Xingzhou Yao , Wanying Zhao , Haiqiao Zhang , Yanbing Zhang , Linjun Zhong , Yan Wu
{"title":"Performance study of a superhydrophobic nanocellulose membrane on the surface of a wood-based panel prepared via the sol-gel method","authors":"Xingzhou Yao , Wanying Zhao , Haiqiao Zhang , Yanbing Zhang , Linjun Zhong , Yan Wu","doi":"10.1016/j.colcom.2023.100758","DOIUrl":"https://doi.org/10.1016/j.colcom.2023.100758","url":null,"abstract":"<div><p>The scarcity of wood resources in China has led to the development of wood-based panels. However, wood-based panels often exhibit hydrophilicity and require veneering. This paper presents a solution to this problem in which a composite membrane is prepared using nanocellulose (CNF) and polyvinyl alcohol (PVA) through the hot pressing method. The surface of the composite membrane is then coated with silica nanoparticles using the sol-gel method to achieve a superhydrophobic effect. The coating has a surface hardness of 5H, adhesion of 0, gloss of 20% Gu, colour difference of 3.11, and impact resistance of 19 kg.cm. The resulting modified wood-based panel has a contact angle of 166.8° and a sliding angle of 5.3°, indicating excellent self-cleaning properties and chemical stability. This innovation promotes the use of wood-based panels in high-humidity environments and offers new research avenues for the high-value utilization of nanocellulose.</p></div>","PeriodicalId":10483,"journal":{"name":"Colloid and Interface Science Communications","volume":"57 ","pages":"Article 100758"},"PeriodicalIF":4.5,"publicationDate":"2023-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2215038223000651/pdfft?md5=bb5a3733d1c62719560330f4dc3183a6&pid=1-s2.0-S2215038223000651-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136697142","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Xiawang Jiang , Shujuan Liu , Qianqian Yang , Delin Sun , Kangli Yang , Zhiqing Yuan , Minggong Yu , Shoutong Meng , Cancheng Li , Xinyi Li , Juan Du
{"title":"Facile fabrication of highly flame-retardant superhydrophobic coatings on kraft paper via a simple and efficient method","authors":"Xiawang Jiang , Shujuan Liu , Qianqian Yang , Delin Sun , Kangli Yang , Zhiqing Yuan , Minggong Yu , Shoutong Meng , Cancheng Li , Xinyi Li , Juan Du","doi":"10.1016/j.colcom.2023.100755","DOIUrl":"https://doi.org/10.1016/j.colcom.2023.100755","url":null,"abstract":"<div><p>To solve the problem of poor water resistance and flammability of kraft paper, we proposed a simple and efficient method for preparing highly flame-retardant superhydrophobic coating for kraft paper. Ammonium polyphosphate (APP) and aluminum hydroxide (ATH) were utilized as the flame retardant layer, while Polydimethylsiloxane (PDMS) and candle soot were employed for the superhydrophobic layer. The results revealed that the limiting oxygen index (LOI) of superhydrophobic flame retardant kraft paper (SFKP) was as high as 80%, 296.0% higher than that of ordinary kraft paper (OKP). In addition, the water contact angle (WCA) of the SFKP surface reaches 154.1°, and the water sliding angle (WSA) is 3°. Meanwhile, the WCA of SFKP remains above 150° after 12 h of immersion in water. This indicates that SFKP has excellent flame retardancy and water resistance, and is expected to be utilized in harsh environments such as floods or fires.</p></div>","PeriodicalId":10483,"journal":{"name":"Colloid and Interface Science Communications","volume":"57 ","pages":"Article 100755"},"PeriodicalIF":4.5,"publicationDate":"2023-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2215038223000626/pdfft?md5=24fd384cfa4b2a6ec3dfdc8dd32b1554&pid=1-s2.0-S2215038223000626-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134656154","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Shuai Cao , Shuai Cheng , Pengyu Wang , Shengbo Ge , Liping Cai , Jiabin Cai
{"title":"Construction and characterization of superhydrophobic wood coatings using one-step technique","authors":"Shuai Cao , Shuai Cheng , Pengyu Wang , Shengbo Ge , Liping Cai , Jiabin Cai","doi":"10.1016/j.colcom.2023.100757","DOIUrl":"https://doi.org/10.1016/j.colcom.2023.100757","url":null,"abstract":"<div><p>This study was aiming at enhancing the stain resistance and durability of varnish on wood surfaces, a super hydrophobic solution was created by blending the synthetic ZIF-8/paraffin with Hexadecyltrimethoxysilane (HDTMS) at a specified mass ratio. This superhydrophobic mixture was then directly applied onto the wood varnish coating using a one-step method. The microscopic characterization, transmittance, wear resistance, and water contact angle (WCA) tests of hydrophobic coatings indicated that the mass ratio of ZIF-8 to HDTMS affected the surface microstructure and roughness of wood coatings. When the ratio reached 10:1, 5:1, and 2:1, the nanoparticles were dispersed at the interface of the varnish, and the film forming effect was uniform. The transmittance of the varnish coating was about 90%, and the transmittance of the superhydrophobic coating was about 80%. The water absorption rate of the treated sample was much lower than that of the untreated sample. After 10 cycles of abrasion tests, while the WCA decreased, it remained above 150°. Water droplets on the coating surface can remove pollutants through “rolling washing”, demonstrating good self-cleaning performance. The one-step method enables the rapid creation of superhydrophobic films on the surface of wood varnish coating.</p></div>","PeriodicalId":10483,"journal":{"name":"Colloid and Interface Science Communications","volume":"57 ","pages":"Article 100757"},"PeriodicalIF":4.5,"publicationDate":"2023-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S221503822300064X/pdfft?md5=071fe3c88ad5b75ff2ac26b0bdd11bf4&pid=1-s2.0-S221503822300064X-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138396166","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Leire Goñi-Ciaurriz , Pablo Rosas-Val , Carlos Gamazo , Itziar Vélaz
{"title":"Photocatalytic and antibacterial performance of β-cyclodextrin-TiO2 nanoparticles loading sorbic and benzoic acids","authors":"Leire Goñi-Ciaurriz , Pablo Rosas-Val , Carlos Gamazo , Itziar Vélaz","doi":"10.1016/j.colcom.2023.100747","DOIUrl":"https://doi.org/10.1016/j.colcom.2023.100747","url":null,"abstract":"<div><p>TiO<sub>2</sub> nanoparticles (NPs) have been modified with β-cyclodextrin (βCD)-food preservative complexes. The susceptibility of <em>Escherichia coli</em> and <em>Staphylococcus aureus</em> to TiO<sub>2</sub> NPs, sorbic acid (SA), benzoic acid (BA), and β-Cyclodextrin-TiO<sub>2</sub> NPs including SA or BA, was studied. At 0.5 mg mL<sup>−1</sup>, TiO<sub>2</sub> NPs were more effective in the inhibition of bacterial growth than modified-TiO<sub>2</sub> NPs, achieving 71% inhibition rate. At the higher concentration of 3 mg mL<sup>−1</sup> there were no significant differences between treatments, being all of them highly effective reaching 90% inhibition. Higher treatment-doses were related to slower growth rates. Flow cytometry findings suggested efficient NPs interaction with bacteria, being more noticeable in the case of TiO<sub>2</sub> NPs. Regarding the photocatalytic activity, under 0.600 mW cm<sup>−2</sup> irradiation, TiO<sub>2</sub> NPs reached 95% methylene-blue dye degradation after 150 min, while βCD-TiO<sub>2</sub> NPs showed 3-times lower kinetic constant. Overall results suggest potential application of the new systems in active packages to protect food from microbial spoilage.</p></div>","PeriodicalId":10483,"journal":{"name":"Colloid and Interface Science Communications","volume":"57 ","pages":"Article 100747"},"PeriodicalIF":4.5,"publicationDate":"2023-10-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49719753","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"The study of the anti-icing performance of superhydrophobic silica-nanostructured metal substrates","authors":"Tanyakorn Muangnapoh , Nipitpon Janampansang , Salida Chuphong , Chanathip Chevachotivut , Bhawat Traipattanakul , Pisist Kumnorkaew , Tippawan Sodsai","doi":"10.1016/j.colcom.2023.100745","DOIUrl":"https://doi.org/10.1016/j.colcom.2023.100745","url":null,"abstract":"<div><p>Superhydrophobic surfaces have proven effective in mitigating ice formation on substrates. This study aimed to experimentally investigate the effects of the surface structure of selected metal substrates on the anti-icing performance. Superhydrophobic surfaces were fabricated on aluminum, copper, stainless steel, and titanium substrates using a spray coating technique with superhydrophobic tridecafluorooctyl triethoxy silane (FAS)-functionalized colloidal silica nanoparticles. The surface wettability, surface morphology, and chemical analysis of the coated surfaces were reported. The results demonstrated successful deposition of silica nanoparticles on all substrates, significantly improving the anti-icing property of the coated surfaces. When compared with uncoated surfaces, the droplet icing times of the coated aluminum plate (C-Al), of the coated copper plate (C-Cu), of the coated stainless steel plate (C-SS), and of the coated titanium plate (C-Ti) significantly enhanced by 751%, 795%, 830% and 1320%, respectively. Also, a heat transfer model was also developed to explain the anti-icing phenomenon.</p></div>","PeriodicalId":10483,"journal":{"name":"Colloid and Interface Science Communications","volume":"57 ","pages":"Article 100745"},"PeriodicalIF":4.5,"publicationDate":"2023-10-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49709263","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Yujiao Hao , Shun Liu , Hongtan Cai , Qiaoyi Zhang , Ge Gao , Xiufeng Hao
{"title":"A silicone with one quaternary ammonium salt and three N-halamine sites in the repeating unit for improved antibiotic ability on submicrospheres","authors":"Yujiao Hao , Shun Liu , Hongtan Cai , Qiaoyi Zhang , Ge Gao , Xiufeng Hao","doi":"10.1016/j.colcom.2023.100731","DOIUrl":"https://doi.org/10.1016/j.colcom.2023.100731","url":null,"abstract":"<div><p>A silicone containing one cationic quaternary ammonium salt (QAS) and three <em>N</em>-halamine sites in the repeating unit was developed on SiO<sub>2</sub> submicron spheres for better antibacterial performance, larger bactericidal area and easier recyclability. Briefly, a precursor (NDAM) with high content of <em>N</em>-halamine was prepared by the amidation reaction. Then, a SiO<sub>2</sub>@NDA nanocomposite was synthesized. Chlorination of the three imide N<img>H bonds in the repeat unit finalized the synthesis of the bactericidal silicone (SiO<sub>2</sub>@NDA-Cl). The synthetic steps and products were characterized and the effect of the contents of NDAM in copolymer on antibacterial activity were systematically assayed. The SiO<sub>2</sub>@NDA-Cl showed higher deactivation abilities against both <em>E. coli</em> and <em>S. aureus</em> compared with their counterparts that contained only one cationic center or one <em>N</em>-halamine. This study has theoretical and practical application value for the development of new antibacterial materials.</p></div>","PeriodicalId":10483,"journal":{"name":"Colloid and Interface Science Communications","volume":"56 ","pages":"Article 100731"},"PeriodicalIF":4.5,"publicationDate":"2023-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49710179","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Application and prospect of self-healing microcapsules in surface coating of wood","authors":"Yijuan Chang , Xiaoxing Yan , Zhihui Wu","doi":"10.1016/j.colcom.2023.100736","DOIUrl":"https://doi.org/10.1016/j.colcom.2023.100736","url":null,"abstract":"<div><p>Currently, the demand for valuable solid wood furniture has significantly increased. However, repeated friction can cause scratches and microcracks on its surface coating, thereby reducing its service life. Inspired by biological self-healing, shell-core structures, where the wall material provides toughness to protect the core material. When the wall material experiences external force, it cracks and releases the core material to repair microcracks. This method can prolong the life cycle of the cured paint film, enhancing its aesthetic, anti-corrosion, and protective effects on wood. In this review, we discussed the repair mechanism of self-healing microcapsules, preparation methods, and the scope of applications of the microcapsules. And the main factors affecting the performance of microcapsules were summarized. In addition, we give an overview of the application of microcapsules in wood and give an outlook on their future functional applications.</p></div>","PeriodicalId":10483,"journal":{"name":"Colloid and Interface Science Communications","volume":"56 ","pages":"Article 100736"},"PeriodicalIF":4.5,"publicationDate":"2023-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49710133","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Qiang Wei , Laurence Blake , Jiafeng Liu , Kun Man , Cindy Liang , Alexandra Teoh , Hong-Bo Xin , Yong Yang
{"title":"Harnessing nanofiber alignment and pore size to promote stem cell self-renewal and differentiation","authors":"Qiang Wei , Laurence Blake , Jiafeng Liu , Kun Man , Cindy Liang , Alexandra Teoh , Hong-Bo Xin , Yong Yang","doi":"10.1016/j.colcom.2023.100734","DOIUrl":"https://doi.org/10.1016/j.colcom.2023.100734","url":null,"abstract":"<div><p>Stem cell therapy holds immense potential for regenerative medicine, but its applications are limited due to the loss of pluripotency during <em>in vitro</em> expansion. One promising approach to regulate stem cells is through nanotopographies, such as nanofibers. This study reveals that the arrangement of electrospun fibers aligns with the distribution and strength of the electric field through both experimentation and simulation. An electrospinning collector is thus designed to produce nanofibrous membranes with defined alignment and pore size. The cell study shows that randomly oriented nanofibers with small pores promote self-renewal and adipogenic and osteogenic differentiation of human mesenchymal stem cells. Conversely, aligned mesh membrane, particularly those with medium pores, decreases cell proliferation, stemness, and differentiation potential by elongating the cells. Furthermore, our study suggests that stem cell behavior is sensitive to the nanofiber structure, which offers a potential direction in promoting stem cell expansion efficacy.</p></div>","PeriodicalId":10483,"journal":{"name":"Colloid and Interface Science Communications","volume":"56 ","pages":"Article 100734"},"PeriodicalIF":4.5,"publicationDate":"2023-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49710177","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Junqiang Wang , Yinjie Wang , Ningning Su , Mengwei Li
{"title":"Improving consistency and performance of graphene-based devices via Al sacrificial layer","authors":"Junqiang Wang , Yinjie Wang , Ningning Su , Mengwei Li","doi":"10.1016/j.colcom.2023.100743","DOIUrl":"https://doi.org/10.1016/j.colcom.2023.100743","url":null,"abstract":"<div><p>Graphene has attracted much attention because of its excellent physical properties and great potential applications in electronic devices. However, traditional lithography process using photoresist masks will inevitably leave some organic matter on the graphene surface, which will reduce the performance and yield of graphene-based devices. In this paper, a new lithography process for the separation of graphene and photoresist using Al sacrificial layer is proposed. ToF-SIMS demonstrated that the process not only avoids photoresist residues, but also significantly reduces PMMA contamination without introducing Al atomic residues. The morphology also shows that the graphene pattern prepared by this process is flatter and cleaner. More importantly, electrical tests show that Al sacrificial layer process can significantly improve the consistency of the resistance (standard deviation reduced by 41.9%) and the sensitivity of the device (temperature sensor sensitivity increased by 54.41%). This work provides a way for the commercial application of graphene electronic devices.</p></div>","PeriodicalId":10483,"journal":{"name":"Colloid and Interface Science Communications","volume":"56 ","pages":"Article 100743"},"PeriodicalIF":4.5,"publicationDate":"2023-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49710309","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Fengjun Shi , SiSi Ma , Sen Liu , Rui Xin , Bo Chen , Wei Ye , Jing Sun
{"title":"A novel antimicrobial strategy for bacterial infections: Gallium-based materials","authors":"Fengjun Shi , SiSi Ma , Sen Liu , Rui Xin , Bo Chen , Wei Ye , Jing Sun","doi":"10.1016/j.colcom.2023.100735","DOIUrl":"https://doi.org/10.1016/j.colcom.2023.100735","url":null,"abstract":"<div><p>Bacterial infections remain a significant challenge in clinical medicine, and pervasive bacterial contamination addressed is based on the rational use of biomedical antibacterial materials in the clinic. While antibiotics have been instrumental in mitigating the threat of bacterial infections, the overuse of antibiotics has led to the emergence of antibiotic-resistant bacteria, thus, there is an urgent need to explore alternative antimicrobial strategies. Gallium (Ga)-based materials hold tremendous potential due to their exceptional antimicrobial properties, which combine physical and chemical sterilization. Herein, we review the main antimicrobial mechanisms of Ga-based materials, including Fe metabolism inhibition, reactive oxygen species induced generation, and physical disruption. Additionally, we summarize the various functional applications of Ga-based antimicrobial materials. Finally, we present the future challenge and development of Ga-based antimicrobial materials.</p></div>","PeriodicalId":10483,"journal":{"name":"Colloid and Interface Science Communications","volume":"56 ","pages":"Article 100735"},"PeriodicalIF":4.5,"publicationDate":"2023-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49761318","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}