European Polymer Journal

Article	Citations
Freeze/thawed polyvinyl alcohol hydrogels: Present, past and future	208
Molecularly imprinted polymers by the surface imprinting technique	198
An overview of dynamic covalent bonds in polymer material and their applications	176
Physically cross-linked chitosan-based hydrogels for tissue engineering applications: A state-of-the-art review	146
A review of etching methods of MXene and applications of MXene conductive hydrogels	136
The fabrication of antibacterial hydrogels for wound healing	133
Advances of molecularly imprinted polymers (MIP) and the application in drug delivery	125
Chemical extraction and modification of chitin and chitosan from shrimp shells	122
Surface and interface modification of aramid fiber and its reinforcement for polymer composites: A review	109
Bio-based poly (butylene succinate): Recent progress, challenges and future opportunities	106
Developments of PEEK (Polyetheretherketone) as a biomedical material: A focused review	106
Citric acid: A green cross-linker of biomaterials for biomedical applications	101
Biodegradable polymers in drug delivery and oral vaccination	100
Fabrication of PVA/PAAm IPN hydrogel with high adhesion and enhanced mechanical properties for body sensors and antibacterial activity	99
Recent advances in natural polymer-based hydroxyapatite scaffolds: Properties and applications	89
Reactive compatibilization and properties of low-cost and high-performance PBAT/thermoplastic starch blends	87
Functionalized polylysine biomaterials for advanced medical applications: A review	84
Poly (propylene imine) dendrimer as an emerging polymeric nanocarrier for anticancer drug and gene delivery	84
Compatibilization strategies and analysis of morphological features of poly(butylene adipate-co-terephthalate) (PBAT)/poly(lactic acid) PLA blends: A state-of-art review	81
Polymer blends and polymer composites for cardiovascular implants	77
Pectin hydrogels, aerogels, cryogels and xerogels: Influence of drying on structural and release properties	76
Polymer-based biomaterials for pharmaceutical and biomedical applications: A focus on topical drug administration	75
Major factors affecting the characteristics of starch based biopolymer films	74
Advanced polymer-based composites and structures for biomedical applications	72
Coaxial and emulsion electrospinning of extracted hyaluronic acid and keratin based nanofibers for wound healing applications	72

Ultra-low dielectric constant polyimides: Combined efforts of fluorination and micro-branched crosslink structure	70
Main-chain water-soluble polyphosphoesters: Multi-functional polymers as degradable PEG-alternatives for biomedical applications	68
Synergistic effects of conductive PVA/PEDOT electrospun scaffolds and electrical stimulation for more effective neural tissue engineering	68
Recent advances in biodegradable polymers – Properties, applications and future prospects	67
Review on recent advances in 4D printing of shape memory polymers	67
Phosphate-based covalent adaptable networks with recyclability and flame retardancy from bioresources	67
Recent advances in electrospun nanofibers for wound dressing	66
Thermal and flame-retardant properties of intrinsic flame-retardant epoxy resin containing biphenyl structures and phosphorus	65
A review of fused deposition modelling for 3D printing of smart polymeric materials and composites	65
Soy protein-based adhesive with superior bonding strength and water resistance by designing densely crosslinking networks	63
Carboxymethylcellulose/polyacrylic acid/starch-modified Fe3O4 interpenetrating magnetic nanocomposite hydrogel beads as pH-sensitive carrier for oral anticancer drug delivery system	63
Coaxial electrospun membranes with thermal energy storage and shape memory functions for simultaneous thermal/moisture management in personal cooling textiles	63
From gas release to foam synthesis, the second breath of blowing agents	62
Recent advances in superhydrophobic surfaces for practical applications: A review	62
Superior radical scavenging and catalytic carbonization capacities of bioderived assembly modified ammonium polyphosphate as a mono-component intumescent flame retardant for epoxy resin	62
Advances and challenges in conductive hydrogels: From properties to applications	60
Mechanical and thermal properties of electrospun polyimide/rGO composite nanofibers via in-situ polymerization and in-situ thermal conversion	60
Design of photoinitiating systems based on the chalcone-anthracene scaffold for LED cationic photopolymerization and application in 3D printing	60
A review on recent advances of Protein-Polymer hydrogels	57
Photoinitiators of polymerization with reduced environmental impact: Nature as an unlimited and renewable source of dyes	57
Blends and composites of polyhydroxyalkanoates (PHAs) and their applications	56
The use of TPGS in drug delivery systems to overcome biological barriers	56
POSS hybrid hydrogels: A brief review of synthesis, properties and applications	56
Enhanced piezoelectric performance of PVDF/BiCl3/ZnO nanofiber-based piezoelectric nanogenerator	56
A recyclable vanillin-based epoxy resin with high-performance that can compete with DGEBA	56
Glycerol: Its properties, polymer synthesis, and applications in starch based films	56
Exploring dendrimer-based drug delivery systems and their potential applications in cancer immunotherapy	55
Challenges in developing of chitosan – Based polyelectrolyte complexes as a platform for mucosal and skin drug delivery	55
Advances in development of the dendrimers having natural saccharides in their structure for efficient and controlled drug delivery applications	55
A review on wound dressings: Antimicrobial agents, biomaterials, fabrication techniques, and stimuli-responsive drug release	54
Recent advances on coumarin-based photoinitiators of polymerization	54
Adhesion mechanism and application progress of hydrogels	54
Electrospraying: A facile technology unfolding the chitosan based drug delivery and biomedical applications	53
An insight into aptamer engineered dendrimer for cancer therapy	53
Recent advances on chalcone-based photoinitiators of polymerization	53
Recent advancements in α-diimine-nickel and -palladium catalysts for ethylene polymerization	52
Functional role of crosslinking in alginate scaffold for drug delivery and tissue engineering: A review	51
A simple, quick, and cost-effective strategy to fabricate polycaprolactone/silk fibroin nanofiber yarns for biotextile-based tissue scaffold application	51
Furan-containing polymeric Materials: Harnessing the Diels-Alder chemistry for biomedical applications	50
3D printing of PLA composites scaffolds reinforced with keratin and chitosan: Effect of geometry and structure	49
Post-metallocene catalysts for the synthesis of ultrahigh molecular weight polyethylene: Recent advances	49
Review on the preparation, biological activities and applications of curdlan and its derivatives	49
N-ethyl carbazole-1-allylidene-based push-pull dyes as efficient light harvesting photoinitiators for sunlight induced polymerization	48
New hybrid MOF/polymer composites for the photodegradation of organic dyes	48
Cellulose nanocrystals from agricultural resources: Extraction and functionalisation	47
Designing cryogels through cryostructuring of polymeric matrices for biomedical applications	47
Strong and recyclable soybean oil-based epoxy adhesives based on dynamic borate	46
Folic acid conjugated poly(amidoamine) dendrimer as a smart nanocarriers for tracing, imaging, and treating cancers over-expressing folate receptors	46
Toughening and strengthening epoxy resins with a new bi-DOPO biphenyl reactive flame retardant	45
Synthesis and characterization of renewable polyurethane foams using different biobased polyols from olive oil	45

Ultrastable two-dimensional fluorescent conjugated microporous polymers containing pyrene and fluorene units for metal ion sensing and energy storage	44
Poly(3-hydroxybutyrate-co-3-hydroxyhexanoate) (PHBH): Synthesis, properties, and applications - A review	44
High-performance and fully recyclable epoxy resins cured by imine-containing hardeners derived from vanillin and syringaldehyde	44
Recent advances on ferrocene-based photoinitiating systems	44
Bioactive wound dressing using bacterial cellulose loaded with papain composite: Morphology, loading/release and antibacterial properties	43
Material, antibacterial and anticancer properties of natural polyphenols incorporated soy protein isolate: A review	43
Nano-bio finishing of cotton fabric with quaternized chitosan Schiff base-TiO2-ZnO nanocomposites for antimicrobial and UV protection applications	43
Tunable modalities in polyolefin synthesis via coordination insertion catalysis	43
Biobased 2,5-furandicarboxylic acid (FDCA) and its emerging copolyesters’ properties for packaging applications	43
Recent advances on visible light Phenothiazine-based photoinitiators of polymerization	43
High-performance sunlight induced polymerization using novel push-pull dyes with high light absorption properties	42
Chitosan-based drug delivery systems: Current strategic design and potential application in human hard tissue repair	42
Starch and itaconic acid-based superabsorbent hydrogels for agricultural application	42
Antibacterial and hemostatic bilayered electrospun nanofibrous wound dressings based on quaternized silicone and quaternized chitosan for wound healing	42
Epoxy/hollow glass microsphere syntactic foams for structural and functional application-A review	41
Shape memory composite hydrogel based on sodium alginate dual crosslinked network with carboxymethyl cellulose	41
Ionic tactile sensors as promising biomaterials for artificial skin: Review of latest advances and future perspectives	41
Natural polysaccharides: Chemical properties and application in pharmaceutical formulations	41
Synthesis of colorless polyimides with high Tg from asymmetric twisted benzimidazole diamines	41
Emerging application of magnetic nanoparticles for breast cancer therapy	41
Production and characterization of hybrid nanofiber wound dressing containing Centella asiatica coated silver nanoparticles by mutual electrospinning method	41
Polyoxazoline: A review article from polymerization to smart behaviors and biomedical applications	40
Recent advances on visible light photoinitiators of polymerization based on Indane-1,3-dione and related derivatives	39
Polydopamine films: Electrochemical growth and sensing applications	39
A comprehensive overview of common conducting polymer-based nanocomposites; Recent advances in design and applications	39
A perspective on the wet spinning process and its advancements in biomedical sciences	39
PLA bioplastic production: From monomer to the polymer	39
Facile synthesis of phosphorus-containing benzotriazole flame retardant for enhancement of mechanical and fire properties of epoxy resins	38
Polymer chemistry underpinning materials for triboelectric nanogenerators (TENGs): Recent trends	38
Preparation of carboxylated lignin-based epoxy resin with excellent mechanical properties	38
Poly(alkylene terephthalate)s: From current developments in synthetic strategies towards applications	38
Sulfur-based oxidation-responsive polymers. Chemistry, (chemically selective) responsiveness and biomedical applications	38
Mechanical and thermal properties of poly(lactic acid) plasticized with dibutyl maleate and fumarate isomers: Promising alternatives as biodegradable plasticizers	38
Design of keto-coumarin based photoinitiator for Free Radical Photopolymerization: Towards 3D printing and photocomposites applications	38
Recent advances in biopolymer-based formulations for wound healing applications	38
Preparation and antimicrobial activity of pectin-chitosan embedding nisin microcapsules	38
Research progress of poly(methyl methacrylate) microspheres: Preparation, functionalization and application	38
Amylopectin based hydrogel strain sensor with good biocompatibility, high toughness and stable anti-swelling in multiple liquid media	37
Dendrimers as prospective nanocarrier for targeted delivery against lung cancer	37
Hydrogels differentiated by length scales: A review of biopolymer-based hydrogel preparation methods, characterization techniques, and targeted applications	37
Dual anticancer drug delivery of D-galactose-functionalized stimuli-responsive nanogels for targeted therapy of the liver hepatocellular carcinoma	37
Guar gum/gellan gum interpenetrating-network self-healing hydrogels for human motion detection	37
The future of poly(2-oxazoline)s	37
Ultrahigh thermal-stability polyimides with low CTE and required flexibility by formation of hydrogen bonds between poly(amic acid)s	37
Electrospinning of cellulose using ionic liquids: An overview on processing and applications	37
Nitrogen and phosphorus co-doped carbon dots for developing highly flame retardant poly (vinyl alcohol) composite films	37
Effect of crosslink structure on mechanical properties, thermal stability and flame retardancy of natural flavonoid based epoxy resins	37
Switching (bio-) adhesion and friction in liquid by stimulus responsive polymer coatings	36
Thermoresponsive nanocomposite hydrogels based on Gelatin/poly (N–isopropylacrylamide) (PNIPAM) for controlled drug delivery	36
Recent advances on carbazole-based oxime esters as photoinitiators of polymerization	36
Chitosan-based nanoscale and non-nanoscale delivery systems for anticancer drugs: A review	36
Cutting-edge development in dendritic polymeric materials for biomedical and energy applications	36
Hyperbranched Polymer-based Nanocomposites: Synthesis, Progress, and Applications	36
Components, mechanisms and applications of stimuli-responsive polymer gels	36
Light-responsive shape memory polymer composites	35
Fabrication of a smart and biocompatible brush copolymer decorated on magnetic graphene oxide hybrid nanostructure for drug delivery application	35
Bioinspired marine antifouling coatings: Antifouling mechanisms, design strategies and application feasibility studies	35
Synthesis, characterization and potential applications of Poly(o-phenylenediamine) based copolymers and Nanocomposites: A comprehensive review	34
Fully recyclable carbon fiber reinforced vanillin-based epoxy vitrimers	34
Hyperbranched flame retardant to simultaneously improve the fire-safety, toughness and glass transition temperature of epoxy resin	34
Recent advances on squaraine-based photoinitiators of polymerization	34
Greener therapeutic pH-sensing wound dressing based on Curcuma Longa and cellulose hydrogel	34
Development of modified and multifunctional poly(glycerol sebacate) (PGS)-based biomaterials for biomedical applications	34
Taxanes loaded polymersomes as an emerging polymeric nanocarrier for cancer therapy	34
Vitrimer-like material based on a biorenewable elastomer crosslinked with a dimeric fatty acid	34
Preparation and characterization of organic soluble polyimides with low dielectric constant containing trifluoromethyl for optoelectronic application	33
Synthesis and properties of biobased mono-benzoxazine resins from natural renewable pterostilbene	33
Recent progress in polymer-based optical chemosensors for Cu2+ and Hg2+ Ions: A comprehensive review	33
Effect of powder recycling on anisotropic tensile properties of selective laser sintered PA2200 polyamide	33
4D printing: Pragmatic progression in biofabrication	33
Promising grafting strategies on cellulosic backbone through radical polymerization processes – A review	33
A systematic review of polymer composite in biomedical engineering	33
Dynamic cross-linked polyurethane hot-melt adhesive with high biomass content and high adhesive strength simultaneously	32
Dual responsive molecularly imprinted polymers based on UiO-66-DOX for selective targeting tumor cells and controlled drug release	32
Riboflavin-induced metal-free ATRP of (meth)acrylates	32
Recent advances on visible light Coumarin-based oxime esters as initiators of polymerization	32
Pyrylium salt as a visible-light-induced photoredox catalyst for polymer and organic synthesis – Perspectives on catalyst design and performance	32
Local co-delivery of 5-fluorouracil and curcumin using Schiff's base cross-linked injectable hydrogels for colorectal cancer combination therapy	32
A review on recently proposed oxime ester photoinitiators	32
Strong anti-polyelectrolyte zwitterionic hydrogels with superior self-recovery, tunable surface friction, conductivity, and antifreezing properties	32

Insertion copolymerization of functional olefins: Quo Vadis?	31
Synthesis and properties of transparent random and multi-block polyamide-imide films with high modulus and low CTE	31
Carbon nanotube-based biocompatible polymer nanocomposites as an emerging tool for biomedical applications	31
Applications of adhesives in textiles: A review	31
Bioinspired fabrication of self-recovery, adhesive, and flexible conductive hydrogel sensor driven by dynamic borate ester bonds and tannic acid-mediated noncovalent network	31
Recent advances in nanoparticle-based approaches for the treatment of brain tumors: Opportunities and challenges	31
Prediction of drug-carrier interactions of PLA and PLGA drug-loaded nanoparticles by molecular dynamics simulations	31
Hollow microcapsule with pH-sensitive chitosan/polymer shell for in vitro delivery of curcumin and gemcitabine	31
Natural rubber degradation products: Fine chemicals and reuse of rubber waste	31
5,12-Dihydroindolo[3,2-a]carbazole: A promising scaffold for the design of visible light photoinitiators of polymerization	31
Ultrafast microwave assisted recycling of PET to a family of functional precursors and materials	31
Thermoplastic starch plasticized by polymeric ionic liquid	30
UV-resistant transparent lignin-based polyurethane elastomer with repeatable processing performance	30
Highly efficient adsorbent material for removal of methylene blue dye based on functionalized polyacrylonitrile	30
A bio-based intumescent flame retardant with biomolecules functionalized ammonium polyphosphate enables polylactic acid with excellent flame retardancy	30
Poly(2-oxazine)s: A comprehensive overview of the polymer structures, physical properties and applications	30
Interpenetrating polymer network hydrogels using natural based dyes initiating systems: Antibacterial activity and 3D/4D performance	30
Fluorinated low molecular weight poly(phenylene oxide): Synthesis, characterization, and application in epoxy resin toward improved thermal and dielectric properties	30
Influence of plasticiser type and nanoclay on the properties of chitosan-based materials	30
Innovative solutions and challenges to increase the use of Poly(3-hydroxybutyrate) in food packaging and disposables	30
Chitosan biopolymer, its derivatives and potential applications in nano-therapeutics: A comprehensive review	30
New hybrid perovskites/polymer composites for the photodegradation of organic dyes	30
Effect of bio-based polyols and chain extender on the microphase separation structure, mechanical properties and morphology of rigid polyurethane foams	30
Polymerization mechanism of 1,3-benzoxazine catalyzed by PCl5 and rearrangement of chemical structures	30
Characterization of self-healing hydrogels for biomedical applications	30
Preparation and characterization of antibacterial polyvinyl alcohol/chitosan sponge and potential applied for wound dressing	30
Comparison of microwave-assisted and thermal-heated synthesis of P(HEMA-co-AM)/PVA interpenetrating polymer network (IPN) hydrogels for Pb(II) removal from aqueous solution: Characterization, adsorpti	29
Stimuli-Responsive nanocellulose Hydrogels: An overview	29
Self-Healing Elastomers: A sustainable solution for automotive applications	29
Recent advances and perspectives of shape memory polymer fibers	29
Hydrophobic lignin/polyurethane composite foam: An eco-friendly and easily reusable oil sorbent	29
Effect of simultaneously introduced bulky pendent group and amide unit on optical transparency and dimensional stability of polyimide film	29
The new LED-Sensitive photoinitiators of Polymerization: Copper complexes in free radical and cationic photoinitiating systems and application in 3D printing	29
Study on the microscopic characteristics and rheological properties of thermal-oxidative aged and virgin-old recycled asphalts	29
Thermal latent and Low-Temperature polymerization of a Bio-Benzoxazine resin from natural renewable chrysin and furfurylamine	29
Evaluating the commercial application potential of polyesters with 1,4:3,6-dianhydrohexitols (isosorbide, isomannide and isoidide) by reviewing the synthetic challenges in step growth polymerization	29
Poly(1,4-butylene -co-1,4-cyclohexanedimethylene 2,5-furandicarboxylate) copolyester: Potential bio-based engineering plastic	29
Synthesis and characterization of the non-isocyanate poly(carbonate-urethane)s obtained via polycondensation route	29
Preparation and molecular dynamics study of polyurethane damping elastomer containing dynamic disulfide bond and multiple hydrogen bond	29
Polymer Nanocomposites: Role of modified filler content and interfacial interaction on crystallization	29
Photocurable extended vanillin-based resin for mechanically and chemically recyclable, self-healable and digital light processing 3D printable thermosets	29
Advances in adhesive hydrogels for tissue engineering	29
Novel compatibilizers and plasticizers developed from epoxidized and maleinized chia oil in composites based on PLA and chia seed flour	28
Dynamic chemistry: The next generation platform for various elastomers and their mechanical properties with self-healing performance	28
Constructing anhydrous proton exchange membranes through alternate depositing graphene oxide and chitosan on sulfonated poly(vinylidenefluoride) or sulfonated poly(vinylidene fluoride-co-hexafluoropro	28
Preparation of biodegradable, and pH-sensitive poly(azomethine)-chitosan hydrogels for potential application of 5-fluoro uracil delivery	28
3D printing of magneto-active smart materials for advanced actuators and soft robotics applications	28
Display of hidden properties of flexible aerogel based on bacterial cellulose/polyaniline nanocomposites with helping of multiscale modeling	28
Toward enabling manufacturing paradigm of 4D printing of shape memory materials: Open literature review	28
Preparation of room-temperature self-healing elastomers with high strength based on multiple dynamic bonds	28
Poly (β‐amino esters) based potential drug delivery and targeting polymer; an overview and perspectives (review)	28
Improving the performance of quaternized SEBS based anion exchange membranes by adjusting the functional group and side chain structure	28
A resveratrol-based epoxy resin with ultrahigh Tg and good processability	28
The effect of matrix on shape properties of aromatic disulfide based epoxy vitrimers	28
Synthesis of novel plant oil-based isocyanate-free urethane coatings and study of their anti-corrosion properties	28
Molecularly imprinted polymers as the epitome of excellence in multiple fields	27
A concise review on design and control of structured natural rubber latex particles as engineering nanocomposites	27
Recent advances on visible light Triphenylamine-based photoinitiators of polymerization	27
Current advances of Polyurethane/Graphene composites and its prospects in synthetic leather: A review	27
Chitosan/mesoporous silica hybrid aerogel with bactericidal properties as hemostatic material	27
Glucose-responsive hydrogel-based microneedles containing phenylborate ester bonds and N-isopropylacrylamide moieties and their transdermal drug delivery properties	27
Recent advances on perylene-based photoinitiators of polymerization	27
Advanced functionalized nanographene oxide as a biomedical agent for drug delivery and anti-cancerous therapy: A review	27
Soybean oil-derived non-isocyanate polyurethanes containing azetidinium groups as antibacterial wound dressing membranes	27
Multi-stimuli responsive hydrogels with shape memory and self-healing properties for information encryption	27
Recent advances of sustainable Short-chain length polyhydroxyalkanoates (Scl-PHAs) – Plant biomass composites	26
High-biobased-content UV-curable oligomers derived from tung oil and citric acid: Microwave-assisted synthesis and properties	26
A bioactive porous scaffold containing collagen/ phosphorous-modified polycaprolactone for osteogenesis of adipose-derived mesenchymal stem cells	26
High strength and flame retardant soybean polysaccharide-based wood adhesive produced by borate chemistry and crosslinking strategy	26
Fully rosin-based epoxy vitrimers with high mechanical and thermostability properties, thermo-healing and closed-loop recycling	26
A high-strength, environmentally stable, self-healable, and recyclable starch/PVA organohydrogel for strain sensor	26
Self-healing thermoplastic elastomeric materials: Challenges, opportunities and new approaches	26
Photoluminescent folic acid functionalized biocompatible and stimuli-responsive nanostructured polymer brushes for targeted and controlled delivery of doxorubicin	26
Crosslinked bacterial cellulose hydrogels for biomedical applications	26
An efficient cold-resistant strategy: Synthesis and application of green cold-resistant bio-based plasticizer for poly(vinyl chloride)	26
Overview of antimicrobial polyurethane-based nanocomposite materials and associated signalling pathways	26
Tailoring of conducting polymers via copolymerization – A review	26
Dual-curing propargyl-phthalonitrile imide-based thermoset: Synthesis, characterization and curing behavior	25
A highly stretchable and room temperature autonomous self-healing supramolecular organosilicon elastomer with hyperbranched structure	25
Low dielectric and high performance of epoxy polymer via grafting POSS dangling chains	25
Sodium Alginate/carboxymethyl chitosan-CuO hydrogel beads as a pH-sensitive carrier for the controlled release of curcumin	25
Facile preparation of a phenolic aerogel with excellent flexibility for thermal insulation	25
Preparation of mechanically robust and autonomous self-healable elastomer based on multiple dynamic interactions	25
Bioactive glass with biocompatible polymers for bone applications	25
Design and optimization of polymerization parameters of carboxymethyl chitosan and sodium 2-acrylamido-2-methylpropane sulfonate hydrogels as wound dressing materials	25
An in vitro study on the key features of Poly L-lactic acid/biphasic calcium phosphate scaffolds fabricated via DLP 3D printing for bone grafting	25
Enhanced anti-biofouling ability of polyurethane anti-cavitation coating with ZIF-8: A comparative study of various sizes of ZIF-8 on coating	25
Plant-based biocomposite films as potential antibacterial patches for skin wound healing	25
Comparative adhesion of chemically and physically crosslinked poly(acrylic acid)-based hydrogels to soft tissues	24
Synthesis and characterization of biocompatible semi-interpenetrating polymer networks based on polyurethane and cross-linked poly (acrylic acid)	24
Concomitant initiation of radical and cationic polymerisations using new copper complexes as photoinitiators: Synthesis and characterisation of acrylate/epoxy interpenetrated polymer networks	24
Lightweight and flexible silicone rubber foam with dopamine grafted multi-walled carbon nanotubes and silver nanoparticles using supercritical foaming technology: Its preparation and electromagnetic i	24
Cyclodextrin-containing redox-responsive nanogels: Fabrication of a modular targeted drug delivery system	24
Construction of hetero-structured nanohybrid relying on reactive phosphazene towards flame retardation and mechanical enhancement of epoxy resins	24
Programmable photo-responsive self-healing hydrogels for optical information coding and encryption	24