Intelligent wearable sensors, empowered by machine learning and innovative smart materials, enable rapid, accurate disease diagnosis, personalized therapy, and continuous health monitoring without disrupting daily lif...
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Intelligent wearable sensors, empowered by machine learning and innovative smart materials, enable rapid, accurate disease diagnosis, personalized therapy, and continuous health monitoring without disrupting daily life. This integration facilitates a shift from traditional, hospital-centered healthcare to a more decentralized, patient-centric model, where wearable sensors can collect real-time physiological data, provide deep analysis of these data streams, and generate actionable insights for point-of-care precise diagnostics and personalized therapy. Despite rapid advancements in smart materials, machine learning, and wearable sensing technologies, there is a lack of comprehensive reviews that systematically examine the intersection of these fields. This review addresses this gap, providing a critical analysis of wearable sensing technologies empowered by smart advanced materials and artificial Intelligence. The state-of-the-art smart materials-including self-healing, metamaterials, and responsive materials-that enhance sensor functionality are first examined. Advanced machine learning methodologies integrated into wearable devices are discussed, and their role in biomedical applications is highlighted. The combined impact of wearable sensors, empowered by smart materials and machine learning, and their applications in intelligent diagnostics and therapeutics are also examined. Finally, existing challenges, including technical and compliance issues, information security concerns, and regulatory considerations are addressed, and future directions for advancing intelligent healthcare are proposed.
Potassium ions (K+) released from dying necrotic tumour cells accumulate in the tumour microenvironment (TME) and increase the local K+ concentration to 50 mM (high-[K+]e). Here, we demonstrate that high-[K+]e decreas...
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Potassium ions (K+) released from dying necrotic tumour cells accumulate in the tumour microenvironment (TME) and increase the local K+ concentration to 50 mM (high-[K+]e). Here, we demonstrate that high-[K+]e decreases expression of the T-cell receptor subunits CD3 epsilon and CD3 zeta and co-stimulatory receptor CD28 and thereby dysregulates intracellular signal transduction cascades. High-[K+]e also alters the metabolic profiles of T-cells, limiting the metabolism of glucose and glutamine, consistent with functional exhaustion. These changes skew T-cell differentiation, favouring Th2 and iTreg subsets that promote tumour growth while restricting antitumour Th1 and Th17 subsets. Similar phenotypes were noted in T-cells present within the necrosis-prone core versus the outer zones of hepatocellular carcinoma (HCC)/colorectal carcinoma (CRC) tumours as analysed by GeoMx digital spatial profiling and flow-cytometry. Our results thus expand the understanding of the contribution of high-[K+]e to the immunosuppressive milieu in the TME.
We identified a subset of patients with colorectal cancer (CRC) enriched with “collagen-TAMs,” designated the CM class, using large integrated colon cancer transcriptome and single-cell transcriptome datasets. This ...
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作者:
chen, shuwenZhu, JunXiamen Univ
Coll Chem & Chem Engn State Key Lab Phys Chem Solid Surfaces Xiamen 361005 Peoples R China Xiamen Univ
Coll Chem & Chem Engn Collaborat Innovat Ctr Chem Energy Mat iChEM Fujian Prov Key Lab Theoret & Computat Chem Xiamen 361005 Peoples R China Xiamen Univ
Coll Chem & Chem Engn Dept Chem Xiamen 361005 Peoples R China
Aromaticity and hyperconjugation are two fundamental concepts in chemistry. Combining them together led to the proposal of the concept of hyperconjugative aromaticity by Mulliken in 1939. Now, it has been attracting c...
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Aromaticity and hyperconjugation are two fundamental concepts in chemistry. Combining them together led to the proposal of the concept of hyperconjugative aromaticity by Mulliken in 1939. Now, it has been attracting considerable attention from both theoretical and experimental chemists. Recently, the concept of hyperconjugative aromaticity has been extended from main-group substituents to transition metal systems including groups 9, 10, and 11 transition metal substituents. Here, we report the hyperconjugative aromaticity in cyclopentadienes and pyrroliums containing group 7 transition metal substituents through density functional theory (DFT) calculations. It is found that the metal-metal bonding interaction can significantly reduce the aromaticity in cyclopentadienes, whereas the stronger sigma-donor ligand, bridged hydride, and carbonyls can enhance aromaticity. All these findings expand the scope of the concept of hyperconjugative aromaticity, enriching aromatic organometallic chemistry.
作者:
chen, shuwenZhu, JunXiamen Univ
Coll Chem & Chem Engn State Key Lab Phys Chem Solid Surfaces Xiamen 361005 Peoples R China Xiamen Univ
Coll Chem & Chem Engn Collaborat Innovat Ctr Chem Energy Mat iChEM Fujian Prov Key Lab Theoret & Computat Chem Xiamen 361005 Peoples R China Xiamen Univ
Coll Chem & Chem Engn Dept Chem Xiamen 361005 Peoples R China Chinese Univ Hong Kong
Sch Sci & Engn Shenzhen 518172 Guangdong Peoples R China
The photoswitching behaviors of heteroarylazos and azobenzeneshave attracted considerable interest due to their applications frommaterial science to pharmacology. However, the use of UV light limitstheir application, ...
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The photoswitching behaviors of heteroarylazos and azobenzeneshave attracted considerable interest due to their applications frommaterial science to pharmacology. However, the use of UV light limitstheir application, especially in biomedicine and *** this work, using several aromaticity descriptors, including anisotropyof the induced current density analysis and nucleus-independent chemicalshifts, we systematically investigate the relationship between anti-aromaticityand the absorption of a series of heterocyclic azos. We have demonstratedthat the antiaromatic heterocycles substituted with diazenes enablethe significant red shifts of the n & RARR;& pi;* and & pi;& RARR;& pi;* transition bands of E and Z isomers via density functional theory calculations. Moreover,introducing substituents into heterocycles could further tune theabsorption. Finally, the & lambda;(max) of the first transitionbands of the E (ca. 1026 nm) and Z isomers (ca. 1167 nm) of azos is achieved in the near-infrared region.
This study investigates the articulatory and acoustic features of tense-lax vowel contrast in Northern Yi. Northern Yi has five pairs of phonologically-defined tense and lax vowels. Previous studies have shown that th...
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ISBN:
(纸本)9798350397963
This study investigates the articulatory and acoustic features of tense-lax vowel contrast in Northern Yi. Northern Yi has five pairs of phonologically-defined tense and lax vowels. Previous studies have shown that the difference between tense and lax vowels lies mainly in phonation type, while the vowel quality difference between the two types of vowels remains controversial. The current study provided tongue shape data and acoustic data of all tense and lax vowels in a Northern Yi dialect, Suondi Yi, using ultrasound imaging and acoustic analysis. The ultrasound data showed that tense vowels were consistently articulated with a more retracted tongue root and a lower tongue front compared to lax vowels. Acoustically, tense vowels have a higher F1 and a lower F2 compared to lax vowels. The data suggests that there are consistent vowel quality differences between all tense-lax vowel pairs in Northern Yi, and the vowel quality difference involves advanced tongue root/retracted tongue root ([ATR]/[RTR]) contrast.
Horn antenna is one of the simplest even widely used antennas in the RF and microwave regimes. However, few systematic investigations on pyramidal horn antennas are found at optical frequency while optical antennas ar...
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Horn antenna is one of the simplest even widely used antennas in the RF and microwave regimes. However, few systematic investigations on pyramidal horn antennas are found at optical frequency while optical antennas are extensively studied in various applications. Here, we investigate the feature of pyramidal horn nanoantennas and explore the mechanism of nanofocusing. Although the dimensions of antenna can be optimized through numerical simulations for the applications, it is inefficient due to the large degree of freedom of a horn antenna. Firstly, we analyze both the scattering loss and the dissipative loss during compressing electromagnetic waves in the horn antennas while the dimensions gradually decrease. Then, we establish an analytic and simple approach of mode matching, which is based on the effective index method, to efficiently squeeze light into arbitrarily small 3D nanospots. We numerically demonstrate that a nanofocusing spot of pi lambda (2)/1200 at the wavelength of 785 nm with 1.2 dB losses is achieved by a pyramidal horn nanoantenna with the analytically determined dimensions. The intensity enhancement is further increased to more than 6000 times by introducing surface plasmon coupling at the input interface.
Recently, more and more researchers have committed to designing higher-performance materials to improve the power conversion efficiencies (PCEs) of OSCs. However, the inherent laws of synthesising high-quality organic...
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Recently, more and more researchers have committed to designing higher-performance materials to improve the power conversion efficiencies (PCEs) of OSCs. However, the inherent laws of synthesising high-quality organic materials are still ambiguous. It is important to explore the structural effect on the photoelectric properties of the synthesised organic. In 2023, the Zou group designed two electron donors, 2DTBDT and 2DTBDT-2T, which are respectively without and with bithiophene in the molecular skeleton. The introduction of bithiophene into 2DTBDT-2T made the PCE of 2DTBDT-2T:Y6 heterojunction triple the 2DTBDT counterpart. Based on this, we selected eco-friendly electron acceptors, CBM, FBR, O-IDFBR and O-IDTBR, to compose the heterojunction with 2DTBDT and 2DTBDT-2T. The ionisation energies (IEs) and absorption spectra of all independent molecules and the excitation energy transfer (EET) couplings of heterojunction are accurately investigated from many-body Green's function theory (MBGFT). We found that the electronic structure and excitation are sensitive to the resonance-antiresonance transitions and the electron-hole interactions. The thienyl group makes the molecule lower CT energy and the stronger EET coupling of heterojunctions, to promote the efficiency of relevant OSCs. The Dexter and overlap types couplings are very important to the study on the EET of organic heterojunctions. [GRAPHICAL ABSTRACT]
A theory is presented for the transmission of transverse magnetic waves through a finite number of subwavelength slits in metal film. While a single slit achieves the single channel limit on resonance, multiple slits ...
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A theory is presented for the transmission of transverse magnetic waves through a finite number of subwavelength slits in metal film. While a single slit achieves the single channel limit on resonance, multiple slits show super-transmission exceeding the single channel limit. The phenomenon of super-transmission is revealed as a result of cross-coupling of modes and confirmed by simulations. The influence of finite permittivity in the IR and microwave regime is included by perturbative corrections to the theory. The theory agrees quantitatively with past experiments and finite-difference time-domain simulations. By considering two or more modes in the slit region, our theory provides an approach to the analysis of cross-coupling among slits, which allows for super-transmission and features of a Fano resonance. (C) 2014 Optical Society of America
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