Nature uses proteins for a variety of functions, and among all others, their ability to form high-hierarchical structures as well as to mediate charges. We are inspired by these functions of proteins in nature and utilize proteins for the formation of large-scale conductive materials. We report here on a new family of conductive biopolymers using only sustainable and abundant proteins. We show that our new biopolymers have superior mechanical properties and ionic conductivity, which is due to their high water uptake and the presence of oxo-amino-acids. We further show that our biopolymers can be easily functionalized in different ways, thus enhancing their ionic conductivity, enabling electron conduction, and introducing optoelectronic properties. We currently use our polymers for making new biosensors. These polymers are environmentally friendly, biodegradable, biocompatible, and low-cost, and we foresee their integration in numerous applications from biomedical to energy applications
{"title":"Bioderived electronics: utilizing proteins for making large scale assemblies exhibiting superior electronic and optoelectronic properties","authors":"N. Amdursky","doi":"10.1117/12.2595003","DOIUrl":"https://doi.org/10.1117/12.2595003","url":null,"abstract":"Nature uses proteins for a variety of functions, and among all others, their ability to form high-hierarchical structures as well as to mediate charges. We are inspired by these functions of proteins in nature and utilize proteins for the formation of large-scale conductive materials. We report here on a new family of conductive biopolymers using only sustainable and abundant proteins. We show that our new biopolymers have superior mechanical properties and ionic conductivity, which is due to their high water uptake and the presence of oxo-amino-acids. We further show that our biopolymers can be easily functionalized in different ways, thus enhancing their ionic conductivity, enabling electron conduction, and introducing optoelectronic properties. We currently use our polymers for making new biosensors. These polymers are environmentally friendly, biodegradable, biocompatible, and low-cost, and we foresee their integration in numerous applications from biomedical to energy applications","PeriodicalId":295051,"journal":{"name":"Organic and Hybrid Sensors and Bioelectronics XIV","volume":"29 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125869055","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"The development of OLEDs for photodynamic therapy","authors":"I. Samuel","doi":"10.1117/12.2596476","DOIUrl":"https://doi.org/10.1117/12.2596476","url":null,"abstract":"","PeriodicalId":295051,"journal":{"name":"Organic and Hybrid Sensors and Bioelectronics XIV","volume":"73 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134618756","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Hybrid perovskite materials are attractive for detection of X-ray and gamma-ray in both direct and indirect ways. The high stopping power of perovskites as well as excellent charge transport properties enables direct detection of single photon gamma ray in photon counting mode. The strong absorption of UV-vis light by most hybrid perovskites also enable very sensitive photodetectors which can count the emitted photons from scintillators under radiation. In addition, many perovskite compositions are also explored for scintillator applications. I am going to review the progress made at UNC on these three main research directions.
{"title":"Perovskites for x-ray detection","authors":"Jinsong Huang","doi":"10.1117/12.2595836","DOIUrl":"https://doi.org/10.1117/12.2595836","url":null,"abstract":"Hybrid perovskite materials are attractive for detection of X-ray and gamma-ray in both direct and indirect ways. The high stopping power of perovskites as well as excellent charge transport properties enables direct detection of single photon gamma ray in photon counting mode. The strong absorption of UV-vis light by most hybrid perovskites also enable very sensitive photodetectors which can count the emitted photons from scintillators under radiation. In addition, many perovskite compositions are also explored for scintillator applications. I am going to review the progress made at UNC on these three main research directions.","PeriodicalId":295051,"journal":{"name":"Organic and Hybrid Sensors and Bioelectronics XIV","volume":"44 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128506460","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
G. Farinola, Gabriella Buscemi, R. Labarile, R. Ragni, F. Milano, D. Vona, M. Trotta
Photosynthetic microorganisms and their Reaction Center (RC) photoenzymes can be used as active materials for bio-optoelectronic applications. Here we report approaches to interface RC molecules extracted from Rhodobacter sphaeroides with electrodes aiming to integrate the RC in electronic and electrochemical devices. Covalent binding with molecular semiconductors or supramolecular organization based on selective interactions have been explored. Alternatively, entrapment of the RC in biocompatible polymers is a convenient approach. These soft structures include polydopamine-based films or polydopamine/ethylenediamine nanoparticles capable of confining and protecting the RC, while improving RC-electrode charge transfer. We also describe the use of these polymers to address living photosynthetic bacterial cells on electrodes.
{"title":"Interfacing photosynthetic enzymes and bacteria with electrodes for bio-optoelectronic devices","authors":"G. Farinola, Gabriella Buscemi, R. Labarile, R. Ragni, F. Milano, D. Vona, M. Trotta","doi":"10.1117/12.2594162","DOIUrl":"https://doi.org/10.1117/12.2594162","url":null,"abstract":"Photosynthetic microorganisms and their Reaction Center (RC) photoenzymes can be used as active materials for bio-optoelectronic applications. Here we report approaches to interface RC molecules extracted from Rhodobacter sphaeroides with electrodes aiming to integrate the RC in electronic and electrochemical devices. Covalent binding with molecular semiconductors or supramolecular organization based on selective interactions have been explored. Alternatively, entrapment of the RC in biocompatible polymers is a convenient approach. These soft structures include polydopamine-based films or polydopamine/ethylenediamine nanoparticles capable of confining and protecting the RC, while improving RC-electrode charge transfer. We also describe the use of these polymers to address living photosynthetic bacterial cells on electrodes.","PeriodicalId":295051,"journal":{"name":"Organic and Hybrid Sensors and Bioelectronics XIV","volume":"12 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134598610","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Conjugated polymers provide a unique toolbox for establishing electrical communication with biological systems. In the first half of this talk, I will introduce the type of conjugated polymers used at the biological interface. I will then show how we designed organic electrochemical transistors (OECTs) for protein detection at the physical limit and challenged them using COVID-19 patient samples, marking a considerable step toward biochemical sensing. I will discuss that advances in bioelectronic device designs do not appear by chance but stem from in-depth investigations of the active materials' transport properties, understanding of device operation, and enhancing materials’ compatibility with biorecognition units.
{"title":"Organic electrochemical transistors for biosensing","authors":"S. Inal","doi":"10.1117/12.2595771","DOIUrl":"https://doi.org/10.1117/12.2595771","url":null,"abstract":"Conjugated polymers provide a unique toolbox for establishing electrical communication with biological systems. In the first half of this talk, I will introduce the type of conjugated polymers used at the biological interface. I will then show how we designed organic electrochemical transistors (OECTs) for protein detection at the physical limit and challenged them using COVID-19 patient samples, marking a considerable step toward biochemical sensing. I will discuss that advances in bioelectronic device designs do not appear by chance but stem from in-depth investigations of the active materials' transport properties, understanding of device operation, and enhancing materials’ compatibility with biorecognition units.","PeriodicalId":295051,"journal":{"name":"Organic and Hybrid Sensors and Bioelectronics XIV","volume":"26 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116454625","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
In this presentation, we report an ultraflexible magnetic sensor matrix system comprising a 2 × 4 array of magnetoresistance sensors, a bootstrap organic shift register driving the matrix, and organic voltage amplifiers integrated within a 3-µm-thick polymer substrate. The system demonstrates high magnetic sensitivity owing to the use of organic amplifiers. Moreover, the shift register enabled real-time mapping of 2D magnetic field distribution. These ultraflexible magnetic sensor systems integrated with organic multifunctional circuits are suitable for use in position control systems used in applications such as soft robots, wearable electronics, and smart textiles.
{"title":"Ultraflexible magnetic sensor system integrated with organic multifunctional circuits","authors":"T. Uemura, T. Sekitani","doi":"10.1117/12.2595004","DOIUrl":"https://doi.org/10.1117/12.2595004","url":null,"abstract":"In this presentation, we report an ultraflexible magnetic sensor matrix system comprising a 2 × 4 array of magnetoresistance sensors, a bootstrap organic shift register driving the matrix, and organic voltage amplifiers integrated within a 3-µm-thick polymer substrate. The system demonstrates high magnetic sensitivity owing to the use of organic amplifiers. Moreover, the shift register enabled real-time mapping of 2D magnetic field distribution. These ultraflexible magnetic sensor systems integrated with organic multifunctional circuits are suitable for use in position control systems used in applications such as soft robots, wearable electronics, and smart textiles.","PeriodicalId":295051,"journal":{"name":"Organic and Hybrid Sensors and Bioelectronics XIV","volume":"27 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122075087","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
京公网安备 11010802042870号
京ICP备2023020795号-1
扫码关注我们
求助内容：
应助结果提醒方式：