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Micro-nano-fabrication of green functional materials by multiphase microfluidics for environmental and energy applications

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Green Energy & Environment 2024年第8期9卷 1199-1219页

作者： Cheng Qi Tao Zhou Xingjiang Wu Kailang Liu Lei Li Zhou Liu Zhuo Chen Jianhong Xu Tiantian Kong Guangdong Provincial Key Laboratory of Micro/Nano Optomechatronics Engineering College of Mechatronics and Control EngineeringShenzhen University The State Key Laboratory of Chemical Engineering Department of Chemical EngineeringTsinghua University College of Chemistry and Environmental Engineering Shenzhen University department of biomedical Engineering School of MedicineShenzhen University

Multiphase microfluidic has emerged as a powerful platform to produce novel materials with tailor-designed functionalities, as microfluidic fabrication provides precise controls over the size, component, and structure of resultant materials. Recently, functional materials with welldefined micro-/nanostructures fabricated by microfluidics find important applications as environmental and energy materials. This review first illustrated in detail how different structures or shapes of droplet and jet templates are formed by typical configurations of microfluidic channel networks and multiphase flow systems. Subsequently, recent progresses on several representative energy and environmental applications, such as water purification, water collecting and energy storage, were overviewed. Finally, it is envisioned that integrating microfluidics and other novel materials will play increasing important role in contributing environmental remediation and energy storage in near future.

关键词： Microfluidics Multi-phase flow Droplet and microfiber Environmental remediation Energy Storage

Engineering Nano/Microscale Chiral Self‑Assembly in 3D Printed Constructs

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Nano-Micro Letters 2024年第3期16卷 313-332页

作者： Mohsen Esmaeili Ehsan Akbari Kyle George Gelareh Rezvan Nader Taheri‑Qazvini Monirosadat Sadati department of Chemical Engineering University of South CarolinaColumbiaSC 29208USA TA Instruments Waters LLCNew CastleDE 19720USA biomedical Engineering Program University of South CarolinaColumbiaSC 29208USA

Helical hierarchy found in biomolecules like cellulose,chitin,and collagen underpins the remarkable mechanical strength and vibrant colors observed in living *** study advances the integration of helical/chiral assembly and 3D printing technology,providing precise spatial control over chiral nano/microstructures of rod-shaped colloidal nanoparticles in intricate *** designed reactive chiral inks based on cellulose nanocrystal(CNC)suspensions and acrylamide monomers,enabling the chiral assembly at nano/microscale,beyond the resolution seen in printed *** employed a range of complementary techniques including Orthogonal Superposition rheometry and in situ rheo-optic measurements under steady shear rate *** techniques help us to understand the nature of the nonlinear flow behavior of the chiral inks,and directly probe the flow-induced microstructural dynamics and phase transitions at constant shear rates,as well as their post-flow ***,we analyzed the photo-curing process to identify key parameters affecting gelation kinetics and structural integrity of the printed object within the supporting *** insights into the interplay between the chiral inks self-assembly dynamics,3D printing flow kinematics and photopolymerization kinetics provide a roadmap to direct the out-of-equilibrium arrangement of CNC particles in the 3D printed filaments,ranging from uniform nematic to 3D concentric chiral structures with controlled pitch length,as well as random orientation of chiral *** biomimetic approach can pave the way for the creation of materials with superior mechanical properties or programable photonic responses that arise from 3D nano/microstructure and can be translated into larger scale 3D printed designs.

关键词： Directed chiral self-assembly Cellulose nanocrystals Bioinspired nanocomposite 3D printing Rheology

Estradiol increases cortical and trabecular bone accrual and bone strength in an adolescent male-to-female mouse model of gender-affirming hormone therapy

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Bone Research 2024年第1期12卷 95-106页

作者： Tian Nie Varun S.Venkatesh Suzanne Golub Kathryn S.Stok Haniyeh Hemmatian Reena Desai David J.Handelsman Jeffrey D.Zajac Mathis Grossmann Rachel A.Davey department of Medicine Austin HealthUniversity of MelbourneHeidelbergVIC 3084Australia department of biomedical Engineering University of MelbourneParkvilleVIC 3010Australia ANZAC Research Institute University of Sydney and AndrologyConcord Repatriation General HospitalConcordNSW 2137Australia

The effects of gender-affirming hormone therapy on the skeletal integrity and fracture risk in transitioning adolescent trans girls are *** address this knowledge gap,we developed a mouse model to simulate male-to-female transition in human adolescents in whom puberty is first arrested by using gonadotrophin-releasing hormone analogs with subsequent estradiol *** was suppressed by orchidectomy in male mice at 5 weeks of *** 3 weeks post-surgery,male-to-female mice were treated with a high dose of estradiol(~0.85 mg)by intraperitoneal silastic implantation for 12 *** included intact and orchidectomized males at 3 weeks post-surgery,vehicle-treated intact males,intact females and orchidectomized males at 12 weeks *** to male controls,orchidectomized males exhibited decreased peak bone mass accrual and a decreased maximal force the bone could withstand prior to *** treatment in orchidectomized male-to-female mice compared to mice in all control groups was associated with an increased cortical thickness in the mid-diaphysis,while the periosteal circumference increased to a level that was intermediate between intact male and female controls,resulting in increased maximal force and *** trabecular bone,estradiol treatment increased newly formed trabeculae arising from the growth plate as well as mineralizing surface/bone surface and bone formation rate,consistent with the anabolic action of estradiol on osteoblast *** data support the concept that skeletal integrity can be preserved and that long-term fractures may be prevented in trans girls treated with GnRHa and a sufficiently high dose of *** study is needed to identify an optimal dose of estradiol that protects the bone without adverse side effects.

关键词： treatment treatment strength

Carbon nanotubes-reinforced polylactic acid/hydroxyapatite porous scaffolds for bone tissue engineering

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Frontiers of Materials science 2024年第1期18卷 59-69页

作者： Weiwei Lan Mingbo Wang Zhenjun Lv Jun Li Fuying Chen Ziwei Liang Di Huang Xiaochun Wei Weiyi Chen Research Center for Nano-Biomaterials&Regenerative Medicine Department of Biomedical EngineeringCollege of Biomedical EngineeringTaiyuan University of TechnologyTaiyuan 030024China Guangdong Engineering Technology Research Center of Implantable Medical Polymer Shenzhen Lando Biomaterials Co.Ltd.Shenzhen 518107China Shanxi-Zheda Institute of Advanced Materials and Chemical Engineering Taiyuan 030060China department of Orthopaedics The Second Hospital of Shanxi Medical UniversityTaiyuan 030001China

In the field of bone defect repair,critical requirements for favorable cytocompatibility and optimal mechanical properties have propelled research efforts towards the development of composite *** this study,carbon nanotubes/polylactic acid/hydroxyapatite(CNTs/PLA/HA)scaffolds with different contents(0.5,1,1.5 and 2 wt.%)of CNTs were prepared by the thermally induced phase separation(TIPS)*** results revealed that the composite scaffolds had uniform pores with high porosities over 68%and high through *** addition of CNTs significantly enhanced the mechanical properties of resulted PLA/HA,in which the 1.5 wt.%CNTs/PLA/HA composite scaffold demonstrated the optimum mechanical behaviors with the bending elastic modulus of(868.5±12.34)MPa,the tensile elastic modulus of(209.51±12.73)MPa,and the tensile strength of(3.26±0.61)***,L929 cells on the 1.5 wt.%CNTs/PLA/HA scaffold displayed good spreading performance and favorable ***,it is expected that the 1.5 wt.%CNTs/PLA/HA scaffold has potential applications in bone tissue engineering.

关键词： CNTs/PLA/HA scaffold TIPS method mechanical property bone tissue engineering

Stimulated Raman scattering tomography for rapid three-dimensional chemical imaging of cells and tissue

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Validity of fatty liver prediction scores for diagnosis of fatty liver by Fibroscan

Advanced Photonics 2024年第2期6卷 20-31页

作者： Weiqi Wang Zhiwei Huang National University of Singapore College of Design and EngineeringOptical Bioimaging LaboratoryDepartment of Biomedical EngineeringSingapore

Three-dimensional(3D)imaging is essential for understanding intricate biological and biomedical systems,yet live cell and tissue imaging applications still face challenges due to constrained imaging speed and strong scattering in turbid ***,we present a unique phase-modulated stimulated Raman scattering tomography(PM-SRST)technique to achieve rapid label-free 3D chemical imaging in cells and *** accomplish PM-SRST,we utilize a spatial light modulator to electronically manipulate the focused Stokes beam along the needle Bessel pump beam for SRS tomography without the need for mechanical z *** demonstrate the rapid 3D imaging capability of PM-SRST by real-time monitoring of 3D Brownian motion of polystyrene beads in water with 8.5 Hz volume rate,as well as the instant biochemical responses to acetic acid stimulants in MCF-7 ***,combining the Bessel pump beam with a longer wavelength Stokes beam(NIR-II window)provides a superior scattering resilient ability in PM-SRST,enabling rapid tomography in deeper tissue *** PM-SRST technique providestwofold enhancement in imaging depth in highly scattering media(e.g.,polymer beads phantom and biotissue like porcine skin and brain tissue)compared with conventional point-scan *** also demonstrate the rapid 3D imaging ability of PM-SRST by observing the dynamic diffusion and uptake processes of deuterium oxide molecules into plant *** rapid PM-SRST developed can be used to facilitate label-free 3D chemical imaging of metabolic activities and functional dynamic processes of drug delivery and therapeutics in live cells and tissue.

关键词： stimulated Raman scattering tomography deep tissue Raman imaging spatial light modulation

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Hepatobiliary & Pancreatic Diseases International 2024年第4期23卷 353-360页

作者： Seogsong Jeong Sun Jae Park Seong Kyun Na Sang Min Park Byung-Cheol Song Yun Hwan Oh department of biomedical sciences Seoul National University Graduate SchoolSeoul 03080Korea department of biomedical Informatics CHA University School of MedicineCHA UniversitySeongnam 13488Korea department of Internal Medicine Inje University College of MedicineSeoul 50834Korea department of Family Medicine Seoul National University HospitalSeoul National University College of MedicineSeoul 03080Korea department of Internal Medicine Jeju National University HospitalJeju National University College of MedicineJeju 63241Korea department of Family Medicine Jeju National University HospitalJeju National University College of MedicineJeju 63241Korea department of Family Medicine Chung-Ang University Gwangmyeong HospitalChung-Ang University College of MedicineGwangmyeong 14353Korea

Background:The Korea National Health and Nutrition Examination Survey nonalcoholic fatty liver disease(K-NAFLD)score was recently developed with the intent to operationally define nonalcoholic fatty liver disease(NAFLD).However,there remained an external validation that confirmed its diagnostic performance,especially in patients with alcohol consumption or hepatitis virus ***:Diagnostic accuracy of the K-NAFLD score was evaluated in a hospital-based cohort consisting of 1388 participants who received Fibroscan®.Multivariate-adjusted logistic regression models and the contrast estimation of receiver operating characteristic curves were used for validation of the K-NAFLD score,fatty liver index(FLI),and hepatic steatosis index(HSI).Results:K-NAFLD-moderate[adjusted odds ratio(aOR)=2.53,95%confidence interval(CI):1.13-5.65]and K-NAFLD-high(aOR=4.14,95%CI:1.69-10.13)groups showed higher risks of fatty liver compared to the K-NAFLD-low group after adjustments for demographic and clinical characteristics,and FLI-moderate and FLI-high groups revealed aORs of 2.05(95%CI:1.22-3.43)and 1.51(95%CI:0.78-2.90),*** addition,the HSI was less predictive for Fibroscan®-defined fatty *** K-NAFLD and FLI also demonstrated high accuracy in the prediction of fatty liver in patients with alcohol consumption and chronic hepatitis virus infection,and the adjusted area under curve values were comparable between K-NAFLD and ***:Externally validation of the K-NAFLD and FLI showed that these scores may be a useful,noninvasive,and non-imaging modality for the identification of fatty *** addition,these scores also predicted fatty liver in patients with alcohol consumption and chronic hepatitis virus infection.

关键词： Nonalcoholic fatty liver disease Fatty liver index Hepatic steatosis index

Interface Engineering on Constructing Physical and Chemical Stable Solid-State Electrolyte Toward Practical Lithium Batteries

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Energy & Environmental Materials 2024年第4期7卷 28-47页

作者： Honggang He Litong Wang Malek Al-Abbasi Chunyan Cao Heng Li Zhu Xu Shi Chen Wei Zhang Ruiqing Li Yuekun Lai Yuxin Tang Mingzheng Ge School of Textile and Clothing Nantong University School of science Qingdao University of Technology department of biomedical sciences City University of Hong Kong Institute of Applied Physics and Materials Engineering University of Macau College of Chemical Engineering Fuzhou University

Solid-state lithium batteries (SSLBs) with high safety have emerged to meet the increasing energy density demands of electric vehicles,hybrid electric vehicles,and portable electronic ***,the dendrite formation,high interfacial resistance,and deleterious interfacial reactions caused by solid-solid contact between electrode and electrolyte have hindered the commercialization of SSLBs.

关键词： dendrite formation high energy density interface instability interfacial resistance solid-state electrolyte

Inorganic virus-like nanoparticles for biomedical applications:a minireview

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未来食品学报(英文) 2024年第1期4卷 71-82页

作者： Liying Zhao Jiahong Zhou Dawei Deng department of Pharmaceutical Engineering School of EngineeringChina Pharmaceutical UniversityNanjing 211198China department of biomedical Engineering School of EngineeringChina Pharmaceutical UniversityNanjing 211198China

Nature has the ingenious capability to design spiky topological features at the macro-and nanoscales,which exhibits fascinating interface adhesive properties by means of multivalent *** a biomimetic approach,such as nanoscale virus particles are highly infectious toward host cells,a range of organic and inorganic spiky particles(virus-like nanostructures)have been precisely engineered for diverse biomedical ***,organic virus-like particles(VLPs)derived from viral capsids(often termed as virosomes)have been extensively studied and reviewed,but concomitant concerns regarding immunogenicity and risks of mutagenesis limit clinical potential of organic *** contrast,inorganic VLPs(viral-mimicking topography)possess fascinating physicochemical characteristics,such as excellent electrical,optical,magnetic,mechanical and catalytic properties,which make them particularly suitable for biomedical ***,there is no comprehensive review related to inorganic VLPs engineered with non-viral shell for biomedical ***,in this review,we present a brief overview on inorganic VLPs,followed by summarizing the construction and properties of virus-like nanostructures,as well as the mechanisms of nano-bio interface interactions initiated by spiky ***,we focus on the recent advances of VLPs for biomedical applications(including biosensing,antibacterial therapy and cancer treatment).Finally,the future outlook and emerging challenges will be *** review aims to provide future scope of the rational design of inorganic non-viral vectors,especially with respect to gene-based therapy platforms.

关键词： Nanotopography Virus-like Spike Inorganic particles biomedical applications

Ptycho-endoscopy on a lensless ultrathin fiber bundle tip

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Light(science & Applications) 2024年第9期13卷 1766-1778页

作者： Pengming Song Ruihai Wang Lars Loetgering Jia Liu Peter Vouras Yujin Lee Shaowei Jiang Bin Feng Andrew Maiden Changhuei Yang Guoan Zheng department of biomedical Engineering University of ConnecticutStorrsCT 06269USA CarlZeiss AG Carl Zeiss PromenadeJenaThuringia 07745Germany United States department of Defense WashingtonDC 20301USA School of Electrical and Electronic Engineering Yonsei UniversitySeoul 03722Republic of Korea department of Electronic and Electrical Engineering University of SheffieldSheffield South Yorkshire S13JDUK Diamond Light Source HarwellOxfordshire OX110DEUK department of Electrical Engineering California Institute of TechnologyPasadenaCA 91125USA Center for biomedical and Bioengineering Innovation University of ConnecticutStorrsCT 06269USA

Synthetic aperture radar(SAR)utilizes an aircraft-carried antenna to emit electromagnetic pulses and detect the returning *** the aircraft travels across a designated area,it synthesizes a large virtual aperture to improve image *** by SAR,we introduce synthetic aperture ptycho-endoscopy(SAPE)for micro-endoscopic imaging beyond the diffraction *** operates by hand-holding a lensless fiber bundle tip to record coherent diffraction patterns from *** fiber cores at the distal tip modulate the diffracted wavefield within a confined area,emulating the role of the‘airborne antenna’in *** handheld operation introduces positional shifts to the tip,analogous to the aircraft’s *** shifts facilitate the acquisition of a ptychogram and synthesize a large virtual aperture extending beyond the bundle’s physical *** mitigate the influences of hand motion and fiber bending through a low-rank spatiotemporal decomposition of the bundle’s modulation *** tests demonstrate the ability to resolve a 548-nm linewidth on a resolution *** achieved space-bandwidth product is~1.1 million effective pixels,representing a 36-fold increase compared to that of the original fiber ***,SAPE’s refocusing capability enables imaging over an extended depth of field exceeding 2 *** aperture synthesizing process in SAPE surpasses the diffraction limit set by the probe’s maximum collection angle,opening new opportunities for both fiber-based and distal-chip endoscopy in applications such as medical diagnostics and industrial inspection.

关键词： fiber antenna bundle