The active ingredients of natural herbs have been extracted to act on different targets in the body to exert multiple effects. However, traditional oral administration and intravenous injection of herbal medicines are also susceptible to many side effects. Transdermal drug delivery by microneedles can overcome the shortcomings of these traditional drug delivery systems. The active ingredients of natural herbs can be delivered to the dermis or the connective tissue layer by five types of microneedles: solid, hollow, coated, dissolving, and hydrogel. Subsequently, the herbal ingredients are delivered to different target points of the body through body circulation to exert their effects. In this study, we classified the microneedles that can deliver the active ingredients of natural herbs and summarized their advantages and disadvantages as well as their preparation methods and applications, to guide the development and clinical applications of other herbal transdermal microneedles.

1.
R.
Ganguly
,
A.
Gupta
, and
A. K.
Pandey
,
World J. Gastroenterol.
28
,
3047
(
2022
).
2.
C.
Cruz Martínez
,
M.
Diaz Gómez
, and
M. S.
Oh
,
Pharm. Biol.
55
,
1992
(
2017
).
3.
Zeyu
Xu
et al,
Adv. Drug Delivery Rev.
195
,
114764
(
2023
).
4.
Lucinda
Villaescusa
et al,
Int. J. Cardiol.
385
,
44
(
2023
).
5.
Jerome.
Sarris
,
Phytother. Res.
32
,
1147
(
2018
).
6.
Sumei
Wang
et al,
Am. J. Chin. Med.
48
,
1577
(
2020
).
7.
S
.
Kumar
,
A.
Mittal
,
D.
Babu
, and
A
.
Mittal
,
Curr. Diabetes Rev
.
17
,
437
(
2021
).
8.
Y.
Ma
,
W.
Tao
,
S. J.
Krebs
,
W. F.
Sutton
,
N. L.
Haigwood
, and
H. S.
Gill
,
Pharm. Res.
31
,
2393
(
2014
).
9.
Tejashree
Waghule
et al,
Biomed. Pharmacother.
109
,
1249
(
2019
).
10.
12.
Rachel L.
Creighton
and
Kim A.
Woodrow
,
Adv. Healthcare Mater.
8
,
1801180
(
2019
).
13.
Timothy M.
Blicharz
et al,
Nat. Biomed. Eng.
2
,
151
(
2018
).
14.
Maria
Bernadete Riemma Pierre
and
Fabia
Cristina Rossetti
,
Curr. Drug Targets
15
,
281
(
2014
).
15.
Stephany Di Carla
Santos
et al,
Int. J. Pharm.
592
,
120050
(
2021
).
16.
A.
Gowda
,
B.
Healey
,
H.
Ezaldein
, and
M.
Merati
,
J. Clin. Aesth. Dermatol.
14
,
45
(
2021
).
18.
Xiao
Tang
et al,
Front. Bioeng. Biotechnol.
11
,
1283771
(
2023
).
19.
H.
Shi
,
J.
Zhou
,
Y.
Wang
,
Y.
Zhu
,
D.
Lin
,
L
Lei
,
S.
Vakal
,
J.
Wang
, and
X. A.
Li
,
Small
18
,
e2104657
(
2022
).
20.
Ying
Hao
et al,
J. Biomed. Nanotechnol.
13
,
1581
(
2017
).
21.
Stephanie Ingemann
Bisgaard
et al,
Biomater. Adv.
155
,
213659
(
2023
).
22.
Youssef W.
Naguib
,
Amit
Kumar
, and
Zhengrong
Cui
,
Acta Pharm. Sin. B
4
,
94
(
2014
).
23.
T.
Guo
,
Y.
Zhang
,
Z.
Li
,
J.
Zhao
, and
N.
Feng
,
Artif. Cells Nanomed. Biotechnol.
46
,
1541
(
2018
).
24.
25.
Akhilesh Kumar
Shakya
et al,
J. Controlled Release
314
,
38
(
2019
).
26.
Jason
Jiang
et al,
Invest. Ophthalmol. Visual Sci.
48
,
4038
(
2007
).
27.
James J.
Norman
et al,
Pediatr. Diabetes
14
,
459
(
2013
).
28.
Heba
Abd-El-Azim
et al,
J. Controlled Release
348
,
849
(
2022
).
29.
Ming-Hung
Ling
and
Mei-Chin
Chen
,
Acta Biomater.
9
,
8952
(
2013
).
30.
Katarzyna
Migalska
et al,
Pharm. Res.
28
,
1919
(
2011
).
32.
Ziting
Cheng
et al,
Drug Delivery Trans. Res.
10
,
1520
(
2020
).
33.
34.
C.
He
,
Z.
Fang
,
H.
Wu
,
X.
Li
,
L.
Cheng
,
Y.
Wen
, and
J.
Lin
,
Heliyon
10
,
e33025
(
2024
).
35.
Xingwu
Zhou
et al,
Adv. Healthcare Mater.
9
,
2000527
(
2020
).
36.
Cameron
Ryall
et al,
Int. J. Pharm.
627
,
122221
(
2022
).
37.
X.
Luan
,
X.
Zhang
,
Q.
Luan
,
J.
Gan
,
Y.
Wang
, and
Y.
Zhao
,
Research (Wash DC)
7
,
0420
(
2024
).
38.
Md Jasim
Uddin
et al,
Int. J. Pharm.
494
,
593
(
2015
).
39.
Wenqin
Ding
et al,
Drug Delivery Trans. Res.
14
,
2461
(
2024
).
40.
Yue
Shan
et al,
J. Nanobiotechnol.
20
,
238
(
2022
).
41.
Q.
Yang
et al,
Regen Biomater.
11
,
bae086
(
2024
).
42.
J.
Chudzińska
,
A.
Wawrzyńczak
, and
A.
Feliczak-Guzik
,
Polymers (Basel).
16
,
1396
(
2024
).
43.
44.
Manita
Dangol
et al,
J. Controlled Release
265
,
41
(
2017
).
45.
Sang-Kuk
Han
,
Seung-Jun
Lee
, and
Hun-Yong
Ha
,
Processes
9
,
321
(
2021
).
46.
Galit H.
Frydman
et al,
Sci. Rep.
10
,
13229
(
2020
).
47.
Yanshan
Zhan
et al,
Chin. Herb. Med.
15
,
251
(
2023
).
48.
Jiangdong
Tang
et al,
Skin Res. Technol.
30
,
e13671
(
2024
).
49.
50.
Praveen K.
Srivastava
and
Hetal P.
Thakkar
,
Eur. J. Pharm. Biopharm.
156
,
176
(
2020
).
51.
Song
Li
et al,
Bioeng. Trans. Med.
6
,
e10222
(
2021
).
52.
X.
Fu
,
H.
Xian
,
C.
Xia
,
Y.
Liu
,
S.
Du
,
B.
Wang
,
P.
Xue
,
B.
Wang
, and
Y.
Kang
,
Int. J. Pharm.
666
,
124768
(
2024
).
53.
Franz
Laermer
et al, “
Deep reactive ion etching
,” in
Handbook of Silicon Based MEMS Materials and Technologies
(
Elsevier
,
Amsterdam, the Netherlands
,
2020
), pp.
417
446
.
54.
Cheng Guo
Li
et al,
Biomed. Microdevices
15
,
17
(
2013
).
55.
Olivia
Howells
et al,
Eur. J. Pharm. Biopharm.
171
,
19
(
2022
).
56.
Hayato
Izumi
and
Seiji
Aoyagi
,
IEEJ Trans. Electr. Electron. Eng.
2
,
328
(
2007
).
57.
Nicolle
Wilke
et al,
Microelectron. J.
36
,
650
(
2005
).
58.
Markku
Tilli
et al,
Handbook of Silicon Based MEMS Materials and Technologies
(
Elsevier
,
Amsterdam, the Netherlands
,
2020
).
60.
Sharvari M.
Kshirsagar
,
Thomas
Kipping
, and
Ajay K.
Banga
,
Pharm. Res.
39
,
3301
(
2022
).
61.
Nae-Won
Kang
et al,
Expert Opin. Drug Delivery
18
,
929
(
2021
).
62.
Min
Wang
,
Lianzhe
Hu
, and
Chenjie
Xu
,
Lab Chip
17
,
1373
(
2017
).
63.
Ana Sara
Cordeiro
et al,
Pharm. Res.
37
,
1
(
2020
).
64.
65.
Dorota
Tomczak
et al,
Materials
17
,
322
(
2024
).
66.
Q.
Luan
,
R.
Qiao
,
X.
Wu
,
J.
Shan
,
C.
Song
,
X.
Zhao
, and
Y.
Zhao
,
Small
,
20
e2404850
(
2024
).
68.
Christian
Duvillard
et al,
Ann. Otol. Rhinol. Laryngol.
113
,
229
(
2004
).
69.
Yunzhe
Ma
et al,
Biomed. Microdevices
17
,
1
(
2015
).
70.
So Young
Park
et al,
Mater. Sci. Eng. C
42
,
757
(
2014
).
71.
Lingli
Hu
et al,
Int. J. Biol. Macromol.
117
,
928
(
2018
).
72.
Xiaoyu
Ning
et al,
Acta Pharm. Sin. B
11
,
2937
(
2021
).
73.
Philip
Scheltens
et al,
The Lancet
388
,
505
(
2016
).
74.
75.
W. H.
Liu
et al,
J. Controlled Release
107
,
417
(
2005
).
77.
D.
Filho
,
M.
Guerrero
,
M.
Pariguana
,
A.
Marican
, and
E. F.
Durán-Lara
,
Pharmaceutics
15
,
2444
(
2023
).
78.
S.
Odinotski
,
K.
Dhingra
,
A.
GhavamiNejad
,
H.
Zheng
,
P.
GhavamiNejad
,
H.
Gaouda
,
D.
Mohammadrezaei
, and
M.
Poudineh
,
Small
18
,
e2200201
(
2022
).
80.
Y.
Wang
,
H.
Yu
,
L.
Wang
,
J.
Hu
, and
J.
Feng
,
Biomater. Sci.
11
,
5410
(
2023
).
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