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Dong S, Zheng Q, Tang M, Zhu S, Nie J, Du B. Ionic Microgel Colloidal Crystals: Responsive Chromism in Dual Physical and Chemical Colors for High-End Information Security and Encryption. ACS APPLIED MATERIALS & INTERFACES 2023. [PMID: 37418692 DOI: 10.1021/acsami.3c03742] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 07/09/2023]
Abstract
Chromic materials play a decisive and escalating role in information security. However, it is challenging to develop chromic materials for encryption technologies that can hardly be imitated. Inspired by versatile metachrosis in nature, a series of coumarin-based 7-(6-bromohexyloxy)-coumarin microgel colloidal crystals (BrHC MGCC) with multiresponsive chromism are able to be assembled by ionic microgels in poly(vinyl alcohol) (PVA) solution followed by two cycles of freezing-thawing. The ionic microgels can be finely tailored by in situ quaternization with tunable size under varied temperatures and hydration energies of counterions as well as quenched luminescence under UV irradiation, which endows BrHC MGCC with intriguing chromism in the dual-channel coloration of physical structural color and chemical fluorescent color. Three types of BrHC MGCC exhibit various change ranges in structural coloration and similar quenching in fluorescence emission, which can be utilized for the development of the static-dynamic combined anticounterfeiting system with dual coloration. The information conveyed by the BrHC MGCC array presents dynamic variation versus temperature, while the static information can be only integrally read in both sunlight and a 365 nm UV lamp. The fabrication of a microgel colloidal crystal with dual coloration opens a facile and ecofriendly window for multilevel information security, camouflage, and a cumbersome authentication process.
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Affiliation(s)
- Shunni Dong
- National Key Laboratory of Biobased Transportation Fuel Technology, Department of Polymer Science & Engineering, Zhejiang University, Hangzhou 310027, China
| | - Qianqian Zheng
- National Key Laboratory of Biobased Transportation Fuel Technology, Department of Polymer Science & Engineering, Zhejiang University, Hangzhou 310027, China
| | - Meiqi Tang
- Department of Chemistry, Zhejiang University, Hangzhou 310027, China
| | - Shaoxiong Zhu
- National Key Laboratory of Biobased Transportation Fuel Technology, Department of Polymer Science & Engineering, Zhejiang University, Hangzhou 310027, China
| | - Jingjing Nie
- Department of Chemistry, Zhejiang University, Hangzhou 310027, China
| | - Binyang Du
- National Key Laboratory of Biobased Transportation Fuel Technology, Department of Polymer Science & Engineering, Zhejiang University, Hangzhou 310027, China
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2
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Dual Responsive Dependent Background Color Based on Thermochromic 1D Photonic Crystal Multilayer Films. Polymers (Basel) 2022; 14:polym14235330. [PMID: 36501724 PMCID: PMC9735666 DOI: 10.3390/polym14235330] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2022] [Revised: 12/02/2022] [Accepted: 12/03/2022] [Indexed: 12/12/2022] Open
Abstract
In this paper, we present dual responsive one-dimensional (1D) photonic crystal (PC) multilayer films that utilize a high-humidity environment and temperature. Dual responsive 1D PC multilayer films are fabricated on precoated thermochromic film by sequential alternate layer deposition of photo-crosslinkable poly(2-vinylnaphthalene-co-benzophenone acrylate) (P(2VN-co-BPA)) as a high refractive index polymer, and poly(4-vinylpyrollidone-co-benzophenone acrylate) P(4VP-co-BPA) as a low refractive index polymer. The thermochromic film shows a vivid color transition from black to white at 28 °C. Three different colors of thermochromic 1D PC multilayer films are prepared by thickness modulation of P(4VP-co-BPA) layers, and the films on a black background exhibit visible spectrum color only in a high-humidity environment (over 90% relative humidity (RH)). For the three films placed on a hands display, three different composite colors are synthesized by the reflection of light, including yellow, magenta, and cyan, due to the changing of backgrounds from black to white with temperature. Additionally, the films show remarkable color transitions with reliable reversibility. The films can be applied as anti-counterfeiting labels and can be used for smart decoration films. To the best of our knowledge, this is the first report of dual response colorimetric films that change color in various ways depending on temperature and humidity changes, and we believe that it can be applied to various applications.
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3
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Liu J, Zhang T, Liu X, Lam JWY, Tang BZ, Chau Y. Molecular logic operations from complex coacervation with aggregation-induced emission characteristics. MATERIALS HORIZONS 2022; 9:2443-2449. [PMID: 35856292 DOI: 10.1039/d2mh00537a] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Leveraging complex coacervation of a polycation and a bivalent anion with aggregation-induced emission characteristics, we accomplish eight basic logic operations with environmental stimuli as inputs, producing Boolean-like fluorescence intensity or turbidity 'outputs' with contrast higher than one order of magnitude. Storage of information of a fluorescent pattern and thermo-sensor applications are also demonstrated.
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Affiliation(s)
- Jianhui Liu
- Department of Chemical and Biological Engineering, the Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong SAR, China.
| | - Tianfu Zhang
- Department of Chemistry and Hong Kong Branch of Chinese National Engineering Research Center for Tissue Restoration and Reconstruction, the Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong SAR, China
| | - Xiaolin Liu
- Department of Chemistry and Hong Kong Branch of Chinese National Engineering Research Center for Tissue Restoration and Reconstruction, the Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong SAR, China
| | - Jacky W Y Lam
- Department of Chemistry and Hong Kong Branch of Chinese National Engineering Research Center for Tissue Restoration and Reconstruction, the Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong SAR, China
| | - Ben Zhong Tang
- Department of Chemistry and Hong Kong Branch of Chinese National Engineering Research Center for Tissue Restoration and Reconstruction, the Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong SAR, China
- School of Science and Engineering, Shenzhen Key Laboratory of Functional Aggregate Materials, the Chinese University of Hong Kong, Shenzhen, Guangdong 518172, China
| | - Ying Chau
- Department of Chemical and Biological Engineering, the Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong SAR, China.
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Ghindani D, Issah I, Chervinskii S, Lahikainen M, Kuntze K, Priimagi A, Caglayan H. Humidity-Controlled Tunable Emission in a Dye-Incorporated Metal-Hydrogel-Metal Cavity. ACS PHOTONICS 2022; 9:2287-2294. [PMID: 35880073 PMCID: PMC9305995 DOI: 10.1021/acsphotonics.2c00202] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
Actively controllable photoluminescence is potent for a wide variety of applications from biosensing and imaging to optoelectronic components. Traditionally, methods to achieve active emission control are limited due to complex fabrication processes or irreversible tuning. Here, we demonstrate active emission tuning, achieved by changing the ambient humidity in a fluorescent dye-containing hydrogel integrated into a metal-insulator-metal (MIM) system. Altering the overlapping region of the MIM cavity resonance and the absorption and emission spectra of the dye used is the underlying principle to achieving tunability of the emission. We first verify this by passive tuning of cavity resonance and further experimentally demonstrate active tuning in both air and aqueous environments. The proposed approach is reversible, easy to integrate, and spectrally scalable, thus providing opportunities for developing tunable photonic devices.
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Han F, Wang T, Liu G, Liu H, Xie X, Wei Z, Li J, Jiang C, He Y, Xu F. Materials with Tunable Optical Properties for Wearable Epidermal Sensing in Health Monitoring. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2022; 34:e2109055. [PMID: 35258117 DOI: 10.1002/adma.202109055] [Citation(s) in RCA: 39] [Impact Index Per Article: 19.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/09/2021] [Revised: 02/26/2022] [Indexed: 06/14/2023]
Abstract
Advances in wearable epidermal sensors have revolutionized the way that physiological signals are captured and measured for health monitoring. One major challenge is to convert physiological signals to easily readable signals in a convenient way. One possibility for wearable epidermal sensors is based on visible readouts. There are a range of materials whose optical properties can be tuned by parameters such as temperature, pH, light, and electric fields. Herein, this review covers and highlights a set of materials with tunable optical properties and their integration into wearable epidermal sensors for health monitoring. Specifically, the recent progress, fabrication, and applications of these materials for wearable epidermal sensors are summarized and discussed. Finally, the challenges and perspectives for the next generation wearable devices are proposed.
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Affiliation(s)
- Fei Han
- The Key Laboratory of Biomedical Information Engineering of Ministry of Education, School of Life Science and Technology, Xi'an Jiaotong University, Xi'an, 710049, P. R. China
- Bioinspired Engineering and Biomechanics Center (BEBC), Xi'an Jiaotong University, Xi'an, 710049, P. R. China
| | - Tiansong Wang
- The Key Laboratory of Biomedical Information Engineering of Ministry of Education, School of Life Science and Technology, Xi'an Jiaotong University, Xi'an, 710049, P. R. China
- Bioinspired Engineering and Biomechanics Center (BEBC), Xi'an Jiaotong University, Xi'an, 710049, P. R. China
| | - Guozhen Liu
- School of Life and Health Sciences, The Chinese University of Hong Kong, Shenzhen, 518172, P. R. China
| | - Hao Liu
- The Key Laboratory of Biomedical Information Engineering of Ministry of Education, School of Life Science and Technology, Xi'an Jiaotong University, Xi'an, 710049, P. R. China
- Bioinspired Engineering and Biomechanics Center (BEBC), Xi'an Jiaotong University, Xi'an, 710049, P. R. China
| | - Xueyong Xie
- The Key Laboratory of Biomedical Information Engineering of Ministry of Education, School of Life Science and Technology, Xi'an Jiaotong University, Xi'an, 710049, P. R. China
- Bioinspired Engineering and Biomechanics Center (BEBC), Xi'an Jiaotong University, Xi'an, 710049, P. R. China
| | - Zhao Wei
- The Key Laboratory of Biomedical Information Engineering of Ministry of Education, School of Life Science and Technology, Xi'an Jiaotong University, Xi'an, 710049, P. R. China
- Bioinspired Engineering and Biomechanics Center (BEBC), Xi'an Jiaotong University, Xi'an, 710049, P. R. China
| | - Jing Li
- Department of Burns and Plastic Surgery, Second Affiliated Hospital of Air Force Military Medical University, Xi'an, 710038, P. R. China
| | - Cheng Jiang
- School of Life and Health Sciences, The Chinese University of Hong Kong, Shenzhen, 518172, P. R. China
- Department of Chemistry, University of Oxford, Oxford, OX1 3QZ, UK
| | - Yuan He
- The Second Affiliated Hospital, Xi'an Medical University, Xi'an, 710038, P. R. China
| | - Feng Xu
- The Key Laboratory of Biomedical Information Engineering of Ministry of Education, School of Life Science and Technology, Xi'an Jiaotong University, Xi'an, 710049, P. R. China
- Bioinspired Engineering and Biomechanics Center (BEBC), Xi'an Jiaotong University, Xi'an, 710049, P. R. China
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Arai Y, Yashiro N, Imura Y, Wang KH, Kawai T. Thermally Tunable Structural Coloration of Water/Surfactant/Oil Emulsions. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2022; 38:569-575. [PMID: 34933556 PMCID: PMC8757461 DOI: 10.1021/acs.langmuir.1c03020] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Stimuli-responsive structural color in nature has fascinated scientists, directing them to develop artificial coloration materials that adjust colors in response to external stimuli. Many stimuli-responsive structural color materials have been realized. However, only a few have reported on all-liquid-type materials, which have a particularly desirable feature because they impart their function to the device of any shape. We have previously reported the development of a consistent structural color within a narrow temperature range for all-liquid-type emulsions comprising a long-chain amidoamine derivative (C18AA) and tetraoctylammonium bromide (TOAB). In the present study, we demonstrate that introducing NaCl as an electrolyte affords a highly thermo-sensitive color-changing ability to the emulsions. The structural color of the emulsions can be controlled from red to blue by tuning the temperature. Furthermore, the C18AA and TOAB concentrations can independently regulate the color and coloring-temperature, respectively, realizing that the desired color can develop at a given temperature.
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Affiliation(s)
- Yuto Arai
- Department of Industrial Chemistry, Tokyo University of Science, 1-3 Kagurazaka, Shinjuku-ku, Tokyo 162-8601, Japan
| | - Nayuta Yashiro
- Department of Industrial Chemistry, Tokyo University of Science, 1-3 Kagurazaka, Shinjuku-ku, Tokyo 162-8601, Japan
| | - Yoshiro Imura
- Department of Industrial Chemistry, Tokyo University of Science, 1-3 Kagurazaka, Shinjuku-ku, Tokyo 162-8601, Japan
| | - Ke-Hsuan Wang
- Department of Industrial Chemistry, Tokyo University of Science, 1-3 Kagurazaka, Shinjuku-ku, Tokyo 162-8601, Japan
| | - Takeshi Kawai
- Department of Industrial Chemistry, Tokyo University of Science, 1-3 Kagurazaka, Shinjuku-ku, Tokyo 162-8601, Japan
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7
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Chervinskii S, Issah I, Lahikainen M, Rashed AR, Kuntze K, Priimagi A, Caglayan H. Humidity- and Temperature-Tunable Metal-Hydrogel-Metal Reflective Filters. ACS APPLIED MATERIALS & INTERFACES 2021; 13:50564-50572. [PMID: 34643385 PMCID: PMC8554756 DOI: 10.1021/acsami.1c15616] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/16/2021] [Accepted: 10/04/2021] [Indexed: 06/01/2023]
Abstract
A tunable reflectance filter based on a metal-hydrogel-metal structure responsive to humidity and temperature is reported. The filter employs a poly(N-isopropylacrylamide)-acrylamidobenzophenone (PNIPAm-BP) hydrogel as an insulator layer in the metal-insulator-metal (MIM) assembly. The optical resonance of the structure is tunable by water immersion across the visible and near-infrared range. Swelling/deswelling and the volume phase transition of the hydrogel allow continuous reversible humidity- and/or temperature-induced tuning of the optical resonance. This work paves the way toward low-cost large-area fabrication of actively tunable reversible photonic devices.
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Bookhold J, Dirksen M, Wiehemeier L, Knust S, Anselmetti D, Paneff F, Zhang X, Gölzhäuser A, Kottke T, Hellweg T. Smart membranes by electron beam cross-linking of copolymer microgels. SOFT MATTER 2021; 17:2205-2214. [PMID: 33459755 DOI: 10.1039/d0sm02041a] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Poly(N-isopropylacrylamide) (pNIPAM) based copolymer microgels were used to create free-standing, transferable, thermoresponsive membranes. The microgels were synthesized by copolymerization of NIPAM with N-benzylhydrylacrylamide (NBHAM). Monolayers of these colloidal gels were subsequently cross-linked using an electron gun leading to the formation of a connected monolayer. Furthermore, the cross-linked microgel layer is detached from the supporting material by dissolving the substrate. These unique systems can be used as transferable, thermoresponsive coatings and as thermoresponsive membranes. As a proof of principle for the use of such membranes we studied the ion transport through them at different temperatures revealing drastic changes when the lower critical solution temperature of the copolymer microgels is reached.
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Affiliation(s)
- Johannes Bookhold
- University Bielefeld, Department of Chemistry, Physical and Biophysical Chemistry, Universitätsstr. 25, 33615 Bielefeld, Germany.
| | - Maxim Dirksen
- University Bielefeld, Department of Chemistry, Physical and Biophysical Chemistry, Universitätsstr. 25, 33615 Bielefeld, Germany.
| | - Lars Wiehemeier
- University Bielefeld, Department of Chemistry, Physical and Biophysical Chemistry, Universitätsstr. 25, 33615 Bielefeld, Germany.
| | - Sebastian Knust
- University Bielefeld, Department of Physics, Experimental Biophysics, Universitätsstr. 25, 33615 Bielefeld, Germany
| | - Dario Anselmetti
- University Bielefeld, Department of Physics, Experimental Biophysics, Universitätsstr. 25, 33615 Bielefeld, Germany
| | - Florian Paneff
- University Bielefeld, Department of Physics, Physics of Supermolecular Systems and Surfaces, Universitätsstr. 25, 33615 Bielefeld, Germany
| | - Xianghui Zhang
- University Bielefeld, Department of Physics, Physics of Supermolecular Systems and Surfaces, Universitätsstr. 25, 33615 Bielefeld, Germany
| | - Armin Gölzhäuser
- University Bielefeld, Department of Physics, Physics of Supermolecular Systems and Surfaces, Universitätsstr. 25, 33615 Bielefeld, Germany
| | - Tilman Kottke
- University Bielefeld, Department of Chemistry, Physical and Biophysical Chemistry, Universitätsstr. 25, 33615 Bielefeld, Germany.
| | - Thomas Hellweg
- University Bielefeld, Department of Chemistry, Physical and Biophysical Chemistry, Universitätsstr. 25, 33615 Bielefeld, Germany.
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Jung SH, Lee HT, Park MJ, Lim B, Park BC, Jung YJ, Kong H, Hwang DH, Lee HI, Park JM. Precisely Tunable Humidity Color Indicator Based on Photonic Polymer Films. Macromolecules 2021. [DOI: 10.1021/acs.macromol.0c01911] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Seo-Hyun Jung
- Center for Advanced Specialty Chemicals, Korea Research Institute of Chemical Technology, Ulsan 681-802, Republic of Korea
- Department of Chemistry, University of Ulsan, Ulsan 680-749, Republic of Korea
| | - Hyun Tae Lee
- Center for Advanced Specialty Chemicals, Korea Research Institute of Chemical Technology, Ulsan 681-802, Republic of Korea
- Department of Chemistry, and Chemistry Institute for Functional Materials, Pusan National University, Busan 46241, Republic of Korea
| | - Min Ji Park
- Center for Advanced Specialty Chemicals, Korea Research Institute of Chemical Technology, Ulsan 681-802, Republic of Korea
- Department of Chemistry, and Chemistry Institute for Functional Materials, Pusan National University, Busan 46241, Republic of Korea
| | - Bogyu Lim
- Center for Advanced Specialty Chemicals, Korea Research Institute of Chemical Technology, Ulsan 681-802, Republic of Korea
| | - Byong Chon Park
- Korea Research Institute of Standards and Science, Daejeon 305-340, Republic of Korea
| | - Yu Jin Jung
- Center for Advanced Specialty Chemicals, Korea Research Institute of Chemical Technology, Ulsan 681-802, Republic of Korea
| | - Hoyoul Kong
- Center for Advanced Specialty Chemicals, Korea Research Institute of Chemical Technology, Ulsan 681-802, Republic of Korea
| | - Do-Hoon Hwang
- Department of Chemistry, and Chemistry Institute for Functional Materials, Pusan National University, Busan 46241, Republic of Korea
| | - Hyung-il Lee
- Department of Chemistry, University of Ulsan, Ulsan 680-749, Republic of Korea
| | - Jong Mok Park
- Center for Advanced Specialty Chemicals, Korea Research Institute of Chemical Technology, Ulsan 681-802, Republic of Korea
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Carvalho WSP, Lee C, Zhang Y, Czarnecki A, Serpe MJ. Probing the response of poly (N-isopropylacrylamide) microgels to solutions of various salts using etalons. J Colloid Interface Sci 2020; 585:195-204. [PMID: 33279702 DOI: 10.1016/j.jcis.2020.11.045] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2020] [Revised: 10/20/2020] [Accepted: 11/10/2020] [Indexed: 12/20/2022]
Abstract
The Hofmeister series is a qualitative ordering of ions according to their ability to precipitate proteins in aqueous solution and is extremely important to consider when trying to understand materials and biomolecular structure and function. Herein, we utilized optical devices (etalons) composed of poly(N-isopropylacrylamide) (pNIPAm)-co-10% acrylic acid (AAc) or pNIPAm-based microgels to investigate how various salts in the Hofmeister series influenced the microgel hydration state. Etalons were exposed to a series of salts solutions at different concentrations and the position of the peaks in the reflectance spectra monitored using reflectance spectroscopy. As expected, pNIPAm-co-10%AAc microgel-based etalons responded to the presence of ions, although in this case the response to cations deviated from the Hofmeister series. However, when using etalons prepared with pNIPAm-based microgels, the responses followed the Hofmeister series for both cation and anions. Finally, we observed that the sensitivity of etalons prepared with pNIPAm microgels was significantly higher than the response obtained from etalons composed of pNIPAm-co-10%AAc microgels. This was explained by considering the charge on the pNIPAm-co-10%AAc microgels that influences how osmotic and Hofmeister effects impacts hydration state.
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Affiliation(s)
| | - Cayo Lee
- Department of Chemistry, University of Alberta, Edmonton, AB T6G 2G2, Canada
| | - Yingnan Zhang
- Department of Chemistry, University of Alberta, Edmonton, AB T6G 2G2, Canada
| | - Adam Czarnecki
- Department of Chemistry, University of Alberta, Edmonton, AB T6G 2G2, Canada
| | - Michael J Serpe
- Department of Chemistry, University of Alberta, Edmonton, AB T6G 2G2, Canada.
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11
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Caputo TM, Aliberti A, Cusano AM, Ruvo M, Cutolo A, Cusano A. Stimuli‐responsive hybrid microgels for controlled drug delivery: Sorafenib as a model drug. J Appl Polym Sci 2020. [DOI: 10.1002/app.50147] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
- Tania Mariastella Caputo
- CeRICT scrl Regional Center Information Communication Technology Benevento Italy
- Optoelectronics Group, Department of Engineering University of Sannio Benevento Italy
| | - Anna Aliberti
- Optoelectronics Group, Department of Engineering University of Sannio Benevento Italy
| | - Angela Maria Cusano
- CeRICT scrl Regional Center Information Communication Technology Benevento Italy
| | - Menotti Ruvo
- Institute of Biostructure and Bioimaging National Research Council Naples Italy
| | - Antonello Cutolo
- Department of Electrical Engineering and Information Technology University of Naples Federico II Naples Italy
| | - Andrea Cusano
- CeRICT scrl Regional Center Information Communication Technology Benevento Italy
- Optoelectronics Group, Department of Engineering University of Sannio Benevento Italy
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12
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Imparting Photo-responsive Function to Thermo-responsive Iridescent Emulsions. COLLOIDS AND INTERFACES 2018. [DOI: 10.3390/colloids2040047] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
In our previous paper, we reported that thermo-responsive emulsions can be prepared based on a long-chain amidoamine derivative (C18AA) and tetraoctylammonium bromide (TOAB), and that the C18AA + TOAB emulsions developed a characteristic interference color in a narrow temperature range. However, the coloration of the original C18AA + TOAB at room temperature exhibited poor brightness. In the present study, we show that the addition of NaOH is effective in both lowering the coloration temperature and improving the brightness of C18AA + TOAB emulsion considerably. Furthermore, we demonstrate that photo-response function can be imparted to C18AA + TOAB iridescent emulsions by introducing a photochromic naphthopyran derivative (Pyran) that reversibly changes from white to yellow upon UV irradiation. The C18AA + TOAB emulsions containing Pyran shows a dual stimuli-responsive iridescent property, and the emulsion color is controllable and reversible through both UV irradiation and temperature.
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13
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Synthesis and Characterization of pH-Responsive Organic–Inorganic Hybrid Material with Excellent Catalytic Activity. J Inorg Organomet Polym Mater 2018. [DOI: 10.1007/s10904-018-0879-7] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
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14
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Isapour G, Lattuada M. Bioinspired Stimuli-Responsive Color-Changing Systems. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2018; 30:e1707069. [PMID: 29700857 DOI: 10.1002/adma.201707069] [Citation(s) in RCA: 143] [Impact Index Per Article: 23.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/03/2017] [Revised: 01/16/2018] [Indexed: 06/08/2023]
Abstract
Stimuli-responsive colors are a unique characteristic of certain animals, evolved as either a method to hide from enemies and prey or to communicate their presence to rivals or mates. From a material science perspective, the solutions developed by Mother Nature to achieve these effects are a source of inspiration to scientists for decades. Here, an updated overview of the literature on bioinspired stimuli-responsive color-changing systems is provided. Starting from natural systems, which are the source of inspiration, a classification of the different solutions proposed is given, based on the stimuli used to trigger the color-changing effect.
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Affiliation(s)
- Golnaz Isapour
- Department of Chemistry, University of Fribourg, Chemin du Musée 9, CH-1700, Fribourg, Switzerland
| | - Marco Lattuada
- Department of Chemistry, University of Fribourg, Chemin du Musée 9, CH-1700, Fribourg, Switzerland
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15
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Fei X, Lu T, Ma J, Wang W, Zhu S, Zhang D. Bioinspired Polymeric Photonic Crystals for High Cycling pH-Sensing Performance. ACS APPLIED MATERIALS & INTERFACES 2016; 8:27091-27098. [PMID: 27640613 DOI: 10.1021/acsami.6b08724] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Artificial photonic crystals (PCs) have been extensively studied to improve the sensing performance of poly(acrylic acid) (PAAc), as it can transform the PAAc volume change into optical signal which is easier to read. Nevertheless, these PCs are limited by the monostructure. We herein developed new photonic crystals (PCs) by coating acrylic acid and acrylamide (AAm) via in situ copolymerization onto Papilio paris wings having hierarchical, lamellar structure. Our PCs exhibited high performance of color tunability to environmental pH, as detected by reflectance spectra and visual observation. The introduction of AAm into the system created covalent bonding which robustly bridged the polymer with the wings, leading to an accurate yet broad variation of reflection wavelength to gauge environmental pH. The reflection wavelength can be tailored by the refractive index of the lamellar interspacing due to the swelling/deswelling of the polymer. The mechanism is not only supported by experimenta but proved by finite-difference time-domain simulation. Moreover, It is worth noting that the covalent bonding has provided the PCs-based pH sensor with high cycling performance, implying great potential in practical applications. The simple fabrication process is applicable to the development of a wide variety of stimuli-responsive PCs taking advantage of other polymers.
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Affiliation(s)
- Xiang Fei
- State Key Laboratory of Metal Matrix Composites, School of Materials Science and Engineering, Shanghai Jiao Tong University , Shanghai 200240, China
| | - Tao Lu
- State Key Laboratory of Metal Matrix Composites, School of Materials Science and Engineering, Shanghai Jiao Tong University , Shanghai 200240, China
| | - Jun Ma
- School of Engineering, University of South Australia , Mawson Lakes, SA 5095, Australia
| | - Wanlin Wang
- College of Electronic Science and Technology and Guangdong Provincial Key Laboratory of Optoelectronic Micro/Nano Optomechatronics Engineering, Shenzhen University , Shenzhen 518060, China
| | - Shenmin Zhu
- State Key Laboratory of Metal Matrix Composites, School of Materials Science and Engineering, Shanghai Jiao Tong University , Shanghai 200240, China
| | - Di Zhang
- State Key Laboratory of Metal Matrix Composites, School of Materials Science and Engineering, Shanghai Jiao Tong University , Shanghai 200240, China
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Stimuli-Responsive Assemblies for Sensing Applications. Gels 2016; 2:gels2010008. [PMID: 30674140 PMCID: PMC6318645 DOI: 10.3390/gels2010008] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2015] [Revised: 01/27/2016] [Accepted: 02/01/2016] [Indexed: 12/31/2022] Open
Abstract
Poly (N-isopropylacrylamide) (pNIPAm)-based hydrogels and hydrogel particles (microgels) have been extensively studied since their discovery a number of decades ago. While their utility seems to have no limit, this feature article is focused on their development and application for sensing small molecules, macromolecules, and biomolecules. We highlight hydrogel/microgel-based photonic materials that have order in one, two, or three dimensions, which exhibit optical properties that depend on the presence and concentration of various analytes. A particular focus is put on one-dimensional materials developed in the Serpe Group.
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17
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Gao Y, Wong KY, Ahiabu A, Serpe MJ. Sequential and controlled release of small molecules from poly(N-isopropylacrylamide) microgel-based reservoir devices. J Mater Chem B 2016; 4:5144-5150. [DOI: 10.1039/c6tb00864j] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
Devices capable of releasing two different small molecules independently, at defined release kinetics, were prepared and their behavior characterized.
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Affiliation(s)
- Yongfeng Gao
- Department of Chemistry
- University of Alberta
- Edmonton
- Canada T6G 2G2
| | - Ka Yee Wong
- Department of Chemistry
- University of Alberta
- Edmonton
- Canada T6G 2G2
| | - Andrews Ahiabu
- Department of Chemistry
- University of Alberta
- Edmonton
- Canada T6G 2G2
| | - Michael J. Serpe
- Department of Chemistry
- University of Alberta
- Edmonton
- Canada T6G 2G2
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18
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Zhao W, Nugroho RW, Odelius K, Edlund U, Zhao C, Albertsson AC. In situ cross-linking of stimuli-responsive hemicellulose microgels during spray drying. ACS APPLIED MATERIALS & INTERFACES 2015; 7:4202-15. [PMID: 25630464 PMCID: PMC4535707 DOI: 10.1021/am5084732] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/02/2014] [Accepted: 01/29/2015] [Indexed: 05/23/2023]
Abstract
Chemical cross-linking during spray drying offers the potential for green fabrication of microgels with a rapid stimuli response and good blood compatibility and provides a platform for stimuli-responsive hemicellulose microgels (SRHMGs). The cross-linking reaction occurs rapidly in situ at elevated temperature during spray drying, enabling the production of microgels in a large scale within a few minutes. The SRHMGs with an average size range of ∼ 1-4 μm contain O-acetyl-galactoglucomannan as a matrix and poly(acrylic acid), aniline pentamer (AP), and iron as functional additives, which are responsive to external changes in pH, electrochemical stimuli, magnetic field, or dual-stimuli. The surface morphologies, chemical compositions, charge, pH, and mechanical properties of these smart microgels were evaluated using scanning electron microscopy, IR, zeta potential measurements, pH evaluation, and quantitative nanomechanical mapping, respectively. Different oxidation states were observed when AP was introduced, as confirmed by UV spectroscopy and cyclic voltammetry. Systematic blood compatibility evaluations revealed that the SRHMGs have good blood compatibility. This bottom-up strategy to synthesize SRHMGs enables a new route to the production of smart microgels for biomedical applications.
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Affiliation(s)
- Weifeng Zhao
- Fiber
and Polymer Technology, School of Chemical Science and Engineering, Royal Institute of Technology, Teknikringen 56-58, SE-100 44 Stockholm, Sweden
- College
of Polymer Science and Engineering, State Key Laboratory of Polymer
Materials Engineering, Sichuan University, 610065 Chengdu, China
| | - Robertus Wahyu
N. Nugroho
- Fiber
and Polymer Technology, School of Chemical Science and Engineering, Royal Institute of Technology, Teknikringen 56-58, SE-100 44 Stockholm, Sweden
| | - Karin Odelius
- Fiber
and Polymer Technology, School of Chemical Science and Engineering, Royal Institute of Technology, Teknikringen 56-58, SE-100 44 Stockholm, Sweden
| | - Ulrica Edlund
- Fiber
and Polymer Technology, School of Chemical Science and Engineering, Royal Institute of Technology, Teknikringen 56-58, SE-100 44 Stockholm, Sweden
| | - Changsheng Zhao
- College
of Polymer Science and Engineering, State Key Laboratory of Polymer
Materials Engineering, Sichuan University, 610065 Chengdu, China
| | - Ann-Christine Albertsson
- Fiber
and Polymer Technology, School of Chemical Science and Engineering, Royal Institute of Technology, Teknikringen 56-58, SE-100 44 Stockholm, Sweden
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19
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Abstract
Responsive polymers have found numerous applications over the years. This review highlights their use as components of photonic materials, with emphasis on responsive polymer-based etalons. The use of these materials for sensing and biosensing is detailed.
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Affiliation(s)
- Yongfeng Gao
- Department of Chemistry
- University of Alberta
- Edmonton
- Canada
| | - Xue Li
- Department of Chemistry
- University of Alberta
- Edmonton
- Canada
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20
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Wei M, Gao Y, Serpe MJ. Polymer brush-based optical device with multiple responsivities. J Mater Chem B 2015; 3:744-747. [DOI: 10.1039/c4tb01950d] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Abstract
Poly(N-isopropylacrylamide) brush-based optical materials were fabricated, and the tunability of their optical properties characterized.
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Affiliation(s)
- Menglian Wei
- Department of Chemistry
- University of Alberta
- Edmonton
- T6G 2G2 Canada
| | - Yongfeng Gao
- Department of Chemistry
- University of Alberta
- Edmonton
- T6G 2G2 Canada
| | - Michael J. Serpe
- Department of Chemistry
- University of Alberta
- Edmonton
- T6G 2G2 Canada
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21
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Jiang MY, Ju XJ, Fang L, Liu Z, Yu HR, Jiang L, Wang W, Xie R, Chen Q, Chu LY. A novel, smart microsphere with K(+)-induced shrinking and aggregating properties based on a responsive host-guest system. ACS APPLIED MATERIALS & INTERFACES 2014; 6:19405-15. [PMID: 25325533 DOI: 10.1021/am505506v] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/15/2023]
Abstract
A novel type of smart microspheres with K(+)-induced shrinking and aggregating properties is designed and developed on the basis of a K(+)-recognition host-guest system. The microspheres are composed of cross-linked poly(N-isopropylacrylamide-co-acryloylamidobenzo-15-crown-5) (P(NIPAM-co-AAB15C5)) networks. Due to the formation of stable 2:1 "sandwich-type" host-guest complexes between 15-crown-5 units and K(+) ions, the P(NIPAM-co-AAB15C5) microspheres significantly exhibit isothermally and synchronously K(+)-induced shrinking and aggregating properties at a low K(+) concentration, while other cations (e.g., Na(+), H(+), NH4(+), Mg(2+), or Ca(2+)) cannot trigger such response behaviors. Effects of chemical compositions of microspheres on the K(+)-induced shrinking and aggregating behaviors are investigated systematically. The K(+)-induced aggregating sensitivity of the P(NIPAM-co-AAB15C5) microspheres can be enhanced by increasing the content of crown ether units in the polymeric networks; however, it is nearly not influenced by varying the monomer and cross-linker concentrations in the microsphere preparation. State diagrams of the dispersed-to-aggregated transformation of P(NIPAM-co-AAB15C5) microspheres in aqueous solutions as a function of temperature and K(+) concentration are constructed, which provide valuable information for tuning the dispersed/aggregated states of microspheres by varying environmental K(+) concentration and temperature. The microspheres with synchronously K(+)-induced shrinking and aggregating properties proposed in this study provide a brand-new model for designing novel targeted drug delivery systems.
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Affiliation(s)
- Ming-Yue Jiang
- School of Chemical Engineering, Sichuan University , Chengdu, Sichuan 610065, P. R. China
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