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Qian J, Su L, He J, Ruan R, Wang J, Wang Z, Xiao P, Liu C, Cao Y, Li W, Zhang J, Song J, Yang H. Dual-Modal Imaging and Synergistic Spinal Tumor Therapy Enabled by Hierarchical-Structured Nanofibers with Cascade Release and Postoperative Anti-adhesion. ACS NANO 2022; 16:16880-16897. [PMID: 36136320 DOI: 10.1021/acsnano.2c06848] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
Abstract
Most treatments for spinal cancer are accompanied by serious side effects including subsequent tumor recurrence, spinal cord compression, and tissue adhesion, thus a highly effective treatment is crucial for preserving spinal and neurological functionalities. Herein, trilayered electrospun doxorubicin@bovine serum albumin/poly(ε-caprolactone)/manganese dioxide (DOX@BSA/PCL/MnO2) nanofibers with excellent antiadhesion ability, dual glutathione/hydrogen peroxide (GSH/H2O2) responsiveness, and cascade release of Mn2+/DOX was fabricated for realizing an efficient spinal tumor therapy. In detail, Fenton-like reactions between MnO2 in the fibers outermost layer and intra-/extracellular glutathione within tumors promoted the first-order release of Mn2+. Then, sustained release of DOX from the fibers' core layer occurred along with the infiltration of degradation fluid. Such release behavior avoided toxic side effects of drugs, regulated inflammatory tumor microenvironment, amplified tumor elimination efficiency through synergistic chemo-/chemodynamic therapies, and inhibited recurrence of spinal tumors. More interestingly, magnetic resonance and photoacoustic dual-modal imaging enabled visualizations of tumor therapy and material degradation in vivo, achieving rapid pathological analysis and diagnosis. On the whole, such versatile hierarchical-structured nanofibers provided a reference for rapid and potent theranostic of spinal cancer in future clinical translations.
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Affiliation(s)
- Jiaqi Qian
- College of Chemical Engineering, Fuzhou University, 2 Xueyuan Road, Fuzhou 350108, P. R. China
- Qingyuan Innovation Laboratory, 1 Xueyuan Road, Quanzhou 362801, P. R. China
| | - Lichao Su
- College of Chemical Engineering, Fuzhou University, 2 Xueyuan Road, Fuzhou 350108, P. R. China
- Qingyuan Innovation Laboratory, 1 Xueyuan Road, Quanzhou 362801, P. R. China
| | - Jingjing He
- College of Chemical Engineering, Fuzhou University, 2 Xueyuan Road, Fuzhou 350108, P. R. China
- Qingyuan Innovation Laboratory, 1 Xueyuan Road, Quanzhou 362801, P. R. China
| | - Renjie Ruan
- College of Chemical Engineering, Fuzhou University, 2 Xueyuan Road, Fuzhou 350108, P. R. China
- Qingyuan Innovation Laboratory, 1 Xueyuan Road, Quanzhou 362801, P. R. China
| | - Jun Wang
- MOE Key Laboratory for Analytical Science of Food Safety and Biology, College of Chemistry, Fuzhou University, Fuzhou 350108, P. R. China
| | - Ziyi Wang
- College of Chemical Engineering, Fuzhou University, 2 Xueyuan Road, Fuzhou 350108, P. R. China
- Qingyuan Innovation Laboratory, 1 Xueyuan Road, Quanzhou 362801, P. R. China
| | - Peijie Xiao
- College of Chemical Engineering, Fuzhou University, 2 Xueyuan Road, Fuzhou 350108, P. R. China
- Qingyuan Innovation Laboratory, 1 Xueyuan Road, Quanzhou 362801, P. R. China
| | - Changhua Liu
- College of Chemical Engineering, Fuzhou University, 2 Xueyuan Road, Fuzhou 350108, P. R. China
- Qingyuan Innovation Laboratory, 1 Xueyuan Road, Quanzhou 362801, P. R. China
| | - Yang Cao
- College of Chemical Engineering, Fuzhou University, 2 Xueyuan Road, Fuzhou 350108, P. R. China
- Qingyuan Innovation Laboratory, 1 Xueyuan Road, Quanzhou 362801, P. R. China
| | - Weidong Li
- College of Chemical Engineering, Fuzhou University, 2 Xueyuan Road, Fuzhou 350108, P. R. China
- Qingyuan Innovation Laboratory, 1 Xueyuan Road, Quanzhou 362801, P. R. China
| | - Jin Zhang
- College of Chemical Engineering, Fuzhou University, 2 Xueyuan Road, Fuzhou 350108, P. R. China
- Qingyuan Innovation Laboratory, 1 Xueyuan Road, Quanzhou 362801, P. R. China
| | - Jibin Song
- MOE Key Laboratory for Analytical Science of Food Safety and Biology, College of Chemistry, Fuzhou University, Fuzhou 350108, P. R. China
| | - Huanghao Yang
- Qingyuan Innovation Laboratory, 1 Xueyuan Road, Quanzhou 362801, P. R. China
- MOE Key Laboratory for Analytical Science of Food Safety and Biology, College of Chemistry, Fuzhou University, Fuzhou 350108, P. R. China
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Suomi V, Treeby B, Jaros J, Makela P, Anttinen M, Saunavaara J, Sainio T, Kiviniemi A, Blanco R. Transurethral ultrasound therapy of the prostate in the presence of calcifications: A simulation study. Med Phys 2018; 45:4793-4805. [PMID: 30216469 DOI: 10.1002/mp.13183] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2018] [Revised: 07/24/2018] [Accepted: 09/04/2018] [Indexed: 12/14/2022] Open
Abstract
PURPOSE Transurethral ultrasound therapy is an investigational treatment modality which could potentially be used for the localized treatment of prostate cancer. One of the limiting factors of this therapy is prostatic calcifications. These attenuate and reflect ultrasound and thus reduce the efficacy of the heating. The aim of this study is to investigate how prostatic calcifications affect therapeutic efficacy, and to identify the best sonication strategy when calcifications are present. METHODS Realistic computational models were used on clinical patient data in order to simulate different therapeutic situations with naturally occurring calcifications as well as artificial calcifications of different sizes (1-10 mm) and distances (5-15 mm). Furthermore, different sonication strategies were tested in order to deliver therapy to the untreated tissue regions behind the calcifications. RESULTS The presence of calcifications in front of the ultrasound field was found to increase the peak pressure by 100% on average while the maximum temperature only rose by 9% during a 20-s sonication. Losses in ultrasound energy were due to the relatively large acoustic impedance mismatch between the prostate tissue and the calcifications (1.63 vs 3.20 MRayl) and high attenuation coefficient (0.78 vs 2.64 dB/MHz1.1 /cm), which together left untreated tissue regions behind the calcifications. In addition, elevated temperatures were seen in the region between the transducer and the calcifications. Lower sonication frequencies (1-4 MHz) were not able to penetrate through the calcifications effectively, but longer sonication durations (20-60 s) with selective transducer elements were effective in treating the tissue regions behind the calcifications. CONCLUSIONS Prostatic calcifications limit the reach of therapeutic ultrasound treatment due to reflections and attenuation. The tissue regions behind the calcifications can possibly be treated using longer sonication durations combined with proper transducer element selection. However, caution should be taken with calcifications located close to sensitive organs such as the urethra, bladder neck, or rectal wall.
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Affiliation(s)
- Visa Suomi
- Department of Radiology, Turku University Hospital, Kiinamyllynkatu 4-8, 20521, Turku, Finland
| | - Bradley Treeby
- Department of Medical Physics and Biomedical Engineering, University College London, Gower Street, London, WC1E 6BT, UK
| | - Jiri Jaros
- Centre of Excellence IT4Innovation, Faculty of Information Technology, Brno University of Technology, Bozetechova 1/2, 612 66, Brno, Czech Republic
| | - Pietari Makela
- Department of Radiology, Turku University Hospital, Kiinamyllynkatu 4-8, 20521, Turku, Finland
| | - Mikael Anttinen
- Department of Urology, Turku University Hospital, Kiinamyllynkatu 4-8, 20521, Turku, Finland
| | - Jani Saunavaara
- Department of Medical Physics, Turku University Hospital, Kiinamyllynkatu 4-8, 20521, Turku, Finland
| | - Teija Sainio
- Department of Medical Physics, Turku University Hospital, Kiinamyllynkatu 4-8, 20521, Turku, Finland
| | - Aida Kiviniemi
- Department of Radiology, Turku University Hospital, Kiinamyllynkatu 4-8, 20521, Turku, Finland
| | - Roberto Blanco
- Department of Radiology, Turku University Hospital, Kiinamyllynkatu 4-8, 20521, Turku, Finland
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Behzad K, Mat Yunus WM, Bahrami A, Kharazmi A, Soltani N. Synthesis and characterization of silicon nanorod on n-type porous silicon. APPLIED OPTICS 2016; 55:2143-2148. [PMID: 27140545 DOI: 10.1364/ao.55.002143] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
This work reports a new method for growing semiconductor nanorods on a porous silicon substrate. After preparation of n-type porous silicon samples, a thin layer of gold was deposited on them. Gold deposited samples were annealed at different temperatures. The structural, thermal, and optical properties of the samples were studied using a field emission scanning electron microscope (FESEM), photoacoustic spectroscopy, and photoluminescence spectroscopy, respectively. FESEM analysis revealed that silicon nanorods of different sizes grew on the annealed samples. Thermal behavior of the samples was studied using photoacoustic spectroscopy. Photoluminescence spectroscopy showed that the emission peaks were degraded by gold deposition and attenuated for all samples by annealing.
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Kharazmi A, Faraji N, Mat Hussin R, Saion E, Yunus WMM, Behzad K. Structural, optical, opto-thermal and thermal properties of ZnS-PVA nanofluids synthesized through a radiolytic approach. BEILSTEIN JOURNAL OF NANOTECHNOLOGY 2015; 6:529-536. [PMID: 25821695 PMCID: PMC4362026 DOI: 10.3762/bjnano.6.55] [Citation(s) in RCA: 62] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 06/01/2014] [Accepted: 01/26/2015] [Indexed: 06/04/2023]
Abstract
This work describes a fast, clean and low-cost approach to synthesize ZnS-PVA nanofluids consisting of ZnS nanoparticles homogeneously distributed in a PVA solution. The ZnS nanoparticles were formed by the electrostatic force between zinc and sulfur ions induced by gamma irradiation at a dose range from 10 to 50 kGy. Several experimental characterizations were conducted to investigate the physical and chemical properties of the samples. Fourier transform infrared spectroscopy (FTIR) was used to determine the chemical structure and bonding conditions of the final products, transmission electron microscopy (TEM) for determining the shape morphology and average particle size, powder X-ray diffraction (XRD) for confirming the formation and crystalline structure of ZnS nanoparticles, UV-visible spectroscopy for measuring the electronic absorption characteristics, transient hot wire (THW) and photoacoustic measurements for measuring the thermal conductivity and thermal effusivity of the samples, from which, for the first time, the values of specific heat and thermal diffusivity of the samples were then calculated.
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Affiliation(s)
- Alireza Kharazmi
- Department of Physics, Faculty of Science, University Putra Malaysia, Serdang 43400, Selangor, Malaysia
- School of Chemistry, University of New South Wales, Sydney, NSW 2052, Australia
| | - Nastaran Faraji
- School of Materials Science and Engineering, University of New South Wales, Sydney, NSW 2052, Australia
| | - Roslina Mat Hussin
- Department of Physics, Faculty of Science, University Putra Malaysia, Serdang 43400, Selangor, Malaysia
| | - Elias Saion
- Department of Physics, Faculty of Science, University Putra Malaysia, Serdang 43400, Selangor, Malaysia
| | - W Mahmood Mat Yunus
- Department of Physics, Faculty of Science, University Putra Malaysia, Serdang 43400, Selangor, Malaysia
| | - Kasra Behzad
- Department of Physics, Science Faculty, Shahr-e-Qods Branch, Islamic Azad University, Tehran, Iran
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Effect of Etching Time on Optical and Thermal Properties of p-Type Porous Silicon Prepared by Electrical Anodisation Method. ACTA ACUST UNITED AC 2012. [DOI: 10.1155/2012/581743] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
The porous silicon (PSi) layers were formed on p-type silicon (Si) wafer. The six samples were anodised electrically with 30 mA/cm2 fixed current density for different etching times. The structural, optical, and thermal properties of porous silicon on silicon substrates were investigated by photoluminescence (PL), photoacoustic spectroscopy (PAS), and UV-Vis-NIR spectrophotometer. The thickness and porosity of the layers were measured using the gravimetric method. The band gap of the samples was measured through the photoluminescence (PL) peak and absorption spectra, then they were compared. It shows that band gap value increases by raising the porosity. Photoacoustic spectroscopy (PAS) was carried out for measuring the thermal diffusivity (TD) of the samples.
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Preparation and Thermal Characterization of Annealed Gold Coated Porous Silicon. MATERIALS 2012; 5:157-168. [PMID: 28817037 PMCID: PMC5448951 DOI: 10.3390/ma5010157] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/09/2011] [Revised: 11/22/2011] [Accepted: 11/24/2011] [Indexed: 11/17/2022]
Abstract
Porous silicon (PSi) layers were formed on a p-type Si wafer. Six samples were anodised electrically with a 30 mA/cm² fixed current density for different etching times. The samples were coated with a 50-60 nm gold layer and annealed at different temperatures under Ar flow. The morphology of the layers, before and after annealing, formed by this method was investigated by scanning electron microscopy (SEM). Photoacoustic spectroscopy (PAS) measurements were carried out to measure the thermal diffusivity (TD) of the PSi and Au/PSi samples. For the Au/PSi samples, the thermal diffusivity was measured before and after annealing to study the effect of annealing. Also to study the aging effect, a comparison was made between freshly annealed samples and samples 30 days after annealing.
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de Oliveira JM, Andréo Filho N, Vinícius Chaud M, Angiolucci T, Aranha N, Germano Martins AC. Porosity measurement of solid pharmaceutical dosage forms by gamma-ray transmission. Appl Radiat Isot 2010; 68:2223-8. [DOI: 10.1016/j.apradiso.2010.06.015] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2009] [Revised: 05/02/2010] [Accepted: 06/11/2010] [Indexed: 11/24/2022]
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Britto Dhas SAM, Ramachandran E, Raji P, Ramachandran K, Natarajan S. Photoacoustic studies on the thermal properties of the NLO compound: L-alaninium maleate. CRYSTAL RESEARCH AND TECHNOLOGY 2007. [DOI: 10.1002/crat.200610870] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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Britto Dhas SAM, Suresh M, Raji P, Ramachandran K, Natarajan S. Photoacoustic studies on two new organic NLO materials: L-threonine and L-prolinium tartrate. CRYSTAL RESEARCH AND TECHNOLOGY 2007. [DOI: 10.1002/crat.200610795] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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Ramachandran E, Raji P, Ramachandran K, Natarajan S. Photoacoustic study of the thermal and optical properties of hippuric acid. CRYSTAL RESEARCH AND TECHNOLOGY 2006. [DOI: 10.1002/crat.200510609] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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