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Md Yusop AH, Wan Ali WFF, Jamaludin FH, Szali Januddi F, Sarian MN, Saad N, Wong TW, Hidayat A, Nur H. Evaluation of in vitro corrosion behavior and biocompatibility of poly[xylitol-(1,12-dodecanedioate)](PXDD)-HA coated porous iron for bone scaffolds applications. Biotechnol J 2024; 19:e2300464. [PMID: 38509814 DOI: 10.1002/biot.202300464] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2023] [Revised: 02/02/2024] [Accepted: 02/15/2024] [Indexed: 03/22/2024]
Abstract
The present study evaluates the corrosion behavior of poly[xylitol-(1,12-dodecanedioate)](PXDD)-HA coated porous iron (PXDD140/HA-Fe) and its cell-material interaction aimed for temporary bone scaffold applications. The physicochemical analyses show that the addition of 20 wt.% HA into the PXDD polymers leads to a higher crystallinity and lower surface roughness. The corrosion assessments of the PXDD140/HA-Fe evaluated by electrochemical methods and surface chemistry analysis indicate that HA decelerates Fe corrosion due to a lower hydrolysis rate following lower PXDD content and being more crystalline. The cell viability and cell death mode evaluations of the PXDD140/HA-Fe exhibit favorable biocompatibility as compared to bare Fe and PXDD-Fe scaffolds owing to HA's bioactive properties. Thus, the PXDD140/HA-Fe scaffolds possess the potential to be used as a biodegradable bone implant.
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Affiliation(s)
- Abdul Hakim Md Yusop
- Materials Research & Consultancy Group (MRCG), Faculty of Mechanical Engineering, Universiti Teknologi Malaysia, Johor, Malaysia
- Department of Materials, Manufacturing and Industrial Engineering, Faculty of Mechanical Engineering, Universiti Teknologi Malaysia, Johor, Malaysia
| | - Wan Fahmin Faiz Wan Ali
- Materials Research & Consultancy Group (MRCG), Faculty of Mechanical Engineering, Universiti Teknologi Malaysia, Johor, Malaysia
- Department of Materials, Manufacturing and Industrial Engineering, Faculty of Mechanical Engineering, Universiti Teknologi Malaysia, Johor, Malaysia
| | - Farah Hidayah Jamaludin
- Advanced Membrane Technology Research Centre, Universiti Teknologi Malaysia, Johor, Malaysia
| | - Fatihhi Szali Januddi
- Advanced Facilities Engineering Technology Research Cluster (AFET), Plant Engineering Technology (PETech) Section, Malaysian Institute of Industrial Technology, Universiti Kuala Lumpur, Masai, Johor, Malaysia
| | - Murni Nazira Sarian
- Institute of Systems Biology (INBIOSIS), Universiti Kebangsaan Malaysia, Bandar Baru Bangi, Selangor, Malaysia
| | - Norazalina Saad
- Laboratory of UPM - MAKNA Cancer Research, Institute of Bioscience, Universiti Putra Malaysia, Serdang, Selangor, Malaysia
| | - Tuck-Whye Wong
- Advanced Membrane Technology Research Centre, Universiti Teknologi Malaysia, Johor, Malaysia
| | - Arif Hidayat
- Department of Physics, Faculty of Mathematics and Natural Sciences Universitas Negeri Malang, Malang, Indonesia
| | - Hadi Nur
- Department of Chemistry, Faculty of Mathematics and Natural Sciences, Universitas Negeri Malang, Malang, Indonesia
- Center of Advanced Materials for Renewable Energy (CAMRY), Universiti Negeri Malang, Malang, Indonesia
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Agista WP, Subadra SUI, Taufiq A, Hidayat A, Handoko E, Alaydrus M, Amrillah T, Jeerapan I. Exploring the role of Mn 2+ in the structure, magnetic properties, and radar absorption performance of Mn xFe 3-xO 4-DEA/MWCNT nanocomposites. RSC Adv 2023; 13:29332-29341. [PMID: 37818268 PMCID: PMC10560876 DOI: 10.1039/d3ra05333d] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2023] [Accepted: 09/13/2023] [Indexed: 10/12/2023] Open
Abstract
Iron oxide/carbon-based nanocomposites are known as an ideal combination of magnetic-conductive materials that were recently developed in radar absorption application; one example is the Fe3O4/multiwalled carbon nanotubes (MWCNTs). In this study, we try to boost their radar absorption ability by Mn-ion doping. Mn is an appropriate Fe substitute that is predicted to alter the magnetic properties and enhance the conductivity, which are crucial to developing their radar absorption properties. Diethylamine (DEA) is also used as a capping agent to improve the size and shape of the nanocomposite. In this study, a MnxFe3-xO4-DEA/MWCNT nanocomposite is successfully prepared by the coprecipitation method using a variation of x = 0, 0.25, 0.5, 0.75, and 1. We found that the sample's magnetic saturation (Ms) decreases, while the reflection loss (RL) increases with increasing the molar fraction of Mn. The enhancement of the radar wave absorption in the sample is dominated by dielectric losses due to the increase of electrical conductivity and interfacial polarization with the addition of Mn in the nanocomposites. We believe that our finding could shed light on the role of doping elements to develop the radar absorption properties, and further pave the way for the real implementation of iron oxides/graphene-based nanocomposite as radar-absorbing materials (RAMs).
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Affiliation(s)
- Wida Puteri Agista
- Department of Physics, Faculty of Mathematics and Natural Science, State University of Malang Jl. Semarang 5 Malang 65145 Indonesia
| | - St Ulfawanti Intan Subadra
- Department of Physics, Faculty of Mathematics and Natural Science, State University of Malang Jl. Semarang 5 Malang 65145 Indonesia
| | - Ahmad Taufiq
- Department of Physics, Faculty of Mathematics and Natural Science, State University of Malang Jl. Semarang 5 Malang 65145 Indonesia
| | - Arif Hidayat
- Department of Physics, Faculty of Mathematics and Natural Science, State University of Malang Jl. Semarang 5 Malang 65145 Indonesia
| | - Erfan Handoko
- Department of Physics, Faculty of Mathematics and Natural Sciences, Universitas Negeri Jakarta Jl. Rawamangun Muka 1 Jakarta 13220 Indonesia
| | - Mudrik Alaydrus
- Department of Electrical Engineering, Universitas Mercu Buana Jl. Meruya Selatan 1 Jakarta 11650 Indonesia
| | - Tahta Amrillah
- Nanotechnology Engineering, Faculty of Advanced Technology and Multidiscipline, Universitas Airlangga Jl. Ir. Sukarno 1 Surabaya 60115 Indonesia
| | - Itthipon Jeerapan
- Division of Physical Science, Faculty of Science, Prince of Songkla University Hat Yai Songkhla 90110 Thailand
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Wiwoho BS, Astuti IS, Purwanto P, Deffinika I, Alfarizi IAG, Sucahyo HR, Gusti R, Herwanto MT, Herlambang GA. Assessing long-term rainfall trends and changes in a tropical watershed Brantas, Indonesia: an approach for quantifying the agreement among satellite-based rainfall data, ground rainfall data, and small-scale farmers questionnaires. Nat Hazards (Dordr) 2023; 117:1-28. [PMID: 37360798 PMCID: PMC10171729 DOI: 10.1007/s11069-023-05969-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 03/10/2022] [Accepted: 02/07/2023] [Indexed: 06/28/2023]
Abstract
The agreement between meteorological data and societal perception is essential in supporting a robust policy making and its implementation. In humid tropic watersheds like Brantas, such consensus is important for water resources management and policies. This study exemplifies an effort to understand the long-term rainfall characteristics within the watershed and to build a common link among the differing data sources: CHIRPS rainfall satellite data, rain gauge data, and farmers perceptions. Six rainfall characteristics were derived using statistical measures from the scientific data and then were translated to a series of structured questionnaires given to small-scale farmers. A consensus matrix was built to examine the level of agreement among three data sources, supporting the spatial pattern of the meteorological data and farmers perception. Two rainfall attributes were classified with high agreement, four with moderate and one with low agreement. The agreements and discrepancies of rainfall characteristics were found in the study area. The discrepancies originated from the accuracy in translating scientific measurements to practical meanings for farmers, complexity of the farming system, the nature of phenomena in questions, and farmers' ability to record long-term climatic events. This study shows an implication that a combined approach to link scientific data and societal data is needed to support powerful climate policy making.
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Affiliation(s)
| | - Ike Sari Astuti
- Department of Geography, Universitas Negeri Malang, Malang, 65145 Indonesia
| | - Purwanto Purwanto
- Department of Geography, Universitas Negeri Malang, Malang, 65145 Indonesia
| | - Ifan Deffinika
- Department of Geography, Universitas Negeri Malang, Malang, 65145 Indonesia
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