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Moslehi N, van Eekelen M, Velikov KP, Kegel WK. Ferrous Pyrophosphate and Mixed Divalent Pyrophosphates as Delivery Systems for Essential Minerals. ACS FOOD SCIENCE & TECHNOLOGY 2024; 4:1388-1401. [PMID: 38934009 PMCID: PMC11197097 DOI: 10.1021/acsfoodscitech.4c00050] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 01/25/2024] [Revised: 05/19/2024] [Accepted: 05/28/2024] [Indexed: 06/28/2024]
Abstract
Poorly water-soluble iron-containing compounds are promising iron fortificants. However, ensuring high bioaccessibility and low reactivity of iron is challenging. We present the potential application of ferrous pyrophosphate (Fe(II)PP) and Fe(II)-containing M2(1-x)Fe2x P2O7 salts (0 < x < 1, M = Ca, Zn, or Mn) for delivery of iron and a second essential mineral (M). After preparation by a facile and environment-friendly coprecipitation method, the salts were investigated for their composition, pH-dependent dissolution, iron-mediated discoloration of a black tea solution, and oxidation of vitamin C. Our results suggest that these salts are possible dual-fortificants with tunable composition that compared to Fe(II)PP (i) show lower (<0.5 mM) and enhanced (to 5 mM) iron dissolution in moderate and gastric pH, respectively, (ii) exhibit less discoloration and dissolved iron in tea when x = 0.470 for M = Ca or Zn and x = 0.086 for M = Mn, and (iii) do not increase the oxidation extent of vitamin C over 48 h when x = 0.06, 0.086, or 0.053 for M = Ca, Zn, or Mn, respectively.
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Affiliation(s)
- Neshat Moslehi
- Van’t
Hoff Laboratory for Physical and Colloid Chemistry, Debye Institute
for Nanomaterials Science, Utrecht University, Padualaan 8, 3584 CH Utrecht, The Netherlands
| | - Michiel van Eekelen
- Van’t
Hoff Laboratory for Physical and Colloid Chemistry, Debye Institute
for Nanomaterials Science, Utrecht University, Padualaan 8, 3584 CH Utrecht, The Netherlands
| | - Krassimir P. Velikov
- Unilever
Innovation Centre Wageningen, Bronland 14, 6708 WH Wageningen, The Netherlands
- Soft
Condensed Matter, Debye Institute for Nanomaterials Science, Utrecht University, Princetonplein 5, 3584 CC Utrecht, The Netherlands
- Institute
of Physics, University of Amsterdam, Science Park 904, 1098 XH Amsterdam, The Netherlands
| | - Willem K. Kegel
- Van’t
Hoff Laboratory for Physical and Colloid Chemistry, Debye Institute
for Nanomaterials Science, Utrecht University, Padualaan 8, 3584 CH Utrecht, The Netherlands
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2
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Yang M, Cai X, Wang C, Wang Z, Xue F, Chu C, Bai J, Liu Q, Ni X. Highly Stable Amorphous (Pyro)phosphate Aggregates: Pyrophosphate as a Carrier for Bioactive Ions and Drugs in Bone Repair Applications. ACS OMEGA 2024; 9:23724-23740. [PMID: 38854518 PMCID: PMC11154929 DOI: 10.1021/acsomega.4c01660] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/20/2024] [Revised: 05/03/2024] [Accepted: 05/09/2024] [Indexed: 06/11/2024]
Abstract
Pyrophosphate is widely used as an iron supplement because of its excellent complexation and hydrolysis ability; however, there are few reports on the use of pyrophosphate in active ionophores for bone repair. In this research, we proposed a simple and efficient ultrasonic method to prepare magnesium-calcium (pyro)phosphate aggregates (AMCPs). Due to strong hydration, AMCPs maintain a stable amorphous form even at high temperatures (400 °C). By changing the molar ratio of calcium and magnesium ions, the content of calcium and magnesium ions can be customized. AMCPs had surface negativity and complexing ability that realized the controlled release of ions (Ca2+, Mg2+, and P) and drugs (such as doxorubicin) over a long period. Pyrophosphate gave it an excellent bacteriostatic effect. Increasingly released Mg2+ exhibited improved bioactivity though the content of Ca2+ decreased. While Mg2+ content was regulated to 15 wt %, it performed significantly enhanced stimulation on the proliferation, attachment, and differentiation (ALP activity, calcium nodules, and the related gene expression of osteogenesis) of mouse embryo osteoblast precursor cells (MC3T3-E1). Furthermore, the high content of Mg2+ also effectively promoted the proliferation, attachment, and migration of human umbilical vein endothelial cells (HUVECs) and the expression of angiogenic genes. In conclusion, pyrophosphate was an excellent carrier for bioactive ions, and the AMCPs we prepared had a variety of active functions for multiscenario bone repair applications.
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Affiliation(s)
- Mengmeng Yang
- School of Materials Science and Engineering, Southeast University, Nanjing, 211189 Jiangsu, China
- Center of Medical Physics, The Affiliated Changzhou No. 2 People's Hospital of Nanjing Medical University, Changzhou, 213003 Jiangsu, China
- Center for Global Health, The Key Laboratory of Modern Toxicology, Ministry of Education, School of Public Health, Nanjing Medical University, Nanjing, 211166 Jiangsu, China
| | - Xiang Cai
- School of Materials Science and Engineering, Southeast University, Nanjing, 211189 Jiangsu, China
- Jiangsu Key Laboratory for Advanced Metallic Materials, Nanjing, 211189 Jiangsu, China
| | - Cheng Wang
- School of Materials Science and Engineering, Southeast University, Nanjing, 211189 Jiangsu, China
| | - Zan Wang
- School of Materials Science and Engineering, Southeast University, Nanjing, 211189 Jiangsu, China
| | - Feng Xue
- School of Materials Science and Engineering, Southeast University, Nanjing, 211189 Jiangsu, China
- Jiangsu Key Laboratory for Advanced Metallic Materials, Nanjing, 211189 Jiangsu, China
- Institute of Biomedical Devices (Suzhou), Southeast University, Suzhou 215163, China
| | - Chenglin Chu
- School of Materials Science and Engineering, Southeast University, Nanjing, 211189 Jiangsu, China
- Jiangsu Key Laboratory for Advanced Metallic Materials, Nanjing, 211189 Jiangsu, China
| | - Jing Bai
- School of Materials Science and Engineering, Southeast University, Nanjing, 211189 Jiangsu, China
- Jiangsu Key Laboratory for Advanced Metallic Materials, Nanjing, 211189 Jiangsu, China
- Institute of Biomedical Devices (Suzhou), Southeast University, Suzhou 215163, China
- Jiangsu Key Laboratory for Light Metal Alloys, Nanjing 211212, China
| | - Qizhan Liu
- School of Materials Science and Engineering, Southeast University, Nanjing, 211189 Jiangsu, China
- Center for Global Health, The Key Laboratory of Modern Toxicology, Ministry of Education, School of Public Health, Nanjing Medical University, Nanjing, 211166 Jiangsu, China
| | - Xinye Ni
- Center of Medical Physics, The Affiliated Changzhou No. 2 People's Hospital of Nanjing Medical University, Changzhou, 213003 Jiangsu, China
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Wang S, Qin A, Chau LY, Fok EWT, Choy MY, Brackman CJ, Siu GKH, Huang CL, Yip SP, Lee TMH. Amine-Functionalized Quantum Dots as a Universal Fluorescent Nanoprobe for a One-Step Loop-Mediated Isothermal Amplification Assay with Single-Copy Sensitivity. ACS APPLIED MATERIALS & INTERFACES 2022; 14:35299-35308. [PMID: 35895859 DOI: 10.1021/acsami.2c02508] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/04/2023]
Abstract
Loop-mediated isothermal amplification (LAMP) has received considerable attention for decentralized (point-of-care and on-site) nucleic acid testing in view of its simple temperature control (60-65 °C) and short assay time (15-60 min). There remains a challenge in its wide adoption and acceptance due to the limitations of the existing amplification result reporter probes, e.g., photobleaching of organic fluorophore and reduced sensitivity of the pH-sensitive colorimetric dye. Herein, we demonstrate CdSeS/ZnS quantum dots (semiconductor fluorescent nanocrystals with superior photostability than organic fluorophore) with surface modification of cysteamine (amine-QDs) as a new reporter probe for LAMP that enabled single-copy sensitivity (limit of detection of 83 zM; 20 μL reaction volume). For a negative LAMP sample (absence of target sequence), positively charged amine-QDs remained dispersed due to interparticle electrostatic repulsion. While for a positive LAMP sample (presence of target sequence), amine-QDs became precipitated. The characterization data showed that amine-QDs were embedded in magnesium pyrophosphate crystals (generated during positive LAMP), thus leading to their coprecipitation. This amine-QD-based one-step LAMP assay advances the field of QD-based nucleic acid amplification assays in two aspects: (1) compatibility─one-step amplification and detection (versus separation of amplification and detection steps); and (2) universality─the same amine-QDs for different target sequences (versus different oligonucleotide-modified QDs for different target sequences).
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Affiliation(s)
- Shiyao Wang
- Department of Biomedical Engineering, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong 000000, China
| | - Ailin Qin
- Department of Biomedical Engineering, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong 000000, China
- Department of Health Technology and Informatics, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong 000000, China
| | - Li Yin Chau
- Department of Biomedical Engineering, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong 000000, China
| | - Eunice W T Fok
- Agriculture, Fisheries and Conservation Department, Government of the Hong Kong Special Administrative Region, Hong Kong 000000, China
| | - Mei Yue Choy
- Agriculture, Fisheries and Conservation Department, Government of the Hong Kong Special Administrative Region, Hong Kong 000000, China
| | - Christopher J Brackman
- Agriculture, Fisheries and Conservation Department, Government of the Hong Kong Special Administrative Region, Hong Kong 000000, China
| | - Gilman K H Siu
- Department of Health Technology and Informatics, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong 000000, China
| | - Chien-Ling Huang
- Department of Health Technology and Informatics, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong 000000, China
| | - Shea Ping Yip
- Department of Health Technology and Informatics, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong 000000, China
| | - Thomas M H Lee
- Department of Biomedical Engineering, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong 000000, China
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Moslehi N, Bijlsma J, de Bruijn WJ, Velikov KP, Vincken JP, Kegel WK. Design and characterization of Ca-Fe(III) pyrophosphate salts with tunable pH-dependent solubility for dual-fortification of foods. J Funct Foods 2022. [DOI: 10.1016/j.jff.2022.105066] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022] Open
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5
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Meguerdichian AG, Jafari T, Shakil MR, Miao R, Achola LA, Macharia J, Shirazi-Amin A, Suib SL. Synthesis and Electrocatalytic Activity of Ammonium Nickel Phosphate, [NH4]NiPO4·6H2O, and β-Nickel Pyrophosphate, β-Ni2P2O7: Catalysts for Electrocatalytic Decomposition of Urea. Inorg Chem 2018; 57:1815-1823. [DOI: 10.1021/acs.inorgchem.7b02658] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Andrew G. Meguerdichian
- Institute of Materials
Science, University of Connecticut, U-3136, 97 N. Eagleville Road, Storrs, Connecticut 06269, United States
| | - Tahereh Jafari
- Institute of Materials
Science, University of Connecticut, U-3136, 97 N. Eagleville Road, Storrs, Connecticut 06269, United States
| | - Md. R. Shakil
- Department
of Chemistry, University of Connecticut, U-3060, 55 N. Eagleville Road, Storrs, Connecticut 06269, United States
| | - Ran Miao
- Department
of Chemistry, University of Connecticut, U-3060, 55 N. Eagleville Road, Storrs, Connecticut 06269, United States
| | - Laura A. Achola
- Department
of Chemistry, University of Connecticut, U-3060, 55 N. Eagleville Road, Storrs, Connecticut 06269, United States
| | - John Macharia
- Department
of Chemistry, University of Connecticut, U-3060, 55 N. Eagleville Road, Storrs, Connecticut 06269, United States
| | - Alireza Shirazi-Amin
- Department
of Chemistry, University of Connecticut, U-3060, 55 N. Eagleville Road, Storrs, Connecticut 06269, United States
| | - Steven L. Suib
- Institute of Materials
Science, University of Connecticut, U-3136, 97 N. Eagleville Road, Storrs, Connecticut 06269, United States
- Department
of Chemistry, University of Connecticut, U-3060, 55 N. Eagleville Road, Storrs, Connecticut 06269, United States
- Department of Chemical & Biomolecular Engineering, University of Connecticut, U-3222, 191 Auditorium Road, Storrs, Connecticut 06269, United States
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6
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Qin A, Fu LT, Wong JKF, Chau LY, Yip SP, Lee TMH. Precipitation of PEG/Carboxyl-Modified Gold Nanoparticles with Magnesium Pyrophosphate: A New Platform for Real-Time Monitoring of Loop-Mediated Isothermal Amplification. ACS APPLIED MATERIALS & INTERFACES 2017; 9:10472-10480. [PMID: 28276674 DOI: 10.1021/acsami.7b00046] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/07/2023]
Abstract
Gold nanoparticles have proven to be promising for decentralized nucleic acid testing by virtue of their simple visual readout and absorbance-based quantification. A major challenge toward their practical application is to achieve ultrasensitive detection without compromising simplicity. The conventional strategy of thermocycling amplification is unfavorable (because of both instrumentation and preparation of thermostable oligonucleotide-modified gold nanoparticle probes). Herein, on the basis of a previously unreported co-precipitation phenomenon between thiolated poly(ethylene glycol)/11-mercaptoundecanoic acid co-modified gold nanoparticles and magnesium pyrophosphate crystals (an isothermal DNA amplification reaction byproduct), a new ultrasensitive and simple DNA assay platform is developed. The binding mechanism underlying the co-precipitation phenomenon is found to be caused by the complexation of carboxyl and pyrophosphate with free magnesium ions. Remarkably, poly(ethylene glycol) does not hinder the binding and effectively stabilizes gold nanoparticles against magnesium ion-induced aggregation (without pyrophosphate). In fact, a similar phenomenon is observed in other poly(ethylene glycol)- and carboxyl-containing nanomaterials. When the gold nanoparticle probe is incorporated into a loop-mediated isothermal amplification reaction, it remains as a red dispersion for a negative sample (in the absence of a target DNA sequence) but appears as a red precipitate for a positive sample (in the presence of a target). This results in a first-of-its-kind gold nanoparticle-based DNA assay platform with isothermal amplification and real-time monitoring capabilities.
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Affiliation(s)
- Ailin Qin
- Interdisciplinary Division of Biomedical Engineering, ‡Department of Health Technology and Informatics, The Hong Kong Polytechnic University , Hung Hom, Kowloon, Hong Kong, China
| | - Lok Tin Fu
- Interdisciplinary Division of Biomedical Engineering, ‡Department of Health Technology and Informatics, The Hong Kong Polytechnic University , Hung Hom, Kowloon, Hong Kong, China
| | - Jacky K F Wong
- Interdisciplinary Division of Biomedical Engineering, ‡Department of Health Technology and Informatics, The Hong Kong Polytechnic University , Hung Hom, Kowloon, Hong Kong, China
| | - Li Yin Chau
- Interdisciplinary Division of Biomedical Engineering, ‡Department of Health Technology and Informatics, The Hong Kong Polytechnic University , Hung Hom, Kowloon, Hong Kong, China
| | - Shea Ping Yip
- Interdisciplinary Division of Biomedical Engineering, ‡Department of Health Technology and Informatics, The Hong Kong Polytechnic University , Hung Hom, Kowloon, Hong Kong, China
| | - Thomas M H Lee
- Interdisciplinary Division of Biomedical Engineering, ‡Department of Health Technology and Informatics, The Hong Kong Polytechnic University , Hung Hom, Kowloon, Hong Kong, China
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7
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Pujari-Palmer M, Pujari-Palmer S, Lu X, Lind T, Melhus H, Engstrand T, Karlsson-Ott M, Engqvist H. Pyrophosphate Stimulates Differentiation, Matrix Gene Expression and Alkaline Phosphatase Activity in Osteoblasts. PLoS One 2016; 11:e0163530. [PMID: 27701417 PMCID: PMC5049792 DOI: 10.1371/journal.pone.0163530] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2016] [Accepted: 09/09/2016] [Indexed: 12/29/2022] Open
Abstract
Pyrophosphate is a potent mitogen, capable of stimulating proliferation in multiple cell types, and a critical participant in bone mineralization. Pyrophosphate can also affect the resorption rate and bioactivity of orthopedic ceramics. The present study investigated whether calcium pyrophosphate affected proliferation, differentiation and gene expression in early (MC3T3 pre-osteoblast) and late stage (SAOS-2 osteosarcoma) osteoblasts. Pyrophosphate stimulated peak alkaline phosphatase activity by 50% and 150% at 100μM and 0.1μM in MC3T3, and by 40% in SAOS-2. The expression of differentiation markers collagen 1 (COL1), alkaline phosphatase (ALP), osteopontin (OPN), and osteocalcin (OCN) were increased by an average of 1.5, 2, 2 and 3 fold, by high concentrations of sodium pyrophosphate (100μM) after 7 days of exposure in MC3T3. COX-2 and ANK expression did not differ significantly from controls in either treatment group. Though both high and low concentrations of pyrophosphate stimulate ALP activity, only high concentrations (100μM) stimulated osteogenic gene expression. Pyrophosphate did not affect proliferation in either cell type. The results of this study confirm that chronic exposure to pyrophosphate exerts a physiological effect upon osteoblast differentiation and ALP activity, specifically by stimulating osteoblast differentiation markers and extracellular matrix gene expression.
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Affiliation(s)
- Michael Pujari-Palmer
- Division of Applied Material Science, Department of Engineering Sciences, Uppsala University, Uppsala, Sweden
| | - Shiuli Pujari-Palmer
- Division of Applied Material Science, Department of Engineering Sciences, Uppsala University, Uppsala, Sweden
| | - Xi Lu
- Division of Applied Material Science, Department of Engineering Sciences, Uppsala University, Uppsala, Sweden
| | - Thomas Lind
- Department of Medical Sciences, Uppsala University, Uppsala, Sweden
| | - Håkan Melhus
- Department of Medical Sciences, Uppsala University, Uppsala, Sweden
| | - Thomas Engstrand
- Stockholm Craniofacial Centre, Department of Reconstructive Plastic Surgery, Karolinska University Hospital, Stockholm, Sweden
- Department of Materials Chemistry, Polymer section, Uppsala University, Uppsala, Sweden
| | - Marjam Karlsson-Ott
- Division of Applied Material Science, Department of Engineering Sciences, Uppsala University, Uppsala, Sweden
- * E-mail:
| | - Hakan Engqvist
- Division of Applied Material Science, Department of Engineering Sciences, Uppsala University, Uppsala, Sweden
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8
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Colquhoun R, Gadegaard N, Healy DM, Tanner KE. Characterisation of CorGlaes(®) Pure 107 fibres for biomedical applications. JOURNAL OF MATERIALS SCIENCE. MATERIALS IN MEDICINE 2016; 27:149. [PMID: 27582069 PMCID: PMC5007269 DOI: 10.1007/s10856-016-5752-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 06/30/2016] [Accepted: 07/07/2016] [Indexed: 06/06/2023]
Abstract
A degradable ultraphosphate (55 mol % P2O5) quinternary phosphate glass composition has been characterised in terms of its chemical, mechanical and degradation properties both as a bulk material and after drawing into fibres. This glass formulation displayed a large processing window simplifying fibre drawing. The fibres displayed stiffness and strength of 65.5 ± 20.8 GPa and 426±143 MPa. While amorphous discs of the glass displayed a linear dissolution rate of 0.004 mg cm(-2) h(-1) at 37 °C, in a static solution with a reduction in media pH. Once drawn into fibres, the dissolution process dropped the pH to <2 in distilled water, phosphate buffer saline and corrected-simulated body fluid, displaying an autocatalytic effect with >90 % mass loss in 4 days, about seven times faster than anticipated for this solution rate. Only cell culture media was able to buffer the pH taking over a week for full fibre dissolution, however, still four times faster dissolution rate than as a bulk material. However, at early times the development of a HCA layer was seen indicating potential bioactivity. Thus, although initial analysis indicated potential orthopaedic implant applications, autocatalysis leads to accelerating degradation in vitro.
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Affiliation(s)
- Ross Colquhoun
- Biomedical Engineering Division, School of Engineering, University of Glasgow, Glasgow, G12 8QQ, UK
- Present address: Scottish Enterprise, Glasgow, G2 8LU, UK
| | - Nikolaj Gadegaard
- Biomedical Engineering Division, School of Engineering, University of Glasgow, Glasgow, G12 8QQ, UK
| | - David M Healy
- Giltech Ltd, 12 North Harbour St, Ayr, KA8 8BN, UK
- Present address: IDP Services Ltd., Ayr, KA7 4EG, UK
| | - K Elizabeth Tanner
- Biomedical Engineering Division, School of Engineering, University of Glasgow, Glasgow, G12 8QQ, UK.
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Tian T, Blanco E, Smoukov SK, Velev OD, Velikov KP. Dissolution behaviour of ferric pyrophosphate and its mixtures with soluble pyrophosphates: Potential strategy for increasing iron bioavailability. Food Chem 2016; 208:97-102. [DOI: 10.1016/j.foodchem.2016.03.078] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2015] [Revised: 03/03/2016] [Accepted: 03/22/2016] [Indexed: 11/26/2022]
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10
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Colloidal stability and chemical reactivity of complex colloids containing Fe3+. Food Chem 2014; 155:161-6. [DOI: 10.1016/j.foodchem.2014.01.045] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2013] [Revised: 12/10/2013] [Accepted: 01/15/2014] [Indexed: 11/19/2022]
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11
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Rossi L, Velikov KP, Philipse AP. Colloidal iron(III) pyrophosphate particles. Food Chem 2014; 151:243-7. [DOI: 10.1016/j.foodchem.2013.11.050] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2013] [Revised: 10/30/2013] [Accepted: 11/11/2013] [Indexed: 10/26/2022]
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12
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Gao Y, Zhao J, Run Z, Zhang G, Pang H. Microporous Ni11(HPO3)8(OH)6 nanocrystals for high-performance flexible asymmetric all solid-state supercapacitors. Dalton Trans 2014; 43:17000-5. [DOI: 10.1039/c4dt02831g] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Microporous Ni11(HPO3)8(OH)6 nanocrystals were successfully applied to create a flexible solid-state asymmetric supercapacitor, which achieved a maximum energy density of 0.45 mW h cm−3 with high stability for 10 000 cycles.
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Affiliation(s)
- Yanping Gao
- College of Chemistry and Chemical Engineering
- Anyang Normal University
- Anyang, P. R. China
| | - Junhong Zhao
- College of Chemistry and Chemical Engineering
- Anyang Normal University
- Anyang, P. R. China
| | - Zhen Run
- College of Chemistry and Chemical Engineering
- Anyang Normal University
- Anyang, P. R. China
| | - Guangqin Zhang
- College of Chemistry and Chemical Engineering
- Anyang Normal University
- Anyang, P. R. China
| | - Huan Pang
- College of Chemistry and Chemical Engineering
- Anyang Normal University
- Anyang, P. R. China
- State Key Laboratory of Coordination Chemistry
- Nanjing University
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Pang H, Wei C, Ma Y, Zhao S, Li G, Zhang J, Chen J, Li S. Nickel Phosphite Superstructures Assembled by Nanotubes: Original Application for Effective Electrode Materials of Supercapacitors. Chempluschem 2013. [DOI: 10.1002/cplu.201300015] [Citation(s) in RCA: 50] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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14
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Pang H, Yan Z, Ma Y, Li G, Chen J, Zhang J, Du W, Li S. Cobalt pyrophosphate nano/microstructures as promising electrode materials of supercapacitor. J Solid State Electrochem 2013. [DOI: 10.1007/s10008-013-2007-5] [Citation(s) in RCA: 42] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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Pang H, Liu Y, Li J, Ma Y, Li G, Ai Y, Chen J, Zhang J, Zheng H. Cobalt phosphite microarchitectures assembled by ultralong nanoribbons and their application as effective electrochemical capacitor electrode materials. NANOSCALE 2013; 5:503-507. [PMID: 23128833 DOI: 10.1039/c2nr32597g] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
Cobalt phosphite (Co(11)(HPO(3))(8)(OH)(6)) microarchitectures assembled by ultralong nanoribbons are successfully synthesized by a mild hydrothermal condition without any additives. The uniform ultralong nanoribbon has a width of 100 nm and length of 20-30 μm. More importantly, Co(11)(HPO(3))(8)(OH)(6) microarchitectures are also successfully applied as an electrochemical supercapacitor with a good specific capacitance (312 F g(-1) at 1.25 A g(-1)), good rate capability and excellent cycling property (maintaining about 89.4% at 1.25 A g(-1) after 3000 cycles).
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Affiliation(s)
- Huan Pang
- College of Chemistry and Chemical Engineering, Anyang Normal University, Anyang, 455000, Henan, PR China.
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Zhao J, Pang H, Deng J, Ma Y, Yan B, Li X, Li S, Chen J, Wang W. Mesoporous uniform ammonium nickel phosphate hydrate nanostructures as high performance electrode materials for supercapacitors. CrystEngComm 2013. [DOI: 10.1039/c3ce40712h] [Citation(s) in RCA: 43] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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17
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van Leeuwen YM, Velikov KP, Kegel WK. Repeptization by dissolution in a colloidal system of iron(III) pyrophosphate. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2012; 28:16531-16535. [PMID: 23151223 DOI: 10.1021/la303668a] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
Repeptization (redispersion) from an aggregated state is usually only possible in charge-stabilized colloidal systems if the system is either coagulated in the secondary minimum of the interaction potential or if the system cannot settle completely into the primary minimum. In this work, we analyze the zeta potential, conductivity, and long-term stability of colloidal systems of iron(III) pyrophosphate and surprisingly find that the system seems to defy conventional wisdom as it can be repeptized from its coagulated state regardless of aging time and background ions. Moreover, after having been stored for up to a month in 2 M NaCl, dialysis of iron pyrophosphate will yield a colloidal dispersion that is actually stable for a longer period of time than a fresh system with background electrolyte removed.
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Affiliation(s)
- Y Mikal van Leeuwen
- Van 't Hoff Laboratory for Physical and Colloidal Chemistry, Utrecht University, Padualaan 8, 3584 CH Utrecht, The Netherlands.
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Pang H, Yan Z, Wang W, Chen J, Zhang J, Zheng H. Facile fabrication of NH4CoPO4·H2O nano/microstructures and their primarily application as electrochemical supercapacitor. NANOSCALE 2012; 4:5946-5953. [PMID: 22833216 DOI: 10.1039/c2nr31208e] [Citation(s) in RCA: 44] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
Various NH(4)CoPO(4)·H(2)O nano/microstructures (oblong plate, microplate, microflower, hierarchical architectures) have been synthesized through a facile chemical precipitation method without surfactants and templates. More importantly, the supercapacitive performances of NH(4)CoPO(4)·H(2)O nano/microstructures were firstly studied using cyclic voltammetry, galvanostatic charge/discharge measurements, and electrochemical impedance spectroscopy methods in 3.0 M KOH solution. These results indicated that NH(4)CoPO(4)·H(2)O hierarchical architectures electrodes exhibit effective supercapacitive characteristics in aqueous KOH electrolyte. The specific capacitance of NH(4)CoPO(4)·H(2)O electrode is up to 369.4 F g(-1) at a current density of 0.625 A g(-1) and the material has a long cycle life which can maintain 99.7% of initial specific capacitance after 400 cycles.
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Affiliation(s)
- Huan Pang
- School of Energy, Soochow University, Suzhou, Jiangsu 215006, PR China.
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van Leeuwen YM, Velikov KP, Kegel WK. Stabilization through precipitation in a system of colloidal iron(III) pyrophosphate salts. J Colloid Interface Sci 2012; 381:43-7. [DOI: 10.1016/j.jcis.2012.05.018] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2012] [Revised: 05/09/2012] [Accepted: 05/10/2012] [Indexed: 11/28/2022]
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