U.S. flag

An official website of the United States government

PubAg

Main content area

You searched for: Journal ACS applied materials & interfaces Remove constraint Journal: ACS applied materials & interfaces Publication Year 2020 Remove constraint Publication Year: 2020 Subject chitosan Remove constraint Subject: chitosan
Start Over

Search

37  Search Results

« Previous | 1 - 20 of 37 |
Number of results to display per page

Search Results

1. Intelligent Hybrid Hydrogels for Rapid In Situ Detection and Photothermal Therapy of Bacterial Infection

Author:
Wang, Haoping; Zhou, Sirong; Guo, Lixia; Wang, Yunxia; Feng, Liheng
Source:
ACS applied materials & interfaces 2020 v.12 no.35 pp. 39685-39694
ISSN:
1944-8252
Subject:
Staphylococcus aureus; antibacterial properties; bacteria; bacterial infections; biofilm; chitosan; color; cytotoxicity; drug resistance; fever; hydrogels; irradiation; mice; near infrared radiation; near-infrared spectroscopy; photothermotherapy; polymers; thermosensitivity
Abstract:
... Diseases induced by bacterial infections increasingly threaten the health of people all over the world; thus, it is urgent and significant to early diagnose and effectively eliminate infections to save people’s lives. To this end, we synthesized an intelligent hydrogel that integrated in situ visualized diagnosis and photothermal therapy of bacterial infections. By simply and subtly incorporating ...
DOI:
10.1021/acsami.0c12355

2. Multifunctional Tissue-Adhesive Cryogel Wound Dressing for Rapid Nonpressing Surface Hemorrhage and Wound Repair

Author:
Li, Meng; Zhang, Zhiyi; Liang, Yongping; He, Jiahui; Guo, Baolin
Source:
ACS applied materials & interfaces 2020 v.12 no.32 pp. 35856-35872
ISSN:
1944-8252
Subject:
adhesion; antioxidant activity; antioxidants; blood platelets; cell adhesion; chitosan; coagulation; cryogels; gelatin; hemorrhage; hemostasis; liver; models; rabbits; rats; strength (mechanics); swine; tissue repair
Abstract:
... Cryogels with tissue adhesion have great potential as wound dressings for rapid hemostasis for uncontrollable nonpressing surface hemorrhage and wound healing, but their use has not been reported previously. Herein, we designed a series of antibacterial and antioxidant tissue-adhesive cryogels based on quaternized chitosan (QCS) and polydopamine (PDA). These cryogels had good blood cell and platel ...
DOI:
10.1021/acsami.0c08285

3. Peptide Chitosan/Dextran Core/Shell Vascularized 3D Constructs for Wound Healing

Author:
Turner, Paul R.; Murray, Eoin; McAdam, C. John; McConnell, Michelle A.; Cabral, Jaydee D.
Source:
ACS applied materials & interfaces 2020 v.12 no.29 pp. 32328-32339
ISSN:
1944-8252
Subject:
aldehydes; artificial skin; biocompatible materials; biomimetics; bioprinting; cell adhesion; cell viability; chitosan; crosslinking; dextran; extrusion; fluorescent antibody technique; gelatin; human umbilical vein endothelial cells; humans; mesenchymal stromal cells; peptides; proteolysis; staining; tissue repair
Abstract:
... Three-dimensional (3D) bioprinting has emerged to create novel cell-based therapies for regenerative medicine applications. Vascularized networks within engineered constructs are required, and toward this end, we report a promising strategy using core-shell (c/s) extrusion 3D-bioprinting technology that employs biomimetic biomaterials to construct regenerative, prevascularized scaffolds for wound ...
DOI:
10.1021/acsami.0c07212

4. Hierarchical Assembly of Nanocellulose into Filaments by Flow-Assisted Alignment and Interfacial Complexation: Conquering the Conflicts between Strength and Toughness

Author:
Cai, Yuhua; Geng, Lihong; Chen, Song; Shi, Shuo; Hsiao, Benjamin S.; Peng, Xiangfang
Source:
ACS applied materials & interfaces 2020 v.12 no.28 pp. 32090-32098
ISSN:
1944-8252
Subject:
biocompatibility; calcium; cell walls; cellulose; cellulose nanofibers; chitosan; crosslinking; molecular dynamics; nacre; simulation models; spinning; sutures; tensile strength
Abstract:
... Filaments comprising solely cellulose nanofibrils (CNFs) have been fabricated by flow-assisted assembling, where the strength can be improved greatly with the sacrifice of toughness. Inspired by the architecture of natural nacre and plant cell wall, the combined technique of convergent microfluidic spinning and in situ interfacial complexation between CNF and chitosan molecules was used to constru ...
DOI:
10.1021/acsami.0c04504

5. Water-Based Dual-Cross-Linked Polymer Binders for High-Energy-Density Lithium–Sulfur Batteries

Author:
Yi, Huan; Yang, Yu; Lan, Tu; Zhang, Tian; Xiang, Shuhuai; Tang, Tian; Zeng, Hongbo; Wang, Chaoyang; Cao, Yuliang; Deng, Yonghong
Source:
ACS applied materials & interfaces 2020 v.12 no.26 pp. 29316-29323
ISSN:
1944-8252
Subject:
cathodes; chitosan; crosslinking; electrolytes; energy density; lithium; lithium batteries; mechanical properties; polymers; sulfur; urea
Abstract:
... High-mass-loading electrodes with long-term stability have long been a great challenge for lithium–sulfur batteries (LSBs), since the conventional binders are unable to cope with the shuttling of lithium polysulfides and the structural damage in an electrode. Here, a novel water-based polymer, polyphosphate acid cross-linked chitosan ethylamide carbamide (PACEC), is developed as a binder to constr ...
DOI:
10.1021/acsami.0c05910

6. Self-Quenched Polysaccharide Nanoparticles with a Reactive Oxygen Species-Sensitive Cascade for Enhanced Photodynamic Therapy

Author:
Uthaman, Saji; Kim, Yugyeong; Lee, Ji Young; Pillarisetti, Shameer; Huh, Kang Moo; Park, In-Kyu
Source:
ACS applied materials & interfaces 2020 v.12 no.25 pp. 28004-28013
ISSN:
1944-8252
Subject:
antineoplastic activity; chitosan; cleavage (chemistry); nanocarriers; nanoparticles; near infrared radiation; neoplasms; oxygen; photochemotherapy; photosensitizing agents; phototoxicity; reactive oxygen species; water solubility
Abstract:
... Tumor microenvironment (TME)-responsive nanocarrier systems that keep the photosensitizer (PS) inactive during systemic circulation and then efficiently release or activate the PS in response to unique TME conditions have attracted much attention. Herein, we report novel TME-responsive, self-quenched polysaccharide nanoparticles (NPs) with a reactive oxygen species (ROS)-sensitive cascade. The PS, ...
DOI:
10.1021/acsami.0c06311

7. Multi-Responsive Lanthanide-Based Hydrogel with Encryption, Naked Eye Sensing, Shape Memory, Self-Healing, and Antibacterial Activity

Author:
Zhou, Qi; Dong, Xuelin; Xiong, Yuxiang; Zhang, Binbin; Lu, Shan; Wang, Qin; Liao, Yonggui; Yang, Yajiang; Wang, Hong
Source:
ACS applied materials & interfaces 2020 v.12 no.25 pp. 28539-28549
ISSN:
1944-8252
Subject:
antibacterial properties; chitosan; color; europium; gelatin; glucose; hydrogels; ions; luminescence; mechanical properties; medicine; phase transition; temperature
Abstract:
... In this work, we reported a multi-responsive luminescent hydrogel with properties of encryption, naked eye sensing of glucose, shape memory, self-healing, and antibacterial activity. The hydrogel (GA/CCS/DNSA/Eu³⁺) was obtained by mixing phenylboronic acid-modified gelatin (GA-DBA), catechol-modified carboxymethyl chitosan (CCS-PCA), 3,5-dinitrosalicylic acid (DNSA), and Eu³⁺ ions through a facile ...
DOI:
10.1021/acsami.0c06674

8. Bioinspired Nanofibril-Humped Fibers with Strong Capillary Channels for Fog Capture

Author:
Liu, Yufang; Yang, Nan; Gao, Chunlei; Li, Xin; Guo, Zhenyu; Hou, Yongping; Zheng, Yongmei
Source:
ACS applied materials & interfaces 2020 v.12 no.25 pp. 28876-28884
ISSN:
1944-8252
Subject:
anisotropy; chitosan; droplets; engineering; filtration; harvesting; nanofibers; polyesters; spidroins; thermoplastics
Abstract:
... Bioinspired nanofibril-humped fibers (BNFs) are fabricated by using thermoplastic polyester elastomer and chitosan, via combining the electrospinning technique and fluid coating method to achieve periodic humps composed of interlaced random nanofibrils and a joint composed of aligned nanofibrils, which are highly similar to the micro/nanostructures of wetted spider silk. Especially, nanofibrils ca ...
DOI:
10.1021/acsami.0c06945

9. Electroless Deposition of Automatically Shedded Thin Copper Foils

Author:
Wei, Chaolong; Tang, Jiancheng; Xu, Guojun; Xia, Shuhui; Ye, Nan; Zhao, Yuchao; Yan, Jianhua
Source:
ACS applied materials & interfaces 2020 v.12 no.25 pp. 28831-28839
ISSN:
1944-8252
Subject:
anodes; atomization; batteries; chitosan; collectors; copper; energy density; glass; graphene; modulus of elasticity; nickel
Abstract:
... Electroless deposition (ELD) is a process widely used for the production of thin metal films, but stripping the films from the substrate remains challenging. Here, we report a low-cost ELD method for the large-scale production of freestanding copper (Cu) foils in a short time of 25–55 min. By atomizing a thin (<100 nm) sacrificial layer of chitosan with weak glycosyl bonds and a high degree of dea ...
DOI:
10.1021/acsami.0c05987

10. Unraveling the Structural Landscape of Chitosan-Based Heparan Sulfate Mimics Binding to Growth Factors: Deciphering Structural Determinants for Optimal Activity

Author:
Revuelta, Julia; Aranaz, Inmaculada; Acosta, Niuris; Civera, Concepción; Bastida, Agatha; Peña, Nerea; Monterrey, Dianelis T.; Doncel-Pérez, Ernesto; Garrido, Leoncio; Heras, Ángeles; García-Junceda, Eduardo; Fernández-Mayoralas, Alfonso
Source:
ACS applied materials & interfaces 2020 v.12 no.23 pp. 25534-25545
ISSN:
1944-8252
Subject:
active sites; bioactive properties; cell proliferation; chitosan; electrostatic interactions; growth factors; heparan sulfate; landscapes; sulfates
Abstract:
... Chitosan sulfates have demonstrated the ability to mimic heparan sulfate (HS) function. In this context, it is crucial to understand how the specific structural properties of HS domains determine their functionalities and biological activities. In this study, several HS-mimicking chitosans have been prepared to mimic the structure of HS domains that have proved to be functionally significant in ce ...
DOI:
10.1021/acsami.0c03074

11. Freezing-Tolerant, Highly Sensitive Strain and Pressure Sensors Assembled from Ionic Conductive Hydrogels with Dynamic Cross-Links

Author:
Liu, Hongyan; Wang, Xing; Cao, Yanxia; Yang, Yanyu; Yang, Yatian; Gao, Yafei; Ma, Zhanshan; Wang, Jianfeng; Wang, Wanjie; Wu, Decheng
Source:
ACS applied materials & interfaces 2020 v.12 no.22 pp. 25334-25344
ISSN:
1944-8252
Subject:
chitosan; cold tolerance; crosslinking; deformation; durability; electronics; ferric chloride; freezing; humans; hydrogels; ions; soaking; temperature
Abstract:
... Conductive hydrogels have attracted intensive attention for versatile functions in flexible electronics because of their unique combination of mechanical flexibility and conductivity. However, hydrogels containing plenty of water inevitably freeze at subzero temperature, leading to invalid electronics with failed mechanical advantages and negligible conductivity. Moreover, the inferior elasticity ...
DOI:
10.1021/acsami.0c06067

12. Cold to Hot: Binary Cooperative Microneedle Array-Amplified Photoimmunotherapy for Eliciting Antitumor Immunity and the Abscopal Effect

Author:
Chen, Minglong; Quan, Guilan; Wen, Ting; Yang, Peipei; Qin, Wanbing; Mai, Haoting; Sun, Ying; Lu, Chao; Pan, Xin; Wu, Chuanbin
Source:
ACS applied materials & interfaces 2020 v.12 no.29 pp. 32259-32269
ISSN:
1944-8252
Subject:
antigens; chitosan; crosslinking; cytokines; dendritic cells; encapsulation; gels; heat; immune response; immunostimulants; immunosuppression; indoleamine 2,3-dioxygenase; lungs; melanoma; metastasis; nanoparticles; near infrared radiation; photosensitizing agents; photothermotherapy; polyvinyl alcohol; polyvinylpyrrolidone; secretion
Abstract:
... In this study, an ingenious core–shell structure microneedle (CSMN) array was designed to synergistically boost robust immune response by the intralesional codelivery of photosensitizer and indoleamine 2,3-dioxygenase (IDO) blockade. Photosensitizer indocyanine green was encapsulated into chitosan nanoparticles (ICG-NPs), followed by concentrating on the tip shell of microneedles. 1-Methyl-tryptop ...
DOI:
10.1021/acsami.0c05090

13. Superclear, Porous Cellulose Membranes with Chitosan-Coated Nanofibers for Visualized Cutaneous Wound Healing Dressing

Author:
Xia, Jian; Zhang, Hao; Yu, Faquan; Pei, Ying; Luo, Xiaogang
Source:
ACS applied materials & interfaces 2020 v.12 no.21 pp. 24370-24379
ISSN:
1944-8252
Subject:
Escherichia coli; Fourier transform infrared spectroscopy; Staphylococcus aureus; X-ray diffraction; antibacterial properties; biocompatibility; biopolymers; cellulose; chitosan; coagulation; cytotoxicity; differential scanning calorimetry; hydrophilicity; mice; models; nanofibers; permeability; scanning electron microscopy; spinning; tissue repair; transmittance; wettability
Abstract:
... Easy and rapid continuous large-scale industrial production of transparent visualized cutaneous wound healing dressing from natural polymers is very worth studying in medical natural polymer materials and multifunction gauze dressing design fields. In this work, superclear, porous cellulose membranes (CMs) with chitosan-coated nanofibers were fabricated using a simple, one-step electrostatic spinn ...
DOI:
10.1021/acsami.0c05604

14. New Biocatalyst Including a 4-Nitrobenzoic Acid Mediator Embedded by the Cross-Linking of Chitosan and Genipin and Its Use in an Energy Device

Author:
Hyun, Kyuhwan; Kang, Suhyeon; Kim, Jiyong; Kwon, Yongchai
Source:
ACS applied materials & interfaces 2020 v.12 no.20 pp. 23635-23643
ISSN:
1944-8252
Subject:
biocatalysts; carbon nanotubes; catalytic activity; chitosan; crosslinking; electric potential difference; electrochemistry; electrodes; glucose; glucose oxidase; leaching; microbial fuel cells; nitrobenzoic acids; oxidation; pH; silver; silver chloride; ultraviolet-visible spectroscopy
Abstract:
... A new anodic catalyst consisting of carbon nanotube, 4-nitrobenzoic acid, chitosan, genipin, and glucose oxidase (GOx) (CNT/4-NBA/[Chit/GOx/GP]) is suggested to promote the glucose oxidation reaction (GOR) and the performance of enzymatic biofuel cell (EBC). In this catalyst, through the cross-linked structure of chitosan and genipin and the proper distribution of amine groups within chitosan, man ...
DOI:
10.1021/acsami.0c05564

15. Strong, Machinable, and Insulating Chitosan–Urea Aerogels: Toward Ambient Pressure Drying of Biopolymer Aerogel Monoliths

Author:
Guerrero-Alburquerque, Natalia; Zhao, Shanyu; Adilien, Nour; Koebel, Matthias M.; Lattuada, Marco; Malfait, Wim J.
Source:
ACS applied materials & interfaces 2020 v.12 no.19 pp. 22037-22049
ISSN:
1944-8252
Subject:
Fourier transform infrared spectroscopy; aerogels; ambient pressure; biopolymers; brittleness; carbon dioxide; chitosan; commercialization; drilling; drugs; drying; ethanol; filtration; gelation; heptane; hydrogels; insulating materials; microstructure; nitrogen; nuclear magnetic resonance spectroscopy; pH; porous media; raw materials; sawing; scanning electron microscopy; silica; sorption; surface area; temperature; thermal degradation; urea
Abstract:
... Biopolymer aerogels are an emerging class of materials with potential applications in drug delivery, thermal insulation, separation, and filtration. Chitosan is of particular interest as a sustainable, biocompatible, and abundant raw material. Here, we present urea-modified chitosan aerogels with a high surface area and excellent thermal and mechanical properties. The irreversible gelation of an a ...
DOI:
10.1021/acsami.0c03047

16. Antibacterial and Hemostatic Thiol-Modified Chitosan-Immobilized AgNPs Composite Sponges

Author:
Wu, Zhengguo; Zhou, Wei; Deng, Weijie; Xu, Changliang; Cai, Yun; Wang, Xiaoying
Source:
ACS applied materials & interfaces 2020 v.12 no.18 pp. 20307-20320
ISSN:
1944-8252
Subject:
Escherichia coli; Pseudomonas aeruginosa; Staphylococcus aureus; absorption; antibacterial properties; antibiotics; blood cells; chitosan; hemorrhage; hemostasis; in vivo studies; nanosilver; patients; porosity; synergism; tissue repair; toxicity
Abstract:
... Wound bleeding and infection are two of the major threats to patients’ lives, but developing safe materials with high hemostasis efficiency and antibacterial activity remains a major challenge. Silver nanoparticles (AgNPs) are suitable as antibacterial agents in the hemostatic process, but the application is hampered because of easy accumulation of toxicity. Herein, thiol-modified chitosan (TMC) w ...
DOI:
10.1021/acsami.0c05430

17. Chameleon Luminophore for Erasable Encrypted and Decrypted Devices: From Dual-Channel, Programmable, Smart Sensory Lanthanide Hydrogel to Logic Devices

Author:
Jia, Lei; Zhang, Beibei; Xu, Jun; Zhu, Tinghui; Chen, Rujie; Zhou, Feng
Source:
ACS applied materials & interfaces 2020 v.12 no.17 pp. 19955-19964
ISSN:
1944-8252
Subject:
chitosan; color; computer hardware; controllers; hydrochloric acid; hydrogels; lanthanides; laponite; luminescence; ofloxacin; pH; triethylamine; ultraviolet radiation
Abstract:
... With the rapid development of the data security technology, increasing attention has been paid to programmable memory materials with desirable security. However, most conventional memory devices only have a single switchable color state. In this research, a kind of pH-responsive Chameleon luminescent sensor (Lap@Eu-OFX, Lap = laponite, OFX = ofloxacin) based on lanthanide doping has been fabricate ...
DOI:
10.1021/acsami.0c03219

18. Mica-Based Multilayer Nanocoating as a Highly Effective Flame Retardant and Smoke Suppressant

Author:
Fahami, Abbas; Lee, Jungyu; Lazar, Simone; Grunlan, Jaime C.
Source:
ACS applied materials & interfaces 2020 v.12 no.17 pp. 19938-19943
ISSN:
1944-8252
Subject:
calorimetry; chitosan; combustion; flame retardants; foams; furniture; heat transfer; melting; mica; nanocomposites; polyacrylic acid; polyurethanes; risk factors; smoke
Abstract:
... Highly flammable polyurethane foam (PUF) remains a key risk factor associated with bedding and upholstered furniture, contributing to the yearly destruction of property and loss of lives. In an attempt to tackle this issue and develop a more benign flame retardant for PUF, a mica-based nanocomposite was deposited using layer-by-layer assembly. Chitosan (CH) and poly(acrylic acid) (PAA) were used t ...
DOI:
10.1021/acsami.0c02397

19. Selective Killing of Shiga Toxin-Producing Escherichia coli with Antibody-Conjugated Chitosan Nanoparticles in the Gastrointestinal Tract

Author:
Ma, Zhengxin; Kang, Minyoung; Meng, Shanyu; Tong, Zhaohui; Yoon, Soon-Do; Jang, Yeongseon; Jeong, K. Casey
Source:
ACS applied materials & interfaces 2020 v.12 no.16 pp. 18332-18341
ISSN:
1944-8252
Subject:
Caenorhabditis elegans; Escherichia coli O157; Lactobacillus plantarum; Salmonella enterica; adverse effects; animal models; anti-infective agents; antibodies; antigens; antimicrobial properties; bacteria; beneficial microorganisms; chitosan; egg yolk; food pathogens; gastrointestinal system; hemolytic uremic syndrome; hens; human health; immunization; immunoglobulin Y; intestinal secretions; nanoparticles; serotypes
Abstract:
... Shiga toxin-producing Escherichia coli (STEC) are critical foodborne pathogens, which cause serious human health issues, including hemolytic uremic syndrome. Illnesses caused by STEC lack effective treatments that target the elimination of these bacteria from the gastrointestinal tract without causing an adverse effect. Reducing this pathogen from a reservoir of STEC is an effective strategy, but ...
DOI:
10.1021/acsami.0c02177

20. B/N-Codoped Carbon Nanosheets Derived from the Self-Assembly of Chitosan–Amino Acid Gels for Greatly Improved Supercapacitor Performances

Author:
Yang, Liu; Wu, Dongling; Wang, Tao; Jia, Dianzeng
Source:
ACS applied materials & interfaces 2020 v.12 no.16 pp. 18692-18704
ISSN:
1944-8252
Subject:
amino acids; boric acid; boron; capacitance; carbon; chitosan; crosslinking; electrochemical capacitors; electrochemistry; electrolytes; energy density; gels; nanosheets; nitrogen; potassium hydroxide
Abstract:
... This work presents an efficient strategy for preparing chitosan (CS)-derived boron (B), nitrogen (N)-codoped porous carbon (C) nanosheets by using three amino acids with different acidities and the help of boric acid. Amino acids act not only as a N sources but also as the structure-directing agents through the interaction with CS to induce the formation of special morphology and structure. Boric ...
DOI:
10.1021/acsami.0c01655