Article
Polymer Science
Thiago Schroeder da Silva, Denise Abatti Kasper Silva, Andre Lourenco Nogueira
Summary: This study aimed to develop a MetHCl sustained release biopolymeric system to minimize the issues caused by the drug's high hydrophilicity. The results showed that the increase in CMC concentration was positively correlated with emulsion stability and encapsulation efficiency. DSC findings indicated that the choice of the first emulsifier influenced the crystallinity of the polymer particles, which in turn affected the drug release behavior. In vitro studies demonstrated that the encapsulation of MetHCl in PLLA-CMC microparticles is a promising sustained release system compatible with a zero-order kinetic mechanism.
JOURNAL OF APPLIED POLYMER SCIENCE
(2021)
Article
Polymer Science
Haradhan Kolya, Eun-Suk Jang, Kazuharu Hashitsume, Chun-Won Kang
Summary: This article focuses on the rational design of sound absorption boards made of wood materials, specifically coconut wood cell walls. A simple and low-cost ammonium persulfate treatment was applied to enhance the sound absorption properties of the wood. The study found significant changes in the wood cell walls, resulting in improved sound absorption coefficients across different frequency ranges. These findings have implications for the development of wood-based sound absorption materials to regulate the acoustic environment in houses.
JOURNAL OF APPLIED POLYMER SCIENCE
(2022)
Article
Polymer Science
Ozi Adi Saputra, Fiqri Apriansyah, Melani Puji Puspitasari, Syifa Hanifah, Agung Prakoso, Fajar Rakhman Wibowo
Summary: This study successfully improved the loading efficiency and controlled release behavior of quercetin by loading it onto magnetically porous cellulose functionalized with amine-based alkoxysilane. Surface modification of PC enhanced the quercetin loading efficiency and controlled its release behavior, leading to improved antioxidant activity of quercetin. The strategy of loading quercetin within MPC-NH2 proved to be effective in enhancing loading capacity, drug-release ability, and antioxidant activity.
JOURNAL OF APPLIED POLYMER SCIENCE
(2022)
Article
Polymer Science
Mercedes Jimenez-Rosado, Jean-Eudes Maigret, Denis Lourdin, Antonio Guerrero, Alberto Romero
Summary: The study aimed to develop soy protein-based bioplastics with zinc sulfate by extrusion and compare with injection molding. Results showed that glycerol can improve the mechanical strength of bioplastics but lead to faster zinc release. Processing parameters can be adjusted to achieve better mechanical strength and slower zinc release.
JOURNAL OF APPLIED POLYMER SCIENCE
(2022)
Article
Polymer Science
Yan Mi, Yumei Bai, Daqian Gao, Zhenhua Gao, Hao Gu, Weijun Yang
Summary: This study developed a controllable crosslinking system of soy protein-based adhesives by adjusting the soybean polysaccharide contents. The results showed that increasing the polysaccharide content can reduce the water-insoluble contents and improve the thermal stability of the adhesives. Additionally, polysaccharide can be used as an additive to reduce viscosity and improve spread property and mechanical interlock with plywood. The resultant plywood met the requirement of outdoor use with soaked wet bond strength of 1.58 MPa and cycled wet bond strength of 1.17 MPa at 40% polysaccharide content.
JOURNAL OF APPLIED POLYMER SCIENCE
(2022)
Article
Polymer Science
Mirella Romanelli Vicente Bertolo, Virginia da Conceicao Amaro Martins, Ana Maria de Guzzi Plepis, Stanislau Bogusz Junior
Summary: This study evaluates the effects of grape seed extract incorporation, addition order, and concentration in chitosan and gelatin solutions on rheological parameters. The addition order has a direct influence on rheological properties, and low extract concentrations result in solutions suitable for coating applications. Standardizing the addition procedures during material preparation is essential based on the findings of this study.
JOURNAL OF APPLIED POLYMER SCIENCE
(2021)
Review
Chemistry, Multidisciplinary
Sepehr Talebian, Barbara Mendes, Joao Conniot, Syamak Farajikhah, Fariba Dehghani, Zhongyan Li, Diogo Bitoque, Gabriela Silva, Sina Naficy, Joao Conde, Gordon G. Wallace
Summary: The deployment of localized release structures for bioactive molecules can enhance disease treatment and integration of implantable bionic devices. The strategic design of biopolymeric coatings allows for optimal release profiles depending on the task. This review focuses on drug delivery advancements in bone, brain, ocular, and cardiovascular implants to highlight the benefits of controlled localized delivery in both hard and soft tissue implants.
Review
Polymer Science
Veino Risto Shaumbwa, Dagang Liu, Bright Archer, Jinlei Li, Fan Su
Summary: Magnetic chitosan has garnered attention for its low cost, biodegradability, green sources, and magnetic intensity. It is used in wastewater treatment, medicine, pharmaceuticals, and electronics due to its potential applications and ease of modification and control with an external magnetic field.
JOURNAL OF APPLIED POLYMER SCIENCE
(2021)
Article
Polymer Science
Aline Luiza M. Carlos, Javier Mauricio A. Mancipe, Marcos L. Dias, Rossana M. S. M. Thire
Summary: Electrospinning is commonly used for micro- and nanofibers production, while solution blow spinning (SBS) provides a safer alternative for certain applications. In this study, core-shell fibers were produced using SBS with PHBV showing better morphology and stability. The core-shell structure allows for sustained release of bioactive agents, and rotating collectors can produce smaller diameter fibers effectively.
JOURNAL OF APPLIED POLYMER SCIENCE
(2022)
Article
Polymer Science
Mengting Li, Changgui Li, You Zhou, Hua Tian, Qiaoyuan Deng, Haifang Liu, Li Zhu, Xueqiong Yin
Summary: The study investigated different microcapsule wall systems to improve the stability of cinnamaldehyde (CAL) and found that the MC/CMC/SA wall formulation is more suitable for CAL microencapsulation. A novel quantitative method was proposed to verify the most stable wall material microencapsulation, with the results showing the highest activation energy for the MC/CMC/SA-encapsulated CAL microcapsule. This study will be helpful in designing an ideal capsule for CAL microencapsulation.
JOURNAL OF APPLIED POLYMER SCIENCE
(2021)
Article
Polymer Science
Leticia A. Silva, Roberta Dambros, Gislaine R. Leonardi, Fabiana Perrechil
Summary: This study explored the potential of complex coacervation technique to encapsulate and protect all-trans retinoic acid (RA). By adjusting the protein: polysaccharide ratio and pH, three formulations were defined to produce microparticles, with one formulation showing optimal yield, encapsulation efficiency, and stability. The results demonstrate the high potential of this innovative technique for future applications in topical formulations.
JOURNAL OF APPLIED POLYMER SCIENCE
(2021)
Article
Polymer Science
Amala Muniandy, Choy Sin Lee, Wen Huei Lim, Mallikarjuna Rao Pichika, Kit Kay Mak
Summary: Hyperbranched poly(glycerol esteramide) (HPGEA) with biodegradable, biocompatible, and solubility enhancing properties is highly promising in drug delivery systems. Compared to commercial polymers, HPGEA exhibits lower enthalpy of fusion, making it a potential drug carrier for solid dispersion (SD) to enhance drug solubility and release rate. The safety of HPGEA and HPGEA-based SDs was confirmed through MTT assay, with IC(50) values indicating their cytotoxicity levels.
JOURNAL OF APPLIED POLYMER SCIENCE
(2021)
Article
Polymer Science
Chander Amgoth, Gangappa Dharmapuri, Sukanya Patra, Kirti Wasnik, Premshankar Gupta, Arunasree M. Kalle, Pradip Paik
Summary: The synthesis and utilization of plate-like-coral shaped polymer capsule (PC-PLCDB) with dendritic network structure and porous channels for therapeutic purposes has been achieved. The loading of anticancer drug doxorubicin (DOX) in PC-PLCDB showed promising results in inhibiting chronic myeloid leukemia cells (K562) growth, indicating potential applications in therapeutic treatments.
JOURNAL OF APPLIED POLYMER SCIENCE
(2021)
Article
Polymer Science
Giovanna Poggi, Alessandra Papacchini, Sara Baracani, Alice Cappitti, Gioia Marini, Matteo Marrini, Rodorico Giorgi, Antonella Salvini
Summary: The acid-catalyzed hydrolysis of glycosidic bonds is the primary degradation mechanism affecting cellulose-based materials, which can be reduced through neutralization of acidity. In addition to deacidification, a consolidation treatment is necessary for severely degraded artifacts. The use of saccharide derivatives as monomers improves the affinity and compatibility of the biopolymer with the artifacts to be treated.
JOURNAL OF APPLIED POLYMER SCIENCE
(2022)
Review
Polymer Science
Zina Jawadi, Christine Yang, Ziyad S. S. Haidar, Peter L. Santa L. Maria, Solange Massa
Summary: Muco-adhesive drug delivery systems are extensively studied for controlled pharmacokinetics and pharmacodynamics. These systems utilize muco-adhesive polymers to prolong drug residency time at the application site and improve drug delivery. Compared to traditional drug delivery systems, muco-adhesive carriers have the potential to enhance therapeutic performance and efficacy. However, achieving successful muco-adhesion involves considering various physico-chemico-mechanical parameters.
Article
Agriculture, Multidisciplinary
Francisco Flores-Cespedes, Gerardo P. Martinez-Dominguez, Matilde Villafranca-Sanchez, Manuel Fernandez-Perez
JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY
(2015)
Article
Chemistry, Applied
M. Fernandez-Perez, M. Villafranca-Sanchez, F. Flores-Cespedes, I. Daza-Fernandez
CARBOHYDRATE POLYMERS
(2011)
Article
Environmental Sciences
F. Flores Cespedes, S. Perez Garcia, M. Villafranca Sanchez, M. Fernandez Perez
Article
Engineering, Chemical
Manuel Fernandez-Perez, Francisco Flores-Cespedes, Isabel Daza-Fernandez, Fernando Vidal-Pena, Matilde Villafranca-Sanchez
INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
(2014)
Article
Agriculture, Multidisciplinary
Francisco Flores-Cespedes, Cristina Isabel Figueredo-Flores, Isabel Daza-Fernandez, Fernando Vidal-Pena, Matilde Villafranca-Sanchez, Manuel Fernandez-Perez
JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY
(2012)
Article
Polymer Science
Francisco Flores-Cespedes, Matilde Villafranca-Sanchez, Manuel Fernandez-Perez
Summary: The effect of adding bentonite and encapsulation efficiency on the release rate of insect sex pheromone Dodecyl acetate (DDA) in alginate-based granules was studied. The encapsulation efficiency of DDA increased with the increase of alginate/bentonite ratio. The selected alginate-bentonite formulation (DDAB(75)A(10)) exhibited a prolonged DDA release profile, and the release process followed a non-Fickian or anomalous transport mechanism.
