Andri Hardiansyah

National Research and Innovation Agency

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Fredina Destyorini

National Research and Innovation Agency

Ming‐Chien Yang

National Taiwan University of Science and Technology

Yuyun Irmawati

Bandung Institute of Technology

Chih‐Yu Kuo

National Taipei University of Technology

Rike Yudianti

National Research and Innovation Agency

Ni Luh Wulan Septiani

Bandung Institute of Technology

Elsy Rahimi Chaldun

National Research and Innovation Agency

Ting‐Yu Liu

Ming Chi University of Technology

Brian Yuliarto

Bandung Institute of Technology

Ting‐Yu Liu

Chongqing Normal University

Cooperative Institutions

National Research and Innovation Agency

Indonesian Institute of Sciences

Bandung Institute of Technology

National Nuclear Energy Agency of Indonesia

Ming Chi University of Technology

University of Indonesia

National Taiwan University

National Research, Development and Innovation Office

National Yang Ming Chiao Tung University

National Taiwan University of Science and Technology

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Characterization of electrospun polyvinylidene fluoride-loaded iron sand-based Fe₃O₄ nanoparticles

Advances in Natural Sciences Nanoscience and Nanotechnology (2023)

Witha Berlian Kesuma Putri Zakiya Nibras Sausan Nining Sumawati Asri Eko Arief Setiadi Andri Hardiansyah

Abstract Iron sand-based Fe 3 O 4 nanoparticles–polyvinylidene fluoride (PVDF) nanofibers were processed inside an electrospinning system at room temperature. The incorporation of Fe 3 O 4 nanoparticles into the PVDF matrix decreases the diameter of the fibers. The presence of the Fe 3 O 4 crystalline phase in the electrospun PVDF-Fe 3 O 4 fiber indicates the unchanged Fe 3 O 4 crystal structure. The surface morphology of the samples was altered considerably after the electrospinning and heating processes. Infrared spectroscopy identification confirmed the PVDF α to β -phase transformation in the PVDF and PVDF-Fe 3 O 4 fibers. The thermal analysis detected a higher residual mass of the PVDF-Fe 3 O 4 sample than that of the pure PVDF at high temperatures. Through the hysteresis characteristics, a ferromagnetic behaviour was observed for all samples. The efficient and low-cost fabrication of the PVDF-Fe 3 O 4 fibers could be considered practical for diverse applications of nanotechnology.

Polyvinylidene fluoride

Electrospinning

10.1088/2043-6262/acbc70

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Citations (3)

Additional file 1: of Core-shell of FePt@SiO2-Au magnetic nanoparticles for rapid SERS detection

Andri Hardiansyah An-Yu Chen Hung-Liang Liao Ming‐Chien Yang Tingyu Liu

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Irradiation time dependent of the ZnO/GO composite formation on the photodegradation of Rhodamine B

IOP Conference Series Earth and Environmental Science (2023)

Ezra Fransiska Sri Herwahyu Krismastuti Osi Arutanti Nurhani Aryana Andri Hardiansyah

Abstract Rhodamine B (Rh B) is one of the dyes used in the dyeing of paints, acrylic, and fabrics as well as biological products. A high concentration of Rh B is highly toxic and dangerous to living organisms when directly discharged into water. Therefore, in this study, the degradation of Rh B in water by zinc oxide/graphene oxide (ZnO/GO) composite was investigated. The zinc oxide (ZnO) was recovered from zinc ash, waste from galvanization industries, by acid leaching process using hydrochloric acid (HCl), while the graphene oxide (GO) was synthesized by modified Hummers method. The nanocomposite of ZnO/GO was synthesized using microwave irradiation and characterized by means of Field Emission Scanning Electron Microscope (FE-SEM), X-Ray Diffraction (XRD), and Fourier Transform Infrared (FTIR). The effect of irradiation time during ZnO/GO nanocomposite formation on the photocatalysis activity of the ZnO/GO in degrading Rhodamine B under UV rays was studied. The irradiation time was varied for 6, 8, and 10 minutes. The characterization results confirm that ZnO, GO, and ZnO/GO have been successfully synthesized. The ZnO/GO nanocomposite was also responsive to UV rays and able to degrade Rh B, as one of the examples of water pollutants. The highest degradation of Rhodamine B is achieved by the ZnO/GO nanocomposite prepared at 10 minutes of irradiation. The results of this study demonstrate that microwave irradiation time affects the ability of the nanocomposite to degrade Rhodamine B.

Rhodamine B

Photodegradation

Rhodamine

10.1088/1755-1315/1201/1/012083

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Crystal structure analysis of double perovskite (Bi,Sr)(Co,Fe)O_6-δ for intermediate temperature solid oxide fuel cells (IT-SOFCs): A preliminary study

Journal of Physics Conference Series (2019)

Arham Dahlang Tahir Fredina Destyorini Andri Hardiansyah Nanik Indayaningsih

Double perovskite-type BixSr2-xCo0.5Fe1.5O6-δ (BiSCF) oxides with various A-site (x = 0.6, 0.7, 0.8, designated as BiSCF06, BiSCF07, BiSCF08, respectively) have been synthesized by a solid-state reaction technique, and investigated on their structure properties of perovskite powder for application of intermediate-temperature solid oxide fuel cells (IT-SOFCs) purpose with related to the calcination temperatures at 950, 1000 and 1050°C. The crystal structure of the BiSCF powder was analyzed by X-ray diffractometer (XRD), and determined by Rietveld refinement. The results show that BiSCF07 powder which calcined at 950 ° C shows the best structure of cubic perovskite with space group Pm-3m and a lowest impurity at room temperature indicated structure stability and offers a higher mobility of oxygen vacancies. Based on this result, BiSCF07 powder has a potential to be developed as cathode for IT-SOFCs applications.

Rietveld Refinement

Diffractometer

10.1088/1742-6596/1191/1/012018

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Magnetically polymeric nanocarriers for targeting delivery of curcumin and hyperthermia treatments toward cancer cells

Journal of Polymer Science Part A Polymer Chemistry (2016)

Chih‐Yu Kuo Ting‐Yu Liu Andri Hardiansyah Wen‐Yen Chiu

ABSTRACT Magnetically polymeric nanocarriers, Cur‐FA‐SAMN, were designed and synthesized for targeting, therapeutic treatments to cancer cells. Amine‐group immobilized iron oxides, Fe 3 O 4 ‐NH 2 , were attached on the surface of self‐assembled tri‐block copolymer, poly[(acrylic acid)‐block‐( N ‐isopropylacrylamide)‐block‐(acrylic acid)] synthesized via reversible addition‐fragmentation chain‐transfer polymerization. For the purpose of targeting effect, folic acid was grafted on the surface of Fe 3 O 4 ‐NH 2 attached nanoparticles. The nanocarriers were characterized by transmission electron microscopy, Fourier transform infrared spectroscopy, vibrating sample magnetometer, and UV‐Vis spectral analysis. Therefore, a hydrophobic anti‐cancer drug, curcumin, gained water dispersity, and stable storage via encapsulating into and on the magnetically polymeric nanocarriers, and the release behaviors were studied in vitro, with and without high frequency magnetic field. Biocompatibility and cytotoxicity of inherent and curcumin‐loaded nanocarriers were investigated by MTT assay. Results displayed that our nanocarriers have no cytotoxicity while curcumin‐loaded nanocarriers offered significant death to MCF‐7, human breast camcer cells. Intracellular‐uptake experiments demonstrated tremendous uptake and the destroying effect to MCF‐7 cells, most of the cancer cells were killed and the surviving ones were surrounded by the curcumin‐loaded nanocarriers. According to the aforementioned characteristics, these magnetically polymeric nanocarriers will be able to apply as a potential device for practical therapy. © 2016 Wiley Periodicals, Inc. J. Polym. Sci., Part A: Polym. Chem. 2016 , 54 , 2706–2713

Nanocarriers

Acrylic acid

Biocompatibility

MTT assay

10.1002/pola.28150

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Magnetic Graphene-Based Nanosheets with Pluronic F127-Chitosan Biopolymers Encapsulated α-Mangosteen Drugs for Breast Cancer Cells Therapy

Polymers (2022)

Andri Hardiansyah Ahmad Randy Rizna Triana Dewi Marissa Angelina Nurfina Yudasari

In this study, multifunctional chitosan-pluronic F127 with magnetic reduced graphene oxide (MRGO) nanocomposites were developed through the immobilization of chitosan and an amphiphilic polymer (pluronic F127) onto the MRGO. Physicochemical characterizations and in-vitro cytotoxicity of nanocomposites were investigated through field emission scanning electron microscopy (FESEM), X-ray diffraction (XRD), Fourier-transform infrared (FTIR) spectroscopy, particle size analysis, vibrating sample magnetometer, Raman spectroscopy and resazurin-based in-vitro cytotoxicity assay. FESEM observation shows that the magnetic nanoparticles could tethered on the surface of MRGO, promoting the magnetic properties of the nanocomposites. FTIR identification analysis revealed that the chitosan/pluronic F127 were successfully immobilized on the surface of MRGO. Furthermore, α-mangosteen, as a model of natural drug compound, was successfully encapsulated onto the chitosan/pluronic F127@MRGO nanocomposites. According to in-vitro cytotoxicity assay, α-mangosteen-loaded chitosan/pluronic F127@MRGO nanocomposites could significantly reduce the proliferation of human breast cancer (MFC-7) cells. Eventually, it would be anticipated that the novel α-mangosteen-loaded chitosan/pluronic F127@MRGO nanocomposites could be promoted as a new potential material for magnetically targeting and killing cancer cells.

10.3390/polym14153163

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One-pot synthesis of CoFe alloy supported on N-doped carbon as Pt-free oxygen reduction catalysts

AIP conference proceedings (2022)

Yuyun Irmawati Edwin M. Mauludi Fredina Destyorini Andri Hardiansyah Haryo Satriya Oktaviano

An efficient and inexpensive oxygen reduction catalyst to substitute platinum-based catalyst materials is the key to future development in energy storage and conversion. In this work, bimetal CoFe alloy decorated N-doped carbon was successfully synthesized from commercial acetylene black, glycine, and transition metal salt precursors. Four different samples were prepared using directly pyrolyzing the precursors at a temperature of 700 °C for 2h in nitrogen atmosphere without any further treatments. The catalyst activity was characterized using cyclic voltammetry in an acid electrolyte (0.1 M HClO4), while structure analysis was done using X-ray diffraction (XRD) and Raman spectroscopy. The results show that the bimetal CoFe catalyst has the highest onset potential (0.90 V vs. RHE) than those for other samples. Samples with monometallic Fe or Co result onset potential at about 0.8 V (vs. RHE), while the lowest onset potential is obtained from N-doped carbon (0.52 V vs. RHE). Positively shift in the onset potential is likely due to the synergetic effect from CoFe particles and N-doped carbon substrate.

Bimetal

Carbon fibers

10.1063/5.0106430

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Contributors

Elsevier eBooks (2022)

Hooman Abbasi Ahmed Abdala Raouf AliAkbari Marcelo Antunes Mohammad Arefi

10.1016/b978-0-12-823789-2.09992-1

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Reduced graphene oxide nanosheets decorated with core-shell of Fe3O4-Au nanoparticles for rapid SERS detection and hyperthermia treatment of bacteria

Spectrochimica Acta Part A Molecular and Biomolecular Spectroscopy (2022)

Ming‐Chien Yang Andri Hardiansyah Yu‐Wei Cheng Hung-Liang Liao Kuan-Syun Wang

Zeta potential

Biomolecule

10.1016/j.saa.2022.121578

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Citations (23)

Core-shell of FePt@SiO2-Au magnetic nanoparticles for rapid SERS detection

Nanoscale Research Letters (2015)

Andri Hardiansyah An-Yu Chen Hung-Liang Liao Ming‐Chien Yang Ting‐Yu Liu

In this study, multifunctional hybrid nanoparticles composed of iron platinum (FePt), silica (SiO2), and gold nanoparticles (AuNPs) had been developed for surface-enhanced Raman scattering (SERS) application. Core-shell structure of SiO2 and FePt nanoparticles (FePt@SiO2) was fabricated through sol-gel process and then immobilized gold nanoparticles onto the surface of FePt@SiO2, which displays huge Raman enhancement effect and magnetic separation capability. The resulting core-shell nanoparticles were subject to evaluation by transmission electron microscopy (TEM), Energy-dispersive X-ray spectroscopy (EDX), zeta potential measurement, and X-ray photoelectron spectroscopy (XPS). TEM observation revealed that the particle size of resultant nanoparticles displayed spherical structure with the size ~30 nm and further proved the successful immobilization of Au onto the surface of FePt@SiO2. Zeta potential measurement exhibited the successful reaction between FePt@SiO2 and AuNPs. The rapid SERS detection and identification of small biomolecules (adenine) and microorganisms (gram-positive bacteria, Staphylococcus aureus) was conducted through Raman spectroscopy. In summary, the novel core-shell magnetic nanoparticles could be anticipated to apply in the rapid magnetic separation under the external magnetic field due to the core of the FePt superparamagnetic nanoparticles and label-free SERS bio-sensing of biomolecules and bacteria.

Zeta potential

Superparamagnetism

Surface-Enhanced Raman Spectroscopy

Biomolecule

Nanochemistry

10.1186/s11671-015-1111-0

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Citations (24)