51
|
Zhang S, Zhou S, Liu H, Xing M, Ding B, Li B. Pinecone-Inspired Nanoarchitectured Smart Microcages Enable Nano/Microparticle Drug Delivery. ADVANCED FUNCTIONAL MATERIALS 2020; 30:2002434. [PMID: 32684911 PMCID: PMC7357249 DOI: 10.1002/adfm.202002434] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/16/2020] [Revised: 04/07/2020] [Accepted: 04/08/2020] [Indexed: 05/22/2023]
Abstract
Drug delivery plays a vital role in medicine and health, but the on-demand delivery of large-sized drugs using stimuli-triggered carriers is extremely challenging. Most present capsules consist of polymeric dense shells with nanosized pores (<10 nm), thus typically lack permeability for nano/microparticle drugs. Here, a pinecone-inspired smart microcage with open network shells, assembled from cellulose nanofibrils (CNFs), is reported for nano/microparticle drug delivery. The approach allows the nanoarchitectured, functionalized CNFs to assemble into mechanically robust, haystack-like network shells with tunable large-through pores and polypeptide-anchored points on a large scale. Such open network shells can intelligently open/close triggered by lesion stimuli, making the therapy "always on-demand." The resulting pinecone-inspired microcages exhibit integrated properties of superior structural stability, superhydrophilicity, and pH-triggered, smart across-shell transport of emerging antimicrobial silver nanoparticles and bioactive silicate nanoplatelets (sizes of >100 nm), which enable both extraordinary anti-infection and bone regeneration. This work provides new insights into the design and development of multifunctional encapsulation and delivery carriers for medical and environmental applications.
Collapse
Affiliation(s)
- Shichao Zhang
- Department of OrthopedicsSchool of MedicineWest Virginia UniversityMorgantownWV26506USA
| | - Sheng Zhou
- Department of OrthopedicsSchool of MedicineWest Virginia UniversityMorgantownWV26506USA
| | - Hui Liu
- Innovation Center for Textile Science and TechnologyDonghua UniversityShanghai200051China
| | - Malcolm Xing
- Department of Mechanical EngineeringUniversity of ManitobaWinnipegMBR3T 2N2Canada
- The Children's Hospital Research Institute of ManitobaWinnipegMBR3E 3P4Canada
| | - Bin Ding
- Innovation Center for Textile Science and TechnologyDonghua UniversityShanghai200051China
| | - Bingyun Li
- Department of OrthopedicsSchool of MedicineWest Virginia UniversityMorgantownWV26506USA
| |
Collapse
|
52
|
Super hygroscopic nanofibrous membrane-based moisture pump for solar-driven indoor dehumidification. Nat Commun 2020; 11:3302. [PMID: 32620818 PMCID: PMC7335200 DOI: 10.1038/s41467-020-17118-3] [Citation(s) in RCA: 69] [Impact Index Per Article: 17.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2020] [Accepted: 06/12/2020] [Indexed: 11/08/2022] Open
Abstract
Desiccants play vital roles in dehumidification and atmospheric water harvesting; however, current desiccants have mediocre hygroscopicity, limited recyclability, and high energy consumption. Herein, we report a wood-inspired moisture pump based on electrospun nanofibrous membrane for solar-driven continuous indoor dehumidification. The developed moisture pump with multilayer wood-like cellular networks and interconnected open channels is composed of a desiccant layer and a photothermal layer. The desiccant layer exhibits an unprecedented moisture absorption capacity of 3.01 g g-1 at 90% relative humidity (RH), fast moisture absorption and transport rates, enabling atmospheric water harvesting. The photothermal layer shows a high solar absorption of 93%, efficient solar thermal conversion, and good moisture permeability, thus promoting water evaporation. The moisture pump efficiently reduces the indoor relative humidity to a comfort level (40‒60% RH) under one-sun illumination. This work opens the way to develop new-generation, high-performance nanofibrous membrane-based desiccants for energy-efficient humidity control and atmospheric water harvesting.
Collapse
|
53
|
Zhang S, Liu H, Tang N, Zhou S, Yu J, Ding B. Spider-Web-Inspired PM 0.3 Filters Based on Self-Sustained Electrostatic Nanostructured Networks. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2020; 32:e2002361. [PMID: 32510646 PMCID: PMC7300536 DOI: 10.1002/adma.202002361] [Citation(s) in RCA: 62] [Impact Index Per Article: 15.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/06/2020] [Revised: 05/04/2020] [Indexed: 05/19/2023]
Abstract
Particulate matter (PM) pollution has become a serious public health issue, especially with outbreaks of emerging infectious diseases. However, most present filters are bulky, opaque, and show low-efficiency PM0.3 /pathogen interception and inevitable trade-off between PM removal and air permeability. Here, a unique electrospraying-netting technique is used to create spider-web-inspired network generator (SWING) air filters. Manipulation of the dynamic of the Taylor cone and phase separation of its ejected droplets enable the generation of 2D self-charging nanostructured networks on a large scale. The resultant SWING filters show exceptional long-range electrostatic property driven by aeolian vibration, enabling self-sustained PM adhesion. Combined with their Steiner-tree-structured pores (size 200-300 nm) consisting of nanowires (diameter 12 nm), the SWING filters exhibit high efficiency (>99.995% PM0.3 removal), low air resistance (<0.09% atmosphere pressure), high transparency (>82%), and remarkable bioprotective activity for biohazard pathogens. This work may shed light on designing new fibrous materials for environmental and energy applications.
Collapse
Affiliation(s)
- Shichao Zhang
- State Key Laboratory for Modification of Chemical Fibers and Polymer MaterialsCollege of TextilesDonghua UniversityShanghai201620China
- Innovation Center for Textile Science and TechnologyDonghua UniversityShanghai200051China
- Department of OrthopedicsSchool of MedicineWest Virginia UniversityMorgantownWV26506USA
| | - Hui Liu
- State Key Laboratory for Modification of Chemical Fibers and Polymer MaterialsCollege of TextilesDonghua UniversityShanghai201620China
- Innovation Center for Textile Science and TechnologyDonghua UniversityShanghai200051China
| | - Ning Tang
- State Key Laboratory for Modification of Chemical Fibers and Polymer MaterialsCollege of TextilesDonghua UniversityShanghai201620China
| | - Sheng Zhou
- Department of OrthopedicsSchool of MedicineWest Virginia UniversityMorgantownWV26506USA
| | - Jianyong Yu
- State Key Laboratory for Modification of Chemical Fibers and Polymer MaterialsCollege of TextilesDonghua UniversityShanghai201620China
- Innovation Center for Textile Science and TechnologyDonghua UniversityShanghai200051China
| | - Bin Ding
- State Key Laboratory for Modification of Chemical Fibers and Polymer MaterialsCollege of TextilesDonghua UniversityShanghai201620China
- Innovation Center for Textile Science and TechnologyDonghua UniversityShanghai200051China
| |
Collapse
|
54
|
Zhao J, Zhu W, Wang X, Liu L, Yu J, Ding B. Fluorine-Free Waterborne Coating for Environmentally Friendly, Robustly Water-Resistant, and Highly Breathable Fibrous Textiles. ACS NANO 2020; 14:1045-1054. [PMID: 31877025 DOI: 10.1021/acsnano.9b08595] [Citation(s) in RCA: 57] [Impact Index Per Article: 14.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/05/2023]
Abstract
Waterproof and breathable membranes (WBMs) with simultaneous environmental friendliness and high performance are highly desirable in a broad range of applications; however, creating such materials still remains a tough challenge. Herein, we present a facile and scalable strategy to fabricate fluorine-free, efficient, and biodegradable WBMs via step-by-step dip-coating and heat curing technology. The hyperbranched polymer (ECO) coating containing long hydrocarbon chains provided an electrospun cellulose acetate (CA) fibrous matrix with high hydrophobicity; meanwhile, the blocked isocyanate cross-linker (BIC) coating ensured the strong attachment of hydrocarbon segments on CA surfaces. The resulting membranes (TCA) exhibited integrated properties with waterproofness of 102.9 kPa, breathability of 12.3 kg m-2 d-1, and tensile strength of 16.0 MPa, which are much superior to that of previously reported fluorine-free fibrous materials. Furthermore, TCA membranes can sustain hydrophobicity after exposure to various harsh environments. More importantly, the present strategy proved to be universally applicable and effective to several other hydrophilic fibrous substrates. This work not only highlights the material design and preparation but also provides environmentally friendly and high-performance WBMs with great potential application prospects for a variety of fields.
Collapse
Affiliation(s)
- Jing Zhao
- Key Laboratory of Textile Science & Technology, Ministry of Education, College of Textiles , Donghua University , Shanghai 201620 , China
| | - Weixia Zhu
- Key Laboratory of Textile Science & Technology, Ministry of Education, College of Textiles , Donghua University , Shanghai 201620 , China
| | - Xianfeng Wang
- Key Laboratory of Textile Science & Technology, Ministry of Education, College of Textiles , Donghua University , Shanghai 201620 , China
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Textiles , Donghua University , Shanghai 201620 , China
- Innovation Center for Textile Science and Technology , Donghua University , Shanghai 200051 , China
| | - Lifang Liu
- Key Laboratory of Textile Science & Technology, Ministry of Education, College of Textiles , Donghua University , Shanghai 201620 , China
| | - Jianyong Yu
- Innovation Center for Textile Science and Technology , Donghua University , Shanghai 200051 , China
| | - Bin Ding
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Textiles , Donghua University , Shanghai 201620 , China
- Innovation Center for Textile Science and Technology , Donghua University , Shanghai 200051 , China
| |
Collapse
|
55
|
Zhang S, Liu H, Tang N, Ali N, Yu J, Ding B. Highly Efficient, Transparent, and Multifunctional Air Filters Using Self-Assembled 2D Nanoarchitectured Fibrous Networks. ACS NANO 2019; 13:13501-13512. [PMID: 31664816 DOI: 10.1021/acsnano.9b07293] [Citation(s) in RCA: 62] [Impact Index Per Article: 12.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/25/2023]
Abstract
Particulate matter (PM) pollution is a significant burden on global economies and public health. Most present air filters are heavy, bulky, and nontransparent and typically have inevitable compromise between removal efficiency and air permeability. We report a scalable strategy to create ultralight, thin, rubbery, self-assembled nanoarchitectured networks (nanonetworks) with high-efficiency and transparency (ULTRA NET) as air filters using capacitive-like electronetting technology. By controlling the ejection, deformation, and phase separation of charged droplets from a Taylor cone, our approach allows continuously welded two-dimensional nanonetworks (∼20 nm fiber diameter) to assemble into filters on a large scale. The resulting ULTRA NET filters exhibit integrated properties of desirable pore structure yet maintaining strikingly low thickness (∼350 nm) and free-standing capability, 99.98% removal efficiency, and <0.07% of atmosphere pressure for PM0.3 filtration at ∼85.6% transmittance, which enable them to serve as a multifunctional filter against PMs either in rigid solid or in soft oil forms and even biohazard pathogens. This work should serve as a source of inspiration for the design and development of high-performance fibrous materials for various filtration and separation applications.
Collapse
Affiliation(s)
- Shichao Zhang
- Innovation Center for Textile Science and Technology , Donghua University , Shanghai 200051 , China
| | - Hui Liu
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Textiles , Donghua University , Shanghai 201620 , China
| | - Ning Tang
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Textiles , Donghua University , Shanghai 201620 , China
| | - Nadir Ali
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Textiles , Donghua University , Shanghai 201620 , China
| | - Jianyong Yu
- Innovation Center for Textile Science and Technology , Donghua University , Shanghai 200051 , China
| | - Bin Ding
- Innovation Center for Textile Science and Technology , Donghua University , Shanghai 200051 , China
| |
Collapse
|
56
|
Zhao R, He H, Cai M, Miao D, Yuan D, Ming J, Wang N, Ning X. Nano-Crystalline Sandwich Formed in Polylactic Acid Fibers. Macromol Rapid Commun 2019; 40:e1900492. [PMID: 31693258 DOI: 10.1002/marc.201900492] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2019] [Revised: 10/05/2019] [Indexed: 12/24/2022]
Abstract
Fibers have traditionally been made through melt or solution processes from macromolecules. Most of these fibers have crystalline domains where the segregation of different crystalline features is extremely difficult due to the statistical nature of the formation and growth of these domains. A fibrous nano-crystalline sandwich is reported where distinctly different crystalline regions are formed in layers along the continuous fiber direction during the spinning process and locked in place. This approach employs side-by-side bicomponent nanofiber electrospinning where the components are the enantiomeric pair of poly(l-lactic acid) and poly(d-lactic acid). The formation of the poly(lactic acid) (PLA) stereo-complexes at the junction interphase of the two components is demonstrated through diffusion, which subsequently crystallize into continuous sandwich domains. The stereo-complex crystalline core in the fiber possesses a melting point 50 °C higher than, and properties substantially different from, the regular PLAs at the fringe areas of the fiber. This nano-crystalline sandwich fiber structure can be scaled to the micrometers in a commercial bicomponent process.
Collapse
Affiliation(s)
- Renhai Zhao
- Industrial Research Institute of Nonwovens & Technical Textiles, College of Textiles & Clothing, Qingdao University, Qingdao, 266071, China
| | - Hongwei He
- Industrial Research Institute of Nonwovens & Technical Textiles, College of Textiles & Clothing, Qingdao University, Qingdao, 266071, China
| | - Ming Cai
- Industrial Research Institute of Nonwovens & Technical Textiles, College of Textiles & Clothing, Qingdao University, Qingdao, 266071, China
| | - Dagang Miao
- Industrial Research Institute of Nonwovens & Technical Textiles, College of Textiles & Clothing, Qingdao University, Qingdao, 266071, China
| | - Ding Yuan
- Industrial Research Institute of Nonwovens & Technical Textiles, College of Textiles & Clothing, Qingdao University, Qingdao, 266071, China
| | - Jingfa Ming
- Industrial Research Institute of Nonwovens & Technical Textiles, College of Textiles & Clothing, Qingdao University, Qingdao, 266071, China
| | - Na Wang
- Industrial Research Institute of Nonwovens & Technical Textiles, College of Textiles & Clothing, Qingdao University, Qingdao, 266071, China
| | - Xin Ning
- Industrial Research Institute of Nonwovens & Technical Textiles, College of Textiles & Clothing, Qingdao University, Qingdao, 266071, China
| |
Collapse
|