fe3+ and Sr2+) in HAp (hydroxyapatite) [Ca10(PO4)6(OH)2]. Insertion of Fe3+ creates oxygen vacancies at the PO43- site, thereby destabilizing the structure. Thus, in order to maintain the structural stability, Sr2+ has been incorporated. This incorporation of Sr2+ leads to an intense emission at 550 nm. HAp nanoparticles when subjected to thermal treatment (800 °C) transform to β-TCP, exhibiting emission at 710 nm due to the emergence of an intermediate band. Moreover, these nanoparticles exhibit fluorescence in visible light when compared to the other UV and IR fluorescence excitation sources which could damage the tissues. The synthesis involving the combination of ultrasound and microwave techniques resulted in the distribution of Fe3+ in the interstitial sites of CaP, which is responsible for the excellent fluorescent properties. Moreover, thermally treated CaP becomes superparamagnetic, without affecting the desired optical properties. The bioactive, biocompatible, magnetic, and fluorescent properties of this resorbable CaP which is free from toxic heavy metals (Eu, Gd, etc.) could help in overcoming the long-term cytotoxicity. This could also be useful in tracking the location of the nanoparticles during drug delivery and magnetic hyperthermia. The bioactive fluorescent CaP nanoparticle helps in monitoring the bone growth and in addition, it could be employed in cell imaging applications. The in vitro MCF-7 imaging using the nanoparticles after 24 h of uptake at 465 nm evidences the bioimaging capability of the prepared nanoparticles. The reproducibility of the defect level is essential for the defect-induced emission properties. The synthesis of nontoxic fluorescent CaP is highly reproducible with the present synthesis method. Hence, it could be safely employed in various biomedical applications.
Collapse
Affiliation(s)
- Baskar Srinivasan
- Crystal Growth Centre, Anna University, Chennai 600 025, Tamil Nadu, India
| | - Elayaraja Kolanthai
- Departamento de Química Fundamental, Instituto de Química, University of São Paulo, Av. Prof. LineuPrestes, 784, São Paulo 05508-000, Brazil.,Department of Materials Science & Engineering, Advanced Materials Processing and Analysis Center, University of Central Florida, Orlando 32816, Florida, USA
| | | | - Abinaya Sindu Pugazhendhi
- Departamento de Química Fundamental, Instituto de Química, University of São Paulo, Av. Prof. LineuPrestes, 784, São Paulo 05508-000, Brazil
| | - Luiz Henrique Catalani
- Departamento de Química Fundamental, Instituto de Química, University of São Paulo, Av. Prof. LineuPrestes, 784, São Paulo 05508-000, Brazil
| | | |
Collapse
|
6
|
Wang C, Jeong KJ, Kim J, Kang SW, Kang J, Han IH, Lee IW, Oh SJ, Lee J. Emission-tunable probes using terbium(III)-doped self-activated luminescent hydroxyapatite for in vitro bioimaging. J Colloid Interface Sci 2020; 581:21-30. [PMID: 32768732 DOI: 10.1016/j.jcis.2020.07.083] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2020] [Revised: 07/17/2020] [Accepted: 07/17/2020] [Indexed: 02/04/2023]
Abstract
Lanthanide ion (Ln3+)-doped nanoscale hydroxyapatites (nHAp) with tunable luminescence have attracted increasing attention due to their potential applications as useful biomedical tools (e.g., imaging and clinical therapy). In this study, we reported that doping Terbium (III) ions (Tb3+) in self-activated luminescent nHAp via a facile hydrothermal reaction, using trisodium citrate (Cit3-), generates unique emission-tunable probes known as Cit/Tb-nHAp. The morphology, crystal phase, and luminescence properties of these Cit/Tb-nHAp probes are studied in detail. Moreover, the results demonstrate that the luminescence of self-activated nHAp originates from the carbon dots trapped within the nHAp crystals, in which partial energy transfer occurs from carbon dots (CDs) to Tb3+. The color tunability is successfully achieved by regulating the addition of Cit3-. Biocompatibility study indicates that when co-cultured with C6 glioma cells in vitro for 3 days, ≤800 ppm Cit/Tb-nHAp is not cytotoxic for C6 glioma cells. We also present in vitro data showing efficient cytoplasmic localization of transferrin conjugated Cit/Tb-nHAp into C6 glioma cells by fluorescence cell imaging. We have successfully engineered Cit/Tb-nHAp, a promising biocompatible agent for future in vitro and in vivo fluorescence bioimaging.
Collapse
Affiliation(s)
- Caifeng Wang
- Department of Cogno-Mechatronics Engineering, Pusan National University, Busan 46241, Republic of Korea
| | - Ki-Jae Jeong
- Department of Cogno-Mechatronics Engineering, Pusan National University, Busan 46241, Republic of Korea
| | - Jeonghyo Kim
- Department of Chemistry, Chungnam National University, Daejeon 34134, Republic of Korea
| | - Seon Woo Kang
- Department of Cogno-Mechatronics Engineering, Pusan National University, Busan 46241, Republic of Korea
| | - Jieun Kang
- Department of Otolaryngology and Biomedical Research Institute, Pusan National University Hospital, Pusan National University School of Medicine, Busan 49241, Republic of Korea
| | - In Ho Han
- Department of Neurosurgery & Medical Research Institute, Pusan National University Hospital, Pusan National University School of Medicine, Busan 49241, Republic of Korea
| | - Il-Woo Lee
- Deparment of Otolaryngology and Biomedical Research Institute, Pusan National University Yangsan Hospital, Pusan National University School of Medicine, Yangsan 50612, Republic of Korea
| | - Se-Joon Oh
- Department of Otolaryngology and Biomedical Research Institute, Pusan National University Hospital, Pusan National University School of Medicine, Busan 49241, Republic of Korea
| | - Jaebeom Lee
- Department of Chemistry, Chungnam National University, Daejeon 34134, Republic of Korea; Department of Chemical Engineering and Applied Chemistry, Chungnam National University, Daejeon 34134, Republic of Korea.
| |
Collapse
|
7
|
Wang YC, Xu WL, Lu YP, Xu WH, Yin H, Xiao GY. Investigation of nature of starting materials on the construction of hydroxyapatite 1D/3D morphologies. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2020; 108:110408. [PMID: 31924047 DOI: 10.1016/j.msec.2019.110408] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/13/2019] [Revised: 10/21/2019] [Accepted: 11/07/2019] [Indexed: 11/29/2022]
Abstract
With the increasing requirement of bone repair materials, hydroxyapatite (HA) has been paid widely attention to investigation because of its good bioactivity and osteoconductivity. The structure of HA is a vital factor to expand its application in the field of hard tissue therapy. Thus, many strategies have been utilized in fabricating one-dimensional (1D) and three-dimensional (3D) nanostructured HA. In this paper, we successful synthesize HA with 1D nanofibers and 3D nanostructured microspheres using stearic acid as a template and different phosphates as phosphorus sources under the same synthetic system. The morphology of HA changes from nanofibers with high flexibility to nanostructured microspheres with good sphericity under the synergistic effect of stearic acid and various phosphates. The HA nanofibers and microspheres are promising for applications in biomedical fields. Base on characterization results, the formation mechanisms of HA nanofibers and HA microspheres self-assembled by nanorods are proposed. Furthermore, the HA morphology transition from nanofibers to nanostructured microspheres may be attributed to the formation of polyphosphate-induced water-in-oil microemulsion system in the synthesis process. The finding may provide a new direction to control HA morphology from 1D nanofibers to 3D microspheres based on previous strategies.
Collapse
Affiliation(s)
- Yin-Chuan Wang
- Key Laboratory for Liquid-Solid Structural Evolution and Processing of Materials, Ministry of Education, Shandong University, Ji'nan, China; School of Materials Science and Engineering, Shandong University, Ji'nan, China; Suzhou Institute of Shandong University, Suzhou, China
| | - Wei-Li Xu
- Key Laboratory for Liquid-Solid Structural Evolution and Processing of Materials, Ministry of Education, Shandong University, Ji'nan, China; School of Materials Science and Engineering, Shandong University, Ji'nan, China; Suzhou Institute of Shandong University, Suzhou, China
| | - Yu-Peng Lu
- Key Laboratory for Liquid-Solid Structural Evolution and Processing of Materials, Ministry of Education, Shandong University, Ji'nan, China; School of Materials Science and Engineering, Shandong University, Ji'nan, China; Suzhou Institute of Shandong University, Suzhou, China.
| | - Wen-Hua Xu
- Key Laboratory for Liquid-Solid Structural Evolution and Processing of Materials, Ministry of Education, Shandong University, Ji'nan, China; School of Materials Science and Engineering, Shandong University, Ji'nan, China; Suzhou Institute of Shandong University, Suzhou, China
| | - Han Yin
- Department of Orthopaedics, The People's Hospital of Liaocheng, Liaocheng, China
| | - Gui-Yong Xiao
- Key Laboratory for Liquid-Solid Structural Evolution and Processing of Materials, Ministry of Education, Shandong University, Ji'nan, China; School of Materials Science and Engineering, Shandong University, Ji'nan, China; Suzhou Institute of Shandong University, Suzhou, China.
| |
Collapse
|
8
|
Synthesis and characterization of hydroxyapatite nano-rods from oyster shell with exogenous surfactants. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2019; 105:110102. [DOI: 10.1016/j.msec.2019.110102] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/19/2019] [Revised: 08/03/2019] [Accepted: 08/19/2019] [Indexed: 01/20/2023]
|
9
|
Ammonium-Induced Synthesis of Highly Fluorescent Hydroxyapatite Nanoparticles with Excellent Aqueous Colloidal Stability for Secure Information Storage. COATINGS 2019. [DOI: 10.3390/coatings9050289] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
In this paper, uniform hydroxyapatite (HA) nanoparticles, with excellent aqueous colloidal stability and high fluorescence, have been successfully synthesized via a citrate-assisted hydrothermal method. The effect of the molar ratio of ammonium phosphate in phosphate (RAMP) and hydrothermal time on the resultant products was characterized in terms of crystalline structure, morphology, colloidal stability, and fluorescence behavior. When the RAMP is 50% and the hydrothermal time is 4 h, the product consists of a pure hexagonal HA phase and a uniform rod-like morphology, with 120- to 150-nm length and approximately 20-nm diameter. The corresponding dispersion is colloidally stable, and transparent for at least one week, and has an intense bright blue emission (centered at 440 nm, 11.6-ns lifetime, and 73.80% quantum efficiency) when excited by 340-nm UV light. Although prolonging the hydrothermal time and increasing the RAMP had no appreciable effect on the aqueous colloidal stability of HA nanoparticles, the fluorescence intensity was enhanced. The cause of HA fluorescence are more biased towards carbon dots (which are mainly polymer clusters and/or molecular fluorophores constituents) trapped in the hydroxyapatite crystal structure. Owing to these properties, a highly fluorescent HA colloidal dispersion could find applications in secure information storage.
Collapse
|
10
|
Effects of Strontium-Hydroxyapatite Mediated Active Compounds from Hippocampus Kuda Bleeler (HKB) on Osteogenesis. COATINGS 2019. [DOI: 10.3390/coatings9020141] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
Porous hydroxyapatite as a drug carrier is very popular and has many clinical applications. However, traditional hydroxyapatite materials have limited osteogenic capacity. Therefore, the development of a new hydroxyapatite drug delivery system is essential for bone tissue engineering. In this study, the metal element Sr was used to replace Ca, and the SrHA microspheres were successfully prepared by hydrothermal reaction. Scanning electron microscopy (SEM), X-ray diffraction (XRD), and X-ray photoelectron spectroscopy (XPS) were used to characterize SrHA (strontium-doped hydroxyapatite) microspheres obtained from hydrothermal reaction conditions. In addition, the drug utility was enhanced by loading the marine active compound 1-(5-bromo-2-hydroxy-4-methoxyphenyl)-ethanone (HKB). Furthermore, after co-culture with preosteoblasts, experiments indicated that HKB/SrHA composite microspheres had a more significant effect on the proliferation and differentiation of cells compared to pure SrHA. These HKB/SrHA composite microspheres may be applied to the drug delivery system of bone tissue repair.
Collapse
|
11
|
Huang J, Chen C, Huang Z, Yao D, Wu C, Cheng Y. Self-assembly pore-forming mechanism of foam boundary templates and the preparation of porous strontium hydroxyapatite microspheres by homogeneous precipitation. CrystEngComm 2019. [DOI: 10.1039/c9ce00704k] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The preparation of porous SrHAp microspheres, and the self-assembly pore-forming process and mechanism of a foam boundary template were systematically presented.
Collapse
Affiliation(s)
- Jiangsheng Huang
- School of Materials Science and Engineering
- Wuhan Institute of Technology
- Wuhan 430074
- China
- School of Biological and Chemical Engineering
| | - Changlian Chen
- School of Materials Science and Engineering
- Wuhan Institute of Technology
- Wuhan 430074
- China
| | - Zhiliang Huang
- School of Materials Science and Engineering
- Wuhan Institute of Technology
- Wuhan 430074
- China
| | - Donghui Yao
- School of Materials Science and Engineering
- Wuhan Institute of Technology
- Wuhan 430074
- China
| | - Changsheng Wu
- School of Materials Science and Engineering
- Wuhan Institute of Technology
- Wuhan 430074
- China
| | - Yilin Cheng
- School of Materials Science and Engineering
- Wuhan Institute of Technology
- Wuhan 430074
- China
| |
Collapse
|
12
|
Edwin N, Wilson P. Investigations on sonofragmentation of hydroxyapatite crystals as a function of strontium incorporation. ULTRASONICS SONOCHEMISTRY 2019; 50:188-199. [PMID: 30274891 DOI: 10.1016/j.ultsonch.2018.09.018] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/02/2018] [Revised: 07/28/2018] [Accepted: 09/15/2018] [Indexed: 06/08/2023]
Abstract
Hydroxyapatite (Ca10(PO4)6(OH)2, HA) is chemically similar to the mineral component of bones and hard tissues in mammals. Various cations can substitute calcium in the crystal structure of hydroxyapatite. Among them strontium triggers interest, because strontium incorporated hydroxyapatite increases the number of bone forming sites in addition to having good biocompatibility. In the present investigation strontium substituted hydroxyapatite (SHA) in the compositions range 0, 10, 20, 50 and 100 mol% have been synthesized by precipitation method and subjected to ultrasonic treatment for different time intervals to gain insight on the role of ultrasound in modifying the morphology of SHA. This study reveals that the aspect ratio of SHA varied with the duration of ultrasonication. SHA samples subjected to 5 min ultrasound experienced an increase in aspect ratio. Further increase of ultrasonication time tends to decrease the aspect ratio invariably for all SHA samples indicating particle fragmentation. The extent of sonofragmentation as a function of percentage incorporation of strontium in HA lattice has been studied as a part of the present investigation. This study indicated that strain in the HA lattice has correlation with strontium incorporation, leading to varied extent of sonofragmentation. Also, the investigation suggested that 100% substitution of calcium sites by strontium leads to a relatively lesser strain and hence poor fragmentation. To the best of our knowledge the report on sonofragmentation of HA crystallites as a function of strontium incorporation is first of its kind in the literature.
Collapse
Affiliation(s)
- Nimmy Edwin
- Department of Chemistry, Madras Christian College, Tambaram East, Chennai 600 059, Tamilnadu, India
| | - P Wilson
- Department of Chemistry, Madras Christian College, Tambaram East, Chennai 600 059, Tamilnadu, India.
| |
Collapse
|
13
|
Zhang J, Zhang T, Qiu Z, Liu S, Zhang J, Zhou W, Yu L, Lian S. Fine-Tunable Self-Activated Luminescence in Apatite-Type (Ba,Sr)5(PO4)3Br and the Defect Process. Inorg Chem 2018; 57:12354-12363. [DOI: 10.1021/acs.inorgchem.8b02105] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Jing Zhang
- Key Laboratory of Chemical Biology & Traditional Chinese Medicine Research (Ministry of Education), Key Laboratory of Sustainable Resources Processing and Advanced Materials of Hunan Province, College of Chemistry and Chemical Engineering, Hunan Normal University, Changsha, Hunan 410081, China
| | - Tingting Zhang
- College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, China
| | - Zhongxian Qiu
- Key Laboratory of Chemical Biology & Traditional Chinese Medicine Research (Ministry of Education), Key Laboratory of Sustainable Resources Processing and Advanced Materials of Hunan Province, College of Chemistry and Chemical Engineering, Hunan Normal University, Changsha, Hunan 410081, China
| | - Shubin Liu
- Research Computing Center, University of North Carolina, Chapel Hill, North Carolina 27599-3420, United States
| | - Jilin Zhang
- Key Laboratory of Chemical Biology & Traditional Chinese Medicine Research (Ministry of Education), Key Laboratory of Sustainable Resources Processing and Advanced Materials of Hunan Province, College of Chemistry and Chemical Engineering, Hunan Normal University, Changsha, Hunan 410081, China
| | - Wenli Zhou
- Key Laboratory of Chemical Biology & Traditional Chinese Medicine Research (Ministry of Education), Key Laboratory of Sustainable Resources Processing and Advanced Materials of Hunan Province, College of Chemistry and Chemical Engineering, Hunan Normal University, Changsha, Hunan 410081, China
| | - Liping Yu
- Key Laboratory of Chemical Biology & Traditional Chinese Medicine Research (Ministry of Education), Key Laboratory of Sustainable Resources Processing and Advanced Materials of Hunan Province, College of Chemistry and Chemical Engineering, Hunan Normal University, Changsha, Hunan 410081, China
| | - Shixun Lian
- Key Laboratory of Chemical Biology & Traditional Chinese Medicine Research (Ministry of Education), Key Laboratory of Sustainable Resources Processing and Advanced Materials of Hunan Province, College of Chemistry and Chemical Engineering, Hunan Normal University, Changsha, Hunan 410081, China
| |
Collapse
|
14
|
Valorization of Bone Waste of Saudi Arabia by Synthesizing Hydroxyapatite. Appl Biochem Biotechnol 2018; 186:779-788. [DOI: 10.1007/s12010-018-2768-5] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2018] [Accepted: 04/23/2018] [Indexed: 12/29/2022]
|
15
|
Hydroxyapatite nanoparticle based fluorometric determination and imaging of cysteine and homocysteine in living cells. Mikrochim Acta 2018; 185:271. [PMID: 29704070 DOI: 10.1007/s00604-018-2801-y] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2018] [Accepted: 04/12/2018] [Indexed: 12/31/2022]
Abstract
Fluorescent hydroxyapatite nanoparticles (HAP-NPs) were prepared by reacting calcium ion with phosphate in the presence of Eu(III) ion. The HAP-NPs display large Stokes' shift and two strong fluorescence emissions with peaks at 590 nm and 615 nm when excited at 250 nm. The HAP-NPs also have good photostability and water solubility. The HAP-NPs combined with Cu(II) were applied to fluorometric determination of cysteine and homocysteine in biological samples and in living cells. In this detection scheme, the fluorescence of HAP-NPs is initially quenched by Cu(II). The addition of biothiols results in the formation of Cu(II)-thiol complexes and leads to fluorescence recovery. The assay allows cysteine to be detected with a 110 nM detection limit, and homocysteine with a 160 nM detection limit. The assay was successfully applied to the analysis of cysteine in spiked human serum samples and to imaging of cysteine in HeLa cells, and this demonstrates its potential for clinical testing and in biomedical research. Graphical abstract Fluorescent hydroxyapatite nanoparticles were synthesized and combined with Cu2+ for fluorescence sensing of biothiols (cysteine and homocysteine) in complex biological samples and in living cells.
Collapse
|
16
|
Mani R, Jiang H, Gupta SK, Li Z, Duan X. Role of Synthesis Method on Luminescence Properties of Europium(II, III) Ions in β-Ca 2SiO 4: Probing Local Site and Structure. Inorg Chem 2018; 57:935-950. [PMID: 29356513 DOI: 10.1021/acs.inorgchem.7b01878] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
Abstract
The europium ion probes the symmetry disorder in the crystal structure, although the distortion due to charge compensation in the case of aliovalent dopant remains interesting, especially preparation involves low and high temperatures. This work studies the preparation of the β-Ca2SiO4 (from here on C2S) particle from Pechini (C2SP) and hydrothermal (C2SH) methods, and its luminescence variance upon doping with Eu2+ and Eu3+ ions. The blue shift of the charge-transfer band (CTB) in the excitation spectra indicates a larger Eu3+-O2- distance in Eu3+ doped C2SH. The changes in vibrational frequencies due to stretching and bending vibrations in the FTIR and the Raman spectra and binding energy shift in the XPS analysis confirmed the distorted SiO44- tetrahedra in C2SH. The high hydrothermal temperature and pressure produce distortion, which leads to symmetry lowering although doping of aliovalent ion may slightly change the position of the Ca atoms. The increasing asymmetry ratio value from C2SP to C2SH clearly indicates that the europium ion stabilized in a more distorted geometry. It is also supported by Judd-Ofelt analysis. The concentration quenching and site-occupancy of Eu3+ ions in two nonequivalent sites of C2S were discussed. The charge state and concentration of europium ions in C2SP and C2SH were determined using X-ray photoelectron spectroscopy measurements. The C2S particles were studied by X-ray powder diffraction, FTIR, Raman, BET surface area, TGA/DTA, electron microscopy, XPS, and luminescence spectroscopy. The impact of citrate ion on the morphology and particle size of C2SH has been hypothesized on the basis of the microscopy images. This study provides insights that are needed for further understanding the structure of C2S and thereby improves the applications in optical and biomedical areas and cement hydration.
Collapse
Affiliation(s)
- Rajaboopathi Mani
- State Key Laboratory of Crystal Materials, Shandong University , Jinan, Shandong 250100, China
| | - Huaidong Jiang
- State Key Laboratory of Crystal Materials, Shandong University , Jinan, Shandong 250100, China.,School of Physical Science and Technology, ShanghaiTech University , Shanghai 201210, China
| | - Santosh Kumar Gupta
- Radiochemistry Division, Bhabha Atomic Research Centre Trombay , Mumbai 400085, India
| | - Ziqing Li
- State Key Laboratory of Crystal Materials, Shandong University , Jinan, Shandong 250100, China
| | - Xiulan Duan
- State Key Laboratory of Crystal Materials, Shandong University , Jinan, Shandong 250100, China
| |
Collapse
|
17
|
Sundarabharathi L, Parangusan H, Ponnamma D, Al-Maadeed MAA, Chinnaswamy M. In-vitro biocompatibility, bioactivity and photoluminescence properties of Eu 3+ /Sr 2+ dual-doped nano-hydroxyapatite for biomedical applications. J Biomed Mater Res B Appl Biomater 2017; 106:2191-2201. [PMID: 29052356 DOI: 10.1002/jbm.b.34023] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2017] [Revised: 08/15/2017] [Accepted: 09/24/2017] [Indexed: 12/12/2022]
Abstract
In the present investigation, we have successfully synthesized luminescent Eu3+ -doped and Eu3+ /Sr2+ codoped hydroxyapatite (HA) nanoparticles through sol-gel assisted precipitation method with the aim of developing novel biomaterials containing osteoblast mineral (Sr2+ ) and luminescence activator (Eu3+ ). The structure, morphology, thermal stability, and luminescence properties of the resultant spherical nanoparticles (50-100 nm diameters) were studied. Moreover, the in-vitro bioactivity of Eu0.1 Sr0.1 HA nanoparticles was investigated by immersing in the simulated body fluid for many weeks. The antimicrobial activity results against gram positive and gram negative bacterial stains, showed better resistivity for the Eu0.1 Sr0.1 HA among the other compositions. The MTT [3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide] assay of live/dead cells cultured with Eu3+ /Sr2+ -doped HA nanoparticles retained its normal morphology and did not show a significant impact on cell proliferation at various incubation days, which evidence for the material's superior biocompatible nature even at a higher concentration of 375 µg/mL. Thus, the incorporation of dual ions in HA nanoparticles with strong luminescence properties develops potential biomaterial for live cell imaging and in nanomedicine. © 2017 Wiley Periodicals, Inc. J Biomed Mater Res Part B: Appl Biomater, 106B: 2191-2201, 2018.
Collapse
Affiliation(s)
| | | | | | | | - Mahendran Chinnaswamy
- Department of Physics, Sri Ramakrishna Mission Vidyalaya College of Arts and Science, Coimbatore, Tamil Nadu, India
| |
Collapse
|
18
|
Fan J, Wang S, Sun W, Guo S, Kang Y, Du J, Peng X. Anticancer drug delivery systems based on inorganic nanocarriers with fluorescent tracers. AIChE J 2017. [DOI: 10.1002/aic.15976] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Affiliation(s)
- Jiangli Fan
- State Key Laboratory of Fine Chemicals; Dalian University of Technology; Dalian 116024 China
| | - Suzhen Wang
- State Key Laboratory of Fine Chemicals; Dalian University of Technology; Dalian 116024 China
| | - Wen Sun
- State Key Laboratory of Fine Chemicals; Dalian University of Technology; Dalian 116024 China
| | - Shigang Guo
- State Key Laboratory of Fine Chemicals; Dalian University of Technology; Dalian 116024 China
| | - Yao Kang
- State Key Laboratory of Fine Chemicals; Dalian University of Technology; Dalian 116024 China
| | - Jianjun Du
- State Key Laboratory of Fine Chemicals; Dalian University of Technology; Dalian 116024 China
| | - Xiaojun Peng
- State Key Laboratory of Fine Chemicals; Dalian University of Technology; Dalian 116024 China
| |
Collapse
|
19
|
Abinaya Sindu P, Kolanthai E, Suganthi RV, Thanigai Arul K, Manikandan E, Catalani LH, Narayana Kalkura S. Green synthesis of Si-incorporated hydroxyapatite using sodium metasilicate as silicon precursor and in vitro antibiotic release studies. JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY B-BIOLOGY 2017; 175:163-172. [PMID: 28888169 DOI: 10.1016/j.jphotobiol.2017.08.030] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/22/2017] [Revised: 08/17/2017] [Accepted: 08/21/2017] [Indexed: 01/23/2023]
Abstract
The aim of the current study is to synthesize nanosized silicon incorporated HAp (Si-HAP) using sodium metasilicate as the silicon source. The sol-gel derived samples were further subjected to microwave irradiation. Incorporation of Si into HAp did not alter the HAp phase, as confirmed by the X-ray diffraction analysis (XRD). Moreover, variation in the lattice parameters of the Si-incorporated HAp indicates that Si is substituted into the HAp lattice. The decrease in the intensity of the peaks attributed to hydroxyl groups, which appeared in the FTIR and Raman spectra of Si-HAp, further confirms the Si substitution in HAp lattices. The silicon incorporation enhanced the nanorods length by 70%, when compared to that of pure HAp. Microwave irradiation improved the crystallinity of Si-HAp when compared to as-synthesized Si-HAp samples. As-synthesized Si-incorporated HAp sample showed an intense blue emission under UV excitation. Microwave irradiation reduced the intensity of blue emission and exhibited red shift due to the reduction of defects in the Si-HAp crystal. The morphological change from rod to spherical and ribbon-like forms was observed with an increase in silicon content. Further, Si-HAp exhibited better bioactivity and low dissolution rate. Initially there was a burst release of amoxicillin from all the samples, subsequently it followed a sustained release. The microwave-irradiated HAp showed extended period of sustained release than that of as-synthesized HAp and Si-HAp. Similarly, the microwave-irradiated Si-incorporated samples exhibited prolonged drug release, as compared to that of the as-synthesized samples. Hence, Si-HAp is rapidly synthesized by a simple and cost effective method without inducing any additional phases, as compared to the conventional sintering process. This study provides a new insight into the rapid green synthesis of Si-HAp. Si-HAp could emerge as a promising material for the bone tissue replacement and as a drug delivery system.
Collapse
Affiliation(s)
- P Abinaya Sindu
- Centre for Biotechnology, Anna University, Chennai 600 025, Tamil Nadu, India
| | - Elayaraja Kolanthai
- Departamento de Química Fundamental, Instituto de Química, Universidade de São Paulo, Av. Prof. Lineu Prestes, 748, CP 26077, 05513-970 São Paulo, Brazil; Crystal Growth Centre, Anna University, Chennai 600 025, Tamil Nadu, India..
| | - R V Suganthi
- Crystal Growth Centre, Anna University, Chennai 600 025, Tamil Nadu, India
| | - K Thanigai Arul
- Crystal Growth Centre, Anna University, Chennai 600 025, Tamil Nadu, India
| | - E Manikandan
- Dept. of Physics, Thiruvalluvar University, TVUCAS Campus, Thennangur 604408, Tamil Nadu, India
| | - Luiz H Catalani
- Departamento de Química Fundamental, Instituto de Química, Universidade de São Paulo, Av. Prof. Lineu Prestes, 748, CP 26077, 05513-970 São Paulo, Brazil
| | - S Narayana Kalkura
- Crystal Growth Centre, Anna University, Chennai 600 025, Tamil Nadu, India..
| |
Collapse
|
20
|
Effects for rapid conversion from abalone shell to hydroxyapaptite nanosheets by ionic surfactants. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2017; 77:708-712. [DOI: 10.1016/j.msec.2017.04.009] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/10/2016] [Revised: 01/17/2017] [Accepted: 04/01/2017] [Indexed: 01/25/2023]
|
21
|
Jiang D, Zhao H, Yang Y, Zhu Y, Chen X, Sun J, Yu K, Fan H, Zhang X. Investigation of luminescent mechanism: N-rich carbon dots as luminescence centers in fluorescent hydroxyapatite prepared using a typical hydrothermal process. J Mater Chem B 2017; 5:3749-3757. [DOI: 10.1039/c6tb03184f] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
N-Rich carbon dots (CDs) generated in the hydrothermal synthesis of HAp were trapped by growing HAp crystals to form fluorescent HAp materials.
Collapse
Affiliation(s)
- Dongli Jiang
- National Engineering Research Center for Biomaterials
- Sichuan University
- Chengdu
- China
- Pharmacy College
| | - Huan Zhao
- National Engineering Research Center for Biomaterials
- Sichuan University
- Chengdu
- China
| | - You Yang
- National Engineering Research Center for Biomaterials
- Sichuan University
- Chengdu
- China
| | - Yuda Zhu
- National Engineering Research Center for Biomaterials
- Sichuan University
- Chengdu
- China
| | - Xiaoqin Chen
- National Engineering Research Center for Biomaterials
- Sichuan University
- Chengdu
- China
| | - Jing Sun
- National Engineering Research Center for Biomaterials
- Sichuan University
- Chengdu
- China
| | - Kui Yu
- National Engineering Research Center for Biomaterials
- Sichuan University
- Chengdu
- China
| | - Hongsong Fan
- National Engineering Research Center for Biomaterials
- Sichuan University
- Chengdu
- China
| | - Xingdong Zhang
- National Engineering Research Center for Biomaterials
- Sichuan University
- Chengdu
- China
| |
Collapse
|
22
|
Zehbe R, Zehbe K. Strontium doped poly-ε-caprolactone composite scaffolds made by reactive foaming. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2016; 67:259-266. [PMID: 27287121 DOI: 10.1016/j.msec.2016.05.045] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/24/2015] [Revised: 04/05/2016] [Accepted: 05/12/2016] [Indexed: 11/16/2022]
Abstract
In the reconstruction and regeneration of bone tissue, a primary goal is to initiate bone growth and to stabilize the surrounding bone. In this regard, a potentially useful component in biomaterials for bone tissue engineering is strontium, which acts as cationic active agent, triggering certain intracellular pathways and acting as so called dual action bone agent which inhibits bone resorption while stimulating bone regeneration. In this study we established a novel processing for the foaming of a polymer (poly-ε-caprolactone) and simultaneous chemical reaction of a mixture of calcium and strontium hydroxides to the respective carbonates using supercritical carbon dioxide. The resultant porous composite scaffold was optimized in composition and strontium content and was characterized via different spectroscopic (infrared and Raman spectroscopy, energy dispersive X-ray spectroscopy), imaging (SEM, μCT), mechanical testing and in vitro methods (fluorescence vital staining, MTT-assay). As a result, the composite scaffold showed good in vitro biocompatibility with partly open pore structure and the expected chemistry. First mechanical testing results indicate sufficient mechanical stability to support future in vivo applications.
Collapse
Affiliation(s)
- Rolf Zehbe
- BLS Laboratories GmbH, Berlin, Germany; University of Potsdam, Institute of Physics and Astronomy, Potsdam, Germany.
| | - Kerstin Zehbe
- University of Potsdam, Department of Chemistry, Potsdam, Germany
| |
Collapse
|
23
|
Ning Z, Wang H, Li W, Sun C, Gao D. Facile Synthesis of Flower-like La-based Coordination Polymer and Its UV Absorption Property. CHEM LETT 2016. [DOI: 10.1246/cl.151055] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Affiliation(s)
- Zhanglei Ning
- College of Chemistry and Materials Science, Sichuan Normal University
- School of Chemical and Biological Engineering, University of Science and Technology Beijing
| | - Heng Wang
- College of Chemistry and Materials Science, Sichuan Normal University
| | - Wenjun Li
- School of Chemical and Biological Engineering, University of Science and Technology Beijing
| | - Changyan Sun
- School of Chemical and Biological Engineering, University of Science and Technology Beijing
| | - Daojiang Gao
- College of Chemistry and Materials Science, Sichuan Normal University
| |
Collapse
|
24
|
Nathanael AJ, Hong SI, Oh TH, Seo YH, Singh D, Han SS. Enhanced cell viability of hydroxyapatite nanowires by surfactant mediated synthesis and its growth mechanism. RSC Adv 2016. [DOI: 10.1039/c6ra01155a] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Hydroxyapatite (HA) nanowires were synthesized using cetyl-trimethyl-ammonium-bromide (CTAB) as a surfactant and exhibited enhanced cell viability over other HA nanostructures.
Collapse
Affiliation(s)
- A. Joseph Nathanael
- Department of Nano, Medical and Polymer Materials
- Yeungnam University
- Gyeongsan
- South Korea
- Nanomaterials Research Institute
| | - Sun Ig Hong
- Department of Nanomaterials Engineering
- Chungnam National University
- Daejeon
- South Korea
| | - Tae Hwan Oh
- Department of Nano, Medical and Polymer Materials
- Yeungnam University
- Gyeongsan
- South Korea
| | - Young Ho Seo
- Department of Nano, Medical and Polymer Materials
- Yeungnam University
- Gyeongsan
- South Korea
| | - Deepti Singh
- Department of Nano, Medical and Polymer Materials
- Yeungnam University
- Gyeongsan
- South Korea
| | - Sung Soo Han
- Department of Nano, Medical and Polymer Materials
- Yeungnam University
- Gyeongsan
- South Korea
| |
Collapse
|
25
|
Kong D, Xiao X, Qiu X, Zhang W, Yang Y. Synthesis of Hydroxyapatite Nanorods under Mild Conditions and Their Drug Release Properties. CHINESE J CHEM 2015. [DOI: 10.1002/cjoc.201500343] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
|
26
|
Multifunctional hydroxyapatite nanoparticles for drug delivery and multimodal molecular imaging. Mikrochim Acta 2015. [DOI: 10.1007/s00604-015-1504-x] [Citation(s) in RCA: 55] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
|
27
|
Zhu YP, Ma TY, Ren TZ, Yuan ZY. Mesoporous cerium phosphonate nanostructured hybrid spheres as label-free Hg²⁺ fluorescent probes. ACS APPLIED MATERIALS & INTERFACES 2014; 6:16344-16351. [PMID: 25163834 DOI: 10.1021/am504554h] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
Porous phosphonate-based organic-inorganic hybrid materials have been shown to have novel and amazing physicochemical properties due to the integration of superiorities from both inorganic components and organic moieties. Herein, mesoporous cerium phosphonate nanostructured hybrid spheres are prepared with the assistance of cationic surfactant cetyltrimethylammonium bromide while using ethylene diamine tetra(methylene phosphonic acid) as the coupling molecule. The resulting hybrid is constructed from the cerium phosphonate nanoparticles, accompanied by high specific surface area of 455 m(2) g(-1). The uniform incorporation of rare-earth element cerium and organophosphonic functionalities endows mesoporous cerium phosphonate with excellent fluorescence properties for the development of an optical sensor for selective Hg(2+) detection on the basis of the fluorescence-quenching mechanism. The signal response of mesoporous cerium phosphonate against the Hg(2+) concentration is linear over the range from 0.05 to 1.5 μmol L(-1), giving a limit of detection of 16 nmol L(-1) (at a signal-to-noise ratio of 3). Most of the common physiologically relevant cations and anions did not interfere with the detection of Hg(2+). This label-free system provides a promising platform for further use in bioimaging and biomedical fields.
Collapse
Affiliation(s)
- Yun-Pei Zhu
- Key Laboratory of Advanced Energy Materials Chemistry (Ministry of Education), Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), College of Chemistry, Nankai University , Tianjin 300071, China
| | | | | | | |
Collapse
|
28
|
Lin X, Zhao SD, Guo XY, Gao X, Shi JJ, Liu YL, Zhai HJ, Wang QW. Hydrothermal Synthesis and Efficient Visible Light Photocatalytic Properties of InVO4 Hierarchical Microspheres and InVO4 Nanowires. CHINESE J CHEM PHYS 2014. [DOI: 10.1063/1674-0068/27/04/428-432] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022]
|
29
|
Zhao Q, Lei Z, Huang S, Han X, Shao B, Lü W, Jia Y, Lv W, Jiao M, Wang Z, You H. Facile fabrication of single-phase multifunctional BaGdF5 nanospheres as drug carriers. ACS APPLIED MATERIALS & INTERFACES 2014; 6:12761-12770. [PMID: 25007920 DOI: 10.1021/am502718b] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
Multifunctional BaGdF5 nanospheres with mesoporous, luminescent, and magnetic properties have been successfully synthesized with the assistance of trisodium citrate by a hydrothermal method. The mesoporous structure is revealed by scanning electron microscope and transmission electron microscope images as well as N2 adsorption-desorption isotherm. The as-synthesized BaGdF5 nanospheres exhibit an intense broad bluish emission (centered at 450 nm) under the excitation of 390 nm, which might originate from the CO2·(-) radical-related defect produced by Cit(3-) groups. It is also shown that these BaGdF5 nanospheres brightened the T1-weighted images, suggesting that they could act as T1 contrast agents for magnetic resonance imaging. Using metformin hydrochloride as the model drug, the luminescent porous spheres show good drug storage/release capability. Furthermore, the emission intensity varies as a function of the cumulative drug release, making the drug-carrying system easily trackable and monitorable by detecting the luminescence intensity. Additionally, the paramagnetic property, originating from the unpaired electrons of Gd(3+) ions, opens the possibility of directing the magnetic targeted carrier to the pathological site by magnetic field gradient.
Collapse
Affiliation(s)
- Qi Zhao
- State Key Laboratory of Rare Earth Resource Utilization, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences , Changchun 130022, People's Republic of China
| | | | | | | | | | | | | | | | | | | | | |
Collapse
|
30
|
Kwon S, Singh RK, Kim TH, Patel KD, Kim JJ, Chrzanowski W, Kim HW. Luminescent mesoporous nanoreservoirs for the effective loading and intracellular delivery of therapeutic drugs. Acta Biomater 2014; 10:1431-42. [PMID: 24239681 DOI: 10.1016/j.actbio.2013.10.028] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2013] [Revised: 09/29/2013] [Accepted: 10/24/2013] [Indexed: 01/15/2023]
Abstract
Development of biocompatible and multifunctional nanocarriers is important for the therapeutic efficacy of drug molecules in the treatment of disease and tissue repair. A novel nanocarrier of luminescent hollowed mesoporous silica (L-hMS) was explored for the loading and controlled delivery of drugs. For the synthesis of L-hMS, self-activated luminescence hydroxyapatite (LHA) was used as a template. Different thicknesses (∼ 7-62 nm) of mesoporous silica shell were obtained by varying the volume of silica precursor and the subsequent removal of the LHA core, which resulted in hollow-cored (size of ∼ 40 nm × 10 nm) mesoporous silica nanoreservoirs, L-hMS. While the silica shell provided a highly mesoporous structure, enabling an effective loading of drug molecules, the luminescent property of LHA was also well preserved in both the silica-shelled and the hollow-cored nanocarriers. Doxorubicin (DOX), used as a model drug, was shown to be effectively loaded onto the mesopore structure and within the hollow space of the nanoreservoir. The DOX release was fairly pH-dependent, occurring more rapidly at pH 5.3 than at pH 7.4, and a long-term sustainable delivery over the test period of 2weeks was observed. The nanoreservoir exhibited favorable cell compatibility with low cytotoxicity and excellent cell uptake efficiency (over 90%). Treatment of HeLa cells with DOX-loaded L-hMS elicited a sufficient degree of biological efficacy of DOX, as confirmed in the DOX-induced apoptotic behaviors, including stimulation in caspase-3 expression, and was even more effective than the direct DOX treatment. Overall, the newly developed L-hMS nanoreservoirs may be potentially useful as a multifunctional (luminescent, mesoporous and biocompatible) carrier system to effectively load and sustainably deliver small molecules, including anticancer drugs.
Collapse
Affiliation(s)
- Sooyeon Kwon
- The Faculty of Pharmacy, The University of Sydney, NSW 2006, Australia
| | - Rajendra K Singh
- Institute of Tissue Regeneration Engineering (ITREN), Dankook University, Cheonan 330-714, South Korea; Biomaterials and Tissue Engineering Laboratory, Department of Nanobiomedical Science & BK21 PLUS NBM Global Research Center for Regenerative Medicine, Dankook University, Cheonan 330-714, South Korea
| | - Tae-Hyun Kim
- Institute of Tissue Regeneration Engineering (ITREN), Dankook University, Cheonan 330-714, South Korea; Biomaterials and Tissue Engineering Laboratory, Department of Nanobiomedical Science & BK21 PLUS NBM Global Research Center for Regenerative Medicine, Dankook University, Cheonan 330-714, South Korea
| | - Kapil D Patel
- Institute of Tissue Regeneration Engineering (ITREN), Dankook University, Cheonan 330-714, South Korea; Biomaterials and Tissue Engineering Laboratory, Department of Nanobiomedical Science & BK21 PLUS NBM Global Research Center for Regenerative Medicine, Dankook University, Cheonan 330-714, South Korea
| | - Jung-Ju Kim
- The Faculty of Pharmacy, The University of Sydney, NSW 2006, Australia; Institute of Tissue Regeneration Engineering (ITREN), Dankook University, Cheonan 330-714, South Korea; Biomaterials and Tissue Engineering Laboratory, Department of Nanobiomedical Science & BK21 PLUS NBM Global Research Center for Regenerative Medicine, Dankook University, Cheonan 330-714, South Korea; Department of Biomaterials Science, College of Dentistry, Dankook University, Cheonan 330-714, South Korea
| | | | - Hae-Won Kim
- Institute of Tissue Regeneration Engineering (ITREN), Dankook University, Cheonan 330-714, South Korea; Biomaterials and Tissue Engineering Laboratory, Department of Nanobiomedical Science & BK21 PLUS NBM Global Research Center for Regenerative Medicine, Dankook University, Cheonan 330-714, South Korea; Department of Biomaterials Science, College of Dentistry, Dankook University, Cheonan 330-714, South Korea.
| |
Collapse
|
31
|
Jiang F, Wang DP, Ye S, Zhao X. Strontium-substituted, luminescent and mesoporous hydroxyapatite microspheres for sustained drug release. JOURNAL OF MATERIALS SCIENCE. MATERIALS IN MEDICINE 2014; 25:391-400. [PMID: 24402509 DOI: 10.1007/s10856-013-5081-4] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/29/2013] [Accepted: 10/21/2013] [Indexed: 06/03/2023]
Abstract
The multifunctional strontium (Sr)-substituted hydroxyapatite microsphere was prepared via hydrothermal method, in which the luminescent and controlled drug release functions can be realized. The structure and morphology of the as-prepared microspheres were studied by using XRD, FTIR, SEM, TEM, HR-TEM, BET method. The optical properties was investigated by using photoluminescence (PL) and XPS measurement. Then, the as-prepared multifunctional microspheres were performed as a drug delivery carrier using vancomycin as a model drug. The experimental results show that the composition, morphology, luminescent properties and drug storage/release behaviour were obviously influenced by the amount of Sr. The microspheres with Sr(2+)/(Ca(2+) + Sr(2+)) = 0.3 of Sr substitution showed the maximum specific surface area, best pore structure and strongest PL intensity. All the samples presented remarkable sustained drug release kinetics. In addition, the PL intensity of SrHA in the drug delivery system increased with the cumulative release time (amount) of vancomycin, which would make the drug release might be possibly tracked by the change of the luminescent intensity. Our study indicated a potential prospect that the fabricated multifunctional SrHA mesoporous microspheres might be applied in the field of bone regeneration and drug delivery.
Collapse
Affiliation(s)
- Fei Jiang
- School of Materials Science and Engineering, Tongji University, Shanghai, 201804, China
| | | | | | | |
Collapse
|
32
|
Singh RK, Kim TH, Patel KD, Kim JJ, Kim HW. Development of biocompatible apatite nanorod-based drug-delivery system with in situ fluorescence imaging capacity. J Mater Chem B 2014; 2:2039-2050. [DOI: 10.1039/c3tb21156h] [Citation(s) in RCA: 41] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
|
33
|
Yang H, Zeng H, Hao L, Zhao N, Du C, Liao H, Wang Y. Effects of hydroxyapatite microparticle morphology on bone mesenchymal stem cell behavior. J Mater Chem B 2014; 2:4703-4710. [DOI: 10.1039/c4tb00424h] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
Hydroxyapatite (HAp) particles with different morphology but similar physicochemical properties were prepared by a novel and facile route. The interaction between the particles with BMSCs was investigated, and results revealed that particles’ shape has a strong influence on cellular behavior.
Collapse
Affiliation(s)
- Hui Yang
- School of Materials Science and Engineering
- South China University of Technology
- Guangzhou, China
- National Engineering Research Center for Tissue Restoration and Reconstruction
- Guangzhou, China
| | - Huijun Zeng
- Department of Anatomy
- Key Laboratory of Construction and Detection of Guangdong Province
- South Medical University
- Guangzhou, China
| | - Lijing Hao
- School of Materials Science and Engineering
- South China University of Technology
- Guangzhou, China
- National Engineering Research Center for Tissue Restoration and Reconstruction
- Guangzhou, China
| | - Naru Zhao
- School of Materials Science and Engineering
- South China University of Technology
- Guangzhou, China
- National Engineering Research Center for Tissue Restoration and Reconstruction
- Guangzhou, China
| | - Chang Du
- School of Materials Science and Engineering
- South China University of Technology
- Guangzhou, China
- National Engineering Research Center for Tissue Restoration and Reconstruction
- Guangzhou, China
| | - Hua Liao
- Department of Anatomy
- Key Laboratory of Construction and Detection of Guangdong Province
- South Medical University
- Guangzhou, China
| | - Yingjun Wang
- School of Materials Science and Engineering
- South China University of Technology
- Guangzhou, China
- National Engineering Research Center for Tissue Restoration and Reconstruction
- Guangzhou, China
| |
Collapse
|
34
|
Bazin D, Dessombz A, Nguyen C, Ea HK, Lioté F, Rehr J, Chappard C, Rouzière S, Thiaudière D, Reguer S, Daudon M. The status of strontium in biological apatites: an XANES/EXAFS investigation. JOURNAL OF SYNCHROTRON RADIATION 2014; 21:136-142. [PMID: 24365928 DOI: 10.1107/s1600577513023771] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/15/2013] [Accepted: 08/22/2013] [Indexed: 06/03/2023]
Abstract
Osteoporosis represents a major public health problem through its association with fragility fractures. The public health burden of osteoporotic fractures will rise in future generations, due in part to an increase in life expectancy. Strontium-based drugs have been shown to increase bone mass in postmenopausal osteoporosis patients and to reduce fracture risk but the molecular mechanisms of the action of these Sr-based drugs are not totally elucidated. The local environment of Sr(2+) cations in biological apatites present in pathological and physiological calcifications in patients without such Sr-based drugs has been assessed. In this investigation, X-ray absorption spectra have been collected for 17 pathological and physiological calcifications. These experimental data have been combined with a set of numerical simulations using the ab initio FEFF9 X-ray spectroscopy program which takes into account possible distortion and Ca/Sr substitution in the environment of the Sr(2+) cations. For selected samples, Fourier transforms of the EXAFS modulations have been performed. The complete set of experimental data collected on 17 samples indicates that there is no relationship between the nature of the calcification (physiological and pathological) and the adsorption mode of Sr(2+) cations (simple adsorption or insertion). Such structural considerations have medical implications. Pathological and physiological calcifications correspond to two very different preparation procedures but are associated with the same localization of Sr(2+) versus apatite crystals. Based on this study, it seems that for supplementation of Sr at low concentration, Sr(2+) cations will be localized into the apatite network.
Collapse
Affiliation(s)
- Dominique Bazin
- CNRS-LCMCP-UPMC, Collège de France, 11 place Marcelin Berthelot, 75231 Paris Cedex 05, France
| | - Arnaud Dessombz
- Laboratoire de Physique des Solides, Université Paris XI, Bâtiment 510, 91405 Orsay, France
| | | | - Hang Korng Ea
- INSERM, UMR-S 606, Lariboisière Hospital, F-75010 Paris, France
| | - Frédéric Lioté
- INSERM, UMR-S 606, Lariboisière Hospital, F-75010 Paris, France
| | - John Rehr
- Department of Physics, University of Washington, Seattle, WA 98195, USA
| | - Christine Chappard
- B2OA, UMR 7052 CNRS, Université Paris Diderot, 10 avenue de Verdun, F-75010 Paris, France
| | - Stephan Rouzière
- Laboratoire de Physique des Solides, Université Paris XI, Bâtiment 510, 91405 Orsay, France
| | - Dominique Thiaudière
- Synchrotron SOLEIL, L'Orme des Merisiers, Saint-Aubin, BP 48, 91192 Gif-sur-Yvette, France
| | - Solen Reguer
- Synchrotron SOLEIL, L'Orme des Merisiers, Saint-Aubin, BP 48, 91192 Gif-sur-Yvette, France
| | - Michel Daudon
- Service d'Explorations Fonctionnelles, AP-HP, Hôpital Tenon, 4 rue de la Chine, F-75020 Paris, France
| |
Collapse
|
35
|
Liu X, Hou W, Yang X, Shen Q. Pure-phase La2(WO4)3:Eu3+ nanocrystals and spindle-like NaLa(WO4)2:Yb3+/Er3+ nano/microcrystals: selective synthesis, morphologies and photoluminescent properties. Dalton Trans 2013; 42:11445-54. [PMID: 23824277 DOI: 10.1039/c3dt50562f] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The selective synthesis of pure-phase La2(WO4)3 nanocrystals and uniform spindle-like NaLa(WO4)2 nano/microcrystals with tunable size based on one reaction system has been reported for the first time. The sodium ion is crucial for the selective synthesis of La2(WO4)3 and NaLa(WO4)2. An additional hydrothermal treatment has a great effect on the morphology of La2(WO4)3, while the hydrothermal temperature and time, and the amount of glycerine, significantly influence the morphology and size of NaLa(WO4)2. Based on the time-dependent experiments, it is proposed that the Ostwald ripening is the formation mechanism of the spindle-like NaLa(WO4)2. The resultant La2(WO4)3:Er(3+) nanocrystals can emit a bright red color with a high purity under the excitation of 467 nm (blue region) and, more importantly, it can be easily dispersed in distilled water. The up-conversion emission intensity of NaLa(WO4)2:Yb(3+)/Er(3+) is increased rapidly with the Yb(3+) concentration under 980 nm laser excitation, suggesting the efficient energy transfer from Yb(3+) to Er(3+). Moreover, the emission color can be tuned from chartreuse to green by increasing the Yb(3+) concentration. These unique properties of La2(WO4)3 and NaLa(WO4)2 are closely related with their distinctive crystal structures, and it is anticipated that the findings in this work may give an insight into the fabrication and application of the rare earth tungstates.
Collapse
Affiliation(s)
- Xiaolin Liu
- Key Laboratory of Mesoscopic Chemistry of MOE, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210093, P R China
| | | | | | | |
Collapse
|
36
|
Yang H, Hao L, Du C, Wang Y. A systematic examination of the morphology of hydroxyapatite in the presence of citrate. RSC Adv 2013. [DOI: 10.1039/c3ra44839h] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022] Open
|
37
|
Zhang F, Zhao Z, Tan R, Guo Y, Cao L, Chen L, Li J, Xu W, Yang Y, Song W. Selective and effective adsorption of methyl blue by barium phosphate nano-flake. J Colloid Interface Sci 2012; 386:277-84. [DOI: 10.1016/j.jcis.2012.07.034] [Citation(s) in RCA: 64] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2012] [Revised: 07/11/2012] [Accepted: 07/12/2012] [Indexed: 11/27/2022]
|
38
|
Nanostructured hollow spheres of hydroxyapatite: preparation and potential application in drug delivery. Front Chem Sci Eng 2012. [DOI: 10.1007/s11705-012-1299-9] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
|
39
|
Ma MG. Hierarchically nanostructured hydroxyapatite: hydrothermal synthesis, morphology control, growth mechanism, and biological activity. Int J Nanomedicine 2012; 7:1781-91. [PMID: 22619527 PMCID: PMC3356187 DOI: 10.2147/ijn.s29884] [Citation(s) in RCA: 47] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
UNLABELLED Hierarchically nanosized hydroxyapatite (HA) with flower-like structure assembled from nanosheets consisting of nanorod building blocks was successfully synthesized by using CaCl(2), NaH(2)PO(4), and potassium sodium tartrate via a hydrothermal method at 200°C for 24 hours. The effects of heating time and heating temperature on the products were investigated. As a chelating ligand and template molecule, the potassium sodium tartrate plays a key role in the formation of hierarchically nanostructured HA. On the basis of experimental results, a possible mechanism based on soft-template and self-assembly was proposed for the formation and growth of the hierarchically nanostructured HA. Cytotoxicity experiments indicated that the hierarchically nanostructured HA had good biocompatibility. It was shown by in-vitro experiments that mesenchymal stem cells could attach to the hierarchically nanostructured HA after being cultured for 48 hours. OBJECTIVE The purpose of this study was to develop facile and effective methods for the synthesis of novel hydroxyapatite (HA) with hierarchical nanostructures assembled from independent and discrete nanobuilding blocks. METHODS A simple hydrothermal approach was applied to synthesize HA by using CaCl(2), NaH(2)PO(4), and potassium sodium tartrate at 200°C for 24 hours. The cell cytotoxicity of the hierarchically nanostructured HA was tested by MTT (3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide) assay. RESULTS HA displayed the flower-like structure assembled from nanosheets consisting of nanorod building blocks. The potassium sodium tartrate was used as a chelating ligand, inducing the formation and self-assembly of HA nanorods. The heating time and heating temperature influenced the aggregation and morphology of HA. The cell viability did not decrease with the increasing concentration of hierarchically nanostructured HA added. CONCLUSION A novel, simple and reliable hydrothermal route had been developed for the synthesis of hierarchically nanosized HA with flower-like structure assembled from nanosheets consisting of nanorod building blocks. The HA with the hierarchical nanostructure was formed via a soft-template assisted self-assembly mechanism. The hierarchically nanostructured HA has a good biocompatibility and essentially no in-vitro cytotoxicity.
Collapse
Affiliation(s)
- Ming-Guo Ma
- Institute of Biomass Chemistry and Technology, College of Materials Science and Technology, Beijing Forestry University, Beijing, People's Republic of China.
| |
Collapse
|
40
|
NING Z, CHANG Z, LI W, SUN C, ZHANG J, LIU Y. Solvothermal Synthesis and Optical Performance of One-dimensional Strontium Hydroxyapatite Nanorod. Chin J Chem Eng 2012. [DOI: 10.1016/s1004-9541(12)60367-x] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
|
41
|
Zhu R, Lai X, Halpert JE, Yu R, Wang D. Hierarchical Hydroxyapatite Microspheres Composed of Nanorods and Their Competitive Sorption Behavior for Heavy Metal Ions. Eur J Inorg Chem 2012. [DOI: 10.1002/ejic.201101038] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
|
42
|
Huang M, Wang Y. Synthesis of calcium phosphate microcapsules using yeast-based biotemplate. ACTA ACUST UNITED AC 2012. [DOI: 10.1039/c1jm13905c] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
|
43
|
Zhang C, Lin J. Defect-related luminescent materials: synthesis, emission properties and applications. Chem Soc Rev 2012; 41:7938-61. [DOI: 10.1039/c2cs35215j] [Citation(s) in RCA: 224] [Impact Index Per Article: 18.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
|
44
|
Zhang C, Huang S, Yang D, Kang X, Shang M, Peng C, Lin J. Tunable luminescence in Ce3+, Mn2+-codoped calcium fluorapatite through combining emissions and modulation of excitation: a novel strategy to white light emission. ACTA ACUST UNITED AC 2010. [DOI: 10.1039/c0jm01036g] [Citation(s) in RCA: 121] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
|