Article
Mechanics
Mohammad Reza Khosravani, Tamara Reinicke
Summary: This study investigates the technical efficiency of a Multilayer Perforated Sound Absorber (MPSA) made of 3D-printed perforated panels using vat photopolymerization method, and evaluates its sound absorption performance using an impedance tube. Results show that the perforation ratio and air gap significantly affect the resonant frequency of the maximum sound absorption coefficient.3D-printed perforated panels demonstrate high performance in sound absorption.
EUROPEAN JOURNAL OF MECHANICS A-SOLIDS
(2021)
Article
Physics, Applied
Shengnan Li, Liuyang Zhang, Xuefeng Chen
Summary: The study combines 3D printing technology with magnetron sputtering to realize additive manufacturing of terahertz metamaterials. Experimental results show that the 3D printed absorber has a near-unity narrow-band absorption peak at 0.8THz, demonstrating potential for bio-sensing applications.
JOURNAL OF APPLIED PHYSICS
(2021)
Article
Optics
Xinyu Li, Lanjun Guo, Cheng Gong, Weiwei Liu
Summary: Design, fabrication and testing of a 3D printed terahertz all-dielectric metamaterial broadband absorber is presented. It is made of periodic resonant cells array on a flexible and transparent substrate of transparent polylactic acid. The absorber exhibits characteristics of polarization insensitivity and wide incident angle. Through analysis and simulation, a theory of grating modes and waveguide resonance modes superposition is proposed to explain its broadband absorption mechanism. Experimental results show that the absorber achieves high absorption rates of more than 80% in the frequency range of 0.31 THz-1.5 THz, with absorbance reaching 99.8% at 0.48 THz. The flexibility of 3D printing allows for easy modification of the absorber's characteristics by adjusting the size and shape of the unit cell.
OPTICS COMMUNICATIONS
(2023)
Article
Nanoscience & Nanotechnology
Yaru Wang, Ruyue Su, Jingyi Chen, Wenqing Wang, Xueqin Zhang, Hao Xu, Rujie He
Summary: In this study, a novel flexible multistage honeycomb structure absorber was designed inspired by a biological ultrablack butterfly scale nanostructure. The absorber achieved full band absorption at 75-110 GHz and demonstrated excellent electromagnetic wave absorption performance. Additionally, it exhibited superior flexibility, recoverability, and lightweight features.
ACS APPLIED MATERIALS & INTERFACES
(2023)
Article
Biophysics
He Cheng, Langlang Yi, Jianduo Wu, Guoqian Li, Gang Zhao, Zhixiang Xiao, Bo Hu, Lei Zhao, Jie Tian
Summary: A portable 3D-printed paper cartridge was developed for fast sample preconcentration and direct drugs quantitative detection in biofluids using a portable Raman spectrometer. The cartridge contained a paper tip with silver nanowires for preconcentration and SERS measurement, as well as a 3D-printed cartridge to improve detection. The cost of the cartridge was only one dollar. This technology allowed for quantitative detection of anticancer drugs in bovine serum or artificial urine in a quick and efficient manner.
BIOSENSORS & BIOELECTRONICS
(2021)
Article
Materials Science, Multidisciplinary
Netrapal Singh, Hafsa Siddiqui, Satendra Kumar, Manoj Goswami, Arvind Kumar, Tarun Sharda, Surender Kumar, N. Sathish, A. K. Srivastava
Summary: This study focuses on the quick detection of pharmaceutical drugs using novel meniscus confined electrochemical additive manufacturing (ECAM) printed silver nanoparticle substrate for localized surface plasmon resonance (LSPR) Raman. The electro-deposited nanoparticle substrate showed enhanced Raman signals, with up to four times enhancement observed in the LSPR Raman spectra.
Article
Materials Science, Multidisciplinary
Guangsheng Deng, Hanxiao Sun, Kun Lv, Jun Yang, Zhiping Yin, Baihong Chi
Summary: The study introduces a multiband absorber fabricated from stereo frequency selective structures (FSSs), which can absorb pentaband electromagnetic waves at normal incidence and exhibit angle-dependent multiband absorption at large incident angles for different polarizations. The complex structure is fabricated using MHMJM technology, showcasing great potential for constructing stereo FSSs with unique characteristics.
PHYSICA STATUS SOLIDI A-APPLICATIONS AND MATERIALS SCIENCE
(2021)
Article
Nanoscience & Nanotechnology
Daryl W. Yee, Steven W. Hetts, Julia R. Greer
Summary: Developing a device to accurately localize chemotherapy to target organs can reduce harmful side effects, and the stable DNA coating on 3D-printed materials improves the capture of chemotherapeutic agents, representing a significant advancement towards clinical application for enhancing chemotherapy treatment.
ACS APPLIED MATERIALS & INTERFACES
(2021)
Article
Engineering, Environmental
Wentao Dang, Yuanyuan Jin, Ke Yi, Enguo Ju, Chenya Zhuo, Hongyan Wei, Xingqiao Wen, Yu Wang, Mingqiang Li, Yu Tao
Summary: This study constructed multifunctional scaffolds using 3D printing technology, which showed excellent photothermal response under near-infrared laser irradiation due to the surficial hemin particles. The scaffolds effectively killed osteosarcoma cells in vitro and suppressed tumor growth in vivo through the combination of photothermal therapy and chemotherapy, indicating high clinical potential for precision medicine in tumor-induced bone defect management.
CHEMICAL ENGINEERING JOURNAL
(2021)
Article
Engineering, Electrical & Electronic
Chaoqun Xiang, Yisheng Guan, Haifei Zhu, Shangcan Lin, Yaowei Song
Summary: This paper presents flexible electroadhesion pads that are 3D printed and have potential applications in the grippers of soft robots, indicating a wide range of possibilities.
SENSORS AND ACTUATORS A-PHYSICAL
(2022)
Article
Optics
T. Otsuka, S. Adachi, M. Hattori, Y. Sakurai, O. Tajima
Summary: Researchers established a method for producing radio absorptive materials using a 3D-printed mold, allowing for a wide range of absorptive materials to be used. They found that adding a specific type of carbon fiber yielded the best performance, with a reflectance at 77 K estimated at 0.01%-3% over a frequency range of 20-300 GHz.
Article
Nanoscience & Nanotechnology
Wentao Dang, Ke Yi, Enguo Ju, Yuanyuan Jin, Yanteng Xu, Haixia Wang, Wei-Chih Chen, Kun Wang, Yu Wang, Yu Tao, Mingqiang Li
Summary: A multifunctional local implantation platform was developed for synergistic photothermal therapy and chemotherapy treatment of osteosarcoma. The content of TiN and DOX in the scaffolds can be flexibly adjusted, providing both therapeutic effects and mechanical support for bone tissue. The scaffolds have the potential to be a universal platform for loading different therapeutic agents.
ACS APPLIED MATERIALS & INTERFACES
(2021)
Review
Chemistry, Multidisciplinary
Ning Wang, Huixin Shi, Shude Yang
Summary: This article reviews the formulation selection and structure design of 3D printed oral solid dosage form, providing more ideas for improving drug release and solubility through scientific and extensive formulation selection and sophisticated structural design.
JOURNAL OF CONTROLLED RELEASE
(2022)
Article
Biochemistry & Molecular Biology
Xiaohui Zhang, Haofei Huang, Xin Lang, Ziyan Chen, Huajing Zeng, Yaowen Chang, Yingying Nie
Summary: A 3D-printed porous scaffold capable of absorbing chemotherapy drugs, such as doxorubicin, has been developed to reduce the toxic side effects of chemotherapy drugs and improve the life quality of patients.
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
(2023)
Article
Engineering, Electrical & Electronic
Guangsheng Deng, Wenqing Chen, Zhenchun Yu, Fei Cai, Jun Yang, Zhiping Yin
Summary: This study proposes an ultra-broadband dielectric-resonator-based microwave absorber with a water substrate and demonstrates through simulations and experiments that it achieves high-efficiency broadband absorption and wide incident-angle stability. The design has potential applications in the fields of electromagnetic shielding and stealth technology.
JOURNAL OF ELECTRONIC MATERIALS
(2022)
Article
Polymer Science
Neel J. Shah, Sajjad Dadashi-Silab, Michael D. Galluzzo, Saheli Chakraborty, Whitney S. Loo, Krzysztof Matyjaszewski, Nitash P. Balsara
Summary: The study investigated the impact of salt addition on a diblock copolymer system with a negative Flory-Huggins interaction parameter, chi. It was found that ordered phases only appear under specific conditions, as predicted by ionic self-consistent field theory.
Article
Polymer Science
Chao Fang, Whitney S. Loo, Rui Wang
Summary: This study quantifies the salt activity coefficient and polymer chain statistics of PEO/LiTFSI mixture at experimentally relevant salt concentrations using molecular dynamics simulations. Near the critical salt concentration, a small plateau in the dependence of salt activity coefficient on salt concentration is observed and the dependence of polymer chain size on salt concentration exhibits a reversal from contraction to expansion, in agreement with experimental observations.
Article
Engineering, Chemical
Xi Jiang, Jing Sun, Ronald N. Zuckermann, Nitash P. Balsara
Summary: The morphological changes of phosphonate polypeptoid electrolyte membranes were characterized in hydrated and dry states using cryogenic transmission electron microscopy and cryogenic electron tomography. The different lengths of the thin films absorbed varying amounts of water, resulting in different vesicle formations and lamellar phases. The changes in domain size reflected changes in chain conformations and water saturation levels.
POLYMER ENGINEERING AND SCIENCE
(2021)
Article
Nanoscience & Nanotechnology
Vijay D. Veeraraghavan, Louise Frenck, Jacqueline A. Maslyn, Whitney S. Loo, Dilworth Y. Parkinson, Nitash P. Balsara
Summary: The study utilized hard X-ray microtomography to investigate the electrodeposition of metallic lithium in a rigid block copolymer electrolyte, and quantified the growth behavior of lithium protrusions based on their simple ellipsoidal globule geometry.
ACS APPLIED MATERIALS & INTERFACES
(2021)
Article
Polymer Science
Whitney S. Loo, Chao Fang, Nitash P. Balsara, Rui Wang
Summary: This study conducted a quantitative analysis of WAXS profiles for PEO/LiTFSI mixtures at different salt concentrations, revealing abnormal scattering signatures and using molecular dynamics simulations to uncover the molecular origins of these features. While there was qualitative agreement between experimental and simulated results, quantitative discrepancies were resolved by introducing a charge rescaling factor. The simulations with charge rescaling predicted the formation of anion-rich clusters at higher salt concentrations than observed from experimental data, providing insights into short-range correlations between ions that affect clustering and ion-transport properties.
Article
Materials Science, Multidisciplinary
Xi Jiang, Sunting Xuan, Ronald N. Zuckermann, Robert M. Glaeser, Kenneth H. Downing, Nitash P. Balsara
Summary: The introduction of a novel composite holey gold support aims to prevent cryo-crinkling and reduce beam-induced motion of soft specimens, building on a previously introduced all-gold support. This two-step fabrication method includes transferring a holey gold film on top of a molybdenum grid and then transferring a continuous thin carbon film onto the holey gold film. The resulting Au/Mo grid shows excellent performance with tilted specimens and can provide high-resolution information of crystalline membranes beyond 1.5 angstrom.
MICROSCOPY AND MICROANALYSIS
(2021)
Review
Materials Science, Multidisciplinary
Xi Jiang, Nitash P. Balsara
Summary: Electron microscopy has been essential in characterizing polymers, with recent developments allowing for atomic resolution imaging of polymer crystals and providing a comprehensive understanding of strategies towards high-resolution imaging of radiation-sensitive polymer materials at different length scales.
ACS APPLIED POLYMER MATERIALS
(2021)
Article
Polymer Science
Lorena S. Grundy, Michael D. Galluzzo, Whitney S. Loo, Anthony Y. Fong, Nitash P. Balsara, Christopher J. Takacs
Summary: Block copolymer electrolytes with microphase separation can be used in lithium metal batteries. In this study, we investigated the morphology of a block copolymer electrolyte composed of polystyrene-block-poly(ethylene oxide) and lithium bis-(trifluoromethanesulfonyl)imide. The electrolyte showed a hexagonally packed cylindrical morphology at low salt concentrations and a body-centered cubic spherical morphology at high salt concentrations. During polarization, the cell potential increases rapidly when the salt concentration at the negative electrode approaches the concentration at the BCC/HEX boundary, indicating a phase transition.
Article
Nanoscience & Nanotechnology
Boyce S. Chang, Whitney S. Loo, Beihang Yu, Scott Dhuey, Lei Wan, Paul F. Nealey, Ricardo Ruiz
Summary: We report a method for directed self-assembly of block copolymers using polymer inks that interpenetrate with existing polymer brushes. By selecting appropriate polymer inks, self-registered chemical contrast patterns can be generated at the same frequency as block copolymer domains. This method allows for a higher tolerance to dimensional and chemical imperfections in the guiding patterns.
ACS APPLIED MATERIALS & INTERFACES
(2020)
Article
Chemistry, Physical
Hongbo Feng, Moshe Dolejsi, Ning Zhu, Soonmin Yim, Whitney Loo, Peiyuan Ma, Chun Zhou, Gordon S. W. Craig, Wen Chen, Lei Wan, Ricardo Ruiz, Juan J. de Pablo, Stuart J. Rowan, Paul F. Nealey
Summary: This paper presents a high-throughput synthesis and characterization platform for the discovery and optimization of block copolymers (BCPs) for lithographic patterning. By synthesizing a library of BCPs covering a large parameter space, researchers are able to identify BCP chemistries that satisfy the design rules.
Article
Polymer Science
Whitney S. Loo, Hongbo Feng, Thomas J. Ferron, Ricardo Ruiz, Daniel F. Sunday, Paul F. Nealey
Summary: This study experimentally measured the extent of mixing and segregation strength of a series of lamellar A-b-(B-r-C) block copolymers. The researchers proposed using the extent of mixing to evaluate the thermodynamic parameters of block copolymers.
Article
Polymer Science
Hongbo Feng, Ludwig Schneider, Whitney Loo, Gordon S. W. Craig, Christopher Eom, Zhongyang Wang, Ricardo Ruiz, Juan J. de Pablo, Stuart J. Rowan, Paul F. Nealey
Summary: We investigated the effects of structural isomerism on the properties of block copolymers (BCPs) using experiments and molecular dynamics simulations. By synthesizing structural isomeric BCPs and measuring their domain periodicity, we found that the dipole moment orientation of the thiols significantly affects microphase separation. This work provides new insights into the structure-property relationship of BCP materials and offers a useful tool for molecular engineering of BCPs.
Article
Polymer Science
Sunting Xuan, Xi Jiang, Nitash P. Balsara, Ronald N. Zuckermann
Summary: The research shows that through utilizing complementary molecular shapes, selective assembly between sequence-defined peptoids can be achieved. Peptoids with different overall molecular shapes were able to form crystalline nanosheets with the same lattice structure in aqueous solution.
Article
Electrochemistry
Didier Devaux, Irune Villaluenga, Xi Jiang, Yu Hao Chang, Dilworth Y. Parkinson, Nitash P. Balsara
JOURNAL OF THE ELECTROCHEMICAL SOCIETY
(2020)
Article
Materials Science, Multidisciplinary
Swarn Jha, Siddhi Mehta, Yan Chen, Peter Renner, Selvasundarasekar Sam Sankar, Dilworth Parkinson, Subrata Kundu, Hong Liang
JOURNAL OF MATERIALS CHEMISTRY C
(2020)
