Article
Materials Science, Multidisciplinary
Zhongyuan Li, Jinlong He, Ashwanth Subramanian, Nikhil Tiwale, Keith J. Dusoe, Chang -Yong Nam, Ying Li, Seok-Woo Lee
Summary: In this study, core-shell SU-8 nanocomposites fabricated via vapor-phase infiltration of nanoscale amorphous aluminum oxides showed an ultrahigh modulus of resilience much higher than most high-strength materials. The unique microstructural features, including the low aspect ratio of aluminum oxide nanoparticles, the larger particle size compared to the free volume size, and the thin interconnecting links within the particles, contribute to the exceptional combination of low specific Young's modulus and high specific yield strength, resulting in a specific modulus of resilience about ten times higher than materials with similar yield strength. The vapor-phase infiltration method demonstrated excellent capabilities in producing polymer nanocomposites that can absorb and release large amounts of elastic strain energy.
MATERIALS & DESIGN
(2023)
Article
Materials Science, Multidisciplinary
Yuchen Shao, Yuan'an Zhao, Hao Ma, Cheng Li, Dawei Li, Jianda Shao
Summary: The study shows that solvent content has an impact on the feature size of polymerization in multi-photon polymerization. Adjusting the solvent content can refine the polymer size, as low solvent content restricts the mobility of photon-induced H+ cations, leading to a reduction in polymer diameter.
Article
Computer Science, Information Systems
M. B. Jaafar, M. B. Othman, M. M. I. Megat Hasnan, H. Haroon
Summary: This study introduces the capability of the AgSiN/SU-8 layer on the silver-based SPR structure for water content detection in stingless bee honey. The results show that the AgSiN/SU-8 layer can protect the silver surface from erosion and minimize the formation of silver oxide.
Article
Chemistry, Physical
George H. Major, Sean C. Chapman, Jeffrey T. Chapman, Joshua I. Wheeler, Shiladitya Chatterjee, Cody V. Cushman, Daniel H. Ess, Matthew R. Linford
Summary: SU-8 is an important, epoxy-based, negative photoresist that can create high aspect ratio features. Spectroscopic ellipsometry (SE) is a nondestructive analytical technique that can be performed in the open air. In this study, different models were used to fit the SE measurement data of SU-8, with the B-spline model showing the lowest mean squared error. Additionally, time-dependent density functional theory (TD-DFT) modeling was found to be consistent with the measured optical function of SU-8.
SURFACE AND INTERFACE ANALYSIS
(2021)
Proceedings Paper
Optics
Abdollah Pil-Ali, Mohammad Soltani, Sahar Adnani, Muhammed Kayaharman, Mahla Poudineh, Bo Cui, Karim S. Karim
Summary: X-ray absorption gratings are crucial for coded-aperture and Talbot-Lau x-ray phase-contrast imaging techniques. The quality of imaging depends heavily on the gratings' quality. SU-8, a durable photoresist, is commonly used in MEMS fabrication. However, ensuring adhesion between SU-8 molds and gold thin films is a challenge due to poor adhesion and internal stress. This study explores using a metallic-silane-based nanometer-thin film to improve the adhesion quality between SU-8 and gold thin films.
MEDICAL IMAGING 2022: PHYSICS OF MEDICAL IMAGING
(2022)
Article
Biochemical Research Methods
Linfeng Xu, Hun Lee, Mariana Vanderlei Brasil Pinheiro, Phil Schneider, Deekshitha Jetta, Kwang W. Oh
Review
Biochemical Research Methods
Linfeng Xu, Hun Lee, Deekshitha Jetta, Kwang W. Oh
Article
Chemistry, Analytical
Hun Lee, Domin Koh, Linfeng Xu, Sindhu Row, Stelios T. Andreadis, Kwang W. Oh
Article
Biochemical Research Methods
Hun Lee, Linfeng Xu, Kwang W. Oh
Article
Biochemical Research Methods
Linfeng Xu, Hun Lee, Rajagopal Panchapakesan, Kwang W. Oh
Article
Biochemical Research Methods
Jing Xu, Byungwook Ahn, Hun Lee, Linfeng Xu, Kangsun Lee, Rajagopal Panchapakesan, Kwang W. Oh
Article
Nanoscience & Nanotechnology
Hun Lee, Linfeng Xu, Byungwook Ahn, Kangsun Lee, Kwang W. Oh
MICROFLUIDICS AND NANOFLUIDICS
(2012)
Article
Nanoscience & Nanotechnology
Linfeng Xu, Hun Lee, Kwang W. Oh
MICROFLUIDICS AND NANOFLUIDICS
(2014)
Review
Chemistry, Analytical
Hun Lee, Linfeng Xu, Domin Koh, Nikhila Nyayapathi, Kwang W. Oh
Article
Biochemical Research Methods
Bin Yang, Xingye Chen, Yina Wang, Siyu Feng, Veronica Pessino, Nico Stuurman, Nathan H. Cho, Karen W. Cheng, Samuel J. Lord, Linfeng Xu, Dan Xie, R. Dyche Mullins, Manuel D. Leonetti, Bo Huang
Review
Biochemical Research Methods
Linfeng Xu, Anyang Wang, Xiangpeng Li, Kwang W. Oh
Article
Chemistry, Multidisciplinary
Linfeng Xu, Xiangpeng Li, Wenzong Li, Kai-chun Chang, Hyunjun Yang, Nannan Tao, Pengfei Zhang, Emory M. Payne, Cyrus Modavi, Jacqueline Humphries, Chia-Wei Lu, Adam R. Abate
Summary: This paper describes a simple method to fabricate substrates patterned with micrometer-scale wells, which can enhance the sensitivity of laser desorption ionization mass spectrometry and concentrate cells and beads for cell-based assays.
ADVANCED MATERIALS
(2022)
Article
Multidisciplinary Sciences
Linfeng Xu, Kai-Chun Chang, Emory M. Payne, Cyrus Modavi, Leqian Liu, Claire M. Palmer, Nannan Tao, Hal S. Alper, Robert T. Kennedy, Dale S. Cornett, Adam R. Abate
Summary: Enzymes have diverse activities that surpass chemical catalysts, but engineering them for novel or enhanced activity is hampered by limited technologies for sensing product formation. This study presents a general and scalable approach that uses host cell metabolism as a biosensor to infer product formation, enabling the discovery of unexpected products and mapping the effects of mutagenesis through mass spectrometry. Additionally, a screening method combining microfluidics and mass spectrometry is reported for mapping catalysis, characterizing product range, and recovering sequences of variants with desired activities.
NATURE COMMUNICATIONS
(2021)
Article
Multidisciplinary Sciences
Justin L. Madrigal, Nathan G. Schoepp, Linfeng Xu, Codian S. Powell, Cyrille L. Delley, Christian A. Siltanen, Jay Danao, Maithreyan Srinivasan, Russell H. Cole, Adam R. Abate
Summary: Cell-cell interactions play a crucial role in biological systems, but current methods for studying these interactions are limited in scalability. This study presents a novel approach for cell interaction profiling using high-throughput droplet microfluidics, allowing for accurate grouping and characterization of cell interactions on a large scale.
PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA
(2022)
Proceedings Paper
Engineering, Biomedical
Hun Lee, Linfeng Xu, Kwang W. Oh
2014 36TH ANNUAL INTERNATIONAL CONFERENCE OF THE IEEE ENGINEERING IN MEDICINE AND BIOLOGY SOCIETY (EMBC)
(2014)