1
|
Sham Sunder Bharadwaj S, Lin CY, Divvela MJ, Joo YL. Facile Adaptation of a Fused Deposition Modeling 3D Printer to Motionless Printing through Programmable Electric Relay: Discretized Modeling and Experiments. 3D Print Addit Manuf 2024; 11:251-260. [PMID: 38389683 PMCID: PMC10880643 DOI: 10.1089/3dp.2022.0062] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/24/2024]
Abstract
In this study, a fused deposition modeling 3D printer is modified into a motionless printer, which has the potential to print patterns in a noiseless manner possibly with improved resolution and in less delay time by eliminating the movement of nozzle or collector. In this motionless 3D printer, both nozzle and collector are fixed, whereas the extruded polymer melt is driven by high-voltage switching points on the collector. By this approach, simple 3D patterns such as multilayer circles, squares, and walls have been printed using two polymer melts with different rheological properties, high-temperature polylactic acid and acrylonitrile butadiene styrene. Furthermore, a discretized, nonisothermal bead and spring model is developed to probe printing patterns. The effect of parameters, such as number of conducting points, switching time, voltage and material properties on the accuracy of the printed simple 3D patterns, are thoroughly studied, and we demonstrated that various fiber collection patterns obtained from the experiments are favorably compared with the simulation results.
Collapse
Affiliation(s)
| | - Chia-Yi Lin
- School of Chemical and Biomolecular Engineering, Cornell University, Ithaca, New York, USA
| | - Mounica J. Divvela
- School of Chemical and Biomolecular Engineering, Cornell University, Ithaca, New York, USA
| | - Yong Lak Joo
- School of Chemical and Biomolecular Engineering, Cornell University, Ithaca, New York, USA
| |
Collapse
|
2
|
Miraghaie SH, Zandi A, Davari Z, Mousavi-Kiasary MS, Saghafi Z, Gilani A, Kordehlachin Y, Shojaeian F, Mamdouh A, Heydari Z, Dorkoosh FA, Kaffashi B, Abdolahad M. Targeted Delivery of Anticancer Drug Loaded Charged PLGA Polymeric Nanoparticles Using Electrostatic Field. Macromol Biosci 2023; 23:e2300181. [PMID: 37399543 DOI: 10.1002/mabi.202300181] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2023] [Revised: 06/10/2023] [Accepted: 06/28/2023] [Indexed: 07/05/2023]
Abstract
Pure positive electrostatic charges (PPECs) show suppressive effect on the proliferation and metabolism of invasive cancer cells without affecting normal tissues. PPECs are used for the delivery of drug-loaded polymeric nanoparticles (DLNs) capped with negatively charged poly(lactide-co-glycolide) (PLGA) and Poly(vinyl-alcohol) PVA into the tumor site of mouse models. The charged patch is installed on top of the skin in the mouse models' tumor region, and the controlled selective release of the drug is assayed by biochemical, radiological, and histological experiments on both tumorized models and normal rats' livers. It is found that DLNs synthesized by PLGA show great attraction to PPECs due to their stable negative charges, which would not degrade immediately in blood. The burst and drug release after less than 48h of this synthesized DLNs are 10% and 50%, respectively. These compounds can deliver the loaded-drug into the tumor site with the assistance of PPECs, and the targeted-retarded release will take place. Hence, local therapy can be achieved with much lower drug concentration (conventional chemotherapy [2 mg kg-1 ] versus DLNs-based chemotherapy [0.75 mg kg-1 ]) with negligible side effects in non-targeted organs. PPECs have many potential clinical applications for advanced-targeted chemotherapy with the lowest discernible side effects.
Collapse
Affiliation(s)
- Seyyed Hossein Miraghaie
- Department of Polymer Engineering, Kish International Campus, University of Tehran, Kish Island, 79416-55664, Iran
- Nano Electronic Center of Excellence, Nano-bioelectronic Devices Lab., Cancer Electronics Research Group, School of Electrical and Computer Eng., College of Engineering, University of Tehran, Tehran, 14395-515, Iran
- Department of Pharmaceutics, Faculty of Pharmacy, Tehran University of Medical Sciences, Tehran, 14176-14411, Iran
| | - Ashkan Zandi
- Nano Electronic Center of Excellence, Nano-bioelectronic Devices Lab., Cancer Electronics Research Group, School of Electrical and Computer Eng., College of Engineering, University of Tehran, Tehran, 14395-515, Iran
- Nano Electronic Center of Excellence, Nano-electronics and Thin Film Lab., School of Electrical and Computer Eng., College of Engineering, University of Tehran, Tehran, 14395-515, Iran
| | - Zahra Davari
- Nano Electronic Center of Excellence, Nano-bioelectronic Devices Lab., Cancer Electronics Research Group, School of Electrical and Computer Eng., College of Engineering, University of Tehran, Tehran, 14395-515, Iran
- Department of Pharmaceutics, Faculty of Pharmacy, Tehran University of Medical Sciences, Tehran, 14176-14411, Iran
| | - Mohamad Sadegh Mousavi-Kiasary
- Nano Electronic Center of Excellence, Nano-bioelectronic Devices Lab., Cancer Electronics Research Group, School of Electrical and Computer Eng., College of Engineering, University of Tehran, Tehran, 14395-515, Iran
| | - Zohre Saghafi
- Nano Electronic Center of Excellence, Nano-bioelectronic Devices Lab., Cancer Electronics Research Group, School of Electrical and Computer Eng., College of Engineering, University of Tehran, Tehran, 14395-515, Iran
| | - Ali Gilani
- Nano Electronic Center of Excellence, Nano-bioelectronic Devices Lab., Cancer Electronics Research Group, School of Electrical and Computer Eng., College of Engineering, University of Tehran, Tehran, 14395-515, Iran
| | - Yasin Kordehlachin
- Nano Electronic Center of Excellence, Nano-bioelectronic Devices Lab., Cancer Electronics Research Group, School of Electrical and Computer Eng., College of Engineering, University of Tehran, Tehran, 14395-515, Iran
| | - Fatemeh Shojaeian
- Nano Electronic Center of Excellence, Nano-bioelectronic Devices Lab., Cancer Electronics Research Group, School of Electrical and Computer Eng., College of Engineering, University of Tehran, Tehran, 14395-515, Iran
- School of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, 19615-1179, Iran
| | - Amir Mamdouh
- Nano Electronic Center of Excellence, Nano-bioelectronic Devices Lab., Cancer Electronics Research Group, School of Electrical and Computer Eng., College of Engineering, University of Tehran, Tehran, 14395-515, Iran
| | - Zahra Heydari
- Preclinical lab, Core facility, Tehran University of Medical Sciences, Tehran, 14174-66191, Iran
| | - Farid Abedin Dorkoosh
- Department of Pharmaceutics, Faculty of Pharmacy, Tehran University of Medical Sciences, Tehran, 14176-14411, Iran
| | - Babak Kaffashi
- Department of Polymer Engineering, School of Chemical Engineering, College of Engineering, University of Tehran, Tehran, 11155-4563, Iran
| | - Mohammad Abdolahad
- Nano Electronic Center of Excellence, Nano-bioelectronic Devices Lab., Cancer Electronics Research Group, School of Electrical and Computer Eng., College of Engineering, University of Tehran, Tehran, 14395-515, Iran
- Department of Pharmaceutics, Faculty of Pharmacy, Tehran University of Medical Sciences, Tehran, 14176-14411, Iran
- Cancer Institute, Tehran University of Medical Sciences, Tehran, 1416753955, Iran
| |
Collapse
|
3
|
Zhong S, Yuan S, Zhang X, Zhang J, Xu L, Xu T, Zuo T, Cai Y, Yi L. Hierarchical Cellulose Aerogel Reinforced with In Situ-Assembled Cellulose Nanofibers for Building Cooling. ACS Appl Mater Interfaces 2023; 15:39807-39817. [PMID: 37555249 DOI: 10.1021/acsami.3c06178] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 08/10/2023]
Abstract
The development of new structural materials for passive daytime radiative cooling (PDRC) of buildings will significantly reduce global building energy consumption. Cellulose aerogels are potential PDRC materials for building cooling, but the cooling performance and mechanical strength of cellulose aerogels are considered as challenges for their practical applications. Herein, a bio-inspired hierarchically structured cellulose aerogel (HSCA) was fabricated through an assembly strategy assisted by a high-voltage electrostatic field. The HSCA possesses outstanding PDRC performance and moderate mechanical strength owing to aligned hierarchical porous network microstructures reinforced with in situ-assembled crystalline cellulose nanofibers. Promisingly, the HSCA achieves a max cooling temperature of 7.2 °C and exhibits 1.9 MPa axial compressive strength. There was no significant cooling performance degradation after the hydrophobically modified HSCA was placed outdoors for 3 months. A simulation of potential cooling energy savings shows that by using HSCA as the building envelopes (side wall and roof), it can save 52.7% of cooling energy compared to the building baseline consumption. This new strategy opens up the possibility of developing advanced functionally regenerated cellulose aerogel, which is expected to provide a revolutionary improvement in aerogel materials for building cooling.
Collapse
Affiliation(s)
- Shenjie Zhong
- Institute of Advanced Functional Coatings, College of Textile Science and Engineering, Zhejiang Sci-Tech University, Hangzhou 310018, P. R. China
- Engineering Research Center for Eco-Dyeing & Finishing of Textiles, Ministry of Education, Zhejiang Sci-Tech University, Hangzhou 310018, P. R. China
- Key Laboratory of Advanced Textile Materials and Manufacturing Technology, Ministry of Education, Zhejiang Sci-Tech University, Hangzhou 310018, P. R. China
| | - Shuaixia Yuan
- Institute of Advanced Functional Coatings, College of Textile Science and Engineering, Zhejiang Sci-Tech University, Hangzhou 310018, P. R. China
- Engineering Research Center for Eco-Dyeing & Finishing of Textiles, Ministry of Education, Zhejiang Sci-Tech University, Hangzhou 310018, P. R. China
- Key Laboratory of Advanced Textile Materials and Manufacturing Technology, Ministry of Education, Zhejiang Sci-Tech University, Hangzhou 310018, P. R. China
| | - Xun Zhang
- Institute of Advanced Functional Coatings, College of Textile Science and Engineering, Zhejiang Sci-Tech University, Hangzhou 310018, P. R. China
- Engineering Research Center for Eco-Dyeing & Finishing of Textiles, Ministry of Education, Zhejiang Sci-Tech University, Hangzhou 310018, P. R. China
- Key Laboratory of Advanced Textile Materials and Manufacturing Technology, Ministry of Education, Zhejiang Sci-Tech University, Hangzhou 310018, P. R. China
| | - Jiawen Zhang
- Institute of Advanced Functional Coatings, College of Textile Science and Engineering, Zhejiang Sci-Tech University, Hangzhou 310018, P. R. China
- Engineering Research Center for Eco-Dyeing & Finishing of Textiles, Ministry of Education, Zhejiang Sci-Tech University, Hangzhou 310018, P. R. China
- Key Laboratory of Advanced Textile Materials and Manufacturing Technology, Ministry of Education, Zhejiang Sci-Tech University, Hangzhou 310018, P. R. China
| | - Lang Xu
- Institute of Advanced Functional Coatings, College of Textile Science and Engineering, Zhejiang Sci-Tech University, Hangzhou 310018, P. R. China
- Engineering Research Center for Eco-Dyeing & Finishing of Textiles, Ministry of Education, Zhejiang Sci-Tech University, Hangzhou 310018, P. R. China
- Key Laboratory of Advanced Textile Materials and Manufacturing Technology, Ministry of Education, Zhejiang Sci-Tech University, Hangzhou 310018, P. R. China
| | - Tianqi Xu
- Institute of Advanced Functional Coatings, College of Textile Science and Engineering, Zhejiang Sci-Tech University, Hangzhou 310018, P. R. China
- Engineering Research Center for Eco-Dyeing & Finishing of Textiles, Ministry of Education, Zhejiang Sci-Tech University, Hangzhou 310018, P. R. China
- Key Laboratory of Advanced Textile Materials and Manufacturing Technology, Ministry of Education, Zhejiang Sci-Tech University, Hangzhou 310018, P. R. China
| | - Tian Zuo
- Institute of Advanced Functional Coatings, College of Textile Science and Engineering, Zhejiang Sci-Tech University, Hangzhou 310018, P. R. China
- Engineering Research Center for Eco-Dyeing & Finishing of Textiles, Ministry of Education, Zhejiang Sci-Tech University, Hangzhou 310018, P. R. China
- Key Laboratory of Advanced Textile Materials and Manufacturing Technology, Ministry of Education, Zhejiang Sci-Tech University, Hangzhou 310018, P. R. China
| | - Ying Cai
- Institute of Advanced Functional Coatings, College of Textile Science and Engineering, Zhejiang Sci-Tech University, Hangzhou 310018, P. R. China
- Engineering Research Center for Eco-Dyeing & Finishing of Textiles, Ministry of Education, Zhejiang Sci-Tech University, Hangzhou 310018, P. R. China
- Key Laboratory of Advanced Textile Materials and Manufacturing Technology, Ministry of Education, Zhejiang Sci-Tech University, Hangzhou 310018, P. R. China
| | - Lingmin Yi
- Institute of Advanced Functional Coatings, College of Textile Science and Engineering, Zhejiang Sci-Tech University, Hangzhou 310018, P. R. China
- Engineering Research Center for Eco-Dyeing & Finishing of Textiles, Ministry of Education, Zhejiang Sci-Tech University, Hangzhou 310018, P. R. China
- Key Laboratory of Advanced Textile Materials and Manufacturing Technology, Ministry of Education, Zhejiang Sci-Tech University, Hangzhou 310018, P. R. China
| |
Collapse
|
4
|
Zhou L, Tse TJ, Chicilo F, Meda V, Reaney MJT. Electrostatic field as an emergent technology in refining crude oils: a review. Crit Rev Food Sci Nutr 2023:1-13. [PMID: 37552117 DOI: 10.1080/10408398.2023.2244080] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/09/2023]
Abstract
Vegetable oils and fatty acid esters (FAEs) are commonly used in various industrial and commercial applications. However, the presence of contaminants in these oils can severely affect their functionality and suitability. Conventional refining techniques for vegetable oils typically involve degumming, neutralization, bleaching and deodorization. Meanwhile, refining of FAEs often utilize wet or dry washing processes. These are often resource-intensive, producing substantial waste products, causing neutral oil loss, and can also result in the loss of micronutrients. To address these challenges, researchers have explored the use of nano-adsorbents and electrostatic field (E-field) technologies as alternatives in purifying industrial dielectric oils by removing polar particles and contaminants. Nano-adsorbents demonstrated increased efficiency in removing polar contamination while minimizing neutral oil loss. However, removal of these spent adsorbents can be challenging due to their nano-size, and physicochemical properties. The use of these materials combined with E-field technologies offers a novel and sustainable solution for removing spent nano-adsorbents and contaminants. This review provides an overview of current traditional and novel refining technologies for vegetable oils and FAEs, including their associated limitations. Compared to conventional methods, E-field treatment offers several advantages, making it an attractive alternative to conventional approaches in food processing and oil refining.
Collapse
Affiliation(s)
- Li Zhou
- Department of Chemical and Biological Engineering, University of Saskatchewan, Saskatoon, Canada
| | - Timothy J Tse
- Department of Food and Bioproducts Science, University of Saskatchewan, Saskatoon, Canada
| | - Farley Chicilo
- Department of Food and Bioproducts Science, University of Saskatchewan, Saskatoon, Canada
| | - Venkatesh Meda
- Department of Chemical and Biological Engineering, University of Saskatchewan, Saskatoon, Canada
| | - Martin J T Reaney
- Department of Food and Bioproducts Science, University of Saskatchewan, Saskatoon, Canada
- Prairie Tide Diversified Inc, Saskatoon, Canada
- Guangdong Saskatchewan Oilseed Joint Laboratory, Department of Food Science and Engineering, Jinan University, Guangzhou, China
| |
Collapse
|
5
|
Yang RF, Peng YY, Wang YR. Enhancing Hot Air Drying Efficiency through Electrostatic Field-Ultrasonic Coupling Pretreatment. Foods 2023; 12:foods12081727. [PMID: 37107522 PMCID: PMC10137644 DOI: 10.3390/foods12081727] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2023] [Revised: 04/16/2023] [Accepted: 04/17/2023] [Indexed: 04/29/2023] Open
Abstract
The drying of compact and biologically active materials presents significant challenges. In this study, we propose using electrostatic field-ultrasonic coupling pretreatment to enhance the drying efficiency of ginkgo fruits. We designed and constructed an experimental device to investigate the effects of ultrasonic power, pretreatment time, hot air drying temperature, and electrostatic field voltage on the moisture content of the fruits. We used the response surface methodology to identify optimal process conditions and further explored the kinetic model for the moisture content of the fruits under the pretreatment. The results showed that the optimal process parameters for electrostatic-ultrasound pretreatment and the drying of ginkgo fruits were: an electrostatic field voltage of 11.252 kV, an ultrasound power of 590.074 W, a pretreatment time of 32.799 min, and a hot air drying temperature of 85 °C. Under the optimized process conditions, the correlation between the moisture content of ginkgo fruits and the two-term drying kinetics model was the highest. After electrostatic-ultrasound coupling pretreatment, the drying rate of ginkgo fruits was significantly improved during hot air drying.
Collapse
Affiliation(s)
- Ri-Fu Yang
- School of Physics and Optoelectronics, South China University of Technology, Guangzhou 510640, China
| | - Ying-Ying Peng
- School of Physics and Optoelectronics, South China University of Technology, Guangzhou 510640, China
| | - Yu-Rong Wang
- School of Physics and Optoelectronics, South China University of Technology, Guangzhou 510640, China
| |
Collapse
|
6
|
Pophof B, Henschenmacher B, Kattnig DR, Kuhne J, Vian A, Ziegelberger G. Biological Effects of Electric, Magnetic, and Electromagnetic Fields from 0 to 100 MHz on Fauna and Flora: Workshop Report. Health Phys 2023; 124:39-52. [PMID: 36480584 PMCID: PMC9722389 DOI: 10.1097/hp.0000000000001624] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Indexed: 06/17/2023]
Abstract
This report summarizes effects of anthropogenic electric, magnetic, and electromagnetic fields in the frequency range from 0 to 100 MHz on flora and fauna, as presented at an international workshop held on 5-7 November in 2019 in Munich, Germany. Such fields may originate from overhead powerlines, earth or sea cables, and from wireless charging systems. Animals and plants react differentially to anthropogenic fields; the mechanisms underlying these responses are still researched actively. Radical pairs and magnetite are discussed mechanisms of magnetoreception in insects, birds, and mammals. Moreover, several insects as well as marine species possess specialized electroreceptors, and behavioral reactions to anthropogenic fields have been reported. Plants react to experimental modifications of their magnetic environment by growth changes. Strong adverse effects of anthropogenic fields have not been described, but knowledge gaps were identified; further studies, aiming at the identification of the interaction mechanisms and the ecological consequences, are recommended.
Collapse
Affiliation(s)
- Blanka Pophof
- Competence Centre for Electromagnetic Fields, Department of Effects and Risks of Ionizing and Non-Ionizing Radiation, Federal Office for Radiation Protection, 85764 Oberschleißheim, Germany
| | - Bernd Henschenmacher
- Competence Centre for Electromagnetic Fields, Department of Effects and Risks of Ionizing and Non-Ionizing Radiation, Federal Office for Radiation Protection, 85764 Oberschleißheim, Germany
| | - Daniel R. Kattnig
- Department of Physics and Living Systems Institute, University of Exeter, Stocker Road, Exeter, EX4 4QD, United Kingdom
| | - Jens Kuhne
- Competence Centre for Electromagnetic Fields, Department of Effects and Risks of Ionizing and Non-Ionizing Radiation, Federal Office for Radiation Protection, 85764 Oberschleißheim, Germany
| | - Alain Vian
- Univ Angers, Institut Agro, INRAE, IRHS, SFR QUASAV, F-49000 Angers, France
| | - Gunde Ziegelberger
- Competence Centre for Electromagnetic Fields, Department of Effects and Risks of Ionizing and Non-Ionizing Radiation, Federal Office for Radiation Protection, 85764 Oberschleißheim, Germany
| |
Collapse
|
7
|
Zhu J, Zeng Y, Luo Y, Jie Y, Lan F, Yang J, Wang ZL, Cao X. Triboelectric Patch Based on Maxwell Displacement Current for Human Energy Harvesting and Eye Movement Monitoring. ACS Nano 2022; 16:11884-11891. [PMID: 35920687 DOI: 10.1021/acsnano.2c01199] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
The forthcoming wearable health care devices garner considerable attention because of their potential for monitoring, treatment, and protection applications. Herein, a self-powered triboelectric patch was developed using polytetrafluoroethylene rubbed with nylon fabric. The triboelectric patch can maintain a stable electrostatic field, due to the excess electrification on the surface of the triboelectric layer. The designed triboelectric nanogenerator (TENG) output watt density can reach about 485 mW/m2 with added resistance of 11 kΩ. Additionally, the performance of the triboelectric patch allowed eye movement monitoring. The maximum voltage could reach 80 V at the vertical distance of 20 mm between the frictional layer and collector. The triboelectric patch not only can power a digital watch for potential wearable applications but also can be integrated to monitor eye movements during sleep. This work proposed a mechanism for human movement energy harvesting, which may be used for self-powered smart wearable health equipment and Maxwell displacement current wireless sensors.
Collapse
Affiliation(s)
- Jiaqing Zhu
- Research Center for Bioengineering and Sensing Technology, Beijing Key Laboratory for Bioengineering and Sensing Technology, School of Chemistry and Biological Engineering, Beijing Municipal Key Laboratory of New Energy Materials and Technologies, University of Science and Technology Beijing, Beijing 100083, China
- Beijing Institute of Nanoenergy and Nanosystems, Chinese Academy of Sciences, Beijing 101400, China
| | - Yuanming Zeng
- Beijing Institute of Nanoenergy and Nanosystems, Chinese Academy of Sciences, Beijing 101400, China
| | - Yu Luo
- Research Center for Bioengineering and Sensing Technology, Beijing Key Laboratory for Bioengineering and Sensing Technology, School of Chemistry and Biological Engineering, Beijing Municipal Key Laboratory of New Energy Materials and Technologies, University of Science and Technology Beijing, Beijing 100083, China
| | - Yang Jie
- Beijing Institute of Nanoenergy and Nanosystems, Chinese Academy of Sciences, Beijing 101400, China
| | - Feifei Lan
- Beijing Institute of Nanoenergy and Nanosystems, Chinese Academy of Sciences, Beijing 101400, China
| | - Jun Yang
- Shenzhen Institute for Advanced Study, University of Electronic Science and Technology of China, Shenzhen 518000, China
- Research Centre of Information Technology, Shenzhen Institute of Information Technology, Shenzhen 518172, China
| | - Zhong Lin Wang
- Beijing Institute of Nanoenergy and Nanosystems, Chinese Academy of Sciences, Beijing 101400, China
- School of Materials Science and Engineering, Georgia Institute of Technology, Atlanta, Georgia 30332-0245, United States
| | - Xia Cao
- Research Center for Bioengineering and Sensing Technology, Beijing Key Laboratory for Bioengineering and Sensing Technology, School of Chemistry and Biological Engineering, Beijing Municipal Key Laboratory of New Energy Materials and Technologies, University of Science and Technology Beijing, Beijing 100083, China
- Beijing Institute of Nanoenergy and Nanosystems, Chinese Academy of Sciences, Beijing 101400, China
- Shenzhen Institute for Advanced Study, University of Electronic Science and Technology of China, Shenzhen 518000, China
- Research Centre of Information Technology, Shenzhen Institute of Information Technology, Shenzhen 518172, China
- Center on Nanoenergy Research, School of Physical Science & Technology, Guangxi University, Nanning 530004, China
| |
Collapse
|
8
|
Yamashita K, Fujisaka H, Iwasaki H, Kanno K, Hayakawa M. A New Electric Field Mill Network to Estimate Temporal Variation of Simplified Charge Model in an Isolated Thundercloud. Sensors (Basel) 2022; 22:1884. [PMID: 35271031 DOI: 10.3390/s22051884] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/01/2022] [Revised: 02/22/2022] [Accepted: 02/25/2022] [Indexed: 11/21/2022]
Abstract
The gross charge distribution in an electrified cloud has already been estimated by polarity distribution of the electrostatic field on the ground surface. While either a dipole or a tripole charge structure is commonly accepted, the increase–decrease and motion of each point charge in those models are both still unclear. This paper presents a new network of electric field mills for multipoint electrostatic measurement to evaluate the temporal variations of a simple cloud charge model with second-scale resolution. Details of our newly developed equipment are described, with an emphasis on its advantages. This network was deployed in the north Kanto area of Japan and operated during the summer season in 2020. In order to simplify the relationship between cloud charge positions and the horizontal distribution of the measured electrostatic field, an isolated thundercloud is focused on. As an initial analysis, a negative point charge model is applied to an isolated cloud observed on 27 August 2020. The quantity and height of the point charge were estimated as being approximately −20 C and 7 km, respectively. The calculated charge location is generally coincident with the C-band radar echo regions. Significant correspondence is demonstrated between the intensity distribution of the electrostatic fields measured at seven sites and that calculated with estimated point charge. This result indicates the possibility to determine the amounts and positions of cloud charges inside the dipole charge structure based on multipoint measurement of the electrostatic field.
Collapse
|
9
|
Paffhausen BH, Petrasch J, Greggers U, Duer A, Wang Z, Menzel S, Stieber P, Haink K, Geldenhuys M, Čavojská J, Stein TA, Wutke S, Voigt A, Coburn J, Menzel R. The Electronic Bee Spy: Eavesdropping on Honeybee Communication via Electrostatic Field Recordings. Front Behav Neurosci 2021; 15:647224. [PMID: 33994968 PMCID: PMC8115936 DOI: 10.3389/fnbeh.2021.647224] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2020] [Accepted: 04/06/2021] [Indexed: 11/13/2022] Open
Abstract
As a canary in a coalmine warns of dwindling breathable air, the honeybee can indicate the health of an ecosystem. Honeybees are the most important pollinators of fruit-bearing flowers, and share similar ecological niches with many other pollinators; therefore, the health of a honeybee colony can reflect the conditions of a whole ecosystem. The health of a colony may be mirrored in social signals that bees exchange during their sophisticated body movements such as the waggle dance. To observe these changes, we developed an automatic system that records and quantifies social signals under normal beekeeping conditions. Here, we describe the system and report representative cases of normal social behavior in honeybees. Our approach utilizes the fact that honeybee bodies are electrically charged by friction during flight and inside the colony, and thus they emanate characteristic electrostatic fields when they move their bodies. These signals, together with physical measurements inside and outside the colony (temperature, humidity, weight of the hive, and activity at the hive entrance) will allow quantification of normal and detrimental conditions of the whole colony. The information provided instructs how to setup the recording device, how to install it in a normal bee colony, and how to interpret its data.
Collapse
Affiliation(s)
| | - Julian Petrasch
- Department Information Science, Freie Universität Berlin, Berlin, Germany
| | - Uwe Greggers
- Department Biology, Neurobiology, Freie Universität Berlin, Berlin, Germany
| | - Aron Duer
- Department Biology, Neurobiology, Freie Universität Berlin, Berlin, Germany
| | - Zhengwei Wang
- CAS Key Laboratory of Tropical Forest Ecology, Xishuangbanna Tropical Botanical Garden, Chinese Academy of Sciences, Kunming, China
| | - Simon Menzel
- Department Biology, Neurobiology, Freie Universität Berlin, Berlin, Germany
| | - Peter Stieber
- CAS Key Laboratory of Tropical Forest Ecology, Xishuangbanna Tropical Botanical Garden, Chinese Academy of Sciences, Kunming, China
| | - Karén Haink
- Department Biology, Neurobiology, Freie Universität Berlin, Berlin, Germany
| | | | - Jana Čavojská
- Department Information Science, Freie Universität Berlin, Berlin, Germany
| | - Timo A Stein
- Complex and Distributed IT Systems, Technische Universtät Berlin, Berlin, Germany
| | - Sophia Wutke
- Department Biology, Neurobiology, Freie Universität Berlin, Berlin, Germany
| | - Anja Voigt
- Department Biology, Neurobiology, Freie Universität Berlin, Berlin, Germany
| | - Josephine Coburn
- Department Biology, Neurobiology, Freie Universität Berlin, Berlin, Germany
| | - Randolf Menzel
- Department Biology, Neurobiology, Freie Universität Berlin, Berlin, Germany
| |
Collapse
|
10
|
Gabovich AM, Voitenko AI. Orientation of adsorbed polar molecules (dipoles) in external electrostatic field. J Phys Condens Matter 2020; 33:035004. [PMID: 33094735 DOI: 10.1088/1361-648x/abb997] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/23/2020] [Accepted: 09/17/2020] [Indexed: 06/11/2023]
Abstract
A model is proposed in the framework of classical electrostatics to describe the behavior of an adsorbed polar molecule near the plane interface between two insulators under the action of an external electrostatic field. The molecule is considered as a permanent point dipole that polarizes the interface and interacts with it through electrostatic image forces. The latter and the applied field try to reorient the dipole in a competitive manner. The system behavior turns out to be rather complicated: it may show a bistable character with a hysteresis (a switch). Such a switch can serve as an element in a memory network made of adsorbed molecules.
Collapse
Affiliation(s)
- A M Gabovich
- Institute of Physics, 46 Nauky Ave., Kyiv 03028, Ukraine
| | - A I Voitenko
- Institute of Physics, 46 Nauky Ave., Kyiv 03028, Ukraine
| |
Collapse
|
11
|
Zhang X, Huang H, Yao X, Li Z, Zhou C, Zhang X, Chen P, Fu L, Zhou X, Wang J, Hu W, Lu W, Zou J, Tan HH, Jagadish C. Ultrasensitive Mid-wavelength Infrared Photodetection Based on a Single InAs Nanowire. ACS Nano 2019; 13:3492-3499. [PMID: 30817125 DOI: 10.1021/acsnano.8b09649] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
One-dimensional InAs nanowire (NW)-based photodetectors have been widely studied due to their potential application in mid-wavelength infrared (MWIR) photon detection. However, the limited performance and complicated photoresponse mechanism of InAs NW-based photodetectors have held back their true potential for real application. In this study, we developed ferroelectric polymer P(VDF-TrFE)-coated InAs NW-based photodetectors and demonstrated that the electrostatic field caused by polarized ferroelectric materials modifies the surface electron-hole distribution as well as the band structure of InAs NWs, resulting in ultrasensitive photoresponse and a wide photodetection spectral range. Our single InAs NW photodetectors exhibit a high responsivity ( R) of 1.6 × 104 A W-1 as well as a corresponding detectivity ( D*) of 1.4 × 1012 cm·Hz1/2 W-1 at a light wavelength of 3.5 μm without an applied gate voltage, ∼3-4 orders higher than the maximum value of photoresponsivity reported or commercially used MWIR photodetectors. Moreover, our device shows below band gap photoresponse for 4.3 μm MWIR light with R of 9.6 × 102 A W-1 as well as a corresponding D* of ∼8.5 × 1010 cm·Hz1/2 W-1 at 77 K. Our study shows that this approach is promising for fabrication of high-performance NW-based photodetectors for MWIR photon detection.
Collapse
Affiliation(s)
- Xutao Zhang
- State Key Laboratory for Infrared Physics , Shanghai Institute of Technical Physics , Chinese Academy of Sciences, 500 Yutian Road , Shanghai 200083 , China
- University of Chinese Academy of Sciences , 19 Yuquan Road , Beijing 100049 , China
- Department of Electronic Materials Engineering, Research School of Physics and Engineering , The Australian National University , Canberra , ACT 2601 , Australia
| | - Hai Huang
- State Key Laboratory for Infrared Physics , Shanghai Institute of Technical Physics , Chinese Academy of Sciences, 500 Yutian Road , Shanghai 200083 , China
- University of Chinese Academy of Sciences , 19 Yuquan Road , Beijing 100049 , China
| | - Xiaomei Yao
- State Key Laboratory for Infrared Physics , Shanghai Institute of Technical Physics , Chinese Academy of Sciences, 500 Yutian Road , Shanghai 200083 , China
- University of Chinese Academy of Sciences , 19 Yuquan Road , Beijing 100049 , China
| | - Ziyuan Li
- Department of Electronic Materials Engineering, Research School of Physics and Engineering , The Australian National University , Canberra , ACT 2601 , Australia
| | | | - Xu Zhang
- Department of Electronic Materials Engineering, Research School of Physics and Engineering , The Australian National University , Canberra , ACT 2601 , Australia
- School of Information Engineering , Zhengzhou University , Zhengzhou 450052 , China
| | - Pingping Chen
- State Key Laboratory for Infrared Physics , Shanghai Institute of Technical Physics , Chinese Academy of Sciences, 500 Yutian Road , Shanghai 200083 , China
| | - Lan Fu
- Department of Electronic Materials Engineering, Research School of Physics and Engineering , The Australian National University , Canberra , ACT 2601 , Australia
| | - Xiaohao Zhou
- State Key Laboratory for Infrared Physics , Shanghai Institute of Technical Physics , Chinese Academy of Sciences, 500 Yutian Road , Shanghai 200083 , China
| | - Jianlu Wang
- State Key Laboratory for Infrared Physics , Shanghai Institute of Technical Physics , Chinese Academy of Sciences, 500 Yutian Road , Shanghai 200083 , China
| | - Weida Hu
- State Key Laboratory for Infrared Physics , Shanghai Institute of Technical Physics , Chinese Academy of Sciences, 500 Yutian Road , Shanghai 200083 , China
| | - Wei Lu
- State Key Laboratory for Infrared Physics , Shanghai Institute of Technical Physics , Chinese Academy of Sciences, 500 Yutian Road , Shanghai 200083 , China
| | | | - Hark Hoe Tan
- Department of Electronic Materials Engineering, Research School of Physics and Engineering , The Australian National University , Canberra , ACT 2601 , Australia
| | - Chennupati Jagadish
- Department of Electronic Materials Engineering, Research School of Physics and Engineering , The Australian National University , Canberra , ACT 2601 , Australia
| |
Collapse
|
12
|
Elshobaki M, Gebhardt R, Carr J, Lindemann W, Wang W, Grieser E, Venkatesan S, Ngo E, Bhattacharjee U, Strzalka J, Jiang Z, Qiao Q, Petrich J, Vaknin D, Chaudhary S. Tailoring Nanoscale Morphology of Polymer:Fullerene Blends Using Electrostatic Field. ACS Appl Mater Interfaces 2017; 9:2678-2685. [PMID: 27982563 DOI: 10.1021/acsami.6b10870] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
To tailor the nanomorphology in polymer/fullerene blends, we study the effect of electrostatic field (E-field) on the solidification of poly(3-hexylthiophene-2, 5-diyl) (P3HT):[6,6]-phenyl-C61-butyric acid methyl ester (PC60BM) bulk heterojunction (BHJ). In addition to control; wet P3HT:PC60BM thin films were exposed to E-field of Van de Graaff (VDG) generator at three different directions-horizontal (H), tilted (T), and vertical (V)-relative to the plane of the substrate. Surface and bulk characterizations of the field-treated BHJs affirmed that fullerene molecules can easily penetrate the spaghetti-like P3HT and move up and down following the E-field. Using E-field treatment, we achieved favorable morphologies with efficient charge separation, transport, and collection. We improve; (1) the hole mobility values up to 19.4 × 10-4 ± 1.6 × 10-4 cm2 V-1 s-1 and (2) the power conversion efficiency (PCE) of conventional and inverted OPVs up to 2.58 ± 0.02% and 4.1 ± 0.40%, respectively. This E-field approach can serve as a new morphology-tuning technique, which is generally applicable to other polymer-fullerene systems.
Collapse
Affiliation(s)
| | | | | | | | - Wenjie Wang
- Ames Laboratory, U.S. Department of Energy , Ames, Iowa 50011-3111, United States
| | | | - Swaminathan Venkatesan
- Department of Electrical Engineering, South Dakota State University , Brookings, South Dakota 57007, United States
| | - Evan Ngo
- Department of Electrical Engineering, South Dakota State University , Brookings, South Dakota 57007, United States
| | | | - Joseph Strzalka
- X-ray Science Division, Argonne National Laboratory , Argonne, Illinois 60439, United States
| | - Zhang Jiang
- X-ray Science Division, Argonne National Laboratory , Argonne, Illinois 60439, United States
| | - Qiquan Qiao
- Department of Electrical Engineering, South Dakota State University , Brookings, South Dakota 57007, United States
| | | | - David Vaknin
- Ames Laboratory, U.S. Department of Energy , Ames, Iowa 50011-3111, United States
| | | |
Collapse
|
13
|
Harutyunyan H, Mkrtchyan V, Sukiasyan K, Sahakyan G, Poghosyan G, Soghomonyan A, Cherniavsky E, Bondarenko E, Shkumatov V. Effect of in vivo and in vitro exposure to electrostatic field on some hematological parameters in rats. Bioelectromagnetics 2016; 37:513-526. [PMID: 27530776 DOI: 10.1002/bem.22000] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2015] [Accepted: 07/27/2016] [Indexed: 11/05/2022]
Abstract
The aim of this study was to investigate the effect of the external electrostatic field (ESF) on some hematological parameters in rats. Both in vivo and in vitro experiments were carried out. In in vivo investigations, rats were exposed to ESF (200 kV/m) during short (1 h) and long periods (6 days, 6 h daily). For in vitro study, the blood of intact rats was exposed to ESF for 1 h. Blood hematology was measured using validated ABX Micros ESV 60 Veterinary Hematology Analyzer. DNA damage in blood leucocytes was detected by means of comet assay. ESF effect on blood cell count was mainly manifested in white blood cells (WBC) and platelets. Damage of WBC was shown both in vitro and in vivo despite alterations in the count. This means the observed increase in WBC count in some cases might be a result of WBC compensatory mobilization from the bone marrow. Red blood cell (RBC) count and related parameters were slightly affected by ESF. Nevertheless, alterations in the shape and size of RBC were manifested. All ESF effects were extinguished in 14 days after the end of exposure. Bioelectromagnetics. 37:513-526, 2016. © 2016 Wiley Periodicals, Inc.
Collapse
Affiliation(s)
- Hayk Harutyunyan
- Laboratory of Biochemical and Biophysical Investigations, Scientific-Research Centre, Yerevan State Medical University After Mkhitar Heratsi, Yerevan, Republic of Armenia.,Laboratory of Adenyline Compaunds Metabolism, H. Buniatian Institute of Biochemistry, National Academy of Sciences of Republic of Armenia, Yerevan, Republic of Armenia
| | - Vahe Mkrtchyan
- Chair of Therapy Clinical Diagnostics and Pharmacology, Faculty of Veterinary Medicine and Animal Husbandry, Armenian National Agrarian University, Yerevan, Republic of Armenia
| | - Karine Sukiasyan
- Chair of Therapy Clinical Diagnostics and Pharmacology, Faculty of Veterinary Medicine and Animal Husbandry, Armenian National Agrarian University, Yerevan, Republic of Armenia
| | - Gohar Sahakyan
- Laboratory of Biochemical and Biophysical Investigations, Scientific-Research Centre, Yerevan State Medical University After Mkhitar Heratsi, Yerevan, Republic of Armenia
| | - Gayane Poghosyan
- Laboratory of Biochemical and Biophysical Investigations, Scientific-Research Centre, Yerevan State Medical University After Mkhitar Heratsi, Yerevan, Republic of Armenia
| | - Ani Soghomonyan
- Laboratory of Biochemical and Biophysical Investigations, Scientific-Research Centre, Yerevan State Medical University After Mkhitar Heratsi, Yerevan, Republic of Armenia
| | - Eugene Cherniavsky
- Laboratory of Biochemistry of Drugs, Research Institute for Physical Chemical Problems, Belarusian State University, Minsk, Republic of Belarus
| | - Ekaterina Bondarenko
- Laboratory of Biochemistry of Drugs, Research Institute for Physical Chemical Problems, Belarusian State University, Minsk, Republic of Belarus
| | - Vladimir Shkumatov
- Laboratory of Biochemistry of Drugs, Research Institute for Physical Chemical Problems, Belarusian State University, Minsk, Republic of Belarus
| |
Collapse
|
14
|
Abstract
A large fraction of proteins function as homodimers, but it is not always clear why the dimerization is important for functionality since frequently each monomer possesses a distinctive active site. Recent work (PLoS Computational Biology, 9(2), e1002924) indicates that homodimerization may be important for forming an electrostatic funnel in the spermine synthase homodimer which guides changed substrates toward the active centers. This prompted us to investigate the electrostatic properties of a large set of homodimeric proteins and resulted in an observation that in a vast majority of the cases the dimerization indeed results in specific electrostatic features, although not necessarily in an electrostatic funnel. It is demonstrated that the electrostatic dipole moment of the dimer is predominantly perpendicular to the axis connecting the centers of the mass of the monomers. In addition, the surface points with highest potential are located in the proximity of the interfacial plane of the homodimeric complexes. These findings indicate that frequently homodimerization provides specific electrostatic features needed for the function of proteins.
Collapse
Affiliation(s)
- Brandon Campbell
- Computational Biophysics and Bioinformatics, Department of Physics, Clemson University, Clemson, SC 29634
| | - Marharyta Petukh
- Computational Biophysics and Bioinformatics, Department of Physics, Clemson University, Clemson, SC 29634
| | - Emil Alexov
- Computational Biophysics and Bioinformatics, Department of Physics, Clemson University, Clemson, SC 29634
| | - Chuan Li
- Computational Biophysics and Bioinformatics, Department of Physics, Clemson University, Clemson, SC 29634
| |
Collapse
|