Article
Chemistry, Physical
Aida Sadeghian, Mahshid Kharaziha, Maryam Khoroushi
Summary: A novel nanocomposite hydrogel was designed with osteoconductivity and high strength, reinforced with bioactive glass to enhance mechanical properties and bioactivity, significantly promoting cell attachment, proliferation, and alkaline phosphatase activity.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2022)
Review
Engineering, Electrical & Electronic
Lucas Teixeira, Felipe Loose, J. Marcos Alonso, Carlos Henrique Barriquello, Vitalio Alfonso Reguera, Marco Antonio Dalla Costa
Summary: This article presents a survey on LED drivers for visible light communication. By systematizing the most relevant published research, the modulator circuits are classified into four types. Based on reference values of power, efficiency, and data rate, it is concluded that linear mode modulators (LMMs) have the highest number of publications, while switching mode modulators (SMMs) are the recent trend.
IEEE JOURNAL OF EMERGING AND SELECTED TOPICS IN POWER ELECTRONICS
(2022)
Article
Engineering, Electrical & Electronic
Ambrish Kumar, Dushantha Nalin K. Jayakody
Summary: In this paper, two LED selection schemes are proposed to improve the security performance in underwater visible light communication. The closed-form expressions for secrecy outage probability are derived using successive interference cancellation. The validity of the numerical results is verified through experiments.
IEEE TRANSACTIONS ON VEHICULAR TECHNOLOGY
(2022)
Article
Cell Biology
Anais E. Chalard, Alexander W. Dixon, Andrew J. Taberner, Jenny Malmstrom
Summary: This study demonstrates the photopatterning of mechanical properties of GelMA hydrogels using visible light and eosin Y as the photoinitiator. The stiffness of GelMA hydrogels can be patterned in different areas and gradients using physical photomasks and projection with a digital micromirror device. The study shows the efficiency of both methods to spatially pattern the elastic modulus of GelMA according to the desired pattern. The findings suggest the potential of this technology in building in vitro models and studying cellular behaviors of fibrotic tissue.
FRONTIERS IN CELL AND DEVELOPMENTAL BIOLOGY
(2022)
Article
Automation & Control Systems
Felipe Loose, Lucas Teixeira, Joao Paulo Brum, Carlos H. Barriquello, Vitalio A. Reguera, J. Marcos Alonso, Marco A. Dalla Costa
Summary: This article presents a solution for lighting and visible light communication (VLC) using an LED driver, which combines switched-mode power supplies and linear power amplifiers (LPAs) to achieve high efficiency and wide bandwidth for high-speed communication. By adopting specific design constraints and a hybrid converter, sufficient VLC bandwidth is provided with high efficiency.
IEEE TRANSACTIONS ON INDUSTRIAL ELECTRONICS
(2022)
Article
Chemistry, Medicinal
Sasinan Bupphathong, Carlos Quiroz, Wei Huang, Pei-Feng Chung, Hsuan-Ya Tao, Chih-Hsin Lin
Summary: This review summarizes the recent modifications of GelMA and its applications in vascular tissue engineering and wound healing. Modified GelMA demonstrates improved mechanical properties and cell migration, stimulating vascular development and forming a structure comparable to the natural extracellular matrix.
Article
Engineering, Electrical & Electronic
Furkan Kokdogan, Sinan Gezici
Summary: This paper investigates a visible light positioning system where a receiver estimates the position based on signals emitted from LED transmitters. Each LED transmitter can potentially be malicious and transmit signals at an unknown power level with a certain probability. A maximum likelihood position estimator is derived based on the probabilities of malicious LED transmitters. Furthermore, decision rules are designed to detect malicious LED transmitters and various ML-based location estimators are proposed based on the detection results. The performance of the estimators is evaluated using numerical examples and compared against the Cramer-Rao lower bounds.
IEEE TRANSACTIONS ON COMMUNICATIONS
(2023)
Review
Biotechnology & Applied Microbiology
Gwang-Bum Im, Ruei-Zeng Lin
Summary: Gelatin methacrylate (GelMA) hydrogels have excellent biocompatibility and biodegradability, making them widely used in tissue engineering and regenerative medicine. The mechanical characteristics of GelMA hydrogels can be adjusted by changing crosslinking conditions, allowing them to closely resemble the native extracellular matrix (ECM) properties. GelMA hydrogels have applications in bioengineering human vascular networks, both in vitro and in vivo. They can be used for disease modeling, drug screening, and ensuring oxygenation of tissue-engineered constructs. GelMA hydrogels can also be used as implantable materials for delivering therapeutic cells to rebuild vasculature in ischemic wounds.
FRONTIERS IN BIOENGINEERING AND BIOTECHNOLOGY
(2022)
Article
Biochemistry & Molecular Biology
Hitendra Kumar, Kabilan Sakthivel, Mohamed G. A. Mohamed, Emilie Boras, Su Ryon Shin, Keekyoung Kim
Summary: Optimized synthesis parameters were used to develop GelMA bioinks with slow sol-gel transition at room temperature and visible light crosslinkable functions. Eight GelMA combinations suitable for DLP-SLA bioprinting were identified through systematic physical and rheological property characterizations. RO-GelMA bioinks were found to be most suitable for achieving high resolution in DLP-SLA printing, showing excellent biocompatibility and cell survival rates.
MACROMOLECULAR BIOSCIENCE
(2021)
Article
Optics
Yong Chen, Zimiao Ren, Zhaozhong Han, Huanlin Liu, Qi-xiang Shen, Zhiqia Wu
Summary: The proposed indoor three-dimensional positioning system of VLC based on an improved immune particle swarm optimization algorithm addresses the issues of low precision and time consuming. By optimizing field of view selection, improving the positioning model, and employing Kalman filter algorithm, the system achieves an average positioning error of 3.12 cm and convergence time of 2.03 s, significantly improving precision and speed compared to existing systems.
Article
Medicine, Research & Experimental
Alap Ali Zahid, Robin Augustine, Yogesh B. Dalvi, K. Reshma, Rashid Ahmed, Syed Raza Ur Rehman, Hany E. Marei, Rashad Alfkey, Anwarul Hasan
Summary: The study explores the use of GelMA hydrogel patches loaded with SNAP to enhance diabetic wound healing by improving cell proliferation and migration, showing promising results in promoting wound healing in diabetic rats.
BIOMEDICINE & PHARMACOTHERAPY
(2021)
Article
Polymer Science
Yang Li, Usman Shaukat, Sandra Schlogl, Tanlong Xue, Jingfang Li, Jun Nie, Xiaoqun Zhu
Summary: Driven by the demand for low cost and environmentally friendly curing processes, the research on synthesis of visible light absorbing photoinitiators has been significant in the field of photo-polymerization. In this study, a novel synthesis route is introduced to obtain a bifunctional pyrrole-carbazole-based photoinitiator (ECMO), which can initiate free radical polymerization upon visible light exposure. ECMO also acts as a sensitizer for triar-ysulfonium salts, extending their absorption window into the visible light region and showing superior curing performance in cationic polymerization.
EUROPEAN POLYMER JOURNAL
(2023)
Article
Engineering, Electrical & Electronic
Pooya Nabavi, Sajad Saghaye-Polkoo, Murat Yuksel, Christopher Kyle Renshaw
Summary: This paper presents the use of imaging-based beam-steering for multi-datastream visible light communication networks in dense IoT deployments. A dome bulb transmitter is demonstrated, which separates the beams of each LED for better spatial reuse. The performance of the prototype for dense IoT networks is quantified.
JOURNAL OF LIGHTWAVE TECHNOLOGY
(2022)
Article
Engineering, Electrical & Electronic
Wenqing Niu, Zengyi Xu, Yu Liu, Xianhao Lin, Jifan Cai, Jianyang Shi, Xiaolan Wang, Guangxu Wang, Jianli Zhang, Fengyi Jiang, Zhixue He, Shaohua Yu, Chao Shen, Junwen Zhang, Nan Chi
Summary: Nowadays, there is a growing demand for high-speed information transmission. Visible light communication (VLC) based on light-emitting diodes (LEDs) is considered a prospective candidate for future 6G communication networks. However, VLC systems face challenges due to limited modulation bandwidth and nonlinear characteristics of optoelectronic devices. This paper outlines the current state and challenges of VLC and introduces key technologies for high-speed VLC systems based on silicon (Si) substrate LED. The paper presents an ultrahigh-speed VLC system with an overall data rate of 28.93 Gbit/s, achieved through optimized LED arrays and advanced digital signal processing methods.
JOURNAL OF LIGHTWAVE TECHNOLOGY
(2023)
Article
Engineering, Electrical & Electronic
Kehan Zhang, Zaichen Zhang, Bingcheng Zhu
Summary: This paper proposes a new system that uses two optical angle-of-arrival estimators to localize LEDs. Analytical and simulation results show that setting these two estimators symmetrically with respect to the room center can reduce the error of the LED coordinates database.
IEEE TRANSACTIONS ON WIRELESS COMMUNICATIONS
(2022)
Article
Engineering, Biomedical
Cristiane M. Franca, Greeshma Thrivikraman, Avathamsa Athirasala, Anthony Tahayeri, Laurie B. Gower, Luiz E. Bertassoni
JOURNAL OF BIOMEDICAL MATERIALS RESEARCH PART B-APPLIED BIOMATERIALS
(2019)
Article
Food Science & Technology
Gabriela G. G. Trindade, Greeshma Thrivikraman, Paula P. Menezes, Cristiane M. Franca, Bruno S. Lima, Yasmim M. B. G. Carvalho, Eloisa P. B. S. S. Souza, Marcelo C. Duarte, Saravanan Shanmugam, Lucindo J. Quintans, Daniel P. Bezerra, Luiz E. Bertassoni, Adriano A. S. Araujo
FOOD AND CHEMICAL TOXICOLOGY
(2019)
Article
Multidisciplinary Sciences
Cristiane Miranda Franca, Rachelle Riggers, John L. Muschler, Matthias Widbiller, Peter Manning Lococo, Anibal Diogenes, Luiz Eduardo Bertassoni
SCIENTIFIC REPORTS
(2019)
Article
Engineering, Biomedical
Ana P. Fugolin, Adam Dobson, Vincent Huynh, Wilbes Mbiya, Oscar Navarro, Cristiane M. Franca, Matthew Logan, Justin L. Merritt, Jack L. Ferracane, Carmem S. Pfeifer
ACTA BIOMATERIALIA
(2019)
Letter
Engineering, Biomedical
Zenildo Santos Silva, Cristiane Miranda Franca, Renato Prates, Sergio Brossi Botta, Raquel Agnelli Mesquita Ferrari, Patricia Aparecida Ana, Christiane Pavani, Kristianne Porta Santos Fernandes, Daniela da Silva, Michael R. Hamblin, Sandra Kalil Bussadori
LASERS IN MEDICAL SCIENCE
(2020)
Article
Chemistry, Multidisciplinary
Ramesh Subbiah, Christina Hipfinger, Anthony Tahayeri, Avathamsa Athirasala, Sivaporn Horsophonphong, Greeshma Thrivikraman, Cristiane Miranda Franca, Diana Araujo Cunha, Amin Mansoorifar, Albena Zahariev, James M. Jones, Paulo G. Coelho, Lukasz Witek, Hua Xie, Robert E. Guldberg, Luiz E. Bertassoni
ADVANCED MATERIALS
(2020)
Article
Engineering, Biomedical
A. P. P. Fugolin, Oscar Navarro, Matthew G. Logan, Vincent Huynh, Cristiane M. Franca, Jack L. Ferracane, Carmem S. Pfeifer
ACTA BIOMATERIALIA
(2020)
Article
Multidisciplinary Sciences
S. Prakash Parthiban, Wenting He, Nelson Monteiro, Avathamsa Athirasala, Cristiane Miranda Franca, Luiz E. Bertassoni
SCIENTIFIC REPORTS
(2020)
Article
Materials Science, Biomaterials
Chelsea Twohig, Mari Helsinga, Amin Mansoorifar, Avathamsa Athirasala, Anthony Tahayeri, Cristiane Miranda Franca, Silvia Amaya Pajares, Reyan Abdelmoniem, Susanne Scherrer, Stephane Durual, Jack Ferracane, Luiz E. Bertassoni
Summary: The study introduces a novel dual-ink bioprinting method to create vasculature interwoven inside CaP bone constructs, indicating the feasibility of creating vascularized bone scaffolds for enhancing vascular formation in the core of bone scaffolds.
MATERIALS SCIENCE & ENGINEERING C-MATERIALS FOR BIOLOGICAL APPLICATIONS
(2021)
Article
Biochemical Research Methods
Talita Christine Camillo Lopez, Taina Caroline dos Santos Malavazzi, Maria Fernanda Setubal Destro Rodrigues, Erna Elisabeth Bach, Daniela Teixeira Silva, Edgar Matias Bach Hi, Cristiane Miranda Franca, Sandra Kalil Bussadori, Raquel Agnelli Mesquita-Ferrari, Kristianne Porta Santos Fernandes
Summary: This study evaluated the effects of vascular photobiomodulation (VPBM) on the repair of acute muscle injury. The results showed that both preventive and therapeutic VPBM led to a decrease in inflammatory infiltrate, edema, and myonecrosis, as well as an increase in immature muscle fibers. Serum levels of creatine kinase, aspartate aminotransferase, and lactate were lower in the groups treated with VPBM, with the most pronounced effects observed with preventive VPBM application.
JOURNAL OF BIOPHOTONICS
(2022)
Review
Engineering, Biomedical
Cristiane Miranda Franca, Gabriela de Souza Balbinot, Diana Cunha, Vicente de Paulo Aragao Saboia, Jack Ferracane, Luiz E. Bertassoni
Summary: Dental caries is a multifactorial and dynamic disease that affects over 90% of adults worldwide. The current treatment for decayed tissue involves using materials to replace lost enamel or dentin. The development and understanding of restorative dental materials rely on in-vitro and in-vivo tests. This review discusses the unique characteristics of the tooth and dentin-pulp interface for material testing, commonly used in-vitro tests for evaluating dental material biocompatibility, and presents future directions for biological research on dental materials using tissue engineering and organs on-a-chip approaches.
ACTA BIOMATERIALIA
(2022)
Article
Engineering, Biomedical
Cristiane M. Franca, Avathamsa Athirasala, Ramesh Subbiah, Anthony Tahayeri, Prakash Selvakumar, Amin Mansoorifar, Sivaporn Horsophonphong, Ashley Sercia, Lina Nih, Luiz E. Bertassoni
Summary: This study introduces a strategy to bioprint endothelial and stem-cell laden microgels in a geometrically controlled manner, allowing these cells to form mature and functional pericyte-supported vascular capillaries. These pre-vascularized constructs can then be injected into the body in a minimally invasive manner. The results demonstrate that this approach offers scalable and customizable solutions for tissue regeneration, addressing a significant issue in the field of regenerative medicine.
ADVANCED HEALTHCARE MATERIALS
(2023)
Article
Dentistry, Oral Surgery & Medicine
Sivaporn Horsophonphong, Ashley Sercia, Cristiane M. Franca, Anthony Tahayeri, Ashok P. Reddy, Phillip A. Wilmarth, Rudee Surarit, Anthony J. Smith, Jack L. Ferracane, Luiz E. Bertassoni
ARCHIVES OF ORAL BIOLOGY
(2020)
Article
Biochemical Research Methods
Cristiane Miranda Franca, Anthony Tahayeri, Nara Sousa Rodrigues, Shirin Ferdosian, Regina Maria Puppin Rontani, Grigoriy Sereda, Jack L. Ferracane, Luiz E. Bertassoni
Article
Engineering, Biomedical
Avathamsa Athirasala, Anthony Tahayeri, Greeshma Thrivikraman, Cristiane M. Franca, Nelson Monteiro, Victor Tran, Jack Ferracane, Luiz E. Bertassoni