Article
Materials Science, Multidisciplinary
Madeeha Riaz, Hina Imtiaz, Murid Hussain, Alliya Qamar, Farooq Bashir, Tousif Hussain
Summary: Hardystonite (Ca2ZnSi2O7) was prepared using a non-stoichiometric composition by the solid-state method at 1200 C. The results showed that it has a suitable optical band gap, dielectric constant, resistivity, and AC conductivity for sensor, bolometer, and optoelectronic applications.
Article
Engineering, Civil
Xuhui Zhang, Tao Tan, Dingbang Hu, Mi Li, Laikuang Lin, Shun Lin
Summary: In this study, a rock cutting numerical model of the TBM hob was built using the SPG method to investigate the influence of hob penetration and hob spacing on the dynamic cutting process. The results showed a good simulation of the sequential cutting process and identified the optimum hob spacing for higher cutting efficiency.
PERIODICA POLYTECHNICA-CIVIL ENGINEERING
(2022)
Article
Materials Science, Ceramics
Manal A. Mahdy, I. K. El Zawawi, Sayed H. Kenawy, Esmat M. A. Hamzawy, Gehan T. El-Bassyouni
Summary: Partial substitution of ZnO for CaO in wollastonite was achieved through wet precipitation. The study revealed that the ZnO/CaO replacement significantly influenced the structure, porosity, mechanical, and optical properties of the ceramic. Addition of ZnO increased the density and reduced the porosity of wollastonite, resulting in improved mechanical behavior and bioactivity.
CERAMICS INTERNATIONAL
(2022)
Article
Chemistry, Inorganic & Nuclear
Alice M. Bumstead, Michael F. Thorne, Adam F. Sapnik, Celia Castillo-Blas, Giulio Lampronti, Thomas D. Bennett
Summary: This study demonstrates the sensitivity of melting behavior in zeolitic imidazolate frameworks (ZIFs) towards linker chemistry, with small variations capable of eliciting significant changes in melting temperature. It provides a promising strategy for tuning the melting behavior of ZIFs.
DALTON TRANSACTIONS
(2022)
Article
Materials Science, Multidisciplinary
Kangjia Hu, Shenhou Li, Zhangyuan Zhao, Xuewei Liang, Yangyang Cai, Yong Zhang
Summary: The study presents a strategy to improve the chemical stability of glass/oxide/metal interfaces by obtaining a layered structure oxide film through pre-oxidation of AISI 304 metal housings. Results show that Zn2+ diffuses into the spinel oxide layer during the sealing process, leading to the formation of a Zn-rich layer that acts as a barrier to ionic diffusion, improving the chemical stability of the glass/oxide/metal interface.
MATERIALS CHARACTERIZATION
(2021)
Article
Chemistry, Multidisciplinary
D. Q. Pham, S. Gangadoo, Z. Lu, C. C. Berndt, E. T. Newsom, H. Zreiqat, V. K. Truong, A. S. M. Ang
Summary: The strontium-doped hardystonite coating demonstrates superior antibacterial properties and mechanical properties compared to the commercial hydroxyapatite coating, making it a promising candidate for bioceramic coating applications in orthopedic implants.
MATERIALS TODAY CHEMISTRY
(2022)
Article
Chemistry, Inorganic & Nuclear
Qianrui Zhao, Zhiwen Tang, Yuede Pan, Jingjing Han, Jinbiao Yang, Yongqiang Guo, Xiangqian Lai, Zhewei Yang, Gang Li
Summary: The solubility product constant (K-sp) is an important concept in inorganic chemistry that determines the solubility of ionic compounds. K-sp guided precipitation reactions are useful for obtaining solid materials or removing unwanted ions from solutions. The K-sp gap between two solids triggers precipitation transformation reactions, and this phenomenon can be applied to prepare transition metal sulfides from corresponding hydroxides in sodium sulfide solutions.
INORGANIC CHEMISTRY FRONTIERS
(2023)
Article
Engineering, Manufacturing
Feiyun Cong, Qihao Zhou, Li Chen, Feng Lin, Xiaojie Lin, Yi Zhou
Summary: The evaluation of hob wear during gear machining is crucial for optimizing tool change strategy and improving machining efficiency. This study proposes a monitoring method, called 'Drift Prediction of Gamma Distribution Parameter (DP-GDP)', based on time domain impulses statistical distribution. The method establishes a vibration signal model of the hob considering periodic cutting force and random impact excitation, discusses vibration parameters, and models the relationship between hob wear stage and occurrence of impulses. It also proposes a wear feature extraction method based on statistical parameters of random impulses, and successfully predicts the hob's wear process in industrial tests.
CIRP JOURNAL OF MANUFACTURING SCIENCE AND TECHNOLOGY
(2023)
Article
Engineering, Mechanical
Chin-Lung Huang, Guan-Shing Lee, Li-Sheng Chang
Summary: The paper proposes a new solution for sharpening helical flute hobs by simplifying the wheel profile to a circular arc, making it easier to obtain the wheel profile through numerical control function. Machine settings for a form grinding machine were calculated, allowing the sharpening of helical flute hobs. Numerical examples evaluated the differences between the proposed simplified circular arc wheel profile and the theoretical one.
MECHANISM AND MACHINE THEORY
(2021)
Article
Engineering, Biomedical
Pegah Dehghanpour, Rahmatollah Emadi, Hamidreza Salimijazi
Summary: Bone tissue engineering (BTE) is an important method for the regeneration of bone defects. In this study, a new composite scaffold made of polycaprolactone (PCL) and hardystonite (HT) nanopowders was developed, showing significant improvements in mechanical properties and cell viability. The scaffold also demonstrated the ability to stimulate the development of hydroxyapatite (HA).
JOURNAL OF THE MECHANICAL BEHAVIOR OF BIOMEDICAL MATERIALS
(2023)
Article
Physics, Applied
Xin Shi, Xinyue Liu, Xianshuo Cao, Xiaoning Cheng, Xihong Lu
Summary: An aqueous Zn-Mn battery with high-rate and high-voltage has been proposed using oxygen functionalized carbon nanotubes substrate, addressing the low energy and power densities issue in Zn-based batteries. The battery exhibits superior capacity retention, outstanding power density, and energy density, providing significant insights for the development of high energy and power density aqueous batteries.
APPLIED PHYSICS LETTERS
(2022)
Article
Physics, Multidisciplinary
W. A. Drouni, N. Baki, F. Chiker, Y. A. Khachai, H. Khachai, R. Miloua, R. Khenata, R. Ahmed, A. Bouhemadou, S. Bin Omran
Summary: This article presents a theoretical study on the properties of the Dy2Be2GeO7 complex oxide, including its structural, thermodynamic, electronic, optical, and magnetic characteristics. The study uses computational methods and density functional theory, and provides valuable insights into the physical properties of this complex oxide.
EUROPEAN PHYSICAL JOURNAL PLUS
(2023)
Article
Materials Science, Multidisciplinary
A. R. Eivani, F. Tabatabaei, A. R. Khavandi, M. Tajabadi, M. Mehdizade, H. R. Jafarian, J. Zhou
Summary: A composite material based on the WE43 magnesium alloy containing nano-sized hardystonite ceramic particles was processed by friction stir processing (FSP), resulting in improved compressive strength, strain-at-failure, and corrosion resistance. The corrosion mechanism of the nanocomposite involves a combination of uniform corrosion and localized pitting corrosion, similar to the base metal, but with significantly reduced corrosion rate.Enhanced properties were attributed to grain refinement, fragmentation, and redistribution of second-phase particles in the magnesium matrix during FSP.
JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
(2021)
Article
Chemistry, Multidisciplinary
R. M. R. Lingandhinne, D. Mudusu, K. R. Nandanapalli, K. P. J. Reddy, S. Lee
Summary: Zinc oxide nanorods were developed on stainless steel and glass substrates using spray pyrolysis and chemical bath deposition techniques. After exposure to shock waves, the nanorods exhibited sustainable surface morphology and crystalline quality, attributed to their slantly overlapped morphology and high melting temperature.
MATERIALS TODAY CHEMISTRY
(2022)
Article
Engineering, Electrical & Electronic
Subimal Majee, Mikael C. F. Karlsson, Anurak Sawatdee, Mohammad Yusuf Mulla, Naveed ul Hassan Alvi, Valerio Beni, David Nilsson
Summary: This study presents an innovative method for fabricating inkjet-printed tracks using Zn nanoparticle ink and low-temperature in situ chemical sintering of curing ink. Chemical curing allows for the use of flexible substrates that cannot withstand traditional high thermal budgets. A specific acid concentration in the curing ink is found to be crucial in determining the electrical properties of the printed Zn nanoparticles, resulting in highly conductive and mechanically flexible features. Additionally, a touch sensor circuit utilizing all-Zn printed conductive tracks is demonstrated.
NPJ FLEXIBLE ELECTRONICS
(2021)
Article
Chemistry, Physical
Gurvinder Singh, Hesamodin Jami, Pooria Lesani, Shubhayan Bhattacharya, Yogambha Ramaswamy, Prem B. Bisht, Hala Zreiqat
Summary: Understanding surface processes is crucial in producing reproducibly stellated or branched gold nanoparticles with precise control. By tuning reaction variables, such as reduction rate and molecules/ions density, various shapes of thermodynamically stabilized and kinetic gold nanoparticles can be obtained. High temperature stability and self-assembly abilities of these nanoparticles have been studied, showing potential for advanced applications.
Article
Engineering, Biomedical
Ellen T. Newsom, Ameneh Sadeghpoura, Ali Entezari, Joan Lace U. Vinzonsa, Ralph E. Stanfordc, Mohammad Mirkhalafb, Daniel Chone, Colin R. Dunstanb, Hala Zreiqat
Summary: We have developed a bioceramic material, Sr-HT-Gahnite, which has the potential to be a fusion device material that mimics the biological and mechanical performance of natural bone. In a study conducted on sheep, it has been shown that this material is safe for systemic use over a period of 26 weeks, indicating the systemic safety of the Sr-HT-Gahnite fusion device.
ACTA BIOMATERIALIA
(2023)
Article
Chemistry, Physical
Vijay Kumar Sagar, Soumyodeep Dey, Shubhayan Bhattacharya, Pooria Lesani, Yogambha Ramaswamy, Gurvinder Singh, Hala Zreiqat, Prem Ballabh Bisht
Summary: In this study, long wavelength emitting nitrogen and sulfur co-doped graphene quantum dots were synthesized via hydrothermal route, exhibiting high quantum yield and excitation-wavelength independent photoluminescence. The interaction of these quantum dots with a dye rhodamine B showed evidence of Förster resonance energy transfer (FRET), along with the capability of two-photon absorption at near infrared wavelength for deep-tissue imaging up to 175 µm.
JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY
(2022)
Article
Materials Science, Biomaterials
Christina Marie Viray, Benjamin van Magill, Hala Zreiqat, Yogambha Ramaswamy
Summary: Bioprinting is a promising fabrication technique for developing biologically functional tissue constructs. This study developed a novel bioresin compatible with visible-light photoinitiator system, enabling high-resolution bioprinting. The experiments demonstrated the potential of this material system for developing physiologically relevant in vitro hydrogel scaffolds with feature resolutions comparable to individual human cells.
ACS BIOMATERIALS SCIENCE & ENGINEERING
(2022)
Review
Engineering, Biomedical
Mohammad Mirkhalaf, Yinghui Men, Rui Wang, Young No, Hala Zreiqat
Summary: 3D printed bone scaffolds have the potential to replace autografts and allografts due to their ability to customize the scaffolds' properties and the unlimited supply. Progress has been made in 3D printing bone grafts, but challenges remain in replicating the mechanical and biological functions of native bones. This review outlines the recent progress and challenges in engineering synthetic bone scaffolds and provides suggestions for overcoming these challenges.
ACTA BIOMATERIALIA
(2023)
Article
Engineering, Environmental
Pooria Lesani, Gurvinder Singh, Zufu Lu, Mohammad Mirkhalaf, Elizabeth J. New, Hala Zreiqat
Summary: We report the design and development of a two-photon ratiometric carbon dot-based nanoprobe for real-time monitoring of intracellular pH. The nanoprobe exhibits sensitivity across a wide pH range, remarkable thermal and photo stability, as well as two-photon near-infrared excitation capability.
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Nanoscience & Nanotechnology
Alessio Stefani, Boris T. Kuhlmey, Justin Digweed, Benjamin Davies, Zizhen Ding, Hala Zreiqat, Mohammad Mirkhalaf, Alessandro Tuniz
Summary: Terahertz technology is a growing field in sensing and telecommunications. Researchers have developed photonic terahertz light cages (THzLCs) using 3D-printing technology, which guide light within a central hollow core. They demonstrate the design flexibility of THzLCs and characterize the propagation and bend losses in straight and curved waveguides. Additionally, they discuss appropriate figures of merit for evaluating the performance of light cage guidance.
Article
Materials Science, Biomaterials
Iman Roohani, Young Jung No, Betty Zuo, Sue D. Xiang, Zufu Lu, Hongwei Liu, Magdalena Plebanski, Hala Zreiqat
Summary: This study introduces a method to synthesize hollow submicron particles of beta-Tricalcium phosphate (β-TCP) at low temperatures and evaluates their cytocompatibility with human osteoblasts, adipose-derived stem cells, and antigen-presenting cells. The results demonstrate that h β-TCP significantly enhances osteogenic differentiation of stem cells, providing opportunities for developing new β-TCP-based biomaterials.
ACS BIOMATERIALS SCIENCE & ENGINEERING
(2022)
Article
Chemistry, Multidisciplinary
G. Singh, T. Agrawal, P. Lesani, P. B. Bisht, H. Zreiqat
Summary: This study introduces a simplified seed-mediated method to control the surface structure and stability of concave cubic gold nanoparticles by manipulating different halides and their concentrations, achieving precise control over the size, morphology, and plasmonic properties of the nanoparticles.
MATERIALS TODAY CHEMISTRY
(2022)
Article
Geriatrics & Gerontology
ZuFu Lu, Liting Jiang, Pooria Lesani, WenJie Zhang, Ning Li, Danyang Luo, Yusi Li, Yulin Ye, Ji Bian, Guocheng Wang, Colin R. Dunstan, XinQuan Jiang, Hala Zreiqat
Summary: This study shows that nicotinamide mononucleotide (NMN) could partially reverse the negative effects of tumor necrosis factor-alpha (TNF-α) on osteoblasts, including inducing senescence, reducing differentiation ability, and affecting mitochondrial function. In addition, NMN can protect cells from aging damage by increasing mitophagy activity.
JOURNALS OF GERONTOLOGY SERIES A-BIOLOGICAL SCIENCES AND MEDICAL SCIENCES
(2023)
Editorial Material
Engineering, Biomedical
Khoon S. Lim, Hala Zreiqat, Debby Gawlitta
ACTA BIOMATERIALIA
(2023)
Article
Biochemistry & Molecular Biology
Kai Peter Sommer, Adrian Krolinski, Mohammad Mirkhalaf, Hala Zreiqat, Oliver Friedrich, Martin Vielreicher
Summary: The goal of bone tissue engineering is to build artificial bone tissue that closely resembles human bone and supports its integration into the body. This study used two types of 3D-printed scaffolds to seed and differentiate osteoblastic cells, and tested different assays and imaging methods to monitor these processes.
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2023)
Article
Engineering, Biomedical
Natalie P. Holmes, Iman Roohani, Ali Entezari, Paul Guagliardo, Mohammad Mirkhalaf, Zufu Lu, Yi-Sheng Chen, Limei Yang, Colin R. Dunstan, Hala Zreiqat, Julie M. Cairney
Summary: This study reports the atomic-scale composition of in vivo bone formed in a bioceramic scaffold after 12-month implantation in a large bone defect in sheep tibia. The composition of the newly formed bone tissue differs from that of mature cortical bone tissue, and elements from the degrading bioceramic implant, particularly aluminium, are present in both the newly formed bone and the original mature cortical bone tissue. Atom probe tomography and nanoSIMS mapping were used to confirm the release and distribution of these trace elements. The findings provide important insights for the design and performance of biomedical implants.
ACTA BIOMATERIALIA
(2023)
Review
Materials Science, Multidisciplinary
Iman Roohani, Ellen Newsom, Hala Zreiqat
Summary: Bioceramics are highly sought after for their biocompatibility and bone regenerative properties, making them a multibillion-dollar industry in orthopaedic and dental implants. However, traditional manufacturing methods have limitations in creating complex geometries customized for specific bone defects. Vat-photopolymerization 3D printing has emerged as a precise and high-resolution technique for fabricating complex bioceramic parts with strong, ultralight, energy-absorbing, and tough materials. Despite their potential, regulatory and reimbursement obstacles hinder the clinical translation of 3D-printed bioceramic implants. This review analyzes recent advances in vat-photopolymerization printing of bioceramics, highlighting technical challenges and the potential of nanoscale printing to enhance implant mechanical and biological functions. The review also provides recommendations for regulatory frameworks, envisioning a future with successful clinical translation of advanced 3D architectures.
INTERNATIONAL MATERIALS REVIEWS
(2023)
Article
Chemistry, Multidisciplinary
Peter L. H. Newman, Queenie Yip, Pierre Osteil, Tim A. Anderson, Jane Q. J. Sun, Daryan Kempe, Mate Biro, Jae-Won Shin, Patrick P. L. Tam, Hala Zreiqat
Summary: Multicellular patterning in stem-cell-derived tissue models is often achieved through self-organizing activities triggered by external morphogenetic stimuli. However, these tissue models exhibit stochastic behavior, leading to limited reproducibility and non-physiological structures. To improve multicellular patterning, researchers have developed a method for creating complex tissue microenvironments with programmable mechano-chemical cues. These cues, including peptides, proteins, morphogens, and defined stiffness, spatially guide tissue patterning processes, such as mechanosensing and cell differentiation. By designing niches, the authors successfully engineered bone-fat assembly and germ layer tissues. Microstructured cell niches enable the spatial programming of tissue patterning processes, enhancing the organization and composition of engineered tissues.
