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1. Improving barrier and antibacterial properties of chitosan composite films by incorporating lignin nanoparticles and acylated soy protein isolate nanogel

Author:
Zhipeng Zou; Balarabe B. Ismail; Xinhui Zhang; Zhehao Yang; Donghong Liu; Mingming Guo
Source:
Food hydrocolloids 2023 v.134 pp. 108091
ISSN:
0268-005X
Subject:
nanogels,   etc   ; antibacterial properties; biocompatibility; biodegradability; chitosan; composite films; hydrocolloids; light transmission; lignin; oxygen; soy protein isolate; surface roughness; tensile strength;     Show all 13 Subjects
Abstract:
... Chitosan (CS) films have demonstrated strong antibacterial properties, excellent biocompatibility and biodegradability, but poor UV blocking, oxygen and water barrier and mechanical properties limit their application in antimicrobial food packaging. In this study, CS films were incorporated with nanofillers, including lignin nanoparticles (LNP, 1–5 wt %) and acylated soy protein isolate nanogel (A ...
DOI:
10.1016/j.foodhyd.2022.108091

2. Glycerol-compressed self-assembly nanogel based on ovomucin and chito-oligosaccharide: A novel green strategy for curcumin delivery

Author:
Xuanchen Li; Chunfang Yin; Boyu Liu; Long Zou; Qi Xu; Chang Ming Li
Source:
Food hydrocolloids 2023 v.134 pp. 107996
ISSN:
0268-005X
Subject:
nanogels,   etc   ; antioxidant activity; bioavailability; cell viability; curcumin; encapsulation; fluorescence microscopy; glycerol; hydrocolloids; hydrodynamics; hydrogen bonding; hydrophobic bonding; hydrophobicity; ovomucin; particle size distribution; toxicity; toxicity testing;     Show all 17 Subjects
Abstract:
... Nano-gel technology has been one of the popular methods to solve the low bioavailability of hydrophobic active substances. In this work, Ovomucin (OVM) was combined with chito-oligosaccharide (COS) by self-assembly, followed by condensation of complexes initiated via glycerol solution to produce green nanogel delivering curcumin. The successful encapsulation of curcumin was confirmed by UV–Vis spe ...
DOI:
10.1016/j.foodhyd.2022.107996

3. Insights into the formation of carboxymethyl chitosan-nisin nanogels for sustainable antibacterial activity

Author:
Chunhua Wu; Zijian Zhi; Mengxia Duan; Jishuang Sun; Haixin Jiang; Jie Pang
Source:
Food chemistry 2023 v.402 pp. 134260
ISSN:
0308-8146
Subject:
nanogels,   etc   ; Fourier transform infrared spectroscopy; X-ray photoelectron spectroscopy; antibacterial properties; biopreservatives; chitosan; crosslinking; food chemistry; food industry; hydrogen; nisin; particle size; simulation models; transmission electron microscopy; zeta potential;     Show all 15 Subjects
Abstract:
... To improve the sustainable antibacterial active of nisin, nisin-loaded carboxymethyl chitosan (CMCS-nisin) nanogels (CN NGs) are prepared via a combination method of electrostatic self-assembly and chemical cross-linking. The as-prepared CN NGs are profiled using dynamic light scattering, zeta potential, transmission electron microscopy, fourier transform infrared spectroscopy (FT-IR) and X-ray ph ...
DOI:
10.1016/j.foodchem.2022.134260

4. Nanogel Crosslinking-Based Belousov–Zhabotinsky Self-Oscillating Polyacrylamide Gel with Improved Mechanical Properties and Fast Oscillatory Response

Author:
Jing Wang; Lin Ren; Zhan Yu; Rui Teng; Changwei Pan; Ling Yuan; Irving R. Epstein; Qingyu Gao
Source:
Journal of physical chemistry 2022 v.126 no.5 pp. 1108-1114
ISSN:
1520-5207
Subject:
nanogels,   etc   ; polyacrylamide; redox potential;     Show all 3 Subjects
Abstract:
... The Belousov–Zhabotinsky (BZ) self-oscillating gel is a unique actuator suited for studying the behavior of intelligent soft robots. However, the traditional BZ self-oscillating polyacrylamide (PAAm) gel is easily broken and is slow to response to stimuli, which limits its practical application. Therefore, the preparation of BZ gels with sensitive responses to external stimuli and desirable, robus ...
DOI:
10.1021/acs.jpcb.1c07996

5. Nanogels loading 5-Fluorouracil in situ through thiol-ene click reaction and photopolymerization at 532 nm for its controlled release

Author:
Yuanyuan Peng; Xinjing Du; Daolian Zhu; Yu Nie; Shengbin Shi; Jinfeng Xing
Source:
Colloids and surfaces 2022 v.644 pp. 128872
ISSN:
0927-7757
Subject:
nanogels,   etc   ; Weibull statistics; fluorouracil; pH;     Show all 4 Subjects
Abstract:
... Drug-loaded nanogels have attracted extensive research interest and shown great potential for many biomedical applications. A facile preparation method for drug-loaded nanogels is desirable to be developed. In this study, a range of nanogels were prepared by combining thiol-ene click reaction and photopolymerization at 532 nm for in situ loading 5-Fluorouracil (NG-S). The drug loading amount was i ...
DOI:
10.1016/j.colsurfa.2022.128872

6. How Softness Matters in Soft Nanogels and Nanogel Assemblies

Author:
Andrea Scotti; M. Friederike Schulte; Carlos G. Lopez; Jérôme J. Crassous; Steffen Bochenek; Walter Richtering
Source:
Chemical reviews 2022 v.122 no.13 pp. 11675-11700
ISSN:
1520-6890
Subject:
nanogels,   etc   ; crosslinking; deformation; hardness; microscopy; polymers;     Show all 6 Subjects
Abstract:
... Softness plays a key role in determining the macroscopic properties of colloidal systems, from synthetic nanogels to biological macromolecules, from viruses to star polymers. However, we are missing a way to quantify what the term “softness” means in nanoscience. Having quantitative parameters is fundamental to compare different systems and understand what the consequences of softness on the macro ...
DOI:
10.1021/acs.chemrev.2c00035

7. Dual-responsive degradable core–shell nanogels with tuneable aggregation behaviour

Author:
Dominic M. Gray; Adam R. Town; Edyta Niezabitowska; Steve P. Rannard; Tom O. McDonald
Source:
RSC advances 2022 v.12 no.4 pp. 2196-2206
ISSN:
2046-2069
Subject:
nanogels,   etc   ; aggregation behavior; composite polymers; nanomedicine; pH;     Show all 5 Subjects
Abstract:
... We report the synthesis of core–shell nanogels by sequential addition of thermoresponsive monomers; N-isopropylacrylamide (NIPAM) and N-isopropylmethacrylamide (NIPMAM). The aggregation behaviour of aqueous dispersions of these particles in the presence of salt can be tuned by varying the monomer ratio. The inclusion of degradable cross-linker bis(acryloyl)cystamine (BAC) allows the nanogels to de ...
DOI:
10.1039/d1ra07093b

8. Investigating the Kinetics and Structure of Network Formation in Ultraviolet-Photopolymerizable Starch Nanogel Network Hydrogels via Very Small-Angle Neutron Scattering and Small-Amplitude Oscillatory Shear Rheology

Author:
Michael J. Majcher; Sebastian Himbert; Francesco Vito; Matthew A. Campea; Ridhdhi Dave; Grethe Vetergaard Jensen; Maikel C. Rheinstadter; Niels M. B. Smeets; Todd Hoare
Source:
Macromolecules 2022 v.55 no.16 pp. 7303-7317
ISSN:
1520-5835
Subject:
nanogels,   etc   ; crosslinking; deformation; gelation; hydrogels; microgels; nanoparticles; neutrons; rheology; starch;     Show all 10 Subjects
Abstract:
... While photopolymerization has been broadly used to fabricate hydrogels, the kinetics of the structural evolution of such hydrogels during photopolymerization and how the kinetics relate to ultimate hydrogel properties are not well-understood. Herein, small-amplitude oscillatory shear rheology (bulk scale) and time-resolved very small-angle neutron scattering (vSANS, microscale) are used in tandem ...
DOI:
10.1021/acs.macromol.2c00874

9. Molecularly engineered CMC-caged PNIPAM for broadband light management in energy-saving window

Author:
Yang Liu; Qunfeng Chen; Gengmei Liu; Tao Tao; Haodong Sun; Zhenhui Lin; Lihui Chen; Qingxian Miao; Jianguo Li
Source:
Carbohydrate polymers 2022 v.281 pp. 119056
ISSN:
0144-8617
Subject:
nanogels,   etc   ; carbohydrates; electric power; energy conservation; sodium; temperature; transmittance;     Show all 7 Subjects
Abstract:
... Dynamic transparent-opaque transition behavior endows the stimuli-chromic materials with the solar modulation capability. However, these materials commonly involve the high manufacturing cost and complexity, the additional consumption of electric energy for solar modulation, or the weak effectiveness of light management. Herein, we develop a low-cost yet broadband light management sodium carboxyme ...
DOI:
10.1016/j.carbpol.2021.119056

10. Multifunctional stimuli-responsive hybrid nanogels for cancer therapy: Current status and challenges

Author:
Amaal Abdulraqeb Ali; Amani Al-Othman; Mohammad H. Al-Sayah
Source:
Journal of controlled release 2022 v.351 pp. 476-503
ISSN:
0168-3659
Subject:
nanogels,   etc   ; animals; biocompatibility; cancer therapy; cytotoxicity; manufacturing; neoplasms; toxicology;     Show all 8 Subjects
Abstract:
... With cancer research shifting focus to achieving multifunctionality in cancer treatment strategies, hybrid nanogels are making a rapid rise to the spotlight as novel, multifunctional, stimuli-responsive, and biocompatible cancer therapeutic strategies. They can possess cancer cell-specific cytotoxic effects themselves, carry drugs or enzymes that can produce cytotoxic effects, improve imaging moda ...
DOI:
10.1016/j.jconrel.2022.09.033

11. Overview of nanoparticulate strategies for solubility enhancement of poorly soluble drugs

Author:
Kifayat Ullah Khan; Muhammad Usman Minhas; Syed Faisal Badshah; Muhammad Suhail; Aousaf Ahmad; Shakeel Ijaz
Source:
Life sciences 2022 v.291 pp. 120301
ISSN:
0024-3205
Subject:
nanogels,   etc   ; bioavailability; drugs; lipids; mechanism of action; solubility; solubilization;     Show all 7 Subjects
Abstract:
... Poor aqueous solubility and poor bioavailability are major issues with many pharmaceutical industries. By some estimation, 70–90% drug candidates in development stage while up-to 40% of the marketed products are poorly soluble which leads to low bioavailability, reduced therapeutic effects and dosage escalation. That's why solubility is an important factor to consider during design and manufacturi ...
DOI:
10.1016/j.lfs.2022.120301

12. Poly(N-isopropylacrylamide)-interpenetrated chitosan coils working as nanoreactors for controlled silver nanoparticle growth

Author:
Marcelo R. Romero; Nicolas A. Coser; Manuel A. Pérez; Cesar G. Gomez
Source:
Carbohydrate polymers 2022 v.288 pp. 119374
ISSN:
0144-8617
Subject:
nanogels,   etc   ; chitosan; heat treatment; nanosilver; phase transition; rheology; silver; temperature; thermosensitivity;     Show all 9 Subjects
Abstract:
... A new precursor (Ag⁺/CS/PNIPA) arranged as a nanogel (nanoreactor) is obtained from the aqueous mixture of Ag⁺, chitosan (CS) and poly(N-isopropylacrylamide) (PNIPA). A model synthetic system based on the thermally induced aqueous silver ions-CS reaction to form silver nanoparticles (AgNP) is used as a starting point to assess the PNIPA role as a thermo-sensitive additive of synthesis in a low con ...
DOI:
10.1016/j.carbpol.2022.119374

13. Synthesis of silver nanoclusters in colloidal scaffold for biolabeling and antimicrobial applications

Author:
Jiaxin Xu; Mohankandhasamy Ramasamy; Teresa Tang; Yi Wang; Weinan Zhao; Kam Chiu Tam
Source:
Journal of colloid and interface science 2022 v.623 pp. 883-896
ISSN:
0021-9797
Subject:
nanogels,   etc   ; Escherichia; Staphylococcus aureus; lighting; nanosilver; photoirradiation; silver; ultraviolet radiation; yeasts;     Show all 9 Subjects
Abstract:
... A robust method to prepare silver nanoclusters (AgNCs) inside a methacrylic acid-ethyl acrylate (MAA-EA) nanogel is proposed, where AgNCs were produced within the nanogel scaffold via UV-photoreduction. The impact of UV irradiation time on the formation of AgNCs and their application in biolabeling and antimicrobial properties were examined. The AgNCs formation is described by two stages; (1) Agₙ ...
DOI:
10.1016/j.jcis.2022.05.084

14. Foaming and interfacial properties of desalted duck egg white nanogels after weak enzymatical hydrolyzation

Author:
Bin Zhou; Jingyun Zhao; Yujuan Rong; Mengchen Li; Hongshan Liang; Bin Li; Jing Sun
Source:
Food hydrocolloids 2023 v.134 pp. 108093
ISSN:
0268-005X
Subject:
nanogels,   etc   ; adsorption; desalination; duck eggs; egg albumen; hydrocolloids; hydrolysis; pH; pepsin;     Show all 9 Subjects
Abstract:
... Gel-assisted desalination is an efficient way of desalting salted duck egg whites, but results in severe loss of egg white functional properties, especially foaming properties. Here, slightly enzymatical hydrolyzation was used as a promising method to improve the interfacial properties of desalted duck egg white nanogels (DEWN). After partial hydrolysis (ranging from 2.27% to 4.22%), the foaming c ...
DOI:
10.1016/j.foodhyd.2022.108093

15. Rational construction of polycystine-based nanoparticles for biomedical applications

Author:
Jinjin Chen; Jiazhen Yang; Jianxun Ding
Source:
Journal of materials chemistry B 2022 v.10 no.37 pp. 7173-7182
ISSN:
2050-7518
Subject:
nanogels,   etc   ; biosafety; crosslinking; disulfide bonds; nanomedicine; nanoparticles; polymerization; polymers; polypeptides; therapeutics;     Show all 10 Subjects
Abstract:
... Polypeptide-based nanoparticles are one of the promising excipients of nanomedicines due to their excellent biosafety and flexible modification. Among all the types of polypeptide nanoparticles, polycystine (PCys²)-based ones draw increasing attention due to their unique properties. On the one hand, the uniformed nanogels can be easily obtained through the crosslinking of two active centers during ...
DOI:
10.1039/d2tb00581f

16. Synthesis of Anionic Nanogels for Selective and Efficient Enzyme Encapsulation

Author:
Jiaying Ni; Yuting Wan; Ying Cai; Peng Ding; Martien A. Cohen Stuart; Junyou Wang
Source:
Langmuir 2022 v.38 no.10 pp. 3234-3243
ISSN:
1520-5827
Subject:
nanogels,   etc   ; composite polymers; crosslinking; electrolytes; encapsulation; lysozyme; pH; polymerization; salt concentration;     Show all 9 Subjects
Abstract:
... Polyelectrolyte nanogels containing cross-linked ionic polymer networks feature both soft environment and intrinsic charges which are of great potential for enzyme encapsulation. In this work, well-defined poly(acrylic acid) (PAA) nanogels have been synthesized based on a facile strategy, namely, electrostatic assembly directed polymerization (EADP). Specifically, AA monomers are polymerized toget ...
DOI:
10.1021/acs.langmuir.1c03325

17. Comparing pH-responsive nanogel swelling in dispersion and inside a polyacrylamide gel using photoluminescence spectroscopy and small-angle neutron scattering

Author:
Mingning Zhu; Dongdong Lu; Amir H. Milani; Najet Mahmoudi; Stephen M. King; Brian R. Saunders
Source:
Journal of colloid and interface science 2022 v.608 pp. 378-385
ISSN:
0021-9797
Subject:
nanogels,   etc   ; drugs; energy transfer; fluorescence; hydrogels; neutrons; pH; photoluminescence; polyacrylamide; spectroscopy;     Show all 10 Subjects
Abstract:
... Nanosized probes that report their changes in dimensions within networks in response to environmental stimuli are potentially important for applications such as drug delivery, load-supporting hydrogels and soft robotics. Recently, we developed a fluorescent pH-responsive nanogel (NG) that used Förster-resonance energy transfer (FRET) to report changes in the probe separation and NG swelling within ...
DOI:
10.1016/j.jcis.2021.09.163

18. Self-assembled polysaccharide nanogel delivery system for overcoming tumor immune resistance

Author:
Daisuke Muraoka; Naozumi Harada; Hiroshi Shiku; Kazunari Akiyoshi
Source:
Journal of controlled release 2022 v.347 pp. 175-182
ISSN:
0168-3659
Subject:
nanogels,   etc   ; antigens; cancer vaccines; immune response; immunotherapy; lymph; macrophages; neoplasms; pullulan; spleen;     Show all 10 Subjects
Abstract:
... In therapeutic cancer vaccines, vaccine antigens must be efficiently delivered to the antigen-presenting cells (dendritic cells and macrophages) located in the lymphoid organs (lymph nodes and spleen) at the appropriate time to induce a potent antitumor immune response. Nanoparticle-based delivery systems in cancer immunotherapy are of great interest in recent year. We have developed a novel cance ...
DOI:
10.1016/j.jconrel.2022.05.004

19. Desalted duck egg white nanogels combined with κ‐carrageenan as stabilisers for food‐grade Pickering emulsion

Author:
Jingyun Zhao; Yalei Dai; Jin Gao; Qianchun Deng; Chuyun Wan; Bin Li; Bin Zhou
Source:
International journal of food science & technology 2022 v.57 no.5 pp. 2819-2829
ISSN:
0950-5423
Subject:
nanogels,   etc   ; centrifugation; dietary supplements; drugs; duck eggs; egg albumen; emulsions; encapsulation; food science; viscosity;     Show all 10 Subjects
Abstract:
... There was an extensive interest in food‐grade Pickering emulsions formulated by natural stabilisers owing to the gradual growing demand for pursuing green‐label products. Based on this, the desalted duck egg white nanogels (DEWN) combined with κ‐carrageenan (CAR) (CAR/DEWN) were used as stabilisers to prepare environment‐friendly Pickering emulsions. The DEWN and CAR/DEWN as well as the particles‐ ...
DOI:
10.1111/ijfs.15400

20. Food biopolymers-derived nanogels for encapsulation and delivery of biologically active compounds: A perspective review

Author:
Magner Pessoa Silva; João Paulo Fabi
Source:
Food hydrocolloids for health 2022 v.2 pp. 100079
ISSN:
2667-0259
Subject:
nanogels,   etc   ; bioavailability; dietary supplements; drugs; encapsulation; hydrocolloids; hydrophilicity; hydrophobicity; micelles; polysaccharides; water solubility;     Show all 11 Subjects
Abstract:
... Nanotechnology is an emerging field in the food and pharmaceutical industries since it can fabricate various delivery systems for the encapsulation, protection, and controlled release of many different drugs, nutraceuticals, and bioactive compounds. The use of materials in the nanoscale (10⁻⁹ m) may display distinct physicochemical and biological properties to overcome problems associated with poo ...
DOI:
10.1016/j.fhfh.2022.100079