Navigation Links
Silk microneedles deliver controlled-release drugs painlessly
Date:12/21/2011

MEDFORD/SOMERVILLE, Mass. -- Bioengineers at Tufts University School of Engineering have developed a new silk-based microneedle system able to deliver precise amounts of drugs over time and without need for refrigeration. The tiny needles can be fabricated under normal temperature and pressure and from water, so they can be loaded with sensitive biochemical compounds and maintain their activity prior to use. They are also biodegradable and biocompatible.

The research paper "Fabrication of Silk Microneedles for Controlled-Release Drug Delivery" appeared in Advanced Functional Materials December 2 online in advance of print.

The Tufts researchers successfully demonstrated the ability of the silk microneedles to deliver a large-molecule, enzymatic model drug, horseradish peroxidase (HRP), at controlled rates while maintaining bioactivity. In addition, silk microneedles loaded with tetracycline were found to inhibit the growth of Staphylococcus aureus, demonstrating the potential of the microneedles to prevent local infections while also delivering therapeutics.

"By adjusting the post-processing conditions of the silk protein and varying the drying time of the silk protein, we were able to precisely control the drug release rates in laboratory experiments," said Fiorenzo Omenetto, Ph.D., senior author on the paper. "The new system addresses long-standing drug delivery challenges, and we believe that the technology could also be applied to other biological storage applications."

The Drug Delivery Dilemma

While some drugs can be swallowed, others can't survive the gastrointestinal tract. Hypodermic injections can be painful and don't allow a slow release of medication. Only a limited number of small-molecule drugs can be transmitted through transdermal patches. Microneedlesno more than a micron in size and able to penetrate the upper layer of the skin without reaching nervesare emerging as a painless new dr
'/>"/>

Contact: Kim Thurler
kim.thurler@tufts.edu
617-627-3175
Tufts University
Source:Eurekalert

Page: 1 2

Related biology news :

1. ID Solutions Achieves Full-Production Delivery and Payment for Fingerprint Processing Software for TWIC
2. Jefferson scientists deliver toxic genes to effectively kill pancreatic cancer cells
3. Sig-Tec(R) and BIO-key(R) Deliver Advanced Biometric Security Solution to Ohio County Law Enforcement Agency
4. RNA molecules, delivery system improve vaccine responses, effectiveness
5. Self-assembling nano-fiber gel delivers high concentrations of clinically approved drugs
6. Depression during pregnancy can double risk of preterm delivery
7. New type of vaccines deliver stronger and faster immune response
8. MIT: Jeremy Nathans to deliver Scolnick Prize lecture
9. Nanotechnology holds promise for STD drug delivery
10. Striata and CIC Launch Integrated eSignature, eDelivery, and eBilling for the Financial Services Industry
11. Bulls-eye electrode helps interpret thoughts, deliver stimulus to aid paralyzed, epileptic patients
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:4/17/2014)... ALBUQUERQUE, N.M. A credit-card-sized anthrax detection cartridge developed ... small business makes testing safer, easier, faster and cheaper. ... causes anthrax, is commonly found in soils all over ... illness in both humans and animals. The bacteria can ... to B. anthracis may occur through skin ...
(Date:4/17/2014)... A Kansas State University engineer has developed a ... detects improvised explosive devices. The same technique could ... the Steven M. and Kay L. Theede chair ... nuclear engineering, and his research team have created ... or in car trunks. The distance detection method ...
(Date:4/17/2014)... Clemson professor Rajendra Singh Thursday as a "Champion ... expand solar deployment in the residential, commercial and ... Professor of Electrical and Computer Engineering and director ... a local hero leading the charge across the ... solar power and driving policy changes at the ...
Breaking Biology News(10 mins):Pocket-sized anthrax detector aids global agriculture 2Pocket-sized anthrax detector aids global agriculture 3Patented research remotely detects nitrogen-rich explosives 2White House honors Clemson professor as 'Champion of Change' for solar deployment 2
... at the recent United Nations meeting emphasized nutrition as ... of State Hillary Clinton said a key focus is ... of Missouri nutrition experts say getting back to basics ... families and communities in many ways. As ...
... to be met is a significant increase in the use ... to grow in the future, because biomass is used in ... and various types of materials. The planning of biomass usage ... gap between what is included in countries, and regions, current ...
... Clemson University researchers recently reported finding a new class ... how cells repair damaged DNA. The finding from Cao,s ... with computational chemist Brian Dominy appeared in the Sept. ... "A new family of deamination repair enzymes in ...
Cached Biology News:Eating balanced meals, farm-fresh produce benefits families, communities, nutrition researchers say 2Better planning required if EU is to meet energy targets 2Clemson University biochemists identify new genetic code repair tool 2
(Date:1/15/2014)... January 15, 2014 A study has been ... the Formula 1 track could help to tackle the problem ... (MAT), Stowhealth (a GP surgery based in Stowmarket) and academics ... Simplyhealth. Telemetry technology, which is inspired by equipment ...
(Date:1/15/2014)... Rochester, NY (PRWEB) January 15, 2014 The ... cause a major disease. One of these latent viruses is ... is rheumatoid arthritis (RA). Rheumatoid arthritis (RA) is a chronic ... the theory, a study found that RA patients have high ...
(Date:1/15/2014)... Freeslate, Inc ., the leading ... Lupin Limited, one of India’s top five pharmaceutical companies, ... System for high throughput solid form screening. ... a wide range of quality, affordable generic and branded ...
(Date:1/14/2014)... (PRWEB) January 14, 2014 Date: Friday, April ... Location: Warrington Country Club, 1360 Almshouse Road, Warrington, Pa. ... nonprofit organization solely dedicated to finding a cure for hepatitis ... worldwide, will host its annual Crystal Ball on Friday, April ...
Breaking Biology Technology:Formula 1 Technology Tackles Obesity in Unique Healthcare Partnership 2Formula 1 Technology Tackles Obesity in Unique Healthcare Partnership 3Formula 1 Technology Tackles Obesity in Unique Healthcare Partnership 4Study: Rheumatoid Arthritis (RA) Patients Have EBV; The CBCD Says this is Consistent with Microcompetition 2Study: Rheumatoid Arthritis (RA) Patients Have EBV; The CBCD Says this is Consistent with Microcompetition 3Lupin Selects Freeslate’s CM Protégé PharmD System to Accelerate Polymorph Screening for Drug Development 2Lupin Selects Freeslate’s CM Protégé PharmD System to Accelerate Polymorph Screening for Drug Development 3Hepatitis B Foundation to Host Annual Crystal Ball Gala 2
... and OSAKA, Japan, May 18, 2011 Cellectis ... genome customization specialist, has appointed Wako Pure Chemical ... Company,s broad portfolio of research products and services, ... Chemical Industries is a leading distributor of research ...
... SAN JOSE, Calif., May 18, 2011 Oclaro, Inc. ... optical communications and laser solutions, today announced that its ... by Pantec Biosolutions, the leading provider of epidermal medical ... Laser Epidermal System) platform. This cutting-edge new laser platform ...
... May 17, 2011 New data presented today ... moderate to severe chronic prostatitis/chronic pelvic pain syndrome ... meeting of the American Urological Association, RAPAFLO(R) also ... of life. Chronic prostatitis/chronic pelvic pain ...
Cached Biology Technology:Cellectis bioresearch Appoints Wako as Exclusive Distributor of its Genome Customization Solutions in Japan 2Pantec Biosolutions Selects Oclaro Laser Diode Bars for Transdermal Drug Delivery and Tissue Ablation Systems 2Pantec Biosolutions Selects Oclaro Laser Diode Bars for Transdermal Drug Delivery and Tissue Ablation Systems 3Pantec Biosolutions Selects Oclaro Laser Diode Bars for Transdermal Drug Delivery and Tissue Ablation Systems 4Watson Pharmaceuticals Announces New Research Showing RAPAFLO(R) (silodosin) Improves Outcomes for Chronic Prostatitis/Chronic Pelvic Pain Syndrome 2Watson Pharmaceuticals Announces New Research Showing RAPAFLO(R) (silodosin) Improves Outcomes for Chronic Prostatitis/Chronic Pelvic Pain Syndrome 3Watson Pharmaceuticals Announces New Research Showing RAPAFLO(R) (silodosin) Improves Outcomes for Chronic Prostatitis/Chronic Pelvic Pain Syndrome 4Watson Pharmaceuticals Announces New Research Showing RAPAFLO(R) (silodosin) Improves Outcomes for Chronic Prostatitis/Chronic Pelvic Pain Syndrome 5Watson Pharmaceuticals Announces New Research Showing RAPAFLO(R) (silodosin) Improves Outcomes for Chronic Prostatitis/Chronic Pelvic Pain Syndrome 6
Component of HyperMu™ Insertion Kit...
Request Info...
... x 2 , Maintenance ... /each , Immunizations/Boost injections x5 ... ml) x1 /each , Production bleed ... Final Bleed ~ 100 ml blood (~50 ml ...
... 500 g protein in ... mouse whole cell lysate; Abelson transformed macrophage ... as Western blotting positive control, ... and thawing should be minimized, ...
Biology Products: