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| 1 | Mechanical and corrosion properties of partially degradable bone screws made of pure iron and stainless steel 316L by friction welding显示文摘This paper reports a series of in vitro, ex vivo and in vivo mechanical and corrosion studies of pin and screw prototype made of friction welded pure iron and 316 L type stainless steel aiming to evaluate the applicability of the partially removable bone screws. Results showed that the pin possesses bending, tensile and torsional strengths of1706±147, 666±7 and 0.34±0.03 MPa, respectively. The pin degraded at an average weight loss rate of 17.15×10-5 g cm-2 day-1 and released Fe ions at an average concentration of 2.38 ppm. Plastic deformation induced by torsion increased the corrosion rate of the pin from 0.0014 to 0.0137 mm year-1.The maximum pull-out load of the screw prototypes was3800 N with a calculated failure strength by shear load equal to22.2 k N which is higher than the strength of the cortical bone.Detailed analysis of the rat's blood cells during 60 days of the pin implantation indicated a normal response with low neutrophils/lymphocytes ratio of 0.3-0.5. Iron ion concentration in the rat's blood slightly increased from 55 to 61 ppm without affecting the tissue recovering and healing phase. Histological evaluation confirmed the presence of macrophage cells as a normal response to the released iron particles around the iron section of the pin. | Ahmad Kafrawi Nasution Mokhamad Fakhrul Ulum Mohammed Rafiq Abdul Kadir Hendra Hermawan | 2018 | Science China Materials2018，61，4： | 3 |
| 2 | Advanced Strategies to Improve Performances of Molybdenum-Based Gas Sensors显示文摘Molybdenum-based materials have been intensively investigated for high-performance gas sensor applications.Particularly,molybdenum oxides and dichalcogenides nanostructures have been widely examined due to their tunable structural and physicochemical properties that meet sensor requirements.These materials have good durability,are naturally abundant,low cost,and have facile preparation,allowing scalable fabrication to fulfill the growing demand of susceptible sensor devices.Significant advances have been made in recent decades to design and fabricate various molybdenum oxides-and dichalcogenides-based sensing materials,though it is still challenging to achieve high performances.Therefore,many experimental and theoretical investigations have been devoted to exploring suitable approaches which can significantly enhance their gas sensing properties.This review comprehensively examines recent advanced strategies to improve the nanostructured molybdenum-based material performance for detecting harmful pollutants,dangerous gases,or even exhaled breath monitoring.The summary and future challenges to advance their gas sensing performances will also be presented. | Angga Hermawan Ni Luh Wulan Septiani Ardiansyah Taufik Brian Yuliarto Suyatman Shu Yin | 2021 | Nano-Micro Letters2021，13，12： | 3 |
| 3 | Developments in metallic biodegradable stents显示文摘 | H. Hermawan D. Dubé D. Mantovani | 2009 | Acta Biomaterialia2009，，5： | 2 |
| 4 | A Study of Vacuum-Drying Characteristics of Sugi Boxed-Heart Timber显示文摘 | Andi Hermawan Noboru Fujimoto Hiroki Sakagami | 2013 | Drying Technology2013，，5： | 2 |
| 5 | Potential bioactive coating system for high-performance absorbable magnesium bone implants显示文摘Magnesium alloys are considered the most suitable absorbable metals for bone fracture fixation implants.The main challenge in absorbable magnesium alloys is their high corrosion/degradation rate that needs to be controlled.Various coatings have been applied to magnesium alloys to slow down their corrosion rates to match their corrosion rate to the regeneration rate of the bone fracture.In this review,a bioactive coating is proposed to slow down the corrosion rate of magnesium alloys and accelerate the bone fracture healing process.The main aim of the bioactive coatings is to enhance the direct attachment of living tissues and thereby facilitate osteoconduction.Hydroxyapatite,collagen type I,recombinant human bone morphogenetic proteins 2,simvastatin,zoledronate,and strontium are six bioactive agents that show high potential for developing a bioactive coating system for high-performance absorbable magnesium bone implants.In addition to coating,the substrate itself can be made bioactive by alloying magnesium with calcium,zinc,copper,and manganese that were found to promote bone regeneration. | Murni Nazira Sarian Nida Iqbal Pedram Sotoudehbagha Mehdi Razavi Qamar Uddin Ahmed Cortino Sukotjo Hendra Hermawan | 2022 | Bioactive Materials2022，7，6： | 2 |
| 6 | Morphology control of aluminum nitride(AlN)for a novel high-temperature hydrogen sensor显示文摘Hydrogen is a promising renewable energy source for fossil-free transportation and electrical energy generation.However,leaking hydrogen in high-temperature production processes can cause an explosion,which endangers production workers and surrounding areas.To detect leaks early,we used a sensor material based on a wide bandgap aluminum nitride(AlN)that can withstand a high-temperature environment.Three unique AlN morphologies(rod-like,nest-like,and hexagonal plate-like)were synthesized by a direct nitridation method at 1400℃usingγ-AlOOH as a precursor.The gas-sensing performance shows that a hexagonal plate-like morphology exhibited p-type sensing behavior and showed good repeatability as well as the highest response(S=58.7)toward a 750 ppm leak of H2 gas at high temperature(500°C)compared with the rod-like and nest-like morphologies.Furthermore,the hexagonal plate-like morphology showed fast response and recovery times of 40 and 82 s,respectively.The surface facet of the hexagonal morphology of AlN might be energetically favorable for gas adsorption–desorption for enhanced hydrogen detection. | Angga Hermawan Yusuke Asakura Shu Yin | 2020 | International Journal of Minerals,Metallurgy and Materials2020，27，11： | 1 |
| 7 | Degradable metallic biomate- rials:design and development of Fe-Mn alloys for stents 显示文摘 | Hermawan H Dub6 D Mantovani D | 2010 | J Biomed Mater Res A2010，93，1： | 1 |
| 8 | Design of a pseudo-physiological test bench specific to the development of biodegradable metallic biomaterials 显示文摘 | LEVESQUE J HERMAWAN H DUBE D MANTOVANI D | 2008 | Acta Biomaterialia2008，4，2： | 1 |
| 9 | Design of a pseudo-physiological test bench specific to the development of biodegradable metallic biomaterials显示文摘 | Levesque J Hermawan H Dube D | 2008 | Acta Biomaterialia2008，4，2： | 1 |
| 10 | Oviposition deterrent activity of andrographolide against the diamondback moth (DBM), Plutella xylostella (Lepidoptera: Yponomeutidae) 显示文摘 | HERMAWAN W TSUKUDA R NAKAJIMA S | 1998 | Applied Entomology and Zoology1998，33，2： | 1 |
| 11 | Theoretical analysis of soil reaction on a lug of the movable lug cage wheel显示文摘 | Wawan Hermawan Minoru Yamazaki | 2000 | Journal of Terramechanics2000，37，2： | 1 |
| 12 | Influence of crude extracts from a tropi cal plant, Andrographis paniculma (Achanthaceae), on suppress ion of feeding by the diamondback moth, Plutella xylostella (Lepidoptera: Yponomeutidae) and oviposition by the azuli bean weevil Call osobruchus chi nensis (Coleoptera: Bruchidae) 显示文摘 | Hermawan W Tsukuda R Fujisaki K Kobayashi A Nakasuji F | 1993 | Applid Entomology and Zoology1993，28，2： | 1 |
| 13 | Chiral separation of econazole using micellar electrokic chromatography with hydroxypropyl- 3'-cyclodextrin 显示文摘 | Hermawan D Ibrahim W A W Sanagi M M | 2010 | J Pharm Biomed Anal2010，53，5： | 1 |
| 14 | Degradable metallic biomaterials:design and development of Fe-Mn alloys for stents显示文摘 | Hermawan H Dube D Mantovani D | 2010 | J Biomed Mater Res A2010，93，1： | 1 |
| 15 | Developments in me- tallic biodegradable stents 显示文摘 | Hermawan H Dube D Mantovani D | 2010 | Acta Biomater2010，6，5： | 1 |
| 16 | Developments in metallic biodegradable stents显示文摘 | Hermawan H Dube D Mantovani D | 2010 | Acta Biomater2010，6，5： | 1 |
| 17 | Antifeedant and antioviposition activities of fractions of extract from a tropical plant,Andrographis paniculata(Acanthaceae)against the diamondback moth,Plutella xylostella(Lepidoptera:Yponomeutidae)显示文摘 | Hermawan W Kajiyama S Tsukuda R | 1994 | J Appl Entom Zool1994，29，4： | 1 |
| 18 | New technology for manufacturing high-strength cement-bonded particleboard using supercritical carbon dioxide显示文摘 | Dede Hermawan Toshimitsu Hata Kenji Umemura Shuichi Kawai Shin-ichi Kaneko Yasuo Kuroki | 2000 | Journal of Wood Science2000，，1： | 1 |
| 19 | Developments in metallic biodegradable stents显示文摘 | H. Hermawan D. Dubé D. Mantovani | 2009 | Acta Biomaterialia2009，，5： | 1 |
| 20 | Assessing the hiocompatibility of degradable metallic materials: State-of- the-art and focus on the potential of genetic regulation显示文摘 | Purnama A Hermawan H Couet J | 2010 | Acta Biomater2010，6，5： | 1 |
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