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Gulzar A, Ayoub N, Mir JF, Alanazi AM, Shah MA, Gulzar A. In vitro and in vivo MRI imaging and photothermal therapeutic properties of Hematite (α-Fe 2O 3) Nanorods. J Mater Sci Mater Med 2022; 33:10. [PMID: 35022850 PMCID: PMC8755697 DOI: 10.1007/s10856-021-06636-1] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/27/2021] [Accepted: 11/23/2021] [Indexed: 05/07/2023]
Abstract
Herein we report synthesis of hematite (α-Fe2O3) nanorods by calcinating hydrothermally synthesized goethite nanorods at 5000C. The structural, optical and MRI imaging guided cancer therapeutic properties of fabricated nanorods have been discussed in this manscript. FESEM and TEM imaging techniques were used to confirm the nanorod like morphology of as prepared materials. As we know that Fe2O3 nanorods with size in the range of 25-30 nm exhibit super magnetism. After coating with the PEG, the as prepared nanorods can be used as T2 MR imaging contrast agents. An excellent T2 MRI contrast of 38.763 mM-1s-1 achieved which is highest reported so far for α-Fe2O3. Besides the as prepared nanorods display an excellent photothermal conversion efficiency of 39.5% thus acts as an excellent photothermal therapeutic agent. Thus, we envision the idea of testing our nanorods for photothermal therapy and MR imaging application both in vitro and in vivo, achieving an excellent T2 MRI contrast and photothermal therapy effect with as prepared PEGylated nanorods.
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Affiliation(s)
- Aanisa Gulzar
- Laboratory for Multifunctional Nanomaterials, P.G Department of Physics, National Institute of Technology Srinagar, Hazratbal, Srinagar, J&K, 190006, India
| | - Nowsheena Ayoub
- Laboratory for Multifunctional Nanomaterials, P.G Department of Physics, National Institute of Technology Srinagar, Hazratbal, Srinagar, J&K, 190006, India
| | - Jaffar Farooq Mir
- Laboratory for Multifunctional Nanomaterials, P.G Department of Physics, National Institute of Technology Srinagar, Hazratbal, Srinagar, J&K, 190006, India
| | - Amer M Alanazi
- Pharmaceutical Chemistry Department, College of Pharmacy, King Saud University, Riyadh, 11451, Saudi Arabia
| | - M A Shah
- Laboratory for Multifunctional Nanomaterials, P.G Department of Physics, National Institute of Technology Srinagar, Hazratbal, Srinagar, J&K, 190006, India.
| | - Arif Gulzar
- Med X Institute, School of Biomedical Engineering Shanghai Jiao Tong University, Shanghai, 200030, China.
- Hevesy Laboratory, Center for Nuclear Technologies, DTU Health Tech, 4000, Roskilde, Denmark.
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Meulbroek M, Pujol F, Pérez F, Dalmau-Bueno A, Taboada H, Marazzi G, Carrillo A, Cabas A, Gata A, Aldabó E, Roldán B, Coll P, Añez F, Pantaleón J, Mochales M, Gómez V, Marín O, Mir JF, Decoca J, Saz J. BCN Checkpoint: same-day confirmation of reactive HIV rapid test with Point Of Care HIV-RNA accelerates linkage to care and reduces anxiety. HIV Med 2019; 19 Suppl 1:63-65. [PMID: 29488706 DOI: 10.1111/hiv.12595] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 12/13/2017] [Indexed: 12/01/2022]
Abstract
BACKGROUND The introduction in 2006 of the rapid HIV test by BCN Checkpoint in a non-clinical setting has been a successful step forwards in the uptake of testing. Nevertheless, HIV serostatus should be reported as HIV positive only when a reactive result has been tested again using a different assay (WHO guidelines 2015). The standard confirmation test has been the Western Blot (WB) test. However confirmation results take around 7 days to come back. AIMS This study explores the possibility of Point of Care PCR testing for a same-day confirmation. MATERIALS AND METHODS Between March 2015 and September 2016 a POC PCR test (Xpert® HIV-1 Qual) was performed in parallel to the Western Blot test after a reactive HIV rapid test (Alere Determine™ HIV-1/2 Ag/Ab Combo and Alere™ HIV Combo). HIV confirmed positive cases received emotional support by peers, were informed and prepared for treatment initiation and rapidly linked to HIV clinic. RESULTS During the study period 11 455 tests were performed to 7163 clients. A total of 249 reactive rapid HIV tests were found. For analysis a total of 33 cases were excluded due to the lack of PCR and/or WB test. Results of comparison of the 216 cases showed 194 concordant positive confirmations and 14 concordant negative results. In three cases PCR was positive and WB negative. In five cases PCR was negative and WB positive. CONCLUSION The POC PCR assay is easy to use and feasible in a community-based center. Reducing time for confirmation to 90 min has been possible in 91.2% (197/216) of cases with positive PCR result. In cases of a negative PCR result an additional test (WB, Elisa or PCR quantitative) was needed to distinguish false positive results (6.5%) from viral load results below level of detection (2.3%). Clients expressed satisfaction with same-day confirmation and less anxiety.
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Affiliation(s)
- M Meulbroek
- Projecte dels NOMS-Hispanosida, BCN Checkpoint, Barcelona, Spain
| | - F Pujol
- Projecte dels NOMS-Hispanosida, BCN Checkpoint, Barcelona, Spain
| | - F Pérez
- Projecte dels NOMS-Hispanosida, BCN Checkpoint, Barcelona, Spain
| | - A Dalmau-Bueno
- Projecte dels NOMS-Hispanosida, BCN Checkpoint, Barcelona, Spain
| | - H Taboada
- Projecte dels NOMS-Hispanosida, BCN Checkpoint, Barcelona, Spain
| | - G Marazzi
- Projecte dels NOMS-Hispanosida, BCN Checkpoint, Barcelona, Spain
| | - A Carrillo
- Projecte dels NOMS-Hispanosida, BCN Checkpoint, Barcelona, Spain
| | - A Cabas
- Projecte dels NOMS-Hispanosida, BCN Checkpoint, Barcelona, Spain
| | - A Gata
- Projecte dels NOMS-Hispanosida, BCN Checkpoint, Barcelona, Spain
| | - E Aldabó
- Projecte dels NOMS-Hispanosida, BCN Checkpoint, Barcelona, Spain
| | - B Roldán
- Projecte dels NOMS-Hispanosida, BCN Checkpoint, Barcelona, Spain
| | - P Coll
- Projecte dels NOMS-Hispanosida, BCN Checkpoint, Barcelona, Spain
| | - F Añez
- Projecte dels NOMS-Hispanosida, BCN Checkpoint, Barcelona, Spain
| | - J Pantaleón
- Projecte dels NOMS-Hispanosida, BCN Checkpoint, Barcelona, Spain
| | - M Mochales
- Projecte dels NOMS-Hispanosida, BCN Checkpoint, Barcelona, Spain
| | - V Gómez
- Projecte dels NOMS-Hispanosida, BCN Checkpoint, Barcelona, Spain
| | - O Marín
- Projecte dels NOMS-Hispanosida, BCN Checkpoint, Barcelona, Spain
| | - J F Mir
- Projecte dels NOMS-Hispanosida, BCN Checkpoint, Barcelona, Spain
| | - J Decoca
- Projecte dels NOMS-Hispanosida, BCN Checkpoint, Barcelona, Spain
| | - J Saz
- Projecte dels NOMS-Hispanosida, BCN Checkpoint, Barcelona, Spain
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