Flexible Recyclable Cellulose Paper Templated Cu‐Doped Polydopamine Membranes with Dual Enzyme‐Like Activity

Abstract

3] However, the practical applications of enzymes are hampered by their inherent limitations, such as time-consuming purification, poor stability, and high cost. [4] In the past decades, the ever-deepening understanding of natural enzymes and advances in nanotechnology have stimulated the emergence and rapid development of artificial enzymes (also called enzyme mimics). [5] Compared to natural enzymes, artificial enzymes possess the advantages of high stability, ease to mass-produce, structural diversification, good adaptability, and tunable catalytic activity. In particular, nanomaterial-based artificial enzymes (nanozymes) have been booming over the past decade and have emerged as the next generation of enzyme mimics. [1,4,6] It is worth mentioning that most of nanozymes still involve a high cost of preparation and they are difficult to be recycled for reuse. [7] From an economic perspective, it is expected that novel artificial enzymes will have extra merits of low cost, ease of storage and transportation, and excellent recyclability beyond that of natural enzymes and existent nanozymes.

Insulative Biobased Glaze from Wood Laminates Obtained by Self‐Adhesion

“…[24,25] Specifically, dehydration and pressing of 2,3-dialdehyde cellulose (DAC) films afford possibilities for chemical cross-linking between hydroxyl and aldehyde groups, leading to dense structures with barrier properties. [26,27] Herein, for the purposes stated above, periodate oxidation was performed on a cellulosic wood skeleton (WS) which was produced from natural wood for the introduction of active aldehydes. Afterward, all-wood transparent materials were directly produced by densifying the oxidized WS by lamination, with no need for any adhesive or polymer.…”

“…[ 24,25 ] Specifically, dehydration and pressing of 2,3‐dialdehyde cellulose (DAC) films afford possibilities for chemical cross‐linking between hydroxyl and aldehyde groups, leading to dense structures with barrier properties. [ 26,27 ]…”

Tunable catalytic release of nitric oxide via copper‐loaded coatings on titanium nanotubes for regulating biological performance

“…As shown in Figure 3a, there were obvious C1s and O1s peaks at the binding energy of 286.1 eV, 530.3 eV for all samples. As for TNT‐P24, TNT‐P6Cu3, TNT‐P12Cu3 and TNT‐P24Cu3 treated with PDA showed the characteristic peaks of N1s at the binding energy of 400.2 eV, confirmed the successful preparation of the PDA coating [34]. It was interesting that the changes of TNT‐ P6Cu3, TNT‐P12Cu3 and TNT‐P24Cu3 in O1s may be due to the association of PDA treatment time with their phenolic hydroxyl groups and quinone group.…”

“…The surface elemental composition of the samples was analysed by XPS. As shown in Figure 3a successful preparation of the PDA coating [34]. It was interesting that the changes of TNT-P6Cu3, TNT-P12Cu3 and TNT-P24Cu3 in O1s may be due to the association of PDA treatment time with their phenolic hydroxyl groups and quinone group.…”

A comprehensive exploration of the latest innovations for advancements in enhancing selectivity of nanozymes for theranostic nanoplatforms

“…[4][5][6][7] This characteristic arises from their diverse structures, multiple reactive sites on the surface, abundant redox potential, and non-specific binding to various substrates. [8][9][10][11][12][13][14][15][16][17][18][19][20][21][22][23] While their multifunctional enzyme-like properties enable various applications, such as detections, disease therapy, and environmental remediation, [24][25][26][27][28][29][30][31][32][33][34][35][36][37] their non-selective nature poses challenges in certain contexts, particularly for theragnostic nanoplatforms where precise control is crucial. Therefore, the development of more selective nanozymes has become essential to address these limitations and optimize their applications.…”