Article
Biochemical Research Methods
Swarnagowri Vaidyanathan, Kumuditha M. Weerakoon-Ratnayake, Franklin Uba, Bo Hu, David Kaufman, Junseo Choi, Sunggook Park, Steven A. Soper
Summary: The study presents a novel method for single-molecule DNA damage detection using a nanofluidic chip, which accurately reads AP sites while stretching DNA. This approach tackles the challenge of obtaining large amounts of DNA from millions of cells and addresses the growing importance of liquid biopsies as a source of biomarkers in vitro diagnostics.
Article
Chemistry, Analytical
Bernhard Mueller, Philipp Sulzer, Manuel Walch, Helene Zirath, Tomas Buryska, Mario Rothbauer, Peter Ertl, Torsten Mayr
Summary: We proposed a microfluidic cell culture device with integrated optical chemical sensors for monitoring dissolved oxygen, pH levels, respiration, and acidification rates. A thermoplastic polymer chip material enabled the measurement of respiration rates, not feasible with PDMS-based microfluidics. This measurement method was successfully demonstrated in monitoring the metabolic response of human lung carcinoma cells to a specific drug exposure.
SENSORS AND ACTUATORS B-CHEMICAL
(2021)
Article
Water Resources
Xiang Huang, David L. Rudolph
Summary: This study presents a hybrid analytical-numerical scheme for solving one-dimensional soil temperature profiles during freezing or thawing conditions. The proposed scheme divides the soil into multiple layers and solves multiple moving-boundary problems to obtain temperature profiles. Experimental results showed good agreement with finite element numerical solution. The proposed multi-layer method adapted well to changes in soil properties and accurately predicted freezing front dynamics.
ADVANCES IN WATER RESOURCES
(2022)
Article
Engineering, Mechanical
Deep Chatterjee, Nirmalendu Biswas, Nirmal K. Manna, Sandip Sarkar
Summary: This study aims to understand the impact of the position of discrete heaters and coolers on a cylindrical thermal system. By altering the positions and controlling parameters, the heat transfer and entropy production are systematically investigated. The study reveals that the cross-wise heating-cooling arrangement is the most effective option for enhanced heat transfer.
INTERNATIONAL JOURNAL OF MECHANICAL SCIENCES
(2023)
Article
Polymer Science
Svenja Pohl, Oliver Janka, Ekkehard Fueglein, Guido Kickelbick
Summary: Organosilsesquioxane hybrid materials can be converted into reversibly melting gels by applying hydrolysis and condensation reactions. The formation of ladder-type silsesquioxanes with a defect-rich structure in the first step explains the thermoplastic behavior of the materials. Heating above a certain temperature leads to further condensation reactions and structural reorientation, resulting in hard and cross-linked hybrid glasses with high thermal stability and optical transparency above 400 degrees C.
Article
Engineering, Environmental
Woongki Lee, Sooyong Lee, Hwajeong Kim, Youngkyoo Kim
Summary: Organic thermoelectric devices (OTEDs) utilizing hybrid composites of PEDOT:PSS and ZnO particles show enhanced performance, improved electrical conductivity, and increased power output. Specific interactions between PEDOT:PSS and ZnO result in faster thermoelectric responses in the composite material.
CHEMICAL ENGINEERING JOURNAL
(2021)
Article
Construction & Building Technology
Siddhartha Arya, Ritesh Kumar, Shakti Chauhan, Bhushan U. Kelkar
Summary: This study aimed to prepare thermoplastic based hybrid wood veneer composite panels using bamboo fiber reinforced thermoplastic (BPC) and Melia dubia wood veneers. The effect of polymer type (PP, HDPE, PBAT) and bamboo fiber content on the properties of the plywood was investigated. Plywood prepared with BPC showed superior mechanical properties, with improved flexural strength and interfacial adhesion between BPC and wood veneers.
CONSTRUCTION AND BUILDING MATERIALS
(2023)
Article
Green & Sustainable Science & Technology
Ting An Lin, Jia-Horng Lin, Limin Bao
Summary: This study aims to investigate the synergistic effect between thermoplastic materials and discuss the compatibilized effect, particularly caused by polypropylene grafted maleic anhydride (MA). The addition of MA improves the thermal stability of the PP/TTPU blend, with an average increase of 5 degrees C in the third thermal degradation temperature. The SEM images demonstrate that the incorporation of TTPU enhances the toughness of the surface, leading to greater interfacial compatibility and better adhesion between PP and TTPU.
JOURNAL OF CLEANER PRODUCTION
(2021)
Article
Chemistry, Physical
Jamal Seyyed Monfared Zanjani, Ismet Baran
Summary: The research investigates the interphase properties of co-bonded acrylonitrile butadiene styrene thermoplastic to unsaturated polyester thermoset under different processing conditions. The study experimentally examines the effects of processing temperature on cure kinetics and interdiffusion kinetics, as well as develops models to predict interphase thickness and microstructure for various process conditions. It is found that processing temperature significantly influences the interdiffusion process, interphase thickness, microstructure, and mechanical performance.
Article
Green & Sustainable Science & Technology
David Hartung, Stefanie Celevics, Patrick Hirsch, Ivonne Jahn, Lovis Kneisel, Kay Koelzig, Andre Matthes, Holger Cebulla
Summary: This study presents a novel process assembly for producing a natural fiber-reinforced thermoplastic tape. The integration of a drawframe and a double belt press modified the film-stacking process to create unidirectional tapes (UD tapes) with natural fiber preforms and thermoplastic films. The use of a commingled sliver containing natural reinforcing and polymer matrix fibers further improved the productivity and mechanical performance of the UD tapes compared to film-stacking-based composites, with a 10% higher flexural modulus and 34% higher flexural strength.
Article
Mechanics
Gabriel Prosofsky de Araujo, Mauricio Vicente Donadon, Gigliola Salerno, Rita de Cassia Mendonca Sales
Summary: This experimental study investigated the mechanical behavior of PAEK composite laminates reinforced with carbon fibers under high strain rates. The results showed a significant influence of temperature on damage aspects, leading to the proposal of a new failure criterion. Analysis of the crystallinity of the PAEK matrix was conducted, showing no evidence of variation induced by high strain rate tests.
COMPOSITE STRUCTURES
(2021)
Article
Polymer Science
Yanyan Zhu, Changhang Huang, Liangshun Zhang, David Andelman, Xingkun Man
Summary: The kinetic paths of structural evolution and formation of block copolymer (BCP) particles were investigated using dynamic self-consistent field theory (DSCFT). The study revealed that the self-assembly process of BCP in a poor solvent leads to the formation of striped ellipsoids, onion-like particles, and double-spiral lamellar particles. The shape transition between onion-like particles and striped ellipsoidal ones can be reversible by controlling the temperature and solvent selectivity. Additionally, changing the intermediate bi-continuous structure into a layered one is crucial for the formation of striped ellipsoidal particles.
MACROMOLECULAR RAPID COMMUNICATIONS
(2023)
Article
Chemistry, Multidisciplinary
Yueyang Gao, Di Bao, Minghang Zhang, Yexiang Cui, Fei Xu, Xiaosong Shen, Yanji Zhu, Huaiyuan Wang
Summary: Due to the increasing power density of miniaturized and high-frequency electronic devices, flexible thermal interface materials (TIMs) with EMI shielding property are urgently needed. Carbon-based TIMs with ultrahigh thermal conductivity have garnered attention, but face production restrictions due to technical difficulties. A unique double self-assembly strategy inspired by millefeuille cakes has been demonstrated for fabricating TIMs with superior EMI shielding performance, achieving a balance between thermal conduction and EMI shielding effectiveness.
Article
Chemistry, Analytical
Mathias Busek, Steffen Novik, Aleksandra Aizenshtadt, Mikel Amirola-Martinez, Thomas Combriat, Stefan Grunzner, Stefan Krauss
Summary: This study explores the use of TPE films thermally bonded to PMMA sheets in building multilayered microfluidic devices with integrated pneumatic micro-pumps to overcome the limitations of PDMS in drug testing. By optimizing manufacturing technology and specific processes, a low-cost microfluidic device is successfully developed with integrated pneumatic micro-pumps, and its performance and stability are thoroughly tested.
Article
Materials Science, Multidisciplinary
Marcus Glaser, Sebastian Matthes, Joerg Hildebrand, Jean Pierre Bergmann, Peter Schaaf
Summary: Multi material pairings, such as metal-plastic hybrids, are increasingly important in various industries. However, substituting metals with plastics presents numerous challenges due to the combination of dissimilar materials. This study investigates the joining process between semi-crystalline polyamide 6 and austenitic stainless steel X5CrNi18-10 using reactive Al/Ni multilayers. The focus is on evaluating the joint strength and understanding the failure behavior and binding mechanisms at the fracture interface under tensile load.
MATERIALS & DESIGN
(2023)
Article
Chemistry, Analytical
Colleen E. O'Neil, Scott Taylor, Kumuditha Ratnayake, Swathi Pullagurla, Varshni Singh, Steven A. Soper
Article
Chemistry, Analytical
Kumuditha M. Weerakoon-Ratnayake, Franklin I. Uba, Nyote J. Oliver-Calixte, Steven A. Soper
ANALYTICAL CHEMISTRY
(2016)
Review
Biochemical Research Methods
Kumuditha M. Weerakoon-Ratnayake, Colleen E. O'Neil, Franklin I. Uba, Steven A. Soper
Article
Chemistry, Analytical
Colleen O'Neil, Charuni A. Amarasekara, Kumuditha M. Weerakoon-Ratnayake, Bethany Gross, Zheng Jia, Varshni Singh, Sunggook Park, Steven A. Soper
ANALYTICA CHIMICA ACTA
(2018)
Article
Chemistry, Multidisciplinary
Ting Yang, Na Li, Xiaoyan Wang, Jian Zhai, Bo Hu, Mingli Chen, Jianhua Wang
CHINESE CHEMICAL LETTERS
(2020)
Article
Cell Biology
Kumuditha M. Weerakoon-Ratnayake, Swarnagowri Vaidyanathan, Nicholas Larkey, Kavya Dathathreya, Mengjia Hu, Jilsha Jose, Shalee Mog, Keith August, Andrew K. Godwin, Mateusz L. Hupert, Malgorzata A. Witek, Steven A. Soper
Article
Materials Science, Ceramics
Mingfei Liu, Franklin Uba, Ying Liu
JOURNAL OF THE AMERICAN CERAMIC SOCIETY
(2020)
Article
Chemistry, Analytical
Lu Yang, Bo Hu, Ai-Hua Liu, Yang Zhang
Article
Chemistry, Analytical
Bo Hu, Yong Ma, Ning Wang
MICROCHEMICAL JOURNAL
(2020)
Article
Biochemical Research Methods
Swarnagowri Vaidyanathan, Kumuditha M. Weerakoon-Ratnayake, Franklin Uba, Bo Hu, David Kaufman, Junseo Choi, Sunggook Park, Steven A. Soper
Summary: The study presents a novel method for single-molecule DNA damage detection using a nanofluidic chip, which accurately reads AP sites while stretching DNA. This approach tackles the challenge of obtaining large amounts of DNA from millions of cells and addresses the growing importance of liquid biopsies as a source of biomarkers in vitro diagnostics.
Article
Nanoscience & Nanotechnology
Yang Zhang, Lu Yang, Wentong Li, Chengcheng Gai, Bo Hu, Aihua Liu
ACS APPLIED BIO MATERIALS
(2020)
Article
Biochemical Research Methods
Bo Hu, Jing Guo, Ying Xu, Hua Wei, Guojie Zhao, Yifu Guan
ANALYTICAL AND BIOANALYTICAL CHEMISTRY
(2017)