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1. Azobenzene-Bridged Expanded “Texas-sized” Box: A Dual-Responsive Receptor for Aryl Dianion Encapsulation

Author:
Chi, Xiaodong; Cen, Wanglai; Queenan, Jack A.; Long, Lingliang; Lynch, Vincent M.; Khashab, Niveen M.; Sessler, Jonathan L.
Source:
Journal of the American Chemical Society 2019 v.141 no.16 pp. 6468-6472
ISSN:
1520-5126
Subject:
encapsulation,   etc   ; pH; photoisomerization;     Show all 3 Subjects
Abstract:
... We report an expanded “Texas-sized” molecular box (AzoTxSB) that incorporates photoresponsive azobenzene bridging subunits and anion recognition motifs. The shape of this box can be switched through light induced E ↔ Z photoisomerization of the constituent azobenzenes. This allows various anionic substrates to be bound and released by using different forms of the box. Control can also be achieved ...
DOI:
10.1021/jacs.9b01241

2. Cyclopenta[hi]aceanthrylene-based dopant-free hole-transport material for organic–inorganic hybrid and all-inorganic perovskite solar cells

Author:
Zhang, Dongyang; Xu, Peng; Wu, Tai; Ou, Yangmei; Yang, Xiutao; Sun, Anxin; Cui, Bo; Sun, Hanwen; Hua, Yong
Source:
Journal of materials chemistry A 2019 v.7 no.10 pp. 5221-5226
ISSN:
2050-7496
Subject:
encapsulation,   etc   ; chemistry; solar cells;     Show all 3 Subjects
Abstract:
... Hole-transport materials (HTMs) play an important role in the most highly performing perovskite solar cells (PSCs). In this work, for the first time, an efficient cyclopenta[hi]aceanthrylene-based dopant-free D-A-D type hole transport material (HTM) YN3 is developed for application in organic–inorganic hybrid and all-inorganic perovskite solar cells (PSCs) with high performance. The (FAPbI₃)₀.₈₅(M ...
DOI:
10.1039/c8ta12139g

3. Silicene Passivation by Few-Layer Graphene

Author:
Ritter, Viktoria; Genser, Jakob; Nazzari, Daniele; Bethge, Ole; Bertagnolli, Emmerich; Lugstein, Alois
Source:
ACS applied materials & interfaces 2019 v.11 no.13 pp. 12745-12751
ISSN:
1944-8252
Subject:
encapsulation,   etc   ; Raman spectroscopy; graphene; materials science; silver;     Show all 5 Subjects
Abstract:
... The stabilization of silicene at ambient conditions is essential for its characterization, future processing, and device integration. Here, we demonstrate in situ encapsulation of silicene on Ag(111) by exfoliated few-layer graphene (FLG) flakes, allowing subsequent Raman analysis under ambient conditions. Raman spectroscopy measurements proved that FLG capping serves as an effective passivation, ...
DOI:
10.1021/acsami.8b20751

4. Molecular Design of an Interfacially Active POSS-Bottlebrush Block Copolymer for the Fabrication of Three-Dimensional Porous Films with Unimodal Pore Size Distributions through the Breath-Figure Self-Assembly

Author:
Chae, Chang-Geun; Yu, Yong-Guen; Seo, Ho-Bin; Kim, Myung-Jin; Mallela, Y. L. N. Kishore; Lee, Jae-Suk
Source:
Macromolecules 2019 v.52 no.5 pp. 1912-1922
ISSN:
1520-5835
Subject:
encapsulation,   etc   ; adsorption; composite polymers; droplets; polymerization; porosity;     Show all 6 Subjects
Abstract:
... We compared the interfacial activity of two classes of POSS-bottlebrush block copolymers (POSSBBCPs) in the breath-figure (BF) self-assembly. Poly[3-(5-norbornene-exo-2,3-dicarboximido)propyl-heptaisobutyl POSS]-block-poly(exo-5-norbornene-2-carbonylate-graft-benzyl methacrylate) (P1-b-P(NB-g-BzMA)) and poly[3-(2-(5-norbornene-exo-2,3-dicarboximido)ethylamino)propyl-heptaisobutyl POSS]-block-poly( ...
DOI:
10.1021/acs.macromol.9b00089

5. Cereal biopolymers for nano- and microtechnology: A myriad of opportunities for novel (functional) food applications

Author:
Joye, Iris J.
Source:
Trends in food science & technology 2019 v.83 pp. 1-11
ISSN:
0924-2244
Subject:
encapsulation,   etc   ; biopolymers; diet; food production; food safety;     Show all 5 Subjects
Abstract:
... Cereal biopolymers are widely available, inexpensive and versatile molecules used for nano- and microtechnology applications that will shape the future of our daily food. The way in which we currently produce and consume food is not sustainable and a food revolution is needed to meet current and future challenges in terms of ensuring a healthy, affordable diet, food safety, sustainability and secu ...
DOI:
10.1016/j.tifs.2018.10.009

6. Determination of the bond–slip relationship of fully grouted rockbolts

Author:
Ma, Shuqi; Zhu, Xing; Qin, Weiwei; Hu, Shugang
Source:
Environmental earth sciences 2018 v.77 no.9 pp. 326
ISSN:
1866-6280
Subject:
encapsulation,   etc   ; bolts; shear stress;     Show all 3 Subjects
Abstract:
... The bond–slip relationship of fully grouted rockbolts with long encapsulation lengths is critical to the bolt axial performances. However, how to properly determine its profile still remains a challenge. It is proposed that the pullout tests of short encapsulated rockbolts could be used to estimate the bond–slip relationships of long rockbolts under the same conditions. This method is based on two ...
DOI:
10.1007/s12665-018-7495-2

7. Enhancement of metal–metal interactions inside a large-cavity synthetic host in water

Author:
Kuang, Shengjian; Hu, Zhixiong; Zhang, Hao; Zhang, Xiongzhi; Liang, Feng; Zhao, Zhiyong; Liu, Simin
Source:
Chemical communications 2018 v.54 no.17 pp. 2169-2172
ISSN:
1364-548X
Subject:
encapsulation,   etc   ; chemical reactions; polymers;     Show all 3 Subjects
Abstract:
... The encapsulation of a series of metal–terpyridyl complexes in cucurbit[10]uril (CB[10]) in water is described. A strong enhancement of metal–metal and π–π interactions is observed due to double confinement in the large cavity. Furthermore, a linear supramolecular polymer featuring host-enhanced metallophilic interactions in water can be prepared. ...
DOI:
10.1039/c8cc00593a

8. Delegation of powers and the rule of law: Energy justice in EU energy regulation

Author:
Maher, Imelda; Stefan, Oana
Source:
Energy policy 2019 v.128 pp. 84-93
ISSN:
0301-4215
Subject:
encapsulation,   etc   ; European Union; energy; energy policy; governance; models;     Show all 6 Subjects
Abstract:
... This article examines the legal frameworks surrounding the EU energy policy and its associated institutional architecture. Particular focus is on the Agency for Cooperation of Energy Regulators (ACER). Taking stock of ongoing debates concerning the Energy Union and recently proposed reforms, the purpose of this analysis is twofold. First, from a theoretical perspective, this article explores the l ...
DOI:
10.1016/j.enpol.2018.12.046

9. Bis[di(4-methoxyphenyl)amino]carbazole-capped indacenodithiophenes as hole transport materials for highly efficient perovskite solar cells: the pronounced positioning effect of a donor group on the cell performance

Author:
Hua, Yong; Chen, Song; Zhang, Dongyang; Xu, Peng; Sun, Anxin; Ou, Yangmei; Wu, Tai; Sun, Hanwen; Cui, Bo; Zhu, Xunjin
Source:
Journal of materials chemistry A 2019 v.7 no.17 pp. 10200-10205
ISSN:
2050-7496
Subject:
encapsulation,   etc   ; engineering; hydrophobicity; lighting; solar cells; working conditions;     Show all 6 Subjects
Abstract:
... Bis[di(4-methoxyphenyl)amino]carbazole-capped indacenodithiophenes (IDTs) have been constructed as hole transport materials (HTMs) for perovskite solar cells (PSCs). Two IDT-based HTMs, one with 3,6-bis[di(4-methoxyphenyl)amino]carbazole (YK1) and another with 2,7-bis[di(4-methoxyphenyl)amino]carbazole (YK2), show different performances in PSCs. The PSC device based on YK1 displays a very impressi ...
DOI:
10.1039/c9ta01731c

10. Double-headed nanosystems for oral drug delivery

Author:
KaurThese authors contributed equally to this article., G.; Arora, M.; Ganugula, R.; Kumar, M. N. V. Ravi
Source:
Chemical communications 2019 v.55 no.33 pp. 4761-4764
ISSN:
1364-548X
Subject:
encapsulation,   etc   ; bioavailability; chemical reactions; curcumin; drugs; ligands; nanotechnology; polyesters;     Show all 8 Subjects
Abstract:
... We demonstrate a novel strategy to engineer double-headed nanosystems by chemical modification of the carboxyl terminal polyester with a linker that offers tripodal arrangement of ligands on the particle surfaces. The in vivo results suggest that the bioavailability of encapsulated curcumin is proportional to the ligand density rendered by double-headed nanosystems. ...
DOI:
10.1039/c8cc10021g

11. Drugs/lamellae interface influences the inner structure of double-loaded liposomes for inhaled anti-TB therapy: An in-depth small-angle neutron scattering investigation

Author:
Truzzi, Eleonora; Meneghetti, Fiorella; Mori, Matteo; Costantino, Luca; Iannuccelli, Valentina; Maretti, Eleonora; Domenici, Fabio; Castellano, Carlo; Rogers, Sarah; Capocefalo, Angela; Leo, Eliana
Source:
Journal of colloid and interface science 2019 v.541 pp. 399-406
ISSN:
0021-9797
Subject:
encapsulation,   etc   ; breathing; drug carriers; drugs; isoniazid; neutron diffraction; rifampicin;     Show all 7 Subjects
Abstract:
... With the aim of developing new drug carriers for inhalation therapy, we report here an in depth investigation of the structure of multilamellar liposomes loaded with two well-established anti-tubercular (anti-TB) drugs, isoniazid (INH) and rifampicin (RIF), by means of small-angle neutron-scattering (SANS) analysis. Unloaded, single drug-loaded and co-loaded liposomes were prepared using different ...
DOI:
10.1016/j.jcis.2019.01.094

12. Efficient fabrication of reversible pH-induced carboxymethyl chitosan nanoparticles for antitumor drug delivery under weakly acidic microenvironment

Author:
Li, Tao; Yang, Jin; Liu, Rong; Yi, Yang; Huang, Mengtian; Wu, Yang; Tu, Hu; Zhang, Li
Source:
International journal of biological macromolecules 2019 v.126 pp. 68-73
ISSN:
0141-8130
Subject:
encapsulation,   etc   ; aqueous solutions; chitosan; colloids; doxorubicin; nanoparticles; neoplasms; pH; therapeutics;     Show all 9 Subjects
Abstract:
... Searching for the carrier systems for drug controlled release under weakly acidic condition related to tumor environment has attracted a tremendous level of attention. In this study, amphiphilic carboxymethyl chitosan (CMC) was employed to fabricate nanoparticles (NPs) with an efficient and simple method by adjusting the pH values of CMC aqueous solutions. The prepared NPs could not only capture t ...
DOI:
10.1016/j.ijbiomac.2018.12.178

13. Electrostatic Control of Macrocyclization Reactions within Nanospaces

Author:
Wang, Kaiya; Cai, Xiaoyang; Yao, Wei; Tang, Du; Kataria, Rhea; Ashbaugh, Henry S.; Byers, Larry D; Gibb, Bruce C.
Source:
Journal of the American Chemical Society 2019 v.141 no.16 pp. 6740-6747
ISSN:
1520-5126
Subject:
encapsulation,   etc   ; acidity; enzymes; macrocyclization reactions; mathematical models; proteins;     Show all 6 Subjects
Abstract:
... The intrinsic structural complexity of proteins makes it hard to identify the contributions of each noncovalent interaction behind the remarkable rate accelerations of enzymes. Coulombic forces are evidently primary, but despite developments in artificial nanoreactor design, a picture of the extent to which these can contribute has not been forthcoming. Here we report on two supramolecular capsule ...
DOI:
10.1021/jacs.9b02287

14. Guest–host interactions of nanoconfined anti-cancer drug in metal–organic framework exposed by terahertz dynamics

Author:
Souza, Barbara E.; Rudić, Svemir; Titov, Kirill; Babal, Arun S.; Taylor, James D.; Tan, Jin-Chong
Source:
Chemical communications 2019 v.55 no.27 pp. 3868-3871
ISSN:
1364-548X
Subject:
encapsulation,   etc   ; chemical reactions; coordination polymers; fluorouracil; mechanochemistry; neutrons; spectroscopy;     Show all 7 Subjects
Abstract:
... A facile mechanochemical method was employed to accomplish one-pot encapsulation of anti-cancer drug 5-fluorouracil (5-FU as guest) in a metal–organic framework (HKUST-1 as host). Vibrational spectroscopy via inelastic neutron scattering was applied to probe guest–host interactions arising from nanoscale confinement. We compare 5-FU@HKUST-1 derived from in situ and ex situ encapsulation. ...
DOI:
10.1039/c8cc10089f

15. Asymmetric Molecular Conformation of Steric Terfluorene toward Constructing Polyhedral Microcrystals for Deep-Blue Lasers

Author:
An, Xiang; Yu, Meng-Na; Bai, Lu-Bing; Sun, Li-Li; Sun, Ning; Han, Ya-Min; Wei, Chuan-Xin; Xu, Wei; Lin, Jin-Yi; Ou, Chang-Jin; Xie, Ling-Hai; Ding, Xue-Hua; Xu, Chun-Xiang; Huang, Wei
Source:
Journal of physical chemistry 2019 v.123 no.15 pp. 10000-10006
ISSN:
1932-7455
Subject:
encapsulation,   etc   ; crystal structure; hydrogen bonding; lasers; molecular conformation; semiconductors;     Show all 6 Subjects
Abstract:
... Molecular conformation is crucial for precisely controlling photophysical processing and self-assembly behavior of organic conjugated semiconductors for optoelectronic applications. Herein, we obtained a novel asymmetric molecular conformation of steric terfluorene with torsion angles of −172 and 44° to enable its molecules to self-assemble into a polyhedral microcrystal for deep-blue lasers. Inte ...
DOI:
10.1021/acs.jpcc.8b12143

16. Organic Janus Microspheres: A General Approach to All-Color Dual-Wavelength Microlasers

Author:
Wei, Cong; Du, Yuxiang; Liu, Yingying; Lin, Xianqing; Zhang, Chuang; Yao, Jiannian; Zhao, Yong Sheng
Source:
Journal of the American Chemical Society 2019 v.141 no.13 pp. 5116-5120
ISSN:
1520-5126
Subject:
encapsulation,   etc   ; dyes; hydrophilicity; hydrophobicity; lasers; nanoparticles; photons; wavelengths;     Show all 8 Subjects
Abstract:
... We propose a general approach for obtaining dual-wavelength organic microlasers in amphiphilic Janus resonators, where hydrophilic and hydrophobic dyes can be spatially separated via polarity-driven encapsulation. Low-threshold dual-wavelength lasing was achieved in a single Janus particle with well-modulated output. This universal approach enables flexibly designing the lasing wavelength of the J ...
DOI:
10.1021/jacs.9b00362

17. Bicelle-to-Vesicle Transition of a Binary Phospholipid Mixture Guided by Controlled Local Lipid Compositions: A Molecular Dynamics Simulation Study

Author:
Koshiyama, Kenichiro; Taneo, Masaki; Shigematsu, Taiki; Wada, Shigeo
Source:
TheJournal of physical chemistry 2019 v.123 no.14 pp. 3118-3123
ISSN:
1520-5207
Subject:
encapsulation,   etc   ; lipid composition; molecular dynamics; phosphatidylcholines; simulation models; sonication;     Show all 6 Subjects
Abstract:
... An essential step of nanoliposome formation in an aqueous lipid solution is the transition from discoidal lipid aggregate (bicelle) to vesicle. We investigate here the bicelle-to-vesicle transition of a binary lipid mixture of saturated and unsaturated phosphatidylcholine by performing nonequilibrium molecular dynamics simulations with the coarse-grained representation of di-palmitoyl-phosphatidyl ...
DOI:
10.1021/acs.jpcb.8b10682

18. Dual-wavelength lasing from organic dye encapsulated metal–organic framework microcrystals

Author:
ZhangY. Zhang, H. Dong and Y. Liu contributed equally to this work., Yue; Dong, Haiyun; Liu, Yuan; Zhang, Chunhuan; Hu, Fengqin; Zhao, Yong Sheng
Source:
Chemical communications 2019 v.55 no.24 pp. 3445-3448
ISSN:
1364-548X
Subject:
encapsulation,   etc   ; chemical interactions; chemical reactions; coordination polymers; dyes; lasers; wavelengths;     Show all 7 Subjects
Abstract:
... We demonstrate efficient and stable dual-wavelength microlasers fabricated by encapsulating different organic dyes into metal–organic framework (MOF) microcrystals. The intermolecular interactions between the organic dyes are suppressed effectively by the spatial confinement effect of the MOF pores, enabling a simultaneously efficient optical gain, and therefore lasing at different wavelengths. Th ...
DOI:
10.1039/c8cc10232e

19. Monoammonium Porphyrin for Blade-Coating Stable Large-Area Perovskite Solar Cells with >18% Efficiency

Author:
Li, Congping; Yin, Jun; Chen, Ruihao; Lv, Xudong; Feng, Xiaoxia; Wu, Yiying; Cao, Jing
Source:
Journal of the American Chemical Society 2019 v.141 no.15 pp. 6345-6351
ISSN:
1520-5126
Subject:
encapsulation,   etc   ; coatings; crystallization; humidity; lead; porphyrins; solar cells; synergism; zinc;     Show all 9 Subjects
Abstract:
... Efficient control of crystallization and defects of perovskite films are the key factors toward the performance and stability of perovskite solar cells (PSCs), especially for the preparation of large-area PSCs devices. Herein, we directly embedded surfactant-like monoammonium zinc porphyrin (ZnP) compound into the methylammonium (MA⁺) lead iodide perovskite film to blade-coat large-area uniform pe ...
DOI:
10.1021/jacs.9b01305

20. Endowing a Light-Inert Aqueous Surfactant Two-Phase System with Photoresponsiveness by Introducing a Trojan Horse

Author:
Yu, Menghong; Liu, Zihao; Du, Yichen; Ma, Cheng; Yan, Yun; Huang, Jianbin
Source:
ACS applied materials & interfaces 2019 v.11 no.16 pp. 15103-15110
ISSN:
1944-8252
Subject:
encapsulation,   etc   ; light; mixing; quaternary ammonium compounds; sodium; surfactants; ultraviolet radiation;     Show all 7 Subjects
Abstract:
... The ability to modulate the phase behavior of an aqueous surfactant two-phase (ASTP) system reversibly with light is of great importance in both fundamental and applied science. Thus far, most of the light-responsive ASTP systems are based on covalent modification of the component molecules. In this article, we, for the first time, achieve photoresponsiveness in a light-inert ASTP system by physic ...
DOI:
10.1021/acsami.8b20817