文献类型：期刊文献

英文题名：Versatile strategy for achieving uniform molecular deposition in evaporation drops

作者：Zhang, Min[1];Zhong, Jinxin[3,4];Hu, Kami[2];He, Hui[2];Sheng, Shiqi[1];Dai, Gaole[5];Huang, Xing[6];Zhou, Bo[7];Dong, Haolu[8];Hu, Dingzhong[9];Wang, Jun[3,4];Chen, Ruoyang[1]

机构：[1]East China Univ Sci & Technol, Sch Phys, Shanghai 200237, Peoples R China;[2]Zhejiang Sci Tech Univ, Fash Design Coll lstituto Marangoni, Sch Int Educ, Hangzhou 310018, Zhejiang, Peoples R China;[3]Shanghai Polytech Univ, Sch Energy & Mat, Shanghai 201209, Peoples R China;[4]Shanghai Engn Res Ctr Adv Thermal Funct Mat, Shanghai 201209, Peoples R China;[5]Nantong Univ, Sch Phys & Technol, Nantong 226019, Jiangsu, Peoples R China;[6]Hangzhou City Univ, Dept Mech Engn, Hangzhou 310015, Zhejiang, Peoples R China;[7]Ningbo Univ, Ningbo Med Ctr, Dept Gen Surg, Lihuili Affiliated Hosp,Lihuili Hosp, Ningbo 315040, Zhejiang, Peoples R China;[8]Wenzhou Univ, Sch Su Buqing Honors Coll, Wenzhou 325000, Zhejiang, Peoples R China;[9]Shanghai Chest Hosp, Shanghai 200030, Peoples R China

年份：2026

卷号：724

外文期刊名：JOURNAL OF COLLOID AND INTERFACE SCIENCE

收录：;EI(收录号：20263121221979);Scopus(收录号：2-s2.0-105046182513);WOS:【SCI-EXPANDED(收录号:WOS:001839794200001)】；

基金：Authors thank Prof Jiping Huang at Fudan University and Prof Liang Chen at Ningbo University for their constructive advices on this work. This work is sponsored by Shanghai Pujiang Program (No. 23PJ1401800) , Shanghai Rising-Star Program (NO. 24QA2703100) , Shanghai Sailing Program (No. 24YF2713800) , the Science Foundation of Zhejiang Sci-Tech University (ZSTU) (No. 22192136-Y) , Scientific Research Fund of Zhejiang Provincial Education Department (No. Y202354119) , the National Natural Science Foundation of China (12205101, 52303304 and 12005062) and the Project of Ningbo Leading Medical & Health Discipline (No. 2022-F01) .

语种：英文

外文关键词：Uniform molecular deposition; Percolation effect; Cellulose nanofibers; Antimicrobial spray; Bacterial enumeration

摘要：Uniform evaporative deposition of non-volatile materials is crucial for applications such as electronic tattoos, crop spraying, textile dyeing, surface coating, and inkjet printing. However, achieving molecular uniformity remains challenging: small materials preferentially accumulate at the contact line, forming ring-like depositions due to weak inter-material attraction, low material-substrate adhesion, reduced geometric constraints, and enhanced flow influence. This study presents a versatile strategy for achieving uniform molecular deposition using cellulose nanofibers (CNFs). Experiments and theoretical analysis demonstrate that CNF percolation can cause steric hindrance and viscosity modulation to suppress-outward capillary flow, synergizing with strong molecular adsorption onto CNF surfaces, to ensure the uniform molecular deposition. This strategy is applicable across diverse substrates, including glass, leaves, ceramics, skin, polyethylene terephthalate, epoxy resin, wood, and porous cotton. Biomedical applications are demonstrated through a photodynamic antibacterial spray effective on porous media and a point-of-care bacterial counting method. These findings provide new insights into the suppression of the coffee-ring effect at the molecular level and establish a platform for uniform mo-lecular deposition, with broad applications in biomedicine, electronics, agriculture, textiles, surface engineering, and materials science.