A5100438506- Neuroscience and Neural Engineering
- Advanced Sensor and Energy Harvesting Materials
- Conducting polymers and applications
- Photoreceptor and optogenetics research
- Supercapacitor Materials and Fabrication
- Neuroinflammation and Neurodegeneration Mechanisms
- Advancements in Battery Materials
- Advanced Memory and Neural Computing
- EEG and Brain-Computer Interfaces
- Advanced battery technologies research
- Molecular Communication and Nanonetworks
- Neurological Disease Mechanisms and Treatments
- Neural dynamics and brain function
- Advanced Battery Materials and Technologies
- Organic Electronics and Photovoltaics
- Mechanical and Optical Resonators
- Structural Health Monitoring Techniques
- Iron oxide chemistry and applications
- Electrochemical sensors and biosensors
- Musculoskeletal pain and rehabilitation
- Foot and Ankle Surgery
- Effects of Vibration on Health
- CCD and CMOS Imaging Sensors
- Cancer, Stress, Anesthesia, and Immune Response
- Brain Tumor Detection and Classification
Qilu University of Technology
2024
Shandong Academy of Sciences
2024
George Washington University
2019-2023
Shandong Institute of Automation
2023
Chinese Academy of Sciences
2023
Qingdao University
2022-2023
Xidian University
2022
Dalian University
2018-2021
Dalian University of Technology
2018-2021
Hangzhou Dianzi University
2021
Significance Monitoring neuronal activity with cell specificity in freely behaving animal models can yield insights into underpinning operating mechanisms of the brain. Dynamics genetically targeted populations be recorded through calcium indicators; however, current tools for such measurements are only available tethers or large and heavy externalized head stages, potential to influence behaviors test subjects limit experimental paradigms simple two-dimensional arenas. Here, we introduce...
In this paper, an ultra-compact single-chip solar energy harvesting IC using on-chip cell for biomedical implant applications is presented. By employing charge pump with parallel connected photodiodes, a 3.5 × efficiency improvement can be achieved when compared the conventional stacked photodiode approach to boost harvested voltage while preserving solution. A photodiode-assisted dual startup circuit (PDSC) also proposed improve area and increase speed by 77%. auxiliary (AQP) zero threshold...
Abstract Heart rhythm disorders, known as arrhythmias, cause significant morbidity and are one of the leading causes mortality. Cardiac arrhythmias frequently treated by implantable devices, such pacemakers defibrillators, or ablation therapy guided electroanatomical mapping. Both therapies require sophisticated biointerfaces for electrophysiological measurements electrograms delivery therapeutic stimulation energy. In this work, a graphene biointerface in vivo cardiac electrophysiology is...
The sliding-window-based dynamic functional connectivity networks (D-FCNs) derived from resting-state magnetic resonance imaging (rs-fMRI) are effective methods for diagnosing various neurological diseases, including autism spectrum disorder (ASD). However, traditional D-FCNs low-order based on pairwise correlation between brain regions, thus overlooking high-level interactions across multiple ROIs. Moreover, suffer the temporal mismatching issue, i.e., sub-networks in same window do not...
Abstract All‐solid‐state flexible asymmetric supercapacitors (ASCs) are developed by utilization of graphene nanoribbon (GNR)/Co 0.85 Se composites as the positive electrode, GNR/Bi 2 3 negative and polymer‐grafted‐graphene oxide membranes solid‐state electrolytes. Both GNR/Co composite electrodes a facile one‐step hydrothermal growth method from nanoribbons nucleation framework. The electrode exhibits specific capacity 76.4 mAh g −1 at current density 1 A 100.2 0.5 . Moreover, stretchable...
Transparent microelectrode arrays (MEAs) that allow multimodal investigation of the spatiotemporal cardiac characteristics are important in studying and treating heart disease. Existing implantable devices, however, designed to support chronic operational lifetimes require surgical extraction when they malfunction or no longer needed. Meanwhile, bioresorbable systems can self-eliminate after performing temporary functions increasingly attractive because avoid costs/risks extraction. We...
A lithium ion capacitor (LIC) is a hybrid energy storage device that combines the mechanism of batteries and supercapacitors presents their complementary features. However, imbalances capacity kinetics between cathode anode still remain challenges. Herein, to address issue low in cathode, we constructed morning glory like porous material crimped from an opening sandwich structure consisting hard carbon inner layer soft outer layer, by coating graphene oxide containing flaky phenolic resin...
Abstract Supercapacitors have attracted enormous attention for energy storage in both academic and industrial sectors the past years. In this study, all‐solid‐state flexible asymmetric supercapacitors (ASCs) without any binder, incorporated with hydrophilic carbon cloth (HCC) MnO 2 nanocomposite (HCC@MnO ) as positive electrode, HCC polypyrrole (PPy) (HCC@PPy) negative polyvinyl alcohol (PVA)–LiCl gel electrolyte separator, are reported. The HCC@MnO HCC@PPy electrodes prepared by direct...
Abstract Recent developments in optophysiology techniques such as optogenetics have revolutionized the ability to actuate cell activity. Further combining and electrophysiology will integrate advantages from both optical electrical modalities yield enabling technologies that allow simultaneous monitoring of cellular activity response modulation, which are crucial for biomedical applications. However, multifunctional devices can deliver stimuli regions beneath electrodes perform sensing...
Abstract Transparent microelectrodes have recently emerged as a promising approach for crosstalk‐free multifunctional electrical and optical biointerfacing. High‐performance flexible platforms that allow seamless integration with soft tissue systems such applications are urgently needed. Here, silver nanowires (Ag NWs)‐based transparent microelectrode arrays (MEAs) interconnects designed to meet this demand. The nanowire networks exhibit high transparency >90.0% at 550 nm, superior...
Bio-integrated organic optoelectronics is an emerging research field that takes advantage of the soft and deformable properties semiconductor materials for applications at interface biology. The results are advanced flexible, even stretchable, wearable, implantable systems allow intimate long-term integration with biological tissues to enable new opportunities high-fidelity healthcare monitoring, therapeutics, human-machine interfaces, etc. In this review, we introduce field, present...
Abstract Flexible and transparent microelectrodes interconnects provide the unique capability for a wide range of emerging biological applications, including simultaneous optical electrical interrogation systems. For practical biointerfacing, it is important to further improve optical, electrical, electrochemical, mechanical properties conductive materials. Here, high‐performance with high transmittance (59–81%), superior electrochemical impedance (5.4–18.4 Ω cm 2 ), excellent sheet...
Abstract Transparent microelectrodes have received much attention from the biomedical community due to their unique advantages in concurrent crosstalk‐free electrical and optical interrogation of cell/tissue activity. Despite recent progress constructing transparent microelectrodes, a major challenge is simultaneously achieve desirable mechanical stretchability, transparency, electrochemical performance, chemical stability for high‐fidelity, conformal, stable interfacing with soft...
Electrical and optical biointerfaces have contributed considerably to understanding biological systems. Recent advances in biocompatible materials, structure designs, fabrication techniques established flexible minimally invasive electronic/optoelectronic platforms that laminate onto targeted surface regions or implant into precise locations of biosystems monitor control various processes at cell, tissue, organ levels. Herein, recent progress advanced biointegrated electrical is discussed....
Optical fluorescence and electrical monitoring of cell activity are two powerful approaches to study organ functions. Simultaneous recording optical data types will provide complementary information from take advantage each approach. However, devices that can concurrently record signals the same population underneath microelectrodes have not been widely explored remain a grand technical challenge. This work presents an innovative flexible opto-electric device monolithically integrates...
Abstract Bioelectronic devices that allow simultaneous accurate monitoring and control of the spatiotemporal patterns cardiac activity provide an effective means to understand mechanisms optimize therapeutic strategies for heart disease. Optogenetics is a promising technology research due its advantages such as cell‐type selectivity high space‐time resolution, but efficacy limited by insufficient number modulation channels lack mapping capabilities in current implantable optogenetics tools...
Li-ion capacitors (LICs) can be endowed with a satisfying energy density by introducing battery materials in the system, but polarization of bulk-phase Li insertion, especially from phase transition, sacrifices crucial efficiency at high-power delivery. We herein report fabrication pseudocapacitance-dominated LIC showing advanced and rate capability. The key solution relies on selective use nanosized amorphous LiFePO4 as cathode, which exhibits pseudocapacitive insertion solid reaction...
Recently developed optically transparent microelectrode technology provides a promising approach for simultaneous high-resolution electrical and optical biointerfacing with tissues in vivo vitro. A critically unmet need is designing high-performance stretchable platforms conformal mechanically active organs. Here, we report silver nanowire (Ag NW) microelectrodes interconnects that exhibit excellent electrochemical performance, high transparency, superior mechanical robustness durability by...
P -poly(9, 9-diethylfluorene)/n-silicon nanowire (SiNW) heterojunctions were prepared by spin coating p-type conductive organic polymer on as-prepared n-SiNWs, which fabricated electroless metal deposition method. This hybrid p-n heterojunction shows good rectifying behavior with turn-on voltage of about 1V at room temperature. Temperature-dependent current-voltage properties in the range 253–413K investigated and they follow standard electron transport mechanism. The photovoltaic...
Surface plasmon resonances have become a useful tool for measuring coherent motion in solids, ranging from nanoparticle dynamics to acoustic vibrations thin films. The non-linear electronic response near the surface resonance can significantly enhance transient optical measurements, making efficient detection of possible. In this work, we measure phonon bismuth film through resonance. We observe distinct changes measured amplitude and phase fully symmetric A1g mode that are not explained...