Review
Polymer Science
Evgenia Blynskaya, Sergey Tishkov, Konstantin Alekseev, Alexandre A. Vetcher, Anna Marakhova, Dovlet T. Rejepov
Summary: This article discusses the technologies for personalized therapy dosage formulations in the fields of inkjet and 3D printing, including 2D, 3D, and 4D printing. By combining smart polymers and special technological approaches, 4D printed dosage formulations can be obtained. The article also presents the most widely used polymers and their technological characteristics, as well as the challenges faced in the development of new materials and technologies.
Review
Engineering, Mechanical
Manikandan Nachimuthu, P. K. Rajesh
Summary: This review provides an overview of 4D printing of shape memory polymers using inkjet printing technology. It examines the development and limitations of inkjet 4D printing, as well as the shape memory capability of the printed structures. The review highlights the need for novel polymer inks specific for inkjet printing to fully utilize the potential of this technology.
RAPID PROTOTYPING JOURNAL
(2023)
Article
Chemistry, Physical
Lijun Duan, Qiaojing Wang, Leiting Xiao, Liying Lu, Likun Zang
Summary: An innovative one-pot electrochemical method has been studied for the synthesis of PPy-Cu composite films as the active layer of ReRAM. Cu is uniformly distributed in the films and exhibits two valence states of Cu (0) and Cu (II). The presence of Cu (II) is beneficial for maintaining stable resistive switching performance. The Pt/PPy-Cu/Pt ReRAM device shows excellent memory performance with a low threshold voltage, a long retention time, and good endurance cycles. The resistive switching mechanism is mainly dominated by the Space Charge Limited Current (SCLC) effect accompanied by Schottky emission.
CHEMICAL PHYSICS LETTERS
(2023)
Article
Chemistry, Physical
Zbigniew Stempien, Mohmmad Khalid, Marcin Kozanecki, Paulina Filipczak, Angelika Wrzesinska, Ewa Korzeniewska, Elzbieta Sasiadek
Summary: A novel method was proposed for preparing PPy layers on textile fabrics with reactive inkjet printing, and it was found that the surface resistance of PPy layers decreased linearly with polymerization temperature. The spectroscopic studies showed that the degree of PPy oxidation and its conformation is independent of polymerization temperature, with lower temperature resulting in smoother PPy layer surfaces. The as-coated PPy layers on PP textile substrates were further assembled as electrodes in symmetric supercapacitor devices, demonstrating high specific capacitance, energy density, and power density.
Article
Computer Science, Software Engineering
Koya Narumi, Kazuki Koyama, Kai Suto, Yuta Noma, Hiroki Sato, Tomohiro Tachi, Masaaki Sugimoto, Takeo Igarashi, Yoshihiro Kawahara
Summary: We propose Inkjet 4D Print, a method that uses an inkjet UV printer to print 2D patterns on a heat-shrinkable base sheet to create self-folding 3D origami tessellations. Compared to previous folding-based 4D printing approaches using FDM 3D printers, our method offers higher resolution, faster printing speed, and optional full-color decoration.
ACM TRANSACTIONS ON GRAPHICS
(2023)
Review
Materials Science, Multidisciplinary
Tuan Van Nguyen, Quyet Van Le, Shengjie Peng, Zhengfei Dai, Sang Hyun Ahn, Soo Young Kim
Summary: Electrochromism is the ability of a material to change its optical properties or color when an external potential is applied. Conventional electrochromic materials based on inorganic materials have drawbacks including single color change, expensive materials, and slow switching speed. To overcome these challenges, conducting polymers (CPs) have emerged as a promising alternative with advantages of multicolor, fast response, low cost, easy processing, and environmental friendliness. This review introduces the current state-of-the-art development of ECDs based on three popular CPs, namely, polyaniline, polypyrrole, and poly(3,4-ethylenedioxythiophene) polystyrene sulfonate, with emphasis on their synthetic approaches and electrochromic performance.
ADVANCED MATERIALS TECHNOLOGIES
(2023)
Article
Chemistry, Multidisciplinary
Joshua Tropp, Caralyn P. Collins, Xinran Xie, Rachel E. Daso, Abijeet Singh Mehta, Shiv P. Patel, Manideep M. Reddy, Sophia E. Levin, Cheng Sun, Jonathan Rivnay
Summary: This study reports a new type of hydrogel material with high conductivity and dispersibility, which can transmit signals between living tissue and medical devices. The material can be used to manufacture flexible organic bioelectronic materials with a wide range of potential applications.
ADVANCED MATERIALS
(2023)
Article
Engineering, Manufacturing
Qifeng Qian, Jan Henk Kamps, Brian Price, Hao Gu, Ricky Wildman, Richard Hague, Belen Begines, Christopher Tuck
Summary: In this study, a 3D reactive inkjet printing method was developed to successfully fabricate bisphenol A-polycarbonate material, demonstrating the capability to broaden the range of AM materials to include engineering grade polymers.
ADDITIVE MANUFACTURING
(2022)
Article
Materials Science, Multidisciplinary
Tanyaradzwa N. Mangoma, Shunsuke Yamamoto, George G. Malliaras, Ronan Daly
Summary: Organic electrochemical transistors (OECTs) are essential in bioelectronics and printed electronics applications due to their simple structure, ease of tunability, biocompatibility, and suitability for different fabrication routes. This study presents a hybrid direct-write additive manufacturing approach to fabricating OECTs, combining 3D printing of conducting and insulating layers with inkjet printing of semiconducting thin films. The results demonstrate that this manufacturing method can rapidly produce OECTs and neuromorphic devices with good performance.
ADVANCED MATERIALS TECHNOLOGIES
(2022)
Article
Chemistry, Physical
Kang Chen, Shihang Zhao, Jie Sun, Jiachao Zhou, Yingchao Wang, Kai Tao, Xunwen Xiao, Lei Han
Summary: A core-shell structure composite material consisting of a conductive polymer and 2D conductive metal-organic frameworks (CMOFs) was assembled by hydrothermal methods, demonstrating excellent performance. The material was incorporated into a hybrid supercapacitor and showed superior energy density and lifetime, as well as the ability to illuminate 12 LEDs. This strategy provides additional options for developing high-performance electrode materials for supercapacitor devices.
ACS APPLIED ENERGY MATERIALS
(2021)
Review
Materials Science, Multidisciplinary
Miryam Criado-Gonzalez, Antonio Dominguez-Alfaro, Naroa Lopez-Larrea, Nuria Alegret, David Mecerreyes
Summary: Conducting polymers have attracted great attention for the development of (bio)electronic devices. Additive manufacturing techniques like 3D printing provide a way to design and process conducting polymers, showing potential for future wearable three-dimensional (3D) (bio)electronic devices.
ACS APPLIED POLYMER MATERIALS
(2021)
Review
Polymer Science
Urte Samukaite Bubniene, Vilma Ratautaite, Arunas Ramanavicius, Vytautas Bucinskas
Summary: This paper provides an overview of the application of conducting polymers in tactile sensor design, covering topics such as the chemical and physical properties of conducting polymers, conversion of mechanical effects, additives used in sensor development, design aspects of tactile sensors, and operational principles. Additionally, it discusses various methods applied for the design of sensors based on conductive polymers.
Article
Engineering, Electrical & Electronic
Andrew Closson, Haley Richards, Zhe Xu, Congran Jin, Lin Dong, John X. J. Zhang
Summary: A method of printing conductive polymers onto P(VDF-TrFE) nanofibers was introduced for creating all-polymer piezoelectric devices. The devices showed sensitivity to impact and bending, and were able to detect breathing and pulse rate when placed on the carotid and radial arteries. This approach allows for flexible piezoelectric sensing in an array format, with applications in foot movement sensing.
IEEE SENSORS JOURNAL
(2021)
Article
Chemistry, Analytical
Mahmuda Akter Monne, Chandan Qumar Howlader, Bhagyashree Mishra, Maggie Yihong Chen
Summary: The study demonstrates the synthesis and application of PVA solutions, as well as its potential use as sacrificial material in micro-electro-mechanical systems. The research shows that PVA has excellent potential in printed or traditional transistor fabrication, with a dielectric constant of 168 at 100 kHz.
Article
Engineering, Manufacturing
Tim Tilford, Stoyan Stoyanov, Jessica Braun, Jan Christoph Janhsen, Mayur K. Patel, Chris Bailey
Summary: This article compares the thermomechanical behavior of 3-D inkjet-printed microelectronics devices with those fabricated from traditional methods and discusses the benefits and challenges of adopting additive manufacturing methods for microelectronics manufacture. Numerical modeling techniques are used to gain insight into the critical issues related to the design and reliability of additively manufactured parts and systems. The EU NextFactory project developed a state-of-the-art modular microelectronics fabrication system, which was used to manufacture reliable test samples assessed experimentally and numerically.
IEEE TRANSACTIONS ON COMPONENTS PACKAGING AND MANUFACTURING TECHNOLOGY
(2021)
Article
Chemistry, Analytical
Alexander R. Harris, Carrie Newbold, Dimitra Stathopoulos, Paul Carter, Robert Cowan, Gordon G. Wallace
Summary: The electrochemical performance of platinum electrodes was evaluated in vitro and in vivo, and the study found that electrode polarization significantly affected the electrochemical response. Initial in vitro measurements were not good predictors of subsequent measurements in vitro or in vivo. Electrode implantation affected the electrochemical impedance, with lower frequencies being more dependent on electrode properties and higher frequencies being dependent on solution properties.
Article
Chemistry, Multidisciplinary
Steven Posniak, Johnson H. Y. Chung, Xiao Liu, Payal Mukherjee, Sanjeev Gambhir, Afsaneh Khansari, Gordon G. Wallace
Summary: Advancements in 3D bioprinting technology have allowed for the controlled deposition of cells, leading to the development of constructs that match the anatomical features of patients. In this study, a 3D bioprinted scaffold made from GelMA/HAMA was used to investigate the monocultures and co-cultures of human septal chondrocytes and human bone marrow-derived mesenchymal stem cells. The findings demonstrated that the combination of these cell types produced cell proliferation and chondrogenic expressions that mimicked the characteristics of both cell types. This research suggests that co-cultures of BM-hMSCs and healthy septal PCs can be utilized to replace monocultures in cartilage regeneration studies.
Article
Materials Science, Biomaterials
D. S. Abdullah Al Maruf, Krishnan Parthasarathi, Kai Cheng, Payal Mukherjee, David R. McKenzie, Jeremy M. Crook, Gordon G. Wallace, Jonathan R. Clark
Summary: This review focuses on the recent progresses in modulating the physiochemical properties and applications of biomaterials in bone tissue engineering (BTE) for mandibular segmental defect repair. BTE is an important strategy for reconstructing critical-sized bone defects and improving patients' quality of life.
INTERNATIONAL JOURNAL OF POLYMERIC MATERIALS AND POLYMERIC BIOMATERIALS
(2023)
Article
Engineering, Environmental
Kezhong Wang, Yunfeng Chao, Zhiqi Chen, Sepidar Sayyar, Caiyun Wang, Gordon Wallace
Summary: A facile coaxial wet-spinning method was used to continuously produce hollow graphene fibers with high conductivity and flexibility. The resulting fibers exhibited outstanding electrochemical and mechanical properties, making them promising candidates for use in wearable supercapacitors and electronics.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Polymer Science
Abdul Moqeet Hai, Zhilian Yue, Stephen Beirne, Gordon Wallace
Summary: Electrowriting combines 3D printing and electrospinning to produce complex structures with submicron resolutions. This study demonstrates the compatibility of water-based silk fibroin ink with electrowriting and explores the optimization of ink composition and process parameters. The electrowriting of hydrophilic silk fibroin has the potential to create material structures with biological properties similar to natural systems.
JOURNAL OF APPLIED POLYMER SCIENCE
(2023)
Article
Chemistry, Multidisciplinary
Xiaoteng Jia, Xuenan Ma, Li Zhao, Meiying Xin, Yulei Hao, Peng Sun, Chenguang Wang, Danming Chao, Fangmeng Liu, Caiyun Wang, Geyu Lu, Gordon Wallace
Summary: Implanted rechargeable batteries with biodegradable properties are highly desirable, but limited by the lack of suitable electrode materials. In this study, we present a molecular engineering strategy to develop erodible poly(3,4-ethylenedioxythiophene) (PEDOT) with hydrolyzable carboxylic acid pendants. The compact rechargeable Zn battery with this material demonstrates high capacity and cycling stability, and shows complete biodegradation and biocompatibility in vivo. This strategy offers potential for developing implantable conducting polymers with predetermined degradation profiles and high energy storage capability.
Correction
Multidisciplinary Sciences
Nutan Chaudhari, Alison D. Findlay, Andrew W. Stevenson, Tristan D. Clemons, Yimin Yao, Amar Joshi, Sepidar Sayyar, Gordon Wallace, Suzanne Rea, Priyanka Toshniwal, Zhenjun Deng, Philip E. Melton, Nicole Hortin, K. Swaminathan Iyer, Wolfgang Jarolimek, Fiona M. Wood, Mark W. Fear
NATURE COMMUNICATIONS
(2023)
Article
Multidisciplinary Sciences
Yan Zhou, Xiaoteng Jia, Daxin Pang, Shan Jiang, Meihua Zhu, Geyu Lu, Yaping Tian, Caiyun Wang, Danming Chao, Gordon Wallace
Summary: The authors propose a simplified wearable iontophoresis patch with a built-in Mg battery for efficient and controllable transdermal delivery. This patch eliminates the conventional interface impedance between the electrode and drug reservoir, reducing system complexity and size. The delivery dosage can be easily manipulated by tuning the viologen hydrogel and the iontophoresis stimulation mode.
NATURE COMMUNICATIONS
(2023)
Article
Electrochemistry
Amruthalakshmi Vijayakumar, Yong Zhao, Kezhong Wang, Yunfeng Chao, Haiqun Chen, Caiyun Wang, Gordon G. G. Wallace
Summary: In this study, a scalable one-step glucose blowing method was used to prepare a porous N-doped carbon supported Cu nanoparticles (Cu-NC) composite catalyst for CO2 electroreduction. The Cu-NC catalyst showed efficient catalytic activity for CO2-to-C1 product (CO and formate) conversion, with a high efficiency of 69% at an overpotential of 590 mV. The excellent catalytic activity is attributed to the structure of the composite and the presence of N-species in the carbonaceous matrix.
Article
Medicine, Research & Experimental
Xiao Liu, Marius Berthel, Grishmi Rajbhandari, Ying Zhou, Philip M. Lewis, Zhilian Yue, Gordon G. Wallace
Summary: This research developed a collagen-based hybrid tissue repair patch that can integrate into surrounding tissue and control inflammatory responses for effective post-operative inflammation control. The patch enables simultaneous loading and release of multiple drugs with controllable ratios. The demonstration of co-encapsulation and release of anti-inflammatory dexamethasone and anti-epileptic phenytoin validates the dual drug delivery ability of this versatile composite material. The material's Young's modulus was increased to 20 KPa using a biocompatible riboflavin-induced UV light cross-linking strategy. This composite material has broad potential applications and warrants further research exploration.
MOLECULAR PHARMACEUTICS
(2023)
Review
Chemistry, Physical
Ruibo Zhong, Sepehr Talebian, Barbara B. Mendes, Gordon Wallace, Robert Langer, Joao Conde, Jinjun Shi
Summary: RNA-based therapeutics hold great promise in disease intervention, and hydrogels are attracting attention for controlled release of these therapeutics. Hydrogels offer advantages such as biodegradability, tunable physiochemical properties, and precise spatiotemporal control over RNA release.
Article
Biochemistry & Molecular Biology
Lingzhi Kang, Ying Zhou, Xifang Chen, Zhilian Yue, Xiao Liu, Chris Baker, Gordon G. Wallace
Summary: The development of biomimetic structures using integrated extracellular matrix (ECM) components provides a promising method for biomaterial fabrication. In this study, an artificial ECM consisting of collagen I, elastin (ELN), and hyaluronan (HA) was created. The electrochemically aligned collagen and ELN mimic the composition of the dermal matrix, while HA is incorporated into the matrices through adsorption and chemical immobilization. The resulting collagen/ELN/hyaluronic acid scaffold (CEH) recapitulates the compositional features of the native skin ECM and supports the proliferation, differentiation, and regeneration of skin cells.
MACROMOLECULAR BIOSCIENCE
(2023)
Article
Cell & Tissue Engineering
Tajanka Mladenovska, Peter F. Choong, Gordon G. Wallace, Cathal D. O'Connell
Summary: New developments in additive manufacturing and regenerative medicine have the potential to disrupt traditional therapy development and medical device manufacture. Regulators face challenges in adapting traditional regulatory frameworks for bespoke solutions and incorporating living cells in 3D bioprinting. This perspective discusses the regulatory challenges of 3D bioprinting in comparison to existing cell therapies and custom-made medical devices, including classification, risk, standardization, and quality control.
REGENERATIVE MEDICINE
(2023)
Review
Chemistry, Physical
Shuyu Zhang, Guoshi Xu, Juan Wu, Xiao Liu, Yong Fan, Jun Chen, Gordon Wallace, Qi Gu
Summary: In recent years, significant advancements have been made in microphysiological constructs and systems (MPCs and MPSs), providing alternatives to animal models for drug discovery and personalized medicine. However, current approaches mainly focus on the in vitro recapitulation of the human anatomical structure and physiological-biochemical indices at a single or a few simple levels.
Review
Chemistry, Multidisciplinary
Qilong Wu, Fangfang Zhu, Gordon Wallace, Xiangdong Yao, Jun Chen
Summary: This article introduces the severity of nitrogen pollution and calls for joint action for sustainable nitrogen use. Electrocatalytic NW reduction is presented as a potentially greener alternative for recycling NW and producing high-value chemicals. However, there are challenges in integrating this technology into upstream and downstream industrial chains. The article discusses future directions for optimizing production processes and providing nitrogenous raw materials.
CHEMICAL SOCIETY REVIEWS
(2023)
