1
|
Muacevic A, Adler JR. Biomaterials for Treatment of Baldness. Cureus 2022; 14:e31187. [PMID: 36505112 PMCID: PMC9727726 DOI: 10.7759/cureus.31187] [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: 08/05/2022] [Accepted: 11/07/2022] [Indexed: 11/09/2022] Open
Abstract
Androgenic alopecia affects men and women today, where many factors can be the unknown cause of it. It is essential to find a good, effective, and inexpensive treatment for it, as it is a prevalent dermatological condition. Many drugs like minoxidil (MXD) and finasteride (FNS) are commercially used for its treatment but we are still lacking in terms of a complete cure for alopecia. In this study, we came up with different treatment options for alopecia and assessed their advantages and disadvantages. Not only is the treatment part is essential, but the mode of drug delivery is equally important when it comes to hair and its growth for the maximum output. The following discussion considers the idea of nanoparticles (NPs) loaded with drugs and biomaterials used for the treatment of alopecia.
Collapse
|
2
|
Aghamiri S, Noofeli M, Saffarian P, Salehi Najafabadi Z, Goudarzi HR. Investigating preparation and characterisation of diphtheria toxoid-loaded on sodium alginate nanoparticles. IET Nanobiotechnol 2022; 16:199-209. [PMID: 35610737 PMCID: PMC9178656 DOI: 10.1049/nbt2.12088] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2022] [Revised: 03/18/2022] [Accepted: 05/05/2022] [Indexed: 11/30/2022] Open
Abstract
This paper aims to investigate the preparation and characterisation of the alginate nanoparticles (NPs) as antigen delivery system loaded by diphtheria toxoid (DT). For this purpose, both the loading capacity (LC) and Loading efficiency (LE) of the alginate NPs burdened by DT are evaluated. Moreover, the effects of different concentrations of sodium alginate and calcium chloride on the NPs physicochemical characteristics are surveyed in addition to other physical conditions such as homogenization time and rate. To do so, the NPs are characterised using particle size and distribution, zeta potential, scanning electron microscopy, encapsulation efficiency, in vitro release study and FT‐IR spectroscopy. Subsequently, the effects of homogenization time and rate on the NPs are assessed. At the meantime, the NPs LC and efficiency in several DT concentrations are estimated. The average size of the NPs was 400.7 and 276.6 nm for unloaded and DT loaded, respectively. According to the obtained results, the zeta potential of the blank and DT loaded NPs are estimated as −23.7 mV and −21.2 mV, respectively. Whereas, the LC and LE were >80% and >90%, in that order. Furthermore, 95% of the releasing DT loaded NPs occurs at 140 h in the sustained mode without any bursting release. It can be concluded that the features of NPs such as morphology and particle size are strongly depended on the calcium chloride, sodium alginate concentrations and physicochemical conditions in the NPs formation process. In addition, appropriate concentrations of the sodium alginate and calcium ions would lead to obtaining the desirable NPs formation associated with the advantageous LE, LC (over 80%) and sustained in vitro release profile. Ultimately, the proposed NPs can be employed in vaccine formulation for the targeted delivery, controlled and slow antigen release associated with the improved antigen stability.
Collapse
Affiliation(s)
- Samira Aghamiri
- Department of Biology, Science and Research Branch, Islamic Azad University, Tehran, Iran
| | - Mojtaba Noofeli
- Department of Research and Development, Razi Vaccine and Serum Research Institute, Agriculture Research Education and Extension Organization (AREEO), Karaj, Iran
| | - Parvaneh Saffarian
- Department of Biology, Science and Research Branch, Islamic Azad University, Tehran, Iran
| | - Zahra Salehi Najafabadi
- Department of Human Bacterial Vaccine, Razi Vaccine and Serum Research Institute, Agriculture Research Education and Extension Organization (AREEO), Karaj, Iran
| | - Hamid Reza Goudarzi
- Department of Research and Development, Razi Vaccine and Serum Research Institute, Agriculture Research Education and Extension Organization (AREEO), Karaj, Iran
| |
Collapse
|
3
|
Kim JH, Ryu CH, Chon CH, Kim S, Lee S, Maharjan R, Kim NA, Jeong SH. Three months extended-release microspheres prepared by multi-microchannel microfluidics in beagle dog models. Int J Pharm 2021; 608:121039. [PMID: 34450228 DOI: 10.1016/j.ijpharm.2021.121039] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2021] [Revised: 08/19/2021] [Accepted: 08/22/2021] [Indexed: 02/06/2023]
Abstract
To evaluate in vivo drug release profiles in beagle dogs, finasteride-loaded PLGA microspheres were prepared using a novel method of IVL-PPF Microsphere® microfluidic device. Briefly, the dispersed phase (PLGA and finasteride in dichloromethane) was mixed with the continuous phase (0.25% w/v PVA aqueous solution) in the parallelized microchannels. After lyophilization, the diameter of the microspheres was around 40 μm (PLGA 7502A or 5002A) and around 30 µm (PLGA/PLA02A mixture). Their CV and span values suggested a narrow size distribution in repeated batch preparations. The in vivo drug release from the PLGA microspheres exhibited three substantial phases: an initial burst, a moderate release, and then a plateau. The microspheres based on PLGA 7502A (75:25 co-polymer) demonstrated extended drug release for around 1 month with a minimized initial burst release compared to PLGA 5002A (50:50 co-polymer). Moreover, the in vivo drug release profile in beagle dogs was proportionally related to the amount of drug loading. Furthermore, the addition of PLA02A into the fabrication of the microsphere synergistically extended the drug release up to 3 months. These results demonstrated the value of this method to achieve uniform microspheres and extend the drug release properties with interpretative in vivo PK profiles.
Collapse
Affiliation(s)
- Ju Hee Kim
- Inventage Lab Inc, Seongnam, Gyeonggi 13438, Republic of Korea.
| | - Choong Ho Ryu
- Inventage Lab Inc, Seongnam, Gyeonggi 13438, Republic of Korea.
| | - Chan Hee Chon
- Inventage Lab Inc, Seongnam, Gyeonggi 13438, Republic of Korea.
| | - Seyeon Kim
- Inventage Lab Inc, Seongnam, Gyeonggi 13438, Republic of Korea.
| | - Sangno Lee
- Inventage Lab Inc, Seongnam, Gyeonggi 13438, Republic of Korea.
| | - Ravi Maharjan
- BK21 FOUR Team and Integrated Research Institute for Drug Development, College of Pharmacy, Dongguk University, Gyeonggi 10326, Republic of Korea.
| | - Nam Ah Kim
- BK21 FOUR Team and Integrated Research Institute for Drug Development, College of Pharmacy, Dongguk University, Gyeonggi 10326, Republic of Korea.
| | - Seong Hoon Jeong
- BK21 FOUR Team and Integrated Research Institute for Drug Development, College of Pharmacy, Dongguk University, Gyeonggi 10326, Republic of Korea.
| |
Collapse
|
4
|
Lima SG, Pinho LA, Sa-Barreto LL, Gelfuso GM, Gratieri T, Cunha-Filho M. Granules of finasteride and cyclodextrin obtained by hot-melt extrusion to target the hair follicles. POWDER TECHNOL 2021. [DOI: 10.1016/j.powtec.2021.06.027] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
|
5
|
Arafat M, Sarfraz M, Bostanudin MF, Esmaeil A, Salam A, AbuRuz S. In Vitro and In Vivo Evaluation of Oral Controlled Release Formulation of BCS Class I Drug Using Polymer Matrix System. Pharmaceuticals (Basel) 2021; 14:929. [PMID: 34577629 PMCID: PMC8470007 DOI: 10.3390/ph14090929] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2021] [Revised: 09/10/2021] [Accepted: 09/10/2021] [Indexed: 12/15/2022] Open
Abstract
Diltiazem hydrochloride is a calcium channel blocker, which belongs to the family of benzothiazepines. It is commonly used to treat hypertension and atrial fibrillation. Even though the drug has high solubility, its high permeability and rapid metabolism in the liver can limit the bioavailability and increase the dose frequencies for up to four times per day. This study focused on a polymer matrix system not only to control the drug release but also to prolong the duration of bioavailability. The polymer matrices were prepared using different ratios of poloxamer-188, hydroxypropyl methylcellulose, and stearyl alcohol. In vitro and in vivo assessments took place using 24 rabbits and the results were compared to commercially available product Tildiem® (60 mg tablet) as reference. Overall, the rate of drug release was sustained with the gradual increase of poloxamer-188 incorporated with hydroxypropyl methylcellulose and stearyl alcohol in the matrix system, achieving a maximum release period of 10 h. The oral bioavailability and pharmacokinetic parameters of diltiazem hydrochloride incorporated in polymer matrix system were similar to commercial reference Tildiem®. In conclusion, the combination of polymers can have a substantial effect on controlling and prolonging the drug release pattern. The outcomes showed that poloxamer-188 combined with hydroxypropyl methylcellulose and stearyl alcohol is a powerful matrix system for controlling release of diltiazem hydrochloride.
Collapse
Affiliation(s)
- Mosab Arafat
- College of Pharmacy, Al Ain University, Al Ain P.O. Box 64141, United Arab Emirates; (M.A.); (M.S.); (M.F.B.); (A.E.); (A.S.)
| | - Muhammad Sarfraz
- College of Pharmacy, Al Ain University, Al Ain P.O. Box 64141, United Arab Emirates; (M.A.); (M.S.); (M.F.B.); (A.E.); (A.S.)
| | - Mohammad F. Bostanudin
- College of Pharmacy, Al Ain University, Al Ain P.O. Box 64141, United Arab Emirates; (M.A.); (M.S.); (M.F.B.); (A.E.); (A.S.)
| | - Anna Esmaeil
- College of Pharmacy, Al Ain University, Al Ain P.O. Box 64141, United Arab Emirates; (M.A.); (M.S.); (M.F.B.); (A.E.); (A.S.)
| | - Aisha Salam
- College of Pharmacy, Al Ain University, Al Ain P.O. Box 64141, United Arab Emirates; (M.A.); (M.S.); (M.F.B.); (A.E.); (A.S.)
| | - Salahdein AbuRuz
- Department of Pharmacology and Therapeutics, College of Medicine and Health Sciences, United Arab Emirates University, Al Ain P.O. Box 17666, United Arab Emirates
- Department of Biopharmaceutics and Clinical Pharmacy, School of Pharmacy, The University of Jordan, Amman 11942, Jordan
| |
Collapse
|
6
|
Pereira MN, Tolentino S, Pires FQ, Anjos JL, Alonso A, Gratieri T, Cunha-Filho M, Gelfuso GM. Nanostructured lipid carriers for hair follicle-targeted delivery of clindamycin and rifampicin to hidradenitis suppurativa treatment. Colloids Surf B Biointerfaces 2021; 197:111448. [DOI: 10.1016/j.colsurfb.2020.111448] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2020] [Revised: 10/22/2020] [Accepted: 10/31/2020] [Indexed: 01/30/2023]
|
7
|
Abstract
Alopecia is the partial or total reduction of hair in a specific area of the skin that affects millions of men and women worldwide. Most common approved treatments present inconvenient therapeutic regimes and serious adverse effects. In this scenario, nanoencapsulation has emerged as a relatively simple technology for improving the therapeutic outcome of this pathology, promoting a targeted drug delivery with enhanced local bioavailability, which could reduce the adverse effects. Herein, we present some recent studies involving the nanosystems developed for the pharmacological treatment of alopecia, highlighting how each system represents an improvement in relation to conventional drug products and the future perspectives of these new technologies in reaching the market.
Collapse
|
8
|
Kim JH, Na J, Bak DH, Lee BC, Lee E, Choi MJ, Ryu CH, Lee S, Mun SK, Park BC, Kim BJ, Lee HS. Development of finasteride polymer microspheres for systemic application in androgenic alopecia. Int J Mol Med 2019; 43:2409-2419. [PMID: 30942390 PMCID: PMC6488187 DOI: 10.3892/ijmm.2019.4149] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2018] [Accepted: 03/27/2019] [Indexed: 11/06/2022] Open
Abstract
The use of finasteride for alleviating hair loss has been investigated, and it has been applied as an oral dose medication. However, due to the inconvenience of daily drug administration over long period of time, novel controllable finasteride delivery has been actively investigated. As a novel method of finasteride delivery, the development of finasteride‑loaded microspheres for subcutaneous administration is becoming increasingly pharmaceutically important. Therefore, the present study aimed to use finasteride‑loaded microspheres in a controlled manner in an attempt to overcome the limitations of the oral administration of finasteride and to cause fewer adverse effects. Finasteride‑loaded microspheres containing poly(lactic‑co‑glycolic acid) and finasteride at a ratio of 4:1 were prepared, and a testosterone‑induced androgenic alopecia mouse model was used. Following observation for 10 weeks, the percentage hair growth was 86.7% (total hair growth 60%, partial hair growth 26.7%) in the orally‑applied finasteride‑treated group as a positive control, and 93.3% (total hair growth 60%, partial hair growth 33.3%) in the finasteride‑loaded microspheres‑treated group. Serum dihydrotestosterone levels began to decrease at week 6 in the orally‑applied finasteride‑ and finasteride‑loaded microsphere‑treated groups. In addition, the finasteride‑loaded microspheres‑treated group exhibited similar follicular number, follicular length, anagen/telogen ratio and hair bulb diameter values to those of the orally‑applied finasteride‑treated group. Furthermore, the finasteride‑loaded microspheres increased the activities of phosphoinositide 3‑kinase/protein kinase B and Wnt/β‑catenin in relation to hair follicle cell growth signaling in mouse skin, and suppressed the apoptosis of hair follicle cells by reducing the expression of transforming growth factor‑β2 and caspase‑3, which are indicators of apoptosis. In conclusion, the administration of a single injection of finasteride‑loaded microspheres was effective in treating testosterone‑induced alopecia. Furthermore, it led to equivalent hair growth effects when compared with orally‑applied finasteride, thus revealing the possibility of effective treatment via different routes of administration.
Collapse
Affiliation(s)
- Ju Hee Kim
- KNU‑Center for Nonlinear Dynamics, CMRI, School of Life Sciences, BK21 Plus KNU Creative BioResearch Group, College of Natural Science Kyungpook National University, Daegu 41566, Republic of Korea
| | - Jungtae Na
- Department of Dermatology, College of Medicine, Chung‑Ang University, Seoul 06973, Republic of Korea
| | - Dong-Ho Bak
- Department of Dermatology, College of Medicine, Chung‑Ang University, Seoul 06973, Republic of Korea
| | - Byung Chul Lee
- Department of Dermatology, College of Medicine, Chung‑Ang University, Seoul 06973, Republic of Korea
| | - Esther Lee
- Department of Dermatology, College of Medicine, Chung‑Ang University, Seoul 06973, Republic of Korea
| | - Mi Ji Choi
- Department of Dermatology, College of Medicine, Chung‑Ang University, Seoul 06973, Republic of Korea
| | - Choong Ho Ryu
- Headquarter, Inventage Lab, Inc., Seongnam, Gyeonggi 13403, Republic of Korea
| | - Sangno Lee
- Headquarter, Inventage Lab, Inc., Seongnam, Gyeonggi 13403, Republic of Korea
| | - Seog-Kyun Mun
- Department of Otorhinolaryngology‑Head and Neck Surgery, College of Medicine, Chung‑Ang University, Seoul 06973, Republic of Korea
| | - Byung Cheol Park
- Department of Dermatology, Dankook Medical College, Cheonan, Chungcheongnam 31116, Republic of Korea
| | - Beom Joon Kim
- Department of Dermatology, College of Medicine, Chung‑Ang University, Seoul 06973, Republic of Korea
| | - Hyun-Shik Lee
- KNU‑Center for Nonlinear Dynamics, CMRI, School of Life Sciences, BK21 Plus KNU Creative BioResearch Group, College of Natural Science Kyungpook National University, Daegu 41566, Republic of Korea
| |
Collapse
|
9
|
Kaushik AC, Kumar A, Yu CY, Kuo SW, Liang SS, Singh SP, Wang X, Wang YJ, Yen CK, Dai X, Wei DQ, Pan CT, Shiue YL. PCL–DOX microdroplets: an evaluation of the enhanced intracellular delivery of doxorubicin in metastatic cancer cells via in silico and in vitro approaches. NEW J CHEM 2019. [DOI: 10.1039/c9nj01902b] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
A schematic diagram of HCC & TACE; injections of HepaSphere with DOX are made into the femoral artery, abdominal aorta, and hepatic artery to make the tumor shrink to a resectable size due to a shortage of nutrients and drug treatment.
Collapse
|
10
|
Formulation and in-vitro evaluation of pantoprazole loaded pH-sensitive polymeric nanoparticles. FUTURE JOURNAL OF PHARMACEUTICAL SCIENCES 2017. [DOI: 10.1016/j.fjps.2017.04.004] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022] Open
|
11
|
El-Houssiny AS, Ward AA, Mostafa DM, Abd-El-Messieh SL, Abdel-Nour KN, Darwish MM, Khalil WA. Sodium alginate nanoparticles as a new transdermal vehicle of glucosamine sulfate for treatment of osteoarthritis. EUROPEAN JOURNAL OF NANOMEDICINE 2017. [DOI: 10.1515/ejnm-2017-0008] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
AbstractGlucosamine sulfate (GS) has been used orally for the treatment of osteoarthritis (OA). However, it may be susceptible to the liver first pass phenomenon, which greatly affects its bioavailability, in addition to its side effects on the gastrointestinal tract. Alginate nanoparticles (Alg NPs) were investigated as a new drug carrier for transdermal delivery of GS to improve its effectiveness and reduce side effects. GS-Alg NPs were characterized by encapsulation efficiency, NP yield, particle size and surface charge properties. The in vitro release studies of GS and the ex vivo permeability through rat skin were determined using a UV-Vis spectrophotometer. GS-Alg NPs are within the nanometer range of size. High negative surface charge values are obtained and indicate the high suspension stability of the prepared formulation. The in vitro release studies showed that GS is released from Alg NPs in a sustained and prolonged manner. The ex vivo permeability of GS through rat skin is enhanced significantly after encapsulation in the negatively charged Alg NPs. We successfully reported a highly stable nanoparticlulate system using Alg NPs that permits the encapsulation of GS for topical administration, overcoming the disadvantages of oral administration.
Collapse
|
12
|
Roque LV, Dias IS, Cruz N, Rebelo A, Roberto A, Rijo P, Reis CP. Design of Finasteride-Loaded Nanoparticles for Potential Treatment of Alopecia. Skin Pharmacol Physiol 2017; 30:197-204. [DOI: 10.1159/000475473] [Citation(s) in RCA: 41] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2016] [Accepted: 04/03/2017] [Indexed: 11/19/2022]
|
13
|
Jana U, Mohanty AK, Manna PK, Mohanta GP. Preparation and characterization of nebivolol nanoparticles using Eudragit® RS100. Colloids Surf B Biointerfaces 2014; 113:269-75. [DOI: 10.1016/j.colsurfb.2013.09.001] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2013] [Revised: 08/17/2013] [Accepted: 09/02/2013] [Indexed: 11/25/2022]
|
14
|
Abstract
Plants contain enriched bioactive molecules that can protect against skin diseases. Bioactive molecules become unstable and ineffective due to unfavorable conditions. In the present study, to improve the therapeutic efficacy of phytodrugs and enhance photoprotective capability, we used poly(D,L-lactide-co-glycolide) as a carrier of apple peel ethanolic extract (APETE) on permeation-enhanced nanoparticles (nano-APETE). The in vitro toxicity of nano-APETE-treated dermal fibroblast cells were studied in a bioimpedance system, and the results coincided with the viability assay. In addition, the continuous real-time evaluations of photodamage and photoprotective effect of nano-APETE on cells were studied. Among three different preparations of nano-APETE, the lowest concentration provided small, spherical, monodispersed, uniform particles which show high encapsulation, enhanced uptake, effective scavenging, and sustained intracellular delivery. Also, the nano-APETE is more flexible, allowing it to permeate through skin lipid membrane and release the drug in a sustained manner, thus confirming its ability as a sustained transdermal delivery. In summary, 50 μM nano-APETE shows strong synergistic photoprotective effects, thus demonstrating its higher activity on target sites for the treatment of skin damage, and would be of broad interest in the field of skin therapeutics.
Collapse
Affiliation(s)
- Devasier Bennet
- Department of Bionanotechnology, Bokjeong-Dong, Sujeong-Gu, Seongnam-Si, Gyeonggi-Do, Republic of Korea
| | - Se Chan Kang
- Department of Life Science, Bokjeong-Dong, Sujeong-Gu, Seongnam-Si, Gyeonggi-Do, Republic of Korea
| | - Jongback Gang
- Department of Nano Chemistry, Gachon University, Bokjeong-Dong, Sujeong-Gu, Seongnam-Si, Gyeonggi-Do, Republic of Korea
| | - Sanghyo Kim
- Department of Bionanotechnology, Bokjeong-Dong, Sujeong-Gu, Seongnam-Si, Gyeonggi-Do, Republic of Korea ; Graduate Gachon Medical Research Institute, Gil Medical Center, Inchon, Republic of Korea
| |
Collapse
|
15
|
Zhang SF, Chen PH, Zhang F, Yang YF, Liu DK, Wu G. Preparation and physicochemical characteristics of polylactide microspheres of emamectin benzoate by modified solvent evaporation/extraction method. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2013; 61:12219-12225. [PMID: 24283703 DOI: 10.1021/jf403722q] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
Emamectin benzoate is highly effective against insect pests and widely used in the world. However, its biological activity is limited because of high resistance of target insects and rapid degradation speed in fields. Preparation and physicochemical characterization of degradable microcapsules of emamectin benzoate were studied by modified solvent evaporation/extraction method using polylactide (PLA) as wall material. The influence of different compositions of the solvent in internal organic phase and external aqueous phase on diameter, span, pesticide loading, and entrapment rate of the microspheres was investigated. The results indicated that the process of solvent extraction and the formation of the microcapsules would be accelerated by adding water-miscible organic solvents such as ethyl ether, acetone, ethyl acetate, or n-butanol into internal organic phase and external aqueous phase. Accelerated formation of the microcapsules would result in entrapment rates of emamectin benzoate increased to as high as 97%. In addition, by adding ethanol into the external aqueous phase, diameters would reduce to 6.28 μm, whereas the loading efficiency of emamectin benzoate did not increase. The PLA microspheres prepared under optimum conditions were smoother and more spherical. The degradation rate in PLA microspheres of emamectin benzoate on the 10th day was 4.29 ± 0.74%, whereas the degradation rates of emamectin benzoate in methanol solution and solid technical material were 46.3 ± 2.11 and 22.7 ± 1.51%, respectively. The PLA skeleton had combined with emamectin benzoate in an amorphous or molecular state by using differential scanning calorimetry (DSC) determination. The results indicated that PLA microspheres of emamectin benzoate with high entrapment rate, loading efficiency, and physicochemical characteristics could be obtained by adding water-miscible organic solvents into the internal organic phase and external aqueous phase.
Collapse
Affiliation(s)
- Shao Fei Zhang
- Key Laboratory of Biopesticide and Chemical Biology (Ministry of Education), Fujian Agriculture and Forestry University , Fuzhou, China 350002
| | | | | | | | | | | |
Collapse
|
16
|
Preparation and characterization of repaglinide loaded ethylcellulose nanoparticles by solvent diffusion technique using high pressure homogenizer. ACTA ACUST UNITED AC 2013. [DOI: 10.1016/j.jopr.2013.04.049] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
|
17
|
Mao S, Guo C, Shi Y, Li LC. Recent advances in polymeric microspheres for parenteral drug delivery – part 1. Expert Opin Drug Deliv 2012; 9:1161-76. [DOI: 10.1517/17425247.2012.709844] [Citation(s) in RCA: 67] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
|
18
|
Liang Y, Xiao L, Zhai Y, Xie C, Deng L, Dong A. Preparation and characterization of biodegradable poly(sebacic anhydride) chain extended by glycol as drug carrier. J Appl Polym Sci 2012. [DOI: 10.1002/app.37708] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
|
19
|
Bennet D, Kim S. A Transdermal Delivery System to Enhance Quercetin Nanoparticle Permeability. JOURNAL OF BIOMATERIALS SCIENCE-POLYMER EDITION 2012; 24:185-209. [DOI: 10.1163/156856212x630258] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- Devasier Bennet
- a Department of Bionanotechnology , Gachon University , San 65, Bokjeong-Dong, Sujeong-Gu, Seongnam-Si, Gyeonggi-Do , 461-701 , South Korea
| | - Sanghyo Kim
- a Department of Bionanotechnology , Gachon University , San 65, Bokjeong-Dong, Sujeong-Gu, Seongnam-Si, Gyeonggi-Do , 461-701 , South Korea
| |
Collapse
|
20
|
Kishore N, Dhanalekshmi UM, Raja MD, Bhavani S, Reddy PN. Design and In Vitro Evaluation of Solid-Lipid Nanoparticle Drug Delivery for Aceclofenac. J DISPER SCI TECHNOL 2012. [DOI: 10.1080/01932691.2010.534293] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/14/2022]
|
21
|
Liu Y, Peng D, Huang K, Liu S, Liu Z. Preparation and properties of poly(propylene carbonate maleate) microcapsules for controlled release of pazufloxacin mesilate. J Appl Polym Sci 2011. [DOI: 10.1002/app.34351] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
|
22
|
DiCiccio AM, Coates GW. Ring-Opening Copolymerization of Maleic Anhydride with Epoxides: A Chain-Growth Approach to Unsaturated Polyesters. J Am Chem Soc 2011; 133:10724-7. [DOI: 10.1021/ja203520p] [Citation(s) in RCA: 209] [Impact Index Per Article: 16.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Affiliation(s)
- Angela M. DiCiccio
- Baker Laboratory, Department of Chemistry and Chemical Biology, Cornell University, Ithaca, New York 14853-1301, United States
| | - Geoffrey W. Coates
- Baker Laboratory, Department of Chemistry and Chemical Biology, Cornell University, Ithaca, New York 14853-1301, United States
| |
Collapse
|
23
|
Poovi G, Dhana leks U, Narayanan N, Neelakanta P. Preparation and Characterization of Repaglinide Loaded Chitosan Polymeric Nanoparticles. ACTA ACUST UNITED AC 2011. [DOI: 10.3923/rjnn.2011.12.24] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
|
24
|
Lee SM, Bae IA, Park JH, Kim TD, Choi SH. Preparation of Affinity Column Based on ZR 4+Ion forPhosphoproteins Isolation. JOURNAL OF THE KOREAN CHEMICAL SOCIETY-DAEHAN HWAHAK HOE JEE 2009. [DOI: 10.5012/jkcs.2009.53.3.279] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
|
25
|
Preparation of polylactide/poly(ε-caprolactone) microspheres enclosing acetamiprid and evaluation of release behavior. Polym Bull (Berl) 2008. [DOI: 10.1007/s00289-008-0957-z] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
|