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1. Rheological and rheo-optical behaviors of nanocellulose suspensions containing unfibrillated fibers

Author:
Yoshifumi Yamagata; Shingo Niinobe; Kotaro Suga; Yuki Nakano; Keisuke Miyamoto
Source:
Cellulose 2022 v.29 no.7 pp. 3703-3719
ISSN:
0969-0239
Subject:
gels,   etc   ; cellulose; viscosity;     Show all 3 Subjects
Abstract:
... We investigated the relationship between the concentration of nanosized fibers and the rheological and the rheo-optic behaviors of CNF suspensions containing unfibrillated fibers prepared by a wet refinement system (Water Jet System). The CNF suspensions behaved as a gel in which entropic elasticity was dominant, and the entanglement among fibers would be enhanced with the nanosized fiber volume f ...
DOI:
10.1007/s10570-022-04509-6

2. A platform method for charge heterogeneity characterization of fusion proteins by icIEF

Author:
Gang Wu; Chuanfei Yu; Wenbo Wang; Rongjian Zhang; Meng Li; Lan Wang
Source:
Analytical biochemistry 2022 v.638 pp. 114505
ISSN:
0003-2697
Subject:
gels,   etc   ; biopharmaceutical industry; biopharmaceuticals; therapeutics;     Show all 4 Subjects
Abstract:
... The charge heterogeneity of fusion proteins can vary dramatically compared with more traditional biopharmaceuticals like monoclonal antibodies, making the characterization of fusion proteins a challenge. A single platform method suitable for the analysis of multiple fusion proteins would reduce method development and streamline production workflows. Here, we develop a platform method to characteri ...
DOI:
10.1016/j.ab.2021.114505

3. An experimental and numerical study of sutural composites with shear stiffening gel core

Author:
Xiwen Fan; Shuai Liu; Bochao Wang; Yu Wang; Sheng Wang; Xinglong Gong
Source:
Journal of materials science 2022 v.57 no.2 pp. 1328-1344
ISSN:
0022-2461
Subject:
gels,   etc   ; biomimetics; energy; geometry; mechanical properties;     Show all 5 Subjects
Abstract:
... Biomimetic composites have attracted much attention because they can provide effective approaches to achieve high toughness and stiffness with limited raw materials. Smart materials and sophisticated structures are the key factors to influence the mechanical behavior of biomimetic composites. In this work, a novel biomimetic composite was developed by introducing shear stiffening gel (SSG) into su ...
DOI:
10.1007/s10853-021-06596-5

4. Gel scaffolds and emerging applications in biomedicine

Author:
Mani Rajasekar; Manivannan Lavanya
Source:
RSC advances 2022 v.12 no.25 pp. 15925-15949
ISSN:
2046-2069
Subject:
gels,   etc   ; chemical species; medicine; pH; temperature;     Show all 5 Subjects
Abstract:
... Nowadays, gels are formed by small molecules self-assembling under the influence of various non-covalent interactions. They can be easily perturbed, which allows for the careful tweaking of their properties. They are kinetically confined, and following production, they usually do not demonstrate time-variable changes in material properties. When exposed to external stimuli such as temperature, pH, ...
DOI:
10.1039/d2ra00924b

5. Substrate-free, ultra-conformable PEDOT: PSS E-tattoo achieved by energy regulation on skin

Author:
Yuanfen Chen; Genping Zhou; Xiaoming Yuan; Chunlin Li; Liming Liu; Hui You
Source:
Biosensors & bioelectronics 2022 v.206 pp. 114118
ISSN:
0956-5663
Subject:
gels,   etc   ; adhesion; biosensors; electrodes; energy; telemedicine;     Show all 6 Subjects
Abstract:
... Electronic tattoo has great potential application in mobile health. Fully conformal contact between E-tattoo and skin is critical for reliable monitoring. In this paper, we reported a substrate-free, ultra-conformable PEDOT: PSS (3,4-ethylenedioxythiophene):poly(styrene-sulfonate) E-tattoo achieved by interface energy regulation on skin. The controllable gel/dry electrode mutual transformation pro ...
DOI:
10.1016/j.bios.2022.114118

6. Development of a complementary-frequency strategy to improve microwave heating of gellan gel in a solid-state system

Author:
Ran Yang; Aly E. Fathy; Mark T. Morgan; Jiajia Chen
Source:
Journal of food engineering 2022 v.314 pp. 110763
ISSN:
0260-8774
Subject:
gels,   etc   ; absorption; algorithms; cameras; foods; temperature profiles;     Show all 6 Subjects
Abstract:
... As a helpful step towards the future development of a solid-state microwave system that can dynamically control microwave source parameters to deliver better heating performance, a complementary-frequency heating strategy has been developed and will be discussed here. The proposed complementary-frequency heating strategy is based on potential microwave heating uniformity enhancement through microw ...
DOI:
10.1016/j.jfoodeng.2021.110763
CHORUS:
10.1016/j.jfoodeng.2021.110763

7. Fibrillar gel self-assembly via cononsolvency of amphiphilic polymer

Author:
Aleksandr I. Buglakov; Valentina V. Vasilevskaya
Source:
Journal of colloid and interface science 2022 v.614 pp. 181-193
ISSN:
0021-9797
Subject:
gels,   etc   ; gelation; molecular dynamics; polymers; porosity; solvents;     Show all 6 Subjects
Abstract:
... Polymer with amphiphilic repeating units bathed in the mixed binary solvent can exhibit fibrillar formation and gelation via cononsolvency effect. Mechanism of gelation will be highly dependent on the solvent’s interactions and morphology of the resulting fibrillar gel can be fine-tuned by changing binary solvent composition. Amphiphilic homopolymers dissolved in a mixture of two solvents with dif ...
DOI:
10.1016/j.jcis.2022.01.095

8. Reversing RAFT Polymerization: Near-Quantitative Monomer Generation Via a Catalyst-Free Depolymerization Approach

Author:
Hyun Suk Wang; Nghia P. Truong; Zhipeng Pei; Michelle L. Coote; Athina Anastasaki
Source:
Journal of the American Chemical Society 2022 v.144 no.10 pp. 4678-4684
ISSN:
1520-5126
Subject:
gels,   etc   ; crosslinking; depolymerization; methyl ethers; polymerization; polymethylmethacrylate;     Show all 6 Subjects
Abstract:
... The ability to reverse controlled radical polymerization and regenerate the monomer would be highly beneficial for both fundamental research and applications, yet this has remained very challenging to achieve. Herein, we report a near-quantitative (up to 92%) and catalyst-free depolymerization of various linear, bulky, cross-linked, and functional polymethacrylates made by reversible addition–frag ...
DOI:
10.1021/jacs.2c00963

9. Soft while strong mechanical shock tolerable e-skins

Author:
Yanan Wang; Baicun Hao; Yujia Wang; Yingjie Wei; Xin Huang; Bi Shi
Source:
Journal of materials chemistry A 2022 v.10 no.15 pp. 8186-8194
ISSN:
2050-7496
Subject:
gels,   etc   ; collagen; direct contact; energy; strength (mechanics);     Show all 5 Subjects
Abstract:
... Mechanical shock tolerance is of significance in developing high-performance e-skins. Herein, we report mechanical shock tolerable (MST) e-skins that spontaneously mimic the protection and sensing functions of natural skin. The MST e-skin was prepared using the conductive collagen fiber sponge (CFS) embedded with the elastic non-Newtonian gel (ENG). The MST e-skin is soft under relaxing conditions ...
DOI:
10.1039/d1ta10746a

10. A New Montmorillonite-Based Porous Composites: Effectively Removal of Cr(III)-Organic Complexes in Tannery Wastewater

Author:
Xin Hao; Tao E; Shuyi Yang; Yun Li
Source:
Journal of polymers and the environment 2022 v.30 no.1 pp. 308-318
ISSN:
1566-2543
Subject:
gels,   etc   ; adsorbents; adsorption; citrates; environment; pH; tanneries; wastewater;     Show all 8 Subjects
Abstract:
... Montmorillonite-based porous adsorbent prepared by gel casting method was used to adsorb Cr(III)-organic complexes in tanning wastewater,together with the initial concentration of 10 mg L⁻¹. The as-porous adsorbent exhibited an excellent performance of separation. Meanwhile, its structural and morphology were characterized by TG, BET, XRD, SEM, EDS and XPS, showing that the porous adsorbent was co ...
DOI:
10.1007/s10924-021-02193-4

11. Interface control and mechanical properties of Al2O3–Ni laminated composites that were prepared through gel casting and hot pressing

Author:
Mengwen Zhang; Yiming Zeng; Hongwei Yang; Xudong Sun
Source:
Journal of materials science 2022 v.57 no.25 pp. 11684-11697
ISSN:
0022-2461
Subject:
gels,   etc   ; brittleness; microstructure; oxidation; plastic deformation; temperature; wettability;     Show all 7 Subjects
Abstract:
... The use of ceramic–metal laminated composites is an efficient way to improve the toughness of brittle ceramics. Uniform multilayered Al₂O₃–Ni laminated composites were prepared through a combined method of gel casting and hot pressing, which is less cumbersome than the traditional sequential lamination method. The wettability, diffusion and chemical reaction between Al₂O₃ and Ni were controlled th ...
DOI:
10.1007/s10853-022-07326-1

12. Multifunctional Polyurethane Composite Foam with Outstanding Anti-impact Capacity for Soft Body Armors

Author:
Ting Fan; Shan-Shan Xue; Wei-Bin Zhu; Yuan-Yuan Zhang; Yuan-Qing Li; Zhen-Kun Chen; Pei Huang; Shao-Yun Fu
Source:
ACS applied materials & interfaces 2022 v.14 no.11 pp. 13778-13789
ISSN:
1944-8252
Subject:
gels,   etc   ; carbon; contact angle; foams; humans; hydrophobicity; polyurethanes;     Show all 7 Subjects
Abstract:
... Herein, a multifunctional polyurethane (PU) composite foam with a hierarchical structure is fabricated by dip-coating a carbon nanotube/shear-thickening gel (CNT/STG) and spray-coating nano-SiO₂/STG on PU foam. The prepared nano-SiO₂/CNT/STG@PU (SCS@PU) composite foam is lightweight, highly compressive, electrically conductive, superhydrophobic, and impact-energy absorptive. As a result, it posses ...
DOI:
10.1021/acsami.2c01837

13. Novel acylhydrazone based chemosensor: “On-off” fluorescent and chromogenic detection of F− and Fe3+ with high selectivity and sensitivity

Author:
Aina Bai; Yongxin Zhang; Jiajie Tian; Yaodong Huang; Junjiao Yang
Source:
Tetrahedron 2022 pp. 132900
ISSN:
0040-4020
Subject:
gels,   etc   ; calcium; colorimetry; detection limit; fluorescence; fluorometry; wavelengths;     Show all 7 Subjects
Abstract:
... A novel acylhydrazone derivative B3 was designed and synthesized as a multichannel chemosensor. B3 formed stable gels with several organic solvents and aqueous THF (THF:H₂O = 4:1, v/v); good aggregation-induced emission (AIE) effects were observed, and each gel exhibited fluorescence. As a chemosensor, B3 detected F⁻ selectively and sensitively via both colorimetric and fluorometric responses with ...
DOI:
10.1016/j.tet.2022.132900

14. Photoswitchable Covalent Adaptive Networks Based on Thiol–Ene Elastomers

Author:
Kezi Cheng; Alex Chortos; Jennifer A. Lewis; David R. Clarke
Source:
ACS applied materials & interfaces 2022 v.14 no.3 pp. 4552-4561
ISSN:
1944-8252
Subject:
gels,   etc   ; crosslinking; polydimethylsiloxane; polyethylene glycol; polyurethanes; ultraviolet radiation;     Show all 6 Subjects
Abstract:
... Covalent adaptive networks combine the advantages of cross-linked elastomers and dynamic bonding in a single system. In this work, we demonstrate a simple one-pot method to prepare thiol–ene elastomers that exhibit reversible photoinduced switching from an elastomeric gel to fluid state. This behavior can be generalized to thiol–ene cross-linked elastomers composed of different backbone chemistrie ...
DOI:
10.1021/acsami.1c22287

15. Time-resolved pressure-induced electric potential in nanoporous membranes: Measurement and mechanistic interpretation

Author:
Pavel Apel; Stanisław Koter; Andriy Yaroshchuk
Source:
Journal of membrane science 2022 v.653 pp. 120556
ISSN:
0376-7388
Subject:
gels,   etc   ; electrolytes; energy conversion; models; nanopores; zeta potential;     Show all 6 Subjects
Abstract:
... Performance of charged nanoporous membranes in ion separations and electrokinetic energy conversion is controlled by their surface-charge density. This (or related such as zeta-potential) parameter has often been obtained from measurements of pressure-induced electric potential typically referred to as streaming potential. However, with nanoporous membranes in dilute electrolyte solutions, determi ...
DOI:
10.1016/j.memsci.2022.120556

16. Transition from Dendritic to Cell-like Crystalline Structures in Drying Droplets of Fetal Bovine Serum under the Influence of Temperature

Author:
Marina Efstratiou; John R. E. Christy; Daniel Bonn; Khellil Sefiane
Source:
Langmuir 2022 v.38 no.14 pp. 4321-4331
ISSN:
1520-5827
Subject:
gels,   etc   ; convection; crystallization; evaporation; fetal bovine serum; temperature;     Show all 6 Subjects
Abstract:
... The desiccation of biofluid droplets leads to the formation of complex deposits which are morphologically affected by the environmental conditions, such as temperature. In this work, we examine the effect of substrate temperatures between 20 and 40 °C on the desiccation deposits of fetal bovine serum (FBS) droplets. The final dried deposits consist of different zones: a peripheral protein ring, a ...
DOI:
10.1021/acs.langmuir.2c00019

17. A Comparison of Environmental Impact of Various Silicas Using a Green Chemistry Evaluator

Author:
Carlos Brambila; Peter Boyd; Amber Keegan; Pankaj Sharma; Caleb Vetter; Ettigounder Ponnusamy; Siddharth V. Patwardhan
Source:
ACS sustainable chemistry & engineering 2022 v.10 no.16 pp. 5288-5298
ISSN:
2168-0485
Subject:
gels,   etc   ; environmental impact; green chemistry; porous media; silica; wastes;     Show all 6 Subjects
Abstract:
... To answer questions surrounding the sustainability of silica production, MilliporeSigma’s DOZN 2.0 Green Chemistry Evaluator was employed as it provides quantitative values based on the 12 principles of Green Chemistry. As a first study using DOZN 2.0 to evaluate the greenness of nanomaterials, a range of silica types were considered and their greenness scores compared. These included low- and hig ...
DOI:
10.1021/acssuschemeng.2c00519

18. Biofilm carriers for anaerobic ammonium oxidation: Mechanisms, applications, and roles in mainstream systems

Author:
Dawen Gao; Yuqi Li; Hong Liang
Source:
Bioresource technology 2022 v.353 pp. 127115
ISSN:
0960-8524
Subject:
gels,   etc   ; ammonium; anaerobic ammonium oxidation; biofilm; biomass; nitrogen; technology;     Show all 7 Subjects
Abstract:
... The anaerobic ammonium oxidation (ANAMMOX) process was proposed as the most promising nitrogen removal process. Biofilm carriers were demonstrated to effectively enhance the anaerobic ammonium oxidating bacteria (AnAOB) retention. This paper reviews the effect of carrier properties on the AnAOB biofilm development according to the biofilm development process and the application state-of-art of thr ...
DOI:
10.1016/j.biortech.2022.127115

19. Customization of liquid-core sodium alginate beads by molecular engineering

Author:
Md Nazmus Saqib; Shabbir Ahammed; Fei Liu; Fang Zhong
Source:
Carbohydrate polymers 2022 v.284 pp. 119047
ISSN:
0144-8617
Subject:
gels,   etc   ; brittleness; dimerization; gel strength; liquids; sodium alginate; texture;     Show all 7 Subjects
Abstract:
... Detailed alginate molecular structural factors that modulated the texture of liquid core alginate beads were investigated. Under the same CaCl₂ concentration and contacting time, a higher bursting force can be generated from both high Mw and low M/G alginate beads. G-block took part in faster dimerization, producing a compact gel network and long chains providing an elastic response generated by i ...
DOI:
10.1016/j.carbpol.2021.119047

20. Desorption kinetics of antipsychotic drugs from sandy sediments by diffusive gradients in thin-films technique

Author:
Xiaowen Ji; Jonathan K. Challis; Jenna Cantin; Ana S. Cardenas Perez; Yufeng Gong; John P. Giesy; Markus Brinkmann
Source:
Science of the total environment 2022 v.832 pp. 155104
ISSN:
0048-9697
Subject:
gels,   etc   ; adsorption; antipsychotics; desorption; dynamic models; environment; sediments; toxicology;     Show all 8 Subjects
Abstract:
... Dynamic processes of organic contaminants in sediments can have important toxicological implications in aquatic systems. The current study used diffusive gradients in thin-films (DGT) devices in sandy sediments spiked with nine antipsychotics and in field sandy sediments. Samplers were deployed for 1 to 30 days to determine the flux of these compounds to DGT devices and the exchange rates between ...
DOI:
10.1016/j.scitotenv.2022.155104