1
|
Baljit Singh, Kumar S, Rajneesh, Mohan M, Divya. Synthesis and Characterization of Psyllium Polysaccharide–Poly(2-hydroxypropyl methacrylate)−Poly(acrylamide) Hydrogels for Use in Sustained Drug Delivery Applications. POLYMER SCIENCE SERIES B 2020. [DOI: 10.1134/s1560090420330064] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
|
2
|
Siddiqa AJ, Shrivastava NK, Ali Mohsin M, Abidi MH, Shaikh TA, El-Meligy MA. Preparation of letrozole dispersed pHEMA/AAm-g-LDPE drug release system: In-vitro release kinetics for the treatment of endometriosis. Colloids Surf B Biointerfaces 2019; 179:445-452. [DOI: 10.1016/j.colsurfb.2019.04.014] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2019] [Revised: 03/03/2019] [Accepted: 04/06/2019] [Indexed: 12/31/2022]
|
3
|
Sevgili LM, Gök A, Kayman Ü, Çavuş S. Swelling behaviors of poly(dodecyl methacrylate-co-methyl eugenol) and poly(dodecyl methacrylate-co-methyl chavicol) gels in essential oil components. CHEMICAL PAPERS 2017. [DOI: 10.1007/s11696-017-0130-y] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
|
4
|
Sai N, Wu Y, Yu G, Sun Z, Huang G. A novel enrichment imprinted crystalline colloidal array for the ultratrace detection of chloramphenicol. Talanta 2016; 161:1-7. [DOI: 10.1016/j.talanta.2016.08.028] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2016] [Revised: 07/30/2016] [Accepted: 08/06/2016] [Indexed: 11/16/2022]
|
5
|
Singh B, Kumar A. Radiation formation of functionalized polysaccharide-protein based skin mimicking semi- inter penetrating network for biomedical application. Int J Biol Macromol 2016; 92:1136-1150. [DOI: 10.1016/j.ijbiomac.2016.08.011] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2016] [Revised: 08/03/2016] [Accepted: 08/05/2016] [Indexed: 11/17/2022]
|
6
|
Li X, Tsibouklis J, Weng T, Zhang B, Yin G, Feng G, Cui Y, Savina IN, Mikhalovska LI, Sandeman SR, Howel CA, Mikhalovsky SV. Nano carriers for drug transport across the blood-brain barrier. J Drug Target 2016; 25:17-28. [PMID: 27126681 DOI: 10.1080/1061186x.2016.1184272] [Citation(s) in RCA: 147] [Impact Index Per Article: 18.4] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Abstract
Effective therapy lies in achieving a therapeutic amount of drug to the proper site in the body and then maintaining the desired drug concentration for a sufficient time interval to be clinically effective for treatment. The blood-brain barrier (BBB) hinders most drugs from entering the central nervous system (CNS) from the blood stream, leading to the difficulty of delivering drugs to the brain via the circulatory system for the treatment, diagnosis and prevention of brain diseases. Several brain drug delivery approaches have been developed, such as intracerebral and intracerebroventricular administration, intranasal delivery and blood-to-brain delivery, as a result of transient BBB disruption induced by biological, chemical or physical stimuli such as zonula occludens toxin, mannitol, magnetic heating and ultrasound, but these approaches showed disadvantages of being dangerous, high cost and unsuitability for most brain diseases and drugs. The strategy of vector-mediated blood-to-brain delivery, which involves improving BBB permeability of the drug-carrier conjugate, can minimize side effects, such as being submicrometre objects that behave as a whole unit in terms of their transport and properties, nanomaterials, are promising carrier vehicles for direct drug transport across the intact BBB as a result of their potential to enter the brain capillary endothelial cells by means of normal endocytosis and transcytosis due to their small size, as well as their possibility of being functionalized with multiple copies of the drug molecule of interest. This review provids a concise discussion of nano carriers for drug transport across the intact BBB, various forms of nanomaterials including inorganic/solid lipid/polymeric nanoparticles, nanoemulsions, quantum dots, nanogels, liposomes, micelles, dendrimers, polymersomes and exosomes are critically evaluated, their mechanisms for drug transport across the BBB are reviewed, and the future directions of this area are fully discussed.
Collapse
Affiliation(s)
- Xinming Li
- a School of Chemistry and Chemical Engineering , Zhongkai University of Agriculture and Engineering , Guangzhou , PR China.,b School of Pharmacy and Biomedical Sciences , University of Portsmouth , Portsmouth , UK
| | - John Tsibouklis
- b School of Pharmacy and Biomedical Sciences , University of Portsmouth , Portsmouth , UK
| | - Tingting Weng
- c Department of Chemical Engineering , Guangdong Petroleum and Chemical Technology Institute , Foshan , China
| | - Buning Zhang
- a School of Chemistry and Chemical Engineering , Zhongkai University of Agriculture and Engineering , Guangzhou , PR China
| | - Guoqiang Yin
- a School of Chemistry and Chemical Engineering , Zhongkai University of Agriculture and Engineering , Guangzhou , PR China
| | - Guangzhu Feng
- a School of Chemistry and Chemical Engineering , Zhongkai University of Agriculture and Engineering , Guangzhou , PR China
| | - Yingde Cui
- a School of Chemistry and Chemical Engineering , Zhongkai University of Agriculture and Engineering , Guangzhou , PR China
| | - Irina N Savina
- d School of Pharmacy and Biomolecular Science , University of Brighton , Brighton , UK
| | - Lyuba I Mikhalovska
- d School of Pharmacy and Biomolecular Science , University of Brighton , Brighton , UK
| | - Susan R Sandeman
- d School of Pharmacy and Biomolecular Science , University of Brighton , Brighton , UK
| | - Carol A Howel
- d School of Pharmacy and Biomolecular Science , University of Brighton , Brighton , UK
| | - Sergey V Mikhalovsky
- d School of Pharmacy and Biomolecular Science , University of Brighton , Brighton , UK.,e School of Engineering , Nazarbayev Uiversity , Astana , Kazakhstan
| |
Collapse
|
7
|
Li R, Zhang J, Chen J, Teng W, Wang J, Li C. Preparation and Characterization of Biological Non-toxic Hybrid Nanoparticles Based on Lactide and Poly(ethylene glycol) Loading Docetaxel for Anticancer Drug Delivery. Chin J Chem Eng 2014. [DOI: 10.1016/j.cjche.2014.09.012] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
|
9
|
Malana MA, Bukhari JUD, Zohra R. Synthesis, swelling behavior, and network parameters of novel chemically crosslinked poly (acrylamide-co-methacrylate-co-acrylic acid) hydrogels. Des Monomers Polym 2013. [DOI: 10.1080/15685551.2013.840501] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022] Open
Affiliation(s)
| | | | - Rubab Zohra
- Department of Chemistry, Forman Christian College, A Chartered University, Lahore, Pakistan
| |
Collapse
|
10
|
Weng T, Guo J, Li X, Cui Y, Zhang B, Mikhalovsky SV, Sandeman SR, Howel CA, Mikhalovska LI, Savina IN. Synthesis, Chloramphenicol Uptake, and In Vitro Release of Poly(AMPS–TEA-Co-AAm) Gels with Affinity for Both Water and Alcohols. INT J POLYM MATER PO 2013. [DOI: 10.1080/00914037.2013.769250] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
|
11
|
Malana MA, Zohra R. The release behavior and kinetic evaluation of tramadol HCl from chemically cross linked Ter polymeric hydrogels. Daru 2013; 21:10. [PMID: 23351340 PMCID: PMC3584726 DOI: 10.1186/2008-2231-21-10] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2012] [Accepted: 12/13/2012] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND AND THE PURPOSE OF THE STUDY Hydrogels, being stimuli responsive are considered to be effective for targeted and sustained drug delivery. The main purpose for this work was to study the release behavior and kinetic evaluation of Tramadol HCl from chemically cross linked ter polymeric hydrogels. METHODS Ter-polymers of methacrylate, vinyl acetate and acrylic acid cross linked with ethylene glycol dimethacrylate (EGDMA) were prepared by free radical polymerization. The drug release rates, dynamic swelling behavior and pH sensitivity of hydrogels ranging in composition from 1-10 mol% EGDMA were studied. Tramadol HCl was used as model drug substance. The release behavior was investigated at pH 8 where all formulations exhibited non-Fickian diffusion mechanism. RESULTS AND MAJOR CONCLUSION Absorbency was found to be more than 99% indicating good drug loading capability of these hydrogels towards the selected drug substance. Formulations designed with increasing amounts of EGDMA had a decreased equilibrium media content as well as media penetrating velocity and thus exhibited a slower drug release rate. Fitting of release data to different kinetic models indicate that the kinetic order shifts from the first to zero order as the concentration of drug was increased in the medium, showing gradual independency of drug release towards its concentration. Formulations with low drug content showed best fitness with Higuchi model whereas those with higher concentration of drug followed Hixson-Crowell model with better correlation values indicating that the drug release from these formulations depends more on change in surface area and diameter of tablets than that on concentration of the drug. Release exponent (n) derived from Korse-Meyer Peppas equation implied that the release of Tramadol HCl from these formulations was generally non-Fickian (n > 0.5 > 1) showing swelling controlled mechanism. The mechanical strength and controlled release capability of the systems indicate that these co-polymeric hydrogels have a great potential to be used as colon drug delivery device through oral administration.
Collapse
Affiliation(s)
- Muhammad A Malana
- Chemistry Department, Bahauddin Zakarya University, Multan, Pakistan
| | - Rubab Zohra
- Chemistry Department, Bahauddin Zakarya University, Multan, Pakistan
| |
Collapse
|