Article
Optics
Mani Priyadarshini, Jitendra Nath Acharyya, Sumeet Mahajan, G. Vijaya Prakash
Summary: Gold nanoparticles prepared by femtosecond laser ablation and wet-chemical citrate reduction synthesis were studied for optical nonlinearities, showing distinct characteristics in nonlinear absorption. The study also demonstrated the potential of laser-produced nanoparticles for optical limiting applications due to their strong nonlinear absorption properties.
OPTICS AND LASER TECHNOLOGY
(2021)
Article
Chemistry, Physical
Kiichirou Koyasu, Tatsuya Tsukuda
Summary: Gas-phase methods offer novel insights into the intrinsic geometric and electronic structures of chemically synthesized Au/Ag clusters, which cannot be obtained by conventional characterization methods. This provides new perspectives for building functional materials and studying size-dependent structures.
JOURNAL OF CHEMICAL PHYSICS
(2021)
Article
Engineering, Electrical & Electronic
B. J. Sarkar, A. Bandyopadhyay
Summary: The magnetic properties of nanocrystalline copper ferrite with narrow size distribution synthesized using co-precipitation technique were investigated. Various analytical methods were employed to analyze the microstructural, optical, and magnetic characteristics of the ferrite nanoparticles, revealing detailed insights into their properties and behavior.
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
(2021)
Article
Chemistry, Multidisciplinary
Wenjing Zhou, Rui Yang, Sujuan Yu, Chungang Yuan, Jingfu Liu
Summary: There has been a recent trend towards the green synthesis of nanoparticles, but there is limited research comparing the toxicity of biosynthesized nanoparticles and chemically synthesized nanoparticles. In this study, a green method for synthesizing gold nanoparticles was developed using an algal extract. The toxicity of these biosynthesized nanoparticles was compared to chemically synthesized nanoparticles using microalgae and a higher trophic level organism as models. The results showed that biosynthesized nanoparticles had lower toxicity and could potentially be used in biomedical and cancer therapy and diagnosis.
Article
Multidisciplinary Sciences
Chiya Yousef Rahimzadeh, Azeez Abdullah Barzinjy, Ahmed Salih Mohammed, Samir Mustafa Hamad
Summary: The usage of green synthesis method for producing nanoparticles has gained popularity in the scientific community. The method is favored for being environmentally-friendly and utilizing non-toxic materials. This study successfully synthesized nano-silica (SiO2) nanoparticles using Rhus coriaria L. extract and sodium metasilicate under reflux conditions. The green-synthesized SiO2 nanoparticles showed superior stability, enhanced thermal properties, and a larger surface area compared to chemically synthesized ones.
Article
Pharmacology & Pharmacy
Aashish Kumar Netam, Vikas Panka Bhargava, Rambir Singhz, Poonam Sharma
Summary: The study evaluated the physico-chemical characteristics of Swarna Bhasma manufactured by Shree Baidyanath Ayurved Bhawan Pvt. Ltd., revealing high gold content, moderate particle size, and irregular spherical morphology.
JOURNAL OF COMPLEMENTARY MEDICINE RESEARCH
(2021)
Article
Engineering, Electrical & Electronic
Abduelwhab B. Alwany, G. M. Youssef, Emran Eisa Saleh, Mohammed A. Algradee, Ali Alnakhlani, Belqees Hassan
Summary: In this study, ZnS nanoparticles (NPs) were used as host materials for Pb doping, and Pb-doped ZnS NPs with cubic structure were successfully prepared using the co-precipitation method. TEM observations showed that both undoped and 6.5% Pb-doped ZnS NPs had a spherical form with different average diameters. FTIR data indicated that the intensity of absorption peaks decreased with increasing Pb concentration. UV-visible absorption spectroscopy results revealed that Pb-doped ZnS NPs exhibited a strong quantum confinement effect. Furthermore, the prepared ZnS NPs with Pb-doped showed a greater ability to protect against nuclear radiation.
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
(2023)
Article
Multidisciplinary Sciences
Rasha A. Abo-Elmagd, Ragaa A. Hamouda, Mervat H. Hussein
Summary: This study investigated the phycotoxicity of OG-AgNPs on freshwater microalgae and revealed a significant inhibitory effect on cell growth and photosynthetic pigments. It also showed that OG-AgNPs have catalytic activity in reducing hydrogen peroxide, which could be useful in various domains such as medical and industrial processes.
SCIENTIFIC REPORTS
(2022)
Article
Engineering, Chemical
Wenping Xu, Shimiao Yao, Xuran Ji, Hairong Zhang, Xuefang Chen, Xinde Chen
Summary: This study systematically investigated the recovery of Au(III) from low-concentration HAuCl4 solutions using a self-synthesized dimethylamine-modified mesoporous resin (DMR). Experimental results showed that the DMR exhibited high adsorption capacity and recovery efficiency for Au(III) under specific conditions. The adsorption mechanism of Au(III) onto the DMR surface followed the Langmuir isotherm model and pseudo-first-order kinetics.
INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
(2022)
Article
Physics, Multidisciplinary
Sukhvir Singh, Manjri Singh, Manju Arora, Dinesh Singh, Surinder P. Singh
Summary: In this study, gold nanoparticles were synthesized and characterized as reference materials for calibrating electron microscopes. The stability of the synthesized nanoparticles' sizes was studied using UV-Visible spectrometer over a period of one year. TEM/HRTEM measurements were conducted at different magnifications in automated mode to ensure accurate particle size measurement.
INDIAN JOURNAL OF PURE & APPLIED PHYSICS
(2021)
Article
Optics
Baoshuo Yang, Yuan Ai, Xiaowei Liu
Summary: In this study, size-controlled Cu particles (1.5 μm, 500 nm, and 50 nm) were fabricated by one-step electrodeposition, and their optical and mechanical properties were investigated. The properties were found to be gradually enhanced with the decrease of particle size, with Cu particles of 50 nm showing the best performance.
Article
Electrochemistry
Shervin Foroughi, Mohsen Habibi, Muthukumaran Packirisamy
Summary: This study demonstrates the fabrication of elastomeric microcantilevers using SLA 3D printing technology, and the mechanical characteristics are determined by micromechanical tests, showing comparable stiffness to reported results.
JOURNAL OF THE ELECTROCHEMICAL SOCIETY
(2022)
Article
Multidisciplinary Sciences
Mohamed Yafia, Oriol Ymbern, Ayokunle O. Olanrewaju, Azim Parandakh, Ahmad Sohrabi Kashani, Johan Renault, Zijie Jin, Geunyong Kim, Andy Ng, David Juncker
Summary: This article introduces microfluidic chain reactions as a structured propagation of capillary flow events. Monolithic chips integrating microfluidic chain reactions are printed in three dimensions and powered by the free energy of a paper pump to autonomously execute liquid handling algorithms. Microfluidic chain reactions have wide-ranging applications in liquid handling and point-of-care diagnostics.
Article
Multidisciplinary Sciences
Mohsen Habibi, Shervin Foroughi, Vahid Karamzadeh, Muthukumaran Packirisamy
Summary: This study demonstrates a method of 3D printing using sonochemical reactions produced by focused ultrasound. By creating acoustic cavitation, high temperature and pressure hotspots with fast heating and cooling rates can be generated in highly localized cavitation regions. Complex structures with varying porosities and a feature size of 280 μm were successfully printed using this method, opening up new possibilities for additive manufacturing.
NATURE COMMUNICATIONS
(2022)
Review
Chemistry, Analytical
Duraichelvan Raju, Srinivas Bathini, Simona Badilescu, Anirban Ghosh, Muthukumaran Packirisamy
Summary: Extracellular vesicles (EVs) are communication organelles enclosed by a phospholipid bilayer, containing a myriad of compounds from origin cells and serving as a good source of biomarkers. Exosomes, a subset of EVs, hold significant importance in future medicine, but their practical applications are hindered by the lack of efficient isolation and detection techniques.
Article
Chemistry, Multidisciplinary
Mostapha Marzban, Ehsan Yazdanpanah Moghadam, Javad Dargahi, Muthukumaran Packirisamy
Summary: Microfluidic systems have attracted increasing attention due to their diverse applications, and soft lithography offers a safer and more affordable alternative to traditional fabrication techniques. This study presents a 3D multi-layer PDMS suspended microfluidics fabrication process using soft lithography, addressing bonding strength and trapped air-bubbles as main manufacturing issues. Through optimization of curing temperature and air-vent channel integration, these issues are effectively resolved. Experimental tests confirm the sensitivity of the suspended microfluidic system to different fluids and flow rates.
APPLIED SCIENCES-BASEL
(2022)
Article
Nanoscience & Nanotechnology
Kiran Kuruvinashetti, Muthukumaran Packirisamy
Summary: This study demonstrates the effectiveness of connecting microphotosynthetic power cells (mu PSCs) in series and parallel to enhance their power output. The results show that combinations of mu PSCs connected in series and parallel generate higher power densities and can be used to power low-power devices such as LEDs.
MICROSYSTEMS & NANOENGINEERING
(2022)
Editorial Material
Electrochemistry
Simona Badilescu, Muthukumaran Packirisamy
ELECTROCHEMICAL SOCIETY INTERFACE
(2022)
Article
Electrochemistry
Ayobami Elisha Oseyemi, Kiran Kuruvinashetti, Muthukumaran Packirisamy
Summary: Microphotosynthetic Power Cells (mu PSCs) have the potential to meet low-power application demand by leveraging the photosynthetic capabilities of autotrophs. However, internal losses associated with charge transfer continue to be a challenge. This study discusses the potential of boosting power density through device miniaturization.
JOURNAL OF THE ELECTROCHEMICAL SOCIETY
(2022)
Article
Engineering, Electrical & Electronic
Ayobami Elisha Oseyemi, Ion Stiharu, Muthukumaran Packirisamy
Summary: In this study, an innovative tapered polymer-based microchannelembedded microcantilever termed the 'T-SPMF3' is presented and computationally analyzed. By increasing the characteristic parameter of the model, the sensitivity of the biosensor is investigated relative to a series of parameter tweaks. Overall, the study shows how the sensitivity of the proposed model can be tuned to meet the demands of different bio-diagnostic applications.
MICROSYSTEM TECHNOLOGIES-MICRO-AND NANOSYSTEMS-INFORMATION STORAGE AND PROCESSING SYSTEMS
(2023)
Article
Chemistry, Analytical
Ehsan Yazdanpanah Moghadam, Nahum Sonenberg, Muthukumaran Packirisamy
Summary: This article investigates the migration behavior of microglia cells on different substrates using a microfluidic wound-healing chip. The results show that certain substrate types can promote cell migration, while others may have inhibitory effects.
Article
Chemistry, Multidisciplinary
Vahid Karamzadeh, Ahmad Sohrabi-Kashani, Molly Shen, David Juncker
Summary: This study introduces the digital manufacturing of functional microfluidic systems in the form of structurally encoded, self-powered capillaric circuits (CC) using new hydrophilic inks. Monolithic CCs are 3D printed with design innovations including circular cross-sections, embedded stop valves, and gyroid capillary pumps. Programmable liquid handling via retention burst valves and microfluidic chain reactions are shown and applied to an immunoassay.
ADVANCED MATERIALS
(2023)
Meeting Abstract
Cell & Tissue Engineering
V. Karamzadeh, A. Sohrabi Kashani, M. Shen, D. Juncker
TISSUE ENGINEERING PART A
(2022)
Article
Nanoscience & Nanotechnology
Ahmad Sohrabi Kashani, Kevin Larocque, Alisa Piekny, Muthukumaran Packirisamy
Summary: This study investigates the mechano-biological responses of human lung cancer cells to two different types of gold nanoparticles: nanostars and nanospheres. The results show that the morphology of the nanoparticles affects their spatial distribution in the cells, with nanospheres being more uniformly distributed. Gold nanospheres are also found to be more effective in modifying the mechanobiological properties of the cells, reducing their migratory ability and stiffness. These findings highlight the potential applications of gold nanoparticles in managing cell migration and emphasize the importance of mechanobiological responses in designing nanoparticles for cancer therapy.
ACS APPLIED BIO MATERIALS
(2022)
Article
Green & Sustainable Science & Technology
Kiran Kuruvinashetti, Shanmugasundaram Pakkiriswami, Muthukumaran Packirisamy
Summary: This study aims to enhance the power generation capability of microphotosynthetic power cells (mu PSC) by utilizing gold nanoparticles (Au NPs) to interact with photosynthetic microorganisms. The results show that internalized Au NPs can improve photosynthetic efficiency and enhance the power generation capability of mu PSC.
ADVANCED ENERGY AND SUSTAINABILITY RESEARCH
(2022)
