PMID- 38471076 OWN - NLM STAT- PubMed-not-MEDLINE LR - 20240328 IS - 1944-8252 (Electronic) IS - 1944-8244 (Linking) VI - 16 IP - 12 DP - 2024 Mar 27 TI - Formation and Application of Polymer Spherulite-like Patterns of Halloysite Nanotubes by Evaporation-Induced Self-Assembly. PG - 15177-15192 LID - 10.1021/acsami.3c18917 [doi] AB - Halloysite nanotubes (HNTs) are one-dimensional clay nanomaterials featuring distinct tubular structures and unique surface charges. HNTs can readily form ordered assembly structures under specific conditions, which shows significant potential applications in optical and biological fields. In this study, sodium hexametaphosphate (SHMP) was employed as a stabilizer to prepare polymer spherulite-like patterns via the evaporation-induced self-assembly (EISA) technique. The incorporation of SHMP enhanced the repulsion force among the nanotubes and the surface potential, which facilitated the orderly deposition of HNTs. The influence of HNT concentration, SHMP concentration, drying temperature, and substrate on the polymer spherulites-like pattern has been investigated in detail. The optimal conditions were 10 wt % HNT dispersion, 0.6 wt % SHMP concentration, 30 degrees C as drying temperature, and glass substrates. In addition, by changing the droplet volume and shape of the three-phase contact line, patterns of different sizes and shapes can be achieved. Bovine serum albumin or metal salt compounds were incorporated into the dispersion of SHMP-modified HNTs, which altered the charge and the self-assembled patterns with different area ratios. Thus, this technology can be utilized for the analysis and comparison of protein and metal ion concentration accurately. This study creates the correlation between the structural parameters and the preparation process involved in creating polymer spherulite-like patterns of modified HNTs and offers fresh insights into potential applications for the self-assembly of HNT droplets in the realms of anticounterfeiting and solution concentration analysis. FAU - Xu, Yuqian AU - Xu Y AD - Department of Materials Science and Engineering, College of Chemistry and Materials Science, Jinan University, Guangzhou 511443, PR of China. FAU - He, Yunqing AU - He Y AD - Department of Materials Science and Engineering, College of Chemistry and Materials Science, Jinan University, Guangzhou 511443, PR of China. FAU - Wu, Feng AU - Wu F AD - Department of Materials Science and Engineering, College of Chemistry and Materials Science, Jinan University, Guangzhou 511443, PR of China. FAU - Zhou, Xinyuan AU - Zhou X AD - Department of Materials Science and Engineering, College of Chemistry and Materials Science, Jinan University, Guangzhou 511443, PR of China. FAU - Liu, Mingxian AU - Liu M AUID- ORCID: 0000-0002-5466-3024 AD - Department of Materials Science and Engineering, College of Chemistry and Materials Science, Jinan University, Guangzhou 511443, PR of China. LA - eng PT - Journal Article DEP - 20240312 PL - United States TA - ACS Appl Mater Interfaces JT - ACS applied materials & interfaces JID - 101504991 SB - IM OTO - NOTNLM OT - anticounterfeiting OT - concentration analysis OT - evaporative self-assembly OT - halloysite OT - sodium hexametaphosphate EDAT- 2024/03/12 18:42 MHDA- 2024/03/12 18:43 CRDT- 2024/03/12 16:32 PHST- 2024/03/12 18:43 [medline] PHST- 2024/03/12 18:42 [pubmed] PHST- 2024/03/12 16:32 [entrez] AID - 10.1021/acsami.3c18917 [doi] PST - ppublish SO - ACS Appl Mater Interfaces. 2024 Mar 27;16(12):15177-15192. doi: 10.1021/acsami.3c18917. Epub 2024 Mar 12.