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Fully implantable and battery-free wireless optoelectronic system for modulable cancer therapy and real-time monitoring

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npj Flexible Electronics 2023年第1期7卷 119-130页

作者： Kiho Kim In Sik Min Tae Hee Kim do Hyeon Kim Seungwon Hwang Kyowon Kang Kyubeen Kim Sangun Park Jongmin Lee Young Uk Cho Jung Woo Lee Woon-Hong Yeo Young Min Song Youngmee Jung Ki Jun Yu Functional Bio-integrated Electronics and Energy Management Lab School of Electrical and Electronic EngineeringYonsei University50 Yonsei-roSeodaemun-guSeoul 03722Republic of Korea Center for Biomaterials Biomedical Research InstituteKorea Institute of Science and Technology(KIST)Seoul 02792Republic of Korea Department of Fusion Research and Collaboration Biomedical Research InstituteSeoul National University HospitalSeoul 03080Republic of Korea School of Electrical Engineering and Computer Science(EECS) Gwangju Institute of Science and Technology(GIST)Gwangju 61005Republic of Korea PA1 Foundry BusinessSamsung Electronics1 Samsungjeonja-roHwaseong-siGyeonggi-doRepublic of Korea R&D Center DNA Lab PharmaresearchSeongnam 13486Republic of Korea KU-KIST Graduate School of Converging Science and Technology Korea UniversitySeoul 136-705Republic of Korea School of Materials Science and Engineering Energy Materials for Soft Electronics LaboratoryPusan National UniversityBusan 46241Republic of Korea IEN Center for Human-Centric Interfaces and Engineering and George W.Woodruff School of Mechanical Engineering Georgia Institute of TechnologyAtlantaGA 30332USA Wallace H.Coulter Department of Biomedical Engineering Georgia Institute of Technology and Emory University School of MedicineAtlantaGA 30332USA Institute for Robotics and Intelligent Machines Parker H.Petit Institute for Bioengineering and BiosciencesInstitute for MaterialsNeural Engineering CenterGeorgia Institute of TechnologyAtlantaGA 30332USA School of Electrical and Electronic Engineering YU-Korea Institute of Science and Technology(KIST)InstituteYonsei University50Yonsei-roSeodaemun-guSeoul 03722Republic of Korea

Photodynamic therapy(PdT)is attracting attention as a next-generation cancer treatment that can selectively destroy malignant tissues,exhibit fewer side effects,and lack pain during *** PdT systems have recently been developed to resolve the issues of bulky and expensive conventional PdT systems and to implement continuous and repetitive *** implantable PdT systems,however,are not able to perform multiple functions simultaneously,such as modulating light intensity,measuring,and transmitting tumor-related data,resulting in the complexity of cancer ***,we introduce a flexible and fully implantable wireless optoelectronic system capable of continuous and effective cancer treatment by fusing PdT and hyperthermia and enabling tumor size monitoring in *** system exploits micro inorganic light-emitting diodes(μ-LEd)that emit light with a wavelength of 624 nm,designed not to affect surrounding normal tissues by utilizing a fully programmable light intensity ofμ-LEd and precisely monitoring the tumor size by Si phototransistor during a long-term implantation(2–3 weeks).The superiority of simultaneous cancer treatment and tumor size monitoring capabilities of our system operated by wireless power and data transmissions with a cell phone was confirmed through in vitro experiments,ray-tracing simulation results,and a tumor xenograft mouse model in *** all-in-one single system for cancer treatment offers opportunities to not only enable effective treatment of tumors located deep in the tissue but also enable precise and continuous monitoring of tumor size in real-time.

关键词： optoelectronic enable battery

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Organic redox flow battery: Are organic redox materials suited to aqueous solvents or organic solvents?

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Journal of Power Sources 2023年 558卷

作者： ramar, Alagar Wang, Fu-Ming Foeng, ruben Hsing, rocan Graduate Institute of Applied Science and Technology National Taiwan University of Science and Technology No.43 Sec. 4 Keelung Road Taipei106 Taiwan R&D Center for Membrane Technology Chung Yuan Christian University Taoyuan Taiwan Sustainable Energy Center National Taiwan University of Science and Technology Taipei Taiwan Department of Chemical Engineering Chung Yuan Christian University Taoyuan Taiwan

redox flow battery (rFB) systems have been developed to meet both the high-capacity energy storage demands and the safety concerns associated with the commonly used lithium ion batteries (LIBs). After the successful commercialization of vanadium redox flow battery, it has been integrated into other redox systems, both organic and inorganic. The redox behaviour of organic molecules could be fine-tuned by functionalizing with suitable electron donating and withdrawing groups. Hence, organic redox materials became the prime focus for the electrochemical energy researchers and their sustainability in organic and aqueous solvents were systematically examined. This review focuses on the development made in the key aspects of solubility, redox potential, multi-electron redox centres, cross-over issue and stability, both in aqueous and organic mediums. Some of new interesting ideas such as single molecule redox targeting reactions, eutectic mixture, bipolar redox molecules and symmetric flow battery were also discussed. With the developments made, we present our viewpoint on which renewable energy storage technology is suitable for sustainable energy storage. © 2023 Elsevier B.V.

关键词： Electrolytes

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membrane Biofouling Mitigation Via Immobilizing Agnps@Zif-8 Microcapsules on membrane Surface for Extractive membrane Bioreactor

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SSrN 2023年

作者： Wang, Bingxin Tian, Yuxiao Yang, Tingting Yuan, Guoyu Liao, Xiangjun Liao, Yuan You, Xiaofei Sino-Canadian Joint R&D Center for Water and Environmental Safety College of Environmental Science and Engineering Nankai University No. 38 Tongyan Road Jinnan District Tianjin300350 China Singapore Membrane Technology Centre Nanyang Environment and Water Research Institute Nanyang Technological University 1 Cleantech Loop Singapore637141 Singapore

during the extractive membrane bioreactor (EMBr) process, the membrane mass transfer efficient would be significantly reduced due to the biofilm aggregation on the membrane surface. In order to mitigate the membrane biofouling, the microcapsules developed by encapsulating silver nanoparticles (AgNPs) into the zeolitic imidazolate framework-8 (ZIF-8), were immobilized on the membrane surface for the first time. The AgNPs@ZIF-8 microcapsules could ensure the well compatibility between the micromaterials and membrane surface, avoid direct exposure of AgNPs to biomass, as well as slowly release the silver ions into the bioreactor. Compared to the unmodified membrane #M0 (declined to 55% of its initial value) and ZIF-8 modified membrane #M1 (declined to 80% of its initial value), the AgNPs@ZIF-8 microcapsules-coated membrane #M2 displayed the best anti-biofouling performance with a stabilized phenol mass transfer coefficient of 31.04 × 10–7 m/s (96% of its initial value) after 14-days EMBr testing. Its excellent anti-biofouling property should be attributed to the electrostatic repulsion between membrane surface and microorganisms, antibacterial effects from ZIF-8, improved phenol affinity of the membrane, reduced membrane hydrophobicity, stable released silver ions, broad-spectrum bactericidal properties of the silver ions and reactive oxygen species. © 2023, The Authors. All rights reserved.

关键词： Silver nanoparticles

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Pivotal role of Boron-doped Graphene Quantum dots in Stretchable and Self-Healable red Emission Nanocomposite Film: One Step Advance for White Light Emitting diodes Application

SSRN

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SSrN 2023年

作者： Hsu, Chen-Chu Laysandra, Livy Chiu, Yu-Cheng Liu, Wei-ren Department of Chemical Engineering R&D Center for Membrane Technology Center for Circular Economy Chung Yuan Christian University 200 Chung Pei Road Chung Li District Taoyuan City32023 Taiwan Department of Chemical Engineering National Taiwan University of Science and Technology No. 43 Section 4 Keelung Rd Da'an District Taipei City106335 Taiwan

Highlights• The BGQds were synthesized by a hydrothermal method derived from 1,3,6-Trinitropyrene (TNP) and boric acid.• BGQds demonstrate exceptional luminescence stability and excitation-independent PL, exhibiting bright red-emission for excited at 603 nm.• The stretchable and self-healing red-emission nanocomposite films were prepared by incorporating BGQds into PBA0.8-co-PNMA0.2 amphiphilic copolymer via a blending process.• BGQds serve as external H-bond cross-linkers leading to an improvement in interrelated-material performances through the synergistic effect of dynamic hydrogen bonds.• The combination of red-emission nanocomposite film and (Ba,Sr)2SiO4:Eu2+ phosphor produces WLEds with an impressive CrI value of up to 89.4. © 2023, The Authors. All rights reserved.

关键词： Nanocomposites

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The Improved Sparger Enhances Bioleaching of Arsenic-Bearing Gold Concentrate in a Stirred Tank

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SSrN 2025年

作者： Lei, Zheng Jiayu, Xin Changliu, He Aijun, Zhang ranting, Tao Xu, Zhang Beijing Key Lab of Bioprocess National Energy R&D Center for Biorefinery College of Life Science and Technology Beijing University of Chemical Technology Beijing China College of Mechanical and Electrical Engineering Beijing University of Chemical Technology Beijing China Analysis and Test Center Beijing University of Chemical Technology Beijing China

Bioleaching is often used for low-grade ores, mixed-strain leaching can be affected by factors like temperature and substrates. This research compared the coorperative leaching effects of mesophilic and thermophilic strains, including Leptospirillum ferrooxidans(L.f), Acidithiobacillus caldus(A.c), and Sulfobacillus thermosulfidooxidans(S.t). An efficient strain combination of (L.f+A.c): S.t = 1:1 was determined and large-scale fermenter experiments were conducted to optimize parameters. Subsequently, the original sparger was replaced with a nano-aeration pipe(NAP) to investigate its impact on dissolved oxygen and leaching effect. The arsenic leaching rates of different spargers were compared. The results showed that NAP significantly increased the OUr and kLa of the microorganisms in the reaction system. From the experimental results, the leaching efficiency was increased by 3.61% and the daily energy consumption was reduced by 1.59%. Comparing the dissolved oxygen levels, it was found that the dissolved oxygen content of NAP remained stable, while that of the original sparger showed a significant decrease in the early stage. On the 8th day of leaching, the dissolved oxygen level of the improved sparger was 2.87% higher than that of the original sparger. Scanning electron microscopy also confirmed that NAP enhanced microbial leaching. This study not only improves leaching efficiency and demonstrates certain economic value but also provides a new perspective for the optimization of stirred-tank technology in bioleaching. © 2025, The Authors. All rights reserved.

关键词： Gold deposits

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pH dependent biocompatible room temperature covalent organic polymers for selective chemotherapeutic drug delivery

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Microporous and Mesoporous Materials 2024年 365卷

作者： Thankachan, darieo Anbazhagan, rajeshkumar Tsai, Hsieh Chih Van Thi Thuy, dinh Gebrie, Hailemichael Tegenu Chen, Kuan-Ju Chen, Wei-Liang Chen, Jem-Kun Department of Materials and Science Engineering National Taiwan University of Science and Technology 43 Sec. 4 Keelung Road Taipei106 Taiwan Graduate Institute of Applied Science and Technology National Taiwan University of Science and Technology Taipei106 Taiwan R&D Centre for Membrane Technology Chung Yuan University Taoyuan320 Taiwan Division of Gastroenterology and Hepatology Department of Internal Medicine Chung Shan Medical University Hospital Taichung City402 Taiwan Department of Chemistry College of Natural and Computational Sciences University of Gondar P.O. Box 196 Gondar Ethiopia

Covalent organic polymers (COP) are a special class of two-dimensional and three-dimensional cross-linked polymeric networks with repeating organic units. They are ideally suited for drug delivery applications because of their large surface area, porous nature, and tunable properties. Furan-2,5-dicarbohydrazide and 1,3,5-triformylbenzene were used to synthesize pH-responsive hydrazone-linked furan-based spherical COP(FrT-COP) at room temperature. The formulated FrT-COP were later stabilized using hyaluronic acid (HA) and then encapsulated anticancer drug doxorubicin (dOX), utilizing the porous structure of the synthesized COP. The newly developed FrT-COP have a pore size of 10 nm, and FrT-COP-dOX-HA exhibit drug loading capacity of 34.4 % and an encapsulation efficiency of 52.32 %. The 80 % viability of NIH 3T3 cells and 82.1 % viability of the CT2A cells, even at a higher concentration of 100 μg/mL of the carrier system, proves the outstanding biocompatibility of the carrier system for chemotherapeutic drug delivery administration. The FrT-COP-dOX-HA-treated NIH-3T3 normal cell line exhibits a viability of 80.59 % at a material concentration of 25 μg/mL. Furthermore, CT2A cancer cell lines show a viability of 33.1 % at a material concentration of 25 μg/mL. The in vivo results obtained from the experiments performed on male BALB/c nude mice also unequivocally demonstrated the exceptional suitability of the proposed drug delivery carrier system for antitumor chemotherapeutic drug administration. © 2023 Elsevier Inc.

关键词： Hyaluronic acid

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Experimental Investigation of the Nullifier-Based Monopole

Experimental Investigation of the Nullifier-Based Monopole

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European Conference on Antennas and Propagation, EuCAP

作者： B. Ohana d. Wolfshtein Z. Menachem M. Haridim Esmailzadeh Lab. Merchavim Institute of R&D in Negev Israel School of Brain Science and Cognition Ben Gurion University of the Negev Beer Sheva Israel Department of EE SCE- Sami Shamoon College of Engineering Beer Sheva Israel Faculty of EE Holon Institute of Technology Holon Israel

In this paper, the feasibility and the radiation properties of the nullifier-based monopole is studied and analyzed. Simulation and experimental results for two versions of this antenna are presented. The results partially confirm the feasibility of such antennas. The radiation properties of such antennas depend on the orientation of the nullifier circuit. Further studies are needed to explore the full potential of the proposed antenna.

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Exploring the Impact of Surface Oxygen Vacancies on Charge Carrier dynamics in Bivo4 Photoanodes Through Atmospheric Pressure Plasma Jet Post-Treatment for Efficiency Improvement in Photoelectrochemical Water Oxidation

SSRN

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SSrN 2023年

作者： Tsai, Kai-An Lai, Chien-Chih Chen, Yu-Hung Leu, Ing-Chi Chang, Jui-Cheng Kuo, Che-Yu Tseng, Shih-Wen Li, Yan Pu, Ying-Chih Department of Materials Science National University of Tainan Tainan700301 Taiwan School of Medicine College of Medicine National Cheng Kung University Tainan70101 Taiwan Department of Chemical Engineering and R&D Center for Membrane Technology Chung Yuan Christian University Taoyuan320314 Taiwan Core Facility Center of National Cheng Kung University Tainan70101 Taiwan School of Materials Science and Engineering University of Science and Technology Beijing Beijing100083 China

We have demonstrated the production of high-density surface oxygen vacancy (ovs) in BiVO4 (BVO) photoanodes through the post-treatment of an atmospheric pressure plasma jet (APPJ). The 3.4-fold enhancement of photocurrent density of BVO photoanodes at 1.23 VrHE for photoelectrochemical (PEC) water oxidation due to 95% of charge transfer efficiency at the BVO/electrolyte interface. In-situ transient absorption spectroscopy investigations provided insights into the charge carrier dynamics of the APPJ-treated BVO photoanode, revealing that abundant electrons could effectively be trapped in the ovs states to prevent charge carrier recombination. NiOOH/FeOOH oxygen evolution co-catalyst was further decorated on the APPJ-treated BVO photoanode resulted in a remarkable photocurrent density of 3.6 mA/cm2 at 1.23 VrHE, an anodic bias photon-to-current efficiency of 1.4% at 0.62 VrHE, and a faradaic efficiency over 90% in PEC water splitting. Our study provides important and novel insights into the surface vacancy engineering of metal oxides for green hydrogen production. © 2023, The Authors. All rights reserved.

关键词： Transient absorption spectroscopy

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Super microporous sulfur-doped hard carbon synthesized from a π-stacked Polybenzo[c]thiophene boosting reversible lithium-ion insertion at room temperature

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Carbon 2023年 213卷

作者： ramar, Alagar Sakthivel, Mani Wang, Fu-Ming Ho, Kuo-Chuan Graduate Institute of Applied Science and Technology National Taiwan University of Science and Technology No. 43 Sec. 4 Keelung Road Taipei106 Taiwan Department of Chemical Engineering National Taiwan University Taipei Taiwan R&D Center for Membrane Technology Chung Yuan Christian University Taoyuan Taiwan Sustainable Energy Center National Taiwan University of Science and Technology Taipei Taiwan Department of Chemical Engineering Chung Yuan Christian University Taoyuan Taiwan

Synthesis of porous carbon materials with controlled textural properties is an all-time challenging process for energy storage applications. Aromatic polymers possess high rigidity due to their π-π stacking arrangement and could serve as robust precursors to produce porous carbon. Herein, super-microporous sulfur-doped hard carbons (SM-SdHCs) were synthesized from a highly ordered aromatic polybenzo[c]thiophene between 600 and 800 °C by using KOH as an activation agent. The degree of carbonization and defects were enhanced as the temperature increased from 600 to 800 °C as confirmed by X-ray diffraction and raman spectroscopy techniques. All the SM-SdHCs exhibit a super-microporosity (2 g−1). Among the three synthesized carbons, the SM-SdHC800 exhibited a high discharge capacity of 760.7 mAh g−1 at 20 mA g−1 and showed excellent cycle stability at 200 mA g−1 for 250 cycles. The reversible lithium-ion insertion of SM-SdHC800 anode is accredited to its high degree of carbonization, defect-rich quality, high interlayer distance, and microporous texture with large pore volume (0.68 cm3 g−1). In addition, the excellent cycle stability at 2 A g−1 for 1000 cycles shows its robustness for high C-rate LIBs. Polybenzo[c]thiophene precursor is a perceptive choice to produce sulfur-doped super-microporous hard carbon with controlled textural properties and could bring dramatic advances in the synthesis of nanostructured carbon materials for energy storage applications. © 2023 Elsevier Ltd

关键词： Sulfur

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Constructing superwetting membranes by sodium lignosulfonate-modified carbon nanotube for highly efficient crude oil-in-water emulsions separations

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Separation and Purification Technology 2023年 322卷

作者： Udomsin, Jittrakorn Hu, Chien-Chieh Wang, Chih-Feng Chen, Jem-Kun Tsai, Hsieh-Chih Kuo, Shiao-Wei Hung, Wei-Song Lai, Juin-Yih Graduate Institute of Applied Science and Technology Advanced Membrane Materials Research Center National Taiwan University of Science and Technology Taipei106 Taiwan Institute of Advanced Semiconductor Packaging and Testing National Sun Yat-sen University Kaohsiung804 Taiwan Department of Materials Science and Engineering National Taiwan University of Science and Technology Taipei106 Taiwan Department of Materials and Optoelectronic Science National Sun Yat-Sen University Kaohsiung804 Taiwan R&D Center for Membrane Technology Chung Yuan Christian University Taoyuan Chungli320 Taiwan Department of Chemical Engineering and Materials Science Yuan Ze University Taoyuan320 Taiwan

For the past few years, superwetting materials had been developed to enhance the treatment process of oily wastewater. membranes are improved through the combination of surface topography and chemical modifications to achieve superwetting properties for treating oily wastewater effectively. In this work, we prepared an eco-friendly membrane by depositing sodium lignosulfonate (SLS)-modified carbon nanotube (CNT) on a cellulose acetate membrane via vacuum filtration without employing any organic solvents. The SLS@CNT membrane shows superhydrophilicity and underwater superoleophobicity with high stability. Furthermore, the SLS@CNT membrane exhibits outstanding antifouling and self-cleaning properties against crude oil of high viscosity. Most importantly, our SLS@CNT membrane exhibits outstanding oil-in-water emulsions separation performances including crude oil-in-water emulsions. For the surfactant-free and surfactant-stabilized emulsions, fluxes were revealed to reach up to 27,800 L m−2 h−1 bar−1 and 13,800 L m−2 h−1 bar−1, respectively, with very high separation efficiency (>99.97 % and 99.79 %, respectively). The distinguished performance of our SLS@CNT membrane, and its eco-friendly, low-energy consumption, and cost-effective preparation, demonstrate practical applicability. © 2023 Elsevier B.V.

关键词： Emulsification

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